Didn't think it was required, but once the app started getting messages
in the background it stoped working or crashed. Changes are minimal
because this service isn't responsible for receiving messages: it
doesn't have the long-lived threads of the BT and Relay services.
Lots of threads call the smsproto code now so the existing check was
failing. Replace it with one that ensures that only one thread at a time
is running the code. Debug-builds only.
What I've been calling SMS is now "data sms" (or "nbs", in
code). There's a new way of inviting, called "User Sms" or somesuch,
that launches the user's SMS app with a URL and phone number, much like
email (save that no addressing is required by the inviter.) This new way
won't be involved in the ban on SMS permissions. (But play by NBS is
still awesome and will stay where it can.)
Get rid of the single sender thread and the complexity of querying
individual queues for their state (and the slowdown that happened when
successful writes had to wait for those to devices that weren't
responding). Instead each PacketAccumulator does its own waiting with
timeouts and backoffs, wakes itself when appropriate, and periodically
sends if it can make a connection. Now when there are a bunch of
messages ready they'll get sent pretty quickly once connections to the
remote device start to be successful.
A device where the OS isn't servicing enqueueWork() requests won't write
back to sockets it accept()s, causing the sender's writer to block
forever. So give it 30 seconds then kill the socket.
Add support for the old protocol, and define to use it. After the next
release has been adopted and everybody can read the new protocol another
release will turn it on.
Fix race condition that would have cleared all messages including those
added after a send began. In the process, move to storing outbound
messages individually rather than concatenated in their stream format.
Set a boolean every time app's upgraded, and clear it on first launch of
MainActivity. In between, if we try to launch the BTService but the OS
doesn't schedule it, post a notification asking user to launch the app.
Lots of changes. Old BT proto is no longer compatible. New one
batches messages per device and sends all on a single connection.
The queue (now a single buffer) is now a static global and the thread
that services it doesn't die (but gloms onto whatever Service instance
is most recent.) Code to pack and unpack the protocol can probably be
reused for wifi-direct or any other pass-through transport.
I'm seeing an assertion failure in cleanup that could be explained by
the cleanup happening when initGame() has been called but no subsequent
jni method that would have added the env to the map. So let's add it
immediately so that can't happen.
