gc profiling

Index: source/graphics/MapGenerator.cpp
===================================================================
--- source/graphics/MapGenerator.cpp    (revision 13133)
+++ source/graphics/MapGenerator.cpp    (working copy)
@@ -64,6 +64,8 @@
 {
    debug_SetThreadName("MapGenerator");

+   g_Profiler2.RegisterCurrentThread("mapgenerator");
+
    CMapGeneratorWorker* self = static_cast<CMapGeneratorWorker*>(data);

    self->m_ScriptInterface = new ScriptInterface("RMS", "MapGenerator", ScriptInterface::CreateRuntime(RMS_RUNTIME_SIZE));
Index: source/scriptinterface/ScriptInterface.cpp
===================================================================
--- source/scriptinterface/ScriptInterface.cpp  (revision 13133)
+++ source/scriptinterface/ScriptInterface.cpp  (working copy)
@@ -436,6 +436,34 @@
    return JS_TRUE;
 }

+JSBool GCCallback(JSContext* UNUSED(cx), JSGCStatus status)
+{
+   switch(status)
+   {
+   case JSGC_BEGIN:
+       if (CProfileManager::IsInitialised() && ThreadUtil::IsMainThread())
+           g_Profiler.Start("JS GC");
+
+       g_Profiler2.RecordRegionEnter("JS GC");
+       break;
+   case JSGC_MARK_END:
+       g_Profiler2.RecordEvent("JS GC mark end");
+       break;
+   case JSGC_FINALIZE_END:
+       g_Profiler2.RecordEvent("JS GC finalize end");
+       break;
+   case JSGC_END:
+       if (CProfileManager::IsInitialised() && ThreadUtil::IsMainThread())
+           g_Profiler.Stop();
+
+       g_Profiler2.RecordRegionLeave("JS GC");
+       break;
+   default:
+       debug_warn(L"Invalid status in GCCallback");
+   }
+   return JS_TRUE;
+}
+
 // Math override functions:

 // boost::uniform_real is apparently buggy in Boost pre-1.47 - for integer generators
@@ -488,6 +516,8 @@

    JS_SetErrorReporter(m_cx, ErrorReporter);

+   JS_SetGCCallback(m_cx, GCCallback);
+
    uint32 options = 0;
    options |= JSOPTION_STRICT; // "warn on dubious practice"
    options |= JSOPTION_XML; // "ECMAScript for XML support: parse <!-- --> as a token"