source: webkit/trunk/JavaScriptCore/runtime/TimeoutChecker.h@ 67583

Last change on this file since 67583 was 64036, checked in by Simon Hausmann, 15 years ago

[Qt] Use the default timeout interval for JS as the HTML tokenizer delay for setHtml()

Patch by Tor Arne Vestbø <​[email protected]> on 2009-10-30
Reviewed by Kenneth Rohde Christiansen.

This ensures that long-running JavaScript (for example due to a modal alert() dialog),
will not trigger a deferred load after only 500ms (the default tokenizer delay) while
still giving a reasonable timeout (10 seconds) to prevent deadlock.

​https://bugs.webkit.org/show_bug.cgi?id=29381

JavaScriptCore:

  • runtime/TimeoutChecker.h: Add getter for the timeout interval

WebKit/qt:

  • Api/qwebframe.cpp: Document the behaviour
  • WebCoreSupport/FrameLoaderClientQt.cpp: set the custom tokenizer delay for substitute loads
  • tests/qwebframe/tst_qwebframe.cpp: Add test
File size: 2.5 KB
Line 
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#ifndef TimeoutChecker_h
30#define TimeoutChecker_h
31
32#include <wtf/Assertions.h>
33
34namespace JSC {
35
36 class ExecState;
37
38 class TimeoutChecker {
39 public:
40 TimeoutChecker();
41
42 void setTimeoutInterval(unsigned timeoutInterval) { m_timeoutInterval = timeoutInterval; }
43 unsigned timeoutInterval() const { return m_timeoutInterval; }
44
45 unsigned ticksUntilNextCheck() { return m_ticksUntilNextCheck; }
46
47 void start()
48 {
49 if (!m_startCount)
50 reset();
51 ++m_startCount;
52 }
53
54 void stop()
55 {
56 ASSERT(m_startCount);
57 --m_startCount;
58 }
59
60 void reset();
61
62 bool didTimeOut(ExecState*);
63
64 private:
65 unsigned m_timeoutInterval;
66 unsigned m_timeAtLastCheck;
67 unsigned m_timeExecuting;
68 unsigned m_startCount;
69 unsigned m_ticksUntilNextCheck;
70 };
71
72} // namespace JSC
73
74#endif // TimeoutChecker_h
Note: See TracBrowser for help on using the repository browser.