1 /*

     2  * Copyright (C) 2007 Apple Inc. All rights reserved.

     3  * Copyright (C) 2007 Justin Haygood (jhaygood@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