dmmlib/custom_free.c

#include "custom_free.h"
#include "other.h"
#include "posix_lock.h"

void custom_free(heap_t* heap, void *ptr) {
	size_t size;
	int fixed_list_id, i;
	MAPTABLE_NODE *current_maptable_node;
	leaHdr *test;
	

	size = getSize((char *) ptr);
	fixed_list_id = map_size_to_list(heap, size);
	
	posix_lock(heap);

	if(fixed_list_id != -1) {
		current_maptable_node = heap->maptable_head;		
		if(fixed_list_id == 0) {
			test = getHeader(ptr);
			test->next = current_maptable_node->fixed_list_head;
			//getHeader((char *) ptr)->next = current_maptable_node->fixed_list_head;
			current_maptable_node->fixed_list_head = ptr;
		} else {
			for(i = 1; i < fixed_list_id; i++) {
				current_maptable_node = current_maptable_node->next;
			}
			getHeader(ptr)->next = current_maptable_node->fixed_list_head;
			current_maptable_node->fixed_list_head = ptr;
		}
	} else { // put it in the free list
		getHeader(ptr)->next = heap->free_list_head;
		heap->free_list_head = getHeader(ptr);
	}

	markFree((char *) ptr);

	posix_unlock(heap);
}