LCOV - code coverage report
Current view: directory - netwerk/cache - nsCacheDevice.h (source / functions) Found Hit Coverage
Test: app.info Lines: 2 2 100.0 %
Date: 2012-06-02 Functions: 3 2 66.7 %

       1                 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
       2                 :  *
       3                 :  * ***** BEGIN LICENSE BLOCK *****
       4                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       5                 :  *
       6                 :  * The contents of this file are subject to the Mozilla Public License Version
       7                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       8                 :  * the License. You may obtain a copy of the License at
       9                 :  * http://www.mozilla.org/MPL/
      10                 :  *
      11                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      12                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      13                 :  * for the specific language governing rights and limitations under the
      14                 :  * License.
      15                 :  *
      16                 :  * The Original Code is nsCacheDevice.h, released
      17                 :  * February 22, 2001.
      18                 :  *
      19                 :  * The Initial Developer of the Original Code is
      20                 :  * Netscape Communications Corporation.
      21                 :  * Portions created by the Initial Developer are Copyright (C) 2001
      22                 :  * the Initial Developer. All Rights Reserved.
      23                 :  *
      24                 :  * Contributor(s):
      25                 :  *   Gordon Sheridan, 22-February-2001
      26                 :  *
      27                 :  * Alternatively, the contents of this file may be used under the terms of
      28                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      29                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      30                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      31                 :  * of those above. If you wish to allow use of your version of this file only
      32                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      33                 :  * use your version of this file under the terms of the MPL, indicate your
      34                 :  * decision by deleting the provisions above and replace them with the notice
      35                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      36                 :  * the provisions above, a recipient may use your version of this file under
      37                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      38                 :  *
      39                 :  * ***** END LICENSE BLOCK ***** */
      40                 : 
      41                 : #ifndef _nsCacheDevice_h_
      42                 : #define _nsCacheDevice_h_
      43                 : 
      44                 : #include "nspr.h"
      45                 : #include "nsError.h"
      46                 : #include "nsICache.h"
      47                 : 
      48                 : class nsIFile;
      49                 : class nsCString;
      50                 : class nsCacheEntry;
      51                 : class nsICacheVisitor;
      52                 : class nsIInputStream;
      53                 : class nsIOutputStream;
      54                 : 
      55                 : /******************************************************************************
      56                 : * nsCacheDevice
      57                 : *******************************************************************************/
      58                 : class nsCacheDevice {
      59                 : public:
      60             280 :     nsCacheDevice() { MOZ_COUNT_CTOR(nsCacheDevice); }
      61             560 :     virtual ~nsCacheDevice() { MOZ_COUNT_DTOR(nsCacheDevice); }
      62                 : 
      63                 :     virtual nsresult Init() = 0;
      64                 :     virtual nsresult Shutdown() = 0;
      65                 : 
      66                 :     virtual const char *   GetDeviceID(void) = 0;
      67                 :     virtual nsCacheEntry * FindEntry( nsCString * key, bool *collision ) = 0;
      68                 : 
      69                 :     virtual nsresult DeactivateEntry( nsCacheEntry * entry ) = 0;
      70                 :     virtual nsresult BindEntry( nsCacheEntry * entry ) = 0;
      71                 :     virtual void     DoomEntry( nsCacheEntry * entry ) = 0;
      72                 : 
      73                 :     virtual nsresult OpenInputStreamForEntry(nsCacheEntry *     entry,
      74                 :                                              nsCacheAccessMode  mode,
      75                 :                                              PRUint32           offset,
      76                 :                                              nsIInputStream **  result) = 0;
      77                 : 
      78                 :     virtual nsresult OpenOutputStreamForEntry(nsCacheEntry *     entry,
      79                 :                                               nsCacheAccessMode  mode,
      80                 :                                               PRUint32           offset,
      81                 :                                               nsIOutputStream ** result) = 0;
      82                 : 
      83                 :     virtual nsresult GetFileForEntry( nsCacheEntry *    entry,
      84                 :                                       nsIFile **        result ) = 0;
      85                 : 
      86                 :     virtual nsresult OnDataSizeChange( nsCacheEntry * entry, PRInt32 deltaSize ) = 0;
      87                 : 
      88                 :     virtual nsresult Visit(nsICacheVisitor * visitor) = 0;
      89                 : 
      90                 :     /**
      91                 :      * Device must evict entries associated with clientID.  If clientID == nsnull, all
      92                 :      * entries must be evicted.  Active entries must be doomed, rather than evicted.
      93                 :      */
      94                 :     virtual nsresult EvictEntries(const char * clientID) = 0;
      95                 : };
      96                 : 
      97                 : #endif // _nsCacheDevice_h_

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