| 1 | use std::sync::{self, RwLockReadGuard, RwLockWriteGuard, TryLockError}; |
|---|---|
| 2 | |
| 3 | /// Adapter for `std::sync::RwLock` that removes the poisoning aspects |
| 4 | /// from its api. |
| 5 | #[derive(Debug)] |
| 6 | pub(crate) struct RwLock<T: ?Sized>(sync::RwLock<T>); |
| 7 | |
| 8 | #[allow(dead_code)] |
| 9 | impl<T> RwLock<T> { |
| 10 | #[inline] |
| 11 | pub(crate) fn new(t: T) -> Self { |
| 12 | Self(sync::RwLock::new(t)) |
| 13 | } |
| 14 | |
| 15 | #[inline] |
| 16 | pub(crate) fn read(&self) -> RwLockReadGuard<'_, T> { |
| 17 | match self.0.read() { |
| 18 | Ok(guard) => guard, |
| 19 | Err(p_err) => p_err.into_inner(), |
| 20 | } |
| 21 | } |
| 22 | |
| 23 | #[inline] |
| 24 | pub(crate) fn try_read(&self) -> Option<RwLockReadGuard<'_, T>> { |
| 25 | match self.0.try_read() { |
| 26 | Ok(guard) => Some(guard), |
| 27 | Err(TryLockError::Poisoned(p_err)) => Some(p_err.into_inner()), |
| 28 | Err(TryLockError::WouldBlock) => None, |
| 29 | } |
| 30 | } |
| 31 | |
| 32 | #[inline] |
| 33 | pub(crate) fn write(&self) -> RwLockWriteGuard<'_, T> { |
| 34 | match self.0.write() { |
| 35 | Ok(guard) => guard, |
| 36 | Err(p_err) => p_err.into_inner(), |
| 37 | } |
| 38 | } |
| 39 | |
| 40 | #[inline] |
| 41 | pub(crate) fn try_write(&self) -> Option<RwLockWriteGuard<'_, T>> { |
| 42 | match self.0.try_write() { |
| 43 | Ok(guard) => Some(guard), |
| 44 | Err(TryLockError::Poisoned(p_err)) => Some(p_err.into_inner()), |
| 45 | Err(TryLockError::WouldBlock) => None, |
| 46 | } |
| 47 | } |
| 48 | } |
| 49 |