Date: 04 Dec 1999 15:49:59 -0500 From: Randell Jesup <rjesup@wgate.com> To: freebsd-hackers@FreeBSD.ORG Subject: Re: Portable way to compare struct stat's? Message-ID: <ybuk8muh1mw.fsf@jesup.eng.tvol.net.jesup.eng.tvol.net> In-Reply-To: Assar Westerlund's message of "04 Dec 1999 20:42:37 %2B0100" References: <ybu4se3lomv.fsf@jesup.eng.tvol.net.jesup.eng.tvol.net> <3845712D.F4D51A70@softweyr.com> <v04210100b46cd2f23ff6@[128.113.24.47]> <5lwvqu7as2.fsf@foo.sics.se>
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Assar Westerlund <assar@sics.se> writes:
>> we should start by creating an "fcompare()" routine, which you'd
>> pass two file descriptors to and it would say if they're the same
>> file. Initially that routine could just do two fstat()'s, and
>> compare st_dev and st_ino. We could then expand it to do better
>> comparisons for other file-systems.
>
>In solaris there's a vnode operation vop_cmp that does exactly that.
>But it's not exported to userland in any way.
Sounds like what we'd want to build it upon. If the FS doesn't
support it, use st_dev/st_ino. The real problem is getting people to
switch.
--
Randell Jesup, Worldgate Communications, ex-Scala, ex-Amiga OS team ('88-94)
rjesup@wgate.com
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