Lines Matching defs:unused_block
79 static struct stack_block *unused_block; /* largest unused block is kept here */
217 unused_block, replace it */
225 if (unused_block == NULL || block->size > unused_block->size) {
226 free(unused_block);
227 unused_block = block;
408 /* current block is full, see if we can use the unused_block */
409 if (unused_block != NULL && unused_block->size >= alloc_size) {
410 block = unused_block;
411 unused_block = NULL;
629 free(unused_block);
632 unused_block = NULL;