tt_pattern_class_add(3) — Subroutines
CDE
NAME
tt_pattern_class_add − add a value to the class information for a pattern
SYNOPSIS
#include <tt_c.h>
Tt_status tt_pattern_class_add(Tt_pattern p,
Tt_class c);
DESCRIPTION
The tt_pattern_class_add function adds a value to the class information for the specified pattern.
If the class is TT_REQUEST, the sending process expects a reply to the message.
If the class is TT_NOTICE, the sending process does not expect a reply to the message.
The p argument is a unique handle for a message pattern. This handle is returned after tt_pattern_create(3) is called. The c argument indicates whether the receiving process is to take action after the message is received. The following values are defined:
TT_NOTICE
A notice of an event. The sender does not want feedback on this message.
TT_REQUEST
A request for some action to be taken. The sender must be notified of progress, success or failure, and must receive any return values.
RETURN VALUE
Upon successful completion, the tt_pattern_class_add 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_POINTER
The pointer passed does not point to an object of the correct type for this operation.