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2018-04-07scripted-diff: Rename wallet database classesRussell Yanofsky
-BEGIN VERIFY SCRIPT- sed -i 's/\<CWalletDBWrapper\>/BerkeleyDatabase/g' src/wallet/db.h src/wallet/db.cpp sed -i '/statuses/i/** Backend-agnostic database type. */\nusing WalletDatabase = BerkeleyDatabase\;\n' src/wallet/walletdb.h ren() { git grep -l "\<$1\>" 'src/*.cpp' 'src/*.h' ':(exclude)*dbwrapper*' test | xargs sed -i "s:\<$1\>:$2:g"; } ren CDBEnv BerkeleyEnvironment ren CDB BerkeleyBatch ren CWalletDBWrapper WalletDatabase ren CWalletDB WalletBatch ren dbw database ren m_dbw m_database ren walletdb batch ren pwalletdb batch ren pwalletdbIn batch_in ren wallet/batch.h wallet/walletdb.h ren pwalletdbEncryption encrypted_batch -END VERIFY SCRIPT-
2018-04-07Merge #12785: wallet: Initialize m_last_block_processed to nullptrWladimir J. van der Laan
f63bc5e wallet: Initialize m_last_block_processed to nullptr. Initialize fields where defined. (practicalswift) Pull request description: Initialize `m_last_block_processed` to `nullptr`. `m_last_block_processed` was introduced in 5ee31726360cbe343f5a1a50a5e440db736da5b7. Tree-SHA512: 6e4a807e5b02115cbd80460761056f2eb22043203212d88dd0cd44c28dc0abce30ab29b078ca2c612232e76af4886f4fdbf2b0ff75e2df19b4d1a801b236cc13
2018-04-05wallet: Initialize m_last_block_processed to nullptr. Initialize fields ↵practicalswift
where defined.
2018-04-05Merge #12859: Bugfix: Include <memory> for std::unique_ptrWladimir J. van der Laan
a5bca13 Bugfix: Include <memory> for std::unique_ptr (Luke Dashjr) Pull request description: Not sure why all these includes were missing, but it's breaking builds for some users: https://bugs.gentoo.org/show_bug.cgi?id=652142 (Added to all files with a reference to `std::unique_ptr`) Tree-SHA512: 8a2c67513ca07b9bb52c34e8a20b15e56f8af2530310d9ee9b0a69694dd05e02e7a3683f14101a2685d457672b56addec591a0bb83900a0eb8e2a43d43200509
2018-04-02Bugfix: Include <memory> for std::unique_ptrLuke Dashjr
2018-03-22Merge #11536: Rename account to label where appropriateWladimir J. van der Laan
d2527bd Rename wallet_accounts.py test (Russell Yanofsky) 045eeb8 Rename account to label where appropriate (Russell Yanofsky) Pull request description: Rename account to label where appropriate This change only updates strings and adds RPC aliases, but should simplify the implementation of address labels in https://github.com/bitcoin/bitcoin/pull/7729, by getting renaming out of the way and letting that change focus on semantics. The difference between accounts and labels is that labels apply only to addresses, while accounts apply to both addresses and transactions (transactions have "from" and "to" accounts). The code associating accounts with transactions is clumsy and unreliable so we would like get rid of it. --- There is a rebased version of #7729 atop this PR at https://github.com/ryanofsky/bitcoin/commits/pr/label, see https://github.com/bitcoin/bitcoin/pull/7729#issuecomment-338417139. Tree-SHA512: b3f934e612922d6290f50137f8ba71ddfaea4485713c7d97e89400a8b73b09b254f9186dffa462c77f5847721f5af9852b5572ade5443d8ee95dd150b3edb7ff
2018-03-22Merge #12694: Actually disable BnB when there are preset inputsWladimir J. van der Laan
081bf54 Test that BnB is not used when there are preset inputs (Andrew Chow) 6ef9982 Actually disable BnB when there are preset inputs (Andrew Chow) Pull request description: We don't want to use BnB when there are preset inputs because there is some weirdness with making that work with using the KnapsackSolver as the fallback. Currently we say that we haven't used bnb when there are preset inputs, but we don't actually disable BnB. This fixes that. I thought this was done originally. I guess it got lost in a rebase somewhere. Tree-SHA512: 9792c0cdd0736866bddbed20f10b8050104955dc589fba49a0bd61a582ba491c921af2cdcc2269678b7b69275dad5fcf89c71b75c28733c7bacbe52e55891b9c
2018-03-21Fix typospracticalswift
2018-03-19Rename account to label where appropriateRussell Yanofsky
This change only updates strings and adds RPC aliases, but should simplify the implementation of address labels in https://github.com/bitcoin/bitcoin/pull/7729, by getting renaming out of the way and letting it focus on semantics. The difference between accounts and labels is that labels apply only to addresses, while accounts apply to both addresses and transactions (transactions have "from" and "to" accounts). The code associating accounts with transactions is clumsy and unreliable so we would like get rid of it.
