Commit graph

1116 commits

Author SHA1 Message Date
Andrew Chow
d6045d0ac6 scripted-diff: Replace WalletDatabase::Create* with CreateWalletDatabase
-BEGIN VERIFY SCRIPT-
sed -i -e 's/WalletDatabase::Create(/CreateWalletDatabase(/g' `git grep -l "WalletDatabase::Create("`
sed -i -e 's/WalletDatabase::CreateDummy(/CreateDummyWalletDatabase(/g' `git grep -l "WalletDatabase::CreateDummy("`
sed -i -e 's/WalletDatabase::CreateMock(/CreateMockWalletDatabase(/g' `git grep -l "WalletDatabase::CreateMock("`
-END VERIFY SCRIPT-
2020-06-17 14:12:41 -04:00
MarcoFalke
fa09ec83f3
Remove unused variables 2020-06-16 15:14:55 -04:00
MarcoFalke
23b2a68df5
Merge #18275: wallet: error if an explicit fee rate was given but the needed fee rate differed
44cc75f80e wallet: error if an explicit fee rate was given but the needed fee rate differed (Karl-Johan Alm)

Pull request description:

  This ensures that the code doesn't silently ignore too low fee reates. It will now trigger an error in the QT client, if the user provides a fee rate below the minimum, and becomes a necessary check for #11413.

ACKs for top commit:
  Sjors:
    utACK 44cc75f80e (rebased)
  fjahr:
    re-ACK 44cc75f80e

Tree-SHA512: cd5a60ee496e64f7ab37aaa53f7748a7393357b1629ccd9660839d366c6191b6413b871ce3aa7293fce1539336222c300ef6f86304f30a1ae8fe361b02310483
2020-06-16 13:46:10 -04:00
João Barbosa
ccf1f6ea24 refactor: Drop ::HasWallets() 2020-06-13 01:09:15 +01:00
Wladimir J. van der Laan
77b79fa6ef refactor: Error message bilingual_str consistency
- Move the decision whether to translate an error message to where it is
  defined. This simplifies call sites: no more `InitError(Untranslated(...))`.

- Make all functions in `util/error.h` consistently return a
  `bilingual_str`. We've decided to use this as error message type so
  let's roll with it.

This has no functional changes: no messages are changed, no new
translation messages are defined.
2020-06-09 15:39:44 +02:00
MarcoFalke
3657aee2d2
Merge #18982: wallet: Minimal fix to restore conflicted transaction notifications
7eaf86d3bf trivial: Suggested cleanups to surrounding code (Russell Yanofsky)
b604c5c8b5 wallet: Minimal fix to restore conflicted transaction notifications (Russell Yanofsky)

Pull request description:

  This fix is a based on the fix by Antoine Riard (ariard) in https://github.com/bitcoin/bitcoin/pull/18600.

  Unlike that PR, which implements some new behavior, this just restores previous wallet notification and status behavior for transactions removed from the mempool because they conflict with transactions in a block. The behavior was accidentally changed in two `CWallet::BlockConnected` updates: a31be09bfd and 7e89994133 from https://github.com/bitcoin/bitcoin/pull/16624, causing issue https://github.com/bitcoin/bitcoin/issues/18325.

  The change here could be improved and replaced with a more comprehensive cleanup, so it includes a detailed comment explaining future considerations.

  Fixes #18325

  Co-authored-by: Antoine Riard (ariard)

ACKs for top commit:
  jonatack:
    Re-ACK 7eaf86d3bf
  ariard:
    ACK 7eaf86d, reviewed, built and ran tests.
  MarcoFalke:
    ACK 7eaf86d3bf 🍡

