mirror of https://gitee.com/bigwinds/arangodb
62 lines
2.0 KiB
C++
62 lines
2.0 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2014-2017 ArangoDB GmbH, Cologne, Germany
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/// Copyright 2004-2014 triAGENS 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 Daniel H. Larkin
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////////////////////////////////////////////////////////////////////////////////
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#include <stdint.h>
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#include "Basics/ConditionLocker.h"
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#include "Basics/ConditionVariable.h"
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#include "Basics/Thread.h"
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#include "Basics/voc-errors.h"
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#include "Cache/CacheManagerFeatureThreads.h"
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#include "Cache/Manager.h"
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#include "Cache/Rebalancer.h"
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using namespace arangodb;
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CacheRebalancerThread::CacheRebalancerThread(application_features::ApplicationServer& server,
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cache::Manager* manager, uint64_t interval)
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: Thread(server, "CacheRebalancerThread"),
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_manager(manager),
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_rebalancer(_manager),
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_fullInterval(interval),
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_shortInterval(10000) {}
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CacheRebalancerThread::~CacheRebalancerThread() { shutdown(); }
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void CacheRebalancerThread::beginShutdown() {
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Thread::beginShutdown();
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CONDITION_LOCKER(guard, _condition);
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guard.signal();
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}
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void CacheRebalancerThread::run() {
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while (!isStopping()) {
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int result = _rebalancer.rebalance();
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uint64_t interval = (result != TRI_ERROR_ARANGO_BUSY) ? _fullInterval : _shortInterval;
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CONDITION_LOCKER(guard, _condition);
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guard.wait(interval);
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}
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}
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