mirror of https://gitee.com/bigwinds/arangodb
65 lines
1.9 KiB
C++
65 lines
1.9 KiB
C++
////////////////////////////////////////////////////////////////////////////////
|
|
/// DISCLAIMER
|
|
///
|
|
/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
|
|
/// Copyright 2004-2014 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 ArangoDB GmbH, Cologne, Germany
|
|
///
|
|
/// @author Dr. Frank Celler
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef ARANGOD_MMFILES_MMFILES_CLEANUP_THREAD_H
|
|
#define ARANGOD_MMFILES_MMFILES_CLEANUP_THREAD_H 1
|
|
|
|
#include "Basics/Common.h"
|
|
#include "Basics/ConditionVariable.h"
|
|
#include "Basics/Thread.h"
|
|
|
|
struct TRI_vocbase_t;
|
|
|
|
namespace arangodb {
|
|
class LogicalCollection;
|
|
|
|
class MMFilesCleanupThread final : public Thread {
|
|
public:
|
|
explicit MMFilesCleanupThread(TRI_vocbase_t* vocbase);
|
|
~MMFilesCleanupThread();
|
|
|
|
void signal();
|
|
|
|
protected:
|
|
void run() override;
|
|
|
|
private:
|
|
/// @brief cleanup interval in microseconds
|
|
static constexpr unsigned cleanupInterval() { return (1 * 1000 * 1000); }
|
|
|
|
/// @brief how many cleanup iterations until query cursors are cleaned
|
|
static constexpr uint64_t cleanupCursorIterations() { return 3; }
|
|
|
|
/// @brief checks all datafiles of a collection
|
|
void cleanupCollection(arangodb::LogicalCollection* collection);
|
|
|
|
private:
|
|
TRI_vocbase_t* _vocbase;
|
|
|
|
arangodb::basics::ConditionVariable _condition;
|
|
};
|
|
|
|
} // namespace arangodb
|
|
|
|
#endif
|