]> code.delx.au - pulseaudio/blobdiff - src/pulsecore/refcnt.h
remap: Change remapping function argument type from void to int16_t / float as approp...
[pulseaudio] / src / pulsecore / refcnt.h
index f3918213aaa5346af8259fe46fa5c630f50c0d05..d52cac831cb85656c0a3e3c0251c9f5ebfa95b85 100644 (file)
@@ -1,14 +1,14 @@
 #ifndef foopulserefcnthfoo
 #define foopulserefcnthfoo
 
-/* $Id$ */
-
 /***
   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
 ***/
 
 #include <pulsecore/atomic.h>
+#include <pulsecore/macro.h>
+#include <pulsecore/log.h>
+
+/* #define DEBUG_REF */
 
 #define PA_REFCNT_DECLARE \
-  pa_atomic_int_t _ref
+    pa_atomic_t _ref
+
+#define PA_REFCNT_VALUE(p) \
+    pa_atomic_load(&(p)->_ref)
+
+#define PA_REFCNT_INIT_ZERO(p) \
+    pa_atomic_store(&(p)->_ref, 0)
+
+#ifndef DEBUG_REF
 
 #define PA_REFCNT_INIT(p) \
-  pa_atomic_store(&p->_ref, 1)
+    pa_atomic_store(&(p)->_ref, 1)
 
 #define PA_REFCNT_INC(p) \
-  pa_atomic_inc(&p->_ref)
+    pa_atomic_inc(&(p)->_ref)
 
 #define PA_REFCNT_DEC(p) \
-  (pa_atomic_dec(&p->_ref)-1)
+    (pa_atomic_dec(&(p)->_ref)-1)
 
-#define PA_REFCNT_VALUE(p) \
-  pa_atomic_load(&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