234     memory_header *new, *cur = heap.first_free;  in buffer_alloc_calloc()  local
324     new = (memory_header *) p;  in buffer_alloc_calloc()
326     new->size = cur->size - len - sizeof(memory_header);  in buffer_alloc_calloc()
327     new->alloc = 0;  in buffer_alloc_calloc()
328     new->prev = cur;  in buffer_alloc_calloc()
329     new->next = cur->next;  in buffer_alloc_calloc()
331     new->trace = NULL;  in buffer_alloc_calloc()
332     new->trace_count = 0;  in buffer_alloc_calloc()
334     new->magic1 = MAGIC1;  in buffer_alloc_calloc()
335     new->magic2 = MAGIC2;  in buffer_alloc_calloc()
337     if( new->next != NULL )  in buffer_alloc_calloc()
338         new->next->prev = new;  in buffer_alloc_calloc()
342     new->prev_free = cur->prev_free;  in buffer_alloc_calloc()
343     new->next_free = cur->next_free;  in buffer_alloc_calloc()
344     if( new->prev_free != NULL )  in buffer_alloc_calloc()
345         new->prev_free->next_free = new;  in buffer_alloc_calloc()
347         heap.first_free = new;  in buffer_alloc_calloc()
349     if( new->next_free != NULL )  in buffer_alloc_calloc()
350         new->next_free->prev_free = new;  in buffer_alloc_calloc()
354     cur->next = new;  in buffer_alloc_calloc()