/* Return all memory allocated to this ID */
/* NULL is returned on error */
unsigned int deiniz_borrow(id)
register MemBlock *id;
{
register MemBlock *nextone=id, /* Pointer to next block */
*thisone; /* Pointer to pres block */
while(thisone=nextone) { /* While blocks to return */
nextone=thisone->mb_next; /* Point to next block */
if(deallocate(thisone)==0) /* Return this one */
return(NULL);
}
return(id); /* Return non-zero */
}
/* --------------------------------------------------------- */
/* Return all memory but the first block */
/* NULL is returned on error */
unsigned int return_borrow(id)
register MemBlock *id;
{
register MemBlock *nextone, /* Pointer to next block */
*thisone; /* Pointer to pres block */
/* Return all but first */
if(nextone=id->mb_next) /* If anything to return */
while(thisone=nextone) { /* While blocks to return */
nextone=thisone->mb_next; /* Point to next block */
if(deallocate(thisone)==0) /* Return this one */
return(NULL);
}
/* Reset infomation in the first block */
id->mb_next=NULL; /* No next block */
id->mb_pres=id; /* This is the present one */
id->mb_offs=sizeof(MemBlock); /* Reset offset */
return(id); /* Return non-zero */
}