Commit Graph

6 Commits

Author SHA1 Message Date
Michal Fousek 5c979f42e6 [#209] Add support for multiple instances of the SDKSynchronizer
Closes #209.

[#845] Introduce ZcashSynchronizerAlias enum

Closes #845.

[#852] SDKSynchronizer using queues label based on the alias

Closes #852.

[#847] Remove posibility to use DatabaseStorageManager as singleton

Closes #847.

[#850] Remove synchronizerConnectionStateChanged notification

Closes #850.

[#855] Add check if the Alias is already used

Closes #855

- Added `UsedAliasesChecker` utility which is used to register aliases
  that are in use.
- `prepare()` and `wipe()` methods now check if the current alias can't
  be used and if not then `InitializerError.aliasAlreadyInUse` is
  thrown/emitted.
- Some public methods that could cause harm if used with the Alias that
  is already in use now throw `SynchronizerError.notPrepared`. Thanks to
  this the client app is forced to call `prepare()` first. And
  `prepare()` does check for the Alias.
- Added tests for new conditions.

[#849] Make InternalSyncProgress aware of the Alias

Closes #849.

[#853] Only instance with default Alias migrates legacy cache DB

Closes #853.

[#851] Apply the Alias to the URLs

Closes #851.

- `Initializer` now updates paths according to alias before paths are
  used anywhere in the SDK.
- Paths update can fail. It would be incovenient for the client apps to
  handle errors thrown from `Initiliazer` constructor. So the error is
  then handled in `SDKSynchronizer.prepare()` or `SDKSynchronizer.wipe()`.

[#846] Stop using SDKMetrics as singleton (#862)

- metrics are not longer a singleton
- tests fixed
- metrics outside init of the synchronizer

[#848] Make logger aware of the alias

- logger is now an instance passed throughout the sdk instead of a static proxy

[#848] Make logger aware of the alias (#868)

- comments addressed

[#848] Make logger aware of the alias (#868)

- returning protocol back

Fix typos

[#856] Add possibility to test multiple synchronizers in the sample app

Closes #856.

- Added `alias` property to `Synchronizer`.
- Added `SyncBlocksListViewController` which provides UI to use multiple
  synchronizers at once.

[#209] Add changelog

- Add changelog for #209.
- Overall improve readability of the rendered changelog. Tickets
  references are now prefixed with `###` instead of `- `.

Fix compilation
2023-03-27 20:42:52 +02:00
Michal Fousek 34c08a3a81 [#771] Fix tests failing because of different paths passed to `FSCompactBlockRepository` and `FSMetadataStore`
Closes #771

- Renamed `cacheDirectory` param in `FSCompactBlockRepository`
  constructor to `fsBlockDbRoot`.
- Pass same paths to `FSCompactBlockRepository` and `FSMetadataStore`
  from tests.
2023-02-09 13:58:49 +01:00
Michal Fousek 385c0a7195 [#746] Modularize GRPC related code
Closes #746

- `LightWalletGRPCService` is no longer public. `LightWalletService` is no longer public.
- `LightWalletGRPCService` shouldn't be used dicrectly. Use `LightWalletServiceFactory` to create instance of the service.
- Moved sending of `blockProcessorConnectivityStateChanged` notification to `Initilizer`.
- All the errors from GRPC are mapped to `LightWalletServiceError`. Handling of `GRPCStatus` in the SDK is no longer required.
- `Service` directory (that contains GRPC code) is moved to `Modules/Service`. We can put more code to `Modules/` if we decide
to modularize more code.
2023-02-03 22:25:54 +01:00
Francisco Gindre fad3aae174
- [#679] Implementation of the File-system based block cache (#679)
Closes https://github.com/zcash/ZcashLightClientKit/issues/697
Closes https://github.com/zcash/ZcashLightClientKit/issues/720
Closes https://github.com/zcash/ZcashLightClientKit/issues/587
Closes https://github.com/zcash/ZcashLightClientKit/issues/667
Closes https://github.com/zcash/ZcashLightClientKit/issues/443
Closes https://github.com/zcash/ZcashLightClientKit/issues/754

- [#790] Fix ShieldFundsTests

Closes #790
Removes comments on `ShieldFundsTests` since those issues have been fixed

Depends on zcash-light-client-ffi changes that adopt newer versions of
 librustzcash crates `zcash_primitives 0.10`, `zcash_client_backend 0.7`,
`zcash_proofs 0.10`, `zcash_client_sqlite 0.5.0`.

