What to return in async transfer callbacks?

[Matthias Kaeppler <noreply finitestate org>]

Hi,

I am using gnome-vfs to transfer files asynchronously. At least with the 
async transfer function, you can connect two callback functions, one 
which is polled with progress update and one which is called whenever 
user interaction is required (or an error occured).

The latter (I think the slot is called on_progress_sync), returns a 
guint. But which values do I have to return when I handle a query in 
this callback? Let's say I'm trying to overwrite a file which is already 
present. Then this function is called. Okay, I handle the error and then 
what? I have no idea how the return value is supposed to look like. I 
tried to return OK on several occasions, which immediately aborted the 
transfer (again, no idea why).

Weird enough, my code even compiles when I don't return anything! (at 
this point I have to mention that I am using the C++ bindings to 
gnome-vfs, so this may not be true for C code). I don't even get a warning.

Same questions apply to that other callback. Help/hints much appreciated.

Regards,
Matthias

PS: Is it save to post to this list using my primary email address? Just 
want to be sure so I don't get farmed. I am posting through gmane's 
usenet interface. Don't send replies ot this address please, see footer 
for my actual address.

--
Matthias Kaeppler           |  Tel: +49 631 3405805
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D-67663 Kaiserslautern      |  E-Mail: matthias at finitestate dot org