1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/netwerk/cache/nsCacheDevice.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,63 @@
1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
1.5 + *
1.6 + * This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#ifndef _nsCacheDevice_h_
1.11 +#define _nsCacheDevice_h_
1.12 +
1.13 +#include "nspr.h"
1.14 +#include "nsError.h"
1.15 +#include "nsICache.h"
1.16 +
1.17 +class nsIFile;
1.18 +class nsCString;
1.19 +class nsCacheEntry;
1.20 +class nsICacheVisitor;
1.21 +class nsIInputStream;
1.22 +class nsIOutputStream;
1.23 +
1.24 +/******************************************************************************
1.25 +* nsCacheDevice
1.26 +*******************************************************************************/
1.27 +class nsCacheDevice {
1.28 +public:
1.29 + nsCacheDevice() { MOZ_COUNT_CTOR(nsCacheDevice); }
1.30 + virtual ~nsCacheDevice() { MOZ_COUNT_DTOR(nsCacheDevice); }
1.31 +
1.32 + virtual nsresult Init() = 0;
1.33 + virtual nsresult Shutdown() = 0;
1.34 +
1.35 + virtual const char * GetDeviceID(void) = 0;
1.36 + virtual nsCacheEntry * FindEntry( nsCString * key, bool *collision ) = 0;
1.37 +
1.38 + virtual nsresult DeactivateEntry( nsCacheEntry * entry ) = 0;
1.39 + virtual nsresult BindEntry( nsCacheEntry * entry ) = 0;
1.40 + virtual void DoomEntry( nsCacheEntry * entry ) = 0;
1.41 +
1.42 + virtual nsresult OpenInputStreamForEntry(nsCacheEntry * entry,
1.43 + nsCacheAccessMode mode,
1.44 + uint32_t offset,
1.45 + nsIInputStream ** result) = 0;
1.46 +
1.47 + virtual nsresult OpenOutputStreamForEntry(nsCacheEntry * entry,
1.48 + nsCacheAccessMode mode,
1.49 + uint32_t offset,
1.50 + nsIOutputStream ** result) = 0;
1.51 +
1.52 + virtual nsresult GetFileForEntry( nsCacheEntry * entry,
1.53 + nsIFile ** result ) = 0;
1.54 +
1.55 + virtual nsresult OnDataSizeChange( nsCacheEntry * entry, int32_t deltaSize ) = 0;
1.56 +
1.57 + virtual nsresult Visit(nsICacheVisitor * visitor) = 0;
1.58 +
1.59 + /**
1.60 + * Device must evict entries associated with clientID. If clientID == nullptr, all
1.61 + * entries must be evicted. Active entries must be doomed, rather than evicted.
1.62 + */
1.63 + virtual nsresult EvictEntries(const char * clientID) = 0;
1.64 +};
1.65 +
1.66 +#endif // _nsCacheDevice_h_
