Added null handlers for profiling events.

src/core/Log.cpp

@@ -22,9 +22,13 @@ static void defaultLogHandler( const Log& log )
 		abort();
 }
 
+static void nullProfilerEventHandler( const std::string& event ) 
+{
+}
+
 static LogHandler sg_logHandler( defaultLogHandler );
-static ProfilerHandler sg_profilerEventStartHandler( NULL );
-static ProfilerHandler sg_profilerEventEndHandler( NULL );
+static ProfilerHandler sg_profilerEventStartHandler( nullProfilerEventHandler );
+static ProfilerHandler sg_profilerEventEndHandler( nullProfilerEventHandler );
 
 LogHandler setLogHandler( LogHandler handler )
 {
@@ -36,14 +40,14 @@ LogHandler setLogHandler( LogHandler handler )
 ProfilerHandler setProfilerEventStartHandler( ProfilerHandler eventStartHandler )
 {
     ProfilerHandler previous = sg_profilerEventStartHandler;
-    sg_profilerEventStartHandler = eventStartHandler;
+    sg_profilerEventStartHandler = eventStartHandler ? eventStartHandler : nullProfilerEventHandler;
     return previous;
 }
 
 ProfilerHandler setProfilerEventEndHandler( ProfilerHandler eventEndHandler )
 {
     ProfilerHandler previous = sg_profilerEventEndHandler;
-    sg_profilerEventEndHandler = eventEndHandler;
+    sg_profilerEventEndHandler = eventEndHandler ? eventEndHandler : nullProfilerEventHandler;
     return previous;
 }
 
@@ -65,14 +69,12 @@ Logger::~Logger()
 
 void startProfilerEvent( const std::string& eventName )
 {
-    if (sg_profilerEventStartHandler != NULL)
-        sg_profilerEventStartHandler( eventName );
+    sg_profilerEventStartHandler( eventName );
 }
 
 void endProfilerEvent( const std::string& eventName )
 {
-    if (sg_profilerEventEndHandler != NULL)
-        sg_profilerEventEndHandler( eventName );
+    sg_profilerEventEndHandler( eventName );
 }
 
 BlockProfiler::~BlockProfiler()