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List:       freebsd-hackers
Subject:    Re: Is it possible to have file removed upon process exit?
From:       Xin LI <delphij () delphij ! net>
Date:       2010-11-29 8:20:35
Message-ID: 4CF36253.2090902 () delphij ! net
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On 11/28/10 20:43, Garrett Cooper wrote:
> On Thu, Nov 25, 2010 at 12:14 PM, Xin LI <delphij@delphij.net> wrote:
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>>
>> Hi,
>>
>> One pretty common way of having an i-node of a file removed when process
>> exit is to unlink() it while holding a descriptor of the file.  This
>> approach, however, have a side effect that other processes would not be
>> able to access the file via its name.
>>
>> For certain applications it is sometimes desirable to (e.g. for unix
>> domain sockets) have file removed when the process quit, regardless
>> whether the process is quit cleanly.  Is there a clean way to do this?
> 
>     Does it have to be nameless and/or unique?

Not nameless.

Speaking for uniqueness, I think it's unrelated (not good nor bad) for
the use case.  The name should be predictable (e.g. can be configured,
so non-child process can find it), though.

Cheers,
- -- 
Xin LI <delphij@delphij.net>	http://www.delphij.net/
FreeBSD - The Power to Serve!	       Live free or die
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