MountService: Add API call for getting a list of pids currently using the specified mountpoint (c1b4ce93) · Commits · e / os / android_frameworks_base

core/java/android/os/storage/IMountService.aidl

+7 −1

Original line number	Diff line number	Diff line
		@@ -71,6 +71,12 @@ interface IMountService
		*/
		int formatVolume(String mountPoint);

		/**
		* Returns an array of pids with open files on
		* the specified path.
		*/
		int[] getStorageUsers(String path);

		/**
		* Gets the state of an volume via it's mountpoint.
		*/

+26 −0

Original line number	Diff line number	Diff line
		@@ -80,6 +80,7 @@ class MountService extends IMountService.Stub
		*/
		public static final int VolumeListResult = 110;
		public static final int AsecListResult = 111;
		public static final int StorageUsersListResult = 112;

		/*
		* 200 series - Requestion action has been successfully completed.
		@@ -795,6 +796,31 @@ class MountService extends IMountService.Stub
		return doFormatVolume(path);
		}

		public int []getStorageUsers(String path) {
		validatePermission(android.Manifest.permission.MOUNT_UNMOUNT_FILESYSTEMS);
		waitForReady();
		try {
		String[] r = mConnector.doListCommand(
		String.format("storage users %s", path),
		VoldResponseCode.StorageUsersListResult);
		// FMT: <pid> <process name>
		int[] data = new int[r.length];
		for (int i = 0; i < r.length; i++) {
		String []tok = r[i].split(" ");
		try {
		data[i] = Integer.parseInt(tok[0]);
		} catch (NumberFormatException nfe) {
		Log.e(TAG, String.format("Error parsing pid %s", tok[0]));
		return new int[0];
		}
		}
		return data;
		} catch (NativeDaemonConnectorException e) {
		Log.e(TAG, "Failed to retrieve storage users list", e);
		return new int[0];
		}
		}

		private void warnOnNotMounted() {
		if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
		Log.w(TAG, "getSecureContainerList() called when storage not mounted");