104 lines
2.2 KiB
C
104 lines
2.2 KiB
C
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/**********************************************************************/
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/** Microsoft Windows NT **/
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/** Copyright(c) Microsoft Corp., 1998 **/
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/**********************************************************************/
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/*
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tlcach.h
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This module declares the private interface to the two level cache
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FILE HISTORY:
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BAlam 10-31-98 Initial Revision
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*/
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#ifndef _TLCACH_H_
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#define _TLCACH_H_
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//
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// Default interval between adjusting the memory cache max size
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//
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#define DEFAULT_ADJUSTMENT_TIME 60000
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DWORD
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InitializeTwoLevelCache(
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IN DWORDLONG cbMemoryCacheSize
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);
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DWORD
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ReadFileIntoMemoryCache(
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IN HANDLE hFile,
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IN DWORD cbFile,
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OUT DWORD * pcbRequired,
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OUT VOID ** ppvBuffer
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);
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DWORD
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ReleaseFromMemoryCache(
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IN VOID * pvBuffer,
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IN DWORD cbBuffer
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);
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DWORD
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TerminateTwoLevelCache(
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VOID
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);
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DWORD
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DumpMemoryCacheToHtml(
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IN CHAR * pszBuffer,
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IN OUT DWORD * pcbBuffer
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);
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VOID
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QueryMemoryCacheStatistics(
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IN INETA_CACHE_STATISTICS * pCacheCtrs,
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IN BOOL fClearAll
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);
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#if defined(LOOKASIDE)
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class CLookAside
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{
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public:
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CLookAside(
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ALLOC_CACHE_CONFIGURATION* paacc,
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SIZE_T caacc);
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~CLookAside();
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LPVOID
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Alloc(
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IN DWORD cbSize);
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BOOL
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Free(
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IN LPVOID pv,
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IN DWORD cbSize);
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protected:
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enum {
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HEAP_PREFIX = 8,
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HEAP_SUFFIX = 0,
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ACACHE_OVERHEAD = sizeof(DWORD),
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SIGNATURE = 'ALsT',
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SIGNATURE_X = 'XLsT',
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};
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int
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_FindAllocator(
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IN DWORD cbSize);
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DWORD m_dwSignature;
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ALLOC_CACHE_HANDLER** m_apach; // array of acaches
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ALLOC_CACHE_CONFIGURATION* m_aacc; // parallel array of config data
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SIZE_T m_cach; // number of acaches
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SIZE_T m_nMinSize;
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SIZE_T m_nMaxSize;
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};
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#endif // LOOKASIDE
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#endif
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