1 /* 2 * Copyright (C) 2007, 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 #import "config.h" 30 #import "MainThread.h" 31 32 #import <Foundation/NSThread.h> 33 #import <wtf/Assertions.h> 34 35 @interface WTFMainThreadCaller : NSObject { 36 } 37 - (void)call; 38 @end 39 40 @implementation WTFMainThreadCaller 41 42 - (void)call 43 { 44 WTF::dispatchFunctionsFromMainThread(); 45 } 46 47 @end // implementation WTFMainThreadCaller 48 49 namespace WTF { 50 51 static WTFMainThreadCaller* staticMainThreadCaller = nil; 52 #if USE(WEB_THREAD) 53 static NSThread* webThread = nil; 54 #endif 55 56 void initializeMainThreadPlatform() 57 { 58 ASSERT(!staticMainThreadCaller); 59 staticMainThreadCaller = [[WTFMainThreadCaller alloc] init]; 60 61 #if USE(WEB_THREAD) 62 webThread = [[NSThread currentThread] retain]; 63 #endif 64 } 65 66 void scheduleDispatchFunctionsOnMainThread() 67 { 68 ASSERT(staticMainThreadCaller); 69 #if USE(WEB_THREAD) 70 [staticMainThreadCaller performSelector:@selector(call) onThread:webThread withObject:nil waitUntilDone:NO]; 71 #else 72 [staticMainThreadCaller performSelectorOnMainThread:@selector(call) withObject:nil waitUntilDone:NO]; 73 #endif 74 } 75 76 } // namespace WTF 77
