When a wallet uses avoid_reuse and has a large number of outputs in
a single destination, it groups these outputs in OutputGroups that
are no larger than OUTPUT_GROUP_MAX_ENTRIES. The goal is to spend
as many outputs as possible from the destination while not breaking
consensus due to a huge number of inputs and also not surprise the
use with high fees. If there are n outputs in a destination and
n > OUTPUT_GROUP_MAX_ENTRIES then this results in one or many groups
of size OUTPUT_GROUP_MAX_ENTRIES and possibly one group of size
< OUTPUT_GROUP_MAX_ENTRIES.
Prior to this commit the coin selection in the case where
n > OUTPUT_GROUP_MAX_ENTRIES was skewed towards the one group of
size < OUTPUT_GROUP_MAX_ENTRIES if it exists and the amount to be
spent by the transaction is smaller than the aggregate of those
of the group size < OUTPUT_GROUP_MAX_ENTRIES. The reason is that
the coin selection decides between the different groups based on
fees and mostly the smaller group will cause smaller fees.
The behavior that users of the avoid_reuse flag seek is that the
full groups of size OUTPUT_GROUP_MAX_ENTRIES get used first. This
commit implements this by pretending that the small group has
a large number of ancestors (one smallet than the maximum allowed
for this wallet). This dumps the small group to the bottom of the
list of priorities in the coin selection algorithm.
48973402d8bccb673eaeb68b7aa86faa39d3cb8a wallet: Avoid use of Chain::Lock in CWallet::GetKeyBirthTimes (Russell Yanofsky)
e958ff9ab5607da2cd321f29fc785a6d359e44f4 wallet: Avoid use of Chain::Lock in CWallet::CreateTransaction (Russell Yanofsky)
c0d07dc4cba7634cde4e8bf586557772f3248a42 wallet: Avoid use of Chain::Lock in CWallet::ScanForWalletTransactions (Russell Yanofsky)
1be8ff280c78c30baabae9429c53c0bebb89c44d wallet: Avoid use of Chain::Lock in rescanblockchain (Russell Yanofsky)
3cb85ac594f115db99f96b0a0f4bfdcd69ef0590 wallet refactor: Avoid use of Chain::Lock in CWallet::RescanFromTime (Russell Yanofsky)
f7ba881bc669451a60fedac58a449794702a3e23 wallet: Avoid use of Chain::Lock in listsinceblock (Russell Yanofsky)
bc96a9bfc61afdb696fb92cb644ed5fc3d1793f1 wallet: Avoid use of Chain::Lock in importmulti (Russell Yanofsky)
25a9fcf9e53bfa94e8f8b19a4abfda0f444f6b2a wallet: Avoid use of Chain::Lock in importwallet and dumpwallet (Russell Yanofsky)
c1694ce6bb7e19a8722d5583cd85ad17da40bb67 wallet: Avoid use of Chain::Lock in importprunedfunds (Russell Yanofsky)
ade5f87971211bc67753f14a0d49e020142efc7c wallet refactor: Avoid use of Chain::Lock in qt wallettests (Russell Yanofsky)
f6da44ccce4cfff53433e665305a6fe0a01364e4 wallet: Avoid use of Chain::Lock in tryGetTxStatus and tryGetBalances (Russell Yanofsky)
bf30cd4922ea62577d7bf63f5029e8be62665d45 refactor: Add interfaces::FoundBlock class to selectively return block data (Russell Yanofsky)
Pull request description:
This is a set of changes updating wallet code to make fewer calls to `Chain::Lock` methods, so the `Chain::Lock` class will be easier to remove in #16426 with fewer code changes and small changes to behavior.
