Messages in this thread | | | Date | Wed, 16 Oct 2002 12:20:03 -0700 (PDT) | From | Davide Libenzi <> | Subject | Re: [PATCH] async poll for 2.5 |
| |
On Wed, 16 Oct 2002, John Gardiner Myers wrote:
> Davide Libenzi wrote: > > >I knew you were going there, aka you do not understand how edge triggered > >API have to be used. > > > Nonsense. > > >Even if the API will drop an event at registration > >time you still cannot use this code scheme : > > > >int my_io(...) { > > > > if (event_wait(...)) > > do_io(...); > > > >} > > > >You CAN NOT. And look, it is not an API problem, it's your problem that > >you want to use the API like a poll()-like API. > > > You have insufficient basis upon which to claim I would write code as > broken as above.
Yes I have, look down 15 lines ...
> >This because you have to consume the I/O space to push the level to 0 so > >that a transaction 0->1 can happen and you can happily receive your > >events. > > > > > Of course you have to consume the I/O space to push the level to 0. > What do you think I am, stupid? > > This is done with something like: > > for (;;) { > fd = event_wait(...); > while (do_io(fd) != EAGAIN); > }
I told you did not understand the API, this code won't work for edge triggered APIs. Please consider investigating a little bit more before shooting to perfectly working APIs.
- Davide
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |