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1 /*
2  * Copyright (C) 2009 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  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23  * THE POSSIBILITY OF SUCH DAMAGE.
24  */
25 
26 #include "config.h"
27 #include "LoaderRunLoopCF.h"
28 
29 #include <wtf/Threading.h>
30 
31 namespace WebCore {
32 
33 static CFRunLoopRef loaderRunLoopObject = 0;
34 
emptyPerform(void *)35 static void emptyPerform(void*)
36 {
37 }
38 
runLoaderThread(void *)39 static void* runLoaderThread(void*)
40 {
41     loaderRunLoopObject = CFRunLoopGetCurrent();
42 
43     // Must add a source to the run loop to prevent CFRunLoopRun() from exiting.
44     CFRunLoopSourceContext ctxt = {0, (void*)1 /*must be non-NULL*/, 0, 0, 0, 0, 0, 0, 0, emptyPerform};
45     CFRunLoopSourceRef bogusSource = CFRunLoopSourceCreate(0, 0, &ctxt);
46     CFRunLoopAddSource(loaderRunLoopObject, bogusSource, kCFRunLoopDefaultMode);
47 
48     CFRunLoopRun();
49 
50     return 0;
51 }
52 
loaderRunLoop()53 CFRunLoopRef loaderRunLoop()
54 {
55     ASSERT(isMainThread());
56     if (!loaderRunLoopObject) {
57         createThread(runLoaderThread, 0, "WebCore: CFNetwork Loader");
58         while (!loaderRunLoopObject) {
59             // FIXME: Sleep 10? that can't be right...
60             Sleep(10);
61         }
62     }
63     return loaderRunLoopObject;
64 }
65 
66 }
67