+
+/** Callback fired when the platform is created (ie, the xml file parsed),
+ * right before the actual simulation starts. */
+extern XBT_PRIVATE xbt::signal<void()> onPlatformCreated;
+
+/** Callback fired when the main simulation loop ends, just before MSG_run (or similar) ends */
+extern XBT_PRIVATE xbt::signal<void()> onSimulationEnd;
+
+/** Callback fired when the time jumps into the future */
+extern XBT_PRIVATE xbt::signal<void(double)> onTimeAdvance;