tt_message_fail(library call) tt_message_fail(library call)
NAMEtt_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 ser‐
vice 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
Tt/tt_c.h - Tttt_c(5), tt_message_status_set(3), tt_message_sta‐
tus_string_set(3).
tt_message_fail(library call)
