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    SubjectRe: Desperately missing a working "pselect()" or similar...
    On Friday October 5, alex@pennace.org wrote:
    > On Fri, Oct 05, 2001 at 10:36:53PM +0200, Bernd Eckenfels wrote:
    > > In article <3BBDD37D.56D7B359@isg.de> you wrote:
    > > > Without a proper pselect() implementation (the one in glibc is just
    > > > a mock-up that doesn't prevent the race condition) I'm currently
    > > > unable to come up with a good idea on how to wait on both types
    > > > of events.
    > >
    > > Isnt select() returning with EINTR?
    >
    > The select system call doesn't return EINTR when the signal is caught
    > prior to entry into select.

    A technique I used in a similar situation once went something like:

    tv.tv_sec=bignum;
    tv.tv_usec = 0;
    enable_signals();
    select(nfds, &readfds,&writefds,0,&tv);

    and have the signal handlers set tv.tv_sec to 0. (tv is a global
    variable).

    Then if the signal comes before the select, the select exits
    immediately.

    NeilBrown
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