Re: [fuse-devel] Keeping logs of the usage of a file

[Han-Wen N. <ha...@gm...>]

On Thu, Feb 28, 2013 at 3:23 PM, Goswin von Brederlow <gos...@we...> wrote:
> On Thu, Feb 28, 2013 at 01:10:16PM +0200, Nick Katsipoulakis wrote:
>> First of all, I would like to thank you for your response. It was quite
>> helpful.
>>
>> However, I would like to ask you also the following. When the FUSE
>> file-system is unmounted, which function is called. I need to know which
>> one is called, in order to call the appropriate closing functions.
>>
>> Thank you,
>> Nick
>
> /usr/include/fuse/fuse.h:
>         /**
>          * Clean up filesystem
>          *
>          * Called on filesystem exit.
>          *
>          * Introduced in version 2.3
>          */
>         void (*destroy) (void *);

The kernel on recent linuxes never sends the DESTROY opcode (I guess
it's an older protocol version), but it forgets the inodes. Forgetting
inode 1 (root) is the signal that the file system is being unmounted.


-- 
Han-Wen Nienhuys - ha...@xs... - http://www.xs4all.nl/~hanwen