Re: [fuse-devel] Fuse readdir is called with NULL path

[Richard S. <rea...@gm...>]

On Sun, Jul 6, 2014 at 10:37 AM, Behrooz Shafiee <sha...@gm...> wrote:
> Hello everyone,
>
>  I am developing an educational file system, and everything has gone well
> so far except readdir function. The problem is that myFS_readdir is always
> being called with "path" argument equals to NULL. Do you have any idea why
> path is always NULL? it's fine in other functions such as getattr,...
> I appreciate any help or comment. Let me know if you have any question. I
> use fuse-2.9.3 on 64 bit ubuntu. and here are my compile flags: -O2 -g
> -Wall -fmessage-length=0 -D_FILE_OFFSET_BITS=64 -std=c++11

Well, this

http://fuse.sourceforge.net/doxygen/structfuse__lowlevel__ops.html#af1ef8e59e0cb0b02dc0e406898aeaa51

says: "fi->fh will contain the value set by the opendir method, or
will be undefined if the opendir method didn't set any value."

which suggests that if you return a file handle in the opendir method,
readdir will be relative to that fh, otherwise a path will be
supplied.

That, at least, is the way the FUSE fs I am currently working on does things.

-- 
Regards,
Richard Sharpe
(何以解憂？唯有杜康。--曹操)