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480 lines
10 KiB
480 lines
10 KiB
/*++
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Copyright (c) 1998 Microsoft Corporation
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Module Name :
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tsunamip.hxx
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Abstract:
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This module defines private structures and functions for
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tsunami module
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Author:
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Murali R. Krishnan ( MuraliK ) 13-Jan-1995
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Project:
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Tsuanmi Library ( caching and logging module for InternetServices)
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Revision History:
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MuraliK 20-Feb-1995 Added File System Types.
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MuraliK 22-Jan-1996 Cache UNC Impersonation Token
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MCourage 11-Dec-1997 Moved to cache2 for cache rewrite
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--*/
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#ifndef _TSUNAMIP_HXX_
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#define _TSUNAMIP_HXX_
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/************************************************************
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* Include Headers
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************************************************************/
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# if defined ( __cplusplus)
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extern "C" {
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# endif
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#include <nt.h>
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#include <ntrtl.h>
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#include <nturtl.h>
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#include <windows.h>
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#include <basetyps.h>
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#include <lmcons.h>
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# if defined ( __cplusplus)
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}
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# endif
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#include <iis64.h>
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#include <inetinfo.h>
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#include "iperfctr.hxx"
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#include <refb.hxx>
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#include "dbgutil.h"
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#include <iistypes.hxx>
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#include <tsvroot.hxx>
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#include <tsunami.hxx>
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#include <reftrace.h>
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#include "tsmemp.hxx"
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#include "globals.hxx"
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#include "dbgmacro.hxx"
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#define ENABLE_DIR_MONITOR 1
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#include <dirmon.h>
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//
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// Setting TSUNAMI_REF_DEBUG to a non-zero value will enable reference
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// count logging.
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//
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#if DBG
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#define TSUNAMI_REF_DEBUG 1
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#else // !DBG
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#define TSUNAMI_REF_DEBUG 0
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#endif // DBG
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//
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// Tracing support.
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//
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#if TSUNAMI_REF_DEBUG
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extern PTRACE_LOG RefTraceLog;
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#define TSUNAMI_TRACE( refcount, context ) \
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if( RefTraceLog != NULL ) { \
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WriteRefTraceLog( \
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RefTraceLog, \
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(refcount), \
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(context) \
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); \
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} else
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#else // !TSUNAMI_REF_DEBUG
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#define TSUNAMI_TRACE( refcount, context )
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#endif // TSUNAMI_REF_DEBUG
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/************************************************************
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* Type Definitions
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************************************************************/
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struct _CACHE_OBJECT;
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class CBlobKey;
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class CVRootDirMonitorEntry;
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class CFileHashTable;
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class CFileCacheStats;
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class CBlobCacheStats;
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//
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// Globals
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//
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extern DWORD TsCreateFileShareMode;
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extern DWORD TsValidCreateFileOptions;
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extern DWORD TsCreateFileFlags;
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extern CFileHashTable * g_pFileInfoTable;
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extern CFileCacheStats * g_pFileCacheStats;
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extern CBlobCacheStats * g_pURICacheStats;
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extern CBlobCacheStats * g_pBlobCacheStats;
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extern CRITICAL_SECTION g_csUriInfo;
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//
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// ETag allocation related structures
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//
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// 3.0 seconds
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#define STRONG_ETAG_DELTA 30000000
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INT
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FormatETag(
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PCHAR pszBuffer,
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const FILETIME& rft,
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DWORD mdchange);
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#define FORMAT_ETAG(buffer, time, mdchange) \
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FormatETag(buffer, time, mdchange)
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//
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// This is the maximum number of UNC file handles to cache. The SMB
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// protocol limits the server to 2048 open files per client. Currently,
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// this count includes *all* UNC connections regardles of the remote
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// server
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//
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#define MAX_CACHED_UNC_HANDLES 1200
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extern DWORD cCachedUNCHandles;
