While making these tests compile and pass, we ended up tripping on the
broken bolt cursor usage painfully discovered in dcrwallet, so i've
ported that fix over as well. Would have learned about that a whole
lot sooner if those tests were never disabled..
This changes the database access APIs and each of the "manager"
packages (waddrmgr/wstakemgr) so that transactions are opened (only)
by the wallet package and the namespace buckets that each manager
expects to operate on are passed in as parameters.
This helps improve the atomicity situation as it means that many
calls to these APIs can be grouped together into a single
database transaction.
This change does not attempt to completely fix the "half-processed"
block problem. Mined transactions are still added to the wallet
database under their own database transaction as this is how they are
notified by the consensus JSON-RPC server (as loose transactions,
without the rest of the block that contains them). It will make
updating to a fixed notification model significantly easier, as the
same "manager" APIs can still be used, but grouped into a single
atomic transaction.
This is a backport of decred/dcrwallet#612.
This change moves the wait for the session RPC response (used as a
pong) to a new goroutine that does not run directly in the queue
handler. By moving this out to a new goroutine, the handler can
continue enqueuing and dequeueing notifications while waiting for the
session response. Previously, if a notifiation was sent after the
session RPC was called and before the response was received, the
rpcclient main loop would block due to being unable to enqueue the
notification.
