code.delx.au - pulseaudio/blob - src/pulsecore/once.h

   1 #ifndef foopulseoncehfoo
   2 #define foopulseoncehfoo
   3
   4 /* $Id$ */
   5
   6 /***
   7   This file is part of PulseAudio.
   8
   9   PulseAudio is free software; you can redistribute it and/or modify
  10   it under the terms of the GNU Lesser General Public License as
  11   published by the Free Software Foundation; either version 2 of the
  12   License, or (at your option) any later version.
  13
  14   PulseAudio is distributed in the hope that it will be useful, but
  15   WITHOUT ANY WARRANTY; without even the implied warranty of
  16   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17   General Public License for more details.
  18
  19   You should have received a copy of the GNU Lesser General Public
  20   License along with PulseAudio; if not, write to the Free Software
  21   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  22   USA.
  23 ***/
  24
  25 #include <pulsecore/mutex.h>
  26
  27 typedef struct pa_once {
  28     unsigned int once_value;
  29     pa_mutex *mutex;
  30 } pa_once_t;
  31
  32 #define PA_ONCE_INIT { .once_value = 0, .mutex = NULL }
  33
  34 typedef void (*pa_once_func_t) (void);
  35
  36 void pa_once(pa_once_t *o, pa_once_func_t f);
  37
  38 #endif