locker

type Locker interface {
	// Try tries to get the lock.
	// if the lock is locked, it will return an error.
	Try(ctx context.Context, fn func()) error

	// Until tries to get the lock until the timeout.
	// if the lock is locked, it will wait until the lock is released or the timeout is reached.
	Until(ctx context.Context, timeout time.Duration, fn func()) error

	// Get tries to get the lock.
	// if the lock is locked, it will return the owner of the lock or an error.
	Get(ctx context.Context) (Owner, error)

	// Release releases the locked owner.
	// if the owner is not the locked owner, it will return an error.
	Release(ctx context.Context, owner Owner) error

	// ForceRelease releases the lock forcibly.
	ForceRelease(ctx context.Context) error

	// LockedOwner returns the owner of the lock.
	LockedOwner(ctx context.Context) (Owner, error)
}

type NoopLocker struct{}

type Owner interface {
	// Name returns the name of the owner.
	Name() string

	// Release releases the lock.
	Release(ctx context.Context) error
}

type OwnerOption func(*owner)