Repair Kit

• Add sqliterk_cancel function to cancel ongoing output operations.
• Add corresponding Java interface to cancel operations on Android.

iOS

• Builtin WCTColumnCoding supports all id<NSCoding> objects now.
• Compatible with iOS 11.
• Fullfsync is used by default for data integrity.
• Add -initWithExistingTag: for WCTDatabase to get existing database without path.

WCTDatabase* database = [WCTDatabase [alloc] initWithPath:path];
database.tag = 123;
WCTDatabase* withoutPath = [[WCTDatabase alloc] initWithExistingTag:123];

• Some minor bug fixes, performance improvement and code refactor.

Android

• Add asynchronous checkpointing support and custom checkpointing callback. This can improve performance in WAL mode.

SQLiteDatabase db = SQLiteDatabase.openOrCreateDatabaseInWalMode(...);

// Use asynchronous checkpointing.
db.setAsyncCheckpointEnabled(true);

// OR use custom checkpointer.
SQLiteCheckpointListener callback = new SQLiteCheckpointListener() {
    //...
};
db.setCheckpointCallback(callback);

• Add SQLiteTrace.onConnectionObtained(...) interface to trace concurrency performance.
• Add cancelable version of SQLiteDatabase.execSQL(). See CancellationSignal for details.

CancellationSignal signal = new CancellationSignal();
db.execSQL(longRunningSQL, args, signal);

// on another thread
signal.cancel();

• Enable SQLITE_ENABLE_FTS3_PARENTHESIS compilation option on SQLCipher, which enables AND, OR operators in FTS3/4.
• Use CancellationSignal for canceling BackupKit, RecoverKit and RepairKit operations. See repair sample for details.
• Add callback interface for RepairKit to show progress to the users. See RepairKit.Callback and RepairKit.setCallback().
• Do not load libwcdb.so if it's already loaded on the first use. This makes WCDB compatible to Tinker framework.
• Various bug fixes.