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| 1 /* | |
| 2 * Copyright (C) 2009, 2011 Google Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions are | |
| 6 * met: | |
| 7 * | |
| 8 * * Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * * Redistributions in binary form must reproduce the above | |
| 11 * copyright notice, this list of conditions and the following disclaimer | |
| 12 * in the documentation and/or other materials provided with the | |
| 13 * distribution. | |
| 14 * * Neither the name of Google Inc. nor the names of its | |
| 15 * contributors may be used to endorse or promote products derived from | |
| 16 * this software without specific prior written permission. | |
| 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 FOR | |
| 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 */ | |
| 30 | |
| 31 #include "config.h" | |
| 32 | |
| 33 #if USE(PTHREADS) | |
| 34 | |
| 35 #include "ThreadIdentifierDataPthreads.h" | |
| 36 | |
| 37 #include "Threading.h" | |
| 38 | |
| 39 #if OS(ANDROID) || OS(HURD) | |
| 40 // PTHREAD_KEYS_MAX is not defined in bionic nor in Hurd, so explicitly define i
t here. | |
| 41 #define PTHREAD_KEYS_MAX 1024 | |
| 42 #else | |
| 43 #include <limits.h> | |
| 44 #endif | |
| 45 | |
| 46 namespace WTF { | |
| 47 | |
| 48 pthread_key_t ThreadIdentifierData::m_key = PTHREAD_KEYS_MAX; | |
| 49 | |
| 50 void threadDidExit(ThreadIdentifier); | |
| 51 | |
| 52 ThreadIdentifierData::~ThreadIdentifierData() | |
| 53 { | |
| 54 threadDidExit(m_identifier); | |
| 55 } | |
| 56 | |
| 57 void ThreadIdentifierData::initializeOnce() | |
| 58 { | |
| 59 if (pthread_key_create(&m_key, destruct)) | |
| 60 CRASH(); | |
| 61 } | |
| 62 | |
| 63 ThreadIdentifier ThreadIdentifierData::identifier() | |
| 64 { | |
| 65 ASSERT(m_key != PTHREAD_KEYS_MAX); | |
| 66 ThreadIdentifierData* threadIdentifierData = static_cast<ThreadIdentifierDat
a*>(pthread_getspecific(m_key)); | |
| 67 | |
| 68 return threadIdentifierData ? threadIdentifierData->m_identifier : 0; | |
| 69 } | |
| 70 | |
| 71 void ThreadIdentifierData::initialize(ThreadIdentifier id) | |
| 72 { | |
| 73 ASSERT(!identifier()); | |
| 74 pthread_setspecific(m_key, new ThreadIdentifierData(id)); | |
| 75 } | |
| 76 | |
| 77 void ThreadIdentifierData::destruct(void* data) | |
| 78 { | |
| 79 ThreadIdentifierData* threadIdentifierData = static_cast<ThreadIdentifierDat
a*>(data); | |
| 80 ASSERT(threadIdentifierData); | |
| 81 | |
| 82 if (threadIdentifierData->m_isDestroyedOnce) { | |
| 83 delete threadIdentifierData; | |
| 84 return; | |
| 85 } | |
| 86 | |
| 87 threadIdentifierData->m_isDestroyedOnce = true; | |
| 88 // Re-setting the value for key causes another destruct() call after all oth
er thread-specific destructors were called. | |
| 89 pthread_setspecific(m_key, threadIdentifierData); | |
| 90 } | |
| 91 | |
| 92 } // namespace WTF | |
| 93 | |
| 94 #endif // USE(PTHREADS) | |
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Chromium Code Reviews
Issue 14238015:
Move Source/WTF/wtf to Source/wtf (Closed)
Base URL: svn://svn.chromium.org/blink/trunk