XBT_PUBLIC(int) MSG_task_Iprobe(m_channel_t channel);
XBT_PUBLIC(int) MSG_task_probe_from(m_channel_t channel);
XBT_PUBLIC(int) MSG_task_probe_from_host(int channel, m_host_t host);
XBT_PUBLIC(int) MSG_task_Iprobe(m_channel_t channel);
XBT_PUBLIC(int) MSG_task_probe_from(m_channel_t channel);
XBT_PUBLIC(int) MSG_task_probe_from_host(int channel, m_host_t host);
XBT_PUBLIC(MSG_error_t) MSG_process_sleep(double nb_sec);
XBT_PUBLIC(MSG_error_t) MSG_get_errno(void);
XBT_PUBLIC(MSG_error_t) MSG_process_sleep(double nb_sec);
XBT_PUBLIC(MSG_error_t) MSG_get_errno(void);