Tree-SHA512: 9a1efe975969bb522a9dd73c41064a9348887cb67883cd92c6571fd2df4321b9f4568363891abdaae14a3b9b168ef8142e95c373fc04677e46289b251fb84689
2020-06-02 18:11:52 -04:00
Samuel Dobson
520e435b5e
Merge #18918: wallet: Move salvagewallet into wallettool
84ae0578b6 Add release notes about salvage changes (Andrew Chow)
ea337f2d03 Move RecoverKeysOnlyFilter into RecoverDataBaseFile (Andrew Chow)
9ea2d258b4 Move RecoverDatabaseFile and RecoverKeysOnlyFilter into salvage.{cpp/h} (Andrew Chow)
b426c7764d Make BerkeleyBatch::Recover and WalletBatch::RecoverKeysOnlyFilter standalone (Andrew Chow)
2741774214 Expose a version of ReadKeyValue and use it in RecoverKeysOnlyFilter (Andrew Chow)
ced95d0e43 Move BerkeleyEnvironment::Salvage into BerkeleyBatch::Recover (Andrew Chow)
07250b8dce walletdb: remove fAggressive from Salvage (Andrew Chow)
8ebcbc85c6 walletdb: don't automatically salvage when corruption is detected (Andrew Chow)
d321046f4b wallet: remove -salvagewallet (Andrew Chow)
cdd955e580 Add basic test for bitcoin-wallet salvage (Andrew Chow)
c87770915b wallettool: Add a salvage command (Andrew Chow)

Pull request description:

  Removes the `-salvagewallet` startup option and adds a `salvage` command to the `bitcoin-wallet` tool. As such, `-salvagewallet` is removed. Additionally, the automatic salvage that is done if the wallet file fails to load is removed.

  Lastly the salvage code entirely is moved out entirely into `bitcoin-wallet` from `walletdb.{cpp/h}` and `db.{cpp/h}`.

ACKs for top commit:
  jonatack:
    ACK 84ae0578b6 feedback taken, and compared to my previous review, the bitcoin-wallet salvage command now seems to run and it exits without raising. The new test passes at both 9454105 and 84ae057 so as a sanity check I'd agree there is room for improvement, if possible.
  MarcoFalke:
    re-ACK 84ae0578b6 🏉
  Empact:
    Code Review ACK 84ae0578b6
  ryanofsky:
    Code review ACK 84ae0578b6. Lot of small changes since previous review: added verify step before salvage, added basic test in new commit, removed unused scanstate variable and warnings parameter, tweaked various comments and strings, moved fsuccess variable declaration
  meshcollider:
    Concept / light code review ACK 84ae0578b6

Tree-SHA512: 05be116b56ecade1c58faca1728c8fe4b78f0a082dbc2544a3f7507dd155f1f4f39070bd1fe90053444384337bc48b97149df5c1010230d78f8ecc08e69d93af
2020-05-27 14:51:49 +12:00
Andrew Chow
8ebcbc85c6 walletdb: don't automatically salvage when corruption is detected 2020-05-25 12:59:22 -04:00
Andrew Chow
d321046f4b wallet: remove -salvagewallet 2020-05-25 12:39:40 -04:00
Russell Yanofsky
7eaf86d3bf trivial: Suggested cleanups to surrounding code
https://github.com/bitcoin/bitcoin/pull/18982#pullrequestreview-416974841
2020-05-22 16:30:07 -04:00
Samuel Dobson
df303ceb65
Merge #18787: wallet: descriptor wallet release notes and cleanups
ca2a09640f Change SetType to SetInternal and remove m_address_type (Andrew Chow)
89b1ce1140 Remove unimplemented SetCrypted from DescriptorScriptPubKeyMan (Andrew Chow)
b9073c8f13 rpc: createwallet warning that descriptor wallets are experimental (Andrew Chow)
610030d95c docs: Add release notes for descriptor wallets (Andrew Chow)

Pull request description:

  Some docs and cleanup following #16528.

