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// Copyright 2004-present Facebook. All Rights Reserved.
#include <signal.h>
#include <fstream>
#include <future>
#include <folly/Memory.h>
#include <folly/String.h>
#include <folly/init/Init.h>
#include <folly/portability/GFlags.h>
#include "rsocket/RSocket.h"
#include "rsocket/RSocketServiceHandler.h"
#include "rsocket/framing/FramedDuplexConnection.h"
#include "rsocket/transports/tcp/TcpDuplexConnection.h"
#include "rsocket/transports/tcp/TcpConnectionAcceptor.h"
#include "tck-test/MarbleProcessor.h"
using namespace folly;
using namespace rsocket;
using namespace yarpl;
using namespace yarpl::flowable;
using namespace yarpl::single;
DEFINE_string(ip, "0.0.0.0", "IP to bind on");
DEFINE_int32(port, 9898, "port to listen to");
DEFINE_string(test_file, "../tck-test/servertest.txt", "test file to run");
namespace {
struct MarbleStore {
std::map<std::pair<std::string, std::string>, std::string> reqRespMarbles;
std::map<std::pair<std::string, std::string>, std::string> streamMarbles;
std::map<std::pair<std::string, std::string>, std::string> channelMarbles;
};
MarbleStore parseMarbles(const std::string& fileName) {
MarbleStore ms;
std::ifstream input(fileName);
if (!input.good()) {
LOG(FATAL) << "Could not read from file '" << fileName << "'";
}
std::string line;
while (std::getline(input, line)) {
std::vector<folly::StringPiece> args;
folly::split("%%", line, args);
CHECK(args.size() == 4);
if (args[0] == "rr") {
ms.reqRespMarbles.emplace(
std::make_pair(args[1].toString(), args[2].toString()),
args[3].toString());
} else if (args[0] == "rs") {
ms.streamMarbles.emplace(
std::make_pair(args[1].toString(), args[2].toString()),
args[3].toString());
} else if (args[0] == "channel") {
ms.channelMarbles.emplace(
std::make_pair(args[1].toString(), args[2].toString()),
args[3].toString());
} else {
LOG(FATAL) << "Unrecognized token " << args[0];
}
}
return ms;
}
} // namespace
class ServerResponder : public RSocketResponder {
public:
ServerResponder() {
marbles_ = parseMarbles(FLAGS_test_file);
}
yarpl::Reference<Flowable<Payload>> handleRequestStream(
Payload request,
StreamId) override {
LOG(INFO) << "handleRequestStream " << request;
std::string data = request.data->moveToFbString().toStdString();
std::string metadata = request.metadata->moveToFbString().toStdString();
auto it = marbles_.streamMarbles.find(std::make_pair(data, metadata));
if (it == marbles_.streamMarbles.end()) {
return yarpl::flowable::Flowables::error<rsocket::Payload>(
std::logic_error("No MarbleHandler found"));
} else {
auto marbleProcessor = std::make_shared<tck::MarbleProcessor>(it->second);
auto lambda = [marbleProcessor](
Reference<yarpl::flowable::Subscriber<rsocket::Payload>> subscriber,
int64_t requested) mutable {
return marbleProcessor->run(subscriber, requested);
};
return Flowable<rsocket::Payload>::create(std::move(lambda));
}
}
yarpl::Reference<Single<Payload>> handleRequestResponse(
Payload request,
StreamId) override {
LOG(INFO) << "handleRequestResponse " << request;
std::string data = request.data->moveToFbString().toStdString();
std::string metadata = request.metadata->moveToFbString().toStdString();
auto it = marbles_.reqRespMarbles.find(std::make_pair(data, metadata));
if (it == marbles_.reqRespMarbles.end()) {
return yarpl::single::Singles::error<rsocket::Payload>(
std::logic_error("No MarbleHandler found"));
} else {
auto marbleProcessor = std::make_shared<tck::MarbleProcessor>(it->second);
auto lambda =
[marbleProcessor](
yarpl::Reference<yarpl::single::SingleObserver<rsocket::Payload>>
subscriber) {
subscriber->onSubscribe(SingleSubscriptions::empty());
return marbleProcessor->run(subscriber);
};
return Single<rsocket::Payload>::create(std::move(lambda));
}
}
private:
MarbleStore marbles_;
};
class ServiceHandler : public RSocketServiceHandler {
public:
folly::Expected<RSocketConnectionParams, RSocketException> onNewSetup(
const SetupParameters&) override {
return RSocketConnectionParams(std::make_shared<ServerResponder>());
}
void onNewRSocketState(
std::shared_ptr<RSocketServerState> state,
ResumeIdentificationToken token) override {
store_.lock()->insert({token, std::move(state)});
}
folly::Expected<std::shared_ptr<RSocketServerState>, RSocketException>
onResume(ResumeIdentificationToken token) override {
auto itr = store_->find(token);
CHECK(itr != store_->end());
return itr->second;
};
private:
folly::Synchronized<
std::map<ResumeIdentificationToken, std::shared_ptr<RSocketServerState>>,
std::mutex>
store_;
};
std::promise<void> terminate;
static void signal_handler(int signal) {
LOG(INFO) << "Terminating program after receiving signal " << signal;
terminate.set_value();
}
int main(int argc, char* argv[]) {
FLAGS_logtostderr = true;
folly::init(&argc, &argv);
signal(SIGINT, signal_handler);
signal(SIGTERM, signal_handler);
TcpConnectionAcceptor::Options opts;
opts.address = folly::SocketAddress(FLAGS_ip, FLAGS_port);
opts.threads = 1;
// RSocket server accepting on TCP
auto rs = RSocket::createServer(
std::make_unique<TcpConnectionAcceptor>(std::move(opts)));
auto rawRs = rs.get();
auto serverThread = std::thread(
[=] { rawRs->startAndPark(std::make_shared<ServiceHandler>()); });
terminate.get_future().wait();
rs->unpark();
serverThread.join();
return 0;
}