-#ifndef foopulserefcntfoo
-#define foopulserefcntfoo
-
-/* $Id$ */
+#ifndef foopulserefcnthfoo
+#define foopulserefcnthfoo
/***
This file is part of PulseAudio.
-
+
+ Copyright 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
+ published 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
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
USA.
***/
-#define AO_REQUIRE_CAS
-#include <atomic_ops.h>
+#include <pulsecore/atomic.h>
+#include <pulsecore/macro.h>
+#include <pulsecore/log.h>
+
+/* #define DEBUG_REF */
+
+#define PA_REFCNT_DECLARE \
+ pa_atomic_t _ref
+
+#define PA_REFCNT_VALUE(p) \
+ pa_atomic_load(&(p)->_ref)
-#define PA_REFCNT_DECLARE volatile AO_t _ref
+#define PA_REFCNT_INIT_ZERO(p) \
+ pa_atomic_store(&(p)->_ref, 0)
+
+#ifndef DEBUG_REF
#define PA_REFCNT_INIT(p) \
- AO_store_release_write(&(p)->_ref, 1)
+ pa_atomic_store(&(p)->_ref, 1)
#define PA_REFCNT_INC(p) \
- AO_fetch_and_add1_release_write(&(p)->_ref)
+ pa_atomic_inc(&(p)->_ref)
#define PA_REFCNT_DEC(p) \
- (AO_fetch_and_sub1_release_write(&(p)->_ref)-1)
+ (pa_atomic_dec(&(p)->_ref)-1)
-#define PA_REFCNT_VALUE(p) \
- AO_load_acquire_read(&(p)->_ref)
+#else
+
+/* If you need to debug ref counting problems define DEBUG_REF and
+ * set $PULSE_LOG_BACKTRACE=5 or suchlike in the shell when running
+ * PA */
+
+#define PA_REFCNT_INIT(p) \
+ do { \
+ pa_atomic_store(&(p)->_ref, 1); \
+ pa_log("REF: Init %p", p); \
+ } while (false)
+
+#define PA_REFCNT_INC(p) \
+ do { \
+ pa_atomic_inc(&(p)->_ref); \
+ pa_log("REF: Inc %p", p); \
+ } while (false) \
+
+#define PA_REFCNT_DEC(p) \
+ ({ \
+ int _j = (pa_atomic_dec(&(p)->_ref)-1); \
+ if (_j <= 0) \
+ pa_log("REF: Done %p", p); \
+ else \
+ pa_log("REF: Dec %p", p); \
+ _j; \
+ })
+
+#endif
#endif