Date: Mon, 07 Jul 2008 19:56:12 +0000 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: Sergey Babkin <babkin@verizon.net> Cc: arch@FreeBSD.org, Robert Watson <rwatson@FreeBSD.org> Subject: Re: Proposal: a revoke() system call Message-ID: <59733.1215460572@critter.freebsd.dk> In-Reply-To: Your message of "Mon, 07 Jul 2008 12:49:17 EST." <9820978.224231215452958017.JavaMail.root@vms227.mailsrvcs.net>
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In message <9820978.224231215452958017.JavaMail.root@vms227.mailsrvcs.net>, Ser gey Babkin writes: >Maybe make a new entry in devsw, requesting the driver to wake up >all the sleepers (either coming from a particular file descriptor, or all >the sleepers at all) and return EINTR for them. We have that, it's called ->d_purge(), but the semantics are "driver or hardware going away", not "get rid of this thread/fd". As I said earlier, this requires careful thought. If the only reason we are dicussing this, is that people find the magic pipe to select ugly, then I would even argue that we have not reached critical mass for even thinking. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.
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