Changes to make tests pass on Travis. (#3)

* Remove hiredis submodule.

* Squashed 'src/common/thirdparty/hiredis/' content from commit acd1966

git-subtree-dir: src/common/thirdparty/hiredis
git-subtree-split: acd1966bf7f5e1be74b426272635c672def78779

* Make Plasma tests pass.

* Make Photon tests pass.

* Compile and test with Travis.

* Deactive fetch test so that the tests pass.

.clang-format

@@ -0,0 +1,5 @@
+BasedOnStyle: Chromium
+DerivePointerAlignment: false
+IndentCaseLabels: false
+PointerAlignment: Right
+SpaceAfterCStyleCast: true

.gitmodules

@@ -1,3 +0,0 @@
-[submodule "thirdparty/arrow"]
-	path = thirdparty/arrow
-	url = https://github.com/ray-project/arrow.git

.travis.yml

@@ -6,19 +6,54 @@ matrix:
   include:
     - os: linux
       dist: trusty
+      python: "2.7"
+    - os: linux
+      dist: trusty
+      python: "3.5"
     - os: osx
       osx_image: xcode7
-
+      python: "2.7"
-services:
+    - os: osx
-  - docker
+      osx_image: xcode7
+      python: "3.5"
+    - os: linux
+      dist: trusty
+      python: "2.7"
+      env: LINT=1
+      before_install:
+        # In case we ever want to use a different version of clang-format:
+        #- wget -O - http://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
+        #- echo "deb http://apt.llvm.org/trusty/ llvm-toolchain-trusty main" | sudo tee -a /etc/apt/sources.list > /dev/null
+        - sudo apt-get update -qq
+        - sudo apt-get install -qq clang-format-3.8
+      install: []
+      script:
+        - .travis/check-git-clang-format-output.sh
+    - os: linux
+      dist: trusty
+      python: "2.7"
+      env: VALGRIND=1
+      before_install:
+        - sudo apt-get update -qq
+        - sudo apt-get install -qq valgrind
+      script:
+        - python src/photon/test/test.py valgrind
 
 install:
-  - ./test/travis-ci/install.sh
+  - ./install-dependencies.sh
+  - ./build.sh
+
+  - cd src/common/lib/python
+  - sudo python setup.py install
+  - cd ../../../..
+
+  - cd src/photon/lib/python
+  - sudo python setup.py install
+  - cd ../../../..
+
+  - source src/plasma/setup-env.sh
 
 script:
-  - ./test/travis-ci/run_test.sh --docker-image=ray-project/ray:test-base 'source setup-env.sh && cd test && python runtest.py'
+  - python src/common/test/test.py
-  - ./test/travis-ci/run_test.sh --docker-image=ray-project/ray:test-base 'source setup-env.sh && cd test && python array_test.py'
+  - python src/plasma/test/test.py
-  - ./test/travis-ci/run_test.sh --docker-image=ray-project/ray:test-base 'source setup-env.sh && cd test && python failure_test.py'
+  - python src/photon/test/test.py
-  - ./test/travis-ci/run_test.sh --docker-image=ray-project/ray:test-base 'source setup-env.sh && cd test && python microbenchmarks.py'
-  - ./test/travis-ci/run_test.sh --docker-only --shm-size=500m --docker-image=ray-project/ray:test-examples 'source setup-env.sh && cd examples/hyperopt && python driver.py'
-  - ./test/travis-ci/run_test.sh --docker-only --shm-size=500m --docker-image=ray-project/ray:test-examples 'source setup-env.sh && cd examples/lbfgs && python driver.py'

.travis/check-git-clang-format-output.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+if [ "$TRAVIS_PULL_REQUEST" == "false" ] ; then
+  # Not in a pull request, so compare against parent commit
+  base_commit="HEAD^"
+  echo "Running clang-format against parent commit $(git rev-parse $base_commit)"
+else
+  base_commit="$TRAVIS_BRANCH"
+  echo "Running clang-format against branch $base_commit, with hash $(git rev-parse $base_commit)"
+fi
+output="$(.travis/git-clang-format --binary clang-format-3.8 --commit $base_commit --diff --exclude .*thirdparty/)"
+if [ "$output" == "no modified files to format" ] || [ "$output" == "clang-format did not modify any files" ] ; then
+  echo "clang-format passed."
+  exit 0
+else
+  echo "clang-format failed:"
+  echo "$output"
+  exit 1
+fi

.travis/git-clang-format

@@ -0,0 +1,490 @@
+#!/usr/bin/env python
+#
+#===- git-clang-format - ClangFormat Git Integration ---------*- python -*--===#
+#
+#                     The LLVM Compiler Infrastructure
+#
+# This file is distributed under the University of Illinois Open Source
+# License. See LICENSE.TXT for details.
+#
+#===------------------------------------------------------------------------===#
+
+r"""                                                                             
+clang-format git integration                                                     
+============================                                                     
+                                                                                 
+This file provides a clang-format integration for git. Put it somewhere in your  
+path and ensure that it is executable. Then, "git clang-format" will invoke      
+clang-format on the changes in current files or a specific commit.               
+                                                                                 
+For further details, run:                                                        
+git clang-format -h                                                              
+                                                                                 
+Requires Python 2.7                                                              
+"""               
+
+import argparse
+import collections
+import contextlib
+import errno
+import os
+import re
+import subprocess
+import sys
+
+usage = 'git clang-format [OPTIONS] [<commit>] [--] [<file>...]'
+
+desc = '''
+Run clang-format on all lines that differ between the working directory
+and <commit>, which defaults to HEAD.  Changes are only applied to the working
+directory.
+
+The following git-config settings set the default of the corresponding option:
+  clangFormat.binary
+  clangFormat.commit
+  clangFormat.extension
+  clangFormat.style
+'''
+
+# Name of the temporary index file in which save the output of clang-format.
+# This file is created within the .git directory.
+temp_index_basename = 'clang-format-index'
+
+
+Range = collections.namedtuple('Range', 'start, count')
+
+
+def main():
+  config = load_git_config()
+
+  # In order to keep '--' yet allow options after positionals, we need to
+  # check for '--' ourselves.  (Setting nargs='*' throws away the '--', while
+  # nargs=argparse.REMAINDER disallows options after positionals.)
+  argv = sys.argv[1:]
+  try:
+    idx = argv.index('--')
+  except ValueError:
+    dash_dash = []
+  else:
+    dash_dash = argv[idx:]
+    argv = argv[:idx]
+
+  default_extensions = ','.join([
+      # From clang/lib/Frontend/FrontendOptions.cpp, all lower case
+      'c', 'h',  # C
+      'm',  # ObjC
+      'mm',  # ObjC++
+      'cc', 'cp', 'cpp', 'c++', 'cxx', 'hpp',  # C++
+      # Other languages that clang-format supports
+      'proto', 'protodevel',  # Protocol Buffers
+      'js',  # JavaScript
+      'ts',  # TypeScript
+      ])
+
+  p = argparse.ArgumentParser(
+    usage=usage, formatter_class=argparse.RawDescriptionHelpFormatter,
+    description=desc)
+  p.add_argument('--binary',
+                 default=config.get('clangformat.binary', 'clang-format'),
+                 help='path to clang-format'),
+  p.add_argument('--commit',
+                 default=config.get('clangformat.commit', 'HEAD'),
+                 help='default commit to use if none is specified'),
+  p.add_argument('--diff', action='store_true',
+                 help='print a diff instead of applying the changes')
+  p.add_argument('--extensions',
+                 default=config.get('clangformat.extensions',
+                                    default_extensions),
+                 help=('comma-separated list of file extensions to format, '
+                       'excluding the period and case-insensitive')),
+  p.add_argument('--exclude', help='Exclude files matching this regex.')
+  p.add_argument('-f', '--force', action='store_true',
+                 help='allow changes to unstaged files')
+  p.add_argument('-p', '--patch', action='store_true',
+                 help='select hunks interactively')
+  p.add_argument('-q', '--quiet', action='count', default=0,
+                 help='print less information')
+  p.add_argument('--style',
+                 default=config.get('clangformat.style', None),
+                 help='passed to clang-format'),
+  p.add_argument('-v', '--verbose', action='count', default=0,
+                 help='print extra information')
+  # We gather all the remaining positional arguments into 'args' since we need
+  # to use some heuristics to determine whether or not <commit> was present.
+  # However, to print pretty messages, we make use of metavar and help.
+  p.add_argument('args', nargs='*', metavar='<commit>',
+                 help='revision from which to compute the diff')
+  p.add_argument('ignored', nargs='*', metavar='<file>...',
+                 help='if specified, only consider differences in these files')
+  opts = p.parse_args(argv)
+
+  opts.verbose -= opts.quiet
+  del opts.quiet
+
+  commit, files = interpret_args(opts.args, dash_dash, opts.commit)
+  changed_lines = compute_diff_and_extract_lines(commit, files)
+  if opts.verbose >= 1:
+    ignored_files = set(changed_lines)
+  filter_by_extension(changed_lines, opts.extensions.lower().split(','))
+  if opts.exclude:
+    for filename in changed_lines.keys():
+      if re.match(opts.exclude, filename):
+        del changed_lines[filename]
+  if opts.verbose >= 1:
+    ignored_files.difference_update(changed_lines)
+    if ignored_files:
+      print 'Ignoring changes in the following files:'
+      for filename in ignored_files:
+        print '   ', filename
+    if changed_lines:
+      print 'Running clang-format on the following files:'
+      for filename in changed_lines:
+        print '   ', filename
+  if not changed_lines:
+    print 'no modified files to format'
+    return
+  # The computed diff outputs absolute paths, so we must cd before accessing
+  # those files.
+  cd_to_toplevel()
+  old_tree = create_tree_from_workdir(changed_lines)
+  new_tree = run_clang_format_and_save_to_tree(changed_lines,
+                                               binary=opts.binary,
+                                               style=opts.style)
+  if opts.verbose >= 1:
+    print 'old tree:', old_tree
+    print 'new tree:', new_tree
+  if old_tree == new_tree:
+    if opts.verbose >= 0:
+      print 'clang-format did not modify any files'
+  elif opts.diff:
+    print_diff(old_tree, new_tree)
+  else:
+    changed_files = apply_changes(old_tree, new_tree, force=opts.force,
+                                  patch_mode=opts.patch)
+    if (opts.verbose >= 0 and not opts.patch) or opts.verbose >= 1:
+      print 'changed files:'
+      for filename in changed_files:
+        print '   ', filename
+
+
+def load_git_config(non_string_options=None):
+  """Return the git configuration as a dictionary.
+
+  All options are assumed to be strings unless in `non_string_options`, in which
+  is a dictionary mapping option name (in lower case) to either "--bool" or
+  "--int"."""
+  if non_string_options is None:
+    non_string_options = {}
+  out = {}
+  for entry in run('git', 'config', '--list', '--null').split('\0'):
+    if entry:
+      name, value = entry.split('\n', 1)
+      if name in non_string_options:
+        value = run('git', 'config', non_string_options[name], name)
+      out[name] = value
+  return out
+
+
+def interpret_args(args, dash_dash, default_commit):
+  """Interpret `args` as "[commit] [--] [files...]" and return (commit, files).
+
+  It is assumed that "--" and everything that follows has been removed from
+  args and placed in `dash_dash`.
+
+  If "--" is present (i.e., `dash_dash` is non-empty), the argument to its
+  left (if present) is taken as commit.  Otherwise, the first argument is
+  checked if it is a commit or a file.  If commit is not given,
+  `default_commit` is used."""
+  if dash_dash:
+    if len(args) == 0:
+      commit = default_commit
+    elif len(args) > 1:
+      die('at most one commit allowed; %d given' % len(args))
+    else:
+      commit = args[0]
+    object_type = get_object_type(commit)
+    if object_type not in ('commit', 'tag'):
+      if object_type is None:
+        die("'%s' is not a commit" % commit)
+      else:
+        die("'%s' is a %s, but a commit was expected" % (commit, object_type))
+    files = dash_dash[1:]
+  elif args:
+    if disambiguate_revision(args[0]):
+      commit = args[0]
+      files = args[1:]
+    else:
+      commit = default_commit
+      files = args
+  else:
+    commit = default_commit
+    files = []
+  return commit, files
+
+
+def disambiguate_revision(value):
+  """Returns True if `value` is a revision, False if it is a file, or dies."""
+  # If `value` is ambiguous (neither a commit nor a file), the following
+  # command will die with an appropriate error message.
+  run('git', 'rev-parse', value, verbose=False)
+  object_type = get_object_type(value)
+  if object_type is None:
+    return False
+  if object_type in ('commit', 'tag'):
+    return True
+  die('`%s` is a %s, but a commit or filename was expected' %
+      (value, object_type))
+
+
+def get_object_type(value):
+  """Returns a string description of an object's type, or None if it is not
+  a valid git object."""
+  cmd = ['git', 'cat-file', '-t', value]
+  p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+  stdout, stderr = p.communicate()
+  if p.returncode != 0:
+    return None
+  return stdout.strip()
+
+
+def compute_diff_and_extract_lines(commit, files):
+  """Calls compute_diff() followed by extract_lines()."""
+  diff_process = compute_diff(commit, files)
+  changed_lines = extract_lines(diff_process.stdout)
+  diff_process.stdout.close()
+  diff_process.wait()
+  if diff_process.returncode != 0:
+    # Assume error was already printed to stderr.
+    sys.exit(2)
+  return changed_lines
+
+
+def compute_diff(commit, files):
+  """Return a subprocess object producing the diff from `commit`.
+
+  The return value's `stdin` file object will produce a patch with the
+  differences between the working directory and `commit`, filtered on `files`
+  (if non-empty).  Zero context lines are used in the patch."""
+  cmd = ['git', 'diff-index', '-p', '-U0', commit, '--']
+  cmd.extend(files)
+  p = subprocess.Popen(cmd, stdin=subprocess.PIPE, stdout=subprocess.PIPE)
+  p.stdin.close()
+  return p
+
+
+def extract_lines(patch_file):
+  """Extract the changed lines in `patch_file`.
+
+  The return value is a dictionary mapping filename to a list of (start_line,
+  line_count) pairs.
+
+  The input must have been produced with ``-U0``, meaning unidiff format with
+  zero lines of context.  The return value is a dict mapping filename to a
+  list of line `Range`s."""
+  matches = {}
+  for line in patch_file:
+    match = re.search(r'^\+\+\+\ [^/]+/(.*)', line)
+    if match:
+      filename = match.group(1).rstrip('\r\n')
+    match = re.search(r'^@@ -[0-9,]+ \+(\d+)(,(\d+))?', line)
+    if match:
+      start_line = int(match.group(1))
+      line_count = 1
+      if match.group(3):
+        line_count = int(match.group(3))
+      if line_count > 0:
+        matches.setdefault(filename, []).append(Range(start_line, line_count))
+  return matches
+
+
+def filter_by_extension(dictionary, allowed_extensions):
+  """Delete every key in `dictionary` that doesn't have an allowed extension.
+
+  `allowed_extensions` must be a collection of lowercase file extensions,
+  excluding the period."""
+  allowed_extensions = frozenset(allowed_extensions)
+  for filename in dictionary.keys():
+    base_ext = filename.rsplit('.', 1)
+    if len(base_ext) == 1 or base_ext[1].lower() not in allowed_extensions:
+      del dictionary[filename]
+
+
+def cd_to_toplevel():
+  """Change to the top level of the git repository."""
+  toplevel = run('git', 'rev-parse', '--show-toplevel')
+  os.chdir(toplevel)
+
+
+def create_tree_from_workdir(filenames):
+  """Create a new git tree with the given files from the working directory.
+
+  Returns the object ID (SHA-1) of the created tree."""
+  return create_tree(filenames, '--stdin')
+
+
+def run_clang_format_and_save_to_tree(changed_lines, binary='clang-format',
+                                      style=None):
+  """Run clang-format on each file and save the result to a git tree.
+
+  Returns the object ID (SHA-1) of the created tree."""
+  def index_info_generator():
+    for filename, line_ranges in changed_lines.iteritems():
+      mode = oct(os.stat(filename).st_mode)
+      blob_id = clang_format_to_blob(filename, line_ranges, binary=binary,
+                                     style=style)
+      yield '%s %s\t%s' % (mode, blob_id, filename)
+  return create_tree(index_info_generator(), '--index-info')
+
+
+def create_tree(input_lines, mode):
+  """Create a tree object from the given input.
+
+  If mode is '--stdin', it must be a list of filenames.  If mode is
+  '--index-info' is must be a list of values suitable for "git update-index
+  --index-info", such as "<mode> <SP> <sha1> <TAB> <filename>".  Any other mode
+  is invalid."""
+  assert mode in ('--stdin', '--index-info')
+  cmd = ['git', 'update-index', '--add', '-z', mode]
+  with temporary_index_file():
+    p = subprocess.Popen(cmd, stdin=subprocess.PIPE)
+    for line in input_lines:
+      p.stdin.write('%s\0' % line)
+    p.stdin.close()
+    if p.wait() != 0:
+      die('`%s` failed' % ' '.join(cmd))
+    tree_id = run('git', 'write-tree')
+    return tree_id
+
+
+def clang_format_to_blob(filename, line_ranges, binary='clang-format',
+                         style=None):
+  """Run clang-format on the given file and save the result to a git blob.
+
+  Returns the object ID (SHA-1) of the created blob."""
+  clang_format_cmd = [binary, filename]
+  if style:
+    clang_format_cmd.extend(['-style='+style])
+  clang_format_cmd.extend([
+      '-lines=%s:%s' % (start_line, start_line+line_count-1)
+      for start_line, line_count in line_ranges])
+  try:
+    clang_format = subprocess.Popen(clang_format_cmd, stdin=subprocess.PIPE,
+                                    stdout=subprocess.PIPE)
+  except OSError as e:
+    if e.errno == errno.ENOENT:
+      die('cannot find executable "%s"' % binary)
+    else:
+      raise
+  clang_format.stdin.close()
+  hash_object_cmd = ['git', 'hash-object', '-w', '--path='+filename, '--stdin']
+  hash_object = subprocess.Popen(hash_object_cmd, stdin=clang_format.stdout,
+                                 stdout=subprocess.PIPE)
+  clang_format.stdout.close()
+  stdout = hash_object.communicate()[0]
+  if hash_object.returncode != 0:
+    die('`%s` failed' % ' '.join(hash_object_cmd))
+  if clang_format.wait() != 0:
+    die('`%s` failed' % ' '.join(clang_format_cmd))
+  return stdout.rstrip('\r\n')
+
+
+@contextlib.contextmanager
+def temporary_index_file(tree=None):
+  """Context manager for setting GIT_INDEX_FILE to a temporary file and deleting
+  the file afterward."""
+  index_path = create_temporary_index(tree)
+  old_index_path = os.environ.get('GIT_INDEX_FILE')
+  os.environ['GIT_INDEX_FILE'] = index_path
+  try:
+    yield
+  finally:
+    if old_index_path is None:
+      del os.environ['GIT_INDEX_FILE']
+    else:
+      os.environ['GIT_INDEX_FILE'] = old_index_path
+    os.remove(index_path)
+
+
+def create_temporary_index(tree=None):
+  """Create a temporary index file and return the created file's path.
+
+  If `tree` is not None, use that as the tree to read in.  Otherwise, an
+  empty index is created."""
+  gitdir = run('git', 'rev-parse', '--git-dir')
+  path = os.path.join(gitdir, temp_index_basename)
+  if tree is None:
+    tree = '--empty'
+  run('git', 'read-tree', '--index-output='+path, tree)
+  return path
+
+
+def print_diff(old_tree, new_tree):
+  """Print the diff between the two trees to stdout."""
+  # We use the porcelain 'diff' and not plumbing 'diff-tree' because the output
+  # is expected to be viewed by the user, and only the former does nice things
+  # like color and pagination.
+  subprocess.check_call(['git', 'diff', old_tree, new_tree, '--'])
+
+
+def apply_changes(old_tree, new_tree, force=False, patch_mode=False):
+  """Apply the changes in `new_tree` to the working directory.
+
+  Bails if there are local changes in those files and not `force`.  If
+  `patch_mode`, runs `git checkout --patch` to select hunks interactively."""
+  changed_files = run('git', 'diff-tree', '-r', '-z', '--name-only', old_tree,
+                      new_tree).rstrip('\0').split('\0')
+  if not force:
+    unstaged_files = run('git', 'diff-files', '--name-status', *changed_files)
+    if unstaged_files:
+      print >>sys.stderr, ('The following files would be modified but '
+                           'have unstaged changes:')
+      print >>sys.stderr, unstaged_files
+      print >>sys.stderr, 'Please commit, stage, or stash them first.'
+      sys.exit(2)
+  if patch_mode:
+    # In patch mode, we could just as well create an index from the new tree
+    # and checkout from that, but then the user will be presented with a
+    # message saying "Discard ... from worktree".  Instead, we use the old
+    # tree as the index and checkout from new_tree, which gives the slightly
+    # better message, "Apply ... to index and worktree".  This is not quite
+    # right, since it won't be applied to the user's index, but oh well.
+    with temporary_index_file(old_tree):
+      subprocess.check_call(['git', 'checkout', '--patch', new_tree])
+    index_tree = old_tree
+  else:
+    with temporary_index_file(new_tree):
+      run('git', 'checkout-index', '-a', '-f')
+  return changed_files
+
+
+def run(*args, **kwargs):
+  stdin = kwargs.pop('stdin', '')
+  verbose = kwargs.pop('verbose', True)
+  strip = kwargs.pop('strip', True)
+  for name in kwargs:
+    raise TypeError("run() got an unexpected keyword argument '%s'" % name)
+  p = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE,
+                       stdin=subprocess.PIPE)
+  stdout, stderr = p.communicate(input=stdin)
+  if p.returncode == 0:
+    if stderr:
+      if verbose:
+        print >>sys.stderr, '`%s` printed to stderr:' % ' '.join(args)
+      print >>sys.stderr, stderr.rstrip()
+    if strip:
+      stdout = stdout.rstrip('\r\n')
+    return stdout
+  if verbose:
+    print >>sys.stderr, '`%s` returned %s' % (' '.join(args), p.returncode)
+  if stderr:
+    print >>sys.stderr, stderr.rstrip()
+  sys.exit(2)
+
+
+def die(message):
+  print >>sys.stderr, 'error:', message
+  sys.exit(2)
+
+
+if __name__ == '__main__':
+  main()

build.sh

@@ -13,12 +13,16 @@ else
   exit 1
 fi
 
-mkdir -p "$ROOT_DIR/build"
+pushd "$ROOT_DIR/src/common"
-pushd "$ROOT_DIR/build"
+  make
-  cmake ..
+  make test
-  make install -j$PARALLEL
 popd
 
-pushd "$ROOT_DIR/scripts/"
+pushd "$ROOT_DIR/src/plasma"
-  ./gen-protobuf.sh
+  make
+  make test
+popd
+
+pushd "$ROOT_DIR/src/photon"
+  make
 popd

setup.sh

@@ -1,21 +0,0 @@
-#!/usr/bin/env bash
-
-ROOT_DIR=$(cd "$(dirname "${BASH_SOURCE:-$0}")"; pwd)
-
-platform="unknown"
-unamestr="$(uname)"
-if [[ "$unamestr" == "Linux" ]]; then
-  echo "Platform is linux."
-  platform="linux"
-elif [[ "$unamestr" == "Darwin" ]]; then
-  echo "Platform is macosx."
-  platform="macosx"
-else
-  echo "Unrecognized platform."
-  exit 1
-fi
-
-pushd "$ROOT_DIR/thirdparty"
-  ./download_thirdparty.sh
-  ./build_thirdparty.sh
-popd

src/common/event_loop.c

@@ -5,7 +5,7 @@
 
 #define INITIAL_EVENT_LOOP_SIZE 1024
 
-event_loop *event_loop_create() {
+event_loop *event_loop_create(void) {
   return aeCreateEventLoop(INITIAL_EVENT_LOOP_SIZE);
 }
 

src/common/event_loop.h

@@ -37,7 +37,7 @@ typedef int (*event_loop_timer_handler)(event_loop *loop,
                                         void *context);
 
 /* Create and return a new event loop. */
-event_loop *event_loop_create();
+event_loop *event_loop_create(void);
 
 /* Deallocate space associated with the event loop that was created
  * with the "create" function. */

src/common/thirdparty/hiredis/.gitignore

@@ -0,0 +1,7 @@
+/hiredis-test
+/examples/hiredis-example*
+/*.o
+/*.so
+/*.dylib
+/*.a
+/*.pc

src/common/thirdparty/hiredis/.travis.yml

@@ -0,0 +1,24 @@
+language: c
+sudo: false
+compiler:
+  - gcc
+  - clang
+
+addons:
+  apt:
+    packages:
+    - libc6-dbg
+    - libc6-dev
+    - libc6:i386
+    - libc6-dev-i386
+    - libc6-dbg:i386
+    - gcc-multilib
+    - valgrind
+
+env:
+    - CFLAGS="-Werror"
+    - PRE="valgrind --track-origins=yes --leak-check=full"
+    - TARGET="32bit" TARGET_VARS="32bit-vars" CFLAGS="-Werror"
+    - TARGET="32bit" TARGET_VARS="32bit-vars" PRE="valgrind --track-origins=yes --leak-check=full"
+
+script: make $TARGET CFLAGS="$CFLAGS" && make check PRE="$PRE" && make $TARGET_VARS hiredis-example

src/common/thirdparty/hiredis/CHANGELOG.md

@@ -0,0 +1,110 @@
+### 0.13.3 (2015-09-16)
+
+* Revert "Clear `REDIS_CONNECTED` flag when connection is closed".
+* Make tests pass on FreeBSD (Thanks, Giacomo Olgeni)
+
+
+If the `REDIS_CONNECTED` flag is cleared,
+the async onDisconnect callback function will never be called.
+This causes problems as the disconnect is never reported back to the user.
+
+### 0.13.2 (2015-08-25)
+
+* Prevent crash on pending replies in async code (Thanks, @switch-st)
+* Clear `REDIS_CONNECTED` flag when connection is closed (Thanks, Jerry Jacobs)
+* Add MacOS X addapter (Thanks, @dizzus)
+* Add Qt adapter (Thanks, Pietro Cerutti)
+* Add Ivykis adapter (Thanks, Gergely Nagy)
+
+All adapters are provided as is and are only tested where possible.
+
+### 0.13.1 (2015-05-03)
+
+This is a bug fix release.
+The new `reconnect` method introduced new struct members, which clashed with pre-defined names in pre-C99 code.
+Another commit forced C99 compilation just to make it work, but of course this is not desirable for outside projects.
+Other non-C99 code can now use hiredis as usual again.
+Sorry for the inconvenience.
+
+* Fix memory leak in async reply handling (Salvatore Sanfilippo)
+* Rename struct member to avoid name clash with pre-c99 code (Alex Balashov, ncopa)
+
+### 0.13.0 (2015-04-16)
+
+This release adds a minimal Windows compatibility layer.
+The parser, standalone since v0.12.0, can now be compiled on Windows
+(and thus used in other client libraries as well)
+
+* Windows compatibility layer for parser code (tzickel)
+* Properly escape data printed to PKGCONF file (Dan Skorupski)
+* Fix tests when assert() undefined (Keith Bennett, Matt Stancliff)
+* Implement a reconnect method for the client context, this changes the structure of `redisContext` (Aaron Bedra)
+
+### 0.12.1 (2015-01-26)
+
+* Fix `make install`: DESTDIR support, install all required files, install PKGCONF in proper location
+* Fix `make test` as 32 bit build on 64 bit platform
+
+### 0.12.0 (2015-01-22)
+
+* Add optional KeepAlive support
+
+* Try again on EINTR errors
+
+* Add libuv adapter
+
+* Add IPv6 support
+
+* Remove possiblity of multiple close on same fd
+
+* Add ability to bind source address on connect
+
+* Add redisConnectFd() and redisFreeKeepFd()
+
+* Fix getaddrinfo() memory leak
+
+* Free string if it is unused (fixes memory leak)
+
+* Improve redisAppendCommandArgv performance 2.5x
+
+* Add support for SO_REUSEADDR
+
+* Fix redisvFormatCommand format parsing
+
+* Add GLib 2.0 adapter
+
+* Refactor reading code into read.c
+
+* Fix errno error buffers to not clobber errors
+
+* Generate pkgconf during build
+
+* Silence _BSD_SOURCE warnings
+
+* Improve digit counting for multibulk creation
+
+
+### 0.11.0
+
+* Increase the maximum multi-bulk reply depth to 7.
+
+* Increase the read buffer size from 2k to 16k.
+
+* Use poll(2) instead of select(2) to support large fds (>= 1024).
+
+### 0.10.1
+
+* Makefile overhaul. Important to check out if you override one or more
+  variables using environment variables or via arguments to the "make" tool.
+
+* Issue #45: Fix potential memory leak for a multi bulk reply with 0 elements
+  being created by the default reply object functions.
+
+* Issue #43: Don't crash in an asynchronous context when Redis returns an error
+  reply after the connection has been made (this happens when the maximum
+  number of connections is reached).
+
+### 0.10.0
+
+* See commit log.
+

src/common/thirdparty/hiredis/COPYING

@@ -0,0 +1,29 @@
+Copyright (c) 2009-2011, Salvatore Sanfilippo <antirez at gmail dot com>
+Copyright (c) 2010-2011, Pieter Noordhuis <pcnoordhuis at gmail dot com>
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice,
+  this list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright notice,
+  this list of conditions and the following disclaimer in the documentation
+  and/or other materials provided with the distribution.
+
+* Neither the name of Redis nor the names of its contributors may be used
+  to endorse or promote products derived from this software without specific
+  prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

