1 /*

     2  * Copyright (C) 2008 Apple 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

     6  * are met:

     7  *

     8  * 1.  Redistributions of source code must retain the above copyright

     9  *     notice, this list of conditions and the following disclaimer. 

    10  * 2.  Redistributions in binary form must reproduce the above copyright

    11  *     notice, this list of conditions and the following disclaimer in the

    12  *     documentation and/or other materials provided with the distribution. 

    13  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of

    14  *     its contributors may be used to endorse or promote products derived

    15  *     from this software without specific prior written permission. 

    16  *

    17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY

    18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

    19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

    20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY

    21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

    22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

    23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

    24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

    25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

    26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    27  */

    28 

    29 #include "config.h"

    30 #include "InitializeThreading.h"

    31 

    32 #include "Collector.h"

    33 #include "dtoa.h"

    34 #include "Identifier.h"

    35 #include "JSGlobalObject.h"

    36 #include "UString.h"

    37 #include <wtf/DateMath.h>

    38 #include <wtf/Threading.h>

    39 

    40 using namespace WTF;

    41 

    42 namespace JSC {

    43 

    44 #if PLATFORM(DARWIN) && ENABLE(JSC_MULTIPLE_THREADS)

    45 static pthread_once_t initializeThreadingKeyOnce = PTHREAD_ONCE_INIT;

    46 #endif

    47 

    48 static void initializeThreadingOnce()

    49 {

    50     WTF::initializeThreading();

    51     initializeUString();

    52 #if ENABLE(JSC_MULTIPLE_THREADS)

    53     s_dtoaP5Mutex = new Mutex;

    54     WTF::initializeDates();

    55 #endif

    56 }

    57 

    58 void initializeThreading()

    59 {

    60 #if PLATFORM(DARWIN) && ENABLE(JSC_MULTIPLE_THREADS)

    61     pthread_once(&initializeThreadingKeyOnce, initializeThreadingOnce);

    62 #else

    63     static bool initializedThreading = false;

    64     if (!initializedThreading) {

    65         initializeThreadingOnce();

    66         initializedThreading = true;

    67     }

    68 #endif

    69 }

    70 

    71 } // namespace JSC