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Major rewrite of EvaluateRelative. Return object deletion code

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added.


date	99.06.28.23.00.00;	author rmoore1;	state Exp;
This commit is contained in:
aystarik 2005-06-29 18:24:30 +00:00
parent 479a795d52
commit dde4479b35
1 changed files with 131 additions and 106 deletions
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237
source/components/namespace/nseval.c
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@ -113,16 +113,14 @@
*
* FUNCTION: NsEvaluateRelative
*
* PARAMETERS: ObjEntry - NTE of containing object
* PARAMETERS: RelObjEntry - NTE of the relative containing object
* *Pathname - Name of method to execute, If NULL, the
* handle is the object to execute
* *ReturnObject - Where to put method's return value (if
* any). If NULL, no value is returned.
* **Params - List of parameters to pass to
* method, terminated by NULL.
* Params itself may be NULL
* if no parameters are being
* passed.
* **Params - List of parameters to pass to the method,
* terminated by NULL. Params itself may be
* NULL if no parameters are being passed.
*
* RETURN: Status
*
@ -133,73 +131,72 @@
ACPI_STATUS
NsEvaluateRelative (
NAME_TABLE_ENTRY *ObjEntry,
NAME_TABLE_ENTRY *RelObjEntry,
char *Pathname,
ACPI_OBJECT *ReturnObject,
ACPI_OBJECT **Params)
{
char NameBuffer[PATHNAME_MAX];
ACPI_STATUS Status;
UINT32 MaxObjectPathLength = PATHNAME_MAX - 1;
NAME_TABLE_ENTRY *ObjEntry = NULL;
char *InternalPath = NULL;
FUNCTION_TRACE ("NsEvaluateRelative");
/*
* Must have a valid object NTE
* Must have a valid object NTE
*/
if (!ObjEntry)
if (!RelObjEntry)
{
FUNCTION_EXIT;
FUNCTION_STATUS_EXIT (AE_BAD_PARAMETER);
return AE_BAD_PARAMETER;
}
/*
* If the caller specified a method then it must be a path relative to
* the object indicated by the handle we need to reserve space in the
* buffer to append the CM name later
*/
if (Pathname)
{
/*
* We will append the method name to the device pathname
*/
MaxObjectPathLength -= (strlen (Pathname) + 1);
}
/*
* Get the device pathname
*/
Status = NsHandleToPathname (ObjEntry, MaxObjectPathLength, NameBuffer);
if (Status != AE_OK)
/* Build an internal name string for the method */
Status = NsInternalizeName (Pathname, &InternalPath);
if (ACPI_FAILURE (Status))
{
/*
* Failed the conversion
*/
FUNCTION_EXIT;
FUNCTION_STATUS_EXIT (Status);
return Status;
}
/*
* If the caller specified a method then it must be a path relative to
* the object indicated by the handle
*/
if (Pathname)
/* Lookup the name in the namespace */
Status = NsLookup (RelObjEntry->Scope, InternalPath, TYPE_Any, MODE_Exec,
NS_NO_UPSEARCH, &ObjEntry);
if (Status != AE_OK)
{
/*
* Append the method name to the device pathname
* (Path separator is a period)
*/
strcat (NameBuffer, ".");
strcat (NameBuffer, Pathname);
DEBUG_PRINT (ACPI_INFO, ("NsEvaluateRelative: Object at [%s] was not found, status=%.4X\n",
InternalPath, Status));
}
/*
* Execute the method
*/
Status = NsEvaluateByName (NameBuffer, ReturnObject, Params);
else
{
/*
* Now that we have a handle to the object, we can attempt
* to evaluate it.
*/
FUNCTION_EXIT;
DEBUG_PRINT (ACPI_INFO, ("NsEvaluateRelative: %s [%p] Value %p\n",
Pathname, ObjEntry, ObjEntry->Value));
Status = NsEvaluateByHandle (ObjEntry, ReturnObject, Params);
DEBUG_PRINT (ACPI_INFO, ("NsEvaluateRelative: *** Completed evaluation of object %s ***\n",
Pathname));
}
/* Cleanup */
OsdFree (InternalPath);
FUNCTION_STATUS_EXIT (Status);
return Status;
}
@ -211,12 +208,10 @@ NsEvaluateRelative (
* PARAMETERS: Pathname - Fully qualified pathname to the object
* *ReturnObject - Where to put method's return value (if
* any). If NULL, no value is returned.