  * Added release notes to explain a bit of motivation for descriptor wallets, what was changed, and how users will be effected by it. Also mentions the caveats regarding multsigs and watchonly that we have discussed on IRC.
  * Adds a warning to `createwallet` that descriptor wallets are experimental.
  * Removed unused `SetCrypted` as suggestioned: https://github.com/bitcoin/bitcoin/pull/16528#discussion_r415300916
  * Removed `m_address_type` as mentioned in https://github.com/bitcoin/bitcoin/pull/18782#issuecomment-620167077

ACKs for top commit:
  Sjors:
    tACK ca2a09640f
  instagibbs:
    utACK ca2a09640f
  meshcollider:
    utACK ca2a09640f

Tree-SHA512: 987188a912c191430e5d3f89bcef54ba6773692fc2d95b16a3ec11d9007ded210466ed980a3857e8b7196beef6422f07f9c85cc157f996c02d16f4dbde2e7b2a
2020-05-22 14:21:56 +12:00
gzhao408
d160069604 [wallet] remove nLastResend logic
remove nLastResend because it's unnecessary now that rebroadcasts always happen at least 12 hours later
2020-05-17 17:52:11 -07:00
Russell Yanofsky
b604c5c8b5 wallet: Minimal fix to restore conflicted transaction notifications
This fix is a based on the fix by Antoine Riard <ariard@student.42.fr> in
https://github.com/bitcoin/bitcoin/pull/18600.

Unlike that PR, which implements some new behavior, this just restores previous
wallet notification and status behavior for transactions removed from the
mempool because they conflict with transactions in a block. The behavior was
accidentally changed in two `CWallet::BlockConnected` updates:
a31be09bfd and
7e89994133 from
https://github.com/bitcoin/bitcoin/pull/16624, causing issue
https://github.com/bitcoin/bitcoin/issues/18325.

The change here could be improved and replaced with a more comprehensive
cleanup, so it includes a detailed comment explaining future considerations.

Fixes #18325

Co-authored-by: Antoine Riard <ariard@student.42.fr>
2020-05-15 09:23:55 -04:00
Wladimir J. van der Laan
88b2652fad
Merge #18853: wallet: Fix typo in assert that is compile-time true
fa47cf9d95 wallet: Fix typo in assert that is compile-time true (MarcoFalke)

Pull request description:

  Commit 92bcd70808 presumably added a check that a `dest` of type `CNoDestination` implies an empty `scriptChange`.

  However, it accidentally checked for `boost::variant::empty`, which always returns false: https://www.boost.org/doc/libs/1_72_0/doc/html/boost/variant.html#id-1_3_46_5_4_1_1_16_2-bb

ACKs for top commit:
  Sjors:
    utACK fa47cf9d95

Tree-SHA512: 9626b1e2947039853703932a362c2ee204e002d3344856eb93eef0e0f833401336f2dfa80fd43b83c8ec6eac624e6302aee771fb67aec436ba6483be02b8d615
2020-05-06 14:19:41 +02:00
Samuel Dobson
60091d20f9
Merge #9381: Remove CWalletTx merging logic from AddToWallet
28b112e9bd Get rid of BindWallet (Russell Yanofsky)
d002f9d15d Disable CWalletTx copy constructor (Russell Yanofsky)
65b9d8f8dd Avoid copying CWalletTx in LoadToWallet (Russell Yanofsky)
bd2fbc7cdb Get rid of unneeded CWalletTx::Init parameter (Russell Yanofsky)
2b9cba2065 Remove CWalletTx merging logic from AddToWallet (Russell Yanofsky)

Pull request description:

  This is a pure refactoring, no behavior is changing.

  Instead of AddToWallet taking a temporary CWalletTx object and then potentially merging it with a pre-existing CWalletTx, have it take a callback so callers can update the pre-existing CWalletTx directly.

  This makes AddToWallet simpler because now it is only has to be concerned with saving CWalletTx objects and not merging them.

  This makes AddToWallet calls clearer because they can now make direct updates to CWalletTx entries without having to make temporary objects and then worry about how they will be merged.

  Motivation for this change came from the bumpfee PR #8456 where we wanted to be able to call AddToWallet to make a simple update to an existing transaction, but were reluctant to, because the existing CWalletTx merging logic did not apply and seemed dangerous try to update as part of that PR. After this refactoring, the bumpfee PR could call AddToWallet safely instead of implementing a duplicate AddToWallet function.

