Intel Extensible Firmware Interface - Manual (Page 972)

Extensible Firmware Interface Specification
H-8 12/01/02 Version 1.10
Routine Description:
Allocate memory spaces for data structures used in compression process
Argements: (VOID)
Returns:
EFI_SUCCESS - Memory is allocated successfully
EFI_OUT_OF_RESOURCES - Allocation fails
--*/
{
UINT32 i;
mText = malloc (WNDSIZ * 2 + MAXMATCH);
for (i = 0; i < WNDSIZ * 2 + MAXMATCH; i ++) {
mText[i] = 0;
}
mLevel = malloc ((WNDSIZ + UINT8_MAX + 1) * sizeof(*mLevel));
mChildCount = malloc ((WNDSIZ + UINT8_MAX + 1) * sizeof(*mChildCount));
mPosition = malloc ((WNDSIZ + UINT8_MAX + 1) * sizeof(*mPosition));
mParent = malloc (WNDSIZ * 2 * sizeof(*mParent));
mPrev = malloc (WNDSIZ * 2 * sizeof(*mPrev));
mNext = malloc ((MAX_HASH_VAL + 1) * sizeof(*mNext));
mBufSiz = 16 * 1024U;
while ((mBuf = malloc(mBufSiz)) == NULL) {
mBufSiz = (mBufSiz / 10U) * 9U;
if (mBufSiz < 4 * 1024U) {
return EFI_OUT_OF_RESOURCES;
}
}
mBuf[0] = 0;
return EFI_SUCCESS;
}
VOID
FreeMemory ()
/*++
Routine Description:
Called when compression is completed to free memory previously allocated.
Arguments: (VOID)
Returns: (VOID)
--*/
{
if (mText) {
free (mText);
}
if (mLevel) {
free (mLevel);
}