diff options
Diffstat (limited to 'src/pulsecore/sioman.c')
| -rw-r--r-- | src/pulsecore/sioman.c | 26 |
1 files changed, 11 insertions, 15 deletions
diff --git a/src/pulsecore/sioman.c b/src/pulsecore/sioman.c index d84010ee..7e5b186c 100644 --- a/src/pulsecore/sioman.c +++ b/src/pulsecore/sioman.c @@ -1,18 +1,18 @@ -/* $Id$ */ - /*** This file is part of PulseAudio. - + + Copyright 2004-2006 Lennart Poettering + PulseAudio is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. - + PulseAudio is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. - + You should have received a copy of the GNU Lesser General Public License along with PulseAudio; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 @@ -23,21 +23,17 @@ #include <config.h> #endif -#include <assert.h> +#include <pulsecore/macro.h> +#include <pulsecore/atomic.h> #include "sioman.h" -static int stdio_inuse = 0; +static pa_atomic_t stdio_inuse = PA_ATOMIC_INIT(0); int pa_stdio_acquire(void) { - if (stdio_inuse) - return -1; - - stdio_inuse = 1; - return 0; + return pa_atomic_cmpxchg(&stdio_inuse, 0, 1) ? 0 : -1; } void pa_stdio_release(void) { - assert(stdio_inuse); - stdio_inuse = 0; -} + pa_assert_se(pa_atomic_cmpxchg(&stdio_inuse, 1, 0)); +} |