Module rustc_data_structures::sync[][src]

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

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

Lrc is an alias of either Rc or Arc.

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

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

LockCell is a thread safe version of Cell, with set and get operations. It can never deadlock. It uses Cell when cfg!(parallel_queries) is false, otherwise it is a Lock.

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

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

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

Re-exports

pub use self::serial_join as join;
pub use self::serial_scope as scope;

Structs

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'.

ReadGuard

Wraps a borrowed reference to a value in a RefCell box. A wrapper type for an immutably borrowed value from a RefCell<T>.

Weak

Weak is a version of Rc that holds a non-owning reference to the managed value. The value is accessed by calling upgrade on the Weak pointer, which returns an Option<Rc<T>>.

WriteGuard

A wrapper type for a mutably borrowed value from a RefCell<T>.

Lock [
Experimental
]
LockCell [
Experimental
]
MTLock [
Experimental
]
Once [
Experimental
]

A type whose inner value can be written once and then will stay read-only

OneThread [
Experimental
]

A type which only allows its inner value to be used in one thread. It will panic if it is used on multiple threads.

RwLock [
Experimental
]
SerialScope [
Experimental
]
WorkerLocal [
Experimental
]

Traits

ParallelIterator

An interface for dealing with iterators.

HashMapExt [
Experimental
]
Send [
Experimental
]
Sync [
Experimental
]

Functions

assert_send_sync_val [
Experimental
]
assert_send_val [
Experimental
]
assert_sync [
Experimental
]
par_iter [
Experimental
]
serial_join [
Experimental
]
serial_scope [
Experimental
]

Type Definitions

MTRef [
Experimental
]
MetadataRef [
Experimental
]