168 lines
3 KiB
C++
168 lines
3 KiB
C++
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/**********************************************************************/
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/** Microsoft Windows NT **/
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/** Copyright(c) Microsoft Corp., 1994 **/
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/**********************************************************************/
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/*
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blobcach.hxx
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This module declares the private interface to the Blob cache
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FILE HISTORY:
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MCourage 18-Dec-1997 Created
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*/
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#ifndef _BLOBCACH_HXX_
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#define _BLOBCACH_HXX_
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typedef BOOL (*PBLOBFILTERRTN)(PBLOB_HEADER pBlob, PVOID pv);
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BOOL
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BlobCache_Initialize(
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VOID
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);
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VOID
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BlobCache_Terminate(
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VOID
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);
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BOOL
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CacheBlob(
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IN PBLOB_HEADER pBlob
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);
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VOID
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DecacheBlob(
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IN PBLOB_HEADER pBlob
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);
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VOID
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FlushBlobCache(
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VOID
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);
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VOID
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FilteredFlushBlobCache (
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IN PBLOBFILTERRTN pFilterRoutine,
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IN PVOID pv
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);
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VOID
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FilteredFlushURIBlobCache (
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IN PBLOBFILTERRTN pFilterRoutine,
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IN PVOID pv
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);
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BOOL
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CheckoutBlob(
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IN LPCSTR pstrPath,
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IN ULONG cchPath,
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IN DWORD dwService,
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IN DWORD dwInstance,
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IN ULONG iDemux,
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OUT PBLOB_HEADER * ppBlob
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);
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BOOL
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CheckoutBlobEntry(
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IN PBLOB_HEADER pBlob
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);
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VOID
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CheckinBlob(
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IN PBLOB_HEADER pBlob
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);
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class TS_BLOB_FLUSH_STATE
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{
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public:
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LIST_ENTRY ListHead;
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PBLOBFILTERRTN pfnFilter;
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PVOID pvParm;
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};
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class CBlobCacheStats
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{
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private:
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DWORD BlobsCached; // # of blobs currently in the cache
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DWORD TotalBlobsCached; // # of blobs added to the cache ever
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DWORD Hits; // cache hits
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DWORD Misses; // cache misses
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DWORD Flushes; // flushes due to dir change or other
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DWORD TotalFlushed; // # of entries ever flushed from the cache
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public:
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CBlobCacheStats()
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: BlobsCached(0),
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TotalBlobsCached(0),
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Hits(0),
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Misses(0),
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Flushes(0),
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TotalFlushed(0)
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{}
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BOOL DumpToHtml(CHAR * pchBuffer, LPDWORD lpcbBuffer) const;
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BOOL QueryStats(INETA_CACHE_STATISTICS * pCacheCtrs) const;
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DWORD GetBlobsCached() const
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{
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return BlobsCached;
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}
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DWORD GetTotalBlobsCached() const
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{
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return TotalBlobsCached;
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}
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DWORD GetHits() const
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{
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return Hits;
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}
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DWORD GetMisses() const
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{
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return Misses;
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}
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DWORD GetFlushes() const
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{
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return Flushes;
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}
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DWORD GetTotalFlushed() const
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{
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return TotalFlushed;
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}
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VOID IncBlobsCached(VOID)
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{
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InterlockedIncrement((LONG *)&BlobsCached);
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InterlockedIncrement((LONG *)&TotalBlobsCached);
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}
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VOID DecBlobsCached(VOID)
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{
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InterlockedDecrement((LONG *)&BlobsCached);
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}
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VOID IncHits(VOID)
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{
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InterlockedIncrement((LONG *)&Hits);
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}
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VOID IncMisses(VOID)
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{
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InterlockedIncrement((LONG *)&Misses);
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}
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VOID IncFlushes(VOID)
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{
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InterlockedIncrement((LONG *)&Flushes);
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}
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};
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#endif
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