On Sat, 22 Feb 2003, Keith Whitwell wrote:
>
> Does flush get called when the process (thread) dies as well? I'm seeing
> identical behaviour for flush() as release() -- both are being called once
> despite multiple threads holding copies of the fd.
Threads share the file descriptors, so in a threaded environment, when
thread X closes the file descriptor, then it gets closed for thread Y as
well.
> These threads (rh7.3) each have a unique pid, btw.
You could use "tgid" ie the thread group id, but that only works with
modern-style threads (ie the rh-8.1 beta).
I think the solution is to not use "pid". EVER.
Why do you care? Code that cares about pid relationships with file
descriptors is buggy. As you've found out.
Linus
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