Interface rateLimiter

Lock locks rw for writing. If the lock is already locked for reading or writing, Lock blocks until the lock is available.

RLock locks rw for reading.

It should not be used for recursive read locking; a blocked Lock call excludes new readers from acquiring the lock. See the documentation on the [RWMutex] type.

RLocker returns a [Locker] interface that implements the [Locker.Lock] and [Locker.Unlock] methods by calling rw.RLock and rw.RUnlock.

RUnlock undoes a single [RWMutex.RLock] call; it does not affect other simultaneous readers. It is a run-time error if rw is not locked for reading on entry to RUnlock.

TryLock tries to lock rw for writing and reports whether it succeeded.

Note that while correct uses of TryLock do exist, they are rare, and use of TryLock is often a sign of a deeper problem in a particular use of mutexes.

TryRLock tries to lock rw for reading and reports whether it succeeded.

Note that while correct uses of TryRLock do exist, they are rare, and use of TryRLock is often a sign of a deeper problem in a particular use of mutexes.

Unlock unlocks rw for writing. It is a run-time error if rw is not locked for writing on entry to Unlock.

As with Mutexes, a locked [RWMutex] is not associated with a particular goroutine. One goroutine may [RWMutex.RLock] ([RWMutex.Lock]) a RWMutex and then arrange for another goroutine to [RWMutex.RUnlock] ([RWMutex.Unlock]) it.