2018-03-17wallet: Change output type globals to membersMarcoFalke
2018-03-15Test that BnB is not used when there are preset inputsAndrew Chow
2018-03-15Actually disable BnB when there are preset inputsAndrew Chow
We don't want to use BnB when there are preset inputs because there is some weirdness with making that work with using the KnapsackSolver as the fallback. Currently we say that we haven't used bnb when there are preset inputs, but we don't actually disable BnB. This fixes that.
2018-03-14Merge #10637: Coin Selection with Murch's algorithmWladimir J. van der Laan
73b5bf2cb Add a test to make sure that negative effective values are filtered (Andrew Chow) 76d2f068a Benchmark BnB in the worst case where it exhausts (Andrew Chow) 6a34ff533 Have SelectCoinsMinConf and SelectCoins use BnB or Knapsack and use it (Andrew Chow) fab04887c Add a GetMinimumFeeRate function which is wrapped by GetMinimumFee (Andrew Chow) cd927ff32 Move original knapsack solver tests to coinselector_tests.cpp (Andrew Chow) fb716f7b2 Move current coin selection algorithm to coinselection.{cpp,h} (Andrew Chow) 4566ab75f Add tests for the Branch and Bound algorithm (Andrew Chow) 4b2716da4 Remove coinselection.h -> wallet.h circular dependency (Andrew Chow) 7d77eb1a5 Use a struct for output eligibility (Andrew Chow) ce7435cf1 Move output eligibility to a separate function (Andrew Chow) 0185939be Implement Branch and Bound coin selection in a new file (Andrew Chow) f84fed8eb Store effective value, fee, and long term fee in CInputCoin (Andrew Chow) 12ec29d3b Calculate and store the number of bytes required to spend an input (Andrew Chow) Pull request description: This is an implementation of the [Branch and Bound coin selection algorithm written by Murch](http://murch.one/wp-content/uploads/2016/11/erhardt2016coinselection.pdf) (@xekyo). I have it set so this algorithm will run first and if it fails, it will fall back to the current coin selection algorithm. The coin selection algorithms and tests have been refactored to separate files instead of having them all in wallet.cpp. I have added some tests for the new algorithm and a test for all of coin selection in general. However, more tests may be needed, but I will need help with coming up with more test cases. This PR uses some code borrowed from #10360 to use effective values when selecting coins. Tree-SHA512: b0500f406bf671e74984fae78e2d0fbc5e321ddf4f06182c5855e9d1984c4ef2764c7586d03e16fa4b578c340b21710324926f9ca472d5447a0d1ed43eb4357e
2018-03-13Merge #9680: Unify CWalletTx constructionPieter Wuille
b4bc32a451 [wallet] Get rid of CWalletTx default constructor (Russell Yanofsky) a128bdc9e1 [wallet] Construct CWalletTx objects in CommitTransaction (Russell Yanofsky) Pull request description: Two commits: - `Construct CWalletTx objects in CommitTransaction` moves a bunch of CWalletTx initialization into CWallet::CommitTransaction to dedup some code and avoid future inconsistencies in how wallet transactions are created. - `Get rid of CWalletTx default constructor` does what is described and eliminates the possibility of empty transaction entries being inadvertently created by mapWallet[hash] accesses. Both of these changes were originally part of #9381 Tree-SHA512: af3841c4f0539e0662d81b33c5369fc70aa06ddde1c59cb00fb21c9e4c7d9ff47f1edc5040cb463af1333838802c56b3ef875b939e2b804ee45b8e0294a4371c
2018-03-13Have SelectCoinsMinConf and SelectCoins use BnB or Knapsack and use itAndrew Chow
Allows SelectCoinsMinConf and SelectCoins be able to switch between using BnB or Knapsack for choosing coins. Has SelectCoinsMinConf do the preprocessing necessary to support either BnB or Knapsack. This includes calculating the filtering the effective values for each input. Uses BnB in CreateTransaction to find an exact match for the output. If BnB fails, it will fallback to the Knapsack solver.
