Module rustc_data_structures::sync
[−]
[src]
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_global! gives us a way to declare variables which are intended to be
global for the current rustc session. This currently maps to thread-locals,
since rustdoc uses the rustc libraries in multiple threads.
These globals should eventually be moved into the Session structure.
rustc_erase_owner! erases a OwningRef owner into Erased or Erased + Send + Sync
depending on the value of cfg!(parallel_queries).
Structs
| Lock | |
| LockCell | |
| LockGuard |
A wrapper type for a mutably borrowed value from a |
| Lrc |
A single-threaded reference-counting pointer. 'Rc' stands for 'Reference Counted'. |
| MTLock | |
| ReadGuard |
Wraps a borrowed reference to a value in a |
| RwLock |
A mutable memory location with dynamically checked borrow rules |
| WriteGuard |
A wrapper type for a mutably borrowed value from a |
Traits
| Send | |
| Sync |
Functions
| assert_send_sync_val | |
| assert_sync |
Type Definitions
| MetadataRef |