C++ UtLocalCalloc函数代码示例

void
PrSetLineNumber (
    UINT32                  OriginalLineNumber,
    UINT32                  PreprocessorLineNumber)
{
    UINT32                  Entry;
    PR_LINE_MAPPING         *Block;
    UINT32                  Index;
    UINT32                  i;


    Entry = PreprocessorLineNumber / PR_LINES_PER_BLOCK;
    Index = PreprocessorLineNumber % PR_LINES_PER_BLOCK;
    Block = Gbl_MapBlockHead;

    for (i = 0; i < Entry; i++)
    {
        /* Allocate new mapping blocks as necessary */

        if (!Block->Next)
        {
            Block->Next = UtLocalCalloc (sizeof (PR_LINE_MAPPING));
            Block->Next->Map = UtLocalCalloc (PR_LINES_PER_BLOCK * sizeof (UINT32));
        }

        Block = Block->Next;
    }

    Block->Map[Index] = OriginalLineNumber;
}

char *
UtStringCacheCalloc (
    UINT32                  Length)
{
    char                    *Buffer;
    ASL_CACHE_INFO          *Cache;
    UINT32                  CacheSize = ASL_STRING_CACHE_SIZE;


    if (Length > CacheSize)
    {
        CacheSize = Length;

        if (Gbl_StringCacheList)
        {
            Cache = UtLocalCalloc (sizeof (Cache->Next) + CacheSize);

            /* Link new cache buffer just following head of list */

            Cache->Next = Gbl_StringCacheList->Next;
            Gbl_StringCacheList->Next = Cache;

            /* Leave cache management pointers alone as they pertain to head */

            Gbl_StringCount++;
            Gbl_StringSize += Length;

            return (Cache->Buffer);
        }
    }

    if ((Gbl_StringCacheNext + Length) >= Gbl_StringCacheLast)
    {
        /* Allocate a new buffer */

        Cache = UtLocalCalloc (sizeof (Cache->Next) + CacheSize);

        /* Link new cache buffer to head of list */

        Cache->Next = Gbl_StringCacheList;
        Gbl_StringCacheList = Cache;

        /* Setup cache management pointers */

        Gbl_StringCacheNext = Cache->Buffer;
        Gbl_StringCacheLast = Gbl_StringCacheNext + CacheSize;
    }

    Gbl_StringCount++;
    Gbl_StringSize += Length;

    Buffer = Gbl_StringCacheNext;
    Gbl_StringCacheNext += Length;
    return (Buffer);
}

void
DtWriteTableToListing (
    void)
{
    UINT8                   *Buffer;


    if (!Gbl_ListingFlag)
    {
        return;
    }

    /* Read the entire table from the output file */

    Buffer = UtLocalCalloc (Gbl_TableLength);
    FlSeekFile (ASL_FILE_AML_OUTPUT, 0);
    FlReadFile (ASL_FILE_AML_OUTPUT, Buffer, Gbl_TableLength);

    /* Dump the raw table data */

    AcpiOsRedirectOutput (Gbl_Files[ASL_FILE_LISTING_OUTPUT].Handle);

    AcpiOsPrintf ("\n%s: Length %d (0x%X)\n\n",
        ACPI_RAW_TABLE_DATA_HEADER, Gbl_TableLength, Gbl_TableLength);
    AcpiUtDumpBuffer2 (Buffer, Gbl_TableLength, DB_BYTE_DISPLAY);

    AcpiOsRedirectOutput (stdout);
}

DT_FIELD *
UtFieldCacheCalloc (
    void)
{
    ASL_CACHE_INFO          *Cache;


    if (Gbl_FieldCacheNext >= Gbl_FieldCacheLast)
    {
        /* Allocate a new buffer */

        Cache = UtLocalCalloc (sizeof (Cache->Next) +
            (sizeof (DT_FIELD) * ASL_FIELD_CACHE_SIZE));

        /* Link new cache buffer to head of list */

        Cache->Next = Gbl_FieldCacheList;
        Gbl_FieldCacheList = Cache;

        /* Setup cache management pointers */

        Gbl_FieldCacheNext = ACPI_CAST_PTR (DT_FIELD, Cache->Buffer);
        Gbl_FieldCacheLast = Gbl_FieldCacheNext + ASL_FIELD_CACHE_SIZE;
    }

    Gbl_FieldCount++;
    return (Gbl_FieldCacheNext++);
}

static ACPI_PARSE_OBJECT *
TrGetNextNode (
    void)
{
    ASL_CACHE_INFO          *Cache;


    if (Gbl_ParseOpCacheNext >= Gbl_ParseOpCacheLast)
    {
        /* Allocate a new buffer */

        Cache = UtLocalCalloc (sizeof (Cache->Next) +
            (sizeof (ACPI_PARSE_OBJECT) * ASL_PARSEOP_CACHE_SIZE));

        /* Link new cache buffer to head of list */

        Cache->Next = Gbl_ParseOpCacheList;
        Gbl_ParseOpCacheList = Cache;

