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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 
initializeThreadingOnce()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 
initializeThreading()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
72