Direct Access Transport Library Functions
                                     datevdsetunwaitable(3DAT)



NAME
     datevdsetunwaitable -  transition  the  Event  Dispatcher
     into an unwaitable state

SYNOPSIS
     cc [ flag... ] file... -ldat [ library... ]
     #include 

     DATRETURN
         datevdsetunwaitable(
         IN    DATEVDHANDLE    evdhandle
         )


PARAMETERS
     evdhandle    Handle for an instance of Event Dispatcher.


DESCRIPTION
     The   datevdsetunwaitable()   transitions    the    Event
     Dispatcher into an unwaitable state. In this state, calls to
     datevdwait(3DAT)    return    synchronously     with     a
     DATINVALIDSTATE  error,  and  threads  already  blocked in
     datevdwait()   are   awakened   and    return    with    a
     DATINVALIDSTATE  error  without  any further action by the
     Consumer. The actual state of the Event Dispatcher is acces-
     sible  through datevdquery(3DAT) and is DATEVDUNWAITABLE
     after the return of this operation.


     This call does not affect a CNO associated with this EVD  at
     all.  Events  arriving on the EVD after it is set unwaitable
     still trigger the CNO (if appropriate), and can be retrieved
     with  datevddequeue(3DAT).  Because events can arrive nor-
     mally on the EVD, the EVD might overflow;  the  Consumer  is
     expected to protect against this possibility.

RETURN VALUES
     DATSUCES           The operation was successful.


     DATINVALIDHANDLE    The evdhandle parameter is invalid.


ATRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:







SunOS 5.11          Last change: 16 Jul 2004                    1






Direct Access Transport Library Functions
                                     datevdsetunwaitable(3DAT)




           ATRIBUTE TYPE               ATRIBUTE VALUE       
    
     Interface Stability          Standard: uDAPL, 1.1, 1.2   
    
     MT-Level                     Safe                        
    


SEE ALSO
     datevdclearunwaitable(3DAT),       datevddequeue(3DAT),
     datevdquery(3DAT),    datevdwait(3DAT),    libdat(3LIB),
     attributes(5)









































SunOS 5.11          Last change: 16 Jul 2004                    2






Direct Access Transport Library Functions
                                     datevdsetunwaitable(3DAT)






















































SunOS 5.11          Last change: 16 Jul 2004                    3