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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,53 +1,50 @@ | ||
| use core::fmt::Debug; | ||
| use std::{ | ||
| cell::RefCell, | ||
| cell::{Ref, RefCell, RefMut}, | ||
| ops::{Deref, DerefMut}, | ||
| rc::Rc, | ||
| sync::{Arc, Mutex}, | ||
| sync::{Arc, Mutex, MutexGuard}, | ||
| }; | ||
|
|
||
| pub trait Accessor<T: Clone> { | ||
| pub trait Accessor<T> { | ||
| fn new(src: T) -> Self; | ||
| fn borrow(&self) -> impl Deref<Target = T>; | ||
| fn borrow_mut(&self) -> impl DerefMut<Target = T>; | ||
| fn access(&self) -> impl Deref<Target = T>; | ||
| fn access_mut(&self) -> impl DerefMut<Target = T>; | ||
| fn replace(&self, src: T) -> T; | ||
| } | ||
|
|
||
| #[derive(Debug, Clone)] | ||
| pub struct BaseAccessor<T> { | ||
| inner: Rc<RefCell<T>>, | ||
| } | ||
| #[derive(Clone, Debug)] | ||
| pub struct BaseAccessor<T>(Rc<RefCell<T>>); | ||
|
|
||
| #[derive(Debug, Clone)] | ||
| pub struct ThreadSafeAccessor<T> { | ||
| inner: Arc<Mutex<T>>, | ||
| } | ||
| #[derive(Clone, Debug)] | ||
| pub struct ThreadSafeAccessor<T>(Arc<Mutex<T>>); | ||
|
|
||
| impl<T: Clone> Accessor<T> for BaseAccessor<T> { | ||
| impl<T> Accessor<T> for BaseAccessor<T> { | ||
| fn new(src: T) -> Self { | ||
| Self { inner: Rc::new(RefCell::new(src)) } | ||
| Self(Rc::new(RefCell::new(src))) | ||
| } | ||
| fn borrow(&self) -> impl Deref<Target = T> { | ||
| self.inner.borrow() | ||
| fn access(&self) -> Ref<T> { | ||
| self.0.try_borrow().unwrap() | ||
| } | ||
| fn borrow_mut(&self) -> impl DerefMut<Target = T> { | ||
| self.inner.borrow_mut() | ||
| fn access_mut(&self) -> RefMut<T> { | ||
| self.0.try_borrow_mut().unwrap() | ||
| } | ||
| fn replace(&self, src: T) -> T { | ||
| std::mem::replace(&mut *self.inner.borrow_mut(), src) | ||
| std::mem::replace(&mut *self.0.try_borrow_mut().unwrap(), src) | ||
| } | ||
| } | ||
|
|
||
| impl<T: Clone> Accessor<T> for ThreadSafeAccessor<T> { | ||
| impl<T> Accessor<T> for ThreadSafeAccessor<T> { | ||
| fn new(src: T) -> Self { | ||
| Self { inner: Arc::new(Mutex::new(src)) } | ||
| Self(Arc::new(Mutex::new(src))) | ||
| } | ||
| fn borrow(&self) -> impl Deref<Target = T> { | ||
| self.inner.try_lock().unwrap() | ||
| fn access(&self) -> MutexGuard<T> { | ||
| self.0.try_lock().unwrap() | ||
| } | ||
| fn borrow_mut(&self) -> impl DerefMut<Target = T> { | ||
| self.inner.try_lock().unwrap() | ||
| fn access_mut(&self) -> MutexGuard<T> { | ||
| self.0.try_lock().unwrap() | ||
| } | ||
| fn replace(&self, src: T) -> T { | ||
| std::mem::replace(&mut *self.inner.try_lock().unwrap(), src) | ||
| std::mem::replace(&mut *self.0.try_lock().unwrap(), src) | ||
| } | ||
| } |
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