lock

type Locker interface {
	// Acquire acquires the lock.
	Acquire(ctx context.Context) error
	// TryAcquire tries to acquire the lock with an optional expiration.
	TryAcquire(ctx context.Context, expiration ...time.Duration) error
	// Release releases the lock.
	Release(ctx context.Context) error
}

type Maker interface {
	// Make creates a locker with the given name.
	Make(name string) Locker
	// Close closes the maker.
	Close() error
}

type Option struct {
	Once       bool          // Once reports whether the lock is acquired only once; by default it is acquired in blocking mode until it succeeds.
	Expiration time.Duration // Expiration is the lock expiration time.
}