moonbeam_service/lazy_loading/
lock.rs

1// Copyright 2024 Moonbeam foundation
2// This file is part of Moonbeam.
3
4// Moonbeam is free software: you can redistribute it and/or modify
5// it under the terms of the GNU General Public License as published by
6// the Free Software Foundation, either version 3 of the License, or
7// (at your option) any later version.
8
9// Moonbeam is distributed in the hope that it will be useful,
10// but WITHOUT ANY WARRANTY; without even the implied warranty of
11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12// GNU General Public License for more details.
13
14// You should have received a copy of the GNU General Public License
15// along with Moonbeam.  If not, see <http://www.gnu.org/licenses/>.
16
17use parking_lot::{RwLock, RwLockReadGuard, RwLockWriteGuard};
18
19#[derive(Debug, Default)]
20pub struct ReadWriteLock<T: Clone>(RwLock<T>);
21
22impl<T: Clone> ReadWriteLock<T> {
23	pub fn new(item: T) -> Self {
24		ReadWriteLock(RwLock::new(item))
25	}
26
27	pub fn read(&self) -> RwLockReadGuard<T> {
28		self.0.read()
29	}
30
31	pub fn write(&self) -> RwLockWriteGuard<T> {
32		self.0.write()
33	}
34}