# HG changeset patch
# User Thinker K.F. Li <thinker@branda.to>
# Date 1221551041 -28800
# Node ID 55f2c6402c81e4b8d862ad7ffdec78f03008ce62
# Parent  1c1f28c124c958bfb97087fe581b0f28652acf37
-

diff -r 1c1f28c124c9 -r 55f2c6402c81 src/observer.c
--- a/src/observer.c	Tue Sep 16 15:31:49 2008 +0800
+++ b/src/observer.c	Tue Sep 16 15:44:01 2008 +0800
@@ -3,6 +3,10 @@
 #include "observer.h"
 #include "tools.h"
 
+#ifndef ASSERT
+#define ASSERT(x)
+#endif
+
 subject_t *subject_new(ob_factory_t *factory, void *obj, int obj_type) {
     subject_t *subject;
 
@@ -24,6 +28,7 @@
 void subject_free(ob_factory_t *factory, subject_t *subject) {
     observer_t *observer;
 
+    ASSERT(!(subject->flags & SUBF_FREE));
     if(subject->flags & SUBF_BUSY) {
 	/* Postpond the request until busy status been stoped.
 	 * SUBF_BUSY means in subject_notify().