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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.
#ifndef dap_network_h
#define dap_network_h
#include <functional>
#include <memory>
#include <stdint.h>
namespace dap {
class ReaderWriter;
namespace net {
// connect() connects to the given TCP address and port.
// If timeoutMillis is non-zero and no connection was made before timeoutMillis
// milliseconds, then nullptr is returned.
std::shared_ptr<ReaderWriter> connect(const char* addr,
int port,
uint32_t timeoutMillis = 0);
// Server implements a basic TCP server.
class Server {
// ignoreErrors() matches the OnError signature, and does nothing.
static inline void ignoreErrors(const char*) {}
public:
using OnError = std::function<void(const char*)>;
using OnConnect = std::function<void(const std::shared_ptr<ReaderWriter>&)>;
virtual ~Server() = default;
// create() constructs and returns a new Server.
static std::unique_ptr<Server> create();
// start() begins listening for connections on localhost and the given port.
// callback will be called for each connection.
// onError will be called for any connection errors.
virtual bool start(int port,
const OnConnect& callback,
const OnError& onError = ignoreErrors) = 0;
// start() begins listening for connections on the given specific address and port.
// callback will be called for each connection.
// onError will be called for any connection errors.
virtual bool start(const char* address,
int port,
const OnConnect& callback,
const OnError& onError = ignoreErrors) = 0;
// stop() stops listening for connections.
// stop() is implicitly called on destruction.
virtual void stop() = 0;
};
} // namespace net
} // namespace dap
#endif // dap_network_h
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