Date: Wed, 25 Aug 1999 06:05:11 -0400 (EDT) From: Thomas David Rivers <rivers@dignus.com> To: bee@wipinfo.soft.net, hackers@FreeBSD.ORG Subject: RE: Mandatory locking? Message-ID: <199908251005.GAA95394@lakes.dignus.com> In-Reply-To: <000301beeea6$1ea898a0$88291fac@wipro.tcpn.com>
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> All the files under Tandem's NSK has mandatory locking. The file cannot be > opened if another process has it opened. some thing like > > * if the file is opened for reading, any one can open it for > reading but opening for writing gives error > * if the file is open for writing, it can't be opened for > read/write > * if the process holding the file is killed, the lock is gone > * it is possible to get the pid of the process(es) which has > a given file open (like which process has file "xyz" open? > kind of query). btw, is there any way to get this info now in FBSD? This sounds interesting... But - aren't there NFS issues? I mean, in stateless access to a file - how do you know if the process holding the file is killed if it's remote? Just curious... - Dave Rivers - To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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