code.delx.au - pulseaudio/blob - src/mainloop-api.c

   1 #include <assert.h>
   2 #include <stdlib.h>
   3 #include "mainloop-api.h"
   4
   5 struct once_info {
   6     void (*callback)(void *userdata);
   7     void *userdata;
   8 };
   9
  10 static void once_callback(struct pa_mainloop_api *api, void *id, void *userdata) {
  11     struct once_info *i = userdata;
  12     assert(api && i && i->callback);
  13     i->callback(i->userdata);
  14     assert(api->cancel_fixed);
  15     api->cancel_fixed(api, id);
  16     free(i);
  17 }
  18
  19 void pa_mainloop_api_once(struct pa_mainloop_api* api, void (*callback)(void *userdata), void *userdata) {
  20     struct once_info *i;
  21     void *id;
  22     assert(api && callback);
  23
  24     i = malloc(sizeof(struct once_info));
  25     assert(i);
  26     i->callback = callback;
  27     i->userdata = userdata;
  28
  29     assert(api->source_fixed);
  30     id = api->source_fixed(api, once_callback, i);
  31     assert(id);
  32
  33     /* Note: if the mainloop is destroyed before once_callback() was called, some memory is leaked. */
  34 }
  35