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74 lines
2.5 KiB
C++
74 lines
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is nsCacheDevice.h, released February 22, 2001.
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*
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* The Initial Developer of the Original Code is Netscape Communications
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* Corporation. Portions created by Netscape are
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* Copyright (C) 2001 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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* Gordon Sheridan, 22-February-2001
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*/
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#ifndef _nsCacheDevice_h_
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#define _nsCacheDevice_h_
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#include "nspr.h"
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#include "nsError.h"
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#include "nsICache.h"
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class nsIFile;
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class nsCString;
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class nsCacheEntry;
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class nsICacheVisitor;
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class nsITransport;
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/******************************************************************************
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* nsCacheDevice
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*******************************************************************************/
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class nsCacheDevice {
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public:
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nsCacheDevice() { MOZ_COUNT_CTOR(nsCacheDevice); }
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virtual ~nsCacheDevice() { MOZ_COUNT_DTOR(nsCacheDevice); }
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virtual nsresult Init() = 0;
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virtual nsresult Shutdown() = 0;
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virtual const char * GetDeviceID(void) = 0;
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virtual nsCacheEntry * FindEntry( nsCString * key ) = 0;
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virtual nsresult DeactivateEntry( nsCacheEntry * entry ) = 0;
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virtual nsresult BindEntry( nsCacheEntry * entry ) = 0;
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virtual void DoomEntry( nsCacheEntry * entry ) = 0;
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virtual nsresult GetTransportForEntry( nsCacheEntry * entry,
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nsCacheAccessMode mode,
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nsITransport **result ) = 0;
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virtual nsresult GetFileForEntry( nsCacheEntry * entry,
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nsIFile ** result ) = 0;
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virtual nsresult OnDataSizeChange( nsCacheEntry * entry, PRInt32 deltaSize ) = 0;
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virtual nsresult Visit(nsICacheVisitor * visitor) = 0;
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/**
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* Device must evict entries associated with clientID. If clientID == nsnull, all
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* entries must be evicted. Active entries must be doomed, rather than evicted.
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*/
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virtual nsresult EvictEntries(const char * clientID) = 0;
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};
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#endif // _nsCacheDevice_h_
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