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2020-07-14Merge #19325: wallet: Refactor BerkeleyDatabase to introduce DatabaseBatch ↵MarcoFalke
abstract class b82f0ca4d5465b36debb6c57f335bdccf4899c49 walletdb: Add MakeBatch function to BerkeleyDatabase and use it (Andrew Chow) eac9200814fa01da6522625be01dded730b26751 walletdb: Refactor DatabaseBatch abstract class from BerkeleyBatch (Andrew Chow) Pull request description: In order to support alternative database systems, we need to have a generic `Batch` class. This PR adds a `DatabaseBatch` abstract class which is implemented by `BerkeleyBatch`. `DatabaseBatch` is now the class that is used by `WalletBatch` to interact with the database. To be able to get the correct type of `DatabaseBatch`, `BerkeleyDatabase` now has a `MakeBatch` function which returns a newly constructed `std::unique_ptr<DatabaseBatch>`. For `BerkeleyDatabase`, that will be `std::unique_ptr<BerkeleyBatch>`. The `Read`, `Write`, `Erase`, and `Exists` template functions are moved from `BerkeleyBatch`. Part of #18971 Requires #19308 and #19324 ACKs for top commit: Sjors: re-utACK b82f0ca4d5465b36debb6c57f335bdccf4899c49 MarcoFalke: ACK b82f0ca4d5465b36debb6c57f335bdccf4899c49 🌘 meshcollider: LGTM, utACK b82f0ca4d5465b36debb6c57f335bdccf4899c49 Tree-SHA512: 6d2d41631c0983391dbecd702e881c6775b155c90b275df97f7157e42608ed251744f9d7ce5173d02a6c5cc38d90b611880fac7fa635d3d8c4d590681f56ac6a
2020-07-13walletdb: Don't remove database transaction logs and instead errorAndrew Chow
Instead of removing the database transaction logs and retrying the wallet loading, just return an error message to the user. Additionally, specifically for DB_RUNRECOVERY, notify the user that this could be due to different BDB versions. This error is pretty much only caused by compiling with a newer version of BDB and then trying to open the wallet with a version compiled with an older version of BDB.
2020-07-11wallet: Fix typo in comments; Simplify assertMarcoFalke
2020-07-09walletdb: Add MakeBatch function to BerkeleyDatabase and use itAndrew Chow
Instead of having WalletBatch construct the BerkeleyBatch, have BerkeleyDatabase do it and return a std::unique_ptr<BerkeleyBatch>
2020-07-09walletdb: Refactor DatabaseBatch abstract class from BerkeleyBatchAndrew Chow
2020-07-09Merge #19320: wallet: Replace CDataStream& with CDataStream&& where appropriateMarcoFalke
fa8a341b88cabfd7f8d702db7cb9972b0804bf2a wallet: Replace CDataStream& with CDataStream&& where appropriate (MarcoFalke) fa021e9a5b7e930a3db0febb416942dea3a90a8f wallet: Remove confusing double return value ret+success (MarcoFalke) Pull request description: The keys and values are only to be used once because their memory is set to zero. Make that explicit by moving the bytes into the lower level methods. ACKs for top commit: sipa: utACK fa8a341b88cabfd7f8d702db7cb9972b0804bf2a ryanofsky: Code review ACK fa8a341b88cabfd7f8d702db7cb9972b0804bf2a. Nice changes. Tree-SHA512: 5c0218bae0f3cd2a07346f1bbf4ad232e5dde7ef2f807d82cc6cfd208d11fe60c8b0f37e7986087b52fbfc79cdfd33c3c8a5822b3d4d9a44d1c6b09e354fc424
2020-07-05Merge #19324: wallet: Move BerkeleyBatch static functions to BerkeleyDatabaseMarcoFalke
d8e9ca66d119d80acfb2bb3c8940c386ce0fc226 walletdb: Move Rewrite into BerkeleyDatabase (Andrew Chow) 91d109156d63ff81cda534bd7bec8369af0027dd walletdb: Move PeriodicFlush into WalletDatabase (Andrew Chow) 8f1bcf8b7b6e47c05f2e43dd98ec3505b888d8b3 walletdb: Combine VerifyDatabaseFile and VerifyEnvironment (Andrew Chow) Pull request description: The `BerkeleyBatch` class has 4 static functions that operate on `BerkeleyDatabase` or `BerkeleyEnvironment`. It doesn't make sense for these to be standalone nor for them to be static functions. So instead, move them from `BerkeleyBatch` into `BerkeleyDatabase` and make them member functions instead of static. `BerkeleyBatch::VerifyEnvironment` and `BerkeleyBatch::VerifyDatabaseFile` are combined into a single `BerkeleyDatabase::Verify` function that operates on that `BerkeleyDatabase` object. `BerkeleyBatch::Rewrite` and `BerkeleyBatch::PeriodicFlush` both took a `BerkeleyDatabase` as an argument and did stuff on it. So we just make it a member function so it doesn't need to take a database as an argument. Part of #18971 ACKs for top commit: MarcoFalke: re-ACK d8e9ca66d1 only change is test fixup 🤞 promag: Code review ACK d8e9ca66d119d80acfb2bb3c8940c386ce0fc226, good stuff. Tree-SHA512: 9847e55b13d98bf4e5636cc14bc3f5351d56737f7e320fafffaed128606240765599e5400382c5aecac06690f7e36265ca3e1031f3f6d8a9688f6d5cb1bacd2a
2020-07-01walletdb: Move Rewrite into BerkeleyDatabaseAndrew Chow
Make Rewrite actually a member of BerkeleyDatabase instead of a static function in BerkeleyBatch
2020-07-01walletdb: Move PeriodicFlush into WalletDatabaseAndrew Chow
Make PeriodicFlush a non-static member of WalletDatabase instead of WalletBatch.
