pjs/lib/libmsg/msgfcach.h

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#ifndef _MSGFCACH_H
#define _MSGFCACH_H
#include "ptrarray.h"
class MSG_FolderCacheElement;
class MSG_FolderCache : public XPSortedPtrArray
{
friend MSG_FolderCacheElement;
public:
MSG_FolderCache ();
virtual ~MSG_FolderCache ();
// Read the disk file into 'this', returning zero if successful
int ReadFromDisk ();
// Write the disk file based on the root folder info
int WriteToDisk (MSG_FolderInfo *root) const;
// Look up the folder in 'this' and populate the fields known in the cache
// Returns TRUE if the folder was found in the cache
XP_Bool InitializeFolder (MSG_FolderInfo *folder) const;
// Call this to free memory allocated by the cache since we
// don't need it (or trust it) at runtime.
void Depopulate ();
protected:
MSG_FolderCacheElement *GetAt (int i) const;
};
#endif // _MSGFCACH_H