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-rw-r--r--vendor/tracing-subscriber/src/sync.rs57
1 files changed, 0 insertions, 57 deletions
diff --git a/vendor/tracing-subscriber/src/sync.rs b/vendor/tracing-subscriber/src/sync.rs
deleted file mode 100644
index ec42b834a..000000000
--- a/vendor/tracing-subscriber/src/sync.rs
+++ /dev/null
@@ -1,57 +0,0 @@
-//! Abstracts over sync primitive implementations.
-//!
-//! Optionally, we allow the Rust standard library's `RwLock` to be replaced
-//! with the `parking_lot` crate's implementation. This may provide improved
-//! performance in some cases. However, the `parking_lot` dependency is an
-//! opt-in feature flag. Because `parking_lot::RwLock` has a slightly different
-//! API than `std::sync::RwLock` (it does not support poisoning on panics), we
-//! wrap it with a type that provides the same method signatures. This allows us
-//! to transparently swap `parking_lot` in without changing code at the callsite.
-#[allow(unused_imports)] // may be used later;
-pub(crate) use std::sync::{LockResult, PoisonError, TryLockResult};
-
-#[cfg(not(feature = "parking_lot"))]
-pub(crate) use std::sync::{RwLock, RwLockReadGuard, RwLockWriteGuard};
-
-#[cfg(feature = "parking_lot")]
-pub(crate) use self::parking_lot_impl::*;
-
-#[cfg(feature = "parking_lot")]
-mod parking_lot_impl {
- pub(crate) use parking_lot::{RwLockReadGuard, RwLockWriteGuard};
- use std::sync::{LockResult, TryLockError, TryLockResult};
-
- #[derive(Debug)]
- pub(crate) struct RwLock<T> {
- inner: parking_lot::RwLock<T>,
- }
-
- impl<T> RwLock<T> {
- pub(crate) fn new(val: T) -> Self {
- Self {
- inner: parking_lot::RwLock::new(val),
- }
- }
-
- #[inline]
- pub(crate) fn get_mut(&mut self) -> LockResult<&mut T> {
- Ok(self.inner.get_mut())
- }
-
- #[inline]
- pub(crate) fn read(&self) -> LockResult<RwLockReadGuard<'_, T>> {
- Ok(self.inner.read())
- }
-
- #[inline]
- #[allow(dead_code)] // may be used later;
- pub(crate) fn try_read(&self) -> TryLockResult<RwLockReadGuard<'_, T>> {
- self.inner.try_read().ok_or(TryLockError::WouldBlock)
- }
-
- #[inline]
- pub(crate) fn write(&self) -> LockResult<RwLockWriteGuard<'_, T>> {
- Ok(self.inner.write())
- }
- }
-}