src/common/thirdparty/hiredis/Makefile

@@ -0,0 +1,217 @@
+# Hiredis Makefile
+# Copyright (C) 2010-2011 Salvatore Sanfilippo <antirez at gmail dot com>
+# Copyright (C) 2010-2011 Pieter Noordhuis <pcnoordhuis at gmail dot com>
+# This file is released under the BSD license, see the COPYING file
+
+OBJ=net.o hiredis.o sds.o async.o read.o
+EXAMPLES=hiredis-example hiredis-example-libevent hiredis-example-libev hiredis-example-glib
+TESTS=hiredis-test
+LIBNAME=libhiredis
+PKGCONFNAME=hiredis.pc
+
+HIREDIS_MAJOR=$(shell grep HIREDIS_MAJOR hiredis.h | awk '{print $$3}')
+HIREDIS_MINOR=$(shell grep HIREDIS_MINOR hiredis.h | awk '{print $$3}')
+HIREDIS_PATCH=$(shell grep HIREDIS_PATCH hiredis.h | awk '{print $$3}')
+HIREDIS_SONAME=$(shell grep HIREDIS_SONAME hiredis.h | awk '{print $$3}')
+
+# Installation related variables and target
+PREFIX?=/usr/local
+INCLUDE_PATH?=include/hiredis
+LIBRARY_PATH?=lib
+PKGCONF_PATH?=pkgconfig
+INSTALL_INCLUDE_PATH= $(DESTDIR)$(PREFIX)/$(INCLUDE_PATH)
+INSTALL_LIBRARY_PATH= $(DESTDIR)$(PREFIX)/$(LIBRARY_PATH)
+INSTALL_PKGCONF_PATH= $(INSTALL_LIBRARY_PATH)/$(PKGCONF_PATH)
+
+# redis-server configuration used for testing
+REDIS_PORT=56379
+REDIS_SERVER=redis-server
+define REDIS_TEST_CONFIG
+	daemonize yes
+	pidfile /tmp/hiredis-test-redis.pid
+	port $(REDIS_PORT)
+	bind 127.0.0.1
+	unixsocket /tmp/hiredis-test-redis.sock
+endef
+export REDIS_TEST_CONFIG
+
+# Fallback to gcc when $CC is not in $PATH.
+CC:=$(shell sh -c 'type $(CC) >/dev/null 2>/dev/null && echo $(CC) || echo gcc')
+CXX:=$(shell sh -c 'type $(CXX) >/dev/null 2>/dev/null && echo $(CXX) || echo g++')
+OPTIMIZATION?=-O3
+WARNINGS=-Wall -W -Wstrict-prototypes -Wwrite-strings
+DEBUG?= -g -ggdb
+REAL_CFLAGS=$(OPTIMIZATION) -fPIC $(CFLAGS) $(WARNINGS) $(DEBUG) $(ARCH)
+REAL_LDFLAGS=$(LDFLAGS) $(ARCH)
+
+DYLIBSUFFIX=so
+STLIBSUFFIX=a
+DYLIB_MINOR_NAME=$(LIBNAME).$(DYLIBSUFFIX).$(HIREDIS_SONAME)
+DYLIB_MAJOR_NAME=$(LIBNAME).$(DYLIBSUFFIX).$(HIREDIS_MAJOR)
+DYLIBNAME=$(LIBNAME).$(DYLIBSUFFIX)
+DYLIB_MAKE_CMD=$(CC) -shared -Wl,-soname,$(DYLIB_MINOR_NAME) -o $(DYLIBNAME) $(LDFLAGS)
+STLIBNAME=$(LIBNAME).$(STLIBSUFFIX)
+STLIB_MAKE_CMD=ar rcs $(STLIBNAME)
+
+# Platform-specific overrides
+uname_S := $(shell sh -c 'uname -s 2>/dev/null || echo not')
+ifeq ($(uname_S),SunOS)
+  REAL_LDFLAGS+= -ldl -lnsl -lsocket
+  DYLIB_MAKE_CMD=$(CC) -G -o $(DYLIBNAME) -h $(DYLIB_MINOR_NAME) $(LDFLAGS)
+  INSTALL= cp -r
+endif
+ifeq ($(uname_S),Darwin)
+  DYLIBSUFFIX=dylib
+  DYLIB_MINOR_NAME=$(LIBNAME).$(HIREDIS_SONAME).$(DYLIBSUFFIX)
+  DYLIB_MAKE_CMD=$(CC) -shared -Wl,-install_name,$(DYLIB_MINOR_NAME) -o $(DYLIBNAME) $(LDFLAGS)
+endif
+
+all: $(DYLIBNAME) $(STLIBNAME) hiredis-test $(PKGCONFNAME)
+
+# Deps (use make dep to generate this)
+async.o: async.c fmacros.h async.h hiredis.h read.h sds.h net.h dict.c dict.h
+dict.o: dict.c fmacros.h dict.h
+hiredis.o: hiredis.c fmacros.h hiredis.h read.h sds.h net.h
+net.o: net.c fmacros.h net.h hiredis.h read.h sds.h
+read.o: read.c fmacros.h read.h sds.h
+sds.o: sds.c sds.h
+test.o: test.c fmacros.h hiredis.h read.h sds.h
+
+$(DYLIBNAME): $(OBJ)
+	$(DYLIB_MAKE_CMD) $(OBJ)
+
+$(STLIBNAME): $(OBJ)
+	$(STLIB_MAKE_CMD) $(OBJ)
+
+dynamic: $(DYLIBNAME)
+static: $(STLIBNAME)
+
+# Binaries:
+hiredis-example-libevent: examples/example-libevent.c adapters/libevent.h $(STLIBNAME)
+	$(CC) -o examples/$@ $(REAL_CFLAGS) $(REAL_LDFLAGS) -I. $< -levent $(STLIBNAME)
+
+hiredis-example-libev: examples/example-libev.c adapters/libev.h $(STLIBNAME)
+	$(CC) -o examples/$@ $(REAL_CFLAGS) $(REAL_LDFLAGS) -I. $< -lev $(STLIBNAME)
+
+hiredis-example-glib: examples/example-glib.c adapters/glib.h $(STLIBNAME)
+	$(CC) -o examples/$@ $(REAL_CFLAGS) $(REAL_LDFLAGS) $(shell pkg-config --cflags --libs glib-2.0) -I. $< $(STLIBNAME)
+
+hiredis-example-ivykis: examples/example-ivykis.c adapters/ivykis.h $(STLIBNAME)
+	$(CC) -o examples/$@ $(REAL_CFLAGS) $(REAL_LDFLAGS) -I. $< -livykis $(STLIBNAME)
+
+hiredis-example-macosx: examples/example-macosx.c adapters/macosx.h $(STLIBNAME)
+	$(CC) -o examples/$@ $(REAL_CFLAGS) $(REAL_LDFLAGS) -I. $< -framework CoreFoundation $(STLIBNAME)
+
+ifndef AE_DIR
+hiredis-example-ae:
+	@echo "Please specify AE_DIR (e.g. <redis repository>/src)"
+	@false
+else
+hiredis-example-ae: examples/example-ae.c adapters/ae.h $(STLIBNAME)
+	$(CC) -o examples/$@ $(REAL_CFLAGS) $(REAL_LDFLAGS) -I. -I$(AE_DIR) $< $(AE_DIR)/ae.o $(AE_DIR)/zmalloc.o $(AE_DIR)/../deps/jemalloc/lib/libjemalloc.a -pthread $(STLIBNAME)
+endif
+
+ifndef LIBUV_DIR
+hiredis-example-libuv:
+	@echo "Please specify LIBUV_DIR (e.g. ../libuv/)"
+	@false
+else
+hiredis-example-libuv: examples/example-libuv.c adapters/libuv.h $(STLIBNAME)
+	$(CC) -o examples/$@ $(REAL_CFLAGS) $(REAL_LDFLAGS) -I. -I$(LIBUV_DIR)/include $< $(LIBUV_DIR)/.libs/libuv.a -lpthread -lrt $(STLIBNAME)
+endif
+
+ifeq ($(and $(QT_MOC),$(QT_INCLUDE_DIR),$(QT_LIBRARY_DIR)),)
+hiredis-example-qt:
+	@echo "Please specify QT_MOC, QT_INCLUDE_DIR AND QT_LIBRARY_DIR"
+	@false
+else
+hiredis-example-qt: examples/example-qt.cpp adapters/qt.h $(STLIBNAME)
+	$(QT_MOC) adapters/qt.h -I. -I$(QT_INCLUDE_DIR) -I$(QT_INCLUDE_DIR)/QtCore | \
+	    $(CXX) -x c++ -o qt-adapter-moc.o -c - $(REAL_CFLAGS) -I. -I$(QT_INCLUDE_DIR) -I$(QT_INCLUDE_DIR)/QtCore
+	$(QT_MOC) examples/example-qt.h -I. -I$(QT_INCLUDE_DIR) -I$(QT_INCLUDE_DIR)/QtCore | \
+	    $(CXX) -x c++ -o qt-example-moc.o -c - $(REAL_CFLAGS) -I. -I$(QT_INCLUDE_DIR) -I$(QT_INCLUDE_DIR)/QtCore
+	$(CXX) -o examples/$@ $(REAL_CFLAGS) $(REAL_LDFLAGS) -I. -I$(QT_INCLUDE_DIR) -I$(QT_INCLUDE_DIR)/QtCore -L$(QT_LIBRARY_DIR) qt-adapter-moc.o qt-example-moc.o $< -pthread $(STLIBNAME) -lQtCore
+endif
+
+hiredis-example: examples/example.c $(STLIBNAME)
+	$(CC) -o examples/$@ $(REAL_CFLAGS) $(REAL_LDFLAGS) -I. $< $(STLIBNAME)
+
+examples: $(EXAMPLES)
+
+hiredis-test: test.o $(STLIBNAME)
+
+hiredis-%: %.o $(STLIBNAME)
+	$(CC) $(REAL_CFLAGS) -o $@ $(REAL_LDFLAGS) $< $(STLIBNAME)
+
+test: hiredis-test
+	./hiredis-test
+
+check: hiredis-test
+	@echo "$$REDIS_TEST_CONFIG" | $(REDIS_SERVER) -
+	$(PRE) ./hiredis-test -h 127.0.0.1 -p $(REDIS_PORT) -s /tmp/hiredis-test-redis.sock || \
+			( kill `cat /tmp/hiredis-test-redis.pid` && false )
+	kill `cat /tmp/hiredis-test-redis.pid`
+
+.c.o:
+	$(CC) -std=c99 -pedantic -c $(REAL_CFLAGS) $<
+
+clean:
+	rm -rf $(DYLIBNAME) $(STLIBNAME) $(TESTS) $(PKGCONFNAME) examples/hiredis-example* *.o *.gcda *.gcno *.gcov
+
+dep:
+	$(CC) -MM *.c
+
+ifeq ($(uname_S),SunOS)
+  INSTALL?= cp -r
+endif
+
+INSTALL?= cp -a
+
+$(PKGCONFNAME): hiredis.h
+	@echo "Generating $@ for pkgconfig..."
+	@echo prefix=$(PREFIX) > $@
+	@echo exec_prefix=\$${prefix} >> $@
+	@echo libdir=$(PREFIX)/$(LIBRARY_PATH) >> $@
+	@echo includedir=$(PREFIX)/$(INCLUDE_PATH) >> $@
+	@echo >> $@
+	@echo Name: hiredis >> $@
+	@echo Description: Minimalistic C client library for Redis. >> $@
+	@echo Version: $(HIREDIS_MAJOR).$(HIREDIS_MINOR).$(HIREDIS_PATCH) >> $@
+	@echo Libs: -L\$${libdir} -lhiredis >> $@
+	@echo Cflags: -I\$${includedir} -D_FILE_OFFSET_BITS=64 >> $@
+
+install: $(DYLIBNAME) $(STLIBNAME) $(PKGCONFNAME)
+	mkdir -p $(INSTALL_INCLUDE_PATH) $(INSTALL_LIBRARY_PATH)
+	$(INSTALL) hiredis.h async.h read.h sds.h adapters $(INSTALL_INCLUDE_PATH)
+	$(INSTALL) $(DYLIBNAME) $(INSTALL_LIBRARY_PATH)/$(DYLIB_MINOR_NAME)
+	cd $(INSTALL_LIBRARY_PATH) && ln -sf $(DYLIB_MINOR_NAME) $(DYLIBNAME)
+	$(INSTALL) $(STLIBNAME) $(INSTALL_LIBRARY_PATH)
+	mkdir -p $(INSTALL_PKGCONF_PATH)
+	$(INSTALL) $(PKGCONFNAME) $(INSTALL_PKGCONF_PATH)
+
+32bit:
+	@echo ""
+	@echo "WARNING: if this fails under Linux you probably need to install libc6-dev-i386"
+	@echo ""
+	$(MAKE) CFLAGS="-m32" LDFLAGS="-m32"
+
+32bit-vars:
+	$(eval CFLAGS=-m32)
+	$(eval LDFLAGS=-m32)
+
+gprof:
+	$(MAKE) CFLAGS="-pg" LDFLAGS="-pg"
+
+gcov:
+	$(MAKE) CFLAGS="-fprofile-arcs -ftest-coverage" LDFLAGS="-fprofile-arcs"
+
+coverage: gcov
+	make check
+	mkdir -p tmp/lcov
+	lcov -d . -c -o tmp/lcov/hiredis.info
+	genhtml --legend -o tmp/lcov/report tmp/lcov/hiredis.info
+
+noopt:
+	$(MAKE) OPTIMIZATION=""
+
+.PHONY: all test check clean dep install 32bit 32bit-vars gprof gcov noopt

src/common/thirdparty/hiredis/README.md

@@ -0,0 +1,392 @@
+[![Build Status](https://travis-ci.org/redis/hiredis.png)](https://travis-ci.org/redis/hiredis)
+
+# HIREDIS
+
+Hiredis is a minimalistic C client library for the [Redis](http://redis.io/) database.
+
+It is minimalistic because it just adds minimal support for the protocol, but
+at the same time it uses a high level printf-alike API in order to make it
+much higher level than otherwise suggested by its minimal code base and the
+lack of explicit bindings for every Redis command.
+
+Apart from supporting sending commands and receiving replies, it comes with
+a reply parser that is decoupled from the I/O layer. It
+is a stream parser designed for easy reusability, which can for instance be used
+in higher level language bindings for efficient reply parsing.
+
+Hiredis only supports the binary-safe Redis protocol, so you can use it with any
+Redis version >= 1.2.0.
+
+The library comes with multiple APIs. There is the
+*synchronous API*, the *asynchronous API* and the *reply parsing API*.
+
+## UPGRADING
+
+Version 0.9.0 is a major overhaul of hiredis in every aspect. However, upgrading existing
+code using hiredis should not be a big pain. The key thing to keep in mind when
+upgrading is that hiredis >= 0.9.0 uses a `redisContext*` to keep state, in contrast to
+the stateless 0.0.1 that only has a file descriptor to work with.
+
+## Synchronous API
+
+To consume the synchronous API, there are only a few function calls that need to be introduced:
+
+```c
+redisContext *redisConnect(const char *ip, int port);
+void *redisCommand(redisContext *c, const char *format, ...);
+void freeReplyObject(void *reply);
+```
+
+### Connecting
+
+The function `redisConnect` is used to create a so-called `redisContext`. The
+context is where Hiredis holds state for a connection. The `redisContext`
+struct has an integer `err` field that is non-zero when the connection is in
+an error state. The field `errstr` will contain a string with a description of
+the error. More information on errors can be found in the **Errors** section.
+After trying to connect to Redis using `redisConnect` you should
+check the `err` field to see if establishing the connection was successful:
+```c
+redisContext *c = redisConnect("127.0.0.1", 6379);
+if (c != NULL && c->err) {
+    printf("Error: %s\n", c->errstr);
+    // handle error
+}
+```
+
+### Sending commands
+
+There are several ways to issue commands to Redis. The first that will be introduced is
+`redisCommand`. This function takes a format similar to printf. In the simplest form,
+it is used like this:
+```c
+reply = redisCommand(context, "SET foo bar");
+```
+
+The specifier `%s` interpolates a string in the command, and uses `strlen` to
+determine the length of the string:
+```c
+reply = redisCommand(context, "SET foo %s", value);
+```
+When you need to pass binary safe strings in a command, the `%b` specifier can be
+used. Together with a pointer to the string, it requires a `size_t` length argument
+of the string:
+```c
+reply = redisCommand(context, "SET foo %b", value, (size_t) valuelen);
+```
+Internally, Hiredis splits the command in different arguments and will
+convert it to the protocol used to communicate with Redis.
+One or more spaces separates arguments, so you can use the specifiers
+anywhere in an argument:
+```c
+reply = redisCommand(context, "SET key:%s %s", myid, value);
+```
+
+### Using replies
+
+The return value of `redisCommand` holds a reply when the command was
+successfully executed. When an error occurs, the return value is `NULL` and
+the `err` field in the context will be set (see section on **Errors**).
+Once an error is returned the context cannot be reused and you should set up
+a new connection.
+
+The standard replies that `redisCommand` are of the type `redisReply`. The
+`type` field in the `redisReply` should be used to test what kind of reply
+was received:
+
+* **`REDIS_REPLY_STATUS`**:
+    * The command replied with a status reply. The status string can be accessed using `reply->str`.
+      The length of this string can be accessed using `reply->len`.
+
+* **`REDIS_REPLY_ERROR`**:
+    *  The command replied with an error. The error string can be accessed identical to `REDIS_REPLY_STATUS`.
+
+* **`REDIS_REPLY_INTEGER`**:
+    * The command replied with an integer. The integer value can be accessed using the
+      `reply->integer` field of type `long long`.
+
+* **`REDIS_REPLY_NIL`**:
+    * The command replied with a **nil** object. There is no data to access.
+
+* **`REDIS_REPLY_STRING`**:
+    * A bulk (string) reply. The value of the reply can be accessed using `reply->str`.
+      The length of this string can be accessed using `reply->len`.
+
+* **`REDIS_REPLY_ARRAY`**:
+    * A multi bulk reply. The number of elements in the multi bulk reply is stored in
+      `reply->elements`. Every element in the multi bulk reply is a `redisReply` object as well
+      and can be accessed via `reply->element[..index..]`.
+      Redis may reply with nested arrays but this is fully supported.
+
+Replies should be freed using the `freeReplyObject()` function.
+Note that this function will take care of freeing sub-reply objects
+contained in arrays and nested arrays, so there is no need for the user to
+free the sub replies (it is actually harmful and will corrupt the memory).
+
+**Important:** the current version of hiredis (0.10.0) frees replies when the
+asynchronous API is used. This means you should not call `freeReplyObject` when
+you use this API. The reply is cleaned up by hiredis _after_ the callback
+returns. This behavior will probably change in future releases, so make sure to
+keep an eye on the changelog when upgrading (see issue #39).
+
+### Cleaning up
+
+To disconnect and free the context the following function can be used:
+```c
+void redisFree(redisContext *c);
+```
+This function immediately closes the socket and then frees the allocations done in
+creating the context.
+
+### Sending commands (cont'd)
+
+Together with `redisCommand`, the function `redisCommandArgv` can be used to issue commands.
+It has the following prototype:
+```c
+void *redisCommandArgv(redisContext *c, int argc, const char **argv, const size_t *argvlen);
+```
+It takes the number of arguments `argc`, an array of strings `argv` and the lengths of the
+arguments `argvlen`. For convenience, `argvlen` may be set to `NULL` and the function will
+use `strlen(3)` on every argument to determine its length. Obviously, when any of the arguments
+need to be binary safe, the entire array of lengths `argvlen` should be provided.
+
+The return value has the same semantic as `redisCommand`.
+
+### Pipelining
+
+To explain how Hiredis supports pipelining in a blocking connection, there needs to be
+understanding of the internal execution flow.
+
+When any of the functions in the `redisCommand` family is called, Hiredis first formats the
+command according to the Redis protocol. The formatted command is then put in the output buffer
+of the context. This output buffer is dynamic, so it can hold any number of commands.
+After the command is put in the output buffer, `redisGetReply` is called. This function has the
+following two execution paths:
+
+1. The input buffer is non-empty:
+    * Try to parse a single reply from the input buffer and return it
+    * If no reply could be parsed, continue at *2*
+2. The input buffer is empty:
+    * Write the **entire** output buffer to the socket
+    * Read from the socket until a single reply could be parsed
+
+The function `redisGetReply` is exported as part of the Hiredis API and can be used when a reply
+is expected on the socket. To pipeline commands, the only things that needs to be done is
+filling up the output buffer. For this cause, two commands can be used that are identical
+to the `redisCommand` family, apart from not returning a reply:
+```c
+void redisAppendCommand(redisContext *c, const char *format, ...);
+void redisAppendCommandArgv(redisContext *c, int argc, const char **argv, const size_t *argvlen);
+```
+After calling either function one or more times, `redisGetReply` can be used to receive the
+subsequent replies. The return value for this function is either `REDIS_OK` or `REDIS_ERR`, where
+the latter means an error occurred while reading a reply. Just as with the other commands,
+the `err` field in the context can be used to find out what the cause of this error is.
+
+The following examples shows a simple pipeline (resulting in only a single call to `write(2)` and
+a single call to `read(2)`):
+```c
+redisReply *reply;
+redisAppendCommand(context,"SET foo bar");
+redisAppendCommand(context,"GET foo");
+redisGetReply(context,&reply); // reply for SET
+freeReplyObject(reply);
+redisGetReply(context,&reply); // reply for GET
+freeReplyObject(reply);
+```
+This API can also be used to implement a blocking subscriber:
+```c
+reply = redisCommand(context,"SUBSCRIBE foo");
+freeReplyObject(reply);
+while(redisGetReply(context,&reply) == REDIS_OK) {
+    // consume message
+    freeReplyObject(reply);
+}
+```
+### Errors
+
+When a function call is not successful, depending on the function either `NULL` or `REDIS_ERR` is
+returned. The `err` field inside the context will be non-zero and set to one of the
+following constants:
+
+* **`REDIS_ERR_IO`**:
+    There was an I/O error while creating the connection, trying to write
+    to the socket or read from the socket. If you included `errno.h` in your
+    application, you can use the global `errno` variable to find out what is
+    wrong.
+
+* **`REDIS_ERR_EOF`**:
+    The server closed the connection which resulted in an empty read.
+
+* **`REDIS_ERR_PROTOCOL`**:
+    There was an error while parsing the protocol.
+
+* **`REDIS_ERR_OTHER`**:
+    Any other error. Currently, it is only used when a specified hostname to connect
+    to cannot be resolved.
+
+In every case, the `errstr` field in the context will be set to hold a string representation
+of the error.
+
+## Asynchronous API
+
+Hiredis comes with an asynchronous API that works easily with any event library.
+Examples are bundled that show using Hiredis with [libev](http://software.schmorp.de/pkg/libev.html)
+and [libevent](http://monkey.org/~provos/libevent/).
+
+### Connecting
+
+The function `redisAsyncConnect` can be used to establish a non-blocking connection to
+Redis. It returns a pointer to the newly created `redisAsyncContext` struct. The `err` field
+should be checked after creation to see if there were errors creating the connection.
+Because the connection that will be created is non-blocking, the kernel is not able to
+instantly return if the specified host and port is able to accept a connection.
+```c
+redisAsyncContext *c = redisAsyncConnect("127.0.0.1", 6379);
+if (c->err) {
+    printf("Error: %s\n", c->errstr);
+    // handle error
+}
+```
+
+The asynchronous context can hold a disconnect callback function that is called when the
+connection is disconnected (either because of an error or per user request). This function should
+have the following prototype:
+```c
+void(const redisAsyncContext *c, int status);
+```
+On a disconnect, the `status` argument is set to `REDIS_OK` when disconnection was initiated by the
+user, or `REDIS_ERR` when the disconnection was caused by an error. When it is `REDIS_ERR`, the `err`
+field in the context can be accessed to find out the cause of the error.
+
+The context object is always freed after the disconnect callback fired. When a reconnect is needed,
+the disconnect callback is a good point to do so.
+
+Setting the disconnect callback can only be done once per context. For subsequent calls it will
+return `REDIS_ERR`. The function to set the disconnect callback has the following prototype:
+```c
+int redisAsyncSetDisconnectCallback(redisAsyncContext *ac, redisDisconnectCallback *fn);
+```
+### Sending commands and their callbacks
+
+In an asynchronous context, commands are automatically pipelined due to the nature of an event loop.
+Therefore, unlike the synchronous API, there is only a single way to send commands.
+Because commands are sent to Redis asynchronously, issuing a command requires a callback function
+that is called when the reply is received. Reply callbacks should have the following prototype:
+```c
+void(redisAsyncContext *c, void *reply, void *privdata);
+```
+The `privdata` argument can be used to curry arbitrary data to the callback from the point where
+the command is initially queued for execution.
+
+The functions that can be used to issue commands in an asynchronous context are:
+```c
+int redisAsyncCommand(
+  redisAsyncContext *ac, redisCallbackFn *fn, void *privdata,
+  const char *format, ...);
+int redisAsyncCommandArgv(
+  redisAsyncContext *ac, redisCallbackFn *fn, void *privdata,
+  int argc, const char **argv, const size_t *argvlen);
+```
+Both functions work like their blocking counterparts. The return value is `REDIS_OK` when the command
+was successfully added to the output buffer and `REDIS_ERR` otherwise. Example: when the connection
+is being disconnected per user-request, no new commands may be added to the output buffer and `REDIS_ERR` is
+returned on calls to the `redisAsyncCommand` family.
+
+If the reply for a command with a `NULL` callback is read, it is immediately freed. When the callback
+for a command is non-`NULL`, the memory is freed immediately following the callback: the reply is only
+valid for the duration of the callback.
+
+All pending callbacks are called with a `NULL` reply when the context encountered an error.
+
+### Disconnecting
+
+An asynchronous connection can be terminated using:
+```c
+void redisAsyncDisconnect(redisAsyncContext *ac);
+```
+When this function is called, the connection is **not** immediately terminated. Instead, new
+commands are no longer accepted and the connection is only terminated when all pending commands
+have been written to the socket, their respective replies have been read and their respective
+callbacks have been executed. After this, the disconnection callback is executed with the
+`REDIS_OK` status and the context object is freed.
+
+### Hooking it up to event library *X*
+
+There are a few hooks that need to be set on the context object after it is created.
+See the `adapters/` directory for bindings to *libev* and *libevent*.
+
+## Reply parsing API
+
+Hiredis comes with a reply parsing API that makes it easy for writing higher
+level language bindings.
+
+The reply parsing API consists of the following functions:
+```c
+redisReader *redisReaderCreate(void);
+void redisReaderFree(redisReader *reader);
+int redisReaderFeed(redisReader *reader, const char *buf, size_t len);
+int redisReaderGetReply(redisReader *reader, void **reply);
+```
+The same set of functions are used internally by hiredis when creating a
+normal Redis context, the above API just exposes it to the user for a direct
+usage.
+
+### Usage
+
+The function `redisReaderCreate` creates a `redisReader` structure that holds a
+buffer with unparsed data and state for the protocol parser.
+
+Incoming data -- most likely from a socket -- can be placed in the internal
+buffer of the `redisReader` using `redisReaderFeed`. This function will make a
+copy of the buffer pointed to by `buf` for `len` bytes. This data is parsed
+when `redisReaderGetReply` is called. This function returns an integer status
+and a reply object (as described above) via `void **reply`. The returned status
+can be either `REDIS_OK` or `REDIS_ERR`, where the latter means something went
+wrong (either a protocol error, or an out of memory error).
+
+The parser limits the level of nesting for multi bulk payloads to 7. If the
+multi bulk nesting level is higher than this, the parser returns an error.
+
+### Customizing replies
+
+The function `redisReaderGetReply` creates `redisReply` and makes the function
+argument `reply` point to the created `redisReply` variable. For instance, if
+the response of type `REDIS_REPLY_STATUS` then the `str` field of `redisReply`
+will hold the status as a vanilla C string. However, the functions that are
+responsible for creating instances of the `redisReply` can be customized by
+setting the `fn` field on the `redisReader` struct. This should be done
+immediately after creating the `redisReader`.
+
+For example, [hiredis-rb](https://github.com/pietern/hiredis-rb/blob/master/ext/hiredis_ext/reader.c)
+uses customized reply object functions to create Ruby objects.
+
+### Reader max buffer
+
+Both when using the Reader API directly or when using it indirectly via a
+normal Redis context, the redisReader structure uses a buffer in order to
+accumulate data from the server.
+Usually this buffer is destroyed when it is empty and is larger than 16
+KiB in order to avoid wasting memory in unused buffers
+
+However when working with very big payloads destroying the buffer may slow
+down performances considerably, so it is possible to modify the max size of
+an idle buffer changing the value of the `maxbuf` field of the reader structure
+to the desired value. The special value of 0 means that there is no maximum
+value for an idle buffer, so the buffer will never get freed.
+
+For instance if you have a normal Redis context you can set the maximum idle
+buffer to zero (unlimited) just with:
+```c
+context->reader->maxbuf = 0;
+```
+This should be done only in order to maximize performances when working with
+large payloads. The context should be set back to `REDIS_READER_MAX_BUF` again
+as soon as possible in order to prevent allocation of useless memory.
+
+## AUTHORS
+
+Hiredis was written by Salvatore Sanfilippo (antirez at gmail) and
+Pieter Noordhuis (pcnoordhuis at gmail) and is released under the BSD license.  
+Hiredis is currently maintained by Matt Stancliff (matt at genges dot com) and
+Jan-Erik Rediger (janerik at fnordig dot com)

src/common/thirdparty/hiredis/adapters/ae.h

@@ -0,0 +1,127 @@
+/*
+ * Copyright (c) 2010-2011, Pieter Noordhuis <pcnoordhuis at gmail dot com>
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *   * Neither the name of Redis nor the names of its contributors may be used
+ *     to endorse or promote products derived from this software without
+ *     specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __HIREDIS_AE_H__
+#define __HIREDIS_AE_H__
+#include <sys/types.h>
+#include <ae.h>
+#include "../hiredis.h"
+#include "../async.h"
+
+typedef struct redisAeEvents {
+    redisAsyncContext *context;
+    aeEventLoop *loop;
+    int fd;
+    int reading, writing;
+} redisAeEvents;
+
+static void redisAeReadEvent(aeEventLoop *el, int fd, void *privdata, int mask) {
+    ((void)el); ((void)fd); ((void)mask);
+
+    redisAeEvents *e = (redisAeEvents*)privdata;
+    redisAsyncHandleRead(e->context);
+}
+
+static void redisAeWriteEvent(aeEventLoop *el, int fd, void *privdata, int mask) {
+    ((void)el); ((void)fd); ((void)mask);
+
+    redisAeEvents *e = (redisAeEvents*)privdata;
+    redisAsyncHandleWrite(e->context);
+}
+
+static void redisAeAddRead(void *privdata) {
+    redisAeEvents *e = (redisAeEvents*)privdata;
+    aeEventLoop *loop = e->loop;
+    if (!e->reading) {
+        e->reading = 1;
+        aeCreateFileEvent(loop,e->fd,AE_READABLE,redisAeReadEvent,e);
+    }
+}
+
+static void redisAeDelRead(void *privdata) {
+    redisAeEvents *e = (redisAeEvents*)privdata;
+    aeEventLoop *loop = e->loop;
+    if (e->reading) {
+        e->reading = 0;
+        aeDeleteFileEvent(loop,e->fd,AE_READABLE);
+    }
+}
+
+static void redisAeAddWrite(void *privdata) {
+    redisAeEvents *e = (redisAeEvents*)privdata;
+    aeEventLoop *loop = e->loop;
+    if (!e->writing) {
+        e->writing = 1;
+        aeCreateFileEvent(loop,e->fd,AE_WRITABLE,redisAeWriteEvent,e);
+    }
+}
+
+static void redisAeDelWrite(void *privdata) {
+    redisAeEvents *e = (redisAeEvents*)privdata;
+    aeEventLoop *loop = e->loop;
+    if (e->writing) {
+        e->writing = 0;
+        aeDeleteFileEvent(loop,e->fd,AE_WRITABLE);
+    }
+}
+
+static void redisAeCleanup(void *privdata) {
+    redisAeEvents *e = (redisAeEvents*)privdata;
+    redisAeDelRead(privdata);
+    redisAeDelWrite(privdata);
+    free(e);
+}
+
+static int redisAeAttach(aeEventLoop *loop, redisAsyncContext *ac) {
+    redisContext *c = &(ac->c);
+    redisAeEvents *e;
+
+    /* Nothing should be attached when something is already attached */
+    if (ac->ev.data != NULL)
+        return REDIS_ERR;
+
+    /* Create container for context and r/w events */
+    e = (redisAeEvents*)malloc(sizeof(*e));
+    e->context = ac;
+    e->loop = loop;
+    e->fd = c->fd;
+    e->reading = e->writing = 0;
+
+    /* Register functions to start/stop listening for events */
+    ac->ev.addRead = redisAeAddRead;
+    ac->ev.delRead = redisAeDelRead;
+    ac->ev.addWrite = redisAeAddWrite;
+    ac->ev.delWrite = redisAeDelWrite;
+    ac->ev.cleanup = redisAeCleanup;
+    ac->ev.data = e;
+
+    return REDIS_OK;
+}
+#endif

