Create Poisonable API

1 files changed, 92 insertions, 0 deletions

diff --git a/src/poisonable/guard.rs b/src/poisonable/guard.rs
new file mode 100644
index 0000000..97b0028
--- /dev/null
+++ b/src/poisonable/guard.rs
@@ -0,0 +1,92 @@
+use std::fmt::{Debug, Display};
+use std::ops::{Deref, DerefMut};
+use std::sync::atomic::Ordering::Relaxed;
+
+use crate::Keyable;
+
+use super::{PoisonGuard, PoisonRef};
+
+impl<'flag, Guard> Drop for PoisonRef<'flag, Guard> {
+	fn drop(&mut self) {
+		#[cfg(panic = "unwind")]
+		if std::thread::panicking() {
+			self.flag.0.store(true, Relaxed);
+		}
+	}
+}
+
+impl<'flag, Guard: Debug> Debug for PoisonRef<'flag, Guard> {
+	fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+		Debug::fmt(&**self, f)
+	}
+}
+
+impl<'flag, Guard: Display> Display for PoisonRef<'flag, Guard> {
+	fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+		Display::fmt(&**self, f)
+	}
+}
+
+impl<'flag, Guard> Deref for PoisonRef<'flag, Guard> {
+	type Target = Guard;
+
+	fn deref(&self) -> &Self::Target {
+		&self.guard
+	}
+}
+
+impl<'flag, Guard> DerefMut for PoisonRef<'flag, Guard> {
+	fn deref_mut(&mut self) -> &mut Self::Target {
+		&mut self.guard
+	}
+}
+
+impl<'flag, Guard> AsRef<Guard> for PoisonRef<'flag, Guard> {
+	fn as_ref(&self) -> &Guard {
+		&self.guard
+	}
+}
+
+impl<'flag, Guard> AsMut<Guard> for PoisonRef<'flag, Guard> {
+	fn as_mut(&mut self) -> &mut Guard {
+		&mut self.guard
+	}
+}
+
+impl<'flag, 'key, Guard: Debug, Key: Keyable> Debug for PoisonGuard<'flag, 'key, Guard, Key> {
+	fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+		Debug::fmt(&**self, f)
+	}
+}
+
+impl<'flag, 'key, Guard: Display, Key: Keyable> Display for PoisonGuard<'flag, 'key, Guard, Key> {
+	fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+		Display::fmt(&**self, f)
+	}
+}
+
+impl<'flag, 'key, Guard, Key: Keyable> Deref for PoisonGuard<'flag, 'key, Guard, Key> {
+	type Target = Guard;
+
+	fn deref(&self) -> &Self::Target {
+		&self.guard.guard
+	}
+}
+
+impl<'flag, 'key, Guard, Key: Keyable> DerefMut for PoisonGuard<'flag, 'key, Guard, Key> {
+	fn deref_mut(&mut self) -> &mut Self::Target {
+		&mut self.guard.guard
+	}
+}
+
+impl<'flag, 'key, Guard, Key: Keyable> AsRef<Guard> for PoisonGuard<'flag, 'key, Guard, Key> {
+	fn as_ref(&self) -> &Guard {
+		&self.guard.guard
+	}
+}
+
+impl<'flag, 'key, Guard, Key: Keyable> AsMut<Guard> for PoisonGuard<'flag, 'key, Guard, Key> {
+	fn as_mut(&mut self) -> &mut Guard {
+		&mut self.guard.guard
+	}
+}