Rather than going via a callback, which tends to just set up I/O, do
any setup before the call to io_new_conn(), then pass it the io_plan
directly.

The patch shows how much this simplifies our test code.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Instead of assuming they want a connection made from the new fd, hand
the fd to a callback.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

No longer needed.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

This simplifies some things: in particular, we can construct an
io_plan without needing the current io_conn.

On the other hand, we need to expose the structure now.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

We only use it in one place: for wakeup.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Ready for exposure.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Explicit callbacks are slower, but more flexible.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Sure, both listener and conn need them, but for different things
(listener uses them simply to set up conn).  Putting them in the
common union was a mistake.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Weaning off enum io_state, to allow custom ones.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

This is a better description, since it's I/O we plan to do next.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Upgrade license, since timer is LGPL.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

It's probably a bug if we're waiting for nothing.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Cleaner model for I/O, with cost of complexity if you really want bidir.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

More stress test than benchmarks, but provides a beginning.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Designed for async I/O.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Ahmed Samy <f.fallen45@gmail.com>

Signed-off-by: Ahmed Samy <f.fallen45@gmail.com>

Signed-off-by: Ahmed Samy <f.fallen45@gmail.com>

Remove the assembly file that checks if the CPUID instruction is
supported and have it in inline assembly as suggested by Rusty.
Signed-off-by: Ahmed Samy <f.fallen45@gmail.com>

If the list of addrinfos give to net_bind() contains only IPv4 or only
IPv6 addresses, then the ipv4 and ipv6 variables may be used uninitialized.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

Suggested-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Ahmed Samy <f.fallen45@gmail.com>

Also merge extended features and non-extended in 1 function.
Suggested-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Ahmed Samy <f.fallen45@gmail.com>

The new functions are:
- get_cpu_type
- get_cpu_type_string

Also add more tests on how one would parse the low-level stuff.
Signed-off-by: Ahmed Samy <f.fallen45@gmail.com>

Forgot to add this to the main commit, sorry.
Signed-off-by: Ahmed Samy <f.fallen45@gmail.com>

This module parses data provided by the cpuid instruction.
It still needs more work, however, it works for most important
stuff.
Signed-off-by: Ahmed Samy <f.fallen45@gmail.com>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Suggested-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Emilio G. Cota <cota@braap.org>

Signed-off-by: Emilio G. Cota <cota@braap.org>

The extra spaces make my web formatter think they're literal text, which
looks weird.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

I noted to Timothy in 2011:
   I finally got around to implementing license checking in ccanlint,
   and it shows that your public domain ccan/isaac module uses your LGPL
   ccan/ilog module, which partially defeats the point.

   You and I are the only ones who did anything significant to ilog; I'm
   happy to relicense to PD or whatever else you want.  Or leave it, in
   which case I'll need to document it clearly.

He finally got back to me, and I sent him this patch, to which he replied:

     Ack.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

If you're doing endian work, sparse's bitwise annotation is extremely useful.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

For use as direct locals, or when the size is a constant, inside
structure definitions.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>