to thread the X server (?)

Glynn Clements glynn at
Wed Jun 18 14:32:08 PDT 2008

Tiago Vignatti wrote:

> >   This sounds interesting. I am not very experienced with thread
> > programming, but how does it handle signals?  If I understand correctly,
> Signal handlers are shared between all threads. OTHO, we can set signal 
> masks when a thread is created to independently handle a given signal.

ISTR that this doesn't work correctly with the older (pre-NPTL) Linux
implementation of pthreads. That selected a thread to receive the
signal without checking the signal mask; if it selected a thread which
had blocked the signal, the signal would be queued even if another
thread had the signal unblocked.

Glynn Clements <glynn at>

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