Pawel Jakub Dawidek 6d0c801ea9 Use sigtimedwait(2) for signals handling in primary process.
This fixes various races and eliminates use of pthread* API in signal handler.

Pointed out by:	kib
With help from:	jilles
MFC after:	2 weeks
Obtained from:	Wheel Systems Sp. z o.o. http://www.wheelsystems.com
2010-08-30 00:06:05 +00:00
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