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1 /* | |
2 * Copyright (C) 2009 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 "config.h" | |
32 #include "MainThread.h" | |
33 | |
34 #include "Assertions.h" | |
35 #include "ChromiumThreading.h" | |
36 #include "Threading.h" | |
37 #include <wtf/Functional.h> | |
38 | |
39 namespace WTF { | |
40 | |
41 static ThreadIdentifier mainThreadIdentifier; | |
42 | |
43 void initializeMainThread() | |
44 { | |
45 static bool initializedMainThread; | |
46 if (initializedMainThread) | |
47 return; | |
48 initializedMainThread = true; | |
49 | |
50 mainThreadIdentifier = currentThread(); | |
51 } | |
52 | |
53 void callOnMainThread(MainThreadFunction* function, void* context) | |
54 { | |
55 ChromiumThreading::callOnMainThread(function, context); | |
56 } | |
57 | |
58 static void callFunctionObject(void* context) | |
59 { | |
60 Function<void()>* function = static_cast<Function<void()>*>(context); | |
61 (*function)(); | |
62 delete function; | |
63 } | |
64 | |
65 void callOnMainThread(const Function<void()>& function) | |
66 { | |
67 callOnMainThread(callFunctionObject, new Function<void()>(function)); | |
68 } | |
69 | |
70 void callOnMainThreadAndWait(MainThreadFunction*, void*) | |
71 { | |
72 ASSERT_NOT_REACHED(); | |
73 } | |
74 | |
75 void setMainThreadCallbacksPaused(bool) | |
76 { | |
77 ASSERT_NOT_REACHED(); | |
78 } | |
79 | |
80 bool isMainThread() | |
81 { | |
82 return currentThread() == mainThreadIdentifier; | |
83 } | |
84 | |
85 } // namespace WTF | |
86 | |
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