Messages in this thread | | | Date | Sun, 24 Feb 2002 20:58:49 -0500 (EST) | From | Alexander Viro <> | Subject | Re: your mail |
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On Mon, 25 Feb 2002, Rusty Russell wrote:
> > Note that getting a file descriptor is really quite useful - it means that > > you can pass the file descriptor around through unix domain sockets, for > > example, and allow sharing of the semaphore across unrelated processes > > that way. > > First, fd passing sucks: you can't leave an fd somewhere and wait for > someone to pick it up, and they vanish when you exit. Secondly, you
Yes, you can. Please, RTFS - what is passed is not a descriptor, it's struct file *. As soon as datagram is sent, descriptors are resolved and after that point descriptor table of sender (or, for that matter, survival of sender) doesn't matter.
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