mirror of https://gitee.com/bigwinds/arangodb
114 lines
4.5 KiB
C
114 lines
4.5 KiB
C
////////////////////////////////////////////////////////////////////////////////
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/// @brief compactor
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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 2014 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 Dr. Frank Celler
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/// @author Copyright 2014, ArangoDB GmbH, Cologne, Germany
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/// @author Copyright 2011-2013, triAGENS GmbH, Cologne, Germany
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////////////////////////////////////////////////////////////////////////////////
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#ifndef ARANGODB_VOC_BASE_COMPACTOR_H
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#define ARANGODB_VOC_BASE_COMPACTOR_H 1
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#include "Basics/Common.h"
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#include "VocBase/voc-types.h"
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struct TRI_vocbase_t;
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// -----------------------------------------------------------------------------
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// --SECTION-- public functions
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief initialise the compaction blockers structure
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////////////////////////////////////////////////////////////////////////////////
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int TRI_InitCompactorVocBase (TRI_vocbase_t*);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief destroy the compaction blockers structure
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////////////////////////////////////////////////////////////////////////////////
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void TRI_DestroyCompactorVocBase (TRI_vocbase_t*);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief remove data of expired compaction blockers
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////////////////////////////////////////////////////////////////////////////////
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bool TRI_CleanupCompactorVocBase (TRI_vocbase_t*);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief insert a compaction blocker
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////////////////////////////////////////////////////////////////////////////////
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int TRI_InsertBlockerCompactorVocBase (TRI_vocbase_t*,
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double,
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TRI_voc_tick_t*);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief touch an existing compaction blocker
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////////////////////////////////////////////////////////////////////////////////
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int TRI_TouchBlockerCompactorVocBase (TRI_vocbase_t*,
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TRI_voc_tick_t,
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double);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief remove an existing compaction blocker
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////////////////////////////////////////////////////////////////////////////////
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int TRI_RemoveBlockerCompactorVocBase (TRI_vocbase_t*,
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TRI_voc_tick_t);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief atomically check-and-lock the compactor
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/// if the function returns true, then a write-lock on the compactor was
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/// acquired, which must eventually be freed by the caller
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////////////////////////////////////////////////////////////////////////////////
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bool TRI_CheckAndLockCompactorVocBase (TRI_vocbase_t*);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief unlock the compactor
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////////////////////////////////////////////////////////////////////////////////
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void TRI_UnlockCompactorVocBase (TRI_vocbase_t*);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief compactor event loop
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////////////////////////////////////////////////////////////////////////////////
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void TRI_CompactorVocBase (void*);
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#endif
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// -----------------------------------------------------------------------------
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// --SECTION-- END-OF-FILE
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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}\\|/// @page\\|// --SECTION--\\|/// @\\}"
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// End:
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