[EMAIL PROTECTED] wrote:
On Fri, Nov 07, 2008 at 05:33:09PM -0600, Tom Mueller wrote:
/proc/self/fd is there on Linux but it's not there on Mac OS. However, they
ported the file descriptor access part of /proc to /dev/fd on Mac OS. On
Linux /dev/fd is a link to /proc/self/fd. /dev/fd is actually there on
Solaris 10 too, but it appears to have different semantics (looks like all
fds rather than just the open ones).
So maybe /dev/fd could be used on those platforms to implement a closeall.
Thanks.
Tom
What about trying /proc/self/fd first, and if it doesn't exist, then try
/dev/fd/? Is /dev/fd/ a directory on MacOS?
yes. It has an entry for every open file descriptor, just like
/proc/self/fd.
The approach you suggest sounds good.
Tom
Another approach is to use fcntl(2) and the F_GETFD option, but that
requires that we iterate over all fds, something I'd rather avoid.
Thanks,
-j
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