        /* Setup cache management pointers */

        Gbl_ParseOpCacheNext = ACPI_CAST_PTR (ACPI_PARSE_OBJECT, Cache->Buffer);
        Gbl_ParseOpCacheLast = Gbl_ParseOpCacheNext + ASL_PARSEOP_CACHE_SIZE;
    }

    Gbl_ParseOpCount++;
    return (Gbl_ParseOpCacheNext++);
}

void
PrPushInputFileStack (
    FILE                    *InputFile,
    char                    *Filename)
{
    PR_FILE_NODE            *Fnode;


    /* Save the current state in an Fnode */

    Fnode = UtLocalCalloc (sizeof (PR_FILE_NODE));

    Fnode->File = Gbl_Files[ASL_FILE_INPUT].Handle;
    Fnode->Next = Gbl_InputFileList;
    Fnode->Filename = Gbl_Files[ASL_FILE_INPUT].Filename;
    Fnode->CurrentLineNumber = Gbl_CurrentLineNumber;

    /* Push it on the stack */

    Gbl_InputFileList = Fnode;

    DbgPrint (ASL_PARSE_OUTPUT, PR_PREFIX_ID
        "Push InputFile Stack, returning %p\n\n",
        Gbl_CurrentLineNumber, InputFile);

    /* Reset the global line count and filename */

    Gbl_Files[ASL_FILE_INPUT].Filename = Filename;
    Gbl_Files[ASL_FILE_INPUT].Handle = InputFile;
    Gbl_CurrentLineNumber = 1;
}

ACPI_STATUS
DtCompileFacs (
    DT_FIELD                **PFieldList)
{
    DT_SUBTABLE             *Subtable;
    UINT8                   *ReservedBuffer;
    ACPI_STATUS             Status;
    UINT32                  ReservedSize;


    Status = DtCompileTable (PFieldList, AcpiDmTableInfoFacs,
        &Gbl_RootTable, TRUE);
    if (ACPI_FAILURE (Status))
    {
        return (Status);
    }

    /* Large FACS reserved area at the end of the table */

    ReservedSize = (UINT32) sizeof (((ACPI_TABLE_FACS *) NULL)->Reserved1);
    ReservedBuffer = UtLocalCalloc (ReservedSize);

    DtCreateSubtable (ReservedBuffer, ReservedSize, &Subtable);

    ACPI_FREE (ReservedBuffer);
    DtInsertSubtable (Gbl_RootTable, Subtable);
    return (AE_OK);
}

ASL_RESOURCE_NODE *
RsAllocateResourceNode (
    UINT32                  Size)
{
    ASL_RESOURCE_NODE       *Rnode;


    /* Allocate the node */

    Rnode = UtLocalCalloc (sizeof (ASL_RESOURCE_NODE));

    /* Allocate the resource descriptor itself */

    Rnode->Buffer = UtLocalCalloc (Size);
    Rnode->BufferLength = Size;
    return (Rnode);
}

void
DtCreateSubtable (
    UINT8                   *Buffer,
    UINT32                  Length,
    DT_SUBTABLE             **RetSubtable)
{
    DT_SUBTABLE             *Subtable;


    Subtable = UtLocalCalloc (sizeof (DT_SUBTABLE));

    /* Create a new buffer for the subtable data */

    Subtable->Buffer = UtLocalCalloc (Length);
    ACPI_MEMCPY (Subtable->Buffer, Buffer, Length);

    Subtable->Length = Length;
    Subtable->TotalLength = Length;

    *RetSubtable = Subtable;
}

static char *
DtNormalizeBuffer (
    char                    *Buffer,
    UINT32                  *Count)
{
    char                    *NewBuffer;
    char                    *TmpBuffer;
    UINT32                  BufferCount = 0;
    BOOLEAN                 Separator = TRUE;
    char                    c;


    NewBuffer = UtLocalCalloc (ACPI_STRLEN (Buffer) + 1);
    TmpBuffer = NewBuffer;

    while ((c = *Buffer++))
    {
        switch (c)
        {
        /* Valid separators */

        case '[':
        case ']':
        case ' ':
        case ',':

            Separator = TRUE;
            break;

        default:

            if (Separator)
            {
                /* Insert blank as the standard separator */

                if (NewBuffer[0])
                {
                    *TmpBuffer++ = ' ';
                    BufferCount++;
                }

                Separator = FALSE;
            }

            *TmpBuffer++ = c;
            break;
        }
    }

    *Count = BufferCount + 1;
    return (NewBuffer);
}

static ACPI_PARSE_OBJECT *
TrGetNextNode (
    void)
{

    if (Gbl_NodeCacheNext >= Gbl_NodeCacheLast)
    {
        Gbl_NodeCacheNext = UtLocalCalloc (sizeof (ACPI_PARSE_OBJECT) *
                                ASL_NODE_CACHE_SIZE);
        Gbl_NodeCacheLast = Gbl_NodeCacheNext + ASL_NODE_CACHE_SIZE;
    }

    return (Gbl_NodeCacheNext++);
}

ACPI_STATUS
DtCompileSlit (
    void                    **List)
{
    ACPI_STATUS             Status;
    DT_SUBTABLE             *Subtable;
    DT_SUBTABLE             *ParentTable;
    DT_FIELD                **PFieldList = (DT_FIELD **) List;
    DT_FIELD                *FieldList;
    UINT32                  Localities;
    UINT8                   *LocalityBuffer;
    UINT32                  RemainingData;


