Date: Mon, 1 Aug 2011 08:11:04 +0200 From: Vlad Galu <dudu@dudu.ro> To: Bernard van Gastel <bvgastel@bitpowder.com> Cc: hackers@freebsd.org Subject: Re: eliminating a syscall on accept()+ioctl() combo Message-ID: <7E99FCF5-66DF-422E-B2FE-28547AF916A7@dudu.ro> In-Reply-To: <E27242EA-A2DD-4CB8-92B6-8B95B3BF3B8E@bitpowder.com> References: <E27242EA-A2DD-4CB8-92B6-8B95B3BF3B8E@bitpowder.com>
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On Jul 31, 2011, at 9:59 PM, Bernard van Gastel wrote: > Hi all, >=20 > I want to reduce the number of syscalls for my networking application. = The app handles incoming connections with the 'accept()' system call. Is = there a way to specify to accept() that the newly created file = descriptors should be non-blocking (FIONBIO)? This will avoid an ioctl() = after the accept(). Thanks! >=20 > With regards, > Bernard Hi Bernard, You can make your listening socket non-blocking. Newly created file = descriptors will inherit that property. However, that will require you = to select()/poll()/kqueue() for that descriptor as well, instead of = simply blocking in accept(). HTH Vlad=
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