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@ -1,8 +1,6 @@
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using MediaBrowser.Common.IO;
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using MediaBrowser.Common.ScheduledTasks;
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using MediaBrowser.Common.ScheduledTasks;
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using MediaBrowser.Controller.Configuration;
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using MediaBrowser.Controller.Configuration;
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using MediaBrowser.Controller.Entities;
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using MediaBrowser.Controller.Entities;
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using MediaBrowser.Controller.IO;
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using MediaBrowser.Controller.Library;
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using MediaBrowser.Controller.Library;
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using MediaBrowser.Model.Entities;
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using MediaBrowser.Model.Entities;
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using MediaBrowser.Model.Logging;
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using MediaBrowser.Model.Logging;
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@ -18,10 +16,7 @@ using System.Threading.Tasks;
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namespace MediaBrowser.Server.Implementations.IO
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namespace MediaBrowser.Server.Implementations.IO
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{
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{
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/// <summary>
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public class LibraryMonitor : ILibraryMonitor
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/// Class DirectoryWatchers
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/// </summary>
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public class DirectoryWatchers : IDirectoryWatchers
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{
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{
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/// <summary>
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/// <summary>
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/// The file system watchers
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/// The file system watchers
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@ -55,7 +50,7 @@ namespace MediaBrowser.Server.Implementations.IO
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/// Add the path to our temporary ignore list. Use when writing to a path within our listening scope.
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/// Add the path to our temporary ignore list. Use when writing to a path within our listening scope.
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/// </summary>
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/// </summary>
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/// <param name="path">The path.</param>
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/// <param name="path">The path.</param>
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public void TemporarilyIgnore(string path)
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private void TemporarilyIgnore(string path)
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{
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{
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_tempIgnoredPaths[path] = path;
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_tempIgnoredPaths[path] = path;
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}
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}
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@ -64,7 +59,7 @@ namespace MediaBrowser.Server.Implementations.IO
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/// Removes the temp ignore.
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/// Removes the temp ignore.
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/// </summary>
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/// </summary>
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/// <param name="path">The path.</param>
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/// <param name="path">The path.</param>
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public async void RemoveTempIgnore(string path)
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private async void RemoveTempIgnore(string path)
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{
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{
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// This is an arbitraty amount of time, but delay it because file system writes often trigger events after RemoveTempIgnore has been called.
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// This is an arbitraty amount of time, but delay it because file system writes often trigger events after RemoveTempIgnore has been called.
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// Seeing long delays in some situations, especially over the network.
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// Seeing long delays in some situations, especially over the network.
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@ -75,6 +70,21 @@ namespace MediaBrowser.Server.Implementations.IO
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_tempIgnoredPaths.TryRemove(path, out val);
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_tempIgnoredPaths.TryRemove(path, out val);
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}
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}
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public void ReportFileSystemChangeBeginning(string path)
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{
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TemporarilyIgnore(path);
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}
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public void ReportFileSystemChangeComplete(string path, bool refreshPath)
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{
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RemoveTempIgnore(path);
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if (refreshPath)
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{
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ReportFileSystemChanged(path);
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}
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}
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/// <summary>
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/// <summary>
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/// Gets or sets the logger.
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/// Gets or sets the logger.
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/// </summary>
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/// </summary>
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@ -90,12 +100,10 @@ namespace MediaBrowser.Server.Implementations.IO
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private ILibraryManager LibraryManager { get; set; }
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private ILibraryManager LibraryManager { get; set; }
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private IServerConfigurationManager ConfigurationManager { get; set; }
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private IServerConfigurationManager ConfigurationManager { get; set; }
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private readonly IFileSystem _fileSystem;
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/// <summary>
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/// <summary>
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/// Initializes a new instance of the <see cref="DirectoryWatchers" /> class.
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/// Initializes a new instance of the <see cref="LibraryMonitor" /> class.
