From a990de90fe41456a23e58bd087d2f107d321f3a1 Mon Sep 17 00:00:00 2001 From: Valentin Popov Date: Fri, 19 Jul 2024 16:37:58 +0400 Subject: Deleted vendor folder --- vendor/crossbeam-utils/tests/sharded_lock.rs | 252 --------------------------- 1 file changed, 252 deletions(-) delete mode 100644 vendor/crossbeam-utils/tests/sharded_lock.rs (limited to 'vendor/crossbeam-utils/tests/sharded_lock.rs') diff --git a/vendor/crossbeam-utils/tests/sharded_lock.rs b/vendor/crossbeam-utils/tests/sharded_lock.rs deleted file mode 100644 index 002f7f5..0000000 --- a/vendor/crossbeam-utils/tests/sharded_lock.rs +++ /dev/null @@ -1,252 +0,0 @@ -use std::sync::atomic::{AtomicUsize, Ordering}; -use std::sync::mpsc::channel; -use std::sync::{Arc, TryLockError}; -use std::thread; - -use crossbeam_utils::sync::ShardedLock; -use rand::Rng; - -#[derive(Eq, PartialEq, Debug)] -struct NonCopy(i32); - -#[test] -fn smoke() { - let l = ShardedLock::new(()); - drop(l.read().unwrap()); - drop(l.write().unwrap()); - drop((l.read().unwrap(), l.read().unwrap())); - drop(l.write().unwrap()); -} - -#[test] -fn frob() { - const N: u32 = 10; - #[cfg(miri)] - const M: usize = 50; - #[cfg(not(miri))] - const M: usize = 1000; - - let r = Arc::new(ShardedLock::new(())); - - let (tx, rx) = channel::<()>(); - for _ in 0..N { - let tx = tx.clone(); - let r = r.clone(); - thread::spawn(move || { - let mut rng = rand::thread_rng(); - for _ in 0..M { - if rng.gen_bool(1.0 / (N as f64)) { - drop(r.write().unwrap()); - } else { - drop(r.read().unwrap()); - } - } - drop(tx); - }); - } - drop(tx); - let _ = rx.recv(); -} - -#[test] -fn arc_poison_wr() { - let arc = Arc::new(ShardedLock::new(1)); - let arc2 = arc.clone(); - let _: Result<(), _> = thread::spawn(move || { - let _lock = arc2.write().unwrap(); - panic!(); - }) - .join(); - assert!(arc.read().is_err()); -} - -#[test] -fn arc_poison_ww() { - let arc = Arc::new(ShardedLock::new(1)); - assert!(!arc.is_poisoned()); - let arc2 = arc.clone(); - let _: Result<(), _> = thread::spawn(move || { - let _lock = arc2.write().unwrap(); - panic!(); - }) - .join(); - assert!(arc.write().is_err()); - assert!(arc.is_poisoned()); -} - -#[test] -fn arc_no_poison_rr() { - let arc = Arc::new(ShardedLock::new(1)); - let arc2 = arc.clone(); - let _: Result<(), _> = thread::spawn(move || { - let _lock = arc2.read().unwrap(); - panic!(); - }) - .join(); - let lock = arc.read().unwrap(); - assert_eq!(*lock, 1); -} -#[test] -fn arc_no_poison_sl() { - let arc = Arc::new(ShardedLock::new(1)); - let arc2 = arc.clone(); - let _: Result<(), _> = thread::spawn(move || { - let _lock = arc2.read().unwrap(); - panic!() - }) - .join(); - let lock = arc.write().unwrap(); - assert_eq!(*lock, 1); -} - -#[test] -fn arc() { - let arc = Arc::new(ShardedLock::new(0)); - let arc2 = arc.clone(); - let (tx, rx) = channel(); - - thread::spawn(move || { - let mut lock = arc2.write().unwrap(); - for _ in 0..10 { - let tmp = *lock; - *lock = -1; - thread::yield_now(); - *lock = tmp + 1; - } - tx.send(()).unwrap(); - }); - - // Readers try to catch the writer in the act - let mut children = Vec::new(); - for _ in 0..5 { - let arc3 = arc.clone(); - children.push(thread::spawn(move || { - let lock = arc3.read().unwrap(); - assert!