tt_pattern_class_add(3) ToolTalk Functions tt_pattern_class_add(3)NAMEtt_pattern_class_add - add a value to the class information for a pat‐
tern
SYNOPSIS
#include <Tt/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 informa‐
tion 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 indi‐
cates 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 cor‐
rect type for this operation.
SEE ALSOtt_c(5), tt_pattern_create(3).
ToolTalk 1.3 1 March 1996 tt_pattern_class_add(3)