ACKs for top commit:
MarcoFalke:
re-ACK 48973402d8, only change is fixing bug 📀
fjahr:
re-ACK 48973402d8bccb673eaeb68b7aa86faa39d3cb8a, reviewed rebase and changes since last review, built and ran tests locally
ariard:
Coce Review ACK 4897340, only changes are one suggested by last review on more accurate variable naming, human-readable output, args comments in `findCommonAncestor`
Tree-SHA512: cfd2f559f976b6faaa032794c40c9659191d5597b013abcb6c7968d36b2abb2b14d4e596f8ed8b9a077e96522365261299a241a939b3111eaf729ba0c3ef519b
b5795a788639305bab86a8b3f6b75d6ce81be083 Wallet: Add warning comments and assert to CWallet::DelAddressBook (Luke Dashjr)
6d2905f57aaeb3ec3b63d31043f7673ca10003f2 Wallet: Avoid unnecessary/redundant m_address_book lookups (Luke Dashjr)
c751d886f499257627b308b11ffaa51c22db6cc0 Wallet: Avoid treating change-in-the-addressbook as non-change everywhere (Luke Dashjr)
8e64b8c84bcbd63caea06f3af087af1f0609eaf5 Wallet: New FindAddressBookEntry method to filter out change entries (and skip ->second everywhere) (Luke Dashjr)
65b6bdc2b164343ec3cc3d32a0297daff9e24fec Wallet: Add CAddressBookData::IsChange which returns true iff label has never been set (Luke Dashjr)
144b2f85da4d51bf7d72b987888ddcaf5b429eed Wallet: Require usage of new CAddressBookData::setLabel to change label (Luke Dashjr)
b86cd155f6f661052042048aa7cfc2a397afe4f7 scripted-diff: Wallet: Rename mapAddressBook to m_address_book (Luke Dashjr)
Pull request description:
In many places, our code assumes that presence in the address book indicates a non-change key, and absence of an entry in mapAddressBook indicates change.
This no longer holds true after #13756 (first released in 0.19) since it added a "used" DestData populated even for change addresses. Only avoid-reuse wallets should be affected by this issue.
Thankfully, populating DestData does not write a label to the database, so we can retroactively fix this (so long as the user didn't see the change address and manually assign it a real label).
Fixing it is accomplished by:
* Adding a new bool to CAddressBookData to track if the label has ever been assigned, either by loading one from the database, or by assigning one at runtime.
* `CAddressBookData::IsChange` and `CWallet::FindAddressBookEntry` are new methods to assist in excluding change from code that doesn't expect to see them.
* For safety in merging, `CAddressBookData::name` has been made read-only (the actual data is stored in `m_label`, a new private member, and can be changed only with `setLabel` which updates the `m_change` flag), and `mapAddressBook` has been renamed to `m_address_book` (to force old code to be rebased to compile).
A final commit also does some minor optimisation, avoiding redundant lookups in `m_address_book` when we already have a pointer to the `CAddressBookData`.
ACKs for top commit:
ryanofsky:
Code review ACK b5795a788639305bab86a8b3f6b75d6ce81be083. Pretty clever and nicely implemented fix!
jonatack:
ACK b5795a788639305bab86a8b3f6b75d6ce81be083 nice improvements -- code review, built/ran tests rebased on current master ff53433fe4ed06893d7c4 and tested manually with rpc/cli
jnewbery:
Good fix. utACK b5795a788.
Tree-SHA512: 40525185a0bcc1723f602243c269499ec86ecb298fecb5ef24d626bbdd5e3efece86cdb1084ad7eebf7eeaf251db4a6e056bcd25bc8457b417fcbb53d032ebf0
Previous versions assumed absence of an entry in mapAddressBook indicated change.
This no longer holds true (due to bugs) and will shortly be made intentional.
Renaming the field helps ensure that old code using mapAddressBook directly gets checked for necessary rebasing.
-BEGIN VERIFY SCRIPT-
sed -i -e 's/mapAddressBook/m_address_book/g' $(git grep -l 'mapAddressBook' ./src)
-END VERIFY SCRIPT-
This is a step toward removing the Chain::Lock class and reducing cs_main
locking.
This change only affects behavior in the case where wallet last block processed
falls behind the chain tip, where it will treat the last block processed as the
current tip.
This is a step toward removing the Chain::Lock class and reducing cs_main
locking.
This change only affects behavior in the case where wallet last block processed
falls behind the chain tip, where it may set a different lock time.
