m_channel_t channel);
MSG_error_t MSG_task_execute(m_task_t task);
int MSG_task_Iprobe(m_channel_t channel);
-void MSG_process_sleep(long double nb_sec);
+MSG_error_t MSG_process_sleep(long double nb_sec);
MSG_error_t MSG_get_errno(void);
/************************** Deprecated ***************************************/