2018-03-13Remove coinselection.h -> wallet.h circular dependencyAndrew Chow
Changes CInputCoin to coinselection and to use CTransactionRef in order to avoid a circular dependency. Also moves other coin selection specific variables out of wallet.h to coinselectoin.h
2018-03-13Use a struct for output eligibilityAndrew Chow
Instead of specifying 3 parameters, use a struct for those parameters in order to reduce the number of arguments to SelectCoinsMinConf.
2018-03-13Move output eligibility to a separate functionAndrew Chow
2018-03-13Implement Branch and Bound coin selection in a new fileAndrew Chow
Create a new file for coin selection logic and implement the BnB algorithm in it.
2018-03-11Split up and sanitize CAccountingEntry serializationPieter Wuille
2018-03-09Store effective value, fee, and long term fee in CInputCoinAndrew Chow
Have CInputCOin store effective value information. This includes the effective value itself, the fee, and the long term fee for the input
2018-03-09Calculate and store the number of bytes required to spend an inputAndrew Chow
2018-03-09Split up and sanitize CWalletTx serializationPieter Wuille
2018-03-07[wallet] Get rid of CWalletTx default constructorRussell Yanofsky
No change in behavior in the normal case. But buggy mapWallet lookups with invalid txids will now throw exceptions instead of inserting dummy entries into the map, and potentially causing segfaults and other failures. This also makes it a compiler error to use the mapWallet[hash] syntax which could create dummy entries.
2018-03-07[wallet] Construct CWalletTx objects in CommitTransactionRussell Yanofsky
Construct CWalletTx objects in CWallet::CommitTransaction, instead of having callers do it. This ensures CWalletTx objects are constructed in a uniform way and all fields are set. This also makes it possible to avoid confusing and wasteful CWalletTx copies in https://github.com/bitcoin/bitcoin/pull/9381 There is no change in behavior.
2018-03-03Create new wallet databases as directories rather than filesRussell Yanofsky
This change should make it easier for users to make complete backups of wallets because they can now just back up the specified `-wallet=<path>` path directly, instead of having to back up the specified path as well as the transaction log directory (for incompletely flushed wallets). Another advantage of this change is that if two wallets are located in the same directory, they will now use their own BerkeleyDB environments instead using a shared environment. Using a shared environment makes it difficult to manage and back up wallets separately because transaction log files will contain a mix of data from all wallets in the environment.
2018-03-03Allow wallet files in multiple directoriesRussell Yanofsky
Remove requirement that two wallet files can only be opened at the same time if they are contained in the same directory. This change mostly consists of updates to function signatures (updating functions to take fs::path arguments, instead of combinations of strings, fs::path, and CDBEnv / CWalletDBWrapper arguments).
