Re: [linux-pm] [suspend/resume] Re: userspace notific ation from module

[BartÅomiej ZimoÅ]

Dnia 6 stycznia 2010 15:35 	Anders Eriksson <aeriksson@xxxxxxxxxxx> napisaÅ(a):
> 
> uzi18@xxxxx said:
> >  Ummm sorry, it's IM App, to be realible for such app it's needed to close
> > conn before suspend, because after resume tcp connections will wait
> > (especialy on linux) quiet a lot of time to broke and reconnect.
> 
> I don't know the details here, but shouldn't the kernel fix this internally?
> 
> If sufficient time have elapsed so the kernel _should_ have sent keep alives 
> etc on an othervise idle connection, they shold be sent immediately on resume. 
> If the other end has disappeared by then, the resulting port unreachable 
> should trigger a local closure of the tcp state which the app will notice 
> (EBADF, or similar). Or?
> 
> Seems to me the kernel should sit on enough info to handle this nicely. 
> 

Good bohevior is client to close session before suspend to not loose any message.

Best Regards
Bartlomiej Zimon

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