On Mon, 17 Dec 2001 19:53:44 +0300
Evgeniy Polyakov <johnpol@2ka.mipt.ru> wrote:
> On Mon, 17 Dec 2001 10:20:28 -0500 (EST)
> Aaron Sethman <androsyn@ratbox.org> wrote:
>
> >
> > I am attempting to make a pre-existing server use SIGIO with posix rt
> > signals and I am having some difficulties with it. Mainly with
> reception
> > of POLLOUT. When exactly should this get sent? Should it only get
sent
> > when attempting to write() and getting EAGAIN, then the socket being
> ready
> > or?
>
> I suppose that you must send SIGIO when data actually arives from
socket.
> In accordance of LDD2 write() method should look something like this:
> ssize_t _write(...)
> {
> /* Some data defenitions */
>
> if (dev->async_queue)
> kill_fasync(&dev->async_queue, SIGIO, POLL_IN);
Oops... POLOUT must be in read method()
And all others must be the same.
Sorry, broken hands...
> if (down_interruptible(&dev->sem))
> return -ERESTARTSYS;
>
> /* Work with data transaction itself */
> }
>
---
WBR. //s0mbre
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