-/* $Id$ */
-
/***
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,
+ by the Free Software Foundation; either version 2.1 of the License,
or (at your option) any later version.
PulseAudio is distributed in the hope that it will be useful, but
#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));
}