107 lines
2.6 KiB
C
107 lines
2.6 KiB
C
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Copyright (c) 1989 Microsoft Corporation
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Module Name:
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CcPerf.c
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Abstract:
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This module contains the perf trace routines in Cc Component
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Author:
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Stephen Hsiao (shsiao) 2-Feb-2001
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Revision History:
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--*/
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#include "cc.h"
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#ifdef ALLOC_PRAGMA
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#pragma alloc_text(PAGEWMI, CcPerfFileRunDown)
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#endif //ALLOC_PRAGMA
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VOID
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CcPerfFileRunDown(
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PPERFINFO_ENTRY_TABLE HashTable
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)
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/*++
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Routine Description:
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This routine walks the following lists:
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1. CcDirtySharedCacheMapList
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2. CcCleanSharedCacheMapList
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and returns a pointer to a pool allocation
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containing the referenced file object pointers.
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Arguments:
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None.
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Return Value:
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Returns a pointer to a NULL terminated pool allocation
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containing the file object pointers from the two lists,
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NULL if the memory could not be allocated.
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It is also the responsibility of the caller to dereference each
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file object in the list and then free the returned pool.
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Environment:
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PASSIVE_LEVEL, arbitrary thread context.
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--*/
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{
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KIRQL OldIrql;
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PSHARED_CACHE_MAP SharedCacheMap;
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ASSERT (KeGetCurrentIrql () == PASSIVE_LEVEL);
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CcAcquireMasterLock( &OldIrql );
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//
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// Walk through CcDirtySharedCacheMapList
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//
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SharedCacheMap = CONTAINING_RECORD( CcDirtySharedCacheMapList.SharedCacheMapLinks.Flink,
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SHARED_CACHE_MAP,
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SharedCacheMapLinks );
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while (&SharedCacheMap->SharedCacheMapLinks != &CcDirtySharedCacheMapList.SharedCacheMapLinks) {
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//
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// Skip over cursors
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//
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if (!FlagOn(SharedCacheMap->Flags, IS_CURSOR)) {
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PerfInfoAddToFileHash(HashTable, SharedCacheMap->FileObject);
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}
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SharedCacheMap = CONTAINING_RECORD( SharedCacheMap->SharedCacheMapLinks.Flink,
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SHARED_CACHE_MAP,
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SharedCacheMapLinks );
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}
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//
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// CcCleanSharedCacheMapList
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//
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SharedCacheMap = CONTAINING_RECORD( CcCleanSharedCacheMapList.Flink,
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SHARED_CACHE_MAP,
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SharedCacheMapLinks );
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while (&SharedCacheMap->SharedCacheMapLinks != &CcCleanSharedCacheMapList) {
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PerfInfoAddToFileHash(HashTable, SharedCacheMap->FileObject);
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SharedCacheMap = CONTAINING_RECORD( SharedCacheMap->SharedCacheMapLinks.Flink,
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SHARED_CACHE_MAP,
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SharedCacheMapLinks );
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}
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CcReleaseMasterLock( OldIrql );
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return;
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}
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