2018-03-02Fix ListCoins test failure due to unset g_wallet_allow_fallback_feeRussell Yanofsky
New global variables were introduced in #11882 and not setting them causes: wallet/test/wallet_tests.cpp(638): error in "ListCoins": check wallet->CreateTransaction({recipient}, wtx, reservekey, fee, changePos, error, dummy) failed wallet/test/wallet_tests.cpp(679): error in "ListCoins": check list.begin()->second.size() == 2 failed [1 != 2] wallet/test/wallet_tests.cpp(686): error in "ListCoins": check available.size() == 2 failed [1 != 2] wallet/test/wallet_tests.cpp(705): error in "ListCoins": check list.begin()->second.size() == 2 failed [1 != 2] It's possible to reproduce the failure reliably by running: src/test/test_bitcoin --log_level=test_suite --run_test=wallet_tests/ListCoins Failures happen nondeterministically because boost test framework doesn't run tests in a specified order, and tests that run previously can set the global variables and mask the bug.
2018-02-25Disable wallet fallbackfee by default on mainnetJonas Schnelli
2018-02-07Merge #10498: Use static_cast instead of C-style casts for non-fundamental typesMarcoFalke
9ad6746ccd Use static_cast instead of C-style casts for non-fundamental types (practicalswift) Pull request description: A C-style cast is equivalent to try casting in the following order: 1. `const_cast(...)` 2. `static_cast(...)` 3. `const_cast(static_cast(...))` 4. `reinterpret_cast(...)` 5. `const_cast(reinterpret_cast(...))` By using `static_cast<T>(...)` explicitly we avoid the possibility of an unintentional and dangerous `reinterpret_cast`. Furthermore `static_cast<T>(...)` allows for easier grepping of casts. For a more thorough discussion, see ["ES.49: If you must use a cast, use a named cast"](https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#es49-if-you-must-use-a-cast-use-a-named-cast) in the C++ Core Guidelines (Stroustrup & Sutter). Tree-SHA512: bd6349b7ea157da93a47b8cf238932af5dff84731374ccfd69b9f732fabdad1f9b1cdfca67497040f14eaa85346391404f4c0495e22c467f26ca883cd2de4d3c
2018-01-24[wallet] Add change type to CCoinControlJoão Barbosa
2018-01-24Merge #12119: [wallet] use P2WPKH change output if any destination is P2WPKH ↵Wladimir J. van der Laan
or P2WSH 596c446 [wallet] use P2WPKH change output if any destination is P2WPKH or P2WSH (Sjors Provoost) Pull request description: If `-changetype` is not explicitly set, then regardless of `-addresstype`, the wallet will use a ~`bech32` change address~ `P2WPKH` change output if any destination is `P2WPKH` or `P2WSH`. This seems more intuitive to me and more in line with the spirit of [BIP-69](https://github.com/bitcoin/bips/blob/master/bip-0069.mediawiki). When combined with #11991 a QT user could opt to use `bech32` exclusively without having to figure out how to launch with `-changetype=bech32`, although so would #11937. Tree-SHA512: 9238d3ccd1f3be8dfdd43444ccf45d6bdc6584ced3172a3045f3ecfec4a7cc8999db0cdb76ae49236492a84e6dbf3a1fdf18544d3eaf6d518e1f8bd241db33e7
2018-01-24Merge #11281: Avoid permanent cs_main/cs_wallet lock during RescanFromTimeWladimir J. van der Laan
7f81250 Mention that other RPC calls report keys as "imported" while txns are still missing (Jonas Schnelli) ccd8ef6 Reduce cs_main lock in ReadBlockFromDisk, only read GetBlockPos under the lock (Jonas Schnelli) bc356b4 Make sure WalletRescanReserver has successfully reserved the rescan (Jonas Schnelli) dbf8556 Add RAII wallet rescan reserver (Jonas Schnelli) 8d0b610 Avoid pemanent cs_main/cs_wallet lock during wallet rescans (Jonas Schnelli) Pull request description: Right now, we are holding `cs_main`/`cs_wallet` during the whole rescan process (which can take a couple of hours). This was probably only done because of laziness and it is an important show-stopper for #11200 (GUI rescan abort). Tree-SHA512: 0fc3f82d0ee9b2f013e6bacba8d59f7334306660cd676cd64c47bb305c4cb7c7a36219d6a6f76023b74e5fe87f3ab9fc7fd2439e939f71aef653fddb0a1e23b1
2018-01-23Make sure WalletRescanReserver has successfully reserved the rescanJonas Schnelli
2018-01-23Add RAII wallet rescan reserverJonas Schnelli
2018-01-23[wallet] use P2WPKH change output if any destination is P2WPKH or P2WSHSjors Provoost
Only if -changetype is not set and -addresstype is not "legacy".
