Date: Wed, 23 Aug 1995 06:11:26 +1000 From: Bruce Evans <bde@zeta.org.au> To: msmith@atrad.adelaide.edu.au, terry@cs.weber.edu Cc: hackers@freebsd.org Subject: Re: Using space in a DOS filesystem Message-ID: <199508222011.GAA21010@godzilla.zeta.org.au>
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>> > 1) Look up the file >> > 2) Assert a mandatory file lock >> >> Instructions on this one would be needed 8) >Open it O_EXCL in the device node exporting code. In FreeBSD, unlike in Terryx :-), O_EXCL is only implemented for regular files. The semantics of O_EXCL are specified by POSIX (only) for regular files. They don't give mandatory locking. Everything that opens the file would have to use O_EXCL to give advisory locking. Bruce
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