mirror of
https://github.com/mariadb-corporation/mariadb-columnstore-engine.git
synced 2025-04-18 21:44:02 +03:00
86 lines
1.9 KiB
C++
86 lines
1.9 KiB
C++
/* Copyright (C) 2014 InfiniDB, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; version 2 of
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the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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/***********************************************************************
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* $Id: dmlresultbuffer.cpp 927 2013-01-21 14:11:25Z rdempsey $
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*
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*
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***********************************************************************/
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/** @file */
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#include "dmlresultbuffer.h"
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namespace dmlprocessor
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{
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DMLResultBuffer::DMLResultBuffer()
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: fBufferSize(1), fFull(0)
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{
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}
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DMLResultBuffer::DMLResultBuffer(int bufferSize)
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: fBufferSize(bufferSize), fFull(0)
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{
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}
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DMLResultBuffer::~DMLResultBuffer()
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{
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fResultBuffer.clear();
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}
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void DMLResultBuffer::put(dmlpackageprocessor::DMLPackageProcessor::DMLResult result, int sessionID)
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{
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scoped_lock lock(fMutex);
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if (fFull == fBufferSize)
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{
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while (fFull == fBufferSize)
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fCond.wait(lock);
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}
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ResultPair rp;
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rp.result = result;
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rp.sessionID = sessionID;
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fResultBuffer.push_back(rp);
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++fFull;
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fCond.notify_one();
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}
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DMLResultBuffer::ResultPair DMLResultBuffer::get()
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{
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scoped_lock lk(fMutex);
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if (fFull == 0)
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{
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while (fFull == 0)
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fCond.wait(lk);
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}
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ResultPair rp = fResultBuffer[0];
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fResultBuffer.pop_front();
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--fFull;
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fCond.notify_one();
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return rp;
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}
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} //namespace dmlprocessor
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