[sane-devel] OS/2 support in backends

[Erik Inge Bolsø]

On Mon, 13 Oct 2003, Henning Meier-Geinitz wrote:
>Maybe something is wrong with pthread_cancel()?
>
>Ok, the reason seems to be the blocking of all signals but sigterm in
>test.c. It works, if I don't do this. Maybe pthread_cancel() uses one
>of those signals?
>
>I guess we don't need to block the signals for the test backend. But
>at least for mustek, I need the signal blocking and the signal
>handler, otherwise the scanner may be left in a confused state if the
>scan is cancelled. Maybe I'll just block all siganls while
>reading/writing and enable all after that again. And the signal
>handler is called for all signals.
>
>Do you know which signal is used by pthread_cancel()?

"006 Topic: Conflicts between ISO/IEC 9945 (POSIX) and the Linux
 007 Standard Base.  "

http://www.opengroup.org/personal/ajosey/tr28-07-2003.txt

"225 Threaded applications cannot use SIGUSR1 or SIGUSR2."

So I'd assume it is one of those.

--
Erik I. Bolsø | email: <knan at mo.himolde.no>
The UNIX philosophy basically involves giving you enough rope to
hang yourself.  And then a couple of feet more, just to be sure.