static void
AcpiUtUpdateRefCount (
ACPI_OPERAND_OBJECT *Object,
UINT32 Action)
{
UINT16 OriginalCount;
UINT16 NewCount = 0;
ACPI_CPU_FLAGS LockFlags;
ACPI_FUNCTION_NAME (UtUpdateRefCount);
if (!Object)
{
return;
}
/*
* Always get the reference count lock. Note: Interpreter and/or
* Namespace is not always locked when this function is called.
*/
LockFlags = AcpiOsAcquireLock (AcpiGbl_ReferenceCountLock);
OriginalCount = Object->Common.ReferenceCount;
/* Perform the reference count action (increment, decrement) */
switch (Action)
{
case REF_INCREMENT:
NewCount = OriginalCount + 1;
Object->Common.ReferenceCount = NewCount;
AcpiOsReleaseLock (AcpiGbl_ReferenceCountLock, LockFlags);
/* The current reference count should never be zero here */
if (!OriginalCount)
{
ACPI_WARNING ((AE_INFO,
"Obj %p, Reference Count was zero before increment\n",
Object));
}
ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS,
"Obj %p Type %.2X Refs %.2X [Incremented]\n",
Object, Object->Common.Type, NewCount));
break;
case REF_DECREMENT:
/* The current reference count must be non-zero */
if (OriginalCount)
{
NewCount = OriginalCount - 1;
Object->Common.ReferenceCount = NewCount;
}
AcpiOsReleaseLock (AcpiGbl_ReferenceCountLock, LockFlags);
if (!OriginalCount)
{
ACPI_WARNING ((AE_INFO,
"Obj %p, Reference Count is already zero, cannot decrement\n",
Object));
}
ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS,
"Obj %p Type %.2X Refs %.2X [Decremented]\n",
Object, Object->Common.Type, NewCount));
/* Actually delete the object on a reference count of zero */
if (NewCount == 0)
{
AcpiUtDeleteInternalObj (Object);
}
break;
default:
AcpiOsReleaseLock (AcpiGbl_ReferenceCountLock, LockFlags);
ACPI_ERROR ((AE_INFO, "Unknown Reference Count action (0x%X)",
Action));
return;
}
/*
* Sanity check the reference count, for debug purposes only.
* (A deleted object will have a huge reference count)
*/
if (NewCount > ACPI_MAX_REFERENCE_COUNT)
{
ACPI_WARNING ((AE_INFO,
"Large Reference Count (0x%X) in object %p, Type=0x%.2X",
NewCount, Object, Object->Common.Type));
}
}
static void
AcpiUtUpdateRefCount (
ACPI_OPERAND_OBJECT *Object,
UINT32 Action)
{
UINT16 Count;
UINT16 NewCount;
ACPI_FUNCTION_NAME (UtUpdateRefCount);
if (!Object)
{
return;
}
Count = Object->Common.ReferenceCount;
NewCount = Count;
/*
* Perform the reference count action (increment, decrement, force delete)
*/
switch (Action)
{
case REF_INCREMENT:
NewCount++;
Object->Common.ReferenceCount = NewCount;
ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS,
"Obj %p Refs=%X, [Incremented]\n",
Object, NewCount));
break;
case REF_DECREMENT:
if (Count < 1)
{
ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS,
"Obj %p Refs=%X, can't decrement! (Set to 0)\n",
Object, NewCount));
NewCount = 0;
}
else
{
NewCount--;
ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS,
"Obj %p Refs=%X, [Decremented]\n",
Object, NewCount));
}
if (Object->Common.Type == ACPI_TYPE_METHOD)
{
ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS,
"Method Obj %p Refs=%X, [Decremented]\n", Object, NewCount));
}
Object->Common.ReferenceCount = NewCount;
if (NewCount == 0)
{
AcpiUtDeleteInternalObj (Object);
}
break;
case REF_FORCE_DELETE:
ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS,
"Obj %p Refs=%X, Force delete! (Set to 0)\n", Object, Count));
NewCount = 0;
Object->Common.ReferenceCount = NewCount;
AcpiUtDeleteInternalObj (Object);
break;
default:
ACPI_ERROR ((AE_INFO, "Unknown action (0x%X)", Action));
break;
}
/*
* Sanity check the reference count, for debug purposes only.
* (A deleted object will have a huge reference count)
*/
if (Count > ACPI_MAX_REFERENCE_COUNT)
{
ACPI_WARNING ((AE_INFO,
"Large Reference Count (0x%X) in object %p", Count, Object));
}
}