    Status = DtCompileTable (PFieldList, AcpiDmTableInfoSlit,
                &Subtable, TRUE);
    if (ACPI_FAILURE (Status))
    {
        return (Status);
    }

    ParentTable = DtPeekSubtable ();
    DtInsertSubtable (ParentTable, Subtable);

    Localities = *ACPI_CAST_PTR (UINT32, Subtable->Buffer);
    LocalityBuffer = UtLocalCalloc (Localities);

    FieldList = *PFieldList;
    while (FieldList)
    {
        /* Handle multiple-line buffer */

        RemainingData = Localities;
        while (RemainingData && FieldList)
        {
            RemainingData = DtCompileBuffer (
                LocalityBuffer + (Localities - RemainingData),
                FieldList->Value, FieldList, RemainingData);
            FieldList = FieldList->Next;
        }

        DtCreateSubtable (LocalityBuffer, Localities, &Subtable);
        DtInsertSubtable (ParentTable, Subtable);
    }

    ACPI_FREE (LocalityBuffer);
    return (AE_OK);
}

char *
UtGetStringBuffer (
    UINT32                  Length)
{
    char                    *Buffer;


    if ((Gbl_StringCacheNext + Length) >= Gbl_StringCacheLast)
    {
        Gbl_StringCacheNext = UtLocalCalloc (ASL_STRING_CACHE_SIZE + Length);
        Gbl_StringCacheLast = Gbl_StringCacheNext + ASL_STRING_CACHE_SIZE +
                                Length;
    }

    Buffer = Gbl_StringCacheNext;
    Gbl_StringCacheNext += Length;

    return (Buffer);
}

ACPI_STATUS
DtCompileSlit (
    void                    **List)
{
    ACPI_STATUS             Status;
    DT_SUBTABLE             *Subtable;
    DT_SUBTABLE             *ParentTable;
    DT_FIELD                **PFieldList = (DT_FIELD **) List;
    DT_FIELD                *FieldList;
    UINT32                  Localities;
    UINT8                   *LocalityBuffer;


    Status = DtCompileTable (PFieldList, AcpiDmTableInfoSlit,
                &Subtable, TRUE);
    if (ACPI_FAILURE (Status))
    {
        return (Status);
    }

    ParentTable = DtPeekSubtable ();
    DtInsertSubtable (ParentTable, Subtable);

    Localities = *ACPI_CAST_PTR (UINT32, Subtable->Buffer);
    LocalityBuffer = UtLocalCalloc (Localities);

    /* Compile each locality buffer */

    FieldList = *PFieldList;
    while (FieldList)
    {
        DtCompileBuffer (LocalityBuffer,
            FieldList->Value, FieldList, Localities);

        DtCreateSubtable (LocalityBuffer, Localities, &Subtable);
        DtInsertSubtable (ParentTable, Subtable);
        FieldList = FieldList->Next;
    }

    ACPI_FREE (LocalityBuffer);
    return (AE_OK);
}

void
PrPushInputFileStack (
    FILE                    *InputFile,
    char                    *Filename)
{
    PR_FILE_NODE            *Fnode;


    Gbl_HasIncludeFiles = TRUE;

    /* Save the current state in an Fnode */

    Fnode = UtLocalCalloc (sizeof (PR_FILE_NODE));

    Fnode->File = Gbl_Files[ASL_FILE_INPUT].Handle;
    Fnode->Next = Gbl_InputFileList;
    Fnode->Filename = Gbl_Files[ASL_FILE_INPUT].Filename;
    Fnode->CurrentLineNumber = Gbl_CurrentLineNumber;

    /* Push it on the stack */

    Gbl_InputFileList = Fnode;

    DbgPrint (ASL_PARSE_OUTPUT, PR_PREFIX_ID
        "Push InputFile Stack: handle %p\n\n",
        Gbl_CurrentLineNumber, InputFile);

    /* Reset the global line count and filename */

    Gbl_Files[ASL_FILE_INPUT].Filename =
        UtStringCacheCalloc (strlen (Filename) + 1);
    strcpy (Gbl_Files[ASL_FILE_INPUT].Filename, Filename);

    Gbl_Files[ASL_FILE_INPUT].Handle = InputFile;
    Gbl_CurrentLineNumber = 1;

    /* Emit a new #line directive for the include file */

    Gbl_CurrentLineNumber = 1;
    FlPrintFile (ASL_FILE_PREPROCESSOR, "#line %u \"%s\"\n", 1, Filename);
}