void mark(int *p) {
int size;
int *ptr;
int i = 0;
//go for it
ptr = isPtr(p);
if (ptr != NULL && blockAllocated(ptr)){
if (!blockMarked(ptr)){
markBlock(ptr);
}
size = length(ptr)/4;
while (++i < size){
mark(ptr+i);
}
}
}
/* deleteFID()
*
* Remove an FID from the directory
* If fileLinkCount now zero, deallocate FileEntry and any data extents
*/
int
deleteFID(Directory * dir, struct fileIdentDesc * fid)
{
int rv;
struct fileEntry *fe;
rv = CMND_OK;
// if( fid->icb.extLocation.partitionReferenceNum != pd->partitionNumber )
// return NOT_IN_RW_PARTITION;
fe = readTaggedBlock(fid->icb.extLocation.logicalBlockNum, fid->icb.extLocation.partitionReferenceNum);
/* check permission */
freeBlock(fid->icb.extLocation.logicalBlockNum, fid->icb.extLocation.partitionReferenceNum);
if( fe->fileLinkCount > 1 ) {
fe->fileLinkCount--;
setChecksum(fe);
if( medium == CDRW )
dirtyBlock(fid->icb.extLocation.logicalBlockNum, fid->icb.extLocation.partitionReferenceNum);
else
vat[fid->icb.extLocation.logicalBlockNum] = writeCDR(fe);
} else {
if( medium == CDR ) {
if( fe->icbTag.fileType == ICBTAG_FILE_TYPE_DIRECTORY )
dir->fe.fileLinkCount--;
vat[fid->icb.extLocation.logicalBlockNum] = 0xFFFFFFFF;
} else {
if( fe->icbTag.fileType == ICBTAG_FILE_TYPE_DIRECTORY ) {
dir->fe.fileLinkCount--;
((struct logicalVolIntegrityDescImpUse*)
(lvid->impUse + 2 * sizeof(uint32_t) * lvid->numOfPartitions))->numDirs--;
} else {
((struct logicalVolIntegrityDescImpUse*)
(lvid->impUse + 2 * sizeof(uint32_t) * lvid->numOfPartitions))->numFiles--;
}
/* free file data */
switch( fe->icbTag.flags & ICBTAG_FLAG_AD_MASK ) {
case ICBTAG_FLAG_AD_IN_ICB:
break;
case ICBTAG_FLAG_AD_SHORT:
freeShortExtents((short_ad*)(fe->allocDescs + fe->lengthExtendedAttr));
break;
case ICBTAG_FLAG_AD_LONG:
freeLongExtents((long_ad*)(fe->allocDescs + fe->lengthExtendedAttr));
break;
default:
printf("UDF does not use Extended Alloc Descs\n");
rv = CMND_FAILED;
}
/* free the File Entry itself */
markBlock(FREE, fid->icb.extLocation.logicalBlockNum);
}
}
removeFID(dir, fid);
dir->dirDirty = 1;
return rv;
}