2018-01-16[qt] receive tab: bech32 address opt-in checkboxSjors Provoost
When launched with -adresstype=legacy the checkbox will be hidden.
2018-01-10Merge #11403: SegWit wallet supportJonas Schnelli
b224a47a1 Add address_types test (Pieter Wuille) 7ee54fd7c Support downgrading after recovered keypool witness keys (Pieter Wuille) 940a21932 SegWit wallet support (Pieter Wuille) f37c64e47 Implicitly know about P2WPKH redeemscripts (Pieter Wuille) 57273f2b3 [test] Serialize CTransaction with witness by default (Pieter Wuille) cf2c0b6f5 Support P2WPKH and P2SH-P2WPKH in dumpprivkey (Pieter Wuille) 37c03d3e0 Support P2WPKH addresses in create/addmultisig (Pieter Wuille) 3eaa003c8 Extend validateaddress information for P2SH-embedded witness (Pieter Wuille) 30a27dc5b Expose method to find key for a single-key destination (Pieter Wuille) 985c79552 Improve witness destination types and use them more (Pieter Wuille) cbe197470 [refactor] GetAccount{PubKey,Address} -> GetAccountDestination (Pieter Wuille) 0c8ea6380 Abstract out IsSolvable from Witnessifier (Pieter Wuille) Pull request description: This implements a minimum viable implementation of SegWit wallet support, based on top of #11389, and includes part of the functionality from #11089. Two new configuration options are added: * `-addresstype`, with options `legacy`, `p2sh`, and `bech32`. It controls what kind of addresses are produced by `getnewaddress`, `getaccountaddress`, and `createmultisigaddress`. * `-changetype`, with the same options, and by default equal to `-addresstype`, that controls what kind of change is used. All wallet private and public keys can be used for any type of address. Support for address types dependent on different derivation paths will need a major overhaul of how our internal detection of outputs work. I expect that that will happen for a next major version. The above also applies to imported keys, as having a distinction there but not for normal operations is a disaster for testing, and probably for comprehension of users. This has some ugly effects, like needing to associate the provided label to `importprivkey` with each style address for the corresponding key. To deal with witness outputs requiring a corresponding redeemscript in wallet, three approaches are used: * All SegWit addresses created through `getnewaddress` or multisig RPCs explicitly get their redeemscripts added to the wallet file. This means that downgrading after creating a witness address will work, as long as the wallet file is up to date. * All SegWit keys in the wallet get an _implicit_ redeemscript added, without it being written to the file. This means recovery of an old backup will work, as long as you use new software. * All keypool keys that are seen used in transactions explicitly get their redeemscripts added to the wallet files. This means that downgrading after recovering from a backup that includes a witness address will work. These approaches correspond to solutions 3a, 1a, and 5a respectively from https://gist.github.com/sipa/125cfa1615946d0c3f3eec2ad7f250a2. As argued there, there is no full solution for dealing with the case where you both downgrade and restore a backup, so that's also not implemented. `dumpwallet`, `importwallet`, `importmulti`, `signmessage` and `verifymessage` don't work with SegWit addresses yet. They're remaining TODOs, for this PR or a follow-up. Because of that, several tests unexpectedly run with `-addresstype=legacy` for now. Tree-SHA512: d425dbe517c0422061ab8dacdc3a6ae47da071450932ed992c79559d922dff7b2574a31a8c94feccd3761c1dffb6422c50055e6dca8e3cf94a169bc95e39e959
2018-01-09SegWit wallet supportPieter Wuille
This introduces two command line flags (-addresstype and -changetype) which control the type of addresses/outputs created by the GUI and RPCs. Certain RPCs allow overriding these (`getnewaddress` and `getrawchangeaddress`). Supported types are "legacy" (P2PKH and P2SH-multisig), "p2sh-segwit" (P2SH-P2WPKH and P2SH-P2WSH-multisig), and "bech32" (P2WPKH and P2WSH-multisig). A few utility functions are added to the wallet to construct different address type and to add the necessary entries to the wallet file to be compatible with earlier versions (see `CWallet::LearnRelatedScripts`, `GetDestinationForKey`, `GetAllDestinationsForKey`, `CWallet::AddAndGetDestinationForScript`).
