Async helloworld client and server
diff --git a/cpp/helloworld/Makefile b/cpp/helloworld/Makefile
index a8d01a7..f2093af 100644
--- a/cpp/helloworld/Makefile
+++ b/cpp/helloworld/Makefile
@@ -41,7 +41,7 @@
vpath %.proto $(PROTOS_PATH)
-all: system-check greeter_client greeter_server
+all: system-check greeter_client greeter_server greeter_async_client greeter_async_server
greeter_client: helloworld.pb.o helloworld.grpc.pb.o greeter_client.o
$(CXX) $^ $(LDFLAGS) -o $@
@@ -49,6 +49,12 @@
greeter_server: helloworld.pb.o helloworld.grpc.pb.o greeter_server.o
$(CXX) $^ $(LDFLAGS) -o $@
+greeter_async_client: helloworld.pb.o helloworld.grpc.pb.o greeter_async_client.o
+ $(CXX) $^ $(LDFLAGS) -o $@
+
+greeter_async_server: helloworld.pb.o helloworld.grpc.pb.o greeter_async_server.o
+ $(CXX) $^ $(LDFLAGS) -o $@
+
%.grpc.pb.cc: %.proto
$(PROTOC) -I $(PROTOS_PATH) --grpc_out=. --plugin=protoc-gen-grpc=$(GRPC_CPP_PLUGIN_PATH) $<
@@ -56,7 +62,7 @@
$(PROTOC) -I $(PROTOS_PATH) --cpp_out=. $<
clean:
- rm -f *.o *.pb.cc *.pb.h greeter_client greeter_server
+ rm -f *.o *.pb.cc *.pb.h greeter_client greeter_server greeter_async_client greeter_async_server
# The following is to test your system and ensure a smoother experience.
diff --git a/cpp/helloworld/greeter_async_client.cc b/cpp/helloworld/greeter_async_client.cc
new file mode 100644
index 0000000..f94663f
--- /dev/null
+++ b/cpp/helloworld/greeter_async_client.cc
@@ -0,0 +1,111 @@
+/*
+ *
+ * Copyright 2015, Google Inc.
+ * 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 Google Inc. 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 <iostream>
+#include <memory>
+#include <string>
+
+#include <grpc/grpc.h>
+#include <grpc/support/log.h>
+#include <grpc++/async_unary_call.h>
+#include <grpc++/channel_arguments.h>
+#include <grpc++/channel_interface.h>
+#include <grpc++/client_context.h>
+#include <grpc++/completion_queue.h>
+#include <grpc++/create_channel.h>
+#include <grpc++/credentials.h>
+#include <grpc++/status.h>
+#include "helloworld.grpc.pb.h"
+
+using grpc::ChannelArguments;
+using grpc::ChannelInterface;
+using grpc::ClientAsyncResponseReader;
+using grpc::ClientContext;
+using grpc::CompletionQueue;
+using grpc::Status;
+using helloworld::HelloRequest;
+using helloworld::HelloReply;
+using helloworld::Greeter;
+
+class GreeterClient {
+ public:
+ GreeterClient(std::shared_ptr<ChannelInterface> channel)
+ : stub_(Greeter::NewStub(channel)) {}
+
+ std::string SayHello(const std::string& user) {
+ HelloRequest request;
+ request.set_name(user);
+ HelloReply reply;
+ ClientContext context;
+ CompletionQueue cq;
+ Status status;
+
+ std::unique_ptr<ClientAsyncResponseReader<HelloReply> > rpc(
+ stub_->AsyncSayHello(&context, request, &cq, (void*)1));
+ void* got_tag;
+ bool ok;
+ cq.Next(&got_tag, &ok);
+ GPR_ASSERT(ok);
+ GPR_ASSERT(got_tag == (void*)1);
+
+ rpc->Finish(&reply, &status, (void*)2);
+ cq.Next(&got_tag, &ok);
+ GPR_ASSERT(ok);
+ GPR_ASSERT(got_tag == (void*)2);
+
+ if (status.IsOk()) {
+ return reply.message();
+ } else {
+ return "Rpc failed";
+ }
+ }
+
+ void Shutdown() { stub_.reset(); }
+
+ private:
+ std::unique_ptr<Greeter::Stub> stub_;
+};
+
+int main(int argc, char** argv) {
+ grpc_init();
+
+ GreeterClient greeter(grpc::CreateChannel(
+ "localhost:50051", grpc::InsecureCredentials(), ChannelArguments()));
+ std::string user("world");
+ std::string reply = greeter.SayHello(user);
+ std::cout << "Greeter received: " << reply << std::endl;
+
+ greeter.Shutdown();
+
+ grpc_shutdown();
+}
diff --git a/cpp/helloworld/greeter_async_server.cc b/cpp/helloworld/greeter_async_server.cc
new file mode 100644
index 0000000..32c3113
--- /dev/null
+++ b/cpp/helloworld/greeter_async_server.cc
@@ -0,0 +1,134 @@
+/*
+ *
+ * Copyright 2015, Google Inc.
