92 lines
3.2 KiB
Rust
92 lines
3.2 KiB
Rust
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// Copyright 2015-2018 Parity Technologies (UK) Ltd.
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// This file is part of Parity.
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// Parity is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity. If not, see <http://www.gnu.org/licenses/>.
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extern crate kvdb_rocksdb;
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extern crate migration_rocksdb;
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use std::sync::Arc;
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use std::path::Path;
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use ethcore::db::NUM_COLUMNS;
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use ethcore::client::{ClientConfig, DatabaseCompactionProfile};
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use kvdb::{KeyValueDB, KeyValueDBHandler};
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use self::kvdb_rocksdb::{Database, DatabaseConfig};
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use cache::CacheConfig;
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mod migration;
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mod helpers;
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pub use self::migration::migrate;
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/// Open a secret store DB using the given secret store data path. The DB path is one level beneath the data path.
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#[cfg(feature = "secretstore")]
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pub fn open_secretstore_db(data_path: &str) -> Result<Arc<KeyValueDB>, String> {
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use std::path::PathBuf;
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let mut db_path = PathBuf::from(data_path);
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db_path.push("db");
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let db_path = db_path.to_str().ok_or_else(|| "Invalid secretstore path".to_string())?;
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Ok(Arc::new(Database::open_default(&db_path).map_err(|e| format!("Error opening database: {:?}", e))?))
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}
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/// Open a new client DB.
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pub fn open_client_db(client_path: &Path, client_config: &ClientConfig) -> Result<Arc<KeyValueDB>, String> {
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let client_db_config = helpers::client_db_config(client_path, client_config);
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let client_db = Arc::new(Database::open(
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&client_db_config,
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&client_path.to_str().expect("DB path could not be converted to string.")
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).map_err(|e| format!("Client service database error: {:?}", e))?);
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Ok(client_db)
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}
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/// Create a restoration db handler using the config generated by `client_path` and `client_config`.
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pub fn restoration_db_handler(client_path: &Path, client_config: &ClientConfig) -> Box<KeyValueDBHandler> {
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use kvdb::Error;
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let client_db_config = helpers::client_db_config(client_path, client_config);
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struct RestorationDBHandler {
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config: DatabaseConfig,
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}
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impl KeyValueDBHandler for RestorationDBHandler {
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fn open(&self, db_path: &Path) -> Result<Arc<KeyValueDB>, Error> {
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Ok(Arc::new(Database::open(&self.config, &db_path.to_string_lossy())?))
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}
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}
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Box::new(RestorationDBHandler {
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config: client_db_config,
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})
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}
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/// Open a new main DB.
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pub fn open_db(client_path: &str, cache_config: &CacheConfig, compaction: &DatabaseCompactionProfile, wal: bool) -> Result<Arc<KeyValueDB>, String> {
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let db_config = DatabaseConfig {
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memory_budget: Some(cache_config.blockchain() as usize * 1024 * 1024),
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compaction: helpers::compaction_profile(&compaction, &Path::new(client_path)),
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wal: wal,
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.. DatabaseConfig::with_columns(NUM_COLUMNS)
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};
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Ok(Arc::new(Database::open(
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&db_config,
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client_path
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).map_err(|e| format!("Failed to open database: {}", e))?))
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}
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