* **Params - List of parameters to pass to
* method, terminated by NULL.
* Params itself may be NULL
* if no parameters are being
* passed.
*
* **Params - List of parameters to pass to the method,
* terminated by NULL. Params itself may be
* NULL if no parameters are being passed.
*
* RETURN: Status
*
* DESCRIPTION: Find and execute the requested method passing the given
@ -232,6 +227,7 @@ NsEvaluateByName (
{
ACPI_STATUS Status = AE_ERROR;
NAME_TABLE_ENTRY *ObjEntry = NULL;
char *InternalPath = NULL;
FUNCTION_TRACE ("NsEvaluateByName");
@ -241,36 +237,51 @@ NsEvaluateByName (
if (Pathname[0] != '\\' || Pathname[1] != '/')
{
Pathname = NsInternalizeName (Pathname);
Status = NsInternalizeName (Pathname, &InternalPath);
if (ACPI_FAILURE (Status))
{
FUNCTION_STATUS_EXIT (Status);
return Status;
}
}
/* Lookup the name in the namespace */
Status = NsEnter (Pathname, TYPE_Any, MODE_Exec, &ObjEntry);
Status = NsLookup (NULL, InternalPath, TYPE_Any, MODE_Exec,
NS_NO_UPSEARCH, &ObjEntry);
if (Status != AE_OK)
{
DEBUG_PRINT (ACPI_INFO, ("Method [%s] was not found, status=%.4X\n",
Pathname, Status));
return Status;
DEBUG_PRINT (ACPI_INFO, ("NsEvaluateByName: Object at [%s] was not found, status=%.4X\n",
InternalPath, Status));
}
else
{
/*
* Now that we have a handle to the object, we can attempt
* to evaluate it.
*/
DEBUG_PRINT (ACPI_INFO, ("NsEvaluateByName: %s [%p] Value %p\n",
Pathname, ObjEntry, ObjEntry->Value));
Status = NsEvaluateByHandle (ObjEntry, ReturnObject, Params);
DEBUG_PRINT (ACPI_INFO, ("NsEvaluateByName: *** Completed evaluation of object %s ***\n",
Pathname));
}
/*
* Now that we have a handle to the object, we can attempt
* to evaluate it.
*/
/* Cleanup */
DEBUG_PRINT (ACPI_INFO, ("[%s Method %p Value %p\n",
Pathname, ObjEntry, ObjEntry->Value));
if (InternalPath)
{
OsdFree (InternalPath);
}
Status = NsEvaluateByHandle (ObjEntry, ReturnObject, Params);
DEBUG_PRINT (ACPI_INFO, ("*** Completed execution of method %s ***\n",
Pathname));
FUNCTION_EXIT;
FUNCTION_STATUS_EXIT (Status);
return Status;
}
@ -282,11 +293,9 @@ NsEvaluateByName (
* PARAMETERS: ObjEntry - NTE of method to execute
* *ReturnObject - Where to put method's return value (if
* any). If NULL, no value is returned.
* **Params - List of parameters to pass to
* method, terminated by NULL.
* Params itself may be NULL
* if no parameters are being
* passed.
* **Params - List of parameters to pass to the method,
* terminated by NULL. Params itself may be
* NULL if no parameters are being passed.
*
* RETURN: Status
*
@ -315,14 +324,14 @@ NsEvaluateByHandle (
* not been defined and there is nothing to execute.
*/
DEBUG_PRINT (ACPI_ERROR, ("Name space not initialized ==> method not defined\n"));
FUNCTION_EXIT;
DEBUG_PRINT (ACPI_ERROR, ("NsEvaluateByHandle: Name space not initialized - method not defined\n"));
FUNCTION_STATUS_EXIT (AE_NO_NAMESPACE);
return AE_NO_NAMESPACE;
}
if (!ObjEntry)
{
FUNCTION_EXIT;
FUNCTION_STATUS_EXIT (AE_BAD_PARAMETER);
return AE_BAD_PARAMETER;
}
@ -369,28 +378,49 @@ NsEvaluateByHandle (
if (AE_RETURN_VALUE == Status)
{
BREAKPOINT3;
/*
* If the Method returned a value and the caller provided a place
* to store a returned value, Copy the returned value to the object
* descriptor provided by the caller.
*/
/*
* TBD: Translate to a different external object type here
*/
if (ReturnObject)
{
(*ReturnObject) = *((ACPI_OBJECT *) ObjStack[ObjStackTop]);
}
/*
* TBD: do we ever want to delete this???
