armdb 0.1.10

sharded bitcask key-value storage optimized for NVMe
Documentation 
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use crate::MigrateAction;

/// Migration function: (key, value) -> MigrateAction<T>
pub type TypedMigrationFn<K, T> = fn(&K, &T) -> MigrateAction<T>;

/// (from_version, migration_fn)
pub type TypedMigration<K, T> = (u16, TypedMigrationFn<K, T>);

/// Migration function for ZeroTree/ZeroMap: (key, value) -> MigrateAction<T>
pub type ZeroMigrationFn<K, T> = fn(&K, &T) -> MigrateAction<T>;

/// (from_version, migration_fn)
pub type ZeroMigration<K, T> = (u16, ZeroMigrationFn<K, T>);