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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 <atomic>
#include <thread>
#include <grpc++/resource_quota.h>
#include <grpc++/security/server_credentials.h>
#include <grpc++/server.h>
#include <grpc++/server_builder.h>
#include <grpc++/server_context.h>
#include <grpc/grpc.h>
#include <grpc/support/alloc.h>
#include <grpc/support/host_port.h>
#include <grpc/support/log.h>
#include "src/proto/grpc/testing/services.grpc.pb.h"
#include "test/cpp/qps/server.h"
#include "test/cpp/qps/usage_timer.h"
namespace grpc {
namespace testing {
class BenchmarkServiceImpl final : public BenchmarkService::Service {
public:
Status UnaryCall(ServerContext* context, const SimpleRequest* request,
SimpleResponse* response) override {
auto s = SetResponse(request, response);
if (!s.ok()) {
return s;
}
return Status::OK;
}
Status StreamingCall(
ServerContext* context,
ServerReaderWriter<SimpleResponse, SimpleRequest>* stream) override {
SimpleRequest request;
while (stream->Read(&request)) {
SimpleResponse response;
auto s = SetResponse(&request, &response);
if (!s.ok()) {
return s;
}
if (!stream->Write(response)) {
return Status(StatusCode::INTERNAL, "Server couldn't respond");
}
}
return Status::OK;
}
Status StreamingFromClient(ServerContext* context,
ServerReader<SimpleRequest>* stream,
SimpleResponse* response) override {
auto s = ClientPull(context, stream, response);
if (!s.ok()) {
return s;
}
return Status::OK;
}
Status StreamingFromServer(ServerContext* context,
const SimpleRequest* request,
ServerWriter<SimpleResponse>* stream) override {
SimpleResponse response;
auto s = SetResponse(request, &response);
if (!s.ok()) {
return s;
}
return ServerPush(context, stream, response, nullptr);
}
Status StreamingBothWays(
ServerContext* context,
ServerReaderWriter<SimpleResponse, SimpleRequest>* stream) override {
// Read the first client message to setup server response
SimpleRequest request;
if (!stream->Read(&request)) {
return Status::OK;
}
SimpleResponse response;
auto s = SetResponse(&request, &response);
if (!s.ok()) {
return s;
}
std::atomic_bool done;
Status sp;
std::thread t([context, stream, &response, &done, &sp]() {
sp = ServerPush(context, stream, response, [&done]() {
return done.load(std::memory_order_relaxed);
});
});
SimpleResponse dummy;
auto cp = ClientPull(context, stream, &dummy);
done.store(true, std::memory_order_relaxed); // can be lazy
t.join();
if (!cp.ok()) {
return cp;
}
if (!sp.ok()) {
return sp;
}
return Status::OK;
}
private:
static Status ClientPull(ServerContext* context,
ReaderInterface<SimpleRequest>* stream,
SimpleResponse* response) {
SimpleRequest request;
while (stream->Read(&request)) {
}
if (request.response_size() > 0) {
if (!Server::SetPayload(request.response_type(), request.response_size(),
response->mutable_payload())) {
return Status(grpc::StatusCode::INTERNAL, "Error creating payload.");
}
}
return Status::OK;
}
static Status ServerPush(ServerContext* context,
WriterInterface<SimpleResponse>* stream,
const SimpleResponse& response,
std::function<bool()> done) {
while ((done == nullptr) || !done()) {
// TODO(vjpai): Add potential for rate-pacing on this
if (!stream->Write(response)) {
return Status(StatusCode::INTERNAL, "Server couldn't push");
}
}
return Status::OK;
}
static Status SetResponse(const SimpleRequest* request,
SimpleResponse* response) {
if (request->response_size() > 0) {
if (!Server::SetPayload(request->response_type(),
request->response_size(),
response->mutable_payload())) {
return Status(grpc::StatusCode::INTERNAL, "Error creating payload.");
}
}
return Status::OK;
}
};
class SynchronousServer final : public grpc::testing::Server {
public:
explicit SynchronousServer(const ServerConfig& config) : Server(config) {
ServerBuilder builder;
char* server_address = NULL;
gpr_join_host_port(&server_address, "::", port());
builder.AddListeningPort(server_address,
Server::CreateServerCredentials(config));
gpr_free(server_address);
if (config.resource_quota_size() > 0) {
builder.SetResourceQuota(ResourceQuota("AsyncQpsServerTest")
.Resize(config.resource_quota_size()));
}
builder.RegisterService(&service_);
impl_ = builder.BuildAndStart();
}
private:
BenchmarkServiceImpl service_;
std::unique_ptr<grpc::Server> impl_;
};
std::unique_ptr<grpc::testing::Server> CreateSynchronousServer(
const ServerConfig& config) {
return std::unique_ptr<Server>(new SynchronousServer(config));
}
} // namespace testing
} // namespace grpc
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