2018-01-03[refactor] GetAccount{PubKey,Address} -> GetAccountDestinationPieter Wuille
2018-01-03Increment MIT Licence copyright header year on files modified in 2017Akira Takizawa
2017-12-14Merge #10839: Don't use pass by reference to const for cheaply-copied types ↵Wladimir J. van der Laan
(bool, char, etc.) 99ba0c3 Don't use pass by reference to const for cheaply-copied types (bool, char, etc.). (practicalswift) Pull request description: Don't use pass by reference to const for cheaply-copied types (`bool`, `char`, etc.). Tree-SHA512: ccad5e2695dff0b3d6de3e713ff3448f2981168cdac72d73bee10ad346b9919d8d4d588933369e54657a244b8b222fa0bef919bc56d983e1fa64b2004e51b225
2017-12-08Split up key and script metadata for better type safetyRussell Yanofsky
Suggested by Matt Corallo <git@bluematt.me> https://github.com/bitcoin/bitcoin/pull/11403#discussion_r155599383 Combining the maps was probably never a good arrangement but is more problematic now in presence of WitnessV0ScriptHash and WitnessV0KeyHash types.
2017-11-16scripted-diff: Replace #include "" with #include <> (ryanofsky)MeshCollider
-BEGIN VERIFY SCRIPT- for f in \ src/*.cpp \ src/*.h \ src/bench/*.cpp \ src/bench/*.h \ src/compat/*.cpp \ src/compat/*.h \ src/consensus/*.cpp \ src/consensus/*.h \ src/crypto/*.cpp \ src/crypto/*.h \ src/crypto/ctaes/*.h \ src/policy/*.cpp \ src/policy/*.h \ src/primitives/*.cpp \ src/primitives/*.h \ src/qt/*.cpp \ src/qt/*.h \ src/qt/test/*.cpp \ src/qt/test/*.h \ src/rpc/*.cpp \ src/rpc/*.h \ src/script/*.cpp \ src/script/*.h \ src/support/*.cpp \ src/support/*.h \ src/support/allocators/*.h \ src/test/*.cpp \ src/test/*.h \ src/wallet/*.cpp \ src/wallet/*.h \ src/wallet/test/*.cpp \ src/wallet/test/*.h \ src/zmq/*.cpp \ src/zmq/*.h do base=${f%/*}/ relbase=${base#src/} sed -i "s:#include \"\(.*\)\"\(.*\):if test -e \$base'\\1'; then echo \"#include <\"\$relbase\"\\1>\\2\"; else echo \"#include <\\1>\\2\"; fi:e" $f done -END VERIFY SCRIPT-
2017-11-15Merge #10286: Call wallet notify callbacks in scheduler thread (without cs_main)Wladimir J. van der Laan
89f0312 Remove redundant pwallet nullptr check (Matt Corallo) c4784b5 Add a dev notes document describing the new wallet RPC blocking (Matt Corallo) 3ea8b75 Give ZMQ consistent order with UpdatedBlockTip on scheduler thread (Matt Corallo) cb06edf Fix wallet RPC race by waiting for callbacks in sendrawtransaction (Matt Corallo) e545ded Also call other wallet notify callbacks in scheduler thread (Matt Corallo) 17220d6 Use callbacks to cache whether wallet transactions are in mempool (Matt Corallo) 5d67a78 Add calls to CWallet::BlockUntilSyncedToCurrentChain() in RPCs (Matt Corallo) 5ee3172 Add CWallet::BlockUntilSyncedToCurrentChain() (Matt Corallo) 0b2f42d Add CallFunctionInQueue to wait on validation interface queue drain (Matt Corallo) 2b4b345 Add ability to assert a lock is not held in DEBUG_LOCKORDER (Matt Corallo) 0343676 Call TransactionRemovedFromMempool in the CScheduler thread (Matt Corallo) a7d3936 Add a CValidationInterface::TransactionRemovedFromMempool (Matt Corallo) Pull request description: Based on #10179, this effectively reverts #9583, regaining most of the original speedups of #7946. This concludes the work of #9725, #10178, and #10179. See individual commit messages for more information. Tree-SHA512: eead4809b0a75d1fb33b0765174ff52c972e45040635e38cf3686cef310859c1e6b3c00e7186cbd17374c6ae547bfbd6c1718fe36f26c76ba8a8b052d6ed7bc9
