* Update proto schema to reflect typing indicators.
* Sketch out OWSTypingIndicatorMessage.
* Add "online" to the service message params.
* Sketch out logic to send typing indicator messages.
* Sketch out OWSTypingIndicators class.
Multiple overlapping activities require proximity monitoring (namely,
CallViewController and listening to audio messages).
These activities can overlap arbitrarily, so we use a reference counting
strategy to keep proximity monitoring on as long as one of these activities is
active.
TODO
-[x] respect order of queue
-[x] replacements
-[x] those w/o completion handler
-[x] basic send+log operation persists
-[x] send+ui completion
-[x] share extension
-[x] update state jobs
-[x] App Lifecyle
-[x] settable
-[x] Mark as ready on startup
-[x] Fail appropriate jobs on startup
NICE TO HAVE
-[x] concurrent per senders
-[ ] longer retry (e.g. 24hrs)
-[ ] App Lifecyle
-[x] retry failed jobs on startup?
-[ ] reachability
DONE
-[x] basic passing test
-[x] datamodel
-[x] queue/classes
WIP: migration / autoincrement logic
TODO:
-[x] contact offer
-[ ] verify all paths that utilized timestampForSorting, e.g. make sure SN appear before the message they affect, etc.
-[x] Monotonic ID
-[x] New extension which sorts by id
-[x] Migration
-[ ] batch migration?
fixup contact offers
TODO:
-[ ] contact offer
-[ ] verify all paths that utilized timestampForSorting, e.g. make sure SN appear before the message they affect, etc.
-[x] Monotonic ID
-[x] New extension which sorts by id
-[x] Migration
-[ ] batch migration?
block manager synchronizes on self for coherent read/writes to blocking state
across threads, but we want to be able to have performant reads on the main
thread.