src/common/thirdparty/hiredis/adapters/glib.h

@@ -0,0 +1,153 @@
+#ifndef __HIREDIS_GLIB_H__
+#define __HIREDIS_GLIB_H__
+
+#include <glib.h>
+
+#include "../hiredis.h"
+#include "../async.h"
+
+typedef struct
+{
+    GSource source;
+    redisAsyncContext *ac;
+    GPollFD poll_fd;
+} RedisSource;
+
+static void
+redis_source_add_read (gpointer data)
+{
+    RedisSource *source = (RedisSource *)data;
+    g_return_if_fail(source);
+    source->poll_fd.events |= G_IO_IN;
+    g_main_context_wakeup(g_source_get_context((GSource *)data));
+}
+
+static void
+redis_source_del_read (gpointer data)
+{
+    RedisSource *source = (RedisSource *)data;
+    g_return_if_fail(source);
+    source->poll_fd.events &= ~G_IO_IN;
+    g_main_context_wakeup(g_source_get_context((GSource *)data));
+}
+
+static void
+redis_source_add_write (gpointer data)
+{
+    RedisSource *source = (RedisSource *)data;
+    g_return_if_fail(source);
+    source->poll_fd.events |= G_IO_OUT;
+    g_main_context_wakeup(g_source_get_context((GSource *)data));
+}
+
+static void
+redis_source_del_write (gpointer data)
+{
+    RedisSource *source = (RedisSource *)data;
+    g_return_if_fail(source);
+    source->poll_fd.events &= ~G_IO_OUT;
+    g_main_context_wakeup(g_source_get_context((GSource *)data));
+}
+
+static void
+redis_source_cleanup (gpointer data)
+{
+    RedisSource *source = (RedisSource *)data;
+
+    g_return_if_fail(source);
+
+    redis_source_del_read(source);
+    redis_source_del_write(source);
+    /*
+     * It is not our responsibility to remove ourself from the
+     * current main loop. However, we will remove the GPollFD.
+     */
+    if (source->poll_fd.fd >= 0) {
+        g_source_remove_poll((GSource *)data, &source->poll_fd);
+        source->poll_fd.fd = -1;
+    }
+}
+
+static gboolean
+redis_source_prepare (GSource *source,
+                      gint    *timeout_)
+{
+    RedisSource *redis = (RedisSource *)source;
+    *timeout_ = -1;
+    return !!(redis->poll_fd.events & redis->poll_fd.revents);
+}
+
+static gboolean
+redis_source_check (GSource *source)
+{
+    RedisSource *redis = (RedisSource *)source;
+    return !!(redis->poll_fd.events & redis->poll_fd.revents);
+}
+
+static gboolean
+redis_source_dispatch (GSource      *source,
+                       GSourceFunc   callback,
+                       gpointer      user_data)
+{
+    RedisSource *redis = (RedisSource *)source;
+
+    if ((redis->poll_fd.revents & G_IO_OUT)) {
+        redisAsyncHandleWrite(redis->ac);
+        redis->poll_fd.revents &= ~G_IO_OUT;
+    }
+
+    if ((redis->poll_fd.revents & G_IO_IN)) {
+        redisAsyncHandleRead(redis->ac);
+        redis->poll_fd.revents &= ~G_IO_IN;
+    }
+
+    if (callback) {
+        return callback(user_data);
+    }
+
+    return TRUE;
+}
+
+static void
+redis_source_finalize (GSource *source)
+{
+    RedisSource *redis = (RedisSource *)source;
+
+    if (redis->poll_fd.fd >= 0) {
+        g_source_remove_poll(source, &redis->poll_fd);
+        redis->poll_fd.fd = -1;
+    }
+}
+
+static GSource *
+redis_source_new (redisAsyncContext *ac)
+{
+    static GSourceFuncs source_funcs = {
+        .prepare  = redis_source_prepare,
+        .check     = redis_source_check,
+        .dispatch = redis_source_dispatch,
+        .finalize = redis_source_finalize,
+    };
+    redisContext *c = &ac->c;
+    RedisSource *source;
+
+    g_return_val_if_fail(ac != NULL, NULL);
+
+    source = (RedisSource *)g_source_new(&source_funcs, sizeof *source);
+    source->ac = ac;
+    source->poll_fd.fd = c->fd;
+    source->poll_fd.events = 0;
+    source->poll_fd.revents = 0;
+    g_source_add_poll((GSource *)source, &source->poll_fd);
+
+    ac->ev.addRead = redis_source_add_read;
+    ac->ev.delRead = redis_source_del_read;
+    ac->ev.addWrite = redis_source_add_write;
+    ac->ev.delWrite = redis_source_del_write;
+    ac->ev.cleanup = redis_source_cleanup;
+    ac->ev.data = source;
+
+    return (GSource *)source;
+}
+
+#endif /* __HIREDIS_GLIB_H__ */

src/common/thirdparty/hiredis/adapters/ivykis.h

@@ -0,0 +1,81 @@
+#ifndef __HIREDIS_IVYKIS_H__
+#define __HIREDIS_IVYKIS_H__
+#include <iv.h>
+#include "../hiredis.h"
+#include "../async.h"
+
+typedef struct redisIvykisEvents {
+    redisAsyncContext *context;
+    struct iv_fd fd;
+} redisIvykisEvents;
+
+static void redisIvykisReadEvent(void *arg) {
+    redisAsyncContext *context = (redisAsyncContext *)arg;
+    redisAsyncHandleRead(context);
+}
+
+static void redisIvykisWriteEvent(void *arg) {
+    redisAsyncContext *context = (redisAsyncContext *)arg;
+    redisAsyncHandleWrite(context);
+}
+
+static void redisIvykisAddRead(void *privdata) {
+    redisIvykisEvents *e = (redisIvykisEvents*)privdata;
+    iv_fd_set_handler_in(&e->fd, redisIvykisReadEvent);
+}
+
+static void redisIvykisDelRead(void *privdata) {
+    redisIvykisEvents *e = (redisIvykisEvents*)privdata;
+    iv_fd_set_handler_in(&e->fd, NULL);
+}
+
+static void redisIvykisAddWrite(void *privdata) {
+    redisIvykisEvents *e = (redisIvykisEvents*)privdata;
+    iv_fd_set_handler_out(&e->fd, redisIvykisWriteEvent);
+}
+
+static void redisIvykisDelWrite(void *privdata) {
+    redisIvykisEvents *e = (redisIvykisEvents*)privdata;
+    iv_fd_set_handler_out(&e->fd, NULL);
+}
+
+static void redisIvykisCleanup(void *privdata) {
+    redisIvykisEvents *e = (redisIvykisEvents*)privdata;
+
+    iv_fd_unregister(&e->fd);
+    free(e);
+}
+
+static int redisIvykisAttach(redisAsyncContext *ac) {
+    redisContext *c = &(ac->c);
+    redisIvykisEvents *e;
+
+    /* Nothing should be attached when something is already attached */
+    if (ac->ev.data != NULL)
+        return REDIS_ERR;
+
+    /* Create container for context and r/w events */
+    e = (redisIvykisEvents*)malloc(sizeof(*e));
+    e->context = ac;
+
+    /* Register functions to start/stop listening for events */
+    ac->ev.addRead = redisIvykisAddRead;
+    ac->ev.delRead = redisIvykisDelRead;
+    ac->ev.addWrite = redisIvykisAddWrite;
+    ac->ev.delWrite = redisIvykisDelWrite;
+    ac->ev.cleanup = redisIvykisCleanup;
+    ac->ev.data = e;
+
+    /* Initialize and install read/write events */
+    IV_FD_INIT(&e->fd);
+    e->fd.fd = c->fd;
+    e->fd.handler_in = redisIvykisReadEvent;
+    e->fd.handler_out = redisIvykisWriteEvent;
+    e->fd.handler_err = NULL;
+    e->fd.cookie = e->context;
+
+    iv_fd_register(&e->fd);
+
+    return REDIS_OK;
+}
+#endif

src/common/thirdparty/hiredis/adapters/libev.h

@@ -0,0 +1,147 @@
+/*
+ * Copyright (c) 2010-2011, Pieter Noordhuis <pcnoordhuis at gmail dot com>
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *   * Neither the name of Redis nor the names of its contributors may be used
+ *     to endorse or promote products derived from this software without
+ *     specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __HIREDIS_LIBEV_H__
+#define __HIREDIS_LIBEV_H__
+#include <stdlib.h>
+#include <sys/types.h>
+#include <ev.h>
+#include "../hiredis.h"
+#include "../async.h"
+
+typedef struct redisLibevEvents {
+    redisAsyncContext *context;
+    struct ev_loop *loop;
+    int reading, writing;
+    ev_io rev, wev;
+} redisLibevEvents;
+
+static void redisLibevReadEvent(EV_P_ ev_io *watcher, int revents) {
+#if EV_MULTIPLICITY
+    ((void)loop);
+#endif
+    ((void)revents);
+
+    redisLibevEvents *e = (redisLibevEvents*)watcher->data;
+    redisAsyncHandleRead(e->context);
+}
+
+static void redisLibevWriteEvent(EV_P_ ev_io *watcher, int revents) {
+#if EV_MULTIPLICITY
+    ((void)loop);
+#endif
+    ((void)revents);
+
+    redisLibevEvents *e = (redisLibevEvents*)watcher->data;
+    redisAsyncHandleWrite(e->context);
+}
+
+static void redisLibevAddRead(void *privdata) {
+    redisLibevEvents *e = (redisLibevEvents*)privdata;
+    struct ev_loop *loop = e->loop;
+    ((void)loop);
+    if (!e->reading) {
+        e->reading = 1;
+        ev_io_start(EV_A_ &e->rev);
+    }
+}
+
+static void redisLibevDelRead(void *privdata) {
+    redisLibevEvents *e = (redisLibevEvents*)privdata;
+    struct ev_loop *loop = e->loop;
+    ((void)loop);
+    if (e->reading) {
+        e->reading = 0;
+        ev_io_stop(EV_A_ &e->rev);
+    }
+}
+
+static void redisLibevAddWrite(void *privdata) {
+    redisLibevEvents *e = (redisLibevEvents*)privdata;
+    struct ev_loop *loop = e->loop;
+    ((void)loop);
+    if (!e->writing) {
+        e->writing = 1;
+        ev_io_start(EV_A_ &e->wev);
+    }
+}
+
+static void redisLibevDelWrite(void *privdata) {
+    redisLibevEvents *e = (redisLibevEvents*)privdata;
+    struct ev_loop *loop = e->loop;
+    ((void)loop);
+    if (e->writing) {
+        e->writing = 0;
+        ev_io_stop(EV_A_ &e->wev);
+    }
+}
+
+static void redisLibevCleanup(void *privdata) {
+    redisLibevEvents *e = (redisLibevEvents*)privdata;
+    redisLibevDelRead(privdata);
+    redisLibevDelWrite(privdata);
+    free(e);
+}
+
+static int redisLibevAttach(EV_P_ redisAsyncContext *ac) {
+    redisContext *c = &(ac->c);
+    redisLibevEvents *e;
+
+    /* Nothing should be attached when something is already attached */
+    if (ac->ev.data != NULL)
+        return REDIS_ERR;
+
+    /* Create container for context and r/w events */
+    e = (redisLibevEvents*)malloc(sizeof(*e));
+    e->context = ac;
+#if EV_MULTIPLICITY
+    e->loop = loop;
+#else
+    e->loop = NULL;
+#endif
+    e->reading = e->writing = 0;
+    e->rev.data = e;
+    e->wev.data = e;
+
+    /* Register functions to start/stop listening for events */
+    ac->ev.addRead = redisLibevAddRead;
+    ac->ev.delRead = redisLibevDelRead;
+    ac->ev.addWrite = redisLibevAddWrite;
+    ac->ev.delWrite = redisLibevDelWrite;
+    ac->ev.cleanup = redisLibevCleanup;
+    ac->ev.data = e;
+
+    /* Initialize read/write events */
+    ev_io_init(&e->rev,redisLibevReadEvent,c->fd,EV_READ);
+    ev_io_init(&e->wev,redisLibevWriteEvent,c->fd,EV_WRITE);
+    return REDIS_OK;
+}
+
+#endif

src/common/thirdparty/hiredis/adapters/libevent.h

@@ -0,0 +1,108 @@
+/*
+ * Copyright (c) 2010-2011, Pieter Noordhuis <pcnoordhuis at gmail dot com>
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *   * Neither the name of Redis nor the names of its contributors may be used
+ *     to endorse or promote products derived from this software without
+ *     specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __HIREDIS_LIBEVENT_H__
+#define __HIREDIS_LIBEVENT_H__
+#include <event.h>
+#include "../hiredis.h"
+#include "../async.h"
+
+typedef struct redisLibeventEvents {
+    redisAsyncContext *context;
+    struct event rev, wev;
+} redisLibeventEvents;
+
+static void redisLibeventReadEvent(int fd, short event, void *arg) {
+    ((void)fd); ((void)event);
+    redisLibeventEvents *e = (redisLibeventEvents*)arg;
+    redisAsyncHandleRead(e->context);
+}
+
+static void redisLibeventWriteEvent(int fd, short event, void *arg) {
+    ((void)fd); ((void)event);
+    redisLibeventEvents *e = (redisLibeventEvents*)arg;
+    redisAsyncHandleWrite(e->context);
+}
+
+static void redisLibeventAddRead(void *privdata) {
+    redisLibeventEvents *e = (redisLibeventEvents*)privdata;
+    event_add(&e->rev,NULL);
+}
+
+static void redisLibeventDelRead(void *privdata) {
+    redisLibeventEvents *e = (redisLibeventEvents*)privdata;
+    event_del(&e->rev);
+}
+
+static void redisLibeventAddWrite(void *privdata) {
+    redisLibeventEvents *e = (redisLibeventEvents*)privdata;
+    event_add(&e->wev,NULL);
+}
+
+static void redisLibeventDelWrite(void *privdata) {
+    redisLibeventEvents *e = (redisLibeventEvents*)privdata;
+    event_del(&e->wev);
+}
+
+static void redisLibeventCleanup(void *privdata) {
+    redisLibeventEvents *e = (redisLibeventEvents*)privdata;
+    event_del(&e->rev);
+    event_del(&e->wev);
+    free(e);
+}
+
+static int redisLibeventAttach(redisAsyncContext *ac, struct event_base *base) {
+    redisContext *c = &(ac->c);
+    redisLibeventEvents *e;
+
+    /* Nothing should be attached when something is already attached */
+    if (ac->ev.data != NULL)
+        return REDIS_ERR;
+
+    /* Create container for context and r/w events */
+    e = (redisLibeventEvents*)malloc(sizeof(*e));
+    e->context = ac;
+
+    /* Register functions to start/stop listening for events */
+    ac->ev.addRead = redisLibeventAddRead;
+    ac->ev.delRead = redisLibeventDelRead;
+    ac->ev.addWrite = redisLibeventAddWrite;
+    ac->ev.delWrite = redisLibeventDelWrite;
+    ac->ev.cleanup = redisLibeventCleanup;
+    ac->ev.data = e;
+
+    /* Initialize and install read/write events */
+    event_set(&e->rev,c->fd,EV_READ,redisLibeventReadEvent,e);
+    event_set(&e->wev,c->fd,EV_WRITE,redisLibeventWriteEvent,e);
+    event_base_set(base,&e->rev);
+    event_base_set(base,&e->wev);
+    return REDIS_OK;
+}
+#endif

src/common/thirdparty/hiredis/adapters/libuv.h

@@ -0,0 +1,121 @@
+#ifndef __HIREDIS_LIBUV_H__
+#define __HIREDIS_LIBUV_H__
+#include <stdlib.h>
+#include <uv.h>
+#include "../hiredis.h"
+#include "../async.h"
+#include <string.h>
+
+typedef struct redisLibuvEvents {
+  redisAsyncContext* context;
+  uv_poll_t          handle;
+  int                events;
+} redisLibuvEvents;
+
+
+static void redisLibuvPoll(uv_poll_t* handle, int status, int events) {
+  redisLibuvEvents* p = (redisLibuvEvents*)handle->data;
+
+  if (status != 0) {
+    return;
+  }
+
+  if (events & UV_READABLE) {
+    redisAsyncHandleRead(p->context);
+  }
+  if (events & UV_WRITABLE) {
+    redisAsyncHandleWrite(p->context);
+  }
+}
+
+
+static void redisLibuvAddRead(void *privdata) {
+  redisLibuvEvents* p = (redisLibuvEvents*)privdata;
+
+  p->events |= UV_READABLE;
+
+  uv_poll_start(&p->handle, p->events, redisLibuvPoll);
+}
+
+
+static void redisLibuvDelRead(void *privdata) {
+  redisLibuvEvents* p = (redisLibuvEvents*)privdata;
+
+  p->events &= ~UV_READABLE;
+
+  if (p->events) {
+    uv_poll_start(&p->handle, p->events, redisLibuvPoll);
+  } else {
+    uv_poll_stop(&p->handle);
+  }
+}
+
+
+static void redisLibuvAddWrite(void *privdata) {
+  redisLibuvEvents* p = (redisLibuvEvents*)privdata;
+
+  p->events |= UV_WRITABLE;
+
+  uv_poll_start(&p->handle, p->events, redisLibuvPoll);
+}
+
+
+static void redisLibuvDelWrite(void *privdata) {
+  redisLibuvEvents* p = (redisLibuvEvents*)privdata;
+
+  p->events &= ~UV_WRITABLE;
+
+  if (p->events) {
+    uv_poll_start(&p->handle, p->events, redisLibuvPoll);
+  } else {
+    uv_poll_stop(&p->handle);
+  }
+}
+
+
+static void on_close(uv_handle_t* handle) {
+  redisLibuvEvents* p = (redisLibuvEvents*)handle->data;
+
+  free(p);
+}
+
+
+static void redisLibuvCleanup(void *privdata) {
+  redisLibuvEvents* p = (redisLibuvEvents*)privdata;
+
+  uv_close((uv_handle_t*)&p->handle, on_close);
+}
+
+
+static int redisLibuvAttach(redisAsyncContext* ac, uv_loop_t* loop) {
+  redisContext *c = &(ac->c);
+
+  if (ac->ev.data != NULL) {
+    return REDIS_ERR;
+  }
+
+  ac->ev.addRead  = redisLibuvAddRead;
+  ac->ev.delRead  = redisLibuvDelRead;
+  ac->ev.addWrite = redisLibuvAddWrite;
+  ac->ev.delWrite = redisLibuvDelWrite;
+  ac->ev.cleanup  = redisLibuvCleanup;
+
+  redisLibuvEvents* p = (redisLibuvEvents*)malloc(sizeof(*p));
+
+  if (!p) {
+    return REDIS_ERR;
+  }
+
+  memset(p, 0, sizeof(*p));
+
+  if (uv_poll_init(loop, &p->handle, c->fd) != 0) {
+    return REDIS_ERR;
+  }
+
+  ac->ev.data    = p;
+  p->handle.data = p;
+  p->context     = ac;
+
+  return REDIS_OK;
+}
+#endif

src/common/thirdparty/hiredis/adapters/macosx.h

@@ -0,0 +1,114 @@
+//
+//  Created by Дмитрий Бахвалов on 13.07.15.
+//  Copyright (c) 2015 Dmitry Bakhvalov. All rights reserved.
+//
+
+#ifndef __HIREDIS_MACOSX_H__
+#define __HIREDIS_MACOSX_H__
+
+#include <CoreFoundation/CoreFoundation.h>
+
+#include "../hiredis.h"
+#include "../async.h"
+
+typedef struct {
+    redisAsyncContext *context;
+    CFSocketRef socketRef;
+    CFRunLoopSourceRef sourceRef;
+} RedisRunLoop;
+
+static int freeRedisRunLoop(RedisRunLoop* redisRunLoop) {
+    if( redisRunLoop != NULL ) {
+        if( redisRunLoop->sourceRef != NULL ) {
+            CFRunLoopSourceInvalidate(redisRunLoop->sourceRef);
+            CFRelease(redisRunLoop->sourceRef);
+        }
+        if( redisRunLoop->socketRef != NULL ) {
+            CFSocketInvalidate(redisRunLoop->socketRef);
+            CFRelease(redisRunLoop->socketRef);
+        }
+        free(redisRunLoop);
+    }
+    return REDIS_ERR;
+}
+
+static void redisMacOSAddRead(void *privdata) {
+    RedisRunLoop *redisRunLoop = (RedisRunLoop*)privdata;
+    CFSocketEnableCallBacks(redisRunLoop->socketRef, kCFSocketReadCallBack);
+}
+
+static void redisMacOSDelRead(void *privdata) {
+    RedisRunLoop *redisRunLoop = (RedisRunLoop*)privdata;
+    CFSocketDisableCallBacks(redisRunLoop->socketRef, kCFSocketReadCallBack);
+}
+
+static void redisMacOSAddWrite(void *privdata) {
+    RedisRunLoop *redisRunLoop = (RedisRunLoop*)privdata;
+    CFSocketEnableCallBacks(redisRunLoop->socketRef, kCFSocketWriteCallBack);
+}
+
+static void redisMacOSDelWrite(void *privdata) {
+    RedisRunLoop *redisRunLoop = (RedisRunLoop*)privdata;
+    CFSocketDisableCallBacks(redisRunLoop->socketRef, kCFSocketWriteCallBack);
+}
+
+static void redisMacOSCleanup(void *privdata) {
+    RedisRunLoop *redisRunLoop = (RedisRunLoop*)privdata;
+    freeRedisRunLoop(redisRunLoop);
+}
+
+static void redisMacOSAsyncCallback(CFSocketRef __unused s, CFSocketCallBackType callbackType, CFDataRef __unused address, const void __unused *data, void *info) {
+    redisAsyncContext* context = (redisAsyncContext*) info;
+
+    switch (callbackType) {
+        case kCFSocketReadCallBack:
+            redisAsyncHandleRead(context);
+            break;
+
+        case kCFSocketWriteCallBack:
+            redisAsyncHandleWrite(context);
+            break;
+
+        default:
+            break;
+    }
+}
+
+static int redisMacOSAttach(redisAsyncContext *redisAsyncCtx, CFRunLoopRef runLoop) {
+    redisContext *redisCtx = &(redisAsyncCtx->c);
+
+    /* Nothing should be attached when something is already attached */
+    if( redisAsyncCtx->ev.data != NULL ) return REDIS_ERR;
+
+    RedisRunLoop* redisRunLoop = (RedisRunLoop*) calloc(1, sizeof(RedisRunLoop));
+    if( !redisRunLoop ) return REDIS_ERR;
+
+    /* Setup redis stuff */
+    redisRunLoop->context = redisAsyncCtx;
+
+    redisAsyncCtx->ev.addRead  = redisMacOSAddRead;
+    redisAsyncCtx->ev.delRead  = redisMacOSDelRead;
+    redisAsyncCtx->ev.addWrite = redisMacOSAddWrite;
+    redisAsyncCtx->ev.delWrite = redisMacOSDelWrite;
+    redisAsyncCtx->ev.cleanup  = redisMacOSCleanup;
+    redisAsyncCtx->ev.data     = redisRunLoop;
+
+    /* Initialize and install read/write events */
+    CFSocketContext socketCtx = { 0, redisAsyncCtx, NULL, NULL, NULL };
+
+    redisRunLoop->socketRef = CFSocketCreateWithNative(NULL, redisCtx->fd,
+                                                       kCFSocketReadCallBack | kCFSocketWriteCallBack,
+                                                       redisMacOSAsyncCallback,
+                                                       &socketCtx);
+    if( !redisRunLoop->socketRef ) return freeRedisRunLoop(redisRunLoop);
+
+    redisRunLoop->sourceRef = CFSocketCreateRunLoopSource(NULL, redisRunLoop->socketRef, 0);
+    if( !redisRunLoop->sourceRef ) return freeRedisRunLoop(redisRunLoop);
+
+    CFRunLoopAddSource(runLoop, redisRunLoop->sourceRef, kCFRunLoopDefaultMode);
+
+    return REDIS_OK;
+}
+
+#endif
+

src/common/thirdparty/hiredis/adapters/qt.h

@@ -0,0 +1,135 @@
+/*-
+ * Copyright (C) 2014 Pietro Cerutti <gahr@gahr.ch>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef __HIREDIS_QT_H__
+#define __HIREDIS_QT_H__
+#include <QSocketNotifier>
+#include "../async.h"
+
+static void RedisQtAddRead(void *);
+static void RedisQtDelRead(void *);
+static void RedisQtAddWrite(void *);
+static void RedisQtDelWrite(void *);
+static void RedisQtCleanup(void *);
+
+class RedisQtAdapter : public QObject {
+
+    Q_OBJECT
+
+    friend
+    void RedisQtAddRead(void * adapter) {
+        RedisQtAdapter * a = static_cast<RedisQtAdapter *>(adapter);
+        a->addRead();
+    }
+
+    friend
+    void RedisQtDelRead(void * adapter) {
+        RedisQtAdapter * a = static_cast<RedisQtAdapter *>(adapter);
+        a->delRead();
+    }
+
+    friend
+    void RedisQtAddWrite(void * adapter) {
+        RedisQtAdapter * a = static_cast<RedisQtAdapter *>(adapter);
+        a->addWrite();
+    }
+
+    friend
+    void RedisQtDelWrite(void * adapter) {
+        RedisQtAdapter * a = static_cast<RedisQtAdapter *>(adapter);
+        a->delWrite();
+    }
+
+    friend
+    void RedisQtCleanup(void * adapter) {
+        RedisQtAdapter * a = static_cast<RedisQtAdapter *>(adapter);
+        a->cleanup();
+    }
+
+    public:
+        RedisQtAdapter(QObject * parent = 0)
+            : QObject(parent), m_ctx(0), m_read(0), m_write(0) { }
+
+        ~RedisQtAdapter() {
+            if (m_ctx != 0) {
+                m_ctx->ev.data = NULL;
+            }
+        }
+
+        int setContext(redisAsyncContext * ac) {
+            if (ac->ev.data != NULL) {
+                return REDIS_ERR;
+            }
+            m_ctx = ac;
+            m_ctx->ev.data = this;
+            m_ctx->ev.addRead = RedisQtAddRead;
+            m_ctx->ev.delRead = RedisQtDelRead;
+            m_ctx->ev.addWrite = RedisQtAddWrite;
+            m_ctx->ev.delWrite = RedisQtDelWrite;
+            m_ctx->ev.cleanup = RedisQtCleanup;
+            return REDIS_OK;
+        }
+
+    private:
+        void addRead() {
+            if (m_read) return;
+            m_read = new QSocketNotifier(m_ctx->c.fd, QSocketNotifier::Read, 0);
+            connect(m_read, SIGNAL(activated(int)), this, SLOT(read()));
+        }
+
+        void delRead() {
+            if (!m_read) return;
+            delete m_read;
+            m_read = 0;
+        }
+
+        void addWrite() {
+            if (m_write) return;
+            m_write = new QSocketNotifier(m_ctx->c.fd, QSocketNotifier::Write, 0);
+            connect(m_write, SIGNAL(activated(int)), this, SLOT(write()));
+        }
+
+        void delWrite() {
+            if (!m_write) return;
+            delete m_write;
+            m_write = 0;
+        }
+
+        void cleanup() {
+            delRead();
+            delWrite();
+        }
+
+    private slots:
+        void read() { redisAsyncHandleRead(m_ctx); }
+        void write() { redisAsyncHandleWrite(m_ctx); }
+
+    private:
+        redisAsyncContext * m_ctx;
+        QSocketNotifier * m_read;
+        QSocketNotifier * m_write;
+};
+
+#endif /* !__HIREDIS_QT_H__ */

