gecko/layout/style/IncrementalClearCOMRuleArray.h
Andrew McCreight 11a6356253 Bug 861449 - Incremental css::Rule destroyer. r=dbaron
Destroying large arrays of css::Rules during page teardown can take
multiple milliseconds in incremental CC. To reduce CC pauses, this
patch introduces a new class nsIncrementalClearCOMRuleArray that uses
the deferred finalizer to incrementally destroy these rule arrays.
2015-06-15 12:34:23 -07:00

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_IncrementalClearCOMRuleArray_h
#define mozilla_IncrementalClearCOMRuleArray_h
#include "nsCOMArray.h"
namespace mozilla {
namespace css {
class Rule;
} // namespace css
class IncrementalClearCOMRuleArray : public nsCOMArray<css::Rule>
{
public:
IncrementalClearCOMRuleArray() {}
~IncrementalClearCOMRuleArray() { Clear(); }
void Clear();
};
} // namespace mozilla
#endif /* !defined(mozilla_IncrementalClearCOMRuleArray_h) */