This is a step toward removing the Chain::Lock class and reducing cs_main
locking.
This change affects behavior in a few small ways.
- If there's no max_height specified, percentage progress is measured ending at
wallet last processed block instead of node tip
- More consistent error reporting: Early check to see if start_block is on the
active chain is removed, so start_block is always read and the triggers an
error if it's unavailable
This is a step toward removing the Chain::Lock class and reducing cs_main
locking.
This change only affects behavior in the case where wallet last block processed
falls behind the chain tip. The rescanblockchain error height error checking
will just be stricter in this case and only accept values up to the last
processed height
FoundBlock class allows interfaces::Chain::findBlock to return more block
information without having lots of optional output parameters. FoundBlock class
is also used by other chain methods in upcoming commits.
There is mostly no change in behavior. Only exception is
CWallet::RescanFromTime now throwing NonFatalCheckError instead of
std::logic_error.
Currently it's possible for ReleaseWallet to delete the CWallet pointer while
it is processing BlockConnected, etc chain notifications.
To fix this, unregister from notifications earlier in UnloadWallet instead of
ReleaseWallet, and use a new RegisterSharedValidationInterface function to
prevent the CValidationInterface shared_ptr from being deleted until the last
notification is actually finished.
e57980b4738c10344baf136de3e050a3cb958ca5 [mempool] Remove NotifyEntryAdded and NotifyEntryRemoved callbacks (John Newbery)
2dd561f36124972d2364f941de9c3417c65f05b6 [validation] Remove pool member from ConnectTrace (John Newbery)
969b65f3f527631ede1a31c7855151e5c5d91f8f [validation] Remove NotifyEntryRemoved callback from ConnectTrace (John Newbery)
5613f9842b4000fed088b8cf7b99674c328d15e1 [validation] Remove conflictedTxs from PerBlockConnectTrace (John Newbery)
cdb893443cc16edf974f099b8485e04b3db1b1d7 [validation interface] Remove vtxConflicted from BlockConnected (John Newbery)
1168394d759b13af68acec6d5bfa04aaa24561f8 [wallet] Notify conflicted transactions in TransactionRemovedFromMempool (John Newbery)
Pull request description:
These boost signals were added in #9371, before we had a `TransactionRemovedFromMempool` method in the validation interface. The `NotifyEntryAdded` callback was used by validation to build a vector of conflicted transactions when connecting a block, which the wallet was notified of in the `BlockConnected` CValidationInterface callback.
Now that we have a `TransactionRemovedFromMempool` callback, we can fire that signal directly from the mempool for conflicted transactions.
Note that #9371 was implemented to ensure `-walletnotify` events were fired for these conflicted transaction. We inadvertently stopped sending these notifications in #16624 (Sep 2019 commit 7e89994). We should probably fix that, but in a different PR.
ACKs for top commit:
jonatack:
Re-ACK e57980b
ryanofsky:
Code review ACK e57980b4738c10344baf136de3e050a3cb958ca5, no code changes since previous review, but helpful new code comments have been added and the PR description is now more clear about where the old code came from
Tree-SHA512: 3bdbaf1ef2731e788462d4756e69c42a1efdcf168691ce1bbfdaa4b7b55ac3c5b1fd4ab7b90bcdec653703600501b4224d252cfc086aef28f9ce0da3b0563a69
The only CValidationInterface client that cares about transactions that
are removed from the mempool because of CONFLICT is the wallet.
Start using the TransactionRemovedFromMempool method to notify about
conflicted transactions instead of using the vtxConflicted vector in
BlockConnected.
Not all ScriptPubKeyMans will be able to provide private keys,
but pubkeys and scripts should be. So only provide public-only
SigningProviders, i.e. ones that can help with Solving.
Instead of fetching a SigningProvider from ScriptPubKeyMan in order
to fill and sign the keys and scripts for a PSBT, just pass that
PSBT to a new FillPSBT function that does all that for us.
CWallet::CanGetAddresses() is used to check whether the wallet has available or is able to produce keys for addresses. It uses the ScriptPubKeyMan::CanGetAddresses(), which in turn uses the const KeypoolCountExternalKeys() method, all which do counting and no modifications.
