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/**
* Copyright (C) 2015 MongoDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kASIO
#include "mongo/platform/basic.h"
#include "mongo/executor/async_stream.h"
#include "mongo/executor/async_stream_common.h"
#include "mongo/util/assert_util.h"
#include "mongo/util/log.h"
namespace mongo {
namespace executor {
using asio::ip::tcp;
AsyncStream::AsyncStream(asio::io_service::strand* strand)
: _strand(strand), _stream(_strand->get_io_service()) {}
AsyncStream::~AsyncStream() {
destroyStream(&_stream, _connected);
}
void AsyncStream::connect(tcp::resolver::iterator iter, ConnectHandler&& connectHandler) {
asio::async_connect(
_stream,
std::move(iter),
// We need to wrap this with a lambda of the right signature so it compiles, even
// if we don't actually use the resolver iterator.
_strand->wrap([this, connectHandler](std::error_code ec, tcp::resolver::iterator iter) {
if (ec) {
return connectHandler(ec);
}
// We assume that our owner is responsible for keeping us alive until we call
// connectHandler, so _connected should always be a valid memory location.
ec = setStreamNonBlocking(&_stream);
if (ec) {
return connectHandler(ec);
}
ec = setStreamNoDelay(&_stream);
if (ec) {
return connectHandler(ec);
}
_connected = true;
return connectHandler(ec);
}));
}
void AsyncStream::write(asio::const_buffer buffer, StreamHandler&& streamHandler) {
writeStream(&_stream, _strand, _connected, buffer, std::move(streamHandler));
}
void AsyncStream::read(asio::mutable_buffer buffer, StreamHandler&& streamHandler) {
readStream(&_stream, _strand, _connected, buffer, std::move(streamHandler));
}
void AsyncStream::cancel() {
cancelStream(&_stream, _connected);
}
bool AsyncStream::isOpen() {
return checkIfStreamIsOpen(&_stream, _connected);
}
} // namespace executor
} // namespace mongo
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