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),