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Added global lock routines

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Moved DeleteObject to the common directory


date	99.05.28.21.47.00;	author rmoore1;	state Exp;
This commit is contained in:
aystarik 2005-06-29 17:58:17 +00:00
parent d95e35a333
commit 1e77465132
1 changed files with 79 additions and 34 deletions
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113
source/components/executer/exutils.c
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@ -207,59 +207,104 @@ AmlBufSeq (void)
}
/*****************************************************************************
*
* FUNCTION: DeleteObject
*
* PARAMETERS: **ObjDesc - Descriptor to be deleted
* FUNCTION: AmlAcquireGlobalLock
*
* DESCRIPTION: If the passed descriptor pointer does not point into the
* AML block and is not an NsHandle, free the descriptor.
* PARAMETERS: Rule - Lock rule: AlwaysLock, NeverLock
*
* Note that the parameter is the address of the descriptor
* pointer, so that the descriptor pointer can be set to NULL
* after the descriptor is freed.
* RETURN: TRUE/FALSE indicating whether the lock was actually acquired
*
* DESCRIPTION: Obtain the global lock and keep track of this fact via two
* methods. A global variable keeps the state of the lock, and
* the state is returned to the caller.
*
****************************************************************************/
void
DeleteObject (OBJECT_DESCRIPTOR **ObjDesc)
BOOLEAN
AmlAcquireGlobalLock (UINT16 Rule)
{
FUNCTION_TRACE ("DeleteObject");
DEBUG_PRINT (ACPI_INFO, ("DeleteObject: %x\n", *ObjDesc));
BOOLEAN Locked = FALSE;
/*
* Be very careful about what we delete
*/
/*
* XXX: This is not the best solution!
* XXX: And may not work in all cases!!
*/
FUNCTION_TRACE ("AmlAcquireGlobalLock");
if ((OBJECT_DESCRIPTOR **) 0 != ObjDesc &&
(OBJECT_DESCRIPTOR *) 0 != *ObjDesc &&
!AmlIsInPCodeBlock ((UINT8 *) *ObjDesc) &&
!IS_NS_HANDLE (*ObjDesc) &&
!AmlIsMethodValue (*ObjDesc) &&
!IsNsValue (*ObjDesc))
{
DEBUG_PRINT (ACPI_INFO, ("DeleteObject: Actually deleting %x\n", *ObjDesc));
OsdFree (*ObjDesc);
DEBUG_PRINT (ACPI_INFO, ("DeleteObject: Successfully deleted %x\n", *ObjDesc));
/* Only attempt lock if the Rule says so */
if (Rule == (UINT16) GLOCK_AlwaysLock)
{
/* OK to get the lock */
if (OsGetGlobalLock () != AE_OK)
{
/*
* lock ownership failed
*/
DEBUG_PRINT (ACPI_ERROR, ("Get Global Lock Failed!!\n"));
}
else
{
GlobalLockSet = TRUE;
Locked = TRUE;
}
}
FUNCTION_EXIT;
return Locked;
}
/*****************************************************************************
*
* FUNCTION: AmlReleaseGlobalLock
*
* PARAMETERS: LockedByMe - Return value from corresponding call to
* AcquireGlobalLock.
*
* RETURN: Status
*
* DESCRIPTION: Release the global lock if it is locked.
*
****************************************************************************/
ACPI_STATUS
AmlReleaseGlobalLock (BOOLEAN LockedByMe)
{
FUNCTION_TRACE ("AmlReleaseGlobalLock");
/* Only attempt unlock if the caller locked it */
if (LockedByMe)
{
/* Double check against the global flag */
if (GlobalLockSet)
{
/* OK, now release the lock */
OsReleaseGlobalLock ();
GlobalLockSet = FALSE;
}
else
{
/* Sorry, the lock wasn't set, according to our records */
DEBUG_PRINT (ACPI_ERROR, ("Global lock was not set\n"));
}
}
FUNCTION_EXIT;
return AE_OK;
}
#ifdef PLUMBER
/****************************************************************************
*