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extern DWORD g_dwFileCacheByteThreshold;
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extern DWORDLONG g_dwMemCacheSize;
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extern BOOL g_bEnableSequentialRead;
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//
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// Disables Tsunami Caching
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//
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extern BOOL DisableTsunamiCaching;
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//
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// Disables SPUD
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//
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extern BOOL DisableSPUD;
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//
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// Allows us to mask the invalid flags
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//
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extern DWORD TsValidCreateFileOptions;
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//
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// flags for create file
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//
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extern BOOL TsNoDirOpenSupport;
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extern DWORD TsCreateFileFlags;
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extern DWORD TsCreateFileShareMode;
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//
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// function prototypes
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//
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BOOL
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Cache_Initialize(
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IN DWORD MaxOpenFile
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);
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BOOL
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MetaCache_Initialize(
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VOID
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);
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BOOL
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MetaCache_Terminate(
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VOID
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);
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//
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// This function converts a service ID into an index for statistics
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// gathering
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//
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inline
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DWORD
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MaskIndex( DWORD dwService )
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{
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if ( dwService > 0 && dwService <= LAST_PERF_CTR_SVC )
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return dwService - 1;
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else
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return CACHE_STATS_UNUSED_INDEX;
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}
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#define INC_COUNTER( dwServiceId, CounterName ) \
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IP_INCREMENT_COUNTER( Configuration.Stats[MaskIndex(dwServiceId)].CounterName )
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#define DEC_COUNTER( dwServiceId, CounterName ) \
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IP_DECREMENT_COUNTER( Configuration.Stats[MaskIndex(dwServiceId)].CounterName )
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#define SET_COUNTER( dwServiceId, CounterName, Val ) \
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IP_SET_COUNTER( Configuration.Stats[MaskIndex(dwServiceId)].CounterName, Val )
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//
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// Virtual roots related data and structures.
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//
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extern LIST_ENTRY GlobalVRootList;
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extern HANDLE g_hNewItem;
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extern HANDLE g_hQuit;
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typedef struct {
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DWORD Signature;
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BOOLEAN fUNC;
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DWORD dwServiceID;
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DWORD dwInstanceID;
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DWORD dwFileSystem;
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DWORD dwAccessMask;
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HANDLE hImpersonationToken;
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DWORD cchRootA;
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DWORD cchDirectoryA;
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CHAR pszRootA[ MAX_LENGTH_VIRTUAL_ROOT + 1 ];
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CHAR pszDirectoryA[ MAX_PATH + 1 ];
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CHAR pszAccountName[ UNLEN + 1 ];
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CVRootDirMonitorEntry * pDME;
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} VIRTUAL_ROOT_MAPPING, *PVIRTUAL_ROOT_MAPPING;
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#define VIRT_ROOT_SIGNATURE 0x544F4F52 // 'ROOT'
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//
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// Number of times to try and get dir change notification
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//
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#define MAX_NOTIFICATION_FAILURES 3
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#if ENABLE_DIR_MONITOR
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class CVRootDirMonitorEntry : public CDirMonitorEntry
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{
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private:
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DWORD m_cNotificationFailures;
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// BOOL IORelease(VOID);
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BOOL ActOnNotification(DWORD dwStatus, DWORD dwBytesWritten);
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void FileChanged(const char *pszFileName, BOOL bDoFlush);
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public:
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CVRootDirMonitorEntry();
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~CVRootDirMonitorEntry();
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// BOOL Release(VOID);
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BOOL Init();
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};
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#endif // ENABLE_DIR_MONITOR
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//
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// Directory Change Manager Functions
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//
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BOOL
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DcmInitialize(
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VOID
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);
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VOID
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DcmTerminate(
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VOID
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);
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BOOL
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DcmAddRoot(
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PVIRTUAL_ROOT_MAPPING pVrm
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);
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VOID
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DcmRemoveRoot(
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PVIRTUAL_ROOT_MAPPING pVrm
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);
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//
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// Directory Listing related objects and functions
