Messages in this thread | | | Date | Mon, 19 Mar 2001 21:48:12 +0100 | From | Jens-Uwe Mager <> | Subject | Re: pselect |
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>For people who prefer programming above documenting, >here is a simple small thing to do: > >POSIX.1g and Austin document a pselect() call intended to >remove the race condition that is present when one wants >to wait on either a signal or some file descriptor. >(See also Stevens, Unix Network Programming, Volume 1, 2nd Ed., >1998, p. 168 and the pselect.2 man page released today.) >Glibc 2.0 has a bad version (wrong number of parameters) >and glibc 2.1 a better version, but the whole purpose >of pselect is to avoid the race, and glibc cannot do that, >one needs kernel support. >So, probably someone should make a system call pselect >almost identical to the present select, adding a sigmask >parameter. (Or something more general.)
Well, pselect is not that interesting I suppose, ppoll would be my favorite call to make use of.
-- Jens-Uwe Mager <pgp-mailto:62CFDB25> - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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