+ * 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 Google Inc. 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 <memory>
+#include <iostream>
+#include <string>
+#include <thread>
+
+#include <grpc/grpc.h>
+#include <grpc/support/log.h>
+#include <grpc++/async_unary_call.h>
+#include <grpc++/completion_queue.h>
+#include <grpc++/server.h>
+#include <grpc++/server_builder.h>
+#include <grpc++/server_context.h>
+#include <grpc++/server_credentials.h>
+#include <grpc++/status.h>
+#include "helloworld.grpc.pb.h"
+
+using grpc::CompletionQueue;
+using grpc::Server;
+using grpc::ServerAsyncResponseWriter;
+using grpc::ServerBuilder;
+using grpc::ServerContext;
+using grpc::Status;
+using helloworld::HelloRequest;
+using helloworld::HelloReply;
+using helloworld::Greeter;
+
+static bool got_sigint = false;
+
+class ServerImpl final {
+ public:
+ ServerImpl() : service_(&service_cq_) {}
+
+ ~ServerImpl() {
+ server_->Shutdown();
+ rpc_cq_.Shutdown();
+ service_cq_.Shutdown();
+ }
+
+ // There is no shutdown handling in this code.
+ void Run() {
+ std::string server_address("0.0.0.0:50051");
+
+ ServerBuilder builder;
+ builder.AddListeningPort(server_address, grpc::InsecureServerCredentials());
+ builder.RegisterAsyncService(&service_);
+ server_ = builder.BuildAndStart();
+ std::cout << "Server listening on " << server_address << std::endl;
+
+ while (true) {
+ CallData* rpc = new CallData();
+ service_.RequestSayHello(&rpc->ctx, &rpc->request, &rpc->responder,
+ &rpc_cq_, rpc);
+ void* got_tag;
+ bool ok;
+ service_cq_.Next(&got_tag, &ok);
+ GPR_ASSERT(ok);
+ GPR_ASSERT(got_tag == rpc);
+
+ std::thread t(&ServerImpl::HandleRpc, this, rpc);
+ t.detach();
+ }
+ }
+
+ private:
+ struct CallData {
+ CallData() : responder(&ctx) {}
+ ServerContext ctx;
+ HelloRequest request;
+ HelloReply reply;
+ ServerAsyncResponseWriter<HelloReply> responder;
+ };
+
+ // Runs in a detached thread, processes rpc then deletes data.
+ void HandleRpc(CallData* rpc) {
+ std::string prefix("Hello ");
+ rpc->reply.set_message(prefix + rpc->request.name());
+ rpc->responder.Finish(rpc->reply, Status::OK, &rpc->ctx);
+ void* got_tag;
+ bool ok;
+ rpc_cq_.Next(&got_tag, &ok);
+ GPR_ASSERT(ok);
+ GPR_ASSERT(got_tag == &rpc->ctx);
+
+ delete rpc;
+ }
+
+ CompletionQueue service_cq_;
+ CompletionQueue rpc_cq_;
+ Greeter::AsyncService service_;
+ std::unique_ptr<Server> server_;
+};
+
+int main(int argc, char** argv) {
+ grpc_init();
+
+ ServerImpl server;
+ server.Run();
+
+ grpc_shutdown();
+ return 0;
+}