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/// </summary>
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/// </summary>
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public DirectoryWatchers(ILogManager logManager, ITaskManager taskManager, ILibraryManager libraryManager, IServerConfigurationManager configurationManager, IFileSystem fileSystem)
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public LibraryMonitor(ILogManager logManager, ITaskManager taskManager, ILibraryManager libraryManager, IServerConfigurationManager configurationManager)
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{
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{
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if (taskManager == null)
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if (taskManager == null)
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{
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{
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@ -104,9 +112,8 @@ namespace MediaBrowser.Server.Implementations.IO
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LibraryManager = libraryManager;
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LibraryManager = libraryManager;
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TaskManager = taskManager;
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TaskManager = taskManager;
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Logger = logManager.GetLogger("DirectoryWatchers");
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Logger = logManager.GetLogger(GetType().Name);
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ConfigurationManager = configurationManager;
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ConfigurationManager = configurationManager;
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_fileSystem = fileSystem;
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SystemEvents.PowerModeChanged += SystemEvents_PowerModeChanged;
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SystemEvents.PowerModeChanged += SystemEvents_PowerModeChanged;
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}
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}
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@ -328,31 +335,25 @@ namespace MediaBrowser.Server.Implementations.IO
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{
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{
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OnWatcherChanged(e);
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OnWatcherChanged(e);
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}
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}
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catch (IOException ex)
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catch (Exception ex)
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{
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{
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Logger.ErrorException("IOException in watcher changed. Path: {0}", ex, e.FullPath);
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Logger.ErrorException("Exception in watcher changed. Path: {0}", ex, e.FullPath);
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}
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}
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}
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}
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private void OnWatcherChanged(FileSystemEventArgs e)
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private void OnWatcherChanged(FileSystemEventArgs e)
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{
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{
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var name = e.Name;
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Logger.Debug("Watcher sees change of type " + e.ChangeType + " to " + e.FullPath);
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// Ignore certain files
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ReportFileSystemChanged(e.FullPath);
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if (_alwaysIgnoreFiles.Contains(name, StringComparer.OrdinalIgnoreCase))
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}
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{
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return;
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}
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var nameFromFullPath = Path.GetFileName(e.FullPath);
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public void ReportFileSystemChanged(string path)
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// Ignore certain files
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{
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if (!string.IsNullOrEmpty(nameFromFullPath) && _alwaysIgnoreFiles.Contains(nameFromFullPath, StringComparer.OrdinalIgnoreCase))
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var filename = Path.GetFileName(path);
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{
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return;
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}
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// Ignore when someone manually creates a new folder
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// Ignore certain files
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if (e.ChangeType == WatcherChangeTypes.Created && name == "New folder")
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if (!string.IsNullOrEmpty(filename) && _alwaysIgnoreFiles.Contains(filename, StringComparer.OrdinalIgnoreCase))
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{
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{
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return;
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return;
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}
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}
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@ -362,17 +363,17 @@ namespace MediaBrowser.Server.Implementations.IO
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// If the parent of an ignored path has a change event, ignore that too
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// If the parent of an ignored path has a change event, ignore that too
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if (tempIgnorePaths.Any(i =>
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if (tempIgnorePaths.Any(i =>
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{
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{
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if (string.Equals(i, e.FullPath, StringComparison.OrdinalIgnoreCase))
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if (string.Equals(i, path, StringComparison.OrdinalIgnoreCase))
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{
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{
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Logger.Debug("Watcher ignoring change to {0}", e.FullPath);
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Logger.Debug("Ignoring change to {0}", path);
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return true;
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return true;
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}
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}
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// Go up a level
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// Go up a level
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var parent = Path.GetDirectoryName(i);
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var parent = Path.GetDirectoryName(i);
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if (string.Equals(parent, e.FullPath, StringComparison.OrdinalIgnoreCase))
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if (string.Equals(parent, path, StringComparison.OrdinalIgnoreCase))
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{
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{
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Logger.Debug("Watcher ignoring change to {0}", e.FullPath);
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Logger.Debug("Ignoring change to {0}", path);
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return true;
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return true;
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}
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}
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@ -380,17 +381,17 @@ namespace MediaBrowser.Server.Implementations.IO
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if (!string.IsNullOrEmpty(parent))
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if (!string.IsNullOrEmpty(parent))
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{
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{
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parent = Path.GetDirectoryName(i);
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parent = Path.GetDirectoryName(i);
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if (string.Equals(parent, e.FullPath, StringComparison.OrdinalIgnoreCase))
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if (string.Equals(parent, path, StringComparison.OrdinalIgnoreCase))
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{
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{
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Logger.Debug("Watcher ignoring change to {0}", e.FullPath);
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Logger.Debug("Ignoring change to {0}", path);
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return true;
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return true;
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}
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}
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}
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}
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if (i.StartsWith(e.FullPath, StringComparison.OrdinalIgnoreCase) ||
