Commit Graph

31 Commits

Author SHA1 Message Date
Conner Fromknecht
e03c818aa7
chainntnfs/txconfnotifier: remove ntfn details, bound conf depth
Removes details field from conf notifications, in favor
of using the details on the confSet. We also bound the
requested conf depth to the reorg saftey limit, as the
behavior of state tracking within the notifier is
undefined otherwise.
2018-10-26 18:32:31 -07:00
Wilmer Paulino
589dc96d88
chainntnfs/tx_notifier: extract conf reorg dispatch into method 2018-10-26 18:32:31 -07:00
Wilmer Paulino
5ae8243d0d
chainntnfs/tx_notifier: remove cached conf details on reorg
In this commit, we address a small bug where it's possible to deliver a
confirmation notification with stale confirmation details upon
registration. This can happen if a transaction has confirmed but was
reorged out of the chain later on, and a subsequent notification is
registered.
2018-10-26 18:32:31 -07:00
Wilmer Paulino
b28145b69e
chainntnfs/tx_notifier: consume reorg notification for transactions on block inclusion
In this commit, we'll attempt to consume a reorg notification for a
transaction that was previously reorged out of the chain upon block
inclusion to ensure that it is not lingering due to a client not
handling it the first time.
2018-10-26 18:32:31 -07:00
Wilmer Paulino
a4dee14b20
chainntnfs/tx_notifier: mark rescan as complete for transactions confirmed at tip
In this commit, we mark the rescan status for a transaction as complete
if we happen to detect it has confirmed within a new block that extends
the chain. We do this as otherwise, it's possible for us to not
immediately dispatch the notification upon a subsequent registration due
to the rescan state machine.
2018-10-26 18:32:31 -07:00
Conner Fromknecht
eee5311557
chainntnfs/txconnotifier: add debug logs, log errs/warnings, godocs 2018-10-26 18:32:31 -07:00
Conner Fromknecht
2dcb86bced
chainntnfs/txconfnotifier: set confset details at tip
This commit ensures that a confSet's details
are assigned in the confNotifications index
after discovering the transaction at tip. The
recent changes allow a later notification to
be dispatched on registration if an earlier one
has already discovered the confirmation details.

Before this change, it was observed that a later
registration would attempt an immediate delivery,
but fail to do so because the confset's details
were nil. This commit remedies that dispatch path,
allowing the integration tests to pass again.
2018-10-26 18:32:30 -07:00
Conner Fromknecht
32e7368e1e
chainntnfs/txconfnotifier: remove clientID from UpdateConfDetails signature 2018-10-26 18:32:30 -07:00
Conner Fromknecht
9ae6d43916
chainntnfs/txconfnotifier: split out ntfn dispatch into helper 2018-10-26 18:32:30 -07:00
Conner Fromknecht
217b1fc0ef
chainntnfs/txconfnotifier: return HistoricalConfDispatch from Register 2018-10-26 18:32:29 -07:00
Conner Fromknecht
f94de2308f
chainntnfs/txconfnotifier: return HistoricalConfDispatch from Register 2018-10-26 18:32:29 -07:00
Conner Fromknecht
74122e00f5
chainntnfs/txconfnotifier: add PkScript to ConfNtfn 2018-10-26 18:32:29 -07:00
Conner Fromknecht
37c864d6f6
chainntnfs/txconfnotifier: add HistoricalConfDispatch struct 2018-10-26 18:32:29 -07:00
Conner Fromknecht
8b8007bb5a
chainntnfs/txconfnotifier: query conf hint in Register 2018-10-26 18:32:28 -07:00
Conner Fromknecht
1babec971f
chainntnfs/txconfnotifier: isolate scanning ntfns 2018-10-26 18:32:28 -07:00
Conner Fromknecht
2f0b5596da
chainntnfs/txconfnotifier: add rescanStates 2018-10-26 18:32:28 -07:00
Conner Fromknecht
91b0e9cae5
chainntnfs/txconfnotifier: commit conf hints before notifying 2018-10-02 01:09:26 -07:00
maurycy
ac24b12bf2
multi: fix various typos in comments 2018-09-07 06:51:49 +02:00
Wilmer Paulino
6be642a033
chainntnfs: cache confirm hints within TxConfNotifier
In this commit, we extend our TxConfNotifier to cache height hints for
our confirmation events. Each transaction we've requested a confirmation
notification for will have its initial height hint cached. We increment
this height hint at every new block for unconfirmed transactions. This
allows us to retrieve the *exact* height at which the transaction has
been included in a block. By doing this, we optimize the different
ChainNotifier implementations since they will no longer have to scan
forward (and possibly fetch blocks in the neutrino/pruned node case)
from the initial height hint looking for the confirmation.
2018-08-21 12:55:50 -04:00
Wilmer Paulino
867d8524bf chainntnfs/txconfnotifier: make confirmation notifcation registration async
In this commit, we modify our TxConfNotifier struct to allow handling
notification registrations asynchronously. The Register method has been
refactored into two: Register and UpdateConfDetails. In the case that a
transaction we registered for notifications on has already confirmed,
we'll need to determine its confirmation details on our own. Once done,
this can be provided within UpdateConfDetails.

