/// <summary>
/// Converts the <paramref name="paths"/> list into a byte array containing the amount of paths in the
/// <paramref name="paths"/> as a first <c>int</c>, and the unicode-converted list of paths after it.
/// </summary>
/// <param name="paths">List of paths to convert.</param>
/// <returns>
/// Byte array suitable to be used as a <c>FETCH_PATHS</c> data.
/// </returns>
private static byte[] GetWatchPathsData(IEnumerable <string> paths)
{
if (paths == null)
{
paths = new string[0];
}
// This will replace the Windows path roots with the device names.
string[] pathsArray = paths.ToArray();
// See the 'FETCH_PATHS' structure for more details.
List <byte> data = new List <byte>(BitConverter.GetBytes(pathsArray.Length));
// Convert strings to byte array.
foreach (string path in pathsArray)
{
data.AddRange(LazyCopyDriverClient.ConvertToDevicePath(path));
}
return(data.ToArray());
}
/// <summary>
/// Prevents a default instance of the <see cref="LazyCopyDriver"/> class from being created.
/// </summary>
private LazyCopyDriver()
{
// First, load the driver.
FltmcManager.Instance.LoadFilter(Settings.Default.DriverName);
// And connect to it.
this.driverClient = new LazyCopyDriverClient();
this.driverClient.OpenFileInUserModeHandler += this.OpenFileInUserModeHandler;
this.driverClient.CloseFileHandleHandler += this.CloseFileHandleHandler;
this.driverClient.FetchFileInUserModeHandler += this.FetchFileInUserModeHandler;
}
/// <summary>
/// Clears the list of paths to watch.
/// </summary>
/// <exception cref="InvalidOperationException">Client is not connected to the driver.</exception>
public void ClearWatchPaths()
{
this.ExecuteCommand(new DriverCommand(DriverCommandType.SetWatchPaths, LazyCopyDriverClient.GetWatchPathsData(null)));
}
/// <summary>
/// Sets the list of paths the driver should watch.
/// </summary>
/// <param name="paths">List of paths to watch and their report rates. Should be in DOS name format, for example: <c>\Device\HarddiskVolume1\Folder\</c></param>
/// <exception cref="InvalidOperationException">Client is not connected to the driver.</exception>
public void SetWatchPaths(string[] paths)
{
byte[] data = LazyCopyDriverClient.GetWatchPathsData(paths);
this.ExecuteCommand(new DriverCommand(DriverCommandType.SetWatchPaths, data));
}
