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/*
*
* 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 <forward_list>
#include <functional>
#include <sys/time.h>
#include <sys/resource.h>
#include <sys/signal.h>
#include <thread>
#include <gflags/gflags.h>
#include <grpc/support/alloc.h>
#include <grpc/support/host_port.h>
#include <grpc++/async_unary_call.h>
#include <grpc++/config.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 <gtest/gtest.h>
#include "src/cpp/server/thread_pool.h"
#include "test/core/util/grpc_profiler.h"
#include "test/cpp/qps/qpstest.pb.h"
#include "test/cpp/qps/server.h"
#include <grpc/grpc.h>
#include <grpc/support/log.h>
namespace grpc {
namespace testing {
class AsyncQpsServerTest : public Server {
public:
AsyncQpsServerTest(const ServerConfig& config, int port)
: srv_cq_(), async_service_(&srv_cq_), server_(nullptr) {
char* server_address = NULL;
gpr_join_host_port(&server_address, "::", port);
ServerBuilder builder;
builder.AddListeningPort(server_address, InsecureServerCredentials());
gpr_free(server_address);
builder.RegisterAsyncService(&async_service_);
server_ = builder.BuildAndStart();
using namespace std::placeholders;
request_unary_ = std::bind(&TestService::AsyncService::RequestUnaryCall,
&async_service_, _1, _2, _3, &srv_cq_, _4);
for (int i = 0; i < 100; i++) {
contexts_.push_front(
new ServerRpcContextUnaryImpl<SimpleRequest, SimpleResponse>(
request_unary_, UnaryCall));
}
for (int i = 0; i < config.threads(); i++) {
threads_.push_back(std::thread([=]() {
// Wait until work is available or we are shutting down
bool ok;
void* got_tag;
while (srv_cq_.Next(&got_tag, &ok)) {
if (ok) {
ServerRpcContext* ctx = detag(got_tag);
// The tag is a pointer to an RPC context to invoke
if (ctx->RunNextState() == false) {
// this RPC context is done, so refresh it
ctx->Reset();
}
}
}
return;
}));
}
}
~AsyncQpsServerTest() {
server_->Shutdown();
srv_cq_.Shutdown();
for (auto& thr : threads_) {
thr.join();
}
while (!contexts_.empty()) {
delete contexts_.front();
contexts_.pop_front();
}
}
private:
class ServerRpcContext {
public:
ServerRpcContext() {}
virtual ~ServerRpcContext(){};
virtual bool RunNextState() = 0; // do next state, return false if all done
virtual void Reset() = 0; // start this back at a clean state
};
static void* tag(ServerRpcContext* func) {
return reinterpret_cast<void*>(func);
}
static ServerRpcContext* detag(void* tag) {
return reinterpret_cast<ServerRpcContext*>(tag);
}
template <class RequestType, class ResponseType>
class ServerRpcContextUnaryImpl : public ServerRpcContext {
public:
ServerRpcContextUnaryImpl(
std::function<void(ServerContext*, RequestType*,
grpc::ServerAsyncResponseWriter<ResponseType>*,
void*)> request_method,
std::function<grpc::Status(const RequestType*, ResponseType*)>
invoke_method)
: next_state_(&ServerRpcContextUnaryImpl::invoker),
request_method_(request_method),
invoke_method_(invoke_method),
response_writer_(&srv_ctx_) {
request_method_(&srv_ctx_, &req_, &response_writer_,
AsyncQpsServerTest::tag(this));
}
~ServerRpcContextUnaryImpl() GRPC_OVERRIDE {}
bool RunNextState() GRPC_OVERRIDE { return (this->*next_state_)(); }
void Reset() GRPC_OVERRIDE {
srv_ctx_ = ServerContext();
req_ = RequestType();
response_writer_ =
grpc::ServerAsyncResponseWriter<ResponseType>(&srv_ctx_);
// Then request the method
next_state_ = &ServerRpcContextUnaryImpl::invoker;
request_method_(&srv_ctx_, &req_, &response_writer_,
AsyncQpsServerTest::tag(this));
}
private:
bool finisher() { return false; }
bool invoker() {
ResponseType response;
// Call the RPC processing function
grpc::Status status = invoke_method_(&req_, &response);
// Have the response writer work and invoke on_finish when done
next_state_ = &ServerRpcContextUnaryImpl::finisher;
response_writer_.Finish(response, status, AsyncQpsServerTest::tag(this));
return true;
}
ServerContext srv_ctx_;
RequestType req_;
bool (ServerRpcContextUnaryImpl::*next_state_)();
std::function<void(ServerContext*, RequestType*,
grpc::ServerAsyncResponseWriter<ResponseType>*, void*)>
request_method_;
std::function<grpc::Status(const RequestType*, ResponseType*)>
invoke_method_;
grpc::ServerAsyncResponseWriter<ResponseType> response_writer_;
};
static Status UnaryCall(const SimpleRequest* request,
SimpleResponse* response) {
if (request->has_response_size() && request->response_size() > 0) {
if (!SetPayload(request->response_type(), request->response_size(),
response->mutable_payload())) {
return Status(grpc::StatusCode::INTERNAL, "Error creating payload.");
}
}
return Status::OK;
}
CompletionQueue srv_cq_;
TestService::AsyncService async_service_;
std::vector<std::thread> threads_;
std::unique_ptr<grpc::Server> server_;
std::function<void(ServerContext*, SimpleRequest*,
grpc::ServerAsyncResponseWriter<SimpleResponse>*, void*)>
request_unary_;
std::forward_list<ServerRpcContext*> contexts_;
};
std::unique_ptr<Server> CreateAsyncServer(const ServerConfig& config,
int port) {
return std::unique_ptr<Server>(new AsyncQpsServerTest(config, port));
}
} // namespace testing
} // namespace grpc
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