This change will pave down the road for our different chain notifiers to
handle potentially long rescans asynchronously to prevent blocking the
caller.
2018-07-31 18:23:25 -07:00
Wilmer Paulino
c43506dee9 chainntnfs: add unique ID field to track conf ntfns within notifier 2018-07-31 18:23:25 -07:00
Wilmer Paulino
ad904ebe8c chainntnfs/txconfnotifier: use concrete ErrTxConfNotifierExiting error 2018-07-31 18:23:25 -07:00
Olaoluwa Osuntokun
6f60f139f4 multi: switch over import paths from roasbeef/* to btcsuite/* 2018-07-13 17:05:39 -07:00
Wilmer Paulino
19a2bd9c7d
chainntnfs: send incremental update notifications for tx confirmations
In this commit, we introduce the ability for the different ChainNotifier
implements to send incremental updates to the subscribers of transaction
confirmations. These incremental updates represent how many
confirmations are left for the transaction to be confirmed. They are
sent to the subscriber at every new height of the chain.
2018-04-06 00:30:25 -04:00
Wilmer Paulino
09f8a72897
chainntnfs: modify watched transactions by height to use a set
In this commit, we avoid storing extra copies of a transaction when
multiple clients register to be notified for the same transaction. We do
this by using a set, which only stores unique elements.
2018-04-06 00:30:23 -04:00
Wilmer Paulino
486694a84e
chainntnfs: add Updates channel field to ConfirmationEvent
In this commit, we add a new Updates channel to our ConfirmationEvent
struct. This channel will be used to deliver updates to a subscriber of
a confirmation notification. Updates will be delivered at every
incremental height of the chain with the number of confirmations
remaining for the transaction to be considered confirmed by the
subscriber.
2018-04-06 00:30:19 -04:00
Matt Drollette
adf0d98194 multi: fix several typos in godoc comments 2017-12-17 18:40:05 -08:00
Jim Posen
280e264e8c chainntnfs: Implement quit signal in TxConfNotifier. 2017-12-14 19:16:15 -08:00
Jim Posen
2639b58e4b chainntnfs: Send negative confirmation notifications. 2017-12-14 19:16:15 -08:00
Jim Posen
122cf3b960 chainntnfs: Unit tests for TxConfNotifier.
Also fix overflow issue with reorg handling.
2017-12-14 19:16:15 -08:00
Jim Posen
d2a9dcf855 chainntnfs: TxConfNotifier struct to implement shared notifer logic.
All implementations of the ChainNotifier interface support registering
notifications on transaction confirmations. This struct is intended to
be used internally by ChainNotifier implementations to handle much of
this logic.
2017-12-14 19:16:15 -08:00