Crate async_lock

Async synchronization primitives.

This crate provides the following primitives:

• Barrier - enables tasks to synchronize all together at the same time.
• Mutex - a mutual exclusion lock.
• RwLock - a reader-writer lock, allowing any number of readers or a single writer.
• Semaphore - limits the number of concurrent operations.

Structs

Barrier	A counter to synchronize multiple tasks at the same time.
BarrierWaitResult	Returned by Barrier::wait() when all tasks have called it.
Mutex	An async mutex.
MutexGuard	A guard that releases the mutex when dropped.
MutexGuardArc	An owned guard that releases the mutex when dropped.
RwLock	An async reader-writer lock.
RwLockReadGuard	A guard that releases the read lock when dropped.
RwLockUpgradableReadGuard	A guard that releases the upgradable read lock when dropped.
RwLockWriteGuard	A guard that releases the write lock when dropped.
Semaphore	A counter for limiting the number of concurrent operations.
SemaphoreGuard	A guard that releases the acquired permit.
SemaphoreGuardArc	An owned guard that releases the acquired permit.