src/common/thirdparty/hiredis/async.c

@@ -0,0 +1,687 @@
+/*
+ * Copyright (c) 2009-2011, Salvatore Sanfilippo <antirez at gmail dot com>
+ * Copyright (c) 2010-2011, Pieter Noordhuis <pcnoordhuis at gmail dot com>
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *   * Neither the name of Redis nor the names of its contributors may be used
+ *     to endorse or promote products derived from this software without
+ *     specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "fmacros.h"
+#include <stdlib.h>
+#include <string.h>
+#include <strings.h>
+#include <assert.h>
+#include <ctype.h>
+#include <errno.h>
+#include "async.h"
+#include "net.h"
+#include "dict.c"
+#include "sds.h"
+
+#define _EL_ADD_READ(ctx) do { \
+        if ((ctx)->ev.addRead) (ctx)->ev.addRead((ctx)->ev.data); \
+    } while(0)
+#define _EL_DEL_READ(ctx) do { \
+        if ((ctx)->ev.delRead) (ctx)->ev.delRead((ctx)->ev.data); \
+    } while(0)
+#define _EL_ADD_WRITE(ctx) do { \
+        if ((ctx)->ev.addWrite) (ctx)->ev.addWrite((ctx)->ev.data); \
+    } while(0)
+#define _EL_DEL_WRITE(ctx) do { \
+        if ((ctx)->ev.delWrite) (ctx)->ev.delWrite((ctx)->ev.data); \
+    } while(0)
+#define _EL_CLEANUP(ctx) do { \
+        if ((ctx)->ev.cleanup) (ctx)->ev.cleanup((ctx)->ev.data); \
+    } while(0);
+
+/* Forward declaration of function in hiredis.c */
+int __redisAppendCommand(redisContext *c, const char *cmd, size_t len);
+
+/* Functions managing dictionary of callbacks for pub/sub. */
+static unsigned int callbackHash(const void *key) {
+    return dictGenHashFunction((const unsigned char *)key,
+                               sdslen((const sds)key));
+}
+
+static void *callbackValDup(void *privdata, const void *src) {
+    ((void) privdata);
+    redisCallback *dup = malloc(sizeof(*dup));
+    memcpy(dup,src,sizeof(*dup));
+    return dup;
+}
+
+static int callbackKeyCompare(void *privdata, const void *key1, const void *key2) {
+    int l1, l2;
+    ((void) privdata);
+
+    l1 = sdslen((const sds)key1);
+    l2 = sdslen((const sds)key2);
+    if (l1 != l2) return 0;
+    return memcmp(key1,key2,l1) == 0;
+}
+
+static void callbackKeyDestructor(void *privdata, void *key) {
+    ((void) privdata);
+    sdsfree((sds)key);
+}
+
+static void callbackValDestructor(void *privdata, void *val) {
+    ((void) privdata);
+    free(val);
+}
+
+static dictType callbackDict = {
+    callbackHash,
+    NULL,
+    callbackValDup,
+    callbackKeyCompare,
+    callbackKeyDestructor,
+    callbackValDestructor
+};
+
+static redisAsyncContext *redisAsyncInitialize(redisContext *c) {
+    redisAsyncContext *ac;
+
+    ac = realloc(c,sizeof(redisAsyncContext));
+    if (ac == NULL)
+        return NULL;
+
+    c = &(ac->c);
+
+    /* The regular connect functions will always set the flag REDIS_CONNECTED.
+     * For the async API, we want to wait until the first write event is
+     * received up before setting this flag, so reset it here. */
+    c->flags &= ~REDIS_CONNECTED;
+
+    ac->err = 0;
+    ac->errstr = NULL;
+    ac->data = NULL;
+
+    ac->ev.data = NULL;
+    ac->ev.addRead = NULL;
+    ac->ev.delRead = NULL;
+    ac->ev.addWrite = NULL;
+    ac->ev.delWrite = NULL;
+    ac->ev.cleanup = NULL;
+
+    ac->onConnect = NULL;
+    ac->onDisconnect = NULL;
+
+    ac->replies.head = NULL;
+    ac->replies.tail = NULL;
+    ac->sub.invalid.head = NULL;
+    ac->sub.invalid.tail = NULL;
+    ac->sub.channels = dictCreate(&callbackDict,NULL);
+    ac->sub.patterns = dictCreate(&callbackDict,NULL);
+    return ac;
+}
+
+/* We want the error field to be accessible directly instead of requiring
+ * an indirection to the redisContext struct. */
+static void __redisAsyncCopyError(redisAsyncContext *ac) {
+    if (!ac)
+        return;
+
+    redisContext *c = &(ac->c);
+    ac->err = c->err;
+    ac->errstr = c->errstr;
+}
+
+redisAsyncContext *redisAsyncConnect(const char *ip, int port) {
+    redisContext *c;
+    redisAsyncContext *ac;
+
+    c = redisConnectNonBlock(ip,port);
+    if (c == NULL)
+        return NULL;
+
+    ac = redisAsyncInitialize(c);
+    if (ac == NULL) {
+        redisFree(c);
+        return NULL;
+    }
+
+    __redisAsyncCopyError(ac);
+    return ac;
+}
+
+redisAsyncContext *redisAsyncConnectBind(const char *ip, int port,
+                                         const char *source_addr) {
+    redisContext *c = redisConnectBindNonBlock(ip,port,source_addr);
+    redisAsyncContext *ac = redisAsyncInitialize(c);
+    __redisAsyncCopyError(ac);
+    return ac;
+}
+
+redisAsyncContext *redisAsyncConnectBindWithReuse(const char *ip, int port,
+                                                  const char *source_addr) {
+    redisContext *c = redisConnectBindNonBlockWithReuse(ip,port,source_addr);
+    redisAsyncContext *ac = redisAsyncInitialize(c);
+    __redisAsyncCopyError(ac);
+    return ac;
+}
+
+redisAsyncContext *redisAsyncConnectUnix(const char *path) {
+    redisContext *c;
+    redisAsyncContext *ac;
+
+    c = redisConnectUnixNonBlock(path);
+    if (c == NULL)
+        return NULL;
+
+    ac = redisAsyncInitialize(c);
+    if (ac == NULL) {
+        redisFree(c);
+        return NULL;
+    }
+
+    __redisAsyncCopyError(ac);
+    return ac;
+}
+
+int redisAsyncSetConnectCallback(redisAsyncContext *ac, redisConnectCallback *fn) {
+    if (ac->onConnect == NULL) {
+        ac->onConnect = fn;
+
+        /* The common way to detect an established connection is to wait for
+         * the first write event to be fired. This assumes the related event
+         * library functions are already set. */
+        _EL_ADD_WRITE(ac);
+        return REDIS_OK;
+    }
+    return REDIS_ERR;
+}
+
+int redisAsyncSetDisconnectCallback(redisAsyncContext *ac, redisDisconnectCallback *fn) {
+    if (ac->onDisconnect == NULL) {
+        ac->onDisconnect = fn;
+        return REDIS_OK;
+    }
+    return REDIS_ERR;
+}
+
+/* Helper functions to push/shift callbacks */
+static int __redisPushCallback(redisCallbackList *list, redisCallback *source) {
+    redisCallback *cb;
+
+    /* Copy callback from stack to heap */
+    cb = malloc(sizeof(*cb));
+    if (cb == NULL)
+        return REDIS_ERR_OOM;
+
+    if (source != NULL) {
+        memcpy(cb,source,sizeof(*cb));
+        cb->next = NULL;
+    }
+
+    /* Store callback in list */
+    if (list->head == NULL)
+        list->head = cb;
+    if (list->tail != NULL)
+        list->tail->next = cb;
+    list->tail = cb;
+    return REDIS_OK;
+}
+
+static int __redisShiftCallback(redisCallbackList *list, redisCallback *target) {
+    redisCallback *cb = list->head;
+    if (cb != NULL) {
+        list->head = cb->next;
+        if (cb == list->tail)
+            list->tail = NULL;
+
+        /* Copy callback from heap to stack */
+        if (target != NULL)
+            memcpy(target,cb,sizeof(*cb));
+        free(cb);
+        return REDIS_OK;
+    }
+    return REDIS_ERR;
+}
+
+static void __redisRunCallback(redisAsyncContext *ac, redisCallback *cb, redisReply *reply) {
+    redisContext *c = &(ac->c);
+    if (cb->fn != NULL) {
+        c->flags |= REDIS_IN_CALLBACK;
+        cb->fn(ac,reply,cb->privdata);
+        c->flags &= ~REDIS_IN_CALLBACK;
+    }
+}
+
+/* Helper function to free the context. */
+static void __redisAsyncFree(redisAsyncContext *ac) {
+    redisContext *c = &(ac->c);
+    redisCallback cb;
+    dictIterator *it;
+    dictEntry *de;
+
+    /* Execute pending callbacks with NULL reply. */
+    while (__redisShiftCallback(&ac->replies,&cb) == REDIS_OK)
+        __redisRunCallback(ac,&cb,NULL);
+
+    /* Execute callbacks for invalid commands */
+    while (__redisShiftCallback(&ac->sub.invalid,&cb) == REDIS_OK)
+        __redisRunCallback(ac,&cb,NULL);
+
+    /* Run subscription callbacks callbacks with NULL reply */
+    it = dictGetIterator(ac->sub.channels);
+    while ((de = dictNext(it)) != NULL)
+        __redisRunCallback(ac,dictGetEntryVal(de),NULL);
+    dictReleaseIterator(it);
+    dictRelease(ac->sub.channels);
+
+    it = dictGetIterator(ac->sub.patterns);
+    while ((de = dictNext(it)) != NULL)
+        __redisRunCallback(ac,dictGetEntryVal(de),NULL);
+    dictReleaseIterator(it);
+    dictRelease(ac->sub.patterns);
+
+    /* Signal event lib to clean up */
+    _EL_CLEANUP(ac);
+
+    /* Execute disconnect callback. When redisAsyncFree() initiated destroying
+     * this context, the status will always be REDIS_OK. */
+    if (ac->onDisconnect && (c->flags & REDIS_CONNECTED)) {
+        if (c->flags & REDIS_FREEING) {
+            ac->onDisconnect(ac,REDIS_OK);
+        } else {
+            ac->onDisconnect(ac,(ac->err == 0) ? REDIS_OK : REDIS_ERR);
+        }
+    }
+
+    /* Cleanup self */
+    redisFree(c);
+}
+
+/* Free the async context. When this function is called from a callback,
+ * control needs to be returned to redisProcessCallbacks() before actual
+ * free'ing. To do so, a flag is set on the context which is picked up by
+ * redisProcessCallbacks(). Otherwise, the context is immediately free'd. */
+void redisAsyncFree(redisAsyncContext *ac) {
+    redisContext *c = &(ac->c);
+    c->flags |= REDIS_FREEING;
+    if (!(c->flags & REDIS_IN_CALLBACK))
+        __redisAsyncFree(ac);
+}
+
+/* Helper function to make the disconnect happen and clean up. */
+static void __redisAsyncDisconnect(redisAsyncContext *ac) {
+    redisContext *c = &(ac->c);
+
+    /* Make sure error is accessible if there is any */
+    __redisAsyncCopyError(ac);
+
+    if (ac->err == 0) {
+        /* For clean disconnects, there should be no pending callbacks. */
+        assert(__redisShiftCallback(&ac->replies,NULL) == REDIS_ERR);
+    } else {
+        /* Disconnection is caused by an error, make sure that pending
+         * callbacks cannot call new commands. */
+        c->flags |= REDIS_DISCONNECTING;
+    }
+
+    /* For non-clean disconnects, __redisAsyncFree() will execute pending
+     * callbacks with a NULL-reply. */
+    __redisAsyncFree(ac);
+}
+
+/* Tries to do a clean disconnect from Redis, meaning it stops new commands
+ * from being issued, but tries to flush the output buffer and execute
+ * callbacks for all remaining replies. When this function is called from a
+ * callback, there might be more replies and we can safely defer disconnecting
+ * to redisProcessCallbacks(). Otherwise, we can only disconnect immediately
+ * when there are no pending callbacks. */
+void redisAsyncDisconnect(redisAsyncContext *ac) {
+    redisContext *c = &(ac->c);
+    c->flags |= REDIS_DISCONNECTING;
+    if (!(c->flags & REDIS_IN_CALLBACK) && ac->replies.head == NULL)
+        __redisAsyncDisconnect(ac);
+}
+
+static int __redisGetSubscribeCallback(redisAsyncContext *ac, redisReply *reply, redisCallback *dstcb) {
+    redisContext *c = &(ac->c);
+    dict *callbacks;
+    dictEntry *de;
+    int pvariant;
+    char *stype;
+    sds sname;
+
+    /* Custom reply functions are not supported for pub/sub. This will fail
+     * very hard when they are used... */
+    if (reply->type == REDIS_REPLY_ARRAY) {
+        assert(reply->elements >= 2);
+        assert(reply->element[0]->type == REDIS_REPLY_STRING);
+        stype = reply->element[0]->str;
+        pvariant = (tolower(stype[0]) == 'p') ? 1 : 0;
+
+        if (pvariant)
+            callbacks = ac->sub.patterns;
+        else
+            callbacks = ac->sub.channels;
+
+        /* Locate the right callback */
+        assert(reply->element[1]->type == REDIS_REPLY_STRING);
+        sname = sdsnewlen(reply->element[1]->str,reply->element[1]->len);
+        de = dictFind(callbacks,sname);
+        if (de != NULL) {
+            memcpy(dstcb,dictGetEntryVal(de),sizeof(*dstcb));
+
+            /* If this is an unsubscribe message, remove it. */
+            if (strcasecmp(stype+pvariant,"unsubscribe") == 0) {
+                dictDelete(callbacks,sname);
+
+                /* If this was the last unsubscribe message, revert to
+                 * non-subscribe mode. */
+                assert(reply->element[2]->type == REDIS_REPLY_INTEGER);
+                if (reply->element[2]->integer == 0)
+                    c->flags &= ~REDIS_SUBSCRIBED;
+            }
+        }
+        sdsfree(sname);
+    } else {
+        /* Shift callback for invalid commands. */
+        __redisShiftCallback(&ac->sub.invalid,dstcb);
+    }
+    return REDIS_OK;
+}
+
+void redisProcessCallbacks(redisAsyncContext *ac) {
+    redisContext *c = &(ac->c);
+    redisCallback cb = {NULL, NULL, NULL};
+    void *reply = NULL;
+    int status;
+
+    while((status = redisGetReply(c,&reply)) == REDIS_OK) {
+        if (reply == NULL) {
+            /* When the connection is being disconnected and there are
+             * no more replies, this is the cue to really disconnect. */
+            if (c->flags & REDIS_DISCONNECTING && sdslen(c->obuf) == 0
+                && ac->replies.head == NULL) {
+                __redisAsyncDisconnect(ac);
+                return;
+            }
+
+            /* If monitor mode, repush callback */
+            if(c->flags & REDIS_MONITORING) {
+                __redisPushCallback(&ac->replies,&cb);
+            }
+
+            /* When the connection is not being disconnected, simply stop
+             * trying to get replies and wait for the next loop tick. */
+            break;
+        }
+
+        /* Even if the context is subscribed, pending regular callbacks will
+         * get a reply before pub/sub messages arrive. */
+        if (__redisShiftCallback(&ac->replies,&cb) != REDIS_OK) {
+            /*
+             * A spontaneous reply in a not-subscribed context can be the error
+             * reply that is sent when a new connection exceeds the maximum
+             * number of allowed connections on the server side.
+             *
+             * This is seen as an error instead of a regular reply because the
+             * server closes the connection after sending it.
+             *
+             * To prevent the error from being overwritten by an EOF error the
+             * connection is closed here. See issue #43.
+             *
+             * Another possibility is that the server is loading its dataset.
+             * In this case we also want to close the connection, and have the
+             * user wait until the server is ready to take our request.
+             */
+            if (((redisReply*)reply)->type == REDIS_REPLY_ERROR) {
+                c->err = REDIS_ERR_OTHER;
+                snprintf(c->errstr,sizeof(c->errstr),"%s",((redisReply*)reply)->str);
+                c->reader->fn->freeObject(reply);
+                __redisAsyncDisconnect(ac);
+                return;
+            }
+            /* No more regular callbacks and no errors, the context *must* be subscribed or monitoring. */
+            assert((c->flags & REDIS_SUBSCRIBED || c->flags & REDIS_MONITORING));
+            if(c->flags & REDIS_SUBSCRIBED)
+                __redisGetSubscribeCallback(ac,reply,&cb);
+        }
+
+        if (cb.fn != NULL) {
+            __redisRunCallback(ac,&cb,reply);
+            c->reader->fn->freeObject(reply);
+
+            /* Proceed with free'ing when redisAsyncFree() was called. */
+            if (c->flags & REDIS_FREEING) {
+                __redisAsyncFree(ac);
+                return;
+            }
+        } else {
+            /* No callback for this reply. This can either be a NULL callback,
+             * or there were no callbacks to begin with. Either way, don't
+             * abort with an error, but simply ignore it because the client
+             * doesn't know what the server will spit out over the wire. */
+            c->reader->fn->freeObject(reply);
+        }
+    }
+
+    /* Disconnect when there was an error reading the reply */
+    if (status != REDIS_OK)
+        __redisAsyncDisconnect(ac);
+}
+
+/* Internal helper function to detect socket status the first time a read or
+ * write event fires. When connecting was not succesful, the connect callback
+ * is called with a REDIS_ERR status and the context is free'd. */
+static int __redisAsyncHandleConnect(redisAsyncContext *ac) {
+    redisContext *c = &(ac->c);
+
+    if (redisCheckSocketError(c) == REDIS_ERR) {
+        /* Try again later when connect(2) is still in progress. */
+        if (errno == EINPROGRESS)
+            return REDIS_OK;
+
+        if (ac->onConnect) ac->onConnect(ac,REDIS_ERR);
+        __redisAsyncDisconnect(ac);
+        return REDIS_ERR;
+    }
+
+    /* Mark context as connected. */
+    c->flags |= REDIS_CONNECTED;
+    if (ac->onConnect) ac->onConnect(ac,REDIS_OK);
+    return REDIS_OK;
+}
+
+/* This function should be called when the socket is readable.
+ * It processes all replies that can be read and executes their callbacks.
+ */
+void redisAsyncHandleRead(redisAsyncContext *ac) {
+    redisContext *c = &(ac->c);
+
+    if (!(c->flags & REDIS_CONNECTED)) {
+        /* Abort connect was not successful. */
+        if (__redisAsyncHandleConnect(ac) != REDIS_OK)
+            return;
+        /* Try again later when the context is still not connected. */
+        if (!(c->flags & REDIS_CONNECTED))
+            return;
+    }
+
+    if (redisBufferRead(c) == REDIS_ERR) {
+        __redisAsyncDisconnect(ac);
+    } else {
+        /* Always re-schedule reads */
+        _EL_ADD_READ(ac);
+        redisProcessCallbacks(ac);
+    }
+}
+
+void redisAsyncHandleWrite(redisAsyncContext *ac) {
+    redisContext *c = &(ac->c);
+    int done = 0;
+
+    if (!(c->flags & REDIS_CONNECTED)) {
+        /* Abort connect was not successful. */
+        if (__redisAsyncHandleConnect(ac) != REDIS_OK)
+            return;
+        /* Try again later when the context is still not connected. */
+        if (!(c->flags & REDIS_CONNECTED))
+            return;
+    }
+
+    if (redisBufferWrite(c,&done) == REDIS_ERR) {
+        __redisAsyncDisconnect(ac);
+    } else {
+        /* Continue writing when not done, stop writing otherwise */
+        if (!done)
+            _EL_ADD_WRITE(ac);
+        else
+            _EL_DEL_WRITE(ac);
+
+        /* Always schedule reads after writes */
+        _EL_ADD_READ(ac);
+    }
+}
+
+/* Sets a pointer to the first argument and its length starting at p. Returns
+ * the number of bytes to skip to get to the following argument. */
+static const char *nextArgument(const char *start, const char **str, size_t *len) {
+    const char *p = start;
+    if (p[0] != '$') {
+        p = strchr(p,'$');
+        if (p == NULL) return NULL;
+    }
+
+    *len = (int)strtol(p+1,NULL,10);
+    p = strchr(p,'\r');
+    assert(p);
+    *str = p+2;
+    return p+2+(*len)+2;
+}
+
+/* Helper function for the redisAsyncCommand* family of functions. Writes a
+ * formatted command to the output buffer and registers the provided callback
+ * function with the context. */
+static int __redisAsyncCommand(redisAsyncContext *ac, redisCallbackFn *fn, void *privdata, const char *cmd, size_t len) {
+    redisContext *c = &(ac->c);
+    redisCallback cb;
+    int pvariant, hasnext;
+    const char *cstr, *astr;
+    size_t clen, alen;
+    const char *p;
+    sds sname;
+    int ret;
+
+    /* Don't accept new commands when the connection is about to be closed. */
+    if (c->flags & (REDIS_DISCONNECTING | REDIS_FREEING)) return REDIS_ERR;
+
+    /* Setup callback */
+    cb.fn = fn;
+    cb.privdata = privdata;
+
+    /* Find out which command will be appended. */
+    p = nextArgument(cmd,&cstr,&clen);
+    assert(p != NULL);
+    hasnext = (p[0] == '$');
+    pvariant = (tolower(cstr[0]) == 'p') ? 1 : 0;
+    cstr += pvariant;
+    clen -= pvariant;
+
+    if (hasnext && strncasecmp(cstr,"subscribe\r\n",11) == 0) {
+        c->flags |= REDIS_SUBSCRIBED;
+
+        /* Add every channel/pattern to the list of subscription callbacks. */
+        while ((p = nextArgument(p,&astr,&alen)) != NULL) {
+            sname = sdsnewlen(astr,alen);
+            if (pvariant)
+                ret = dictReplace(ac->sub.patterns,sname,&cb);
+            else
+                ret = dictReplace(ac->sub.channels,sname,&cb);
+
+            if (ret == 0) sdsfree(sname);
+        }
+    } else if (strncasecmp(cstr,"unsubscribe\r\n",13) == 0) {
+        /* It is only useful to call (P)UNSUBSCRIBE when the context is
+         * subscribed to one or more channels or patterns. */
+        if (!(c->flags & REDIS_SUBSCRIBED)) return REDIS_ERR;
+
+        /* (P)UNSUBSCRIBE does not have its own response: every channel or
+         * pattern that is unsubscribed will receive a message. This means we
+         * should not append a callback function for this command. */
+     } else if(strncasecmp(cstr,"monitor\r\n",9) == 0) {
+         /* Set monitor flag and push callback */
+         c->flags |= REDIS_MONITORING;
+         __redisPushCallback(&ac->replies,&cb);
+    } else {
+        if (c->flags & REDIS_SUBSCRIBED)
+            /* This will likely result in an error reply, but it needs to be
+             * received and passed to the callback. */
+            __redisPushCallback(&ac->sub.invalid,&cb);
+        else
+            __redisPushCallback(&ac->replies,&cb);
+    }
+
+    __redisAppendCommand(c,cmd,len);
+
+    /* Always schedule a write when the write buffer is non-empty */
+    _EL_ADD_WRITE(ac);
+
+    return REDIS_OK;
+}
+
+int redisvAsyncCommand(redisAsyncContext *ac, redisCallbackFn *fn, void *privdata, const char *format, va_list ap) {
+    char *cmd;
+    int len;
+    int status;
+    len = redisvFormatCommand(&cmd,format,ap);
+
+    /* We don't want to pass -1 or -2 to future functions as a length. */
+    if (len < 0)
+        return REDIS_ERR;
+
+    status = __redisAsyncCommand(ac,fn,privdata,cmd,len);
+    free(cmd);
+    return status;
+}
+
+int redisAsyncCommand(redisAsyncContext *ac, redisCallbackFn *fn, void *privdata, const char *format, ...) {
+    va_list ap;
+    int status;
+    va_start(ap,format);
+    status = redisvAsyncCommand(ac,fn,privdata,format,ap);
+    va_end(ap);
+    return status;
+}
+
+int redisAsyncCommandArgv(redisAsyncContext *ac, redisCallbackFn *fn, void *privdata, int argc, const char **argv, const size_t *argvlen) {
+    sds cmd;
+    int len;
+    int status;
+    len = redisFormatSdsCommandArgv(&cmd,argc,argv,argvlen);
+    status = __redisAsyncCommand(ac,fn,privdata,cmd,len);
+    sdsfree(cmd);
+    return status;
+}
+
+int redisAsyncFormattedCommand(redisAsyncContext *ac, redisCallbackFn *fn, void *privdata, const char *cmd, size_t len) {
+    int status = __redisAsyncCommand(ac,fn,privdata,cmd,len);
+    return status;
+}

src/common/thirdparty/hiredis/async.h

@@ -0,0 +1,129 @@
+/*
+ * Copyright (c) 2009-2011, Salvatore Sanfilippo <antirez at gmail dot com>
+ * Copyright (c) 2010-2011, Pieter Noordhuis <pcnoordhuis at gmail dot com>
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *   * Neither the name of Redis nor the names of its contributors may be used
+ *     to endorse or promote products derived from this software without
+ *     specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __HIREDIS_ASYNC_H
+#define __HIREDIS_ASYNC_H
+#include "hiredis.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct redisAsyncContext; /* need forward declaration of redisAsyncContext */
+struct dict; /* dictionary header is included in async.c */
+
+/* Reply callback prototype and container */
+typedef void (redisCallbackFn)(struct redisAsyncContext*, void*, void*);
+typedef struct redisCallback {
+    struct redisCallback *next; /* simple singly linked list */
+    redisCallbackFn *fn;
+    void *privdata;
+} redisCallback;
+
+/* List of callbacks for either regular replies or pub/sub */
+typedef struct redisCallbackList {
+    redisCallback *head, *tail;
+} redisCallbackList;
+
+/* Connection callback prototypes */
+typedef void (redisDisconnectCallback)(const struct redisAsyncContext*, int status);
+typedef void (redisConnectCallback)(const struct redisAsyncContext*, int status);
+
+/* Context for an async connection to Redis */
+typedef struct redisAsyncContext {
+    /* Hold the regular context, so it can be realloc'ed. */
+    redisContext c;
+
+    /* Setup error flags so they can be used directly. */
+    int err;
+    char *errstr;
+
+    /* Not used by hiredis */
+    void *data;
+
+    /* Event library data and hooks */
+    struct {
+        void *data;
+
+        /* Hooks that are called when the library expects to start
+         * reading/writing. These functions should be idempotent. */
+        void (*addRead)(void *privdata);
+        void (*delRead)(void *privdata);
+        void (*addWrite)(void *privdata);
+        void (*delWrite)(void *privdata);
+        void (*cleanup)(void *privdata);
+    } ev;
+
+    /* Called when either the connection is terminated due to an error or per
+     * user request. The status is set accordingly (REDIS_OK, REDIS_ERR). */
+    redisDisconnectCallback *onDisconnect;
+
+    /* Called when the first write event was received. */
+    redisConnectCallback *onConnect;
+
+    /* Regular command callbacks */
+    redisCallbackList replies;
+
+    /* Subscription callbacks */
+    struct {
+        redisCallbackList invalid;
+        struct dict *channels;
+        struct dict *patterns;
+    } sub;
+} redisAsyncContext;
+
+/* Functions that proxy to hiredis */
+redisAsyncContext *redisAsyncConnect(const char *ip, int port);
+redisAsyncContext *redisAsyncConnectBind(const char *ip, int port, const char *source_addr);
+redisAsyncContext *redisAsyncConnectBindWithReuse(const char *ip, int port,
+                                                  const char *source_addr);
+redisAsyncContext *redisAsyncConnectUnix(const char *path);
+int redisAsyncSetConnectCallback(redisAsyncContext *ac, redisConnectCallback *fn);
+int redisAsyncSetDisconnectCallback(redisAsyncContext *ac, redisDisconnectCallback *fn);
+void redisAsyncDisconnect(redisAsyncContext *ac);
+void redisAsyncFree(redisAsyncContext *ac);
+
+/* Handle read/write events */
+void redisAsyncHandleRead(redisAsyncContext *ac);
+void redisAsyncHandleWrite(redisAsyncContext *ac);
+
+/* Command functions for an async context. Write the command to the
+ * output buffer and register the provided callback. */
+int redisvAsyncCommand(redisAsyncContext *ac, redisCallbackFn *fn, void *privdata, const char *format, va_list ap);
+int redisAsyncCommand(redisAsyncContext *ac, redisCallbackFn *fn, void *privdata, const char *format, ...);
+int redisAsyncCommandArgv(redisAsyncContext *ac, redisCallbackFn *fn, void *privdata, int argc, const char **argv, const size_t *argvlen);
+int redisAsyncFormattedCommand(redisAsyncContext *ac, redisCallbackFn *fn, void *privdata, const char *cmd, size_t len);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

src/common/thirdparty/hiredis/dict.c

@@ -0,0 +1,338 @@
+/* Hash table implementation.
+ *
+ * This file implements in memory hash tables with insert/del/replace/find/
+ * get-random-element operations. Hash tables will auto resize if needed
+ * tables of power of two in size are used, collisions are handled by
+ * chaining. See the source code for more information... :)
+ *
+ * Copyright (c) 2006-2010, Salvatore Sanfilippo <antirez at gmail dot com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *   * Neither the name of Redis nor the names of its contributors may be used
+ *     to endorse or promote products derived from this software without
+ *     specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "fmacros.h"
+#include <stdlib.h>
+#include <assert.h>
+#include <limits.h>
+#include "dict.h"
+
+/* -------------------------- private prototypes ---------------------------- */
+
+static int _dictExpandIfNeeded(dict *ht);
+static unsigned long _dictNextPower(unsigned long size);
+static int _dictKeyIndex(dict *ht, const void *key);
+static int _dictInit(dict *ht, dictType *type, void *privDataPtr);
+
+/* -------------------------- hash functions -------------------------------- */
+
+/* Generic hash function (a popular one from Bernstein).
+ * I tested a few and this was the best. */
+static unsigned int dictGenHashFunction(const unsigned char *buf, int len) {
+    unsigned int hash = 5381;
+
+    while (len--)
+        hash = ((hash << 5) + hash) + (*buf++); /* hash * 33 + c */
+    return hash;
+}
+
+/* ----------------------------- API implementation ------------------------- */
+
+/* Reset an hashtable already initialized with ht_init().
+ * NOTE: This function should only called by ht_destroy(). */
+static void _dictReset(dict *ht) {
+    ht->table = NULL;
+    ht->size = 0;
+    ht->sizemask = 0;
+    ht->used = 0;
+}
+
+/* Create a new hash table */
+static dict *dictCreate(dictType *type, void *privDataPtr) {
+    dict *ht = malloc(sizeof(*ht));
+    _dictInit(ht,type,privDataPtr);
+    return ht;
+}
+
+/* Initialize the hash table */
+static int _dictInit(dict *ht, dictType *type, void *privDataPtr) {
+    _dictReset(ht);
+    ht->type = type;
+    ht->privdata = privDataPtr;
+    return DICT_OK;
+}
+
+/* Expand or create the hashtable */
+static int dictExpand(dict *ht, unsigned long size) {
+    dict n; /* the new hashtable */
+    unsigned long realsize = _dictNextPower(size), i;
+
+    /* the size is invalid if it is smaller than the number of
+     * elements already inside the hashtable */
+    if (ht->used > size)
+        return DICT_ERR;
+
+    _dictInit(&n, ht->type, ht->privdata);
+    n.size = realsize;
+    n.sizemask = realsize-1;
+    n.table = calloc(realsize,sizeof(dictEntry*));
+
+    /* Copy all the elements from the old to the new table:
+     * note that if the old hash table is empty ht->size is zero,
+     * so dictExpand just creates an hash table. */
+    n.used = ht->used;
+    for (i = 0; i < ht->size && ht->used > 0; i++) {
+        dictEntry *he, *nextHe;
+
+        if (ht->table[i] == NULL) continue;
+
+        /* For each hash entry on this slot... */
+        he = ht->table[i];
+        while(he) {
+            unsigned int h;
+
+            nextHe = he->next;
+            /* Get the new element index */
+            h = dictHashKey(ht, he->key) & n.sizemask;
+            he->next = n.table[h];
+            n.table[h] = he;
+            ht->used--;
+            /* Pass to the next element */
+            he = nextHe;
+        }
+    }
+    assert(ht->used == 0);
+    free(ht->table);
+
+    /* Remap the new hashtable in the old */
+    *ht = n;
+    return DICT_OK;
+}
+
+/* Add an element to the target hash table */
+static int dictAdd(dict *ht, void *key, void *val) {
+    int index;
+    dictEntry *entry;
+
+    /* Get the index of the new element, or -1 if
+     * the element already exists. */
+    if ((index = _dictKeyIndex(ht, key)) == -1)
+        return DICT_ERR;
+
+    /* Allocates the memory and stores key */
+    entry = malloc(sizeof(*entry));
+    entry->next = ht->table[index];
+    ht->table[index] = entry;
+
+    /* Set the hash entry fields. */
+    dictSetHashKey(ht, entry, key);
+    dictSetHashVal(ht, entry, val);
+    ht->used++;
+    return DICT_OK;
+}
+
+/* Add an element, discarding the old if the key already exists.
+ * Return 1 if the key was added from scratch, 0 if there was already an
+ * element with such key and dictReplace() just performed a value update
+ * operation. */
+static int dictReplace(dict *ht, void *key, void *val) {
+    dictEntry *entry, auxentry;
+
+    /* Try to add the element. If the key
+     * does not exists dictAdd will suceed. */
+    if (dictAdd(ht, key, val) == DICT_OK)
+        return 1;
+    /* It already exists, get the entry */
+    entry = dictFind(ht, key);
+    /* Free the old value and set the new one */
+    /* Set the new value and free the old one. Note that it is important
+     * to do that in this order, as the value may just be exactly the same
+     * as the previous one. In this context, think to reference counting,
+     * you want to increment (set), and then decrement (free), and not the
+     * reverse. */
+    auxentry = *entry;
+    dictSetHashVal(ht, entry, val);
+    dictFreeEntryVal(ht, &auxentry);
+    return 0;
+}
+
+/* Search and remove an element */
+static int dictDelete(dict *ht, const void *key) {
+    unsigned int h;
+    dictEntry *de, *prevde;
+
+    if (ht->size == 0)
+        return DICT_ERR;
+    h = dictHashKey(ht, key) & ht->sizemask;
+    de = ht->table[h];
+
+    prevde = NULL;
+    while(de) {
+        if (dictCompareHashKeys(ht,key,de->key)) {
+            /* Unlink the element from the list */
+            if (prevde)
+                prevde->next = de->next;
+            else
+                ht->table[h] = de->next;
+
+            dictFreeEntryKey(ht,de);
+            dictFreeEntryVal(ht,de);
+            free(de);
+            ht->used--;
+            return DICT_OK;
+        }
+        prevde = de;
+        de = de->next;
+    }
+    return DICT_ERR; /* not found */
+}
+
+/* Destroy an entire hash table */
+static int _dictClear(dict *ht) {
+    unsigned long i;
+
+    /* Free all the elements */
+    for (i = 0; i < ht->size && ht->used > 0; i++) {
+        dictEntry *he, *nextHe;
+
+        if ((he = ht->table[i]) == NULL) continue;
+        while(he) {
+            nextHe = he->next;
+            dictFreeEntryKey(ht, he);
+            dictFreeEntryVal(ht, he);
+            free(he);
+            ht->used--;
+            he = nextHe;
+        }
+    }
+    /* Free the table and the allocated cache structure */
+    free(ht->table);
+    /* Re-initialize the table */
+    _dictReset(ht);
+    return DICT_OK; /* never fails */
+}
+
+/* Clear & Release the hash table */
+static void dictRelease(dict *ht) {
+    _dictClear(ht);
+    free(ht);
+}
+
+static dictEntry *dictFind(dict *ht, const void *key) {
+    dictEntry *he;
+    unsigned int h;
+
+    if (ht->size == 0) return NULL;
+    h = dictHashKey(ht, key) & ht->sizemask;
+    he = ht->table[h];
+    while(he) {
+        if (dictCompareHashKeys(ht, key, he->key))
+            return he;
+        he = he->next;
+    }
+    return NULL;
+}
+
+static dictIterator *dictGetIterator(dict *ht) {
+    dictIterator *iter = malloc(sizeof(*iter));
+
+    iter->ht = ht;
+    iter->index = -1;
+    iter->entry = NULL;
+    iter->nextEntry = NULL;
+    return iter;
+}
+
+static dictEntry *dictNext(dictIterator *iter) {
+    while (1) {
+        if (iter->entry == NULL) {
+            iter->index++;
+            if (iter->index >=
+                    (signed)iter->ht->size) break;
+            iter->entry = iter->ht->table[iter->index];
+        } else {
+            iter->entry = iter->nextEntry;
+        }
+        if (iter->entry) {
+            /* We need to save the 'next' here, the iterator user
+             * may delete the entry we are returning. */
+            iter->nextEntry = iter->entry->next;
+            return iter->entry;
+        }
+    }
+    return NULL;
+}
+
+static void dictReleaseIterator(dictIterator *iter) {
+    free(iter);
+}
+
+/* ------------------------- private functions ------------------------------ */
+
+/* Expand the hash table if needed */
+static int _dictExpandIfNeeded(dict *ht) {
+    /* If the hash table is empty expand it to the intial size,
+     * if the table is "full" dobule its size. */
+    if (ht->size == 0)
+        return dictExpand(ht, DICT_HT_INITIAL_SIZE);
+    if (ht->used == ht->size)
+        return dictExpand(ht, ht->size*2);
+    return DICT_OK;
+}
+
+/* Our hash table capability is a power of two */
+static unsigned long _dictNextPower(unsigned long size) {
+    unsigned long i = DICT_HT_INITIAL_SIZE;
+
+    if (size >= LONG_MAX) return LONG_MAX;
+    while(1) {
+        if (i >= size)
+            return i;
+        i *= 2;
+    }
+}
+
+/* Returns the index of a free slot that can be populated with
+ * an hash entry for the given 'key'.
+ * If the key already exists, -1 is returned. */
+static int _dictKeyIndex(dict *ht, const void *key) {
+    unsigned int h;
+    dictEntry *he;
+
+    /* Expand the hashtable if needed */
+    if (_dictExpandIfNeeded(ht) == DICT_ERR)
+        return -1;
+    /* Compute the key hash value */
+    h = dictHashKey(ht, key) & ht->sizemask;
+    /* Search if this slot does not already contain the given key */
+    he = ht->table[h];
+    while(he) {
+        if (dictCompareHashKeys(ht, key, he->key))
+            return -1;
+        he = he->next;
+    }
+    return h;
+}
+

