ibmf_i_init_msg
ibmf_i_init_msg(msgimplp, msg_cb, msg_cb_args, retrans, blocking);
ibmf_i_init_msg(msgimplp, msg_cb, msg_cb_args, retrans,
void ibmf_i_init_msg(ibmf_msg_impl_t *msgimplp, ibmf_msg_cb_t trans_cb,