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NAME
     tt_message_send_on_exit - set up  a  message  to  send  upon
     unexpected exit

SYNOPSIS
     #include <Tt/tt_c.h>
     Tt_status tt_message_send_on_exit(Tt_message m);

DESCRIPTION
     The tt_message_send_on_exit()  function  requests  that  the
     ToolTalk  service  send  this  message  if the process exits
     unexpectedly.  The message is sent to the ToolTalk  service,
     which  queues  the  message  internally  until either of two
     events occur:

        1.   The procid that sent  the  tt_message_send_on_exit()
             message  to  the ToolTalk service calls tt_close(3).
             In this case, the queued message is deleted.

        2.   The connection between the ttsession(1)  server  and
             the  process that sent the tt_message_send_on_exit()
             message to the ToolTalk service is broken; for exam-
             ple, if the application has crashed.

     In this case, the ToolTalk service matches the  queued  mes-
     sage  to  its patterns and delivers it in the same manner as
     if the process had sent the message normally before exiting.

     If a process sends a normal termination  message  but  exits
     without  calling  tt_close(3),  both  the normal termination
     message and the on_exit message are delivered.

     The m argument is the opaque handle for the message involved
     in this operation.

RETURN VALUE
     Upon successful  completion,  the  tt_message_send_on_exit()
     function  returns  the status of the operation as one of the
     following Tt_status values:

        TT_OK   The operation completed successfully.

        TT_ERR_ADDRESS
                The specified Tt_address is invalid.

        TT_ERR_CLASS
                The specified Tt_class is invalid.

        TT_ERR_FILE
                The specified file does not exist or it is  inac-
                cessible.

        TT_ERR_NOMP
                The ttsession(1) process is not running  and  the
                ToolTalk service cannot restart it.

        TT_ERR_OBJID
                The objid passed to the ToolTalk service does not
                reference an existing object spec.

SEE ALSO
     tt_c(5), tt_close(3).

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