Also allows wallets to define a shielding_threshold and will set
foundations to customize minimum confirmations for balances, spends
and shielding operations.

**Test Bootstrapping**

- `ZcashCompactBlockDescriptor`: struct that holds functions to
describe blocks as filenames and compare those filenames

`ZcashCompactBlockDescriptor.live` has the actual implementation
but it can be replaced by mocks if needed on Tests

main implementations are held under `FSCompactBlockRepository.filenameDescription` and `FSCompactBlockRepository.filenameComparison` on a separate extention

`DirectoryListingProviders` provide two default implementations of listing a
directory deterministically. `FileManager` does not define a sorting and needs to be done in-memory by calling `.sorted()` on the resulting collection. If this
is a big toll on performance it can be changed to a POSIX implementation but
this is good for now.

`ZcashCompactBlockDescriptor` adds a `height` helper function to
turn a filename into the height of the block stored.

Implemented `func latestHeight() throws -> BlockHeight ` that
returns the blockheight by querying the cache directory in a sorted
fashion and getting the last value and turning the filename into a
`BlockHeight`

Added `Meta` struct to ZcashCompactBlock.

Tests implemented:
- `filterBlockFiles`
- `testClearTheCache`
- `testLatestHeightEmptyCacheThrows`
- `testLatestHeightEmptyCacheThrowsAsync`
- `testRewindEmptyCacheDoesNothing`
- `testRewindEmptyCacheDoesNothingAsync`
- `testWhenBlockIsStoredItFollowsTheDescribedFormat`
- `testWhenBlockIsStoredItFollowsTheFilenameConvention`
- `testGetLatestHeight`
- `testRewindDeletesTheRightBlocks` test
- `testPerformanceExample` test. This isn't a real performance test because the API doesn't work with async/await yet

adopts `shield_funds` shielding threshold parameter

Implements `initBlockMetadataDb` and fix tests
Renames dbCache parameter to `fsBlockDbRoot`. Builds but tests don't pass.
Removes cacheDb uses from code. Testing utilities still persist.
Added needed information in  MIGRATING and CHANGELOG.
Added helper to perform deletion of legacy db and creation a the
new file system backed cache.

Renames parameters and changes code where needed.
Network Constants turned into `enum` with static methods.
DeletelastDownloadedBlock helper from initializer
Removes CompactBlockStorage and CompactBlockEntity.
Implements `latestCachedBlockHeight` on rustbackend.

*Replaces dependencies on ZcashRustWelding with `FSMetadataStore`*

This allows the tests to not depend in a particular implementation
of either the MockRustBackend of or ZcashRustBackend. Also provides
a way to test errors properly and switch implementations of critical
areas like `writeBlocks`.
2023-02-02 13:58:12 -03:00
Lukas Korba 372ea5af70
[#711] Add Swiftlint plug in to SDK (#722)
- plugin integrated
- errors resolved
- warnings resolved
- package.swift macos platform version 10_15 -> 12
2023-01-18 17:09:04 +01:00
Michal Fousek 349148cd38 [#657] Change how blocks are downloaded and processed
Closes #657

- Now SDK downloads N downloads and scan those. And repeat until sync is
  done. This safes lot of space of disk used to store downloaded blocks.
- Most changes are done in `CompactBlockProcessor.processNewBlocks`.
- `SyncRanges` structure is changed a bit.
- `SyncStatus` is changed. SDK now report that it's syncing with
  progress. It doesn't report each phase of the sync process separately.
  Also appropriate notifications were updated.

Address review comments

- Small changes
- Add tests to check computation of processing ranges for single loop
2022-12-19 09:35:09 +01:00