tt_message_fail(library call) tt_message_fail(library call)
NAME [Toc] [Back]
tt_message_fail - indicate a message cannot be handled
SYNOPSIS [Toc] [Back]
DESCRIPTION [Toc] [Back]
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
RETURN VALUE [Toc] [Back]
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.
The ttsession(1) process is not running and the ToolTalk
service cannot restart it.
This application is not the handler for this message.
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 [Toc] [Back]
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
SEE ALSO [Toc] [Back]
Tt/tt_c.h - Tttt_c(5), tt_message_status_set(3),
- 1 - Formatted: January 24, 2005 [ Back ]