/*
* ==============================================================================
* Name : OOMHandler.h
* Part of : Webcore / Platform
* Interface :
* Description :
* Version : %Version%
*
* Copyright (c) 2006, Nokia Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* 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
* distribution.
* * Neither the name of the Nokia Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
*
* ==============================================================================
*/
#ifndef __OOMHANDLER_H__
#define __OOMHANDLER_H__
#include <e32def.h>
#include <MemoryManager.h>
namespace WebCore {
/*
* This handles collecting memory when OOM occurs, by clearing the cache.
* The StopScheduler has two collection modes, low and middle priority.
* When memory is at a certain threshold, all collectors low and above are called.
* When memory is at a critical threshold, all collectors middle and above are called.
* We want the cache to always clear whenever OOM happens so this collector's
* priority is high.
*/
class OOMHandler : public MMemoryCollector
{
public:
OOMHandler();
virtual ~OOMHandler();
// from collector
TUint Collect(TUint aRequired);
void Restore();
TOOMPriority Priority() { return EOOM_PriorityHigh; }
};
}
#endif // END OF FILE