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Check pruning by db modification date (#1924)

This commit is contained in:
Arkadiy Paronyan 2016-08-12 17:48:11 +02:00 committed by GitHub
parent 8741d0d155
commit 425e1ce04c
1 changed files with 6 additions and 14 deletions
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20
parity/params.rs
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@ -15,11 +15,10 @@
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
use std::str::FromStr;
use std::sync::Arc;
use std::fs;
use std::time::Duration;
use util::{contents, Database, DatabaseConfig, journaldb, H256, Address, U256, version_data};
use util::{contents, H256, Address, U256, version_data};
use util::journaldb::Algorithm;
use ethcore::client;
use ethcore::spec::Spec;
use ethcore::ethereum;
use ethcore::miner::{GasPricer, GasPriceCalibratorOptions};
@ -100,20 +99,13 @@ impl Pruning {
fn find_best_db(dirs: &Directories, genesis_hash: H256, fork_name: Option<&String>) -> Algorithm {
let mut algo_types = Algorithm::all_types();
// if all dbs have the same latest era, the last element is the default one
// if all dbs have the same modification time, the last element is the default one
algo_types.push(Algorithm::default());
algo_types.into_iter().max_by_key(|i| {
let client_path = dirs.client_path(genesis_hash, fork_name, *i);
let config = DatabaseConfig::with_columns(client::DB_NO_OF_COLUMNS);
let db = match Database::open(&config, client_path.to_str().unwrap()) {
Ok(db) => db,
Err(_) => return 0,
};
let db = journaldb::new(Arc::new(db), *i, client::DB_COL_STATE);
trace!(target: "parity", "Looking for best DB: {} at {:?}", i, db.latest_era());
db.latest_era().unwrap_or(0)
let mut client_path = dirs.client_path(genesis_hash, fork_name, *i);
client_path.push("CURRENT");
fs::metadata(&client_path).and_then(|m| m.modified()).ok()
}).unwrap()
}
}