  This also allows getting rid of the CWalletTx copy constructor to prevent unintentional copying.

ACKs for top commit:
  MarcoFalke:
    Anyway, re-ACK 28b112e9bd

Tree-SHA512: 528dd088714472a237500b200f4433db850bdb7fc29c5e5d81cae48072061dfb967f7c37edd90b33f24901239f9be982988547c1f8c80abc25fb243fbf7330ef
2020-05-06 11:36:32 +12:00
Karl-Johan Alm
44cc75f80e
wallet: error if an explicit fee rate was given but the needed fee rate differed
This avoids cases where a user requests a fee rate below the minimum and is silently overruled by the wallet.
2020-05-05 14:09:20 +09:00
Andrew Chow
ca2a09640f Change SetType to SetInternal and remove m_address_type
m_address_type was used for two things:
1. Determine the type of descriptor to generate during
   SetupDescriptorGeneration
2. Sanity check during GetNewDestination.

There is no need to have this variable to accomplish those things.
1. Add a argument to SetupDescriptorGeneration indicating the address
   type to use
2. Use Descriptor::GetOutputType for the sanity check.
2020-05-05 00:24:46 -04:00
MarcoFalke
fa47cf9d95
wallet: Fix typo in assert that is compile-time true 2020-05-04 10:40:48 -04:00
MarcoFalke
fa2cce4391
wallet: Remove trailing whitespace from potential translation strings
If the potential translation strings are translated in the future,
trailing whitespace is going to make translation effort harder.
2020-05-01 07:41:32 -04:00
MarcoFalke
fae7776690
wallet: Avoid translating RPC errors when creating txs
Also, mark feebumper bilingual_str as Untranslated

They are technical and have previously not been translated either.
It is questionable whether they can even appear in the GUI.
2020-05-01 07:39:06 -04:00
MarcoFalke
fae51a5c6f
wallet: Avoid translating RPC errors when loading wallets
Common errors and warnings should be translated when displayed in the
GUI, but not translated when displayed elsewhere. The wallet method
CreateWalletFromFile does not know its caller, so this commit changes it
to return a bilingual_str to the caller.
2020-05-01 07:39:00 -04:00
Russell Yanofsky
28b112e9bd Get rid of BindWallet
CWalletTx initialization has been fixed so it's no longer necessary to change
which wallet a transaction is bound to.
2020-05-01 05:59:09 -05:00
Russell Yanofsky
d002f9d15d Disable CWalletTx copy constructor
Disable copying of CWalletTx objects to prevent bugs where instances get copied
in and out of the mapWallet map and fields are updated in the wrong copy.
2020-05-01 05:59:09 -05:00
Russell Yanofsky
65b9d8f8dd Avoid copying CWalletTx in LoadToWallet
The change in walletdb.cpp is easier to review ignoring whitespace.

This change is need to get rid of CWalletTx copy constructor.
2020-05-01 05:59:09 -05:00
Russell Yanofsky
2b9cba2065 Remove CWalletTx merging logic from AddToWallet
Instead of AddToWallet taking a temporary CWalletTx object and then potentially
merging it with a pre-existing CWalletTx, have it take a callback so callers
can update the pre-existing CWalletTx directly.

This makes AddToWallet simpler because now it is only has to be concerned with
saving CWalletTx objects and not merging them.

This makes AddToWallet calls clearer because they can now make direct updates to
CWalletTx entries without having to make temporary objects and then worry about
how they will be merged.

This is a pure refactoring, no behavior is changing.
2020-05-01 05:59:09 -05:00
Antoine Riard
6a72f26968 [wallet] Remove locked_chain from CWallet, its RPCs and tests
This change is intended to make the bitcoin node and its rpc, network
and gui interfaces more responsive while the wallet is in use. Currently
because the node's cs_main mutex is always locked before the wallet's
cs_wallet mutex (to prevent deadlocks), cs_main currently stays locked
while the wallet does relatively slow things like creating and listing
transactions.

