Signal(4)

Signal(4)	 DEVICES AND NETWORK INTERFACES		Signal(4)

NAME
     Signal request - send a (POSIX-style) signal to a tool

SYNOPSIS
     Signal(in string theSignal);

DESCRIPTION
     The Signal	request	asks the handling procid to  send  itself
     the indicated POSIX signal.

     The theSignal argument is the signal to send.

APPLICATION USAGE
     The ttdt_session_join(3), function	can be used  to	 register
     for, and transparently process, the Signal	request.

EXAMPLES
     The Signal	request	can be sent as in the following	example:

	  Tt_message msg = tttk_message_create(0, TT_REQUEST, TT_SESSION,
		      the_recipient_procid, TTDT_SIGNAL,
		      my_callback);
	  tt_message_arg_add(msg, TT_IN, Tttk_string, "SIGHUP");
	  tt_message_send(msg);

WARNINGS
     Signal can	also be	sent as	a multicast notice, as	an  edict
     to	 all tools in the scope	of the message.	 The consequences
     of	doing so can be	severe and unexpected.

SEE ALSO
     sigaction(2) tt_message_arg_add(3), tt_message_send(3),
     ttdt_session_join(3),

Unix System LaboratorLast change: 13 May 1994			1