owncloud / core

	 * @param \OCP\Lock\ILockingProvider $provider

	 * @throws \OCP\Lock\LockedException

	 */

	public function acquireLock($path, $type, ILockingProvider $provider) {

		/** @var \OCP\Files\Storage $targetStorage */

		list($targetStorage, $targetInternalPath) = $this->resolvePath($path);

		$targetStorage->acquireLock($targetInternalPath, $type, $provider);

		// lock the parent folders of the owner when locking the share as recipient

		if ($path === '') {

			$sourcePath = $this->ownerView->getPath($this->share['file_source']);

			$this->ownerView->lockFile(dirname($sourcePath), ILockingProvider::LOCK_SHARED, true);

		}

	}

	/**

	 * @param string $path

	 * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE

	 * @param \OCP\Lock\ILockingProvider $provider

	 */

	public function releaseLock($path, $type, ILockingProvider $provider) {

		/** @var \OCP\Files\Storage $targetStorage */

		list($targetStorage, $targetInternalPath) = $this->resolvePath($path);

		$targetStorage->releaseLock($targetInternalPath, $type, $provider);

		// unlock the parent folders of the owner when unlocking the share as recipient

		if ($path === '') {

			$sourcePath = $this->ownerView->getPath($this->share['file_source']);

			$this->ownerView->unlockFile(dirname($sourcePath), ILockingProvider::LOCK_SHARED, true);

		}

	}

	/**

	 * @param string $path