Waking up once a second will improve your response time and cause negligible extra cpu usage.
I see... I can get quicker resonse. This seems good compromize for me.
But I suspect that in your real code you are wanting to do more in the while than just sleep?
Yes. What I do in real "while loop" is like this.

1. sleep 30 seconds
2. check database
3. image conversions if there is records


Thanks for your advice.

In reply to Re^2: ctrl + c on Win32 (signal handling) by remiah
in thread ctrl + c on Win32 (signal handling) by remiah

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