* There are clearly cases that we don't and this will fault
* Now that the return value (object) has been copied, we must purge the stack
* of the return value by deleting the object and popping the stack!
*
* TBD: There a difference between what is returned by NsExecuteControlMethod and
* NsGetObjectValue - ObjStackTop is one vs. zero (respectively).
* What is the real reason for this??
*/
/* OsdFree (ObjStack[ObjStackTop]); */
LocalDeleteObject ((ACPI_OBJECT **) &ObjStack[ObjStackTop]);
if (ObjStackTop)
{
if (ObjStackTop > 1)
{
DEBUG_PRINT (ACPI_ERROR, ("NsEvaluateByHandle: Object stack not empty: %d\n",
ObjStackTop));
}
/* In all cases, clear the object stack! */
ObjStackTop = 0;
}
Status = AE_OK;
}
FUNCTION_EXIT;
FUNCTION_STATUS_EXIT (Status);
return Status;
}
@ -400,15 +430,13 @@ NsEvaluateByHandle (
* FUNCTION: NsExecuteControlMethod
*
* PARAMETERS: MethodEntry - The Nte of the object/method
* **Params - List of parameters to pass to
* method, terminated by NULL.
* Params itself may be NULL
* if no parameters are being
* passed.
* **Params - List of parameters to pass to the method,
* terminated by NULL. Params itself may be
* NULL if no parameters are being passed.
*
* RETURN: Status
*
* DESCRIPTION: execute the requested method passing the given parameters
* DESCRIPTION: Execute the requested method passing the given parameters
*
****************************************************************************/
@ -428,8 +456,8 @@ NsExecuteControlMethod (
if (!MethodEntry->Value)
{
DEBUG_PRINT (ACPI_ERROR, ("Method is undefined\n"));
FUNCTION_EXIT;
DEBUG_PRINT (ACPI_ERROR, ("Control method is undefined (nil value)\n"));
FUNCTION_STATUS_EXIT (AE_ERROR);
return AE_ERROR;
}
@ -472,25 +500,26 @@ NsExecuteControlMethod (
if (AmlPackageNested ())
{
/* Package stack not empty at method exit and should be */
/* Package stack not empty at method exit and should be */
REPORT_ERROR ("Package stack not empty at method exit");
}
if (AmlGetMethodDepth () > -1)
{
/* Method stack not empty at method exit and should be */
/* Method stack not empty at method exit and should be */
REPORT_ERROR ("Method stack not empty at method exit");
}
if (ObjStackTop)
if ((ObjStackTop) &&
(Status != AE_RETURN_VALUE))
{
/* Object stack is not empty at method exit and should be */
REPORT_ERROR ("Object stack not empty at method exit");
DEBUG_PRINT (ACPI_ERROR, ("%d Remaining: \n", ObjStackTop));
for (i = 0; i < (UINT32) ObjStackTop; i++)
{
DEBUG_PRINT (ACPI_ERROR, ("Object Stack [%d]: %p\n", i, ObjStack[ObjStackTop]));
@ -499,7 +528,7 @@ NsExecuteControlMethod (
AmlDumpStack (MODE_Exec, "Remaining Object Stack entries", -1, "");
}
FUNCTION_EXIT;
FUNCTION_STATUS_EXIT (Status);
return Status;
}
@ -509,15 +538,10 @@ NsExecuteControlMethod (
* FUNCTION: NsGetObjectValue
*
* PARAMETERS: ObjectEntry - The Nte of the object
* **Params - List of parameters to pass to
* method, terminated by NULL.
* Params itself may be NULL
* if no parameters are being
* passed.
*
* RETURN: Status
*
* DESCRIPTION: return the current value of the object
* DESCRIPTION: Return the current value of the object
*
****************************************************************************/
@ -537,7 +561,7 @@ NsGetObjectValue (
{
/* Descriptor allocation failure */
FUNCTION_EXIT;
FUNCTION_STATUS_EXIT (AE_NO_MEMORY);
return AE_NO_MEMORY;
}
@ -571,7 +595,8 @@ NsGetObjectValue (
Status = AE_RETURN_VALUE;
}
DEBUG_PRINT (ACPI_INFO, ("NsGetObjectValue: Returning object value (on obj stack)\n"));
FUNCTION_EXIT;
FUNCTION_STATUS_EXIT (Status);
return Status;
}