From 871307ce90ba6125315caf067949f52dada5970e Mon Sep 17 00:00:00 2001 From: Christian Cunningham Date: Tue, 23 Aug 2022 21:00:28 -0700 Subject: Remove old code --- src/sync.rs | 67 ------------------------------------------------------------- 1 file changed, 67 deletions(-) (limited to 'src/sync.rs') diff --git a/src/sync.rs b/src/sync.rs index cb245da..373e8f8 100644 --- a/src/sync.rs +++ b/src/sync.rs @@ -1,68 +1 @@ pub use os_pic::sync::*; -/* -//! # Synchronization module -//! -//! Provides synchronization objects for thread-safe memory sharing. -use core::cell::UnsafeCell; - -/// # Synchronization interfaces -/// -/// Provides Synchronization traits. -pub mod interface { - /// # Mutex Trait - /// - /// Basic Locking primitive to allow single-process access to data - pub trait Mutex { - /// # The data - /// - /// Each mutex protects some internal data from modification across - /// processes when it is in use. This is important if the process - /// is preempted while the function is using it. - type Data; - /// # Locking mechanism - /// - /// Locks the mutex to access the data in a closure. - /// The data can be read and modified in this closure without worry - /// of poisoning the data across processes. - fn lock<'a, R>(&'a self, f: impl FnOnce(&'a mut Self::Data) -> R) -> R; - } -} - -/// # Basic Lock Structure -pub struct NullLock -where - T: ?Sized, -{ - /// The internal data to safely share - data: UnsafeCell, -} - -/// # Allow thread sharing -unsafe impl Send for NullLock where T: ?Sized + Send {} -/// # Allow thread sharing -unsafe impl Sync for NullLock where T: ?Sized + Send {} - -impl NullLock { - /// # Create a new instance of the lock - pub const fn new(data: T) -> Self { - Self { - data: UnsafeCell::new(data), - } - } -} - -impl interface::Mutex for NullLock { - /// # Underlying data of the lock - type Data = T; - - /// # Locking mechanism - /// - /// Locks the Mutex, and passes a mutable reference - /// to the encapsulated data to a closure. - fn lock<'a, R>(&'a self, f: impl FnOnce(&'a mut T) -> R) -> R { - let data = unsafe { &mut *self.data.get() }; - - f(data) - } -} -*/ -- cgit v1.2.1