CDE/cde/doc/C/guides/man/man4/Signal.sgm

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<!-- (c) Copyright 1995 Hewlett-Packard Company. -->
<!-- (c) Copyright 1995 International Business Machines Corp. -->
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<![ %CDE.C.CDE; [<RefEntry Id="CDEMX.XCDI.MAN313.rsml.1">]]>
<![ %CDE.C.XO; [<RefEntry Id="XCDI.MAN313.rsml.1">]]>
<RefMeta>
<RefEntryTitle>Signal</RefEntryTitle>
<ManVolNum>special file</ManVolNum>
</RefMeta>
<RefNameDiv>
<RefName><Symbol Role="Message">Signal</Symbol></RefName>
<RefPurpose>send a (POSIX-style) signal to a tool
</RefPurpose>
</RefNameDiv>
<!-- $XConsortium: Signal.sgm /main/6 1996/09/08 20:16:18 rws $-->
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<!-- (c) Copyright 1993, 1994, 1995 Hewlett-Packard Company-->
<!-- (c) Copyright 1993, 1994, 1995 International Business Machines Corp.-->
<!-- (c) Copyright 1993, 1994, 1995 Sun Microsystems, Inc.-->
<!-- (c) Copyright 1993, 1994, 1995 Novell, Inc.-->
<RefSynopsisDiv>
<Synopsis>Signal(in string <Emphasis>theSignal</Emphasis>);
</Synopsis>
</RefSynopsisDiv>
<RefSect1>
<Title>DESCRIPTION</Title>
<Para>The
<Symbol Role="Message">Signal</Symbol> request
asks the handling procid to send itself the
indicated POSIX signal.
</Para>
<Para>The
<Emphasis>theSignal</Emphasis> argument
is the signal to send.
</Para>
</RefSect1>
<RefSect1>
<Title>APPLICATION USAGE</Title>
<Para>The
&cdeman.ttdt.session.join;, function can be used to register for,
and transparently process, the
<Symbol Role="Message">Signal</Symbol> request.
</Para>
</RefSect1>
<RefSect1>
<Title>EXAMPLES</Title>
<Para>The
<Symbol Role="Message">Signal</Symbol> request can be sent as in the following example:
</Para>
<InformalExample Remap="indent">
<ProgramListing>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);
</ProgramListing>
</InformalExample>
</RefSect1>
<![ %CDE.C.CDE; [
<RefSect1>
<Title>WARNINGS</Title>
<Para><Symbol Role="Message">Signal</Symbol> can also be sent as a multicast notice, as an
<Emphasis>edict</Emphasis> to all tools in the scope of the message.
The consequences of doing so can be severe and unexpected.
</Para>
</RefSect1>
]]>
<RefSect1>
<Title>SEE ALSO</Title>
<Para><Function>sigaction</Function>(2) <![ %CDE.C.XO; [in the &str-ZK;;
]]>&cdeman.tt.message.arg.add;, &cdeman.tt.message.send;, &cdeman.ttdt.session.join;.</Para>
</RefSect1>
</RefEntry>
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