1635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project/* 28f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * Copyright (C) 2008, 2009 Apple Inc. All rights reserved. 3635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * 4635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * Redistribution and use in source and binary forms, with or without 5635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * modification, are permitted provided that the following conditions 6635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * are met: 7635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * 8635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * 1. Redistributions of source code must retain the above copyright 9635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * notice, this list of conditions and the following disclaimer. 10635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 11635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * notice, this list of conditions and the following disclaimer in the 12635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * documentation and/or other materials provided with the distribution. 13635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * 14635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 15635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 16635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 17635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 18635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 19635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 20635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 21635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project */ 25635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 26635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project#include "config.h" 27635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project#include "Threading.h" 28635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 298f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian#include <string.h> 308f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 31635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectnamespace WTF { 32635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 33ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdochstruct NewThreadContext { 34ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch WTF_MAKE_FAST_ALLOCATED; 35ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdochpublic: 368f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian NewThreadContext(ThreadFunction entryPoint, void* data, const char* name) 37635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project : entryPoint(entryPoint) 38635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project , data(data) 398f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian , name(name) 408f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian { 418f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 42635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 43635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project ThreadFunction entryPoint; 44635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project void* data; 458f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian const char* name; 46635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 47635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project Mutex creationMutex; 48635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project}; 49635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 50635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectstatic void* threadEntryPoint(void* contextData) 51635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project{ 52635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project NewThreadContext* context = reinterpret_cast<NewThreadContext*>(contextData); 53635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 54d0825bca7fe65beaee391d30da42e937db621564Steve Block // Block until our creating thread has completed any extra setup work, including 55d0825bca7fe65beaee391d30da42e937db621564Steve Block // establishing ThreadIdentifier. 56635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project { 57635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project MutexLocker locker(context->creationMutex); 58635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project } 59635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 60d0825bca7fe65beaee391d30da42e937db621564Steve Block initializeCurrentThreadInternal(context->name); 61d0825bca7fe65beaee391d30da42e937db621564Steve Block 62635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project // Grab the info that we need out of the context, then deallocate it. 63635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project ThreadFunction entryPoint = context->entryPoint; 64635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project void* data = context->data; 65635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project delete context; 66635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 67635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project return entryPoint(data); 68635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project} 69635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 70635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source ProjectThreadIdentifier createThread(ThreadFunction entryPoint, void* data, const char* name) 71635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project{ 728f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // Visual Studio has a 31-character limit on thread names. Longer names will 738f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // be truncated silently, but we'd like callers to know about the limit. 748f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian#if !LOG_DISABLED 758f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (strlen(name) > 31) 768f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian LOG_ERROR("Thread name \"%s\" is longer than 31 characters and will be truncated by Visual Studio", name); 778f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian#endif 788f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 798f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian NewThreadContext* context = new NewThreadContext(entryPoint, data, name); 80635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 8144991d7282295431aa1809bf22c45850d69ec428Steve Block // Prevent the thread body from executing until we've established the thread identifier. 82635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project MutexLocker locker(context->creationMutex); 83635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 84635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project return createThreadInternal(threadEntryPoint, context, name); 85635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project} 86635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 87635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project#if PLATFORM(MAC) || PLATFORM(WIN) 88635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 89635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// This function is deprecated but needs to be kept around for backward 90635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// compatibility. Use the 3-argument version of createThread above. 91635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 92635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source ProjectThreadIdentifier createThread(ThreadFunction entryPoint, void* data); 93635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 94635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source ProjectThreadIdentifier createThread(ThreadFunction entryPoint, void* data) 95635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project{ 96635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project return createThread(entryPoint, data, 0); 97635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project} 98635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project#endif 99635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 100635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project} // namespace WTF 101