Date: Wed, 5 Jan 2005 09:40:29 GMT From: Roman Nikitchenko <roman@trifle.net> To: freebsd-threads@FreeBSD.org Subject: Re: threads/75795: applications linked with -lc_r can't close() fd opened by kqueue(). Message-ID: <200501050940.j059eT9N008758@freefall.freebsd.org>
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The following reply was made to PR threads/75795; it has been noted by GNATS.
From: Roman Nikitchenko <roman@trifle.net>
To: freebsd-gnats-submit@FreeBSD.org, roman@trifle.net
Cc:
Subject: Re: threads/75795: applications linked with -lc_r can't close() fd
opened by kqueue().
Date: Wed, 05 Jan 2005 11:33:04 +0200
The reason was in unimplemented kqueue_stat() call (libc_r close()
relays on fstat() ).
Here is my own version (sys/kern/kern_event.c) i used to workaround problem:
/*ARGSUSED*/
static int
kqueue_stat(struct file *fp, struct stat *st, struct ucred *active_cred,
struct thread *td)
{
struct kqueue *kq;
int error;
if ((error = kqueue_aquire(fp, &kq)))
return ENOENT;
KQ_LOCK(kq);
bzero((void *)st, sizeof(*st));
st->st_size = kq->kq_count;
kqueue_release(kq, 1);
KQ_UNLOCK(kq);
st->st_blksize = sizeof(struct kevent);
st->st_mode = S_IFIFO;
return (0);
}
Please check / apply this as soon as possible. Any binary transfered from 4.x system and using kevent() subsystem won't work until this will be done. Any application with kevent()'s linked against libc_r too.
--
WBR,
Roman Nikitchenko, http://smartgate.wtelecom.net
_,,,_|\_/|_,,,_
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