arena_list_t* anew_list(void *data)
{
/*if(arena == NULL){
// printf("should make new arena\n");
arena = create_arena(4096*10000);
}*/
arena_list_t* list;
//printf("should malloc arena\n");
//list = amalloc(arena,sizeof(arena_list_t));
if(free_head == NULL || empty(free_head)){
list = malloc(sizeof(arena_list_t));
}else{
list = free_head->succ;
take_out(list);
}
if (list == NULL) {
fprintf(stderr, "out of memory in %s\n", __func__);
exit(1);
}
list->succ = list->pred = list;
list->data = data;
return list;
}
void* take_out_first(list_t* list)
{
list_t* succ;
void* data;
if (list->succ->data == NULL)
return NULL;
data = list->succ->data;
succ = list->succ;
take_out(succ);
free(succ);
return data;
}
