tmus

TUI Music Player
git clone https://git.sinitax.com/sinitax/tmus
Log | Files | Refs | Submodules | LICENSE | sfeed.txt

ref.c (1279B)

      1#include "ref.h"
      2#include "list.h"
      3#include "util.h"
      4
      5#include <stdlib.h>
      6
      7struct ref *
      8ref_alloc(void *data)
      9{
     10	struct ref *ref;
     11
     12	ref = malloc(sizeof(struct ref));
     13	if (!ref) ERROR(SYSTEM, "malloc");
     14
     15	ref->link = LIST_LINK_INIT;
     16	ref->data = data;
     17
     18	return ref;
     19}
     20
     21void
     22ref_free(void *ref)
     23{
     24	free(ref);
     25}
     26
     27void
     28refs_free(struct list *list)
     29{
     30	list_free_items(list, ref_free, LIST_OFFSET(struct ref, link));
     31}
     32
     33int
     34refs_index(struct list *list, void *data)
     35{
     36	struct list_link *iter;
     37	struct ref *ref;
     38	int index;
     39
     40	index = 0;
     41	for (LIST_ITER(list, iter)) {
     42		ref = LIST_UPCAST(iter, struct ref, link);
     43		if (ref->data == data)
     44			return index;
     45		index++;
     46	}
     47
     48	return -1;
     49}
     50
     51struct list_link *
     52refs_find(struct list *list, void *data)
     53{
     54	struct list_link *iter;
     55	struct ref *ref;
     56
     57	for (LIST_ITER(list, iter)) {
     58		ref = LIST_UPCAST(iter, struct ref, link);
     59		if (ref->data == data)
     60			return iter;
     61	}
     62
     63	return NULL;
     64}
     65
     66int
     67refs_incl(struct list *list, void *data)
     68{
     69	struct list_link *ref;
     70
     71	ref = refs_find(list, data);
     72
     73	return ref != NULL;
     74}
     75
     76void
     77refs_rm(struct list *list, void *data)
     78{
     79	struct list_link *ref;
     80	struct ref *dataref;
     81
     82	ref = refs_find(list, data);
     83	if (!ref) return;
     84
     85	dataref = LIST_UPCAST(ref, struct ref, link);
     86	list_link_pop(ref);
     87	free(dataref);
     88}
     89