int (*match_fun)(void *, void *,smx_activity_t), void *user_data, smx_activity_t my_synchro, bool remove_matching);
static void SIMIX_comm_start(smx_activity_t synchro);
int (*match_fun)(void *, void *,smx_activity_t), void *user_data, smx_activity_t my_synchro, bool remove_matching);
static void SIMIX_comm_start(smx_activity_t synchro);