mirror of https://gitee.com/bigwinds/arangodb
111 lines
3.6 KiB
C++
111 lines
3.6 KiB
C++
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief Write-ahead log garbage collection thread
|
|
///
|
|
/// @file
|
|
///
|
|
/// DISCLAIMER
|
|
///
|
|
/// Copyright 2004-2013 triAGENS 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 triAGENS GmbH, Cologne, Germany
|
|
///
|
|
/// @author Jan Steemann
|
|
/// @author Copyright 2011-2013, triAGENS GmbH, Cologne, Germany
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#include "CollectorThread.h"
|
|
#include "BasicsC/logging.h"
|
|
#include "Basics/ConditionLocker.h"
|
|
#include "Wal/LogfileManager.h"
|
|
|
|
using namespace triagens::wal;
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// --SECTION-- constructors and destructors
|
|
// -----------------------------------------------------------------------------
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief create the collector thread
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
CollectorThread::CollectorThread (LogfileManager* logfileManager)
|
|
: Thread("WalCollector"),
|
|
_logfileManager(logfileManager),
|
|
_condition(),
|
|
_stop(0) {
|
|
|
|
allowAsynchronousCancelation();
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief destroy the collector thread
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
CollectorThread::~CollectorThread () {
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// --SECTION-- public methods
|
|
// -----------------------------------------------------------------------------
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief initialises the collector thread
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
bool CollectorThread::init () {
|
|
return true;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief stops the collector thread
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void CollectorThread::stop () {
|
|
if (_stop > 0) {
|
|
return;
|
|
}
|
|
|
|
_stop = 1;
|
|
_condition.signal();
|
|
|
|
while (_stop != 2) {
|
|
usleep(1000);
|
|
}
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// --SECTION-- Thread methods
|
|
// -----------------------------------------------------------------------------
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief main loop
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
void CollectorThread::run () {
|
|
while (_stop == 0) {
|
|
CONDITION_LOCKER(guard, _condition);
|
|
|
|
// TODO: implement collection
|
|
guard.wait(1000000);
|
|
}
|
|
|
|
_stop = 2;
|
|
}
|
|
|
|
// Local Variables:
|
|
// mode: outline-minor
|
|
// outline-regexp: "/// @brief\\|/// {@inheritDoc}\\|/// @addtogroup\\|/// @page\\|// --SECTION--\\|/// @\\}"
|
|
// End:
|