code.delx.au - pulseaudio/blob - src/pulsecore/sioman.c

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of PulseAudio.
   5
   6   PulseAudio is free software; you can redistribute it and/or modify
   7   it under the terms of the GNU Lesser General Public License as published
   8   by the Free Software Foundation; either version 2 of the License,
   9   or (at your option) any later version.
  10
  11   PulseAudio is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with PulseAudio; if not, write to the Free Software
  18   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  19   USA.
  20 ***/
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <assert.h>
  27
  28 #include "sioman.h"
  29
  30 static int stdio_inuse = 0;
  31
  32 int pa_stdio_acquire(void) {
  33     if (stdio_inuse)
  34         return -1;
  35
  36     stdio_inuse = 1;
  37     return 0;
  38 }
  39
  40 void pa_stdio_release(void) {
  41     assert(stdio_inuse);
  42     stdio_inuse = 0;
  43 }