Getting ANRs because (I think) the main thread's waiting for the write
thread to die and now the write thread's doing a ton of work
sometimes. So move the threads into a standalone object that can be
allowed to die on its own time without anybody waiting.
I *think* the reason I'm occasionally seeing toasts about not finding a
move is that when the engine's interrupted by there being a UI event in
the queue that error is posted. Instead try posting only when at the end
of the search nothing's been found.
Having reconfigured to use non-existent relay port as a test of falling
back to the web apis, tweak stuff: send the packets that have been
accumulated when an EOQ is found (rather than dropping all of them
immediately) before exiting the write thread; and start the threads up
when posting a packet in case they aren't (they may not be when the post
happens via timer firing.)
Seemed to be causing ANRs. Integrate instead into outgoing message queue
by using poll(timeout) then checking for unack'd packets every time
through the loop (but not more than once/3 seconds or so.)
Presence of timestamp instead of a boolean determines whether packet
should next via Web. Timestamps might also allow to process a larger
number of unacked packets in a single timer fire....
Track ack'd and unack'd packets. When there are ten more of the latter,
skip the UDP-send step. This is probably not the algorithm I'll settle
on (an explicit PING to the relay over UDP might be simpler), but it's
simple and easy.
Send each packet via UDP if that's thought to be working (always is,
now) and start a 10-second timer. If it hasn't been ack'd by then,
resend via Web API. Tested by configuring to use a UDP socket that the
relay isn't listening on. Only problem is that the backoff timers are
broken: never stops sending every few seconds.
The plan's to use the native relay protocol first, then to fall back to
the slower but more reliable (esp. on paranoid/block-everything wifi
networks) webAPI. This is the name change without behavior
change (except that the native kill() to report deleted games is gone.)
