remap: Change remapping function argument type from void to int16_t / float as approp...

[pulseaudio] / src / pulsecore / semaphore-posix.c

diff --git a/src/pulsecore/semaphore-posix.c b/src/pulsecore/semaphore-posix.c
index 7c9f859d2477e3bc82f205fe1a1af622058930e9..2aa1bce906fe0634136b9fcc724dfc854e71ccc4 100644 (file)
--- a/src/pulsecore/semaphore-posix.c
+++ b/src/pulsecore/semaphore-posix.c
@@ -5,7 +5,7 @@
 
   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
@@ -65,3 +65,25 @@ void pa_semaphore_wait(pa_semaphore *s) {
 
     pa_assert(ret == 0);
 }
+
+pa_semaphore* pa_static_semaphore_get(pa_static_semaphore *s, unsigned value) {
+    pa_semaphore *m;
+
+    pa_assert(s);
+
+    /* First, check if already initialized and short cut */
+    if ((m = pa_atomic_ptr_load(&s->ptr)))
+        return m;
+
+    /* OK, not initialized, so let's allocate, and fill in */
+    m = pa_semaphore_new(value);
+    if ((pa_atomic_ptr_cmpxchg(&s->ptr, NULL, m)))
+        return m;
+
+    pa_semaphore_free(m);
+
+    /* Him, filling in failed, so someone else must have filled in
+     * already */
+    pa_assert_se(m = pa_atomic_ptr_load(&s->ptr));
+    return m;
+}