initial orchestra commit

lib/orchlib/orchlib.cc

@@ -0,0 +1,52 @@
+#include <iostream>
+#include <memory>
+#include <string>
+
+#include <grpc++/grpc++.h>
+
+#include "orchestra.grpc.pb.h"
+#include "orchlib.h"
+
+using grpc::Channel;
+using grpc::ClientContext;
+using grpc::Status;
+
+class Client {
+ public:
+  Client(std::shared_ptr<Channel> channel)
+      : stub_(Orchestra::NewStub(channel)) {}
+
+  void RemoteCall(const std::string& name) {
+    RemoteCallRequest request;
+    request.set_name(name);
+
+    RemoteCallReply reply;
+    ClientContext context;
+
+    Status status = stub_->RemoteCall(&context, request, &reply);
+
+    return;
+  }
+
+ private:
+  std::unique_ptr<Orchestra::Stub> stub_;
+};
+
+void* orch_create_context(const char* server_addr) {
+  Client* client = new Client(grpc::CreateChannel("localhost:50052", grpc::InsecureChannelCredentials()));
+  return client;
+}
+
+size_t orch_remote_call(void* context, const char* name, void* args) {
+  Client* client = (Client*)context;
+  client->RemoteCall(std::string(name));
+}
+
+int main(int argc, char** argv) {
+  Client greeter(
+      grpc::CreateChannel("localhost:50052", grpc::InsecureChannelCredentials()));
+  std::string user("world");
+  greeter.RemoteCall(user);
+
+  return 0;
+}

lib/orchlib/orchlib.h

@@ -0,0 +1,6 @@
+extern "C" {
+
+void* orch_create_context(const char* server_addr);
+size_t orch_remote_call(void* context, const char* name, void* args);
+
+}

lib/orchpy/orchpy/__init__.py

@@ -0,0 +1 @@
+from .context import Context

lib/orchpy/orchpy/context.pyx

@@ -0,0 +1,14 @@
+cdef extern void* orch_create_context(const char* server_addr);
+cdef extern size_t orch_remote_call(void* context, const char* name, void* args);
+
+cdef class Context:
+  cdef void* context
+
+  def __cinit__(self):
+    self.context = NULL
+
+  def connect(self, server_addr):
+    self.context = orch_create_context(server_addr)
+
+  def call(self, name):
+    orch_remote_call(self.context, name, <void*>0)

lib/orchpy/setup.py

@@ -0,0 +1,16 @@
+from setuptools import setup, Extension, find_packages
+from Cython.Build import cythonize
+
+# because of relative paths, this must be run from inside orch/lib/orchpy/
+
+setup(
+  name = "orchestra",
+  version = "0.1.dev0",
+  ext_modules = cythonize([
+    Extension("orchpy/context",
+      sources = ["orchpy/context.pyx"], libraries=["orchlib"],
+      library_dirs=['../orchlib/'])],
+    compiler_directives={'language_level': 3}),
+  use_2to3=True,
+  packages=find_packages()
+)