Make accounts refresh time configurable. (#7345)

* Configurable accounts refresh time.

* Fix tests.

parity/cli/mod.rs

@@ -335,6 +335,10 @@ usage! {
 			"--keys-iterations=[NUM]",
 			"Specify the number of iterations to use when deriving key from the password (bigger is more secure)",
 
+			ARG arg_accounts_refresh: (u64) = 5u64, or |c: &Config| otry!(c.account).refresh_time.clone(),
+			"--accounts-refresh=[TIME]",
+			"Specify the cache time of accounts read from disk. If you manage thousands of accounts set this to 0 to disable refresh.",
+
 			ARG arg_unlock: (Option<String>) = None, or |c: &Config| otry!(c.account).unlock.as_ref().map(|vec| vec.join(",")),
 			"--unlock=[ACCOUNTS]",
 			"Unlock ACCOUNTS for the duration of the execution. ACCOUNTS is a comma-delimited list of addresses. Implies --no-ui.",
@@ -1009,6 +1013,7 @@ struct Account {
 	unlock: Option<Vec<String>>,
 	password: Option<Vec<String>>,
 	keys_iterations: Option<u32>,
+	refresh_time: Option<u64>,
 	disable_hardware: Option<bool>,
 	fast_unlock: Option<bool>,
 }
@@ -1428,6 +1433,7 @@ mod tests {
 			arg_unlock: Some("0xdeadbeefcafe0000000000000000000000000000".into()),
 			arg_password: vec!["~/.safe/password.file".into()],
 			arg_keys_iterations: 10240u32,
+			arg_accounts_refresh: 5u64,
 			flag_no_hardware_wallets: false,
 			flag_fast_unlock: false,
 
@@ -1665,6 +1671,7 @@ mod tests {
 				unlock: Some(vec!["0x1".into(), "0x2".into(), "0x3".into()]),
 				password: Some(vec!["passwdfile path".into()]),
 				keys_iterations: None,
+				refresh_time: None,
 				disable_hardware: None,
 				fast_unlock: None,
 			}),

parity/configuration.rs

@@ -484,6 +484,7 @@ impl Configuration {
 	fn accounts_config(&self) -> Result<AccountsConfig, String> {
 		let cfg = AccountsConfig {
 			iterations: self.args.arg_keys_iterations,
+			refresh_time: self.args.arg_accounts_refresh,
 			testnet: self.args.flag_testnet,
 			password_files: self.args.arg_password.clone(),
 			unlocked_accounts: to_addresses(&self.args.arg_unlock)?,

parity/params.rs

@@ -188,6 +188,7 @@ impl str::FromStr for ResealPolicy {
 #[derive(Debug, PartialEq)]
 pub struct AccountsConfig {
 	pub iterations: u32,
+	pub refresh_time: u64,
 	pub testnet: bool,
 	pub password_files: Vec<String>,
 	pub unlocked_accounts: Vec<Address>,
@@ -199,6 +200,7 @@ impl Default for AccountsConfig {
 	fn default() -> Self {
 		AccountsConfig {
 			iterations: 10240,
+			refresh_time: 5,
 			testnet: false,
 			password_files: Vec::new(),
 			unlocked_accounts: Vec::new(),

parity/run.rs

@@ -909,9 +909,15 @@ fn prepare_account_provider(spec: &SpecType, dirs: &Directories, data_dir: &str,
 			],
 		},
 	};
+
+	let ethstore = EthStore::open_with_iterations(dir, cfg.iterations).map_err(|e| format!("Could not open keys directory: {}", e))?;
+	if cfg.refresh_time > 0 {
+		ethstore.set_refresh_time(::std::time::Duration::from_secs(cfg.refresh_time));
+	}
 	let account_provider = AccountProvider::new(
-		Box::new(EthStore::open_with_iterations(dir, cfg.iterations).map_err(|e| format!("Could not open keys directory: {}", e))?),
-		account_settings);
+		Box::new(ethstore),
+		account_settings,
+	);
 
 	for a in cfg.unlocked_accounts {
 		// Check if the account exists