mirror of https://gitee.com/bigwinds/arangodb
110 lines
3.3 KiB
C++
110 lines
3.3 KiB
C++
////////////////////////////////////////////////////////////////////////////////
|
|
/// DISCLAIMER
|
|
///
|
|
/// Copyright 2016-2018 ArangoDB GmbH, Cologne, Germany
|
|
///
|
|
/// 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.
|
|
///
|
|
/// Copyright holder is ArangoDB GmbH, Cologne, Germany
|
|
///
|
|
/// @author Dr. Frank Celler
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef ARANGOD_SCHEDULER_SOCKET_H
|
|
#define ARANGOD_SCHEDULER_SOCKET_H 1
|
|
|
|
#include "Basics/Common.h"
|
|
|
|
#include "Basics/StringBuffer.h"
|
|
#include "Basics/asio_ns.h"
|
|
#include "Logger/Logger.h"
|
|
|
|
namespace arangodb {
|
|
typedef std::function<void(const asio_ns::error_code& ec,
|
|
std::size_t transferred)>
|
|
AsyncHandler;
|
|
|
|
class Socket {
|
|
public:
|
|
Socket(asio_ns::io_context& ioContext, bool encrypted)
|
|
: _encrypted(encrypted), strand(ioContext) {}
|
|
|
|
Socket(Socket const& that) = delete;
|
|
|
|
Socket(Socket&& that) = delete;
|
|
|
|
virtual ~Socket() {}
|
|
|
|
bool isEncrypted() const { return _encrypted; }
|
|
|
|
bool handshake() {
|
|
if (!_encrypted || _handshakeDone) {
|
|
return true;
|
|
} else if (sslHandshake()) {
|
|
_handshakeDone = true;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void shutdown(asio_ns::error_code& ec, bool mustCloseSend,
|
|
bool mustCloseReceive) {
|
|
if (mustCloseSend) {
|
|
this->shutdownSend(ec);
|
|
if (ec && ec != asio_ns::error::not_connected) {
|
|
LOG_TOPIC(DEBUG, Logger::COMMUNICATION)
|
|
<< "shutdown send stream failed with: " << ec.message();
|
|
}
|
|
}
|
|
|
|
if (mustCloseReceive) {
|
|
this->shutdownReceive(ec);
|
|
if (ec && ec != asio_ns::error::not_connected) {
|
|
LOG_TOPIC(DEBUG, Logger::COMMUNICATION)
|
|
<< "shutdown receive stream failed with: " << ec.message();
|
|
}
|
|
}
|
|
}
|
|
|
|
public:
|
|
virtual std::string peerAddress() const = 0;
|
|
virtual int peerPort() const = 0;
|
|
virtual void setNonBlocking(bool) = 0;
|
|
virtual size_t writeSome(basics::StringBuffer* buffer,
|
|
asio_ns::error_code& ec) = 0;
|
|
virtual void asyncWrite(asio_ns::mutable_buffers_1 const& buffer,
|
|
AsyncHandler const& handler) = 0;
|
|
virtual size_t readSome(asio_ns::mutable_buffers_1 const& buffer,
|
|
asio_ns::error_code& ec) = 0;
|
|
virtual std::size_t available(asio_ns::error_code& ec) = 0;
|
|
virtual void asyncRead(asio_ns::mutable_buffers_1 const& buffer,
|
|
AsyncHandler const& handler) = 0;
|
|
virtual void close(asio_ns::error_code& ec) = 0;
|
|
|
|
protected:
|
|
virtual bool sslHandshake() = 0;
|
|
virtual void shutdownReceive(asio_ns::error_code& ec) = 0;
|
|
virtual void shutdownSend(asio_ns::error_code& ec) = 0;
|
|
|
|
private:
|
|
bool const _encrypted;
|
|
bool _handshakeDone = false;
|
|
|
|
public:
|
|
// strand to ensure the connection's handlers are not called concurrently.
|
|
asio_ns::io_context::strand strand;
|
|
};
|
|
}
|
|
|
|
#endif
|