From d32f94f43c296e2346c045bef770b8926794c2e8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Axel=20D=C3=B6rfler?= <axeld@pinc-software.de>
Date: Fri, 1 Oct 2010 06:49:24 +0000
Subject: [PATCH] * Added optional tracing support which can be very useful
 when debugging   reference count problems. * Minor cleanup.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38866 a95241bf-73f2-0310-859d-f6bbb57e9c96
---
 src/kits/support/Referenceable.cpp | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/src/kits/support/Referenceable.cpp b/src/kits/support/Referenceable.cpp
index 92d6cc53c7..9c6fa15550 100644
--- a/src/kits/support/Referenceable.cpp
+++ b/src/kits/support/Referenceable.cpp
@@ -3,12 +3,23 @@
  * Distributed under the terms of the MIT License.
  */
 
+
 #include <Referenceable.h>
 
 
+//#define TRACE_REFERENCEABLE
+#ifdef TRACE_REFERENCEABLE
+#	include <tracing.h>
+#	define TRACE(x, ...) ktrace_printf(x, __VA_ARGS__);
+#else
+#	define TRACE(x, ...)
+#endif
+
+
 BReferenceable::BReferenceable(bool deleteWhenUnreferenced)
-	: fReferenceCount(1),
-	  fDeleteWhenUnreferenced(deleteWhenUnreferenced)
+	:
+	fReferenceCount(1),
+	fDeleteWhenUnreferenced(deleteWhenUnreferenced)
 {
 }
 
@@ -23,6 +34,8 @@ BReferenceable::AcquireReference()
 {
 	if (atomic_add(&fReferenceCount, 1) == 0)
 		FirstReferenceAcquired();
+
+	TRACE("%p: acquire %ld\n", this, fReferenceCount);
 }
 
 
@@ -30,6 +43,7 @@ bool
 BReferenceable::ReleaseReference()
 {
 	bool unreferenced = (atomic_add(&fReferenceCount, -1) == 1);
+	TRACE("%p: release %ld\n", this, fReferenceCount);
 	if (unreferenced)
 		LastReferenceReleased();
 	return unreferenced;