Date: Sun, 13 Apr 2008 07:05:51 +0000 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: Jeff Roberson <jroberson@jroberson.net> Cc: arch@freebsd.org Subject: Re: f_offset Message-ID: <18354.1208070351@critter.freebsd.dk> In-Reply-To: Your message of "Sat, 12 Apr 2008 13:51:15 -1000." <20080412132457.W43186@desktop>
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In message <20080412132457.W43186@desktop>, Jeff Roberson writes: >It's worth discussing what posix actually guarantees for f_offset as well >as what other operating systems do. I think DWIM is quite easily defined here: concurrent access only makes sense with pwrite[v](2)/pread[v](2). The non p-prefix versions should always be serialized, because there is know way of knowing where they read/write if you don't. -- 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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