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| 1 | /*! | ||
| 2 | * \copy | ||
| 3 | * Copyright (c) 2009-2015, Cisco Systems | ||
| 4 | * All rights reserved. | ||
| 5 | * | ||
| 6 | * Redistribution and use in source and binary forms, with or without | ||
| 7 | * modification, are permitted provided that the following conditions | ||
| 8 | * are met: | ||
| 9 | * | ||
| 10 | * * Redistributions of source code must retain the above copyright | ||
| 11 | * notice, this list of conditions and the following disclaimer. | ||
| 12 | * | ||
| 13 | * * Redistributions in binary form must reproduce the above copyright | ||
| 14 | * notice, this list of conditions and the following disclaimer in | ||
| 15 | * the documentation and/or other materials provided with the | ||
| 16 | * distribution. | ||
| 17 | * | ||
| 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
| 19 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
| 20 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | ||
| 21 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | ||
| 22 | * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | ||
| 23 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, | ||
| 24 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | ||
| 25 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | ||
| 26 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
| 27 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN | ||
| 28 | * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | ||
| 29 | * POSSIBILITY OF SUCH DAMAGE. | ||
| 30 | * | ||
| 31 | * | ||
| 32 | * \file WelsThreadPool.cpp | ||
| 33 | * | ||
| 34 | * \brief functions for Thread Pool | ||
| 35 | * | ||
| 36 | * \date 5/09/2012 Created | ||
| 37 | * | ||
| 38 | ************************************************************************************* | ||
| 39 | */ | ||
| 40 | |||
| 41 | #include "WelsThread.h" | ||
| 42 | |||
| 43 | namespace WelsCommon { | ||
| 44 | |||
| 45 | CWelsThread::CWelsThread() : | ||
| 46 | m_hThread (0), | ||
| 47 | m_bRunning (false), | ||
| 48 | m_bEndFlag (false) { | ||
| 49 | WELS_THREAD_ERROR_CODE rc = WelsEventOpen (&m_hEvent); | ||
| 50 | |||
| 51 | if (WELS_THREAD_ERROR_OK != rc) { | ||
| 52 | m_hEvent = NULL; | ||
| 53 | } | ||
| 54 | } | ||
| 55 | |||
| 56 | CWelsThread::~CWelsThread() { | ||
| 57 | Kill(); | ||
| 58 | WelsEventClose (&m_hEvent); | ||
| 59 | m_hEvent = NULL; | ||
| 60 | } | ||
| 61 | |||
| 62 | void CWelsThread::Thread() { | ||
| 63 | while (true) { | ||
| 64 | WelsEventWait (&m_hEvent); | ||
| 65 | |||
| 66 | if (GetEndFlag()) { | ||
| 67 | break; | ||
| 68 | } | ||
| 69 | |||
| 70 | ExecuteTask(); | ||
| 71 | } | ||
| 72 | |||
| 73 | SetRunning (false); | ||
| 74 | } | ||
| 75 | |||
| 76 | WELS_THREAD_ERROR_CODE CWelsThread::Start() { | ||
| 77 | if (NULL == m_hEvent) { | ||
| 78 | return WELS_THREAD_ERROR_GENERAL; | ||
| 79 | } | ||
| 80 | |||
| 81 | if (GetRunning()) { | ||
| 82 | return WELS_THREAD_ERROR_OK; | ||
| 83 | } | ||
| 84 | |||
| 85 | SetEndFlag (false); | ||
| 86 | |||
| 87 | WELS_THREAD_ERROR_CODE rc = WelsThreadCreate (&m_hThread, | ||
| 88 | (LPWELS_THREAD_ROUTINE)TheThread, this, 0); | ||
| 89 | |||
| 90 | if (WELS_THREAD_ERROR_OK != rc) { | ||
| 91 | return rc; | ||
| 92 | } | ||
| 93 | |||
| 94 | while (!GetRunning()) { | ||
| 95 | WelsSleep (1); | ||
| 96 | } | ||
| 97 | |||
| 98 | return WELS_THREAD_ERROR_OK; | ||
| 99 | } | ||
| 100 | |||
| 101 | void CWelsThread::Kill() { | ||
| 102 | if (!GetRunning()) { | ||
| 103 | return; | ||
| 104 | } | ||
| 105 | |||
| 106 | SetEndFlag (true); | ||
| 107 | |||
| 108 | WelsEventSignal (&m_hEvent); | ||
| 109 | WelsThreadJoin (m_hThread); | ||
| 110 | return; | ||
| 111 | } | ||
| 112 | |||
| 113 | WELS_THREAD_ROUTINE_TYPE CWelsThread::TheThread (void* pParam) { | ||
| 114 | CWelsThread* pThis = static_cast<CWelsThread*> (pParam); | ||
| 115 | |||
| 116 | pThis->SetRunning (true); | ||
| 117 | |||
| 118 | pThis->Thread(); | ||
| 119 | |||
| 120 | WELS_THREAD_ROUTINE_RETURN (NULL); | ||
| 121 | } | ||
| 122 | |||
| 123 | } | ||
| 124 | |||
| 125 | |||