XBT_PUBLIC(int) MSG_comm_test(msg_comm_t comm);
XBT_PUBLIC(void) MSG_comm_destroy(msg_comm_t comm);
XBT_PUBLIC(MSG_error_t) MSG_comm_wait(msg_comm_t comm,double timeout);
XBT_PUBLIC(int) MSG_comm_test(msg_comm_t comm);
XBT_PUBLIC(void) MSG_comm_destroy(msg_comm_t comm);
XBT_PUBLIC(MSG_error_t) MSG_comm_wait(msg_comm_t comm,double timeout);