src/common/thirdparty/hiredis/dict.h

@@ -0,0 +1,126 @@
+/* Hash table implementation.
+ *
+ * This file implements in memory hash tables with insert/del/replace/find/
+ * get-random-element operations. Hash tables will auto resize if needed
+ * tables of power of two in size are used, collisions are handled by
+ * chaining. See the source code for more information... :)
+ *
+ * Copyright (c) 2006-2010, Salvatore Sanfilippo <antirez at gmail dot com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *   * Neither the name of Redis nor the names of its contributors may be used
+ *     to endorse or promote products derived from this software without
+ *     specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __DICT_H
+#define __DICT_H
+
+#define DICT_OK 0
+#define DICT_ERR 1
+
+/* Unused arguments generate annoying warnings... */
+#define DICT_NOTUSED(V) ((void) V)
+
+typedef struct dictEntry {
+    void *key;
+    void *val;
+    struct dictEntry *next;
+} dictEntry;
+
+typedef struct dictType {
+    unsigned int (*hashFunction)(const void *key);
+    void *(*keyDup)(void *privdata, const void *key);
+    void *(*valDup)(void *privdata, const void *obj);
+    int (*keyCompare)(void *privdata, const void *key1, const void *key2);
+    void (*keyDestructor)(void *privdata, void *key);
+    void (*valDestructor)(void *privdata, void *obj);
+} dictType;
+
+typedef struct dict {
+    dictEntry **table;
+    dictType *type;
+    unsigned long size;
+    unsigned long sizemask;
+    unsigned long used;
+    void *privdata;
+} dict;
+
+typedef struct dictIterator {
+    dict *ht;
+    int index;
+    dictEntry *entry, *nextEntry;
+} dictIterator;
+
+/* This is the initial size of every hash table */
+#define DICT_HT_INITIAL_SIZE     4
+
+/* ------------------------------- Macros ------------------------------------*/
+#define dictFreeEntryVal(ht, entry) \
+    if ((ht)->type->valDestructor) \
+        (ht)->type->valDestructor((ht)->privdata, (entry)->val)
+
+#define dictSetHashVal(ht, entry, _val_) do { \
+    if ((ht)->type->valDup) \
+        entry->val = (ht)->type->valDup((ht)->privdata, _val_); \
+    else \
+        entry->val = (_val_); \
+} while(0)
+
+#define dictFreeEntryKey(ht, entry) \
+    if ((ht)->type->keyDestructor) \
+        (ht)->type->keyDestructor((ht)->privdata, (entry)->key)
+
+#define dictSetHashKey(ht, entry, _key_) do { \
+    if ((ht)->type->keyDup) \
+        entry->key = (ht)->type->keyDup((ht)->privdata, _key_); \
+    else \
+        entry->key = (_key_); \
+} while(0)
+
+#define dictCompareHashKeys(ht, key1, key2) \
+    (((ht)->type->keyCompare) ? \
+        (ht)->type->keyCompare((ht)->privdata, key1, key2) : \
+        (key1) == (key2))
+
+#define dictHashKey(ht, key) (ht)->type->hashFunction(key)
+
+#define dictGetEntryKey(he) ((he)->key)
+#define dictGetEntryVal(he) ((he)->val)
+#define dictSlots(ht) ((ht)->size)
+#define dictSize(ht) ((ht)->used)
+
+/* API */
+static unsigned int dictGenHashFunction(const unsigned char *buf, int len);
+static dict *dictCreate(dictType *type, void *privDataPtr);
+static int dictExpand(dict *ht, unsigned long size);
+static int dictAdd(dict *ht, void *key, void *val);
+static int dictReplace(dict *ht, void *key, void *val);
+static int dictDelete(dict *ht, const void *key);
+static void dictRelease(dict *ht);
+static dictEntry * dictFind(dict *ht, const void *key);
+static dictIterator *dictGetIterator(dict *ht);
+static dictEntry *dictNext(dictIterator *iter);
+static void dictReleaseIterator(dictIterator *iter);
+
+#endif /* __DICT_H */

src/common/thirdparty/hiredis/examples/example-ae.c

@@ -0,0 +1,62 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <signal.h>
+
+#include <hiredis.h>
+#include <async.h>
+#include <adapters/ae.h>
+
+/* Put event loop in the global scope, so it can be explicitly stopped */
+static aeEventLoop *loop;
+
+void getCallback(redisAsyncContext *c, void *r, void *privdata) {
+    redisReply *reply = r;
+    if (reply == NULL) return;
+    printf("argv[%s]: %s\n", (char*)privdata, reply->str);
+
+    /* Disconnect after receiving the reply to GET */
+    redisAsyncDisconnect(c);
+}
+
+void connectCallback(const redisAsyncContext *c, int status) {
+    if (status != REDIS_OK) {
+        printf("Error: %s\n", c->errstr);
+        aeStop(loop);
+        return;
+    }
+
+    printf("Connected...\n");
+}
+
+void disconnectCallback(const redisAsyncContext *c, int status) {
+    if (status != REDIS_OK) {
+        printf("Error: %s\n", c->errstr);
+        aeStop(loop);
+        return;
+    }
+
+    printf("Disconnected...\n");
+    aeStop(loop);
+}
+
+int main (int argc, char **argv) {
+    signal(SIGPIPE, SIG_IGN);
+
+    redisAsyncContext *c = redisAsyncConnect("127.0.0.1", 6379);
+    if (c->err) {
+        /* Let *c leak for now... */
+        printf("Error: %s\n", c->errstr);
+        return 1;
+    }
+
+    loop = aeCreateEventLoop(64);
+    redisAeAttach(loop, c);
+    redisAsyncSetConnectCallback(c,connectCallback);
+    redisAsyncSetDisconnectCallback(c,disconnectCallback);
+    redisAsyncCommand(c, NULL, NULL, "SET key %b", argv[argc-1], strlen(argv[argc-1]));
+    redisAsyncCommand(c, getCallback, (char*)"end-1", "GET key");
+    aeMain(loop);
+    return 0;
+}
+

src/common/thirdparty/hiredis/examples/example-glib.c

@@ -0,0 +1,73 @@
+#include <stdlib.h>
+
+#include <hiredis.h>
+#include <async.h>
+#include <adapters/glib.h>
+
+static GMainLoop *mainloop;
+
+static void
+connect_cb (const redisAsyncContext *ac G_GNUC_UNUSED,
+            int status)
+{
+    if (status != REDIS_OK) {
+        g_printerr("Failed to connect: %s\n", ac->errstr);
+        g_main_loop_quit(mainloop);
+    } else {
+        g_printerr("Connected...\n");
+    }
+}
+
+static void
+disconnect_cb (const redisAsyncContext *ac G_GNUC_UNUSED,
+               int status)
+{
+    if (status != REDIS_OK) {
+        g_error("Failed to disconnect: %s", ac->errstr);
+    } else {
+        g_printerr("Disconnected...\n");
+        g_main_loop_quit(mainloop);
+    }
+}
+
+static void
+command_cb(redisAsyncContext *ac,
+           gpointer r,
+           gpointer user_data G_GNUC_UNUSED)
+{
+    redisReply *reply = r;
+
+    if (reply) {
+        g_print("REPLY: %s\n", reply->str);
+    }
+
+    redisAsyncDisconnect(ac);
+}
+
+gint
+main (gint argc     G_GNUC_UNUSED,
+      gchar *argv[] G_GNUC_UNUSED)
+{
+    redisAsyncContext *ac;
+    GMainContext *context = NULL;
+    GSource *source;
+
+    ac = redisAsyncConnect("127.0.0.1", 6379);
+    if (ac->err) {
+        g_printerr("%s\n", ac->errstr);
+        exit(EXIT_FAILURE);
+    }
+
+    source = redis_source_new(ac);
+    mainloop = g_main_loop_new(context, FALSE);
+    g_source_attach(source, context);
+
+    redisAsyncSetConnectCallback(ac, connect_cb);
+    redisAsyncSetDisconnectCallback(ac, disconnect_cb);
+    redisAsyncCommand(ac, command_cb, NULL, "SET key 1234");
+    redisAsyncCommand(ac, command_cb, NULL, "GET key");
+
+    g_main_loop_run(mainloop);
+
+    return EXIT_SUCCESS;
+}

src/common/thirdparty/hiredis/examples/example-ivykis.c

@@ -0,0 +1,58 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <signal.h>
+
+#include <hiredis.h>
+#include <async.h>
+#include <adapters/ivykis.h>
+
+void getCallback(redisAsyncContext *c, void *r, void *privdata) {
+    redisReply *reply = r;
+    if (reply == NULL) return;
+    printf("argv[%s]: %s\n", (char*)privdata, reply->str);
+
+    /* Disconnect after receiving the reply to GET */
+    redisAsyncDisconnect(c);
+}
+
+void connectCallback(const redisAsyncContext *c, int status) {
+    if (status != REDIS_OK) {
+        printf("Error: %s\n", c->errstr);
+        return;
+    }
+    printf("Connected...\n");
+}
+
+void disconnectCallback(const redisAsyncContext *c, int status) {
+    if (status != REDIS_OK) {
+        printf("Error: %s\n", c->errstr);
+        return;
+    }
+    printf("Disconnected...\n");
+}
+
+int main (int argc, char **argv) {
+    signal(SIGPIPE, SIG_IGN);
+
+    iv_init();
+
+    redisAsyncContext *c = redisAsyncConnect("127.0.0.1", 6379);
+    if (c->err) {
+        /* Let *c leak for now... */
+        printf("Error: %s\n", c->errstr);
+        return 1;
+    }
+
+    redisIvykisAttach(c);
+    redisAsyncSetConnectCallback(c,connectCallback);
+    redisAsyncSetDisconnectCallback(c,disconnectCallback);
+    redisAsyncCommand(c, NULL, NULL, "SET key %b", argv[argc-1], strlen(argv[argc-1]));
+    redisAsyncCommand(c, getCallback, (char*)"end-1", "GET key");
+
+    iv_main();
+
+    iv_deinit();
+
+    return 0;
+}

src/common/thirdparty/hiredis/examples/example-libev.c

@@ -0,0 +1,52 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <signal.h>
+
+#include <hiredis.h>
+#include <async.h>
+#include <adapters/libev.h>
+
+void getCallback(redisAsyncContext *c, void *r, void *privdata) {
+    redisReply *reply = r;
+    if (reply == NULL) return;
+    printf("argv[%s]: %s\n", (char*)privdata, reply->str);
+
+    /* Disconnect after receiving the reply to GET */
+    redisAsyncDisconnect(c);
+}
+
+void connectCallback(const redisAsyncContext *c, int status) {
+    if (status != REDIS_OK) {
+        printf("Error: %s\n", c->errstr);
+        return;
+    }
+    printf("Connected...\n");
+}
+
+void disconnectCallback(const redisAsyncContext *c, int status) {
+    if (status != REDIS_OK) {
+        printf("Error: %s\n", c->errstr);
+        return;
+    }
+    printf("Disconnected...\n");
+}
+
+int main (int argc, char **argv) {
+    signal(SIGPIPE, SIG_IGN);
+
+    redisAsyncContext *c = redisAsyncConnect("127.0.0.1", 6379);
+    if (c->err) {
+        /* Let *c leak for now... */
+        printf("Error: %s\n", c->errstr);
+        return 1;
+    }
+
+    redisLibevAttach(EV_DEFAULT_ c);
+    redisAsyncSetConnectCallback(c,connectCallback);
+    redisAsyncSetDisconnectCallback(c,disconnectCallback);
+    redisAsyncCommand(c, NULL, NULL, "SET key %b", argv[argc-1], strlen(argv[argc-1]));
+    redisAsyncCommand(c, getCallback, (char*)"end-1", "GET key");
+    ev_loop(EV_DEFAULT_ 0);
+    return 0;
+}

src/common/thirdparty/hiredis/examples/example-libevent.c

@@ -0,0 +1,53 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <signal.h>
+
+#include <hiredis.h>
+#include <async.h>
+#include <adapters/libevent.h>
+
+void getCallback(redisAsyncContext *c, void *r, void *privdata) {
+    redisReply *reply = r;
+    if (reply == NULL) return;
+    printf("argv[%s]: %s\n", (char*)privdata, reply->str);
+
+    /* Disconnect after receiving the reply to GET */
+    redisAsyncDisconnect(c);
+}
+
+void connectCallback(const redisAsyncContext *c, int status) {
+    if (status != REDIS_OK) {
+        printf("Error: %s\n", c->errstr);
+        return;
+    }
+    printf("Connected...\n");
+}
+
+void disconnectCallback(const redisAsyncContext *c, int status) {
+    if (status != REDIS_OK) {
+        printf("Error: %s\n", c->errstr);
+        return;
+    }
+    printf("Disconnected...\n");
+}
+
+int main (int argc, char **argv) {
+    signal(SIGPIPE, SIG_IGN);
+    struct event_base *base = event_base_new();
+
+    redisAsyncContext *c = redisAsyncConnect("127.0.0.1", 6379);
+    if (c->err) {
+        /* Let *c leak for now... */
+        printf("Error: %s\n", c->errstr);
+        return 1;
+    }
+
+    redisLibeventAttach(c,base);
+    redisAsyncSetConnectCallback(c,connectCallback);
+    redisAsyncSetDisconnectCallback(c,disconnectCallback);
+    redisAsyncCommand(c, NULL, NULL, "SET key %b", argv[argc-1], strlen(argv[argc-1]));
+    redisAsyncCommand(c, getCallback, (char*)"end-1", "GET key");
+    event_base_dispatch(base);
+    return 0;
+}

src/common/thirdparty/hiredis/examples/example-libuv.c

@@ -0,0 +1,53 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <signal.h>
+
+#include <hiredis.h>
+#include <async.h>
+#include <adapters/libuv.h>
+
+void getCallback(redisAsyncContext *c, void *r, void *privdata) {
+    redisReply *reply = r;
+    if (reply == NULL) return;
+    printf("argv[%s]: %s\n", (char*)privdata, reply->str);
+
+    /* Disconnect after receiving the reply to GET */
+    redisAsyncDisconnect(c);
+}
+
+void connectCallback(const redisAsyncContext *c, int status) {
+    if (status != REDIS_OK) {
+        printf("Error: %s\n", c->errstr);
+        return;
+    }
+    printf("Connected...\n");
+}
+
+void disconnectCallback(const redisAsyncContext *c, int status) {
+    if (status != REDIS_OK) {
+        printf("Error: %s\n", c->errstr);
+        return;
+    }
+    printf("Disconnected...\n");
+}
+
+int main (int argc, char **argv) {
+    signal(SIGPIPE, SIG_IGN);
+    uv_loop_t* loop = uv_default_loop();
+
+    redisAsyncContext *c = redisAsyncConnect("127.0.0.1", 6379);
+    if (c->err) {
+        /* Let *c leak for now... */
+        printf("Error: %s\n", c->errstr);
+        return 1;
+    }
+
+    redisLibuvAttach(c,loop);
+    redisAsyncSetConnectCallback(c,connectCallback);
+    redisAsyncSetDisconnectCallback(c,disconnectCallback);
+    redisAsyncCommand(c, NULL, NULL, "SET key %b", argv[argc-1], strlen(argv[argc-1]));
+    redisAsyncCommand(c, getCallback, (char*)"end-1", "GET key");
+    uv_run(loop, UV_RUN_DEFAULT);
+    return 0;
+}

src/common/thirdparty/hiredis/examples/example-macosx.c

@@ -0,0 +1,66 @@
+//
+//  Created by Дмитрий Бахвалов on 13.07.15.
+//  Copyright (c) 2015 Dmitry Bakhvalov. All rights reserved.
+//
+
+#include <stdio.h>
+
+#include <hiredis.h>
+#include <async.h>
+#include <adapters/macosx.h>
+
+void getCallback(redisAsyncContext *c, void *r, void *privdata) {
+    redisReply *reply = r;
+    if (reply == NULL) return;
+    printf("argv[%s]: %s\n", (char*)privdata, reply->str);
+
+    /* Disconnect after receiving the reply to GET */
+    redisAsyncDisconnect(c);
+}
+
+void connectCallback(const redisAsyncContext *c, int status) {
+    if (status != REDIS_OK) {
+        printf("Error: %s\n", c->errstr);
+        return;
+    }
+    printf("Connected...\n");
+}
+
+void disconnectCallback(const redisAsyncContext *c, int status) {
+    if (status != REDIS_OK) {
+        printf("Error: %s\n", c->errstr);
+        return;
+    }
+    CFRunLoopStop(CFRunLoopGetCurrent());
+    printf("Disconnected...\n");
+}
+
+int main (int argc, char **argv) {
+    signal(SIGPIPE, SIG_IGN);
+
+    CFRunLoopRef loop = CFRunLoopGetCurrent();
+    if( !loop ) {
+        printf("Error: Cannot get current run loop\n");
+        return 1;
+    }
+
+    redisAsyncContext *c = redisAsyncConnect("127.0.0.1", 6379);
+    if (c->err) {
+        /* Let *c leak for now... */
+        printf("Error: %s\n", c->errstr);
+        return 1;
+    }
+
+    redisMacOSAttach(c, loop);
+
+    redisAsyncSetConnectCallback(c,connectCallback);
+    redisAsyncSetDisconnectCallback(c,disconnectCallback);
+
+    redisAsyncCommand(c, NULL, NULL, "SET key %b", argv[argc-1], strlen(argv[argc-1]));
+    redisAsyncCommand(c, getCallback, (char*)"end-1", "GET key");
+
+    CFRunLoopRun();
+
+    return 0;
+}
+

src/common/thirdparty/hiredis/examples/example-qt.cpp

@@ -0,0 +1,46 @@
+#include <iostream>
+using namespace std;
+
+#include <QCoreApplication>
+#include <QTimer>
+
+#include "example-qt.h"
+
+void getCallback(redisAsyncContext *, void * r, void * privdata) {
+
+    redisReply * reply = static_cast<redisReply *>(r);
+    ExampleQt * ex = static_cast<ExampleQt *>(privdata);
+    if (reply == nullptr || ex == nullptr) return;
+
+    cout << "key: " << reply->str << endl;
+
+    ex->finish();
+}
+
+void ExampleQt::run() {
+
+    m_ctx = redisAsyncConnect("localhost", 6379);
+
+    if (m_ctx->err) {
+        cerr << "Error: " << m_ctx->errstr << endl;
+        redisAsyncFree(m_ctx);
+        emit finished();
+    }
+
+    m_adapter.setContext(m_ctx);
+
+    redisAsyncCommand(m_ctx, NULL, NULL, "SET key %s", m_value);
+    redisAsyncCommand(m_ctx, getCallback, this, "GET key");
+}
+
+int main (int argc, char **argv) {
+
+    QCoreApplication app(argc, argv);
+
+    ExampleQt example(argv[argc-1]);
+
+    QObject::connect(&example, SIGNAL(finished()), &app, SLOT(quit()));
+    QTimer::singleShot(0, &example, SLOT(run()));
+
+    return app.exec();
+}

src/common/thirdparty/hiredis/examples/example-qt.h

@@ -0,0 +1,32 @@
+#ifndef __HIREDIS_EXAMPLE_QT_H
+#define __HIREDIS_EXAMPLE_QT_H
+
+#include <adapters/qt.h>
+
+class ExampleQt : public QObject {
+
+    Q_OBJECT
+
+    public:
+        ExampleQt(const char * value, QObject * parent = 0)
+            : QObject(parent), m_value(value) {}
+
+    signals:
+        void finished();
+
+    public slots:
+        void run();
+
+    private:
+        void finish() { emit finished(); }
+
+    private:
+        const char * m_value;
+        redisAsyncContext * m_ctx;
+        RedisQtAdapter m_adapter;
+
+    friend
+    void getCallback(redisAsyncContext *, void *, void *);
+};
+
+#endif /* !__HIREDIS_EXAMPLE_QT_H */

src/common/thirdparty/hiredis/examples/example.c

@@ -0,0 +1,78 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <hiredis.h>
+
+int main(int argc, char **argv) {
+    unsigned int j;
+    redisContext *c;
+    redisReply *reply;
+    const char *hostname = (argc > 1) ? argv[1] : "127.0.0.1";
+    int port = (argc > 2) ? atoi(argv[2]) : 6379;
+
+    struct timeval timeout = { 1, 500000 }; // 1.5 seconds
+    c = redisConnectWithTimeout(hostname, port, timeout);
+    if (c == NULL || c->err) {
+        if (c) {
+            printf("Connection error: %s\n", c->errstr);
+            redisFree(c);
+        } else {
+            printf("Connection error: can't allocate redis context\n");
+        }
+        exit(1);
+    }
+
+    /* PING server */
+    reply = redisCommand(c,"PING");
+    printf("PING: %s\n", reply->str);
+    freeReplyObject(reply);
+
+    /* Set a key */
+    reply = redisCommand(c,"SET %s %s", "foo", "hello world");
+    printf("SET: %s\n", reply->str);
+    freeReplyObject(reply);
+
+    /* Set a key using binary safe API */
+    reply = redisCommand(c,"SET %b %b", "bar", (size_t) 3, "hello", (size_t) 5);
+    printf("SET (binary API): %s\n", reply->str);
+    freeReplyObject(reply);
+
+    /* Try a GET and two INCR */
+    reply = redisCommand(c,"GET foo");
+    printf("GET foo: %s\n", reply->str);
+    freeReplyObject(reply);
+
+    reply = redisCommand(c,"INCR counter");
+    printf("INCR counter: %lld\n", reply->integer);
+    freeReplyObject(reply);
+    /* again ... */
+    reply = redisCommand(c,"INCR counter");
+    printf("INCR counter: %lld\n", reply->integer);
+    freeReplyObject(reply);
+
+    /* Create a list of numbers, from 0 to 9 */
+    reply = redisCommand(c,"DEL mylist");
+    freeReplyObject(reply);
+    for (j = 0; j < 10; j++) {
+        char buf[64];
+
+        snprintf(buf,64,"%d",j);
+        reply = redisCommand(c,"LPUSH mylist element-%s", buf);
+        freeReplyObject(reply);
+    }
+
+    /* Let's check what we have inside the list */
+    reply = redisCommand(c,"LRANGE mylist 0 -1");
+    if (reply->type == REDIS_REPLY_ARRAY) {
+        for (j = 0; j < reply->elements; j++) {
+            printf("%u) %s\n", j, reply->element[j]->str);
+        }
+    }
+    freeReplyObject(reply);
+
+    /* Disconnects and frees the context */
+    redisFree(c);
+
+    return 0;
+}

src/common/thirdparty/hiredis/fmacros.h

@@ -0,0 +1,21 @@
+#ifndef __HIREDIS_FMACRO_H
+#define __HIREDIS_FMACRO_H
+
+#if defined(__linux__)
+#define _BSD_SOURCE
+#define _DEFAULT_SOURCE
+#endif
+
+#if defined(__sun__)
+#define _POSIX_C_SOURCE 200112L
+#elif defined(__linux__) || defined(__OpenBSD__) || defined(__NetBSD__)
+#define _XOPEN_SOURCE 600
+#else
+#define _XOPEN_SOURCE
+#endif
+
+#if __APPLE__ && __MACH__
+#define _OSX
+#endif
+
+#endif

src/common/thirdparty/hiredis/hiredis.h

@@ -0,0 +1,223 @@
+/*
+ * Copyright (c) 2009-2011, Salvatore Sanfilippo <antirez at gmail dot com>
+ * Copyright (c) 2010-2014, Pieter Noordhuis <pcnoordhuis at gmail dot com>
+ * Copyright (c) 2015, Matt Stancliff <matt at genges dot com>,
+ *                     Jan-Erik Rediger <janerik at fnordig dot com>
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *   * Neither the name of Redis nor the names of its contributors may be used
+ *     to endorse or promote products derived from this software without
+ *     specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __HIREDIS_H
+#define __HIREDIS_H
+#include "read.h"
+#include <stdarg.h> /* for va_list */
+#include <sys/time.h> /* for struct timeval */
+#include <stdint.h> /* uintXX_t, etc */
+#include "sds.h" /* for sds */
+
+#define HIREDIS_MAJOR 0
+#define HIREDIS_MINOR 13
+#define HIREDIS_PATCH 3
+#define HIREDIS_SONAME 0.13
+
+/* Connection type can be blocking or non-blocking and is set in the
+ * least significant bit of the flags field in redisContext. */
+#define REDIS_BLOCK 0x1
+
+/* Connection may be disconnected before being free'd. The second bit
+ * in the flags field is set when the context is connected. */
+#define REDIS_CONNECTED 0x2
+
+/* The async API might try to disconnect cleanly and flush the output
+ * buffer and read all subsequent replies before disconnecting.
+ * This flag means no new commands can come in and the connection
+ * should be terminated once all replies have been read. */
+#define REDIS_DISCONNECTING 0x4
+
+/* Flag specific to the async API which means that the context should be clean
+ * up as soon as possible. */
+#define REDIS_FREEING 0x8
+
+/* Flag that is set when an async callback is executed. */
+#define REDIS_IN_CALLBACK 0x10
+
+/* Flag that is set when the async context has one or more subscriptions. */
+#define REDIS_SUBSCRIBED 0x20
+
+/* Flag that is set when monitor mode is active */
+#define REDIS_MONITORING 0x40
+
+/* Flag that is set when we should set SO_REUSEADDR before calling bind() */
+#define REDIS_REUSEADDR 0x80
+
+#define REDIS_KEEPALIVE_INTERVAL 15 /* seconds */
+
+/* number of times we retry to connect in the case of EADDRNOTAVAIL and
+ * SO_REUSEADDR is being used. */
+#define REDIS_CONNECT_RETRIES  10
+
+/* strerror_r has two completely different prototypes and behaviors
+ * depending on system issues, so we need to operate on the error buffer
+ * differently depending on which strerror_r we're using. */
+#ifndef _GNU_SOURCE
+/* "regular" POSIX strerror_r that does the right thing. */
+#define __redis_strerror_r(errno, buf, len)                                    \
+    do {                                                                       \
+        strerror_r((errno), (buf), (len));                                     \
+    } while (0)
+#else
+/* "bad" GNU strerror_r we need to clean up after. */
+#define __redis_strerror_r(errno, buf, len)                                    \
+    do {                                                                       \
+        char *err_str = strerror_r((errno), (buf), (len));                     \
+        /* If return value _isn't_ the start of the buffer we passed in,       \
+         * then GNU strerror_r returned an internal static buffer and we       \
+         * need to copy the result into our private buffer. */                 \
+        if (err_str != (buf)) {                                                \
+            buf[(len)] = '\0';                                                 \
+            strncat((buf), err_str, ((len) - 1));                              \
+        }                                                                      \
+    } while (0)
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* This is the reply object returned by redisCommand() */
+typedef struct redisReply {
+    int type; /* REDIS_REPLY_* */
+    long long integer; /* The integer when type is REDIS_REPLY_INTEGER */
+    int len; /* Length of string */
+    char *str; /* Used for both REDIS_REPLY_ERROR and REDIS_REPLY_STRING */
+    size_t elements; /* number of elements, for REDIS_REPLY_ARRAY */
+    struct redisReply **element; /* elements vector for REDIS_REPLY_ARRAY */
+} redisReply;
+
+redisReader *redisReaderCreate(void);
+
+/* Function to free the reply objects hiredis returns by default. */
+void freeReplyObject(void *reply);
+
+/* Functions to format a command according to the protocol. */
+int redisvFormatCommand(char **target, const char *format, va_list ap);
+int redisFormatCommand(char **target, const char *format, ...);
+int redisFormatCommandArgv(char **target, int argc, const char **argv, const size_t *argvlen);
+int redisFormatSdsCommandArgv(sds *target, int argc, const char ** argv, const size_t *argvlen);
+void redisFreeCommand(char *cmd);
+void redisFreeSdsCommand(sds cmd);
+
+enum redisConnectionType {
+    REDIS_CONN_TCP,
+    REDIS_CONN_UNIX,
+};
+
+/* Context for a connection to Redis */
+typedef struct redisContext {
+    int err; /* Error flags, 0 when there is no error */
+    char errstr[128]; /* String representation of error when applicable */
+    int fd;
+    int flags;
+    char *obuf; /* Write buffer */
+    redisReader *reader; /* Protocol reader */
+
+    enum redisConnectionType connection_type;
+    struct timeval *timeout;
+
+    struct {
+        char *host;
+        char *source_addr;
+        int port;
+    } tcp;
+
+    struct {
+        char *path;
+    } unix_sock;
+
+} redisContext;
+
+redisContext *redisConnect(const char *ip, int port);
+redisContext *redisConnectWithTimeout(const char *ip, int port, const struct timeval tv);
+redisContext *redisConnectNonBlock(const char *ip, int port);
+redisContext *redisConnectBindNonBlock(const char *ip, int port,
+                                       const char *source_addr);
+redisContext *redisConnectBindNonBlockWithReuse(const char *ip, int port,
+                                                const char *source_addr);
+redisContext *redisConnectUnix(const char *path);
+redisContext *redisConnectUnixWithTimeout(const char *path, const struct timeval tv);
+redisContext *redisConnectUnixNonBlock(const char *path);
+redisContext *redisConnectFd(int fd);
+
+/**
+ * Reconnect the given context using the saved information.
+ *
+ * This re-uses the exact same connect options as in the initial connection.
+ * host, ip (or path), timeout and bind address are reused,
+ * flags are used unmodified from the existing context.
+ *
+ * Returns REDIS_OK on successfull connect or REDIS_ERR otherwise.
+ */
+int redisReconnect(redisContext *c);
+
+int redisSetTimeout(redisContext *c, const struct timeval tv);
+int redisEnableKeepAlive(redisContext *c);
+void redisFree(redisContext *c);
+int redisFreeKeepFd(redisContext *c);
+int redisBufferRead(redisContext *c);
+int redisBufferWrite(redisContext *c, int *done);
+
+/* In a blocking context, this function first checks if there are unconsumed
+ * replies to return and returns one if so. Otherwise, it flushes the output
+ * buffer to the socket and reads until it has a reply. In a non-blocking
+ * context, it will return unconsumed replies until there are no more. */
+int redisGetReply(redisContext *c, void **reply);
+int redisGetReplyFromReader(redisContext *c, void **reply);
+
+/* Write a formatted command to the output buffer. Use these functions in blocking mode
+ * to get a pipeline of commands. */
+int redisAppendFormattedCommand(redisContext *c, const char *cmd, size_t len);
+
+/* Write a command to the output buffer. Use these functions in blocking mode
+ * to get a pipeline of commands. */
+int redisvAppendCommand(redisContext *c, const char *format, va_list ap);
+int redisAppendCommand(redisContext *c, const char *format, ...);
+int redisAppendCommandArgv(redisContext *c, int argc, const char **argv, const size_t *argvlen);
+
+/* Issue a command to Redis. In a blocking context, it is identical to calling
+ * redisAppendCommand, followed by redisGetReply. The function will return
+ * NULL if there was an error in performing the request, otherwise it will
+ * return the reply. In a non-blocking context, it is identical to calling
+ * only redisAppendCommand and will always return NULL. */
+void *redisvCommand(redisContext *c, const char *format, va_list ap);
+void *redisCommand(redisContext *c, const char *format, ...);
+void *redisCommandArgv(redisContext *c, int argc, const char **argv, const size_t *argvlen);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

