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      1 /*
      2  * Copyright (C) 2007 Apple Inc. All rights reserved.
      3  * Copyright (C) 2007 Justin Haygood (jhaygood (at) reaktix.com)
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  *
      9  * 1.  Redistributions of source code must retain the above copyright
     10  *     notice, this list of conditions and the following disclaimer.
     11  * 2.  Redistributions in binary form must reproduce the above copyright
     12  *     notice, this list of conditions and the following disclaimer in the
     13  *     documentation and/or other materials provided with the distribution.
     14  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
     15  *     its contributors may be used to endorse or promote products derived
     16  *     from this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     19  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     20  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     21  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     22  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     23  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     24  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     25  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28  */
     29 
     30 #include "config.h"
     31 #include "Threading.h"
     32 
     33 #if ENABLE(SINGLE_THREADED)
     34 
     35 namespace WTF {
     36 
     37 void initializeThreading() { }
     38 ThreadIdentifier createThreadInternal(ThreadFunction, void*, const char*) { return ThreadIdentifier(); }
     39 void initializeCurrentThreadInternal(const char*) { }
     40 int waitForThreadCompletion(ThreadIdentifier, void**) { return 0; }
     41 void detachThread(ThreadIdentifier) { }
     42 ThreadIdentifier currentThread() { return ThreadIdentifier(); }
     43 bool isMainThread() { return true; }
     44 
     45 Mutex::Mutex() { }
     46 Mutex::~Mutex() { }
     47 void Mutex::lock() { }
     48 bool Mutex::tryLock() { return false; }
     49 void Mutex::unlock() { }
     50 
     51 ThreadCondition::ThreadCondition() { }
     52 ThreadCondition::~ThreadCondition() { }
     53 void ThreadCondition::wait(Mutex&) { }
     54 bool ThreadCondition::timedWait(Mutex&, double) { return false; }
     55 void ThreadCondition::signal() { }
     56 void ThreadCondition::broadcast() { }
     57 
     58 void lockAtomicallyInitializedStaticMutex() { }
     59 void unlockAtomicallyInitializedStaticMutex() { }
     60 
     61 } // namespace WebCore
     62 
     63 #endif
     64