Re: [fuse-devel] Empty context when unlink of hidden files

[Miklos S. <mi...@sz...>]

> > > it would be handy for me since I have to look for it in
> > > /proc/*/status with a pid...
> > 
> > Can you post this code?  It could be included in libfuse.  I think
> > this is probably the best way to get the group list, since sending it
> > with each request is a waste of bandwidth for the vast majority of
> > filesystems.  And the group list can have arbitrary length, though
> > it's pretty short usually.
> 
> ok, i will take a look of the fuse code to see where i can put it

BTW, I see one problem: the 'pid' field in fuse_context is not the
process id, but in fact the thread id, that is in /proc/*/task.

For single threaded apps the thread ID and process ID are equal, so
there's no problem.  But for multithreaded apps I don't know any way
to find the process ID from the thread ID, and so to find a thread,
all processes have to be searched in proc, which could be a rather
slow process.  Maybe caching this info is the solution, but it's not
all that elegant.

Miklos