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 mdoule 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.

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

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>.

WriteGuard

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

Lock [
Experimental
]
LockCell [
Experimental
]
MTLock [
Experimental
]
RwLock [
Experimental
]

Traits

Send [
Experimental
]
Sync [
Experimental
]

Functions

assert_send_sync_val [
Experimental
]
assert_send_val [
Experimental
]
assert_sync [
Experimental
]

Type Definitions

MetadataRef [
Experimental
]