Is it possible to have file removed upon process exit?

[Peter Pentchev]

On Sat, Nov 27, 2010 at 08:16:54PM +0100, Dirk-Willem van Gulik wrote:
> 
> Op 27 nov 2010, om 20:07 heeft Carlos A. M. dos Santos het volgende geschreven:
> 
> > On Sat, Nov 27, 2010 at 3:18 PM, Dimitry Andric <dim at freebsd.org> wrote:
> >> On 2010-11-25 21:14, Xin LI wrote:
> >>> 
> >>> 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?
> >> 
> >> Maybe your process could be the child of a parent which cleans up
> >> afterwards?  (This is an analogy from real life. ;)
> 
> Another option, depending on the situation is to fopen()/open() the file - and as soon as that is successfully done by all involved - have the creating process delete it.

Errr... didn't the original poster also write the following? :)
(admittedly, in a part that the follow-uppers skipped)

> >>> 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.

G'luck,
Peter

-- 
Peter Pentchev	roam at space.bg    roam at ringlet.net    roam at FreeBSD.org
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