2020-07-01walletdb: Combine VerifyDatabaseFile and VerifyEnvironmentAndrew Chow
Combine these two functions into a single Verify function that is a member of WalletDatabase. Additionally, these are no longer static.
2020-07-01Merge #19308: wallet: BerkeleyBatch Handle cursor internallyWladimir J. van der Laan
ca24edfbc1941ed0a3c9586416dae4e84794eb66 walletdb: Handle cursor internally (Andrew Chow) Pull request description: Instead of returning a Dbc (BDB cursor object) and having the caller deal with the cursor, make BerkeleyBatch handle the cursor internally. Split from #18971 ACKs for top commit: ryanofsky: Code review ACK ca24edfbc1941ed0a3c9586416dae4e84794eb66. Changes since last review: StartCursor rename, moving CloseCursor calls near returns promag: Code review ACK ca24edfbc1941ed0a3c9586416dae4e84794eb66. Tree-SHA512: f029b498c7f275aedca53ce7ade7cb99c82975fd6cad17346a4990fb3bcc54e2a5309b32053bd13def9ee464d331b036ac79abb8fc4fa561170c6cfc85283447
2020-06-22walletdb: Handle cursor internallyAndrew Chow
Instead of returning a Dbc (BDB cursor object) and having the caller deal with the cursor, make BerkeleyBatch handle the cursor internally. This prepares BerkeleyBatch to work with other database systems as Dbc objects are BDB specific.
2020-06-20wallet: Replace CDataStream& with CDataStream&& where appropriateMarcoFalke
The keys and values are only to be used once because their memory is set to zero. Make that explicit by moving the bytes into the lower level methods.
2020-06-20wallet: Remove confusing double return value ret+successMarcoFalke
Also, remove redundant comments
2020-06-18Merge #19310: wallet: BerkeleyDatabase make BerkeleyDatabase::Create, ↵MarcoFalke
CreateMock, and CreateDummy non-static functions da7a83c5ee6a51ff4c3eb35dbd447a310c4a0387 Remove WalletDatabase::Create, CreateMock, and CreateDummy (Andrew Chow) d6045d0ac615b5984b72e83cb25aa8a245a177a0 scripted-diff: Replace WalletDatabase::Create* with CreateWalletDatabase (Andrew Chow) 45c08f8a7b89dda6afb7d7cf9573a8ae8290ac92 Add Create*WalletDatabase functions (Andrew Chow) Pull request description: Instead of having `Create`, `CreateMock`, and `CreateDummy` being static functions in `BerkeleyDatabase`, move these to standalone functions in `walletdb.cpp`. This prepares us for having different `WalletDatabase` classes. Part of #18971. This was originally one commit but has been split into 3 to make it (hopefully) easier to review. ACKs for top commit: MarcoFalke: ACK da7a83c5ee6a51ff4c3eb35dbd447a310c4a0387 🎂 ryanofsky: Code review ACK da7a83c5ee6a51ff4c3eb35dbd447a310c4a0387. Easy review, nice scripted-diff Tree-SHA512: 1feb7cb3889168c555154bf3701a49095fd6b8cab911d44b7f7efbf6fcee2280ccb3d4afec8a83755b39a592ecd13b90a318faa655c321f87bdabdf1e2312327
2020-06-17Remove WalletDatabase::Create, CreateMock, and CreateDummyAndrew Chow
These are superseded by CreateWalletDatabase, CreateMockWalletDatabase, and CreateDummyWalletDatabase
2020-06-17walletdb: refactor Read, Write, Erase, and Exists into non-template funcAndrew Chow
In order to override these later, the specific details of how the Read, Write, Erase, and Exists functions interact with the actual database file need to go into functions that are not templated.
2020-06-15walletdb: Move BDB specific things into bdb.{cpp/h}Andrew Chow
Leave wallet/db.{cpp/h} for generic WalletDatabase stuff. The BDB specific stuff goes into bdb.{cpp/h}