139 lines
2.8 KiB
C
139 lines
2.8 KiB
C
/*++
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Copyright (c) 2000 Microsoft Corporation
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Module Name:
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obperf.c
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Abstract:
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This module contains ob support routines for performance hooks.
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Author:
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Stephen Hsiao (shsiao) 11-May-2000
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Revision History:
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--*/
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#include "obp.h"
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BOOLEAN
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ObPerfDumpHandleEntry (
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IN PHANDLE_TABLE_ENTRY ObjectTableEntry,
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IN HANDLE HandleId,
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IN PVOID EnumParameter
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);
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#ifdef ALLOC_PRAGMA
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#pragma alloc_text(PAGEWMI, ObPerfDumpHandleEntry)
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#pragma alloc_text(PAGEWMI, ObPerfHandleTableWalk)
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#endif
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BOOLEAN
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ObPerfDumpHandleEntry (
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IN PHANDLE_TABLE_ENTRY ObjectTableEntry,
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IN HANDLE HandleId,
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IN PVOID EnumParameter
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)
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/*++
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Routine Description:
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This routine checks a HandleTableEntry and see if it a file
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Arguments:
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ObjectTableEntry - Points to the handle table entry of interest.
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HandleId - Supplies the handle.
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EnumParameter - The HashTable to be used
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Return Value:
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FALSE, which tells ExEnumHandleTable to continue iterating through the
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handle table.
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--*/
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{
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extern POBJECT_TYPE ObpDirectoryObjectType;
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extern POBJECT_TYPE IoFileObjectType;
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POBJECT_HEADER ObjectHeader;
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PVOID Object;
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PPERFINFO_ENTRY_TABLE HashTable = EnumParameter;
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UNREFERENCED_PARAMETER (HandleId);
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ObjectHeader = (POBJECT_HEADER)(((ULONG_PTR)(ObjectTableEntry->Object)) & ~OBJ_HANDLE_ATTRIBUTES);
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Object = &ObjectHeader->Body;
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if (ObjectHeader->Type == IoFileObjectType) {
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//
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// File Object
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//
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PFILE_OBJECT FileObject = (PFILE_OBJECT) Object;
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PerfInfoAddToFileHash(HashTable, FileObject);
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#if 0
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} else if (ObjectHeader->Type == ObpDirectoryObjectType) {
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} else if (ObjectHeader->Type == MmSectionObjectType) {
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#endif
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}
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return FALSE;
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}
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VOID
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ObPerfHandleTableWalk (
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PEPROCESS Process,
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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 adds files in the handle table to the hash table.
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Arguments:
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Process - Process to walk through.
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If NULL, walk through the ObpKernelHandleTable;
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HashTable - HashTable in which to add the file
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Return Value:
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None.
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--*/
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{
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PHANDLE_TABLE ObjectTable;
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if (Process) {
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ObjectTable = ObReferenceProcessHandleTable (Process);
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if ( !ObjectTable ) {
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return ;
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}
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} else {
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//
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//
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//
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ObjectTable = ObpKernelHandleTable;
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}
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ExEnumHandleTable( ObjectTable,
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ObPerfDumpHandleEntry,
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(PVOID) HashTable,
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(PHANDLE)NULL );
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if (Process) {
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ObDereferenceProcessHandleTable( Process );
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}
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}
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