Re: cvs commit: src/include dirent.h src/lib/libc/gen readdir.c telldir.c

["Simon 'corecode' Schubert" <corecode@xxxxxxxxxxxx>]

Matthew Dillon wrote:
>   NOTE: DragonFly has a specific issue even after this fix which currently
>   causes seekdirs to be unreliable if any files are deleted.  DragonFly
>   translates directory entries into a filesystem-independant form and if
>   the real filesystem collapses the entry, the offsets will not be maintained
>   in the machine-independant form.

I don't think this is a problem.  Quoting from SUSv3:

If a file is removed from or added to the directory after the most recent 
call to opendir() or rewinddir(), whether a subsequent call to readdir() 
returns an entry for that file is unspecified.

and

One of the perceived problems of implementation is that returning to a 
given point in a directory is quite difficult to describe formally, in 
spite of its intuitive appeal, when systems that use B-trees, hashing 
functions, or other similar mechanisms to order their directories are 
considered. The definition of seekdir() and telldir() does not specify 
whether, when using these interfaces, a given directory entry will be seen 
at all, or more than once.

cheers
  simon

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