we should not raise generic Exception when wanting to communicate with
the user. it makes distinguishing programming errors and messages hard,
as the caller will necessarily need to catch all Exceptions then
[trezor] connecting to device at bridge:hid...
[trezor] connected to device at bridge:hid...
Traceback (most recent call last):
File "...\electrum\electrum\base_wizard.py", line 255, in choose_hw_device
u = devmgr.unpaired_device_infos(None, plugin, devices=scanned_devices)
File "...\electrum\electrum\plugin.py", line 501, in unpaired_device_infos
client = self.create_client(device, handler, plugin)
File "...\electrum\electrum\plugin.py", line 374, in create_client
client = plugin.create_client(device, handler)
File "...\electrum\electrum\plugins\trezor\trezor.py", line 124, in create_client
client = self.client_class(transport, handler, self)
File "...\electrum\electrum\plugins\trezor\client.py", line 7, in __init__
ProtocolMixin.__init__(self, transport=transport)
File "...\Python36-32\lib\site-packages\trezorlib\client.py", line 444, in __init__
self.init_device()
File "...\Python36-32\lib\site-packages\trezorlib\client.py", line 454, in init_device
self.features = expect(proto.Features)(self.call)(init_msg)
File "...\Python36-32\lib\site-packages\trezorlib\client.py", line 115, in wrapped_f
ret = f(*args, **kwargs)
File "...\Python36-32\lib\site-packages\trezorlib\client.py", line 129, in wrapped_f
client.transport.session_begin()
File "...\Python36-32\lib\site-packages\trezorlib\transport\__init__.py", line 42, in session_begin
self.open()
File "...\Python36-32\lib\site-packages\trezorlib\transport\bridge.py", line 69, in open
raise TransportException('trezord: Could not acquire session' + get_error(r))
trezorlib.transport.TransportException: trezord: Could not acquire session (error=400 str=wrong previous session)
[DeviceMgr] error getting device infos for trezor: trezord: Could not acquire session (error=400 str=wrong previous session)
If auto_connect is enabled, allow jumping between forks too.
(Previously auto_connect was only switching servers on a given fork,
not across forks)
If there is a preferred fork set, jump to that (and stay);
if there isn't, always jump to the longest fork.
scenario with previous code:
auto_connect enabled, there is only one server in regtest environment.
client started before server; client would not switch to server after it is started.
The synchronizer would sometimes not send 'wallet_updated' triggers
if it was fast enough to do all the work between two 0.1 sec ticks.
(is_up_to_date() would return True both before and after)
It was disabled in 680df7d6b6 due to #4421,
but that has since been fixed.
Also related is #4060; and now that that is closed, the bridge transport
is not proxied anyway.
[127.0.0.1] Exception in wrapper_func : AttributeError 'ElectrumWindow' object has no attribute 'wallet'
Traceback (most recent call last):
File "/home/user/wspace/electrum/electrum/util.py", line 839, in f2
return await f(*args, **kwargs)
File "/home/user/wspace/electrum/electrum/interface.py", line 245, in wrapper_func
return await func(self, *args, **kwargs)
File "/home/user/wspace/electrum/electrum/interface.py", line 260, in run
await self.open_session(ssl_context, exit_early=False)
File "/home/user/wspace/electrum/electrum/interface.py", line 357, in open_session
await group.spawn(self.monitor_connection())
File "/usr/local/lib/python3.6/dist-packages/aiorpcx/curio.py", line 241, in __aexit__
await self.join(wait=self._wait)
File "/usr/local/lib/python3.6/dist-packages/aiorpcx/curio.py", line 214, in join
raise task.exception()
File "/home/user/wspace/electrum/electrum/address_synchronizer.py", line 173, in job
await group.spawn(self.synchronizer.main())
File "/usr/local/lib/python3.6/dist-packages/aiorpcx/curio.py", line 241, in __aexit__
await self.join(wait=self._wait)
File "/usr/local/lib/python3.6/dist-packages/aiorpcx/curio.py", line 214, in join
raise task.exception()
File "/home/user/wspace/electrum/electrum/synchronizer.py", line 181, in main
self.wallet.network.trigger_callback('wallet_updated', self.wallet)
File "/home/user/wspace/electrum/electrum/network.py", line 267, in trigger_callback
callback(event, *args)
File "/home/user/wspace/electrum/electrum/gui/qt/main_window.py", line 300, in on_network
if wallet == self.wallet:
AttributeError: 'ElectrumWindow' object has no attribute 'wallet'
Not needed since aee2d8e120
And was never really working I guess (race..)
Also, during normal initial history sync, it caused the verifier to request
proofs multiple times.
this is a performance optimisation.
measurements using a large wallet with 11k txns:
syncing XPUB for the first time takes 10 seconds. leaving window open, and
syncing same XPUB again in new window takes 30 seconds. in third window,
it takes ~50 seconds. then ~70s. presumably scaling linearly.
this is due to the history_list.update_item call being CPU-heavy.
now all of them take 10 seconds.
blockchain.read_header is expensive. do cheap tests first
on a wallet with 11k txns, that is synced except for spv proofs,
finishing sync now takes 80 sec instead of 180 sec
related: 41e088693d
If our guess of a txn getting confirmed at the same height in the new chain
as it was at in the old chain is incorrect, there is a race between the
verifier and the synchronizer. If the verifier wins, the exception will cause
us to disconnect.
