On Tue, Jan 04, 2011 at 07:22:26PM +0100, Olaf van der Spek wrote: > On Tue, Jan 4, 2011 at 7:20 PM, Ian Jackson > <ijack...@chiark.greenend.org.uk> wrote: > > Olaf van der Spek writes ("Re: Source code"): > >> Renaming open files works, so that should no longer be a problem. > > > > They have to be able to be deleted. > > Why?
Because lots of programs expect something like fd = open("/tmp/foo", O_WRONLY|O_CREAT|O_EXCL); unlink("/tmp/foo"); write(fd, "data", 4); to succeed. This is how Unix filesystem semantics work and pretty much always have. POSIX allows unlink(2) to return EBUSY, but that's not at all Unixy. The only case I can see for EBUSY is what NetBSD and OpenBSD do: restrict unlinking a mount point. (This is also the only case for EBUSY on Solaris, Ultrix, and HP-UX.) -- brian m. carlson / brian with sandals: Houston, Texas, US +1 832 623 2791 | http://www.crustytoothpaste.net/~bmc | My opinion only OpenPGP: RSA v4 4096b: 88AC E9B2 9196 305B A994 7552 F1BA 225C 0223 B187
signature.asc
Description: Digital signature