separated kvdb into 3 crates: kvdb, kvdb-memorydb && kvdb-rocksdb, #6693

ethcore/light/Cargo.toml

@@ -40,6 +40,8 @@ stats = { path = "../../util/stats" }
 hash = { path = "../../util/hash" }
 triehash = { path = "../../util/triehash" }
 kvdb = { path = "../../util/kvdb" }
+kvdb-rocksdb = { path = "../../util/kvdb-rocksdb" }
+kvdb-memorydb = { path = "../../util/kvdb-memorydb" }
 
 [features]
 default = []

ethcore/light/src/client/header_chain.rs

@@ -728,7 +728,8 @@ mod tests {
 	use ethcore::header::Header;
 	use ethcore::spec::Spec;
   	use cache::Cache;
-	use kvdb::{in_memory, KeyValueDB};
+	use kvdb::KeyValueDB;
+	use kvdb_memorydb::in_memory;
 
 	use time::Duration;
 	use parking_lot::Mutex;

ethcore/light/src/client/mod.rs

@@ -36,7 +36,8 @@ use bigint::prelude::U256;
 use bigint::hash::H256;
 use futures::{IntoFuture, Future};
 
-use kvdb::{KeyValueDB, CompactionProfile};
+use kvdb::KeyValueDB;
+use kvdb_rocksdb::CompactionProfile;
 
 use self::fetch::ChainDataFetcher;
 use self::header_chain::{AncestryIter, HeaderChain};
@@ -214,7 +215,7 @@ impl<T: ChainDataFetcher> Client<T> {
 		io_channel: IoChannel<ClientIoMessage>,
 		cache: Arc<Mutex<Cache>>
 	) -> Self {
-		let db = ::kvdb::in_memory(0);
+		let db = ::kvdb_memorydb::in_memory(0);
 
 		Client::new(
 			config,

ethcore/light/src/client/service.rs

@@ -25,7 +25,7 @@ use ethcore::db;
 use ethcore::service::ClientIoMessage;
 use ethcore::spec::Spec;
 use io::{IoContext, IoError, IoHandler, IoService};
-use kvdb::{Database, DatabaseConfig};
+use kvdb_rocksdb::{Database, DatabaseConfig};
 
 use cache::Cache;
 use parking_lot::Mutex;

ethcore/light/src/lib.rs

@@ -92,6 +92,8 @@ extern crate vm;
 extern crate hash;
 extern crate triehash;
 extern crate kvdb;
+extern crate kvdb_memorydb;
+extern crate kvdb_rocksdb;
 
 #[cfg(feature = "ipc")]
 extern crate ethcore_ipc as ipc;