78 lines
1.9 KiB
Rust
78 lines
1.9 KiB
Rust
// Copyright 2015, 2016 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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use std::path::PathBuf;
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use std::{env, fs};
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use rand::{Rng, OsRng};
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use ethstore::dir::{KeyDirectory, DiskDirectory};
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use ethstore::{Error, SafeAccount};
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pub fn random_dir() -> PathBuf {
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let mut rng = OsRng::new().unwrap();
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let mut dir = env::temp_dir();
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dir.push(format!("{:x}-{:x}", rng.next_u64(), rng.next_u64()));
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dir
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}
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pub struct TransientDir {
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dir: DiskDirectory,
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path: PathBuf,
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}
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impl TransientDir {
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pub fn create() -> Result<Self, Error> {
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let path = random_dir();
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let result = TransientDir {
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dir: try!(DiskDirectory::create(&path)),
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path: path,
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};
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Ok(result)
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}
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pub fn open() -> Self {
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let path = random_dir();
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TransientDir {
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dir: DiskDirectory::at(&path),
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path: path,
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}
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}
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}
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impl Drop for TransientDir {
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fn drop(&mut self) {
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fs::remove_dir_all(&self.path).expect("Expected to remove temp dir");
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}
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}
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impl KeyDirectory for TransientDir {
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fn load(&self) -> Result<Vec<SafeAccount>, Error> {
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self.dir.load()
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}
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fn update(&self, account: SafeAccount) -> Result<SafeAccount, Error> {
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self.dir.update(account)
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}
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fn insert(&self, account: SafeAccount) -> Result<SafeAccount, Error> {
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self.dir.insert(account)
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}
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fn remove(&self, account: &SafeAccount) -> Result<(), Error> {
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self.dir.remove(account)
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}
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}
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