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38 lines
691 B
ObjectPascal
38 lines
691 B
ObjectPascal
Program example57;
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{ Program to demonstrate the SigAction function.}
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{
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do a kill -USR1 pid from another terminal to see what happens.
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replace pid with the real pid of this program.
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You can get this pid by running 'ps'.
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}
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uses oldlinux;
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Var
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oa,na : PSigActionRec;
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Procedure DoSig(sig : Longint);cdecl;
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begin
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writeln('Receiving signal: ',sig);
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end;
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begin
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new(na);
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new(oa);
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na^.Handler.sh:=@DoSig;
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na^.Sa_Mask:=0;
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na^.Sa_Flags:=0;
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na^.Sa_Restorer:=Nil;
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SigAction(SigUsr1,na,oa);
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if LinuxError<>0 then
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begin
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writeln('Error: ',linuxerror,'.');
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halt(1);
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end;
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Writeln ('Send USR1 signal or press <ENTER> to exit');
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readln;
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end.
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