1/*
2 * Copyright (C) 2010 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 "V8GCForContextDispose.h"
33
34#include <wtf/StdLibExtras.h>
35
36namespace WebCore {
37
38V8GCForContextDispose::V8GCForContextDispose()
39    : m_pseudoIdleTimer(this, &V8GCForContextDispose::pseudoIdleTimerFired)
40{
41}
42
43void V8GCForContextDispose::notifyContextDisposed()
44{
45    v8::V8::ContextDisposedNotification();
46    if (!m_pseudoIdleTimer.isActive())
47        m_pseudoIdleTimer.startOneShot(0.8);
48}
49
50void V8GCForContextDispose::notifyIdleSooner(double maximumFireInterval)
51{
52    if (m_pseudoIdleTimer.isActive()) {
53        double nextFireInterval = m_pseudoIdleTimer.nextFireInterval();
54        if (nextFireInterval > maximumFireInterval) {
55            m_pseudoIdleTimer.stop();
56            m_pseudoIdleTimer.startOneShot(maximumFireInterval);
57        }
58    }
59}
60
61V8GCForContextDispose& V8GCForContextDispose::instance()
62{
63    DEFINE_STATIC_LOCAL(V8GCForContextDispose, staticInstance, ());
64    return staticInstance;
65}
66
67void V8GCForContextDispose::pseudoIdleTimerFired(Timer<V8GCForContextDispose>*)
68{
69    v8::V8::IdleNotification();
70}
71
72} // namespace WebCore
73