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/*
*
* Copyright 2019 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#include "test/cpp/microbenchmarks/callback_test_service.h"
namespace grpc {
namespace testing {
namespace {
std::string ToString(const grpc::string_ref& r) {
return std::string(r.data(), r.size());
}
int GetIntValueFromMetadataHelper(
const char* key,
const std::multimap<grpc::string_ref, grpc::string_ref>& metadata,
int default_value) {
if (metadata.find(key) != metadata.end()) {
std::istringstream iss(ToString(metadata.find(key)->second));
iss >> default_value;
}
return default_value;
}
int GetIntValueFromMetadata(
const char* key,
const std::multimap<grpc::string_ref, grpc::string_ref>& metadata,
int default_value) {
return GetIntValueFromMetadataHelper(key, metadata, default_value);
}
} // namespace
ServerUnaryReactor* CallbackStreamingTestService::Echo(
CallbackServerContext* context, const EchoRequest* /*request*/,
EchoResponse* response) {
int response_msgs_size = GetIntValueFromMetadata(
kServerMessageSize, context->client_metadata(), 0);
if (response_msgs_size > 0) {
response->set_message(std::string(response_msgs_size, 'a'));
} else {
response->set_message("");
}
auto* reactor = context->DefaultReactor();
reactor->Finish(grpc::Status::OK);
return reactor;
}
ServerBidiReactor<EchoRequest, EchoResponse>*
CallbackStreamingTestService::BidiStream(CallbackServerContext* context) {
class Reactor : public ServerBidiReactor<EchoRequest, EchoResponse> {
public:
explicit Reactor(CallbackServerContext* context) {
message_size_ = GetIntValueFromMetadata(kServerMessageSize,
context->client_metadata(), 0);
StartRead(&request_);
}
void OnDone() override {
GPR_ASSERT(finished_);
delete this;
}
void OnCancel() override {}
void OnReadDone(bool ok) override {
if (!ok) {
// Stream is over
Finish(grpc::Status::OK);
finished_ = true;
return;
}
if (message_size_ > 0) {
response_.set_message(std::string(message_size_, 'a'));
} else {
response_.set_message("");
}
StartWrite(&response_);
}
void OnWriteDone(bool ok) override {
if (!ok) {
gpr_log(GPR_ERROR, "Server write failed");
return;
}
StartRead(&request_);
}
private:
EchoRequest request_;
EchoResponse response_;
int message_size_;
bool finished_{false};
};
return new Reactor(context);
}
} // namespace testing
} // namespace grpc
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