194 lines
3.5 KiB
C
194 lines
3.5 KiB
C
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/*++
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Copyright (c) 1999-2001 Microsoft Corporation
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Module Name:
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lock.c
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Abstract:
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Implements the !resource command.
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Author:
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Keith Moore (keithmo) 16-Jun-1999
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Environment:
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User Mode.
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Revision History:
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--*/
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#include "precomp.h"
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//
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// Private types.
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//
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typedef struct _LOCK_OPTIONS
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{
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BOOLEAN Verbose;
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} LOCK_OPTIONS, *PLOCK_OPTIONS;
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//
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// Private prototypes.
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//
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BOOLEAN
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DumpResourceCallback(
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IN PLIST_ENTRY pRemoteListEntry,
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IN PVOID pContext
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);
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//
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// Public functions.
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//
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DECLARE_API( resource )
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/*++
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Routine Description:
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Dumps all resources.
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Arguments:
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None.
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Return Value:
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None.
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--*/
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{
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ULONG_PTR address;
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ULONG result;
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LOCK_OPTIONS options;
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SNAPSHOT_EXTENSION_DATA();
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if (!IsThisACheckedBuild() || !DBG)
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{
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dprintf( "resource: command valid on checked builds only!\n" );
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return;
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}
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#if DBG
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//
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// Process the arguments.
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//
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options.Verbose = FALSE;
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if (_strnicmp( args, "-v", 2 ) == 0)
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{
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options.Verbose = TRUE;
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}
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//
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// Snag the list head address.
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//
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address = GetExpression( "&http!g_DbgGlobalResourceListHead" );
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if (address == 0)
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{
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dprintf( "resource: cannot find http!g_DbgGlobalResourceListHead\n" );
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return;
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}
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EnumLinkedList(
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(PLIST_ENTRY)address,
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&DumpResourceCallback,
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&options
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);
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#endif
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} // resource
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//
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// Private functions.
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//
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BOOLEAN
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DumpResourceCallback(
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IN PLIST_ENTRY pRemoteListEntry,
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IN PVOID pContext
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)
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{
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#if DBG
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PLOCK_OPTIONS pOptions;
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UL_ERESOURCE localResource;
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PUL_ERESOURCE pRemoteResource;
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ULONG result;
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BOOLEAN lockHeld;
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CHAR resourceState[MAX_RESOURCE_STATE_LENGTH];
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pOptions = (PLOCK_OPTIONS)pContext;
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pRemoteResource = CONTAINING_RECORD(
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pRemoteListEntry,
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UL_ERESOURCE,
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GlobalResourceListEntry
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);
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if (!ReadMemory(
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(ULONG_PTR)pRemoteResource,
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&localResource,
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sizeof(localResource),
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&result
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))
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{
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dprintf( "resource: cannot read UL_ERESOURCE @ %p\n", pRemoteResource );
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return FALSE;
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}
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lockHeld = localResource.Resource.ActiveCount != 0;
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if (pOptions->Verbose || lockHeld)
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{
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dprintf(
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"UL_ERESOURCE @ %p\n"
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" Resource @ %p (%s)\n"
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" GlobalResourceListEntry @ %p\n"
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" pExclusiveOwner = %p\n"
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" pPreviousOwner = %p\n"
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" ExclusiveCount = %lu\n"
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" SharedCount = %lu\n"
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" ReleaseCount = %lu\n"
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" ContentionCount = %lu\n"
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" ResourceName = %s\n"
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" OwnerTag = %08lx\n"
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"\n",
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pRemoteResource,
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REMOTE_OFFSET( pRemoteResource, UL_ERESOURCE, Resource ),
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BuildResourceState( &localResource, resourceState ),
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REMOTE_OFFSET( pRemoteResource, UL_ERESOURCE, GlobalResourceListEntry ),
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localResource.pExclusiveOwner,
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localResource.pPreviousOwner,
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localResource.ExclusiveCount,
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localResource.SharedCount,
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localResource.ReleaseCount,
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localResource.Resource.ContentionCount,
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localResource.ResourceName,
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localResource.OwnerTag
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);
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}
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#endif
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return TRUE;
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} // DumpResourceCallback
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