2017-11-09Merge #10368: [wallet] Remove helper conversion operator from walletWladimir J. van der Laan
5a5e4e9 [wallet] Remove CTransaction&() helper conversion operator from wallet implementation. (Karl-Johan Alm) Pull request description: The `CTransaction&()` operator in `CMerkleTx` makes conversion into `CTransaction`s transparent, but was marked as to-be-removed in favor of explicitly getting the `tx` ivar, presumably as the operator can lead to ambiguous behavior and makes the code harder to follow. This PR removes the operator and adapts callers. This includes some cases of `static_cast<CTransaction>(wtx)` → `*wtx.tx`, which is definitely an improvement. Tree-SHA512: 95856fec7194d6a79615ea1c322abfcd6bcedf6ffd0cfa89bbdd332ce13035fa52dd4b828d20df673072dde1be64b79c513529a6f422dd5f0961ce722a32d56a
2017-10-13Use callbacks to cache whether wallet transactions are in mempoolMatt Corallo
This avoid calling out to mempool state during coin selection, balance calculation, etc. In the next commit we ensure all wallet callbacks from CValidationInterface happen in the same queue, serialized with each other. This helps to avoid re-introducing one of the issues described in #9584 [1] by further disconnecting wallet from current chain/mempool state. Thanks to @morcos for the suggestion to do this. Note that there are several race conditions introduced here: * If a user calls sendrawtransaction from RPC, adding a transaction which is "trusted" (ie from them) and pays them change, it may not be immediately used by coin selection until the notification callbacks finish running. No such race is introduced in normal transaction-sending RPCs as this case is explicitly handled. * Until Block{Connected,Disconnected} and TransactionAddedToMempool calls also run in the CSceduler background thread, there is a race where TransactionAddedToMempool might be called after a Block{Connected,Disconnected} call happens. * Wallet will write a new best chain from the SetBestChain callback prior to having processed the transaction from that block. [1] "you could go to select coins, need to use 0-conf change, but such 0-conf change may have been included in a block who's callbacks have not yet been processed - resulting in thinking they are not in mempool and, thus, not selectable."
2017-10-13Add CWallet::BlockUntilSyncedToCurrentChain()Matt Corallo
This blocks until the wallet has synced up to the current height.
2017-10-13Merge #7061: [Wallet] Add RPC call "rescanblockchain <startheight> <stopheight>"Jonas Schnelli
7a91ceb5e [QA] Add RPC based rescan test (Jonas Schnelli) c77170fbd [Wallet] add rescanblockchain <start_height> <stop_height> RPC command (Jonas Schnelli) Pull request description: A RPC rescan command is much more flexible for the following reasons: * You can define the start and end-height * It can be called during runtime * It can work in multiwallet environment Tree-SHA512: df67177bad6ad1d08e5a621f095564524fa3eb87204c2048ef7265e77013e4b1b29f991708f807002329a507a254f35e79a4ed28a2d18d4b3da7a75d57ce0ea5
2017-10-12[Wallet] add rescanblockchain <start_height> <stop_height> RPC commandJonas Schnelli