mirror of https://gitee.com/bigwinds/arangodb
140 lines
4.6 KiB
C++
140 lines
4.6 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// @brief Write-ahead log garbage collection thread
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///
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/// @file
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///
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/// DISCLAIMER
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///
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/// Copyright 2004-2013 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 triAGENS GmbH, Cologne, Germany
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///
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/// @author Jan Steemann
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/// @author Copyright 2011-2013, triAGENS GmbH, Cologne, Germany
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////////////////////////////////////////////////////////////////////////////////
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#include "TestThread.h"
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#include "BasicsC/logging.h"
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#include "Basics/ConditionLocker.h"
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#include "VocBase/datafile.h"
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#include "VocBase/marker.h"
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#include "VocBase/server.h"
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#include "VocBase/transaction.h"
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#include "Wal/Logfile.h"
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#include "Wal/LogfileManager.h"
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using namespace triagens::wal;
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// -----------------------------------------------------------------------------
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// --SECTION-- class TestThread
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// -----------------------------------------------------------------------------
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// -----------------------------------------------------------------------------
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// --SECTION-- constructors and destructors
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief create the collector thread
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////////////////////////////////////////////////////////////////////////////////
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TestThread::TestThread (LogfileManager* logfileManager)
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: Thread("WalCollector"),
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_logfileManager(logfileManager),
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_condition(),
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_stop(0) {
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allowAsynchronousCancelation();
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief destroy the collector thread
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////////////////////////////////////////////////////////////////////////////////
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TestThread::~TestThread () {
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}
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// -----------------------------------------------------------------------------
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// --SECTION-- public methods
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief stops the collector thread
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////////////////////////////////////////////////////////////////////////////////
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void TestThread::stop () {
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if (_stop > 0) {
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return;
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}
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_stop = 1;
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_condition.signal();
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while (_stop != 2) {
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usleep(1000);
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}
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}
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// -----------------------------------------------------------------------------
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// --SECTION-- Thread methods
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief main loop
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////////////////////////////////////////////////////////////////////////////////
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void TestThread::run () {
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uint64_t i = 0;
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while (_stop == 0) {
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size_t s;
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void* p;
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if (i % 1 == 0) {
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s = sizeof(TRI_doc_begin_transaction_marker_t);
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p = TRI_Allocate(TRI_UNKNOWN_MEM_ZONE, s, true);
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TRI_doc_begin_transaction_marker_t* marker = static_cast<TRI_doc_begin_transaction_marker_t*>(p);
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TRI_InitMarker((char*) p, TRI_DOC_MARKER_BEGIN_TRANSACTION, s);
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marker->_tid = i;
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marker->_numCollections = 0;
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}
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else {
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s = sizeof(TRI_doc_commit_transaction_marker_t);
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p = TRI_Allocate(TRI_UNKNOWN_MEM_ZONE, s, true);
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TRI_doc_commit_transaction_marker_t* marker = static_cast<TRI_doc_commit_transaction_marker_t*>(p);
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TRI_InitMarker((char*) p, TRI_DOC_MARKER_COMMIT_TRANSACTION, s);
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marker->_tid = i - 1;
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}
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if (i % 500000 == 0) {
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LOG_INFO("now at: %d", (int) i);
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}
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_logfileManager->allocateAndWrite(p, static_cast<uint32_t>(s), false);
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++i;
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TRI_Free(TRI_UNKNOWN_MEM_ZONE, p);
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}
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_stop = 2;
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}
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// Local Variables:
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// mode: outline-minor
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// outline-regexp: "/// @brief\\|/// {@inheritDoc}\\|/// @addtogroup\\|/// @page\\|// --SECTION--\\|/// @\\}"
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// End:
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