pswalk.c File Reference

#include "acpi.h"
#include "accommon.h"
#include "acparser.h"
#include "amlcode.h"

Include dependency graph for pswalk.c:

Go to the source code of this file.

Macros
#define	_COMPONENT   ACPI_PARSER

Functions
void	AcpiPsDeleteParseTree (ACPI_PARSE_OBJECT *SubtreeRoot)

Macro Definition Documentation

_COMPONENT

#define _COMPONENT   ACPI_PARSER

Definition at line 48 of file pswalk.c.

Function Documentation

AcpiPsDeleteParseTree()

void AcpiPsDeleteParseTree

(

ACPI_PARSE_OBJECT *

SubtreeRoot

)

Definition at line 67 of file pswalk.c.

{
    ACPI_PARSE_OBJECT       *Op = SubtreeRoot;
    ACPI_PARSE_OBJECT       *Next = NULL;
    ACPI_PARSE_OBJECT       *Parent = NULL;
    UINT32                  Level = 0;
 
 
    ACPI_FUNCTION_TRACE_PTR (PsDeleteParseTree, SubtreeRoot);
 
    ACPI_DEBUG_PRINT ((ACPI_DB_PARSE_TREES,
        " root %p\n", SubtreeRoot));
 
    /* Visit all nodes in the subtree */
 
    while (Op)
    {
        if (Op != Parent)
        {
            /* This is the descending case */
 
            if (ACPI_IS_DEBUG_ENABLED (ACPI_LV_PARSE_TREES, _COMPONENT))
            {
                /* This debug option will print the entire parse tree */
 
                AcpiOsPrintf ("        %*.s%s %p", (Level * 4), " ",
                    AcpiPsGetOpcodeName (Op->Common.AmlOpcode), Op);
 
                if (Op->Named.AmlOpcode == AML_INT_NAMEPATH_OP)
                {
                    AcpiOsPrintf ("    %4.4s", Op->Common.Value.String);
                }
                if (Op->Named.AmlOpcode == AML_STRING_OP)
                {
                    AcpiOsPrintf ("    %s", Op->Common.Value.String);
                }
                AcpiOsPrintf ("\n");
            }
 
            /* Look for an argument or child of the current op */
 
            Next = AcpiPsGetArg (Op, 0);
            if (Next)
            {
                /* Still going downward in tree (Op is not completed yet) */
 
                Op = Next;
                Level++;
                continue;
            }
        }
 
        /* No more children, this Op is complete. */
 
        Next = Op->Common.Next;
        Parent = Op->Common.Parent;
 
        AcpiPsFreeOp (Op);
 
        /* If we are back to the starting point, the walk is complete. */
 
        if (Op == SubtreeRoot)
        {
            return_VOID;
        }
 
        if (Next)
        {
            Op = Next;
        }
        else
        {
            Level--;
            Op = Parent;
        }
    }
 
    return_VOID;
}

Referenced by AcpiDsAutoSerializeMethod(), AcpiDsExecuteArguments(), AcpiNsOneCompleteParse(), AcpiPsCompleteOp(), AcpiPsCompleteThisOp(), AcpiPsExecuteMethod(), and AcpiPsExecuteTable().