39     memory_header   *prev_free;  member
82                     (size_t) hdr->prev_free, (size_t) hdr->next_free);  in debug_header()
143     if (hdr->prev_free != NULL && hdr->prev_free == hdr->next_free) {  in verify_header()
261         if (cur->prev_free != NULL) {  in buffer_alloc_calloc()
262             cur->prev_free->next_free = cur->next_free;  in buffer_alloc_calloc()
268             cur->next_free->prev_free = cur->prev_free;  in buffer_alloc_calloc()
271         cur->prev_free = NULL;  in buffer_alloc_calloc()
316     new->prev_free = cur->prev_free;  in buffer_alloc_calloc()
318     if (new->prev_free != NULL) {  in buffer_alloc_calloc()
319         new->prev_free->next_free = new;  in buffer_alloc_calloc()
325         new->next_free->prev_free = new;  in buffer_alloc_calloc()
331     cur->prev_free = NULL;  in buffer_alloc_calloc()
433         if (hdr->prev_free != NULL || hdr->next_free != NULL) {  in buffer_alloc_free()
434             if (hdr->prev_free != NULL) {  in buffer_alloc_free()
435                 hdr->prev_free->next_free = hdr->next_free;  in buffer_alloc_free()
441                 hdr->next_free->prev_free = hdr->prev_free;  in buffer_alloc_free()
445         hdr->prev_free = old->prev_free;  in buffer_alloc_free()
448         if (hdr->prev_free != NULL) {  in buffer_alloc_free()
449             hdr->prev_free->next_free = hdr;  in buffer_alloc_free()
455             hdr->next_free->prev_free = hdr;  in buffer_alloc_free()
471             heap.first_free->prev_free = hdr;  in buffer_alloc_free()