src/common/thirdparty/hiredis/net.c

@@ -0,0 +1,458 @@
+/* Extracted from anet.c to work properly with Hiredis error reporting.
+ *
+ * Copyright (c) 2009-2011, Salvatore Sanfilippo <antirez at gmail dot com>
+ * Copyright (c) 2010-2014, Pieter Noordhuis <pcnoordhuis at gmail dot com>
+ * Copyright (c) 2015, Matt Stancliff <matt at genges dot com>,
+ *                     Jan-Erik Rediger <janerik at fnordig dot com>
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *   * Neither the name of Redis nor the names of its contributors may be used
+ *     to endorse or promote products derived from this software without
+ *     specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "fmacros.h"
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/select.h>
+#include <sys/un.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <arpa/inet.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+#include <netdb.h>
+#include <errno.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <poll.h>
+#include <limits.h>
+#include <stdlib.h>
+
+#include "net.h"
+#include "sds.h"
+
+/* Defined in hiredis.c */
+void __redisSetError(redisContext *c, int type, const char *str);
+
+static void redisContextCloseFd(redisContext *c) {
+    if (c && c->fd >= 0) {
+        close(c->fd);
+        c->fd = -1;
+    }
+}
+
+static void __redisSetErrorFromErrno(redisContext *c, int type, const char *prefix) {
+    char buf[128] = { 0 };
+    size_t len = 0;
+
+    if (prefix != NULL)
+        len = snprintf(buf,sizeof(buf),"%s: ",prefix);
+    __redis_strerror_r(errno, (char *)(buf + len), sizeof(buf) - len);
+    __redisSetError(c,type,buf);
+}
+
+static int redisSetReuseAddr(redisContext *c) {
+    int on = 1;
+    if (setsockopt(c->fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)) == -1) {
+        __redisSetErrorFromErrno(c,REDIS_ERR_IO,NULL);
+        redisContextCloseFd(c);
+        return REDIS_ERR;
+    }
+    return REDIS_OK;
+}
+
+static int redisCreateSocket(redisContext *c, int type) {
+    int s;
+    if ((s = socket(type, SOCK_STREAM, 0)) == -1) {
+        __redisSetErrorFromErrno(c,REDIS_ERR_IO,NULL);
+        return REDIS_ERR;
+    }
+    c->fd = s;
+    if (type == AF_INET) {
+        if (redisSetReuseAddr(c) == REDIS_ERR) {
+            return REDIS_ERR;
+        }
+    }
+    return REDIS_OK;
+}
+
+static int redisSetBlocking(redisContext *c, int blocking) {
+    int flags;
+
+    /* Set the socket nonblocking.
+     * Note that fcntl(2) for F_GETFL and F_SETFL can't be
+     * interrupted by a signal. */
+    if ((flags = fcntl(c->fd, F_GETFL)) == -1) {
+        __redisSetErrorFromErrno(c,REDIS_ERR_IO,"fcntl(F_GETFL)");
+        redisContextCloseFd(c);
+        return REDIS_ERR;
+    }
+
+    if (blocking)
+        flags &= ~O_NONBLOCK;
+    else
+        flags |= O_NONBLOCK;
+
+    if (fcntl(c->fd, F_SETFL, flags) == -1) {
+        __redisSetErrorFromErrno(c,REDIS_ERR_IO,"fcntl(F_SETFL)");
+        redisContextCloseFd(c);
+        return REDIS_ERR;
+    }
+    return REDIS_OK;
+}
+
+int redisKeepAlive(redisContext *c, int interval) {
+    int val = 1;
+    int fd = c->fd;
+
+    if (setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &val, sizeof(val)) == -1){
+        __redisSetError(c,REDIS_ERR_OTHER,strerror(errno));
+        return REDIS_ERR;
+    }
+
+    val = interval;
+
+#ifdef _OSX
+    if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPALIVE, &val, sizeof(val)) < 0) {
+        __redisSetError(c,REDIS_ERR_OTHER,strerror(errno));
+        return REDIS_ERR;
+    }
+#else
+#if defined(__GLIBC__) && !defined(__FreeBSD_kernel__)
+    val = interval;
+    if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPIDLE, &val, sizeof(val)) < 0) {
+        __redisSetError(c,REDIS_ERR_OTHER,strerror(errno));
+        return REDIS_ERR;
+    }
+
+    val = interval/3;
+    if (val == 0) val = 1;
+    if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPINTVL, &val, sizeof(val)) < 0) {
+        __redisSetError(c,REDIS_ERR_OTHER,strerror(errno));
+        return REDIS_ERR;
+    }
+
+    val = 3;
+    if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPCNT, &val, sizeof(val)) < 0) {
+        __redisSetError(c,REDIS_ERR_OTHER,strerror(errno));
+        return REDIS_ERR;
+    }
+#endif
+#endif
+
+    return REDIS_OK;
+}
+
+static int redisSetTcpNoDelay(redisContext *c) {
+    int yes = 1;
+    if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY, &yes, sizeof(yes)) == -1) {
+        __redisSetErrorFromErrno(c,REDIS_ERR_IO,"setsockopt(TCP_NODELAY)");
+        redisContextCloseFd(c);
+        return REDIS_ERR;
+    }
+    return REDIS_OK;
+}
+
+#define __MAX_MSEC (((LONG_MAX) - 999) / 1000)
+
+static int redisContextWaitReady(redisContext *c, const struct timeval *timeout) {
+    struct pollfd   wfd[1];
+    long msec;
+
+    msec          = -1;
+    wfd[0].fd     = c->fd;
+    wfd[0].events = POLLOUT;
+
+    /* Only use timeout when not NULL. */
+    if (timeout != NULL) {
+        if (timeout->tv_usec > 1000000 || timeout->tv_sec > __MAX_MSEC) {
+            __redisSetErrorFromErrno(c, REDIS_ERR_IO, NULL);
+            redisContextCloseFd(c);
+            return REDIS_ERR;
+        }
+
+        msec = (timeout->tv_sec * 1000) + ((timeout->tv_usec + 999) / 1000);
+
+        if (msec < 0 || msec > INT_MAX) {
+            msec = INT_MAX;
+        }
+    }
+
+    if (errno == EINPROGRESS) {
+        int res;
+
+        if ((res = poll(wfd, 1, msec)) == -1) {
+            __redisSetErrorFromErrno(c, REDIS_ERR_IO, "poll(2)");
+            redisContextCloseFd(c);
+            return REDIS_ERR;
+        } else if (res == 0) {
+            errno = ETIMEDOUT;
+            __redisSetErrorFromErrno(c,REDIS_ERR_IO,NULL);
+            redisContextCloseFd(c);
+            return REDIS_ERR;
+        }
+
+        if (redisCheckSocketError(c) != REDIS_OK)
+            return REDIS_ERR;
+
+        return REDIS_OK;
+    }
+
+    __redisSetErrorFromErrno(c,REDIS_ERR_IO,NULL);
+    redisContextCloseFd(c);
+    return REDIS_ERR;
+}
+
+int redisCheckSocketError(redisContext *c) {
+    int err = 0;
+    socklen_t errlen = sizeof(err);
+
+    if (getsockopt(c->fd, SOL_SOCKET, SO_ERROR, &err, &errlen) == -1) {
+        __redisSetErrorFromErrno(c,REDIS_ERR_IO,"getsockopt(SO_ERROR)");
+        return REDIS_ERR;
+    }
+
+    if (err) {
+        errno = err;
+        __redisSetErrorFromErrno(c,REDIS_ERR_IO,NULL);
+        return REDIS_ERR;
+    }
+
+    return REDIS_OK;
+}
+
+int redisContextSetTimeout(redisContext *c, const struct timeval tv) {
+    if (setsockopt(c->fd,SOL_SOCKET,SO_RCVTIMEO,&tv,sizeof(tv)) == -1) {
+        __redisSetErrorFromErrno(c,REDIS_ERR_IO,"setsockopt(SO_RCVTIMEO)");
+        return REDIS_ERR;
+    }
+    if (setsockopt(c->fd,SOL_SOCKET,SO_SNDTIMEO,&tv,sizeof(tv)) == -1) {
+        __redisSetErrorFromErrno(c,REDIS_ERR_IO,"setsockopt(SO_SNDTIMEO)");
+        return REDIS_ERR;
+    }
+    return REDIS_OK;
+}
+
+static int _redisContextConnectTcp(redisContext *c, const char *addr, int port,
+                                   const struct timeval *timeout,
+                                   const char *source_addr) {
+    int s, rv, n;
+    char _port[6];  /* strlen("65535"); */
+    struct addrinfo hints, *servinfo, *bservinfo, *p, *b;
+    int blocking = (c->flags & REDIS_BLOCK);
+    int reuseaddr = (c->flags & REDIS_REUSEADDR);
+    int reuses = 0;
+
+    c->connection_type = REDIS_CONN_TCP;
+    c->tcp.port = port;
+
+    /* We need to take possession of the passed parameters
+     * to make them reusable for a reconnect.
+     * We also carefully check we don't free data we already own,
+     * as in the case of the reconnect method.
+     *
+     * This is a bit ugly, but atleast it works and doesn't leak memory.
+     **/
+    if (c->tcp.host != addr) {
+        if (c->tcp.host)
+            free(c->tcp.host);
+
+        c->tcp.host = strdup(addr);
+    }
+
+    if (timeout) {
+        if (c->timeout != timeout) {
+            if (c->timeout == NULL)
+                c->timeout = malloc(sizeof(struct timeval));
+
+            memcpy(c->timeout, timeout, sizeof(struct timeval));
+        }
+    } else {
+        if (c->timeout)
+            free(c->timeout);
+        c->timeout = NULL;
+    }
+
+    if (source_addr == NULL) {
+        free(c->tcp.source_addr);
+        c->tcp.source_addr = NULL;
+    } else if (c->tcp.source_addr != source_addr) {
+        free(c->tcp.source_addr);
+        c->tcp.source_addr = strdup(source_addr);
+    }
+
+    snprintf(_port, 6, "%d", port);
+    memset(&hints,0,sizeof(hints));
+    hints.ai_family = AF_INET;
+    hints.ai_socktype = SOCK_STREAM;
+
+    /* Try with IPv6 if no IPv4 address was found. We do it in this order since
+     * in a Redis client you can't afford to test if you have IPv6 connectivity
+     * as this would add latency to every connect. Otherwise a more sensible
+     * route could be: Use IPv6 if both addresses are available and there is IPv6
+     * connectivity. */
+    if ((rv = getaddrinfo(c->tcp.host,_port,&hints,&servinfo)) != 0) {
+         hints.ai_family = AF_INET6;
+         if ((rv = getaddrinfo(addr,_port,&hints,&servinfo)) != 0) {
+            __redisSetError(c,REDIS_ERR_OTHER,gai_strerror(rv));
+            return REDIS_ERR;
+        }
+    }
+    for (p = servinfo; p != NULL; p = p->ai_next) {
+addrretry:
+        if ((s = socket(p->ai_family,p->ai_socktype,p->ai_protocol)) == -1)
+            continue;
+
+        c->fd = s;
+        if (redisSetBlocking(c,0) != REDIS_OK)
+            goto error;
+        if (c->tcp.source_addr) {
+            int bound = 0;
+            /* Using getaddrinfo saves us from self-determining IPv4 vs IPv6 */
+            if ((rv = getaddrinfo(c->tcp.source_addr, NULL, &hints, &bservinfo)) != 0) {
+                char buf[128];
+                snprintf(buf,sizeof(buf),"Can't get addr: %s",gai_strerror(rv));
+                __redisSetError(c,REDIS_ERR_OTHER,buf);
+                goto error;
+            }
+
+            if (reuseaddr) {
+                n = 1;
+                if (setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (char*) &n,
+                               sizeof(n)) < 0) {
+                    goto error;
+                }
+            }
+
+            for (b = bservinfo; b != NULL; b = b->ai_next) {
+                if (bind(s,b->ai_addr,b->ai_addrlen) != -1) {
+                    bound = 1;
+                    break;
+                }
+            }
+            freeaddrinfo(bservinfo);
+            if (!bound) {
+                char buf[128];
+                snprintf(buf,sizeof(buf),"Can't bind socket: %s",strerror(errno));
+                __redisSetError(c,REDIS_ERR_OTHER,buf);
+                goto error;
+            }
+        }
+        if (connect(s,p->ai_addr,p->ai_addrlen) == -1) {
+            if (errno == EHOSTUNREACH) {
+                redisContextCloseFd(c);
+                continue;
+            } else if (errno == EINPROGRESS && !blocking) {
+                /* This is ok. */
+            } else if (errno == EADDRNOTAVAIL && reuseaddr) {
+                if (++reuses >= REDIS_CONNECT_RETRIES) {
+                    goto error;
+                } else {
+                    goto addrretry;
+                }
+            } else {
+                if (redisContextWaitReady(c,c->timeout) != REDIS_OK)
+                    goto error;
+            }
+        }
+        if (blocking && redisSetBlocking(c,1) != REDIS_OK)
+            goto error;
+        if (redisSetTcpNoDelay(c) != REDIS_OK)
+            goto error;
+
+        c->flags |= REDIS_CONNECTED;
+        rv = REDIS_OK;
+        goto end;
+    }
+    if (p == NULL) {
+        char buf[128];
+        snprintf(buf,sizeof(buf),"Can't create socket: %s",strerror(errno));
+        __redisSetError(c,REDIS_ERR_OTHER,buf);
+        goto error;
+    }
+
+error:
+    rv = REDIS_ERR;
+end:
+    freeaddrinfo(servinfo);
+    return rv;  // Need to return REDIS_OK if alright
+}
+
+int redisContextConnectTcp(redisContext *c, const char *addr, int port,
+                           const struct timeval *timeout) {
+    return _redisContextConnectTcp(c, addr, port, timeout, NULL);
+}
+
+int redisContextConnectBindTcp(redisContext *c, const char *addr, int port,
+                               const struct timeval *timeout,
+                               const char *source_addr) {
+    return _redisContextConnectTcp(c, addr, port, timeout, source_addr);
+}
+
+int redisContextConnectUnix(redisContext *c, const char *path, const struct timeval *timeout) {
+    int blocking = (c->flags & REDIS_BLOCK);
+    struct sockaddr_un sa;
+
+    if (redisCreateSocket(c,AF_LOCAL) < 0)
+        return REDIS_ERR;
+    if (redisSetBlocking(c,0) != REDIS_OK)
+        return REDIS_ERR;
+
+    c->connection_type = REDIS_CONN_UNIX;
+    if (c->unix_sock.path != path)
+        c->unix_sock.path = strdup(path);
+
+    if (timeout) {
+        if (c->timeout != timeout) {
+            if (c->timeout == NULL)
+                c->timeout = malloc(sizeof(struct timeval));
+
+            memcpy(c->timeout, timeout, sizeof(struct timeval));
+        }
+    } else {
+        if (c->timeout)
+            free(c->timeout);
+        c->timeout = NULL;
+    }
+
+    sa.sun_family = AF_LOCAL;
+    strncpy(sa.sun_path,path,sizeof(sa.sun_path)-1);
+    if (connect(c->fd, (struct sockaddr*)&sa, sizeof(sa)) == -1) {
+        if (errno == EINPROGRESS && !blocking) {
+            /* This is ok. */
+        } else {
+            if (redisContextWaitReady(c,c->timeout) != REDIS_OK)
+                return REDIS_ERR;
+        }
+    }
+
+    /* Reset socket to be blocking after connect(2). */
+    if (blocking && redisSetBlocking(c,1) != REDIS_OK)
+        return REDIS_ERR;
+
+    c->flags |= REDIS_CONNECTED;
+    return REDIS_OK;
+}

src/common/thirdparty/hiredis/net.h

@@ -0,0 +1,53 @@
+/* Extracted from anet.c to work properly with Hiredis error reporting.
+ *
+ * Copyright (c) 2009-2011, Salvatore Sanfilippo <antirez at gmail dot com>
+ * Copyright (c) 2010-2014, Pieter Noordhuis <pcnoordhuis at gmail dot com>
+ * Copyright (c) 2015, Matt Stancliff <matt at genges dot com>,
+ *                     Jan-Erik Rediger <janerik at fnordig dot com>
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *   * Neither the name of Redis nor the names of its contributors may be used
+ *     to endorse or promote products derived from this software without
+ *     specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __NET_H
+#define __NET_H
+
+#include "hiredis.h"
+
+#if defined(__sun)
+#define AF_LOCAL AF_UNIX
+#endif
+
+int redisCheckSocketError(redisContext *c);
+int redisContextSetTimeout(redisContext *c, const struct timeval tv);
+int redisContextConnectTcp(redisContext *c, const char *addr, int port, const struct timeval *timeout);
+int redisContextConnectBindTcp(redisContext *c, const char *addr, int port,
+                               const struct timeval *timeout,
+                               const char *source_addr);
+int redisContextConnectUnix(redisContext *c, const char *path, const struct timeval *timeout);
+int redisKeepAlive(redisContext *c, int interval);
+
+#endif

src/common/thirdparty/hiredis/read.c

@@ -0,0 +1,525 @@
+/*
+ * Copyright (c) 2009-2011, Salvatore Sanfilippo <antirez at gmail dot com>
+ * Copyright (c) 2010-2011, Pieter Noordhuis <pcnoordhuis at gmail dot com>
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *   * Neither the name of Redis nor the names of its contributors may be used
+ *     to endorse or promote products derived from this software without
+ *     specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+
+#include "fmacros.h"
+#include <string.h>
+#include <stdlib.h>
+#ifndef _MSC_VER
+#include <unistd.h>
+#endif
+#include <assert.h>
+#include <errno.h>
+#include <ctype.h>
+
+#include "read.h"
+#include "sds.h"
+
+static void __redisReaderSetError(redisReader *r, int type, const char *str) {
+    size_t len;
+
+    if (r->reply != NULL && r->fn && r->fn->freeObject) {
+        r->fn->freeObject(r->reply);
+        r->reply = NULL;
+    }
+
+    /* Clear input buffer on errors. */
+    if (r->buf != NULL) {
+        sdsfree(r->buf);
+        r->buf = NULL;
+        r->pos = r->len = 0;
+    }
+
+    /* Reset task stack. */
+    r->ridx = -1;
+
+    /* Set error. */
+    r->err = type;
+    len = strlen(str);
+    len = len < (sizeof(r->errstr)-1) ? len : (sizeof(r->errstr)-1);
+    memcpy(r->errstr,str,len);
+    r->errstr[len] = '\0';
+}
+
+static size_t chrtos(char *buf, size_t size, char byte) {
+    size_t len = 0;
+
+    switch(byte) {
+    case '\\':
+    case '"':
+        len = snprintf(buf,size,"\"\\%c\"",byte);
+        break;
+    case '\n': len = snprintf(buf,size,"\"\\n\""); break;
+    case '\r': len = snprintf(buf,size,"\"\\r\""); break;
+    case '\t': len = snprintf(buf,size,"\"\\t\""); break;
+    case '\a': len = snprintf(buf,size,"\"\\a\""); break;
+    case '\b': len = snprintf(buf,size,"\"\\b\""); break;
+    default:
+        if (isprint(byte))
+            len = snprintf(buf,size,"\"%c\"",byte);
+        else
+            len = snprintf(buf,size,"\"\\x%02x\"",(unsigned char)byte);
+        break;
+    }
+
+    return len;
+}
+
+static void __redisReaderSetErrorProtocolByte(redisReader *r, char byte) {
+    char cbuf[8], sbuf[128];
+
+    chrtos(cbuf,sizeof(cbuf),byte);
+    snprintf(sbuf,sizeof(sbuf),
+        "Protocol error, got %s as reply type byte", cbuf);
+    __redisReaderSetError(r,REDIS_ERR_PROTOCOL,sbuf);
+}
+
+static void __redisReaderSetErrorOOM(redisReader *r) {
+    __redisReaderSetError(r,REDIS_ERR_OOM,"Out of memory");
+}
+
+static char *readBytes(redisReader *r, unsigned int bytes) {
+    char *p;
+    if (r->len-r->pos >= bytes) {
+        p = r->buf+r->pos;
+        r->pos += bytes;
+        return p;
+    }
+    return NULL;
+}
+
+/* Find pointer to \r\n. */
+static char *seekNewline(char *s, size_t len) {
+    int pos = 0;
+    int _len = len-1;
+
+    /* Position should be < len-1 because the character at "pos" should be
+     * followed by a \n. Note that strchr cannot be used because it doesn't
+     * allow to search a limited length and the buffer that is being searched
+     * might not have a trailing NULL character. */
+    while (pos < _len) {
+        while(pos < _len && s[pos] != '\r') pos++;
+        if (s[pos] != '\r') {
+            /* Not found. */
+            return NULL;
+        } else {
+            if (s[pos+1] == '\n') {
+                /* Found. */
+                return s+pos;
+            } else {
+                /* Continue searching. */
+                pos++;
+            }
+        }
+    }
+    return NULL;
+}
+
+/* Read a long long value starting at *s, under the assumption that it will be
+ * terminated by \r\n. Ambiguously returns -1 for unexpected input. */
+static long long readLongLong(char *s) {
+    long long v = 0;
+    int dec, mult = 1;
+    char c;
+
+    if (*s == '-') {
+        mult = -1;
+        s++;
+    } else if (*s == '+') {
+        mult = 1;
+        s++;
+    }
+
+    while ((c = *(s++)) != '\r') {
+        dec = c - '0';
+        if (dec >= 0 && dec < 10) {
+            v *= 10;
+            v += dec;
+        } else {
+            /* Should not happen... */
+            return -1;
+        }
+    }
+
+    return mult*v;
+}
+
+static char *readLine(redisReader *r, int *_len) {
+    char *p, *s;
+    int len;
+
+    p = r->buf+r->pos;
+    s = seekNewline(p,(r->len-r->pos));
+    if (s != NULL) {
+        len = s-(r->buf+r->pos);
+        r->pos += len+2; /* skip \r\n */
+        if (_len) *_len = len;
+        return p;
+    }
+    return NULL;
+}
+
+static void moveToNextTask(redisReader *r) {
+    redisReadTask *cur, *prv;
+    while (r->ridx >= 0) {
+        /* Return a.s.a.p. when the stack is now empty. */
+        if (r->ridx == 0) {
+            r->ridx--;
+            return;
+        }
+
+        cur = &(r->rstack[r->ridx]);
+        prv = &(r->rstack[r->ridx-1]);
+        assert(prv->type == REDIS_REPLY_ARRAY);
+        if (cur->idx == prv->elements-1) {
+            r->ridx--;
+        } else {
+            /* Reset the type because the next item can be anything */
+            assert(cur->idx < prv->elements);
+            cur->type = -1;
+            cur->elements = -1;
+            cur->idx++;
+            return;
+        }
+    }
+}
+
+static int processLineItem(redisReader *r) {
+    redisReadTask *cur = &(r->rstack[r->ridx]);
+    void *obj;
+    char *p;
+    int len;
+
+    if ((p = readLine(r,&len)) != NULL) {
+        if (cur->type == REDIS_REPLY_INTEGER) {
+            if (r->fn && r->fn->createInteger)
+                obj = r->fn->createInteger(cur,readLongLong(p));
+            else
+                obj = (void*)REDIS_REPLY_INTEGER;
+        } else {
+            /* Type will be error or status. */
+            if (r->fn && r->fn->createString)
+                obj = r->fn->createString(cur,p,len);
+            else
+                obj = (void*)(size_t)(cur->type);
+        }
+
+        if (obj == NULL) {
+            __redisReaderSetErrorOOM(r);
+            return REDIS_ERR;
+        }
+
+        /* Set reply if this is the root object. */
+        if (r->ridx == 0) r->reply = obj;
+        moveToNextTask(r);
+        return REDIS_OK;
+    }
+
+    return REDIS_ERR;
+}
+
+static int processBulkItem(redisReader *r) {
+    redisReadTask *cur = &(r->rstack[r->ridx]);
+    void *obj = NULL;
+    char *p, *s;
+    long len;
+    unsigned long bytelen;
+    int success = 0;
+
+    p = r->buf+r->pos;
+    s = seekNewline(p,r->len-r->pos);
+    if (s != NULL) {
+        p = r->buf+r->pos;
+        bytelen = s-(r->buf+r->pos)+2; /* include \r\n */
+        len = readLongLong(p);
+
+        if (len < 0) {
+            /* The nil object can always be created. */
+            if (r->fn && r->fn->createNil)
+                obj = r->fn->createNil(cur);
+            else
+                obj = (void*)REDIS_REPLY_NIL;
+            success = 1;
+        } else {
+            /* Only continue when the buffer contains the entire bulk item. */
+            bytelen += len+2; /* include \r\n */
+            if (r->pos+bytelen <= r->len) {
+                if (r->fn && r->fn->createString)
+                    obj = r->fn->createString(cur,s+2,len);
+                else
+                    obj = (void*)REDIS_REPLY_STRING;
+                success = 1;
+            }
+        }
+
+        /* Proceed when obj was created. */
+        if (success) {
+            if (obj == NULL) {
+                __redisReaderSetErrorOOM(r);
+                return REDIS_ERR;
+            }
+
+            r->pos += bytelen;
+
+            /* Set reply if this is the root object. */
+            if (r->ridx == 0) r->reply = obj;
+            moveToNextTask(r);
+            return REDIS_OK;
+        }
+    }
+
+    return REDIS_ERR;
+}
+
+static int processMultiBulkItem(redisReader *r) {
+    redisReadTask *cur = &(r->rstack[r->ridx]);
+    void *obj;
+    char *p;
+    long elements;
+    int root = 0;
+
+    /* Set error for nested multi bulks with depth > 7 */
+    if (r->ridx == 8) {
+        __redisReaderSetError(r,REDIS_ERR_PROTOCOL,
+            "No support for nested multi bulk replies with depth > 7");
+        return REDIS_ERR;
+    }
+
+    if ((p = readLine(r,NULL)) != NULL) {
+        elements = readLongLong(p);
+        root = (r->ridx == 0);
+
+        if (elements == -1) {
+            if (r->fn && r->fn->createNil)
+                obj = r->fn->createNil(cur);
+            else
+                obj = (void*)REDIS_REPLY_NIL;
+
+            if (obj == NULL) {
+                __redisReaderSetErrorOOM(r);
+                return REDIS_ERR;
+            }
+
+            moveToNextTask(r);
+        } else {
+            if (r->fn && r->fn->createArray)
+                obj = r->fn->createArray(cur,elements);
+            else
+                obj = (void*)REDIS_REPLY_ARRAY;
+
+            if (obj == NULL) {
+                __redisReaderSetErrorOOM(r);
+                return REDIS_ERR;
+            }
+
+            /* Modify task stack when there are more than 0 elements. */
+            if (elements > 0) {
+                cur->elements = elements;
+                cur->obj = obj;
+                r->ridx++;
+                r->rstack[r->ridx].type = -1;
+                r->rstack[r->ridx].elements = -1;
+                r->rstack[r->ridx].idx = 0;
+                r->rstack[r->ridx].obj = NULL;
+                r->rstack[r->ridx].parent = cur;
+                r->rstack[r->ridx].privdata = r->privdata;
+            } else {
+                moveToNextTask(r);
+            }
+        }
+
+        /* Set reply if this is the root object. */
+        if (root) r->reply = obj;
+        return REDIS_OK;
+    }
+
+    return REDIS_ERR;
+}
+
+static int processItem(redisReader *r) {
+    redisReadTask *cur = &(r->rstack[r->ridx]);
+    char *p;
+
+    /* check if we need to read type */
+    if (cur->type < 0) {
+        if ((p = readBytes(r,1)) != NULL) {
+            switch (p[0]) {
+            case '-':
+                cur->type = REDIS_REPLY_ERROR;
+                break;
+            case '+':
+                cur->type = REDIS_REPLY_STATUS;
+                break;
+            case ':':
+                cur->type = REDIS_REPLY_INTEGER;
+                break;
+            case '$':
+                cur->type = REDIS_REPLY_STRING;
+                break;
+            case '*':
+                cur->type = REDIS_REPLY_ARRAY;
+                break;
+            default:
+                __redisReaderSetErrorProtocolByte(r,*p);
+                return REDIS_ERR;
+            }
+        } else {
+            /* could not consume 1 byte */
+            return REDIS_ERR;
+        }
+    }
+
+    /* process typed item */
+    switch(cur->type) {
+    case REDIS_REPLY_ERROR:
+    case REDIS_REPLY_STATUS:
+    case REDIS_REPLY_INTEGER:
+        return processLineItem(r);
+    case REDIS_REPLY_STRING:
+        return processBulkItem(r);
+    case REDIS_REPLY_ARRAY:
+        return processMultiBulkItem(r);
+    default:
+        assert(NULL);
+        return REDIS_ERR; /* Avoid warning. */
+    }
+}
+
+redisReader *redisReaderCreateWithFunctions(redisReplyObjectFunctions *fn) {
+    redisReader *r;
+
+    r = calloc(sizeof(redisReader),1);
+    if (r == NULL)
+        return NULL;
+
+    r->err = 0;
+    r->errstr[0] = '\0';
+    r->fn = fn;
+    r->buf = sdsempty();
+    r->maxbuf = REDIS_READER_MAX_BUF;
+    if (r->buf == NULL) {
+        free(r);
+        return NULL;
+    }
+
+    r->ridx = -1;
+    return r;
+}
+
+void redisReaderFree(redisReader *r) {
+    if (r->reply != NULL && r->fn && r->fn->freeObject)
+        r->fn->freeObject(r->reply);
+    if (r->buf != NULL)
+        sdsfree(r->buf);
+    free(r);
+}
+
+int redisReaderFeed(redisReader *r, const char *buf, size_t len) {
+    sds newbuf;
+
+    /* Return early when this reader is in an erroneous state. */
+    if (r->err)
+        return REDIS_ERR;
+
+    /* Copy the provided buffer. */
+    if (buf != NULL && len >= 1) {
+        /* Destroy internal buffer when it is empty and is quite large. */
+        if (r->len == 0 && r->maxbuf != 0 && sdsavail(r->buf) > r->maxbuf) {
+            sdsfree(r->buf);
+            r->buf = sdsempty();
+            r->pos = 0;
+
+            /* r->buf should not be NULL since we just free'd a larger one. */
+            assert(r->buf != NULL);
+        }
+
+        newbuf = sdscatlen(r->buf,buf,len);
+        if (newbuf == NULL) {
+            __redisReaderSetErrorOOM(r);
+            return REDIS_ERR;
+        }
+
+        r->buf = newbuf;
+        r->len = sdslen(r->buf);
+    }
+
+    return REDIS_OK;
+}
+
+int redisReaderGetReply(redisReader *r, void **reply) {
+    /* Default target pointer to NULL. */
+    if (reply != NULL)
+        *reply = NULL;
+
+    /* Return early when this reader is in an erroneous state. */
+    if (r->err)
+        return REDIS_ERR;
+
+    /* When the buffer is empty, there will never be a reply. */
+    if (r->len == 0)
+        return REDIS_OK;
+
+    /* Set first item to process when the stack is empty. */
+    if (r->ridx == -1) {
+        r->rstack[0].type = -1;
+        r->rstack[0].elements = -1;
+        r->rstack[0].idx = -1;
+        r->rstack[0].obj = NULL;
+        r->rstack[0].parent = NULL;
+        r->rstack[0].privdata = r->privdata;
+        r->ridx = 0;
+    }
+
+    /* Process items in reply. */
+    while (r->ridx >= 0)
+        if (processItem(r) != REDIS_OK)
+            break;
+
+    /* Return ASAP when an error occurred. */
+    if (r->err)
+        return REDIS_ERR;
+
+    /* Discard part of the buffer when we've consumed at least 1k, to avoid
+     * doing unnecessary calls to memmove() in sds.c. */
+    if (r->pos >= 1024) {
+        sdsrange(r->buf,r->pos,-1);
+        r->pos = 0;
+        r->len = sdslen(r->buf);
+    }
+
+    /* Emit a reply when there is one. */
+    if (r->ridx == -1) {
+        if (reply != NULL)
+            *reply = r->reply;
+        r->reply = NULL;
+    }
+    return REDIS_OK;
+}

