On Sun, 2 Feb 2003, Tom Lane wrote: > This all doesn't look good for using file locks in the way I had in > mind :-( ... but considering that all these man pages seem pretty vague, > maybe some direct experimentation is called for.
Definitely. I wonder about the NetBSD manpage quotes in the post you followed up to, given that last time I checked flock() was implmented, in the kernel, using fcntl(). Either that's changed, or the manpages are unclear or lying. This has been my experience in the past; locking semantics are subtle and unclear enough that you really need to test for exactly what you want at build time on every system, and you've got to do this testing on the filesystem you intend to put the locks on. (So you don't, e.g., test a local filesystem but end up with data on an NFS filesystem with different locking semantics.) That's what procmail does. Given this, I'm not even sure the whole idea is worth persuing. (Though I guess I should find out what NetBSD is really doing, and fix the manual pages correspond to reality.) cjs -- Curt Sampson <[EMAIL PROTECTED]> +81 90 7737 2974 http://www.netbsd.org Don't you know, in this new Dark Age, we're all light. --XTC ---------------------------(end of broadcast)--------------------------- TIP 3: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to [EMAIL PROTECTED] so that your message can get through to the mailing list cleanly
