Re: [fuse-devel] CUSE: How to get poll timeout and parameters ? Possible Bug ?

[Stefan S. <dev...@gm...>]

Hi !

On 09/21/2012 06:03 PM, Miklos Szeredi wrote:
>> 3.	The poll timeout is IMHO the *most* important field.
>> 	Within that timeout, our callback function should return.
>> 	That is, either with an event or with a timeout return code.
>> 	
>> 	-- If this information is not available from within the
>> 	   callback function, how is it possible to create a correct
>> 	   poll behavior *at all* ?
> 
> The ->poll() method should reply *immediately*.  If there were no events
> at the time of call, then it should return an empty event mask.
> 
> If the pollhandle is non-NULL then the driver should call
> fuse_lowelevel_notify_poll() when *any* event occurs.
> 
> The poll notification needs to be called only once per event, regardless
> of the number of times ->poll() was called previously without an event
> occuring.

Thanks for clearing this up.

Regards,
Stefan