99 lines
2.5 KiB
C++
99 lines
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public
|
|
* License Version 1.1 (the "License"); you may not use this file
|
|
* except in compliance with the License. You may obtain a copy of
|
|
* the License at http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS
|
|
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
|
|
* implied. See the License for the specific language governing
|
|
* rights and limitations under the License.
|
|
*
|
|
* The Original Code is mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All
|
|
* Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*/
|
|
|
|
/*
|
|
* nsDiskModule. The disk cache module that stores the cache objects
|
|
* on the disk.
|
|
*
|
|
* Gagan Saksena 02/03/98
|
|
*
|
|
*/
|
|
#ifndef _nsDiskModule_H_
|
|
#define _nsDiskModule_H_
|
|
|
|
#include "nsCacheModule.h"
|
|
#include "nsCachePref.h"
|
|
#include "mcom_db.h"
|
|
|
|
class nsDiskModule : public nsCacheModule
|
|
{
|
|
|
|
public:
|
|
nsDiskModule(const PRUint32 size = nsCachePref::GetInstance()->DiskCacheSize());
|
|
~nsDiskModule();
|
|
|
|
// Cache module interface
|
|
PRBool AddObject(nsCacheObject* io_pObject);
|
|
|
|
PRUint32 AverageSize(void) const;
|
|
|
|
PRBool Contains(nsCacheObject* io_pObject) const;
|
|
PRBool Contains(const char* i_url) const;
|
|
|
|
void GarbageCollect(void);
|
|
|
|
nsCacheObject* GetObject(const PRUint32 i_index) const;
|
|
nsCacheObject* GetObject(const char* i_url) const;
|
|
|
|
nsStream* GetStreamFor(const nsCacheObject* i_pObject);
|
|
|
|
PRBool Remove(const char* i_url);
|
|
PRBool Remove(nsCacheObject* pObject);
|
|
PRBool Remove(const PRUint32 i_index);
|
|
|
|
// To do cleanup set size to zero. Else initialize disk cache
|
|
void SetSize(const PRUint32 i_size);
|
|
|
|
PRBool Revalidate(void);
|
|
|
|
protected:
|
|
|
|
PRBool ReduceSizeTo(const PRUint32 i_NewSize);
|
|
|
|
private:
|
|
enum sync_frequency
|
|
{
|
|
EVERYTIME,
|
|
IDLE,
|
|
NEVER
|
|
} m_Sync;
|
|
|
|
PRBool InitDB(void);
|
|
|
|
nsDiskModule(const nsDiskModule& dm);
|
|
nsDiskModule& operator=(const nsDiskModule& dm);
|
|
|
|
DB* m_pDB;
|
|
};
|
|
|
|
inline
|
|
PRUint32 nsDiskModule::AverageSize(void) const
|
|
{
|
|
MonitorLocker ml((nsDiskModule*)this);
|
|
if (Entries()>0)
|
|
{
|
|
return (PRUint32)(m_SizeInUse/m_Entries);
|
|
}
|
|
return 0;
|
|
}
|
|
#endif
|