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);
+
+}