Summary of changes:
* Add typehints to blockchaininterface.py and jsonrpc.py;
* Move all methods called by external code to BlockchainInterface base
class or add abstract methods there;
* More dummy abstract method overrides for DummyBlockchainInterface (for
tests);
* Alphabetical ordering of imports and other minor stuff;
* Behaviour change - previously fee estimation would fail if it could
not get mempoolminfee, now will go with default 10 sat/vB.
Co-authored-by: Pulp <51127079+PulpCattel@users.noreply.github.com>
Fixes#442.
First, the CONNREFUSED socket error is handled in jsonrpc.
Second, we respond to this (but *not* to resets) with a reactor
shutdown in BitcoinCoreInterface.rpc(). This also necessitates
early-quitting in the calling function
(WalletService.transaction_monitor) since the reactor stop
will only stop future deferred calls, not the currently running
one. The obvious sys.exit approach is only used in startup,
because the reactor is not currently running at that point.
Also minor change to DummyBlockchainInterface for test.
Previous to this commit, the jmbitcoin package was accessed via
a file in jmclient `btc.py` which was originally added as an
interface to allow the client to use a non-jmbitcoin package to
provide the implementation; while this idea is useful, the way
it was implemented was not, moreover it is not currently used
and contained duplicated code that was unmanaged. Also, the
original usage of this was only by the electrum plugin, which
has currently been abandoned. This simplifies the code and
avoids spurious error messages. Note that most of the changes
are a result of pulling the logging function directly from the
jmbase package instead of indirectly via this interface (which
was unnecessary and not connected with jmbitcoin).
Make RPC connection persistent to improve high throughput RPC
access where necessary; uses keep alive and recreates connection
when it drops.
Restrict listtransaction calls to the required account, plus only
looks back 100 txs (assuming concurrent txs less than this), thus
greatly reducing the number of gettransaction calls over RPC.
Fixes bug in choose_sweep_orders (was not filtering out non-sw
orders).
Removes tickchainthread from tests, so no longer any threads used
even in tests; replaces with reactor task loop.
Temporarily removes test_wallets and test_segwit from build tests,
since they used blocking which only worked in threaded tests; these
tests must be rebuilt.