Module rustc_ap_rustc_data_structures::sync[−][src]

Expand description

This module defines types which are thread safe if cfg!(parallel_compiler) is true.

Lrc is an alias of Arc if cfg!(parallel_compiler) is true, Rc otherwise.

Lock is a mutex. It internally uses parking_lot::Mutex if cfg!(parallel_compiler) is true, RefCell otherwise.

RwLock is a read-write lock. It internally uses parking_lot::RwLock if cfg!(parallel_compiler) is true, RefCell otherwise.

MTLock is a mutex which disappears if cfg!(parallel_compiler) is false.

MTRef is an immutable reference if cfg!(parallel_compiler), and a mutable reference otherwise.

rustc_erase_owner! erases a OwningRef owner into Erased or Erased + Send + Sync depending on the value of cfg!(parallel_compiler).

Re-exports

pub use std::sync::atomic::Ordering::SeqCst;

Atomic	This is a single threaded variant of `AtomicU64`, `AtomicUsize`, etc. It has explicit ordering arguments and is only intended for use with the native atomic types. You should use this type through the `AtomicU64`, `AtomicUsize`, etc, type aliases as it’s not intended to be used separately.
Lock
MTLock
OnceCell	Experimental A cell which can be written to only once.
LockGuard	A wrapper type for a mutably borrowed value from a `RefCell<T>`.
Lrc	A single-threaded reference-counting pointer. ‘Rc’ stands for ‘Reference Counted’.
MappedLockGuard	A wrapper type for a mutably borrowed value from a `RefCell<T>`.
MappedReadGuard	Wraps a borrowed reference to a value in a `RefCell` box. A wrapper type for an immutably borrowed value from a `RefCell<T>`.
MappedWriteGuard	A wrapper type for a mutably borrowed value from a `RefCell<T>`.
OneThread	A type which only allows its inner value to be used in one thread. It will panic if it is used on multiple threads.
ReadGuard	Wraps a borrowed reference to a value in a `RefCell` box. A wrapper type for an immutably borrowed value from a `RefCell<T>`.
RwLock
Weak	`Weak` is a version of `Rc` that holds a non-owning reference to the managed allocation. The allocation is accessed by calling `upgrade` on the `Weak` pointer, which returns an `Option<Rc<T>>`.
WorkerLocal
WriteGuard	A wrapper type for a mutably borrowed value from a `RefCell<T>`.

Atomic memory orderings

HashMapExt
ParallelIterator	An interface for dealing with iterators.
Send
Sync