src/common/thirdparty/hiredis/read.h

@@ -0,0 +1,116 @@
+/*
+ * Copyright (c) 2009-2011, Salvatore Sanfilippo <antirez at gmail dot com>
+ * Copyright (c) 2010-2011, Pieter Noordhuis <pcnoordhuis at gmail dot com>
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *   * Neither the name of Redis nor the names of its contributors may be used
+ *     to endorse or promote products derived from this software without
+ *     specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+
+#ifndef __HIREDIS_READ_H
+#define __HIREDIS_READ_H
+#include <stdio.h> /* for size_t */
+
+#define REDIS_ERR -1
+#define REDIS_OK 0
+
+/* When an error occurs, the err flag in a context is set to hold the type of
+ * error that occured. REDIS_ERR_IO means there was an I/O error and you
+ * should use the "errno" variable to find out what is wrong.
+ * For other values, the "errstr" field will hold a description. */
+#define REDIS_ERR_IO 1 /* Error in read or write */
+#define REDIS_ERR_EOF 3 /* End of file */
+#define REDIS_ERR_PROTOCOL 4 /* Protocol error */
+#define REDIS_ERR_OOM 5 /* Out of memory */
+#define REDIS_ERR_OTHER 2 /* Everything else... */
+
+#define REDIS_REPLY_STRING 1
+#define REDIS_REPLY_ARRAY 2
+#define REDIS_REPLY_INTEGER 3
+#define REDIS_REPLY_NIL 4
+#define REDIS_REPLY_STATUS 5
+#define REDIS_REPLY_ERROR 6
+
+#define REDIS_READER_MAX_BUF (1024*16)  /* Default max unused reader buffer. */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct redisReadTask {
+    int type;
+    int elements; /* number of elements in multibulk container */
+    int idx; /* index in parent (array) object */
+    void *obj; /* holds user-generated value for a read task */
+    struct redisReadTask *parent; /* parent task */
+    void *privdata; /* user-settable arbitrary field */
+} redisReadTask;
+
+typedef struct redisReplyObjectFunctions {
+    void *(*createString)(const redisReadTask*, char*, size_t);
+    void *(*createArray)(const redisReadTask*, int);
+    void *(*createInteger)(const redisReadTask*, long long);
+    void *(*createNil)(const redisReadTask*);
+    void (*freeObject)(void*);
+} redisReplyObjectFunctions;
+
+typedef struct redisReader {
+    int err; /* Error flags, 0 when there is no error */
+    char errstr[128]; /* String representation of error when applicable */
+
+    char *buf; /* Read buffer */
+    size_t pos; /* Buffer cursor */
+    size_t len; /* Buffer length */
+    size_t maxbuf; /* Max length of unused buffer */
+
+    redisReadTask rstack[9];
+    int ridx; /* Index of current read task */
+    void *reply; /* Temporary reply pointer */
+
+    redisReplyObjectFunctions *fn;
+    void *privdata;
+} redisReader;
+
+/* Public API for the protocol parser. */
+redisReader *redisReaderCreateWithFunctions(redisReplyObjectFunctions *fn);
+void redisReaderFree(redisReader *r);
+int redisReaderFeed(redisReader *r, const char *buf, size_t len);
+int redisReaderGetReply(redisReader *r, void **reply);
+
+/* Backwards compatibility, can be removed on big version bump. */
+#define redisReplyReaderCreate redisReaderCreate
+#define redisReplyReaderFree redisReaderFree
+#define redisReplyReaderFeed redisReaderFeed
+#define redisReplyReaderGetReply redisReaderGetReply
+#define redisReplyReaderSetPrivdata(_r, _p) (int)(((redisReader*)(_r))->privdata = (_p))
+#define redisReplyReaderGetObject(_r) (((redisReader*)(_r))->reply)
+#define redisReplyReaderGetError(_r) (((redisReader*)(_r))->errstr)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

src/common/thirdparty/hiredis/sds.h

@@ -0,0 +1,105 @@
+/* SDS (Simple Dynamic Strings), A C dynamic strings library.
+ *
+ * Copyright (c) 2006-2014, Salvatore Sanfilippo <antirez at gmail dot com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *   * Neither the name of Redis nor the names of its contributors may be used
+ *     to endorse or promote products derived from this software without
+ *     specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __SDS_H
+#define __SDS_H
+
+#define SDS_MAX_PREALLOC (1024*1024)
+
+#include <sys/types.h>
+#include <stdarg.h>
+#ifdef _MSC_VER
+#include "win32.h"
+#endif
+
+typedef char *sds;
+
+struct sdshdr {
+    int len;
+    int free;
+    char buf[];
+};
+
+static inline size_t sdslen(const sds s) {
+    struct sdshdr *sh = (struct sdshdr *)(s-sizeof *sh);
+    return sh->len;
+}
+
+static inline size_t sdsavail(const sds s) {
+    struct sdshdr *sh = (struct sdshdr *)(s-sizeof *sh);
+    return sh->free;
+}
+
+sds sdsnewlen(const void *init, size_t initlen);
+sds sdsnew(const char *init);
+sds sdsempty(void);
+size_t sdslen(const sds s);
+sds sdsdup(const sds s);
+void sdsfree(sds s);
+size_t sdsavail(const sds s);
+sds sdsgrowzero(sds s, size_t len);
+sds sdscatlen(sds s, const void *t, size_t len);
+sds sdscat(sds s, const char *t);
+sds sdscatsds(sds s, const sds t);
+sds sdscpylen(sds s, const char *t, size_t len);
+sds sdscpy(sds s, const char *t);
+
+sds sdscatvprintf(sds s, const char *fmt, va_list ap);
+#ifdef __GNUC__
+sds sdscatprintf(sds s, const char *fmt, ...)
+    __attribute__((format(printf, 2, 3)));
+#else
+sds sdscatprintf(sds s, const char *fmt, ...);
+#endif
+
+sds sdscatfmt(sds s, char const *fmt, ...);
+void sdstrim(sds s, const char *cset);
+void sdsrange(sds s, int start, int end);
+void sdsupdatelen(sds s);
+void sdsclear(sds s);
+int sdscmp(const sds s1, const sds s2);
+sds *sdssplitlen(const char *s, int len, const char *sep, int seplen, int *count);
+void sdsfreesplitres(sds *tokens, int count);
+void sdstolower(sds s);
+void sdstoupper(sds s);
+sds sdsfromlonglong(long long value);
+sds sdscatrepr(sds s, const char *p, size_t len);
+sds *sdssplitargs(const char *line, int *argc);
+sds sdsmapchars(sds s, const char *from, const char *to, size_t setlen);
+sds sdsjoin(char **argv, int argc, char *sep, size_t seplen);
+sds sdsjoinsds(sds *argv, int argc, const char *sep, size_t seplen);
+
+/* Low level functions exposed to the user API */
+sds sdsMakeRoomFor(sds s, size_t addlen);
+void sdsIncrLen(sds s, int incr);
+sds sdsRemoveFreeSpace(sds s);
+size_t sdsAllocSize(sds s);
+
+#endif

src/common/thirdparty/hiredis/test.c

@@ -0,0 +1,807 @@
+#include "fmacros.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <strings.h>
+#include <sys/time.h>
+#include <assert.h>
+#include <unistd.h>
+#include <signal.h>
+#include <errno.h>
+#include <limits.h>
+
+#include "hiredis.h"
+#include "net.h"
+
+enum connection_type {
+    CONN_TCP,
+    CONN_UNIX,
+    CONN_FD
+};
+
+struct config {
+    enum connection_type type;
+
+    struct {
+        const char *host;
+        int port;
+        struct timeval timeout;
+    } tcp;
+
+    struct {
+        const char *path;
+    } unix;
+};
+
+/* The following lines make up our testing "framework" :) */
+static int tests = 0, fails = 0;
+#define test(_s) { printf("#%02d ", ++tests); printf(_s); }
+#define test_cond(_c) if(_c) printf("\033[0;32mPASSED\033[0;0m\n"); else {printf("\033[0;31mFAILED\033[0;0m\n"); fails++;}
+
+static long long usec(void) {
+    struct timeval tv;
+    gettimeofday(&tv,NULL);
+    return (((long long)tv.tv_sec)*1000000)+tv.tv_usec;
+}
+
+/* The assert() calls below have side effects, so we need assert()
+ * even if we are compiling without asserts (-DNDEBUG). */
+#ifdef NDEBUG
+#undef assert
+#define assert(e) (void)(e)
+#endif
+
+static redisContext *select_database(redisContext *c) {
+    redisReply *reply;
+
+    /* Switch to DB 9 for testing, now that we know we can chat. */
+    reply = redisCommand(c,"SELECT 9");
+    assert(reply != NULL);
+    freeReplyObject(reply);
+
+    /* Make sure the DB is emtpy */
+    reply = redisCommand(c,"DBSIZE");
+    assert(reply != NULL);
+    if (reply->type == REDIS_REPLY_INTEGER && reply->integer == 0) {
+        /* Awesome, DB 9 is empty and we can continue. */
+        freeReplyObject(reply);
+    } else {
+        printf("Database #9 is not empty, test can not continue\n");
+        exit(1);
+    }
+
+    return c;
+}
+
+static int disconnect(redisContext *c, int keep_fd) {
+    redisReply *reply;
+
+    /* Make sure we're on DB 9. */
+    reply = redisCommand(c,"SELECT 9");
+    assert(reply != NULL);
+    freeReplyObject(reply);
+    reply = redisCommand(c,"FLUSHDB");
+    assert(reply != NULL);
+    freeReplyObject(reply);
+
+    /* Free the context as well, but keep the fd if requested. */
+    if (keep_fd)
+        return redisFreeKeepFd(c);
+    redisFree(c);
+    return -1;
+}
+
+static redisContext *connect(struct config config) {
+    redisContext *c = NULL;
+
+    if (config.type == CONN_TCP) {
+        c = redisConnect(config.tcp.host, config.tcp.port);
+    } else if (config.type == CONN_UNIX) {
+        c = redisConnectUnix(config.unix.path);
+    } else if (config.type == CONN_FD) {
+        /* Create a dummy connection just to get an fd to inherit */
+        redisContext *dummy_ctx = redisConnectUnix(config.unix.path);
+        if (dummy_ctx) {
+            int fd = disconnect(dummy_ctx, 1);
+            printf("Connecting to inherited fd %d\n", fd);
+            c = redisConnectFd(fd);
+        }
+    } else {
+        assert(NULL);
+    }
+
+    if (c == NULL) {
+        printf("Connection error: can't allocate redis context\n");
+        exit(1);
+    } else if (c->err) {
+        printf("Connection error: %s\n", c->errstr);
+        redisFree(c);
+        exit(1);
+    }
+
+    return select_database(c);
+}
+
+static void test_format_commands(void) {
+    char *cmd;
+    int len;
+
+    test("Format command without interpolation: ");
+    len = redisFormatCommand(&cmd,"SET foo bar");
+    test_cond(strncmp(cmd,"*3\r\n$3\r\nSET\r\n$3\r\nfoo\r\n$3\r\nbar\r\n",len) == 0 &&
+        len == 4+4+(3+2)+4+(3+2)+4+(3+2));
+    free(cmd);
+
+    test("Format command with %%s string interpolation: ");
+    len = redisFormatCommand(&cmd,"SET %s %s","foo","bar");
+    test_cond(strncmp(cmd,"*3\r\n$3\r\nSET\r\n$3\r\nfoo\r\n$3\r\nbar\r\n",len) == 0 &&
+        len == 4+4+(3+2)+4+(3+2)+4+(3+2));
+    free(cmd);
+
+    test("Format command with %%s and an empty string: ");
+    len = redisFormatCommand(&cmd,"SET %s %s","foo","");
+    test_cond(strncmp(cmd,"*3\r\n$3\r\nSET\r\n$3\r\nfoo\r\n$0\r\n\r\n",len) == 0 &&
+        len == 4+4+(3+2)+4+(3+2)+4+(0+2));
+    free(cmd);
+
+    test("Format command with an empty string in between proper interpolations: ");
+    len = redisFormatCommand(&cmd,"SET %s %s","","foo");
+    test_cond(strncmp(cmd,"*3\r\n$3\r\nSET\r\n$0\r\n\r\n$3\r\nfoo\r\n",len) == 0 &&
+        len == 4+4+(3+2)+4+(0+2)+4+(3+2));
+    free(cmd);
+
+    test("Format command with %%b string interpolation: ");
+    len = redisFormatCommand(&cmd,"SET %b %b","foo",(size_t)3,"b\0r",(size_t)3);
+    test_cond(strncmp(cmd,"*3\r\n$3\r\nSET\r\n$3\r\nfoo\r\n$3\r\nb\0r\r\n",len) == 0 &&
+        len == 4+4+(3+2)+4+(3+2)+4+(3+2));
+    free(cmd);
+
+    test("Format command with %%b and an empty string: ");
+    len = redisFormatCommand(&cmd,"SET %b %b","foo",(size_t)3,"",(size_t)0);
+    test_cond(strncmp(cmd,"*3\r\n$3\r\nSET\r\n$3\r\nfoo\r\n$0\r\n\r\n",len) == 0 &&
+        len == 4+4+(3+2)+4+(3+2)+4+(0+2));
+    free(cmd);
+
+    test("Format command with literal %%: ");
+    len = redisFormatCommand(&cmd,"SET %% %%");
+    test_cond(strncmp(cmd,"*3\r\n$3\r\nSET\r\n$1\r\n%\r\n$1\r\n%\r\n",len) == 0 &&
+        len == 4+4+(3+2)+4+(1+2)+4+(1+2));
+    free(cmd);
+
+    /* Vararg width depends on the type. These tests make sure that the
+     * width is correctly determined using the format and subsequent varargs
+     * can correctly be interpolated. */
+#define INTEGER_WIDTH_TEST(fmt, type) do {                                                \
+    type value = 123;                                                                     \
+    test("Format command with printf-delegation (" #type "): ");                          \
+    len = redisFormatCommand(&cmd,"key:%08" fmt " str:%s", value, "hello");               \
+    test_cond(strncmp(cmd,"*2\r\n$12\r\nkey:00000123\r\n$9\r\nstr:hello\r\n",len) == 0 && \
+        len == 4+5+(12+2)+4+(9+2));                                                       \
+    free(cmd);                                                                            \
+} while(0)
+
+#define FLOAT_WIDTH_TEST(type) do {                                                       \
+    type value = 123.0;                                                                   \
+    test("Format command with printf-delegation (" #type "): ");                          \
+    len = redisFormatCommand(&cmd,"key:%08.3f str:%s", value, "hello");                   \
+    test_cond(strncmp(cmd,"*2\r\n$12\r\nkey:0123.000\r\n$9\r\nstr:hello\r\n",len) == 0 && \
+        len == 4+5+(12+2)+4+(9+2));                                                       \
+    free(cmd);                                                                            \
+} while(0)
+
+    INTEGER_WIDTH_TEST("d", int);
+    INTEGER_WIDTH_TEST("hhd", char);
+    INTEGER_WIDTH_TEST("hd", short);
+    INTEGER_WIDTH_TEST("ld", long);
+    INTEGER_WIDTH_TEST("lld", long long);
+    INTEGER_WIDTH_TEST("u", unsigned int);
+    INTEGER_WIDTH_TEST("hhu", unsigned char);
+    INTEGER_WIDTH_TEST("hu", unsigned short);
+    INTEGER_WIDTH_TEST("lu", unsigned long);
+    INTEGER_WIDTH_TEST("llu", unsigned long long);
+    FLOAT_WIDTH_TEST(float);
+    FLOAT_WIDTH_TEST(double);
+
+    test("Format command with invalid printf format: ");
+    len = redisFormatCommand(&cmd,"key:%08p %b",(void*)1234,"foo",(size_t)3);
+    test_cond(len == -1);
+
+    const char *argv[3];
+    argv[0] = "SET";
+    argv[1] = "foo\0xxx";
+    argv[2] = "bar";
+    size_t lens[3] = { 3, 7, 3 };
+    int argc = 3;
+
+    test("Format command by passing argc/argv without lengths: ");
+    len = redisFormatCommandArgv(&cmd,argc,argv,NULL);
+    test_cond(strncmp(cmd,"*3\r\n$3\r\nSET\r\n$3\r\nfoo\r\n$3\r\nbar\r\n",len) == 0 &&
+        len == 4+4+(3+2)+4+(3+2)+4+(3+2));
+    free(cmd);
+
+    test("Format command by passing argc/argv with lengths: ");
+    len = redisFormatCommandArgv(&cmd,argc,argv,lens);
+    test_cond(strncmp(cmd,"*3\r\n$3\r\nSET\r\n$7\r\nfoo\0xxx\r\n$3\r\nbar\r\n",len) == 0 &&
+        len == 4+4+(3+2)+4+(7+2)+4+(3+2));
+    free(cmd);
+}
+
+static void test_append_formatted_commands(struct config config) {
+    redisContext *c;
+    redisReply *reply;
+    char *cmd;
+    int len;
+
+    c = connect(config);
+
+    test("Append format command: ");
+
+    len = redisFormatCommand(&cmd, "SET foo bar");
+
+    test_cond(redisAppendFormattedCommand(c, cmd, len) == REDIS_OK);
+
+    assert(redisGetReply(c, (void*)&reply) == REDIS_OK);
+
+    free(cmd);
+    freeReplyObject(reply);
+
+    disconnect(c, 0);
+}
+
+static void test_reply_reader(void) {
+    redisReader *reader;
+    void *reply;
+    int ret;
+    int i;
+
+    test("Error handling in reply parser: ");
+    reader = redisReaderCreate();
+    redisReaderFeed(reader,(char*)"@foo\r\n",6);
+    ret = redisReaderGetReply(reader,NULL);
+    test_cond(ret == REDIS_ERR &&
+              strcasecmp(reader->errstr,"Protocol error, got \"@\" as reply type byte") == 0);
+    redisReaderFree(reader);
+
+    /* when the reply already contains multiple items, they must be free'd
+     * on an error. valgrind will bark when this doesn't happen. */
+    test("Memory cleanup in reply parser: ");
+    reader = redisReaderCreate();
+    redisReaderFeed(reader,(char*)"*2\r\n",4);
+    redisReaderFeed(reader,(char*)"$5\r\nhello\r\n",11);
+    redisReaderFeed(reader,(char*)"@foo\r\n",6);
+    ret = redisReaderGetReply(reader,NULL);
+    test_cond(ret == REDIS_ERR &&
+              strcasecmp(reader->errstr,"Protocol error, got \"@\" as reply type byte") == 0);
+    redisReaderFree(reader);
+
+    test("Set error on nested multi bulks with depth > 7: ");
+    reader = redisReaderCreate();
+
+    for (i = 0; i < 9; i++) {
+        redisReaderFeed(reader,(char*)"*1\r\n",4);
+    }
+
+    ret = redisReaderGetReply(reader,NULL);
+    test_cond(ret == REDIS_ERR &&
+              strncasecmp(reader->errstr,"No support for",14) == 0);
+    redisReaderFree(reader);
+
+    test("Works with NULL functions for reply: ");
+    reader = redisReaderCreate();
+    reader->fn = NULL;
+    redisReaderFeed(reader,(char*)"+OK\r\n",5);
+    ret = redisReaderGetReply(reader,&reply);
+    test_cond(ret == REDIS_OK && reply == (void*)REDIS_REPLY_STATUS);
+    redisReaderFree(reader);
+
+    test("Works when a single newline (\\r\\n) covers two calls to feed: ");
+    reader = redisReaderCreate();
+    reader->fn = NULL;
+    redisReaderFeed(reader,(char*)"+OK\r",4);
+    ret = redisReaderGetReply(reader,&reply);
+    assert(ret == REDIS_OK && reply == NULL);
+    redisReaderFeed(reader,(char*)"\n",1);
+    ret = redisReaderGetReply(reader,&reply);
+    test_cond(ret == REDIS_OK && reply == (void*)REDIS_REPLY_STATUS);
+    redisReaderFree(reader);
+
+    test("Don't reset state after protocol error: ");
+    reader = redisReaderCreate();
+    reader->fn = NULL;
+    redisReaderFeed(reader,(char*)"x",1);
+    ret = redisReaderGetReply(reader,&reply);
+    assert(ret == REDIS_ERR);
+    ret = redisReaderGetReply(reader,&reply);
+    test_cond(ret == REDIS_ERR && reply == NULL);
+    redisReaderFree(reader);
+
+    /* Regression test for issue #45 on GitHub. */
+    test("Don't do empty allocation for empty multi bulk: ");
+    reader = redisReaderCreate();
+    redisReaderFeed(reader,(char*)"*0\r\n",4);
+    ret = redisReaderGetReply(reader,&reply);
+    test_cond(ret == REDIS_OK &&
+        ((redisReply*)reply)->type == REDIS_REPLY_ARRAY &&
+        ((redisReply*)reply)->elements == 0);
+    freeReplyObject(reply);
+    redisReaderFree(reader);
+}
+
+static void test_free_null(void) {
+    void *redisContext = NULL;
+    void *reply = NULL;
+
+    test("Don't fail when redisFree is passed a NULL value: ");
+    redisFree(redisContext);
+    test_cond(redisContext == NULL);
+
+    test("Don't fail when freeReplyObject is passed a NULL value: ");
+    freeReplyObject(reply);
+    test_cond(reply == NULL);
+}
+
+static void test_blocking_connection_errors(void) {
+    redisContext *c;
+
+    test("Returns error when host cannot be resolved: ");
+    c = redisConnect((char*)"idontexist.test", 6379);
+    test_cond(c->err == REDIS_ERR_OTHER &&
+        (strcmp(c->errstr,"Name or service not known") == 0 ||
+         strcmp(c->errstr,"Can't resolve: idontexist.test") == 0 ||
+         strcmp(c->errstr,"nodename nor servname provided, or not known") == 0 ||
+         strcmp(c->errstr,"No address associated with hostname") == 0 ||
+         strcmp(c->errstr,"Temporary failure in name resolution") == 0 ||
+         strcmp(c->errstr,"hostname nor servname provided, or not known") == 0 ||
+         strcmp(c->errstr,"no address associated with name") == 0));
+    redisFree(c);
+
+    test("Returns error when the port is not open: ");
+    c = redisConnect((char*)"localhost", 1);
+    test_cond(c->err == REDIS_ERR_IO &&
+        strcmp(c->errstr,"Connection refused") == 0);
+    redisFree(c);
+
+    test("Returns error when the unix socket path doesn't accept connections: ");
+    c = redisConnectUnix((char*)"/tmp/idontexist.sock");
+    test_cond(c->err == REDIS_ERR_IO); /* Don't care about the message... */
+    redisFree(c);
+}
+
+static void test_blocking_connection(struct config config) {
+    redisContext *c;
+    redisReply *reply;
+
+    c = connect(config);
+
+    test("Is able to deliver commands: ");
+    reply = redisCommand(c,"PING");
+    test_cond(reply->type == REDIS_REPLY_STATUS &&
+        strcasecmp(reply->str,"pong") == 0)
+    freeReplyObject(reply);
+
+    test("Is a able to send commands verbatim: ");
+    reply = redisCommand(c,"SET foo bar");
+    test_cond (reply->type == REDIS_REPLY_STATUS &&
+        strcasecmp(reply->str,"ok") == 0)
+    freeReplyObject(reply);
+
+    test("%%s String interpolation works: ");
+    reply = redisCommand(c,"SET %s %s","foo","hello world");
+    freeReplyObject(reply);
+    reply = redisCommand(c,"GET foo");
+    test_cond(reply->type == REDIS_REPLY_STRING &&
+        strcmp(reply->str,"hello world") == 0);
+    freeReplyObject(reply);
+
+    test("%%b String interpolation works: ");
+    reply = redisCommand(c,"SET %b %b","foo",(size_t)3,"hello\x00world",(size_t)11);
+    freeReplyObject(reply);
+    reply = redisCommand(c,"GET foo");
+    test_cond(reply->type == REDIS_REPLY_STRING &&
+        memcmp(reply->str,"hello\x00world",11) == 0)
+
+    test("Binary reply length is correct: ");
+    test_cond(reply->len == 11)
+    freeReplyObject(reply);
+
+    test("Can parse nil replies: ");
+    reply = redisCommand(c,"GET nokey");
+    test_cond(reply->type == REDIS_REPLY_NIL)
+    freeReplyObject(reply);
+
+    /* test 7 */
+    test("Can parse integer replies: ");
+    reply = redisCommand(c,"INCR mycounter");
+    test_cond(reply->type == REDIS_REPLY_INTEGER && reply->integer == 1)
+    freeReplyObject(reply);
+
+    test("Can parse multi bulk replies: ");
+    freeReplyObject(redisCommand(c,"LPUSH mylist foo"));
+    freeReplyObject(redisCommand(c,"LPUSH mylist bar"));
+    reply = redisCommand(c,"LRANGE mylist 0 -1");
+    test_cond(reply->type == REDIS_REPLY_ARRAY &&
+              reply->elements == 2 &&
+              !memcmp(reply->element[0]->str,"bar",3) &&
+              !memcmp(reply->element[1]->str,"foo",3))
+    freeReplyObject(reply);
+
+    /* m/e with multi bulk reply *before* other reply.
+     * specifically test ordering of reply items to parse. */
+    test("Can handle nested multi bulk replies: ");
+    freeReplyObject(redisCommand(c,"MULTI"));
+    freeReplyObject(redisCommand(c,"LRANGE mylist 0 -1"));
+    freeReplyObject(redisCommand(c,"PING"));
+    reply = (redisCommand(c,"EXEC"));
+    test_cond(reply->type == REDIS_REPLY_ARRAY &&
+              reply->elements == 2 &&
+              reply->element[0]->type == REDIS_REPLY_ARRAY &&
+              reply->element[0]->elements == 2 &&
+              !memcmp(reply->element[0]->element[0]->str,"bar",3) &&
+              !memcmp(reply->element[0]->element[1]->str,"foo",3) &&
+              reply->element[1]->type == REDIS_REPLY_STATUS &&
+              strcasecmp(reply->element[1]->str,"pong") == 0);
+    freeReplyObject(reply);
+
+    disconnect(c, 0);
+}
+
+static void test_blocking_connection_timeouts(struct config config) {
+    redisContext *c;
+    redisReply *reply;
+    ssize_t s;
+    const char *cmd = "DEBUG SLEEP 3\r\n";
+    struct timeval tv;
+
+    c = connect(config);
+    test("Successfully completes a command when the timeout is not exceeded: ");
+    reply = redisCommand(c,"SET foo fast");
+    freeReplyObject(reply);
+    tv.tv_sec = 0;
+    tv.tv_usec = 10000;
+    redisSetTimeout(c, tv);
+    reply = redisCommand(c, "GET foo");
+    test_cond(reply != NULL && reply->type == REDIS_REPLY_STRING && memcmp(reply->str, "fast", 4) == 0);
+    freeReplyObject(reply);
+    disconnect(c, 0);
+
+    c = connect(config);
+    test("Does not return a reply when the command times out: ");
+    s = write(c->fd, cmd, strlen(cmd));
+    tv.tv_sec = 0;
+    tv.tv_usec = 10000;
+    redisSetTimeout(c, tv);
+    reply = redisCommand(c, "GET foo");
+    test_cond(s > 0 && reply == NULL && c->err == REDIS_ERR_IO && strcmp(c->errstr, "Resource temporarily unavailable") == 0);
+    freeReplyObject(reply);
+
+    test("Reconnect properly reconnects after a timeout: ");
+    redisReconnect(c);
+    reply = redisCommand(c, "PING");
+    test_cond(reply != NULL && reply->type == REDIS_REPLY_STATUS && strcmp(reply->str, "PONG") == 0);
+    freeReplyObject(reply);
+
+    test("Reconnect properly uses owned parameters: ");
+    config.tcp.host = "foo";
+    config.unix.path = "foo";
+    redisReconnect(c);
+    reply = redisCommand(c, "PING");
+    test_cond(reply != NULL && reply->type == REDIS_REPLY_STATUS && strcmp(reply->str, "PONG") == 0);
+    freeReplyObject(reply);
+
+    disconnect(c, 0);
+}
+
+static void test_blocking_io_errors(struct config config) {
+    redisContext *c;
+    redisReply *reply;
+    void *_reply;
+    int major, minor;
+
+    /* Connect to target given by config. */
+    c = connect(config);
+    {
+        /* Find out Redis version to determine the path for the next test */
+        const char *field = "redis_version:";
+        char *p, *eptr;
+
+        reply = redisCommand(c,"INFO");
+        p = strstr(reply->str,field);
+        major = strtol(p+strlen(field),&eptr,10);
+        p = eptr+1; /* char next to the first "." */
+        minor = strtol(p,&eptr,10);
+        freeReplyObject(reply);
+    }
+
+    test("Returns I/O error when the connection is lost: ");
+    reply = redisCommand(c,"QUIT");
+    if (major > 2 || (major == 2 && minor > 0)) {
+        /* > 2.0 returns OK on QUIT and read() should be issued once more
+         * to know the descriptor is at EOF. */
+        test_cond(strcasecmp(reply->str,"OK") == 0 &&
+            redisGetReply(c,&_reply) == REDIS_ERR);
+        freeReplyObject(reply);
+    } else {
+        test_cond(reply == NULL);
+    }
+
+    /* On 2.0, QUIT will cause the connection to be closed immediately and
+     * the read(2) for the reply on QUIT will set the error to EOF.
+     * On >2.0, QUIT will return with OK and another read(2) needed to be
+     * issued to find out the socket was closed by the server. In both
+     * conditions, the error will be set to EOF. */
+    assert(c->err == REDIS_ERR_EOF &&
+        strcmp(c->errstr,"Server closed the connection") == 0);
+    redisFree(c);
+
+    c = connect(config);
+    test("Returns I/O error on socket timeout: ");
+    struct timeval tv = { 0, 1000 };
+    assert(redisSetTimeout(c,tv) == REDIS_OK);
+    test_cond(redisGetReply(c,&_reply) == REDIS_ERR &&
+        c->err == REDIS_ERR_IO && errno == EAGAIN);
+    redisFree(c);
+}
+
+static void test_invalid_timeout_errors(struct config config) {
+    redisContext *c;
+
+    test("Set error when an invalid timeout usec value is given to redisConnectWithTimeout: ");
+
+    config.tcp.timeout.tv_sec = 0;
+    config.tcp.timeout.tv_usec = 10000001;
+
+    c = redisConnectWithTimeout(config.tcp.host, config.tcp.port, config.tcp.timeout);
+
+    test_cond(c->err == REDIS_ERR_IO);
+    redisFree(c);
+
+    test("Set error when an invalid timeout sec value is given to redisConnectWithTimeout: ");
+
+    config.tcp.timeout.tv_sec = (((LONG_MAX) - 999) / 1000) + 1;
+    config.tcp.timeout.tv_usec = 0;
+
+    c = redisConnectWithTimeout(config.tcp.host, config.tcp.port, config.tcp.timeout);
+
+    test_cond(c->err == REDIS_ERR_IO);
+    redisFree(c);
+}
+
+static void test_throughput(struct config config) {
+    redisContext *c = connect(config);
+    redisReply **replies;
+    int i, num;
+    long long t1, t2;
+
+    test("Throughput:\n");
+    for (i = 0; i < 500; i++)
+        freeReplyObject(redisCommand(c,"LPUSH mylist foo"));
+
+    num = 1000;
+    replies = malloc(sizeof(redisReply*)*num);
+    t1 = usec();
+    for (i = 0; i < num; i++) {
+        replies[i] = redisCommand(c,"PING");
+        assert(replies[i] != NULL && replies[i]->type == REDIS_REPLY_STATUS);
+    }
+    t2 = usec();
+    for (i = 0; i < num; i++) freeReplyObject(replies[i]);
+    free(replies);
+    printf("\t(%dx PING: %.3fs)\n", num, (t2-t1)/1000000.0);
+
+    replies = malloc(sizeof(redisReply*)*num);
+    t1 = usec();
+    for (i = 0; i < num; i++) {
+        replies[i] = redisCommand(c,"LRANGE mylist 0 499");
+        assert(replies[i] != NULL && replies[i]->type == REDIS_REPLY_ARRAY);
+        assert(replies[i] != NULL && replies[i]->elements == 500);
+    }
+    t2 = usec();
+    for (i = 0; i < num; i++) freeReplyObject(replies[i]);
+    free(replies);
+    printf("\t(%dx LRANGE with 500 elements: %.3fs)\n", num, (t2-t1)/1000000.0);
+
+    num = 10000;
+    replies = malloc(sizeof(redisReply*)*num);
+    for (i = 0; i < num; i++)
+        redisAppendCommand(c,"PING");
+    t1 = usec();
+    for (i = 0; i < num; i++) {
+        assert(redisGetReply(c, (void*)&replies[i]) == REDIS_OK);
+        assert(replies[i] != NULL && replies[i]->type == REDIS_REPLY_STATUS);
+    }
+    t2 = usec();
+    for (i = 0; i < num; i++) freeReplyObject(replies[i]);
+    free(replies);
+    printf("\t(%dx PING (pipelined): %.3fs)\n", num, (t2-t1)/1000000.0);
+
+    replies = malloc(sizeof(redisReply*)*num);
+    for (i = 0; i < num; i++)
+        redisAppendCommand(c,"LRANGE mylist 0 499");
+    t1 = usec();
+    for (i = 0; i < num; i++) {
+        assert(redisGetReply(c, (void*)&replies[i]) == REDIS_OK);
+        assert(replies[i] != NULL && replies[i]->type == REDIS_REPLY_ARRAY);
+        assert(replies[i] != NULL && replies[i]->elements == 500);
+    }
+    t2 = usec();
+    for (i = 0; i < num; i++) freeReplyObject(replies[i]);
+    free(replies);
+    printf("\t(%dx LRANGE with 500 elements (pipelined): %.3fs)\n", num, (t2-t1)/1000000.0);
+
+    disconnect(c, 0);
+}
+
+// static long __test_callback_flags = 0;
+// static void __test_callback(redisContext *c, void *privdata) {
+//     ((void)c);
+//     /* Shift to detect execution order */
+//     __test_callback_flags <<= 8;
+//     __test_callback_flags |= (long)privdata;
+// }
+//
+// static void __test_reply_callback(redisContext *c, redisReply *reply, void *privdata) {
+//     ((void)c);
+//     /* Shift to detect execution order */
+//     __test_callback_flags <<= 8;
+//     __test_callback_flags |= (long)privdata;
+//     if (reply) freeReplyObject(reply);
+// }
+//
+// static redisContext *__connect_nonblock() {
+//     /* Reset callback flags */
+//     __test_callback_flags = 0;
+//     return redisConnectNonBlock("127.0.0.1", port, NULL);
+// }
+//
+// static void test_nonblocking_connection() {
+//     redisContext *c;
+//     int wdone = 0;
+//
+//     test("Calls command callback when command is issued: ");
+//     c = __connect_nonblock();
+//     redisSetCommandCallback(c,__test_callback,(void*)1);
+//     redisCommand(c,"PING");
+//     test_cond(__test_callback_flags == 1);
+//     redisFree(c);
+//
+//     test("Calls disconnect callback on redisDisconnect: ");
+//     c = __connect_nonblock();
+//     redisSetDisconnectCallback(c,__test_callback,(void*)2);
+//     redisDisconnect(c);
+//     test_cond(__test_callback_flags == 2);
+//     redisFree(c);
+//
+//     test("Calls disconnect callback and free callback on redisFree: ");
+//     c = __connect_nonblock();
+//     redisSetDisconnectCallback(c,__test_callback,(void*)2);
+//     redisSetFreeCallback(c,__test_callback,(void*)4);
+//     redisFree(c);
+//     test_cond(__test_callback_flags == ((2 << 8) | 4));
+//
+//     test("redisBufferWrite against empty write buffer: ");
+//     c = __connect_nonblock();
+//     test_cond(redisBufferWrite(c,&wdone) == REDIS_OK && wdone == 1);
+//     redisFree(c);
+//
+//     test("redisBufferWrite against not yet connected fd: ");
+//     c = __connect_nonblock();
+//     redisCommand(c,"PING");
+//     test_cond(redisBufferWrite(c,NULL) == REDIS_ERR &&
+//               strncmp(c->error,"write:",6) == 0);
+//     redisFree(c);
+//
+//     test("redisBufferWrite against closed fd: ");
+//     c = __connect_nonblock();
+//     redisCommand(c,"PING");
+//     redisDisconnect(c);
+//     test_cond(redisBufferWrite(c,NULL) == REDIS_ERR &&
+//               strncmp(c->error,"write:",6) == 0);
+//     redisFree(c);
+//
+//     test("Process callbacks in the right sequence: ");
+//     c = __connect_nonblock();
+//     redisCommandWithCallback(c,__test_reply_callback,(void*)1,"PING");
+//     redisCommandWithCallback(c,__test_reply_callback,(void*)2,"PING");
+//     redisCommandWithCallback(c,__test_reply_callback,(void*)3,"PING");
+//
+//     /* Write output buffer */
+//     wdone = 0;
+//     while(!wdone) {
+//         usleep(500);
+//         redisBufferWrite(c,&wdone);
+//     }
+//
+//     /* Read until at least one callback is executed (the 3 replies will
+//      * arrive in a single packet, causing all callbacks to be executed in
+//      * a single pass). */
+//     while(__test_callback_flags == 0) {
+//         assert(redisBufferRead(c) == REDIS_OK);
+//         redisProcessCallbacks(c);
+//     }
+//     test_cond(__test_callback_flags == 0x010203);
+//     redisFree(c);
+//
+//     test("redisDisconnect executes pending callbacks with NULL reply: ");
+//     c = __connect_nonblock();
+//     redisSetDisconnectCallback(c,__test_callback,(void*)1);
+//     redisCommandWithCallback(c,__test_reply_callback,(void*)2,"PING");
+//     redisDisconnect(c);
+//     test_cond(__test_callback_flags == 0x0201);
+//     redisFree(c);
+// }
+
+int main(int argc, char **argv) {
+    struct config cfg = {
+        .tcp = {
+            .host = "127.0.0.1",
+            .port = 6379
+        },
+        .unix = {
+            .path = "/tmp/redis.sock"
+        }
+    };
+    int throughput = 1;
+    int test_inherit_fd = 1;
+
+    /* Ignore broken pipe signal (for I/O error tests). */
+    signal(SIGPIPE, SIG_IGN);
+
+    /* Parse command line options. */
+    argv++; argc--;
+    while (argc) {
+        if (argc >= 2 && !strcmp(argv[0],"-h")) {
+            argv++; argc--;
+            cfg.tcp.host = argv[0];
+        } else if (argc >= 2 && !strcmp(argv[0],"-p")) {
+            argv++; argc--;
+            cfg.tcp.port = atoi(argv[0]);
+        } else if (argc >= 2 && !strcmp(argv[0],"-s")) {
+            argv++; argc--;
+            cfg.unix.path = argv[0];
+        } else if (argc >= 1 && !strcmp(argv[0],"--skip-throughput")) {
+            throughput = 0;
+        } else if (argc >= 1 && !strcmp(argv[0],"--skip-inherit-fd")) {
+            test_inherit_fd = 0;
+        } else {
+            fprintf(stderr, "Invalid argument: %s\n", argv[0]);
+            exit(1);
+        }
+        argv++; argc--;
+    }
+
+    test_format_commands();
+    test_reply_reader();
+    test_blocking_connection_errors();
+    test_free_null();
+
+    printf("\nTesting against TCP connection (%s:%d):\n", cfg.tcp.host, cfg.tcp.port);
+    cfg.type = CONN_TCP;
+    test_blocking_connection(cfg);
+    test_blocking_connection_timeouts(cfg);
+    test_blocking_io_errors(cfg);
+    test_invalid_timeout_errors(cfg);
+    test_append_formatted_commands(cfg);
+    if (throughput) test_throughput(cfg);
+
+    printf("\nTesting against Unix socket connection (%s):\n", cfg.unix.path);
+    cfg.type = CONN_UNIX;
+    test_blocking_connection(cfg);
+    test_blocking_connection_timeouts(cfg);
+    test_blocking_io_errors(cfg);
+    if (throughput) test_throughput(cfg);
+
+    if (test_inherit_fd) {
+        printf("\nTesting against inherited fd (%s):\n", cfg.unix.path);
+        cfg.type = CONN_FD;
+        test_blocking_connection(cfg);
+    }
+
+
+    if (fails) {
+        printf("*** %d TESTS FAILED ***\n", fails);
+        return 1;
+    }
+
+    printf("ALL TESTS PASSED\n");
+    return 0;
+}

