/*
* Copyright (C) 2010 Google Inc. All rights reserved.
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* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
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* contributors may be used to endorse or promote products derived from
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*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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#include "config.h"
#include "bindings/v8/V8GCForContextDispose.h"
#include "wtf/StdLibExtras.h"
namespace WebCore {
V8GCForContextDispose::V8GCForContextDispose()
: m_pseudoIdleTimer(this, &V8GCForContextDispose::pseudoIdleTimerFired)
, m_didDisposeContextForMainFrame(false)
{
}
void V8GCForContextDispose::notifyContextDisposed(bool isMainFrame)
{
m_didDisposeContextForMainFrame = m_didDisposeContextForMainFrame || isMainFrame;
v8::V8::ContextDisposedNotification();
if (!m_pseudoIdleTimer.isActive())
m_pseudoIdleTimer.startOneShot(0.8, FROM_HERE);
}
void V8GCForContextDispose::notifyIdleSooner(double maximumFireInterval)
{
if (m_pseudoIdleTimer.isActive()) {
double nextFireInterval = m_pseudoIdleTimer.nextFireInterval();
if (nextFireInterval > maximumFireInterval) {
m_pseudoIdleTimer.stop();
m_pseudoIdleTimer.startOneShot(maximumFireInterval, FROM_HERE);
}
}
}
V8GCForContextDispose& V8GCForContextDispose::instanceTemplate()
{
DEFINE_STATIC_LOCAL(V8GCForContextDispose, staticInstance, ());
return staticInstance;
}
void V8GCForContextDispose::pseudoIdleTimerFired(Timer<V8GCForContextDispose>*)
{
const int longIdlePauseInMs = 1000;
const int shortIdlePauseInMs = 10;
int hint = m_didDisposeContextForMainFrame ? longIdlePauseInMs : shortIdlePauseInMs;
v8::V8::IdleNotification(hint);
m_didDisposeContextForMainFrame = false;
}
} // namespace WebCore