These functions are used to mark/check if a key of our own has been used to spend (and only for avoid-reuse wallets), which has nothing to do with the destination/address itself.
Give them more accurate names to avoid confusion.
-BEGIN VERIFY SCRIPT-
sed -i -e 's/UsedDestination/SpentKey/g' $(git grep -l 'UsedDestination' ./src)
-END VERIFY SCRIPT-
4e9efac678a9c0ea4e4c7dd956ea036ae6cf17ec test: Check wallet name in -walletnotify script (João Barbosa)
9a5b5ee81f15b1d89cb25ff3e137a672536cdc46 wallet: Replace %w by wallet name in -walletnotify script (João Barbosa)
Pull request description:
Fixes#13237.
ACKs for top commit:
laanwj:
ACK 4e9efac678a9c0ea4e4c7dd956ea036ae6cf17ec
Tree-SHA512: 189dd1c785485f2e974d7c12531851b2a977778b3b954aa95efd527322ba3345924cfd587fb9c90b0fa979202af0ab2d90e53d125fe266a36c94f757e4176203
Needed for future ScriptPubKeyMans which may need to create
SigningProviders dynamically and thus a normal pointer is not enough
This commit does not change behavior.
Add wallet logic for dealing with multiple ScriptPubKeyMan instances. This
doesn't change current behavior because there is still only a single
LegacyScriptPubKeyMan. But in the future the new logic will be used to support
descriptor wallets.
6dd59d2e491bc11ab26498668543e65440a3a931 Don't allow implementers to think ScriptHash(Witness*()) results in nesting computation (Gregory Sanders)
4b8f1e989f3b969dc628b0801d5c31ebd373719c IsUsedDestination shouldn't use key id as script id for ScriptHash (Gregory Sanders)
Pull request description:
Regression introduced in https://github.com/bitcoin/bitcoin/pull/17621 which causes p2sh-segwit addresses to be erroneously missed.
Tests are only failing in 0.19 branch, likely because that release still uses p2sh-segwit addresses rather than bech32 by default.
I'll devise a test case to catch this going forward.
ACKs for top commit:
achow101:
ACK 6dd59d2e491bc11ab26498668543e65440a3a931
MarcoFalke:
ACK 6dd59d2
meshcollider:
Code review ACK 6dd59d2e491bc11ab26498668543e65440a3a931
Tree-SHA512: b3e0f320c97b8c1f814cc386840240cbde2761fee9711617b713d3f75a4a5dce2dff2df573d80873df42a1f4b74e816ab8552a573fa1d62c344997fbb6af9950
6fc554f591d8ea1681b8bb25aa12da8d4f023f66 wallet: Reset reused transactions cache (Fabian Jahr)
Pull request description:
Fixes#17603 (together with #17824)
`getbalances` is using the cache within `GetAvailableCredit` under certain conditions [here](35fff5be60/src/wallet/wallet.cpp (L1826)). For a wallet with `avoid_reuse` activated this can lead to inconsistent reporting of `used` transactions/balances between `getbalances` and `listunspent` as pointed out in #17603. When an address is reused before the first transaction is spending from this address, the cache is not updated even after the transaction is sent. This means the remaining outputs at the reused address are not showing up as `used` in `getbalances`.
With this change, any newly incoming transaction belonging to the wallet marks all the other outputs at the same address as dirty.
ACKs for top commit:
kallewoof:
Code review re-ACK 6fc554f591d8ea1681b8bb25aa12da8d4f023f66
promag:
ACK 6fc554f591d8ea1681b8bb25aa12da8d4f023f66.
achow101:
Re-ACK 6fc554f591d8ea1681b8bb25aa12da8d4f023f66
meshcollider:
Code review ACK 6fc554f591d8ea1681b8bb25aa12da8d4f023f66
Tree-SHA512: c4cad2c752176d16d77b4a4202291d20baddf9f27250896a40274d74a6945e0f6b34be04c2f9b1b2e756d3ac669b794969df8f82a98e0b16f10e92f276649ea2
