tt_message_fail(3)

NAME
     tt_message_fail - indicate a message cannot be handled

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

DESCRIPTION
     The tt_message_fail() function informs the ToolTalk service that the
     process cannot handle the request just received.

     This function also informs the ToolTalk service that the message is not
     be offered to other processes of the same ptype.  The ToolTalk service
     will send the message back to the sender with state TT_FAILED.

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

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

        TT_OK   The operation completed successfully.

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

        TT_ERR_NOTHANDLER
                This application is not the handler for this message.

        TT_ERR_POINTER
                The pointer passed does not point to an object of the correct
                type for this operation.

     The status value must be greater than TT_ERR_LAST to avoid confusion with
     the ToolTalk service status values.

APPLICATION USAGE
     To distinguish this case from the case where a message failed because no
     matching handler could be found, the application should place an
     explanatory message code in the status attribute of the message with
     tt_message_status_set(3) and tt_message_status_string_set(3) before
     calling tt_message_fail().

SEE ALSO
     Tttt_c(5), tt_message_status_set(3), tt_message_status_string_set(3).