This commit only remmove chain lock tacking in wallet code, and invert
lock order from cs_main, cs_wallet to cs_wallet, cs_main.
must happen at once to avoid any deadlock. Previous commit were only
removing Chain::Lock methods to Chain interface and enforcing they
take cs_main.

Remove LockChain method from CWallet and Chain::Lock interface.
2020-04-30 14:41:24 -04:00
Antoine Riard
841178820d [wallet] Move methods from Chain::Lock interface to simple Chain
Remove findPruned and findFork, no more used after 17954.
2020-04-30 14:37:21 -04:00
Antoine Riard
0a76287387 [wallet] Move getBlockHash from Chain::Lock interface to simple Chain 2020-04-30 14:37:21 -04:00
Antoine Riard
de13363a47 [wallet] Move getBlockHeight from Chain::Lock interface to simple Chain
Add HaveChain to assert chain access for wallet-tool in LoadToWallet.
2020-04-30 14:37:21 -04:00
Antoine Riard
b855592d83 [wallet] Move getHeight from Chain::Lock interface to simple Chain
Instead of calling getHeight, we rely on CWallet::m_last_block
processed_height where it's possible.
2020-04-30 14:31:19 -04:00
fanquake
0ef0d33f75
Merge #18038: P2P: Mempool tracks locally submitted transactions to improve wallet privacy
50fc4df6c4 [mempool] Persist unbroadcast set to mempool.dat (Amiti Uttarwar)
297a178536 [test] Integration tests for unbroadcast functionality (Amiti Uttarwar)
6851502472 [refactor/test] Extract P2PTxInvStore into test framework (Amiti Uttarwar)
dc1da48dc5 [wallet] Update the rebroadcast frequency to be ~1/day. (Amiti Uttarwar)
e25e42f20a [p2p] Reattempt initial send of unbroadcast transactions (Amiti Uttarwar)
7e93eecce3 [util] Add method that returns random time in milliseconds (Amiti Uttarwar)
89eeb4a333 [mempool] Track "unbroadcast" transactions (Amiti Uttarwar)

Pull request description:

  This PR introduces mempool tracking of unbroadcast transactions and periodic reattempts at initial broadcast. This is a part of the rebroadcast project, and a standalone privacy win.

  The current rebroadcast logic is terrible for privacy because 1. only the source wallet rebroadcasts transactions and 2. it does so quite frequently. In the current system, if a user submits a transaction that does not immediately get broadcast to the network (eg. they are offline), this "rebroadcast" behavior is the safety net that can actually serve as the initial broadcast. So, keeping the attempts frequent is important for initial delivery within a reasonable timespan.

  This PR aims to improve # 2 by reducing the wallet rebroadcast frequency to ~1/day from ~1/15 min. It achieves this by separating the notion of initial broadcast from rebroadcasts. With these changes, the mempool tracks locally submitted transactions & periodically reattempts initial broadcast. Transactions submitted via the wallet or RPC are added to an "unbroadcast" set & are removed when a peer sends a `getdata` request, or the transaction is removed from the mempool. Every 10-15 minutes, the node reattempts an initial broadcast. This enables reducing the wallet rebroadcast frequency while ensuring the transactions will be propagated to the network.

  For privacy improvements around # 1, please see #16698.
  Thank you to gmaxwell for the idea of how to break out this subset of functionality (https://github.com/bitcoin/bitcoin/pull/16698#issuecomment-571399346)

ACKs for top commit:
  fjahr:
    Code review ACK 50fc4df6c4
  MarcoFalke:
    ACK 50fc4df6c4, I think this is ready for merge now 👻
  amitiuttarwar:
    The current tip `50fc4df` currently has 6 ACKs on it, so I've opened #18807 to address the last bits.
  jnewbery:
    utACK 50fc4df6c4.
  ariard:
    Code Review ACK 50fc4df (minor points no need to invalid other ACKs)
  robot-visions:
    ACK 50fc4df6c4
  sipa:
    utACK 50fc4df6c4
  naumenkogs:
    utACK 50fc4df

