[Qt-interest] how to trace the Unix signal?

[Thiago Macieira]

Em Segunda-feira 11. Janeiro 2010, às 04.37.40, zhu minjue escreveu:
> I run my UI application,reboot the system.after the system turn on,there
> is no any output.But if I explicitly send the 'TERM' signal in Shell
> terminal:
> $ kill -15 5323
> The Qt UI application do receive the 'SIGTERM' signal and output the
> result.
> Does anyone know why this happen?any suggestion?

Probably because your application is connected to the X server, so it's killed 
by the X server first, before signals are emitted to it.

Qt respects XSMP, so it will reply to session shutdown requests. Even if it 
didn't, it would exit after the X server closed the connection.

That happens way before the SIGTERM signal is sent.

-- 
Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org
  Senior Product Manager - Nokia, Qt Development Frameworks
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