Rusty Russell a93c49ca65 connectd: implement @ correctly. ...

dev_blackhole_fd was a hack, and doesn't work well now we are async
(it worked for sync comms in per-peer daemons, but now we could sneak
through a read before we get to the next write).

So, make explicit flags and use them.  This is much easier now we
have all peer comms in one place.

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

2022-01-20 15:24:06 +10:30

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