PATCH: Make Makefile.am work in parallel
Alexandre Oliva
aoliva@redhat.com
Tue May 7 11:32:00 GMT 2002
On May 7, 2002, Mark Mitchell <mark@codesourcery.com> wrote:
> I've changed write_classfile to create "foo.class.tmp" and then call
> "rename" to change it to "foo.class" after the file has been written.
> Note that "rename" is guaranteed to be atomic.
I don't think rename is really guaranteed to be atomic. IIRC, on some
OSs/file-systems, it is implemented as link&remove, but even this
would be good enough for us. As long as it's not copy&remove, which
`mv' would do to move between different filesystems, when rename
failed, we're safe.
--
Alexandre Oliva Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer aoliva@{cygnus.com, redhat.com}
CS PhD student at IC-Unicamp oliva@{lsd.ic.unicamp.br, gnu.org}
Free Software Evangelist Professional serial bug killer
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