SG_BEGIN_DECL()
+/** Check if the given simcall can be resolved
+ *
+ * \return `TRUE` or `FALSE`
+ */
int MC_request_is_enabled(smx_simcall_t req);
+
+/** Check if the given simcall is visible
+ *
+ * \return `TRUE` or `FALSE`
+ */
int MC_request_is_visible(smx_simcall_t req);
+
+/** Execute everything which is invisible
+ *
+ * Execute all the processes that are ready to run and all invisible simcalls
+ * iteratively until there doesn't remain any. At this point, the function
+ * returns to the caller which can handle the visible (and ready) simcalls.
+ */
void MC_wait_for_requests(void);
extern double *mc_time;
