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1 /* | |
2 * Copyright (C) 2013 Google 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 are | |
6 * met: | |
7 * | |
8 * * Redistributions of source code must retain the above copyright | |
9 * notice, this list of conditions and the following disclaimer. | |
10 * * Redistributions in binary form must reproduce the above | |
11 * copyright notice, this list of conditions and the following disclaimer | |
12 * in the documentation and/or other materials provided with the | |
13 * distribution. | |
14 * * Neither the name of Google Inc. nor the names of its | |
15 * contributors may be used to endorse or promote products derived from | |
16 * this software without specific prior written permission. | |
17 * | |
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
29 */ | |
30 | |
31 #include "wtf/WTF.h" | |
32 | |
33 #include "wtf/Assertions.h" | |
34 #include "wtf/Functional.h" | |
35 #include "wtf/StackUtil.h" | |
36 #include "wtf/ThreadSpecific.h" | |
37 #include "wtf/Threading.h" | |
38 #include "wtf/allocator/Partitions.h" | |
39 #include "wtf/text/AtomicString.h" | |
40 #include "wtf/text/StringStatics.h" | |
41 #include "wtf/typed_arrays/ArrayBufferContents.h" | |
42 | |
43 namespace WTF { | |
44 | |
45 extern void initializeThreading(); | |
46 | |
47 bool s_initialized; | |
48 void (*s_callOnMainThreadFunction)(MainThreadFunction, void*); | |
49 ThreadIdentifier s_mainThreadIdentifier; | |
50 | |
51 namespace internal { | |
52 | |
53 void callOnMainThread(MainThreadFunction* function, void* context) { | |
54 (*s_callOnMainThreadFunction)(function, context); | |
55 } | |
56 | |
57 } // namespace internal | |
58 | |
59 bool isMainThread() { | |
60 return currentThread() == s_mainThreadIdentifier; | |
61 } | |
62 | |
63 void initialize(void (*callOnMainThreadFunction)(MainThreadFunction, void*)) { | |
64 // WTF, and Blink in general, cannot handle being re-initialized. | |
65 // Make that explicit here. | |
66 RELEASE_ASSERT(!s_initialized); | |
67 s_initialized = true; | |
68 initializeCurrentThread(); | |
69 s_mainThreadIdentifier = currentThread(); | |
70 | |
71 initializeThreading(); | |
72 | |
73 s_callOnMainThreadFunction = callOnMainThreadFunction; | |
74 internal::initializeMainThreadStackEstimate(); | |
75 AtomicString::init(); | |
76 StringStatics::init(); | |
77 } | |
78 | |
79 } // namespace WTF | |
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