(*lock >= 0); - })); - } - - // Wait for children to pass their asserts - for r in children { - assert!(r.join().is_ok()); - } - - // Wait for writer to finish - rx.recv().unwrap(); - let lock = arc.read().unwrap(); - assert_eq!(*lock, 10); -} - -#[test] -fn arc_access_in_unwind() { - let arc = Arc::new(ShardedLock::new(1)); - let arc2 = arc.clone(); - let _ = thread::spawn(move || { - struct Unwinder { - i: Arc>, - } - impl Drop for Unwinder { - fn drop(&mut self) { - let mut lock = self.i.write().unwrap(); - *lock += 1; - } - } - let _u = Unwinder { i: arc2 }; - panic!(); - }) - .join(); - let lock = arc.read().unwrap(); - assert_eq!(*lock, 2); -} - -#[test] -fn unsized_type() { - let sl: &ShardedLock<[i32]> = &ShardedLock::new([1, 2, 3]); - { - let b = &mut *sl.write().unwrap(); - b[0] = 4; - b[2] = 5; - } - let comp: &[i32] = &[4, 2, 5]; - assert_eq!(&*sl.read().unwrap(), comp); -} - -#[test] -fn try_write() { - let lock = ShardedLock::new(0isize); - let read_guard = lock.read().unwrap(); - - let write_result = lock.try_write(); - match write_result { - Err(TryLockError::WouldBlock) => (), - Ok(_) => panic!("try_write should not succeed while read_guard is in scope"), - Err(_) => panic!("unexpected error"), - } - - drop(read_guard); -} - -#[test] -fn test_into_inner() { - let m = ShardedLock::new(NonCopy(10)); - assert_eq!(m.into_inner().unwrap(), NonCopy(10)); -} - -#[test] -fn test_into_inner_drop() { - struct Foo(Arc); - impl Drop for Foo { - fn drop(&mut self) { - self.0.fetch_add(1, Ordering::SeqCst); - } - } - let num_drops = Arc::new(AtomicUsize::new(0)); - let m = ShardedLock::new(Foo(num_drops.clone())); - assert_eq!(num_drops.load(Ordering::SeqCst), 0); - { - let _inner = m.into_inner().unwrap(); - assert_eq!(num_drops.load(Ordering::SeqCst), 0); - } - assert_eq!(num_drops.load(Ordering::SeqCst), 1); -} - -#[test] -fn test_into_inner_poison() { - let m = Arc::new(ShardedLock::new(NonCopy(10))); - let m2 = m.clone(); - let _ = thread::spawn(move || { - let _lock = m2.write().unwrap(); - panic!("test panic in inner thread to poison ShardedLock"); - }) - .join(); - - assert!(m.is_poisoned()); - match Arc::try_unwrap(m).unwrap().into_inner() { - Err(e) => assert_eq!(e.into_inner(), NonCopy(10)), - Ok(x) => panic!("into_inner of poisoned ShardedLock is Ok: {:?}", x), - } -} - -#[test] -fn test_get_mut() { - let mut m = ShardedLock::new(NonCopy(10)); - *m.get_mut().unwrap() = NonCopy(20); - assert_eq!(m.into_inner().unwrap(), NonCopy(20)); -} - -#[test] -fn test_get_mut_poison() { - let m = Arc::new(ShardedLock::new(NonCopy(10))); - let m2 = m.clone(); - let _ = thread::spawn(move || { - let _lock = m2.write().unwrap(); - panic!("test panic in inner thread to poison ShardedLock"); - }) - .join(); - - assert!(m.is_poisoned()); - match Arc::try_unwrap(m).unwrap().get_mut() { - Err(e) => assert_eq!(*e.into_inner(), NonCopy(10)), - Ok(x) => panic!("get_mut of poisoned ShardedLock is Ok: {:?}", x), - } -} -- cgit v1.2.3