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//
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# define MAX_DIR_ENTRIES_PER_BLOCK (25)
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typedef struct _TS_DIR_BUFFERS {
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LIST_ENTRY listEntry;
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int nEntries;
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WIN32_FIND_DATA rgFindData[MAX_DIR_ENTRIES_PER_BLOCK];
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} TS_DIR_BUFFERS, * PTS_DIR_BUFFERS;
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class TS_DIRECTORY_HEADER
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: public BLOB_HEADER
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{
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public:
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TS_DIRECTORY_HEADER( VOID)
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: m_hListingUser ( INVALID_HANDLE_VALUE),
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m_nEntries ( 0),
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m_ppFileInfo ( NULL)
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{ InitializeListHead( & m_listDirectoryBuffers); }
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~TS_DIRECTORY_HEADER( VOID) {}
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BOOL
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IsValid( VOID) const
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{ return ( TRUE); }
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int
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QueryNumEntries( VOID) const
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{ return ( m_nEntries); }
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HANDLE
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QueryListingUser( VOID) const
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{ return ( m_hListingUser); }
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const PWIN32_FIND_DATA *
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QueryArrayOfFileInfoPointers(VOID) const
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{ return ( m_ppFileInfo); }
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PLIST_ENTRY
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QueryDirBuffersListEntry( VOID)
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{ return ( & m_listDirectoryBuffers); }
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VOID
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ReInitialize( VOID)
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{
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//
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// this function provided to initialize, when we allocate using
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// malloc or GlobalAlloc()
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m_hListingUser = INVALID_HANDLE_VALUE;
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m_nEntries = 0;
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m_ppFileInfo = NULL;
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InitializeListHead( &m_listDirectoryBuffers);
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}
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VOID
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SetListingUser( IN HANDLE hListingUser)
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{ m_hListingUser = hListingUser; }
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VOID
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IncrementDirEntries( VOID)
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{ m_nEntries++; }
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VOID
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InsertBufferInTail( IN PLIST_ENTRY pEntry)
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{ InsertTailList( &m_listDirectoryBuffers, pEntry); }
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VOID
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CleanupThis( VOID);
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BOOL
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ReadWin32DirListing(IN LPCSTR pszDirectoryName,
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IN OUT DWORD * pcbMemUsed );
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BOOL
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BuildFileInfoPointers( IN OUT DWORD * pcbMemUsed );
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# if DBG
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VOID Print( VOID) const;
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#else
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VOID Print( VOID) const
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{ ; }
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# endif // DBG
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private:
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HANDLE m_hListingUser;
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int m_nEntries;
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// contains array of pointers indirected into buffers in m_listDirBuffers
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PWIN32_FIND_DATA * m_ppFileInfo;
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LIST_ENTRY m_listDirectoryBuffers; // ptr to DIR_BUFFERS
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}; // class TS_DIRECTORY_HEADER
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typedef TS_DIRECTORY_HEADER * PTS_DIRECTORY_HEADER;
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//
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// Virtual roots and directories always have their trailing slashes
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// stripped. This macro is used disambiguate the "/root1/" from "/root/"
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// case where "/root/" is an existing root (i.e., matching prefix).
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//
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extern BOOL
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IsCharTermA(
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IN LPCSTR lpszString,
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IN INT cch
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);
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#define IS_CHAR_TERM_A( psz, cch ) IsCharTermA(psz,cch)
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extern
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dllexp
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BOOL
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TsGetDirectoryListing(
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IN const TSVC_CACHE &TSvcCache,
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IN PCSTR pszDirectoryName,
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IN HANDLE ListingUser,
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OUT PTS_DIRECTORY_HEADER* ppDirectoryHeader
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);
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extern
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dllexp
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BOOL
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TsFreeDirectoryListing
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(
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IN const TSVC_CACHE & TSvcCache,
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IN OUT PTS_DIRECTORY_HEADER pTsDirectoryHeader
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);
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extern
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BOOL
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SortInPlaceFileInfoPointers(
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IN OUT PWIN32_FIND_DATA * prgFileInfo,
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IN int nFiles,
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IN PFN_CMP_WIN32_FIND_DATA pfnCompare
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);
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extern
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BOOL
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RegExpressionMatch( IN LPCSTR pszName, IN LPCSTR pszRegExp);
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#pragma hdrstop
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#endif // _TSUNAMIP_HXX_
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