[fuse-devel] Echoing poll()/select() calls to underlying filesystems

[Alberto M. <alb...@bs...>]

Hello,

I'm using FUSE to create a tracing filesystem that sits between the user 
and the original filesystems and logs information about every operation 
according to a provided filter. As such, it is a "pass through" 
filesystem that should "echo" anything that arrives to it to the 
underlying filesystem, just like fusexmp.

Currently, I'm trying to implement a "pass through" fuse_poll() 
callback, and I've seen that fuse splits a standard poll() call into one 
fuse_poll() callback for each file being monitored, but the "requested 
events" aren't passed to this callback. Maybe the fuse_pollhandle 
structure passed to the callback is used for this? If it is so, where 
and when is this structure allocated? Also, what is the use of the 
fuse_notify_poll() function? I've been looking into the fsel and 
fselclient examples but I've found no clear answers to this by myself.

Thanks for your time,
Alberto Miranda

-- 
Alberto Miranda
Barcelona Supercomputing Center
Centro Nacional de Supercomputación
www   : http://www.bsc.es/StorageSystems
email : alberto.miranda(at)bsc.es
phone : (+34) 93 405 42 81