mirror of https://gitee.com/bigwinds/arangodb
122 lines
3.7 KiB
C++
122 lines
3.7 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2016-2018 ArangoDB GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Dr. Frank Celler
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////////////////////////////////////////////////////////////////////////////////
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#ifndef ARANGOD_SCHEDULER_SOCKET_H
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#define ARANGOD_SCHEDULER_SOCKET_H 1
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#include "Basics/Common.h"
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#include "Basics/StringBuffer.h"
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#include "Basics/asio_ns.h"
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#include "GeneralServer/GeneralServer.h"
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#include "Logger/Logger.h"
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namespace arangodb {
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typedef std::function<void(const asio_ns::error_code& ec, std::size_t transferred)> AsyncHandler;
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class Socket {
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public:
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Socket(rest::GeneralServer::IoContext& context, bool encrypted)
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: _context(context), _encrypted(encrypted) {
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_context._clients.fetch_add(1, std::memory_order_release);
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}
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Socket(Socket const& that) = delete;
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Socket(Socket&& that) = delete;
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virtual ~Socket() {
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_context._clients.fetch_sub(1, std::memory_order_release);
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}
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bool isEncrypted() const { return _encrypted; }
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bool handshake() {
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if (!_encrypted || _handshakeDone) {
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return true;
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} else if (sslHandshake()) {
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_handshakeDone = true;
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return true;
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}
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return false;
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}
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void shutdown(asio_ns::error_code& ec, bool mustCloseSend, bool mustCloseReceive) {
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if (mustCloseSend) {
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this->shutdownSend(ec);
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if (ec && ec != asio_ns::error::not_connected) {
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LOG_TOPIC("6c54f", DEBUG, Logger::COMMUNICATION)
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<< "shutdown send stream failed with: " << ec.message();
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}
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}
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if (mustCloseReceive) {
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this->shutdownReceive(ec);
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if (ec && ec != asio_ns::error::not_connected) {
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LOG_TOPIC("215b7", DEBUG, Logger::COMMUNICATION)
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<< "shutdown receive stream failed with: " << ec.message();
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}
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}
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}
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void post(std::function<void()>&& handler) {
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_context.post(std::move(handler));
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}
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bool runningInThisThread() { return true; }
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uint64_t clients() const {
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return _context._clients.load(std::memory_order_acquire);
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}
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rest::GeneralServer::IoContext& context() { return _context; }
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public:
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virtual std::string peerAddress() const = 0;
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virtual int peerPort() const = 0;
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virtual void setNonBlocking(bool) = 0;
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virtual size_t writeSome(basics::StringBuffer* buffer, asio_ns::error_code& ec) = 0;
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virtual void asyncWrite(asio_ns::mutable_buffers_1 const& buffer,
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AsyncHandler const& handler) = 0;
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virtual size_t readSome(asio_ns::mutable_buffers_1 const& buffer,
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asio_ns::error_code& ec) = 0;
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virtual std::size_t available(asio_ns::error_code& ec) = 0;
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virtual void asyncRead(asio_ns::mutable_buffers_1 const& buffer,
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AsyncHandler const& handler) = 0;
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virtual void close(asio_ns::error_code& ec) = 0;
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protected:
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virtual bool sslHandshake() = 0;
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virtual void shutdownReceive(asio_ns::error_code& ec) = 0;
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virtual void shutdownSend(asio_ns::error_code& ec) = 0;
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protected:
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rest::GeneralServer::IoContext& _context;
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private:
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bool const _encrypted;
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bool _handshakeDone = false;
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};
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} // namespace arangodb
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#endif
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