Tree-SHA512: 2dd935d645d5e209f8abf87bfaa3ef0e4492705ce7e89ea64279cb27ffd37f4727fa94ad62d41be331177332f8edbebf3c7f4972f8cda10dd951b80a28ab3c0f
2020-04-29 16:32:37 +08:00
Amiti Uttarwar
dc1da48dc5 [wallet] Update the rebroadcast frequency to be ~1/day.
Since the mempool unbroadcast mechanism handles the reattempts for initial
broadcast, the wallet rebroadcast attempts can be much less frequent
(previously ~1/30 min)
2020-04-23 14:42:25 -07:00
Andrew Chow
886e0d75f5 Implement CWallet::IsSpentKey for non-LegacySPKMans 2020-04-23 13:59:48 -04:00
Andrew Chow
3c19fdd2a2 Return error when no ScriptPubKeyMan is available for specified type
When a CWallet doesn't have a ScriptPubKeyMan for the requested type
in GetNewDestination, give a meaningful error. Also handle this in
Qt which did not do anything with errors.
2020-04-23 13:59:48 -04:00
Hugo Nguyen
f193ea889d add importdescriptors RPC and tests for native descriptor wallets
Co-authored-by: Andrew Chow <achow101-github@achow101.com>
2020-04-23 13:59:48 -04:00
Andrew Chow
ce24a94494 Add IsLegacy to CWallet so that the GUI knows whether to show watchonly 2020-04-23 13:59:48 -04:00
Andrew Chow
1cb42b22b1 Generate new descriptors when encrypting 2020-04-23 13:59:48 -04:00
Andrew Chow
82ae02b165 Be able to create new wallets with DescriptorScriptPubKeyMans as backing 2020-04-23 13:59:48 -04:00
Andrew Chow
72a9540df9 Implement FillPSBT in DescriptorScriptPubKeyMan
FillPSBT will add our own scripts to the PSBT if those inputs are ours.
If an input also lists pubkeys that we happen to know the private keys
for, we will sign those inputs too.
2020-04-23 13:59:48 -04:00
Andrew Chow
bde7c9fa38 Implement SignTransaction in DescriptorScriptPubKeyMan 2020-04-23 13:59:48 -04:00
Andrew Chow
ec2f9e1178 Implement IsHDEnabled in DescriptorScriptPubKeyMan 2020-04-23 13:59:48 -04:00
Andrew Chow
db7177af8c Add LoadDescriptorScriptPubKeyMan and SetActiveScriptPubKeyMan to CWallet 2020-04-23 13:59:42 -04:00
Andrew Chow
6b13cd3fa8 Create LegacyScriptPubKeyMan when not a descriptor wallet 2020-04-23 13:25:50 -04:00
Andrew Chow
aeac157c9d Return nullptr from GetLegacyScriptPubKeyMan if descriptor wallet 2020-04-23 13:25:50 -04:00
João Barbosa
fc289b7898 wallet: Refactor WalletRescanReserver to use wallet reference 2020-04-19 14:04:37 +01:00
MarcoFalke
b470c75847
Merge #15761: Replace -upgradewallet startup option with upgradewallet RPC
0d32d66148 Remove -upgradewallet startup option (Andrew Chow)
92263cce5b Add upgradewallet RPC (Andrew Chow)
1e48796c99 Make UpgradeWallet a member function of CWallet (Andrew Chow)
c988f27937 Have UpgradeWallet take the version to upgrade to and an error message out parameter (Andrew Chow)
1833237123 Only run UpgradeWallet if the wallet needs to be upgraded (Andrew Chow)
9c16b1735f Move wallet upgrading to its own function (Andrew Chow)

Pull request description:

  `-upgradewallet` is largely incompatible with many recent wallet features and versions. For example, it was disabled if multiple wallets were used and would not work with encrypted wallets that were being upgraded to HD.

