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Re: PATCH: java/25330: A race condition in write_classfile
- From: "H. J. Lu" <hjl at lucon dot org>
- To: Tom Tromey <tromey at redhat dot com>
- Cc: gcc-patches at gcc dot gnu dot org, java-patches at gcc dot gnu dot org
- Date: Mon, 12 Dec 2005 10:31:46 -0800
- Subject: Re: PATCH: java/25330: A race condition in write_classfile
- References: <20051210220307.GA3876@lucon.org> <m3fyoyrxpq.fsf@localhost.localdomain>
On Mon, Dec 12, 2005 at 11:12:33AM -0700, Tom Tromey wrote:
> >>>>> "H.J." == H J Lu <hjl@lucon.org> writes:
>
> H.J.> With parallel build in libjava, several processes may want to generate
> H.J.> the same class file.
>
> When does this happen?
PR java/25330 has this info.
>
> It really shouldn't. gcj isn't eager like other java compilers -- it
> only compiles what you ask it to. We shouldn't have two invocations
> working on the same .java file.
It does happen. But it is very timing sensitive.
H.J.