>>>>> "Y" == Yukihiro Matsumoto <matz / netlab.co.jp> writes:

Y> I see.  File#flock can be used to exclude control flow within same
Y> process (i.e. threads),  but since threads share memory space, threads
Y> may share locked file descriptor.  On the other hand, there's no way
Y> to share locked file descriptor between processes, thus

 OK, I've understood.

 Thanks,

Guy Decoux