Trait lock_api::RawMutex

pub unsafe trait RawMutex {
    type GuardMarker;

    const INIT: Self;

    // Required methods
    fn lock(&self);
    fn try_lock(&self) -> bool;
    unsafe fn unlock(&self);

    // Provided method
    fn is_locked(&self) -> bool { ... }
}

Basic operations for a mutex.

Types implementing this trait can be used by Mutex to form a safe and fully-functioning mutex type.

Safety

Implementations of this trait must ensure that the mutex is actually exclusive: a lock can’t be acquired while the mutex is already locked.

Required Associated Types

type GuardMarker

Marker type which determines whether a lock guard should be Send. Use one of the GuardSend or GuardNoSend helper types here.

Required Associated Constants

const INIT: Self

Initial value for an unlocked mutex.

Required Methods

fn lock(&self)

Acquires this mutex, blocking the current thread until it is able to do so.

fn try_lock(&self) -> bool

Attempts to acquire this mutex without blocking. Returns true if the lock was successfully acquired and false otherwise.

unsafe fn unlock(&self)

Unlocks this mutex.

Safety

This method may only be called if the mutex is held in the current context, i.e. it must be paired with a successful call to lock, try_lock, try_lock_for or try_lock_until.

Provided Methods

fn is_locked(&self) -> bool

Checks whether the mutex is currently locked.

Object Safety

This trait is not object safe.

Implementors