On Fri, Jul 03, 2009 at 12:10:17PM +0200, Dejan Muhamedagic wrote:
> > All those FDs should probably be opened with the "O_CLOEXEC" flag,
> > or alternatively by
> > flags = fcntl(fd, F_GETFD); /*error handling*/
> > fcntl(fd, F_SETFD, flags | FD_CLOEXEC); /*error handling*/
>
> Never heard of CLOEXEC. According to the manpage it's also linux
> specific.
fcntl FD_CLOEXEC is POSIX.
O_CLOEXEC is linux specific, and was introduced in linux 2.6.23 (or so
the manpage says), to avoid the race in multi-threaded applications:
t1: t2:
open
exec -----> inherited fd :(
fcntl(FD_CLOEXEC)
--
: Lars Ellenberg
: LINBIT | Your Way to High Availability
: DRBD/HA support and consulting http://www.linbit.com
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