1 files changed, 79 insertions, 0 deletions
diff --git a/src/pulsecore/refcnt.h b/src/pulsecore/refcnt.h
new file mode 100644
index 0000000..2e818ab
--- /dev/null
+++ b/src/pulsecore/refcnt.h
@@ -0,0 +1,79 @@
+#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 2.1 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, see <http://www.gnu.org/licenses/>.
+***/
+
+#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_INIT_ZERO(p) \
+    pa_atomic_store(&(p)->_ref, 0)
+
+#ifndef DEBUG_REF
+
+#define PA_REFCNT_INIT(p) \
+    pa_atomic_store(&(p)->_ref, 1)
+
+#define PA_REFCNT_INC(p) \
+    pa_atomic_inc(&(p)->_ref)
+
+#define PA_REFCNT_DEC(p) \
+    (pa_atomic_dec(&(p)->_ref)-1)
+
+#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