MSG_task_receive(m_task_t * task, const char *alias);
XBT_PUBLIC(msg_comm_t) MSG_task_isend(m_task_t task, const char *alias);
-XBT_PUBLIC(void) MSG_task_dsend(m_task_t task, const char *alias);
+XBT_PUBLIC(void) MSG_task_dsend(m_task_t task, const char *alias, void_f_pvoid_t cleanup);
XBT_PUBLIC(msg_comm_t) MSG_task_irecv(m_task_t * task, const char *alias);
XBT_PUBLIC(int) MSG_comm_test(msg_comm_t comm);
XBT_PUBLIC(int) MSG_comm_testany(xbt_dynar_t comms);