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// Copyright 2019 Google LLC
//
// 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
//
// https://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 "dap/network.h"
#include "socket.h"
#include <atomic>
#include <mutex>
#include <string>
#include <thread>
namespace {
class Impl : public dap::net::Server {
public:
Impl() : stopped{true} {}
~Impl() { stop(); }
bool start(int port,
const OnConnect& onConnect,
const OnError& onError) override {
std::unique_lock<std::mutex> lock(mutex);
stopWithLock();
socket = std::unique_ptr<dap::Socket>(
new dap::Socket("localhost", std::to_string(port).c_str()));
if (!socket->isOpen()) {
onError("Failed to open socket");
return false;
}
stopped = false;
thread = std::thread([=] {
while (true) {
if (auto rw = socket->accept()) {
onConnect(rw);
continue;
}
if (!stopped) {
onError("Failed to accept connection");
}
break;
};
});
return true;
}
void stop() override {
std::unique_lock<std::mutex> lock(mutex);
stopWithLock();
}
private:
bool isRunning() { return !stopped; }
void stopWithLock() {
if (!stopped.exchange(true)) {
socket->close();
thread.join();
}
}
std::mutex mutex;
std::thread thread;
std::unique_ptr<dap::Socket> socket;
std::atomic<bool> stopped;
OnError errorHandler;
};
} // anonymous namespace
namespace dap {
namespace net {
std::unique_ptr<Server> Server::create() {
return std::unique_ptr<Server>(new Impl());
}
std::shared_ptr<ReaderWriter> connect(const char* addr,
int port,
uint32_t timeoutMillis) {
return Socket::connect(addr, std::to_string(port).c_str(), timeoutMillis);
}
} // namespace net
} // namespace dap
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