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

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of PulseAudio.
   5
   6   Copyright 2004-2006 Lennart Poettering
   7
   8   PulseAudio is free software; you can redistribute it and/or modify
   9   it under the terms of the GNU Lesser General Public License as published
  10   by the Free Software Foundation; either version 2 of the License,
  11   or (at your option) any later version.
  12
  13   PulseAudio is distributed in the hope that it will be useful, but
  14   WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  16   General Public License for more details.
  17
  18   You should have received a copy of the GNU Lesser General Public License
  19   along with PulseAudio; if not, write to the Free Software
  20   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  21   USA.
  22 ***/
  23
  24 #ifdef HAVE_CONFIG_H
  25 #include <config.h>
  26 #endif
  27
  28 #include <assert.h>
  29
  30 #include "sioman.h"
  31
  32 static int stdio_inuse = 0;
  33
  34 int pa_stdio_acquire(void) {
  35     if (stdio_inuse)
  36         return -1;
  37
  38     stdio_inuse = 1;
  39     return 0;
  40 }
  41
  42 void pa_stdio_release(void) {
  43     assert(stdio_inuse);
  44     stdio_inuse = 0;
  45 }