  This PR does away with the old method of upgrading upon startup and instead allows users to upgrade their wallets via an `upgradewallet` RPC. This does largely the same thing as the old `-upgradewallet` option but because the wallet is loaded, it can be unlocked to upgrade to HD. Furthermore it is compatible with multiwallet as it works on the individual wallet that is specified by the RPC.

ACKs for top commit:
  meshcollider:
    Code review ACK 0d32d66148
  darosior:
    ACK 0d32d66148
  MarcoFalke:
    ACK 0d32d66148 🚵

Tree-SHA512: b425bf6f5d605e26506889d63c780895482f07cbc086193218e031e8504d3072d41e90d65cd41bcc98ee4c1eb048954bc5d4ac85435f7394892373aac89a3b0a
2020-04-19 07:06:42 -04:00
Samuel Dobson
bbb1ba1814
Merge #17219: wallet: allow transaction without change if keypool is empty
92bcd70808 [wallet] allow transaction without change if keypool is empty (Sjors Provoost)
709f8685ac [wallet] CreateTransaction: simplify change address check (Sjors Provoost)
5efc25f963 [wallet] translate "Keypool ran out" message (Sjors Provoost)

Pull request description:

  Extracted from #16944

  First this PR simplifies the check when generating a change address, by dropping `CanGetAddresses` and just letting `reservedest.GetReservedDestination` do this check.

  Second, when the keypool is empty, instead of immediately giving up, we create a dummy change address and pass that to coin selection. If we didn't need the change address (e.g. when spending the entire balance), then it's all good. If we did need a change address, we throw the original error.

ACKs for top commit:
  fjahr:
    Code review ACK 92bcd70808
  jonasschnelli:
    utACK 92bcd70808
  achow101:
    ACK 92bcd70808
  meshcollider:
    Code review ACK 92bcd70808

Tree-SHA512: 07b8c8251f57061c58a85ebf0359be63583c23bac7a2c4cefdc14820c0cdebcc90a2bb218e5ede0db11d1e204cda149e056dfd18614642070b3d56efe2735006
2020-04-18 22:00:26 +12:00
Fabian Jahr
1abbdac677
wallet: Prefer full destination groups in coin selection
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.
2020-04-14 15:02:06 +02:00
MarcoFalke
4702cadca9
Merge #17954: wallet: Remove calls to Chain::Lock methods
48973402d8 wallet: Avoid use of Chain::Lock in CWallet::GetKeyBirthTimes (Russell Yanofsky)
e958ff9ab5 wallet: Avoid use of Chain::Lock in CWallet::CreateTransaction (Russell Yanofsky)
c0d07dc4cb wallet: Avoid use of Chain::Lock in CWallet::ScanForWalletTransactions (Russell Yanofsky)
1be8ff280c wallet: Avoid use of Chain::Lock in rescanblockchain (Russell Yanofsky)
3cb85ac594 wallet refactor: Avoid use of Chain::Lock in CWallet::RescanFromTime (Russell Yanofsky)
f7ba881bc6 wallet: Avoid use of Chain::Lock in listsinceblock (Russell Yanofsky)
bc96a9bfc6 wallet: Avoid use of Chain::Lock in importmulti (Russell Yanofsky)
25a9fcf9e5 wallet: Avoid use of Chain::Lock in importwallet and dumpwallet (Russell Yanofsky)
c1694ce6bb wallet: Avoid use of Chain::Lock in importprunedfunds (Russell Yanofsky)
ade5f87971 wallet refactor: Avoid use of Chain::Lock in qt wallettests (Russell Yanofsky)
f6da44ccce wallet: Avoid use of Chain::Lock in tryGetTxStatus and tryGetBalances (Russell Yanofsky)
bf30cd4922 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 48973402d8, 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
2020-04-14 07:18:12 -04:00
Andrew Chow
0d32d66148 Remove -upgradewallet startup option 2020-04-13 13:28:04 -04:00