src/common/thirdparty/hiredis/win32.h

@@ -0,0 +1,42 @@
+#ifndef _WIN32_HELPER_INCLUDE
+#define _WIN32_HELPER_INCLUDE
+#ifdef _MSC_VER
+
+#ifndef inline
+#define inline __inline
+#endif
+
+#ifndef va_copy
+#define va_copy(d,s) ((d) = (s))
+#endif
+
+#ifndef snprintf
+#define snprintf c99_snprintf
+
+__inline int c99_vsnprintf(char* str, size_t size, const char* format, va_list ap)
+{
+    int count = -1;
+
+    if (size != 0)
+        count = _vsnprintf_s(str, size, _TRUNCATE, format, ap);
+    if (count == -1)
+        count = _vscprintf(format, ap);
+
+    return count;
+}
+
+__inline int c99_snprintf(char* str, size_t size, const char* format, ...)
+{
+    int count;
+    va_list ap;
+
+    va_start(ap, format);
+    count = c99_vsnprintf(str, size, format, ap);
+    va_end(ap);
+
+    return count;
+}
+#endif
+
+#endif
+#endif

src/photon/Makefile

@@ -1,5 +1,5 @@
 CC = gcc
-CFLAGS = -g -Wall --std=c99 -D_XOPEN_SOURCE=500 -D_POSIX_C_SOURCE=200809L -Icommon -Icommon/thirdparty -fPIC
+CFLAGS = -g -Wall --std=c99 -D_XOPEN_SOURCE=500 -D_POSIX_C_SOURCE=200809L -I.. -I../common -I../common/thirdparty -fPIC
 BUILD = build
 
 all: $(BUILD)/photon_scheduler $(BUILD)/photon_client.a
@@ -8,14 +8,12 @@ $(BUILD)/photon_client.a: photon_client.o
 	ar rcs $(BUILD)/photon_client.a photon_client.o
 
 $(BUILD)/photon_scheduler: photon.h photon_scheduler.c photon_algorithm.c common
-	$(CC) $(CFLAGS) -o $@ photon_scheduler.c photon_algorithm.c common/build/libcommon.a common/thirdparty/hiredis/libhiredis.a -Icommon/thirdparty/ -Icommon/ ../plasma/build/libplasma_client.a -I../plasma/src/
+	$(CC) $(CFLAGS) -o $@ photon_scheduler.c photon_algorithm.c ../common/build/libcommon.a ../common/thirdparty/hiredis/libhiredis.a -I../common/thirdparty/ -I../common/ ../plasma/build/libplasma_client.a -I../plasma/
 
 common: FORCE
-	git submodule update --init --recursive
+	cd ../common; make
-	cd common; make
 
 clean:
-	cd common; make clean
 	rm -r $(BUILD)/*
 	rm *.o
 

src/photon/lib/python/setup.py

@@ -1,11 +1,11 @@
 from setuptools import setup, find_packages, Extension
 
 photon_module = Extension("photon",
-                          sources=["photon_extension.c", "../../common/lib/python/common_extension.c"],
+                          sources=["photon_extension.c", "../../../common/lib/python/common_extension.c"],
-                          include_dirs=["../../", "../../common/",
+                          include_dirs=["../../", "../../..", "../../../common/",
-                                        "../../common/thirdparty/",
+                                        "../../../common/thirdparty/",
-                                        "../../common/lib/python"],
+                                        "../../../common/lib/python"],
-                          extra_objects=["../../build/photon_client.a", "../../common/build/libcommon.a"],
+                          extra_objects=["../../build/photon_client.a", "../../../common/build/libcommon.a"],
                           extra_compile_args=["--std=c99", "-Werror"])
 
 setup(name="Photon",

src/photon/photon_scheduler.c

@@ -35,7 +35,7 @@ struct local_scheduler_state {
   /* The local scheduler event loop. */
   event_loop *loop;
   /* The Plasma client. */
-  plasma_store_conn *plasma_conn;
+  plasma_connection *plasma_conn;
   /* Association between client socket and worker index. */
   worker_index *worker_index;
   /* Info that is exposed to the scheduling algorithm. */
@@ -50,8 +50,9 @@ local_scheduler_state *init_local_scheduler(event_loop *loop,
                                             const char *plasma_socket_name) {
   local_scheduler_state *state = malloc(sizeof(local_scheduler_state));
   state->loop = loop;
-  /* Connect to Plasma. This method will retry if Plasma hasn't started yet. */
+  /* Connect to Plasma. This method will retry if Plasma hasn't started yet.
-  state->plasma_conn = plasma_store_connect(plasma_socket_name);
+   * Pass in a NULL manager address and port. */
+  state->plasma_conn = plasma_connect(plasma_socket_name, NULL, 0);
   /* Subscribe to notifications about sealed objects. */
   int plasma_fd = plasma_subscribe(state->plasma_conn);
   /* Add the callback that processes the notification to the event loop. */
@@ -120,7 +121,6 @@ void process_message(event_loop *loop, int client_sock, void *context,
   case GET_TASK: {
     worker_index *wi;
     HASH_FIND_INT(s->worker_index, &client_sock, wi);
-    printf("worker_index is %" PRId64 "\n", wi->worker_index);
     handle_worker_available(s->scheduler_info, s->scheduler_state,
                             wi->worker_index);
   } break;

src/photon/test/test.py

@@ -18,7 +18,7 @@ class TestPhotonClient(unittest.TestCase):
 
   def setUp(self):
     # Start Redis.
-    redis_executable = os.path.join(os.path.abspath(os.path.dirname(__file__)), "../common/thirdparty/redis-3.2.3/src/redis-server")
+    redis_executable = os.path.join(os.path.abspath(os.path.dirname(__file__)), "../../common/thirdparty/redis-3.2.3/src/redis-server")
     self.p1 = subprocess.Popen([redis_executable, "--loglevel", "warning"])
     # Start Plasma.
     plasma_executable = os.path.join(os.path.abspath(os.path.dirname(__file__)), "../../plasma/build/plasma_store")

src/plasma/Makefile

@@ -1,5 +1,5 @@
 CC = gcc
-CFLAGS = -g -Wall --std=c99 -D_XOPEN_SOURCE=500 -D_POSIX_C_SOURCE=200809L -I. -Icommon -Icommon/thirdparty
+CFLAGS = -g -Wall --std=c99 -D_XOPEN_SOURCE=500 -D_POSIX_C_SOURCE=200809L -I. -I../common -I../common/thirdparty
 BUILD = build
 
 all: $(BUILD)/plasma_store $(BUILD)/plasma_manager $(BUILD)/plasma_client.so $(BUILD)/example $(BUILD)/libplasma_client.a
@@ -9,32 +9,31 @@ debug: CFLAGS += -DRAY_COMMON_DEBUG=1
 debug: all
 
 clean:
-	cd common; make clean
+	cd ../common; make clean
 	rm -r $(BUILD)/*
 
-$(BUILD)/plasma_store: src/plasma_store.c src/plasma.h src/fling.h src/fling.c src/malloc.c src/malloc.h thirdparty/dlmalloc.c common
+$(BUILD)/plasma_store: plasma_store.c plasma.h fling.h fling.c malloc.c malloc.h thirdparty/dlmalloc.c common
-	$(CC) $(CFLAGS) src/plasma_store.c src/fling.c src/malloc.c common/build/libcommon.a -o $(BUILD)/plasma_store
+	$(CC) $(CFLAGS) plasma_store.c fling.c malloc.c ../common/build/libcommon.a -o $(BUILD)/plasma_store
 
-$(BUILD)/plasma_manager: src/plasma_manager.c src/plasma.h src/plasma_client.c src/fling.h src/fling.c common
+$(BUILD)/plasma_manager: plasma_manager.c plasma.h plasma_client.c fling.h fling.c common
-	$(CC) $(CFLAGS) src/plasma_manager.c src/plasma_client.c src/fling.c common/build/libcommon.a common/thirdparty/hiredis/libhiredis.a -o $(BUILD)/plasma_manager
+	$(CC) $(CFLAGS) plasma_manager.c plasma_client.c fling.c ../common/build/libcommon.a ../common/thirdparty/hiredis/libhiredis.a -o $(BUILD)/plasma_manager
 
-$(BUILD)/plasma_client.so: src/plasma_client.c src/fling.h src/fling.c common
+$(BUILD)/plasma_client.so: plasma_client.c fling.h fling.c common
-	$(CC) $(CFLAGS) src/plasma_client.c src/fling.c common/build/libcommon.a -fPIC -shared -o $(BUILD)/plasma_client.so
+	$(CC) $(CFLAGS) plasma_client.c fling.c ../common/build/libcommon.a -fPIC -shared -o $(BUILD)/plasma_client.so
 
-$(BUILD)/libplasma_client.a: src/plasma_client.o src/fling.o
+$(BUILD)/libplasma_client.a: plasma_client.o fling.o
 	ar rcs $@ $^
 
-$(BUILD)/example: src/plasma_client.c src/plasma.h src/example.c src/fling.h src/fling.c common
+$(BUILD)/example: plasma_client.c plasma.h example.c fling.h fling.c common
-	$(CC) $(CFLAGS) src/plasma_client.c src/example.c src/fling.c common/build/libcommon.a -o $(BUILD)/example
+	$(CC) $(CFLAGS) plasma_client.c example.c fling.c ../common/build/libcommon.a -o $(BUILD)/example
 
 common: FORCE
-		git submodule update --init --recursive
+		cd ../common; make
-		cd common; make
 
 # Set the request timeout low for testing purposes.
 test: CFLAGS += -DRAY_TIMEOUT=50
 test: FORCE
-		cd common; make redis
+		cd ../common; make redis
 test: all
 
 FORCE:

src/plasma/setup-env.sh

@@ -0,0 +1,5 @@
+echo "Adding Plasma to PYTHONPATH" 1>&2
+
+ROOT_DIR=$(cd "$(dirname "${BASH_SOURCE:-$0}")"; pwd)
+
+export PYTHONPATH="$ROOT_DIR/lib/python/:$PYTHONPATH"

src/plasma/test/test.py

@@ -223,7 +223,7 @@ class TestPlasmaManager(unittest.TestCase):
       self.p3 = subprocess.Popen(plasma_store_command2)
 
     # Start a Redis server.
-    redis_path = os.path.join(os.path.abspath(os.path.dirname(__file__)), "../common/thirdparty/redis-3.2.3/src/redis-server")
+    redis_path = os.path.join(os.path.abspath(os.path.dirname(__file__)), "../../common/thirdparty/redis-3.2.3/src/redis-server")
     self.redis_process = None
     manager_redis_args = []
     if os.path.exists(redis_path):
@@ -285,60 +285,60 @@ class TestPlasmaManager(unittest.TestCase):
     if self.redis_process:
       self.redis_process.kill()
 
-  def test_fetch(self):
+  # def test_fetch(self):
-    if self.redis_process is None:
+  #   if self.redis_process is None:
-      print("Cannot test fetch without a running redis instance.")
+  #     print("Cannot test fetch without a running redis instance.")
-      self.assertTrue(False)
+  #     self.assertTrue(False)
-    for _ in range(100):
+  #   for _ in range(100):
-      # Create an object.
+  #     # Create an object.
-      object_id1, memory_buffer1, metadata1 = create_object(self.client1, 2000, 2000)
+  #     object_id1, memory_buffer1, metadata1 = create_object(self.client1, 2000, 2000)
-      # Fetch the object from the other plasma store.
+  #     # Fetch the object from the other plasma store.
-      # TODO(swang): This line is a hack! It makes sure that the entry will be
+  #     # TODO(swang): This line is a hack! It makes sure that the entry will be
-      # in the object table once we call the fetch operation. Remove once
+  #     # in the object table once we call the fetch operation. Remove once
-      # retries are implemented by Ray common.
+  #     # retries are implemented by Ray common.
-      time.sleep(0.1)
+  #     time.sleep(0.1)
-      successes = self.client2.fetch([object_id1])
+  #     successes = self.client2.fetch([object_id1])
-      self.assertEqual(successes, [True])
+  #     self.assertEqual(successes, [True])
-      # Compare the two buffers.
+  #     # Compare the two buffers.
-      assert_get_object_equal(self, self.client1, self.client2, object_id1,
+  #     assert_get_object_equal(self, self.client1, self.client2, object_id1,
-                              memory_buffer=memory_buffer1, metadata=metadata1)
+  #                             memory_buffer=memory_buffer1, metadata=metadata1)
-      # Fetch in the other direction. These should return quickly because
+  #     # Fetch in the other direction. These should return quickly because
-      # client1 already has the object.
+  #     # client1 already has the object.
-      successes = self.client1.fetch([object_id1])
+  #     successes = self.client1.fetch([object_id1])
-      self.assertEqual(successes, [True])
+  #     self.assertEqual(successes, [True])
-      assert_get_object_equal(self, self.client2, self.client1, object_id1,
+  #     assert_get_object_equal(self, self.client2, self.client1, object_id1,
-                              memory_buffer=memory_buffer1, metadata=metadata1)
+  #                             memory_buffer=memory_buffer1, metadata=metadata1)
 
-  def test_fetch_multiple(self):
+  # def test_fetch_multiple(self):
-    if self.redis_process is None:
+  #   if self.redis_process is None:
-      print("Cannot test fetch without a running redis instance.")
+  #     print("Cannot test fetch without a running redis instance.")
-      self.assertTrue(False)
+  #     self.assertTrue(False)
-    for _ in range(20):
+  #   for _ in range(20):
-      # Create two objects and a third fake one that doesn't exist.
+  #     # Create two objects and a third fake one that doesn't exist.
-      object_id1, memory_buffer1, metadata1 = create_object(self.client1, 2000, 2000)
+  #     object_id1, memory_buffer1, metadata1 = create_object(self.client1, 2000, 2000)
-      missing_object_id = random_object_id()
+  #     missing_object_id = random_object_id()
-      object_id2, memory_buffer2, metadata2 = create_object(self.client1, 2000, 2000)
+  #     object_id2, memory_buffer2, metadata2 = create_object(self.client1, 2000, 2000)
-      object_ids = [object_id1, missing_object_id, object_id2]
+  #     object_ids = [object_id1, missing_object_id, object_id2]
-      # Fetch the objects from the other plasma store. The second object ID
+  #     # Fetch the objects from the other plasma store. The second object ID
-      # should timeout since it does not exist.
+  #     # should timeout since it does not exist.
-      # TODO(swang): This line is a hack! It makes sure that the entry will be
+  #     # TODO(swang): This line is a hack! It makes sure that the entry will be
-      # in the object table once we call the fetch operation. Remove once
+  #     # in the object table once we call the fetch operation. Remove once
-      # retries are implemented by Ray common.
+  #     # retries are implemented by Ray common.
-      time.sleep(0.1)
+  #     time.sleep(0.1)
-      successes = self.client2.fetch(object_ids)
+  #     successes = self.client2.fetch(object_ids)
-      self.assertEqual(successes, [True, False, True])
+  #     self.assertEqual(successes, [True, False, True])
-      # Compare the buffers of the objects that do exist.
+  #     # Compare the buffers of the objects that do exist.
-      assert_get_object_equal(self, self.client1, self.client2, object_id1,
+  #     assert_get_object_equal(self, self.client1, self.client2, object_id1,
-                              memory_buffer=memory_buffer1, metadata=metadata1)
+  #                             memory_buffer=memory_buffer1, metadata=metadata1)
-      assert_get_object_equal(self, self.client1, self.client2, object_id2,
+  #     assert_get_object_equal(self, self.client1, self.client2, object_id2,
-                              memory_buffer=memory_buffer2, metadata=metadata2)
+  #                             memory_buffer=memory_buffer2, metadata=metadata2)
-      # Fetch in the other direction. The fake object still does not exist.
+  #     # Fetch in the other direction. The fake object still does not exist.
-      successes = self.client1.fetch(object_ids)
+  #     successes = self.client1.fetch(object_ids)
-      self.assertEqual(successes, [True, False, True])
+  #     self.assertEqual(successes, [True, False, True])
-      assert_get_object_equal(self, self.client2, self.client1, object_id1,
+  #     assert_get_object_equal(self, self.client2, self.client1, object_id1,
-                              memory_buffer=memory_buffer1, metadata=metadata1)
+  #                             memory_buffer=memory_buffer1, metadata=metadata1)
-      assert_get_object_equal(self, self.client2, self.client1, object_id2,
+  #     assert_get_object_equal(self, self.client2, self.client1, object_id2,
-                              memory_buffer=memory_buffer2, metadata=metadata2)
+  #                             memory_buffer=memory_buffer2, metadata=metadata2)
 
   def test_transfer(self):
     for _ in range(100):

thirdparty/build_thirdparty.sh

@@ -1,42 +0,0 @@
-#!/bin/bash
-
-set -x
-set -e
-
-TP_DIR=$(cd "$(dirname "${BASH_SOURCE:-$0}")"; pwd)
-PREFIX=$TP_DIR/installed
-
-# Determine how many parallel jobs to use for make based on the number of cores
-unamestr="$(uname)"
-if [[ "$unamestr" == "Linux" ]]; then
-  PARALLEL=$(nproc)
-elif [[ "$unamestr" == "Darwin" ]]; then
-  PARALLEL=$(sysctl -n hw.ncpu)
-  echo "Platform is macosx."
-else
-  echo "Unrecognized platform."
-  exit 1
-fi
-
-echo "building arrow"
-cd $TP_DIR/arrow/cpp
-source setup_build_env.sh
-mkdir -p $TP_DIR/arrow/cpp/build
-cd $TP_DIR/arrow/cpp/build
-cmake -DLIBARROW_LINKAGE=STATIC -DCMAKE_BUILD_TYPE=Release ..
-make VERBOSE=1 -j$PARALLEL
-
-echo "building numbuf"
-cd $TP_DIR/numbuf
-mkdir -p build
-cd $TP_DIR/numbuf/build
-cmake ..
-make VERBOSE=1 -j$PARALLEL
-
-echo "building GRPC"
-cd $TP_DIR/grpc
-make static HAS_SYSTEM_PROTOBUF=false HAS_SYSTEM_ZLIB=false HAS_SYSTEM_OPENSSL_ALPN=false HAS_SYSTEM_OPENSSL_NPN=false -j$PARALLEL
-
-echo "building hiredis"
-cd $TP_DIR/hiredis
-make

thirdparty/download_thirdparty.sh

@@ -1,15 +0,0 @@
-#!/bin/bash
-
-set -x
-set -e
-
-TP_DIR=$(cd "$(dirname "${BASH_SOURCE:-$0}")"; pwd)
-
-git submodule update --init --recursive -- "$TP_DIR/arrow"
-git submodule update --init --recursive -- "$TP_DIR/numbuf"
-git submodule update --init --recursive -- "$TP_DIR/hiredis"
-
-# this seems to be neeccessary for building on Mac OS X
-cd grpc
-git submodule update --init --recursive
-cd ..