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if (i.StartsWith(path, StringComparison.OrdinalIgnoreCase) ||
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e.FullPath.StartsWith(i, StringComparison.OrdinalIgnoreCase))
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path.StartsWith(i, StringComparison.OrdinalIgnoreCase))
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{
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{
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Logger.Debug("Watcher ignoring change to {0}", e.FullPath);
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Logger.Debug("Ignoring change to {0}", path);
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return true;
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return true;
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}
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}
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@ -401,22 +402,19 @@ namespace MediaBrowser.Server.Implementations.IO
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return;
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return;
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}
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}
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Logger.Info("Watcher sees change of type " + e.ChangeType + " to " + e.FullPath);
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// Avoid implicitly captured closure
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var affectedPath = path;
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//Since we're watching created, deleted and renamed we always want the parent of the item to be the affected path
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_affectedPaths.AddOrUpdate(path, path, (key, oldValue) => affectedPath);
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var affectedPath = e.FullPath;
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_affectedPaths.AddOrUpdate(affectedPath, affectedPath, (key, oldValue) => affectedPath);
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lock (_timerLock)
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lock (_timerLock)
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{
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{
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if (_updateTimer == null)
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if (_updateTimer == null)
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{
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{
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_updateTimer = new Timer(TimerStopped, null, TimeSpan.FromSeconds(ConfigurationManager.Configuration.FileWatcherDelay), TimeSpan.FromMilliseconds(-1));
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_updateTimer = new Timer(TimerStopped, null, TimeSpan.FromSeconds(ConfigurationManager.Configuration.RealtimeWatcherDelay), TimeSpan.FromMilliseconds(-1));
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}
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}
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else
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else
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{
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{
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_updateTimer.Change(TimeSpan.FromSeconds(ConfigurationManager.Configuration.FileWatcherDelay), TimeSpan.FromMilliseconds(-1));
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_updateTimer.Change(TimeSpan.FromSeconds(ConfigurationManager.Configuration.RealtimeWatcherDelay), TimeSpan.FromMilliseconds(-1));
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}
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}
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}
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}
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}
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}
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@ -427,24 +425,9 @@ namespace MediaBrowser.Server.Implementations.IO
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/// <param name="stateInfo">The state info.</param>
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/// <param name="stateInfo">The state info.</param>
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private async void TimerStopped(object stateInfo)
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private async void TimerStopped(object stateInfo)
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{
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{
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lock (_timerLock)
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Logger.Debug("Timer stopped.");
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{
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// Extend the timer as long as any of the paths are still being written to.
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if (_affectedPaths.Any(p => IsFileLocked(p.Key)))
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{
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Logger.Info("Timer extended.");
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_updateTimer.Change(TimeSpan.FromSeconds(ConfigurationManager.Configuration.FileWatcherDelay), TimeSpan.FromMilliseconds(-1));
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return;
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}
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Logger.Info("Timer stopped.");
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DisposeTimer();
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if (_updateTimer != null)
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{
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_updateTimer.Dispose();
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_updateTimer = null;
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}
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}
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var paths = _affectedPaths.Keys.ToList();
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var paths = _affectedPaths.Keys.ToList();
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_affectedPaths.Clear();
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_affectedPaths.Clear();
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@ -452,59 +435,16 @@ namespace MediaBrowser.Server.Implementations.IO
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await ProcessPathChanges(paths).ConfigureAwait(false);
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await ProcessPathChanges(paths).ConfigureAwait(false);
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}
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}
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/// <summary>
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private void DisposeTimer()
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/// Try and determine if a file is locked
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/// This is not perfect, and is subject to race conditions, so I'd rather not make this a re-usable library method.
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/// </summary>
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/// <param name="path">The path.</param>
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/// <returns><c>true</c> if [is file locked] [the specified path]; otherwise, <c>false</c>.</returns>
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private bool IsFileLocked(string path)
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{
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{
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try
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lock (_timerLock)
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{
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var data = _fileSystem.GetFileSystemInfo(path);
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if (!data.Exists
|
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|| data.Attributes.HasFlag(FileAttributes.Directory)
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|| data.Attributes.HasFlag(FileAttributes.ReadOnly))
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{
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return false;
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}
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}
|
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|
catch (IOException)
|
|
|
|
|
|
|
|
{
|
|
|
|
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|
|
return false;
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}
|
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|
try
|
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|
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|
|
{
|
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|
|
{
|
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|
|
using (_fileSystem.GetFileStream(path, FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite))
|
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|
|
if (_updateTimer != null)
|
|
|
|
{
|
|
|
|
{
|
|
|
|
//file is not locked
|
|
|
|
_updateTimer.Dispose();
|
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|
|
return false;
|
|
|
|
_updateTimer = null;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
catch (DirectoryNotFoundException)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
catch (FileNotFoundException)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
catch (IOException)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
//the file is unavailable because it is:
|
|
|
|
|
|
|
|
//still being written to
|
|
|
|
|
|
|
|
//or being processed by another thread
|
|
|
|
|
|
|
|
//or does not exist (has already been processed)
|
|
|
|
|
|
|
|
Logger.Debug("{0} is locked.", path);
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
catch
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/// <summary>
|
|
|
|
/// <summary>
|
|
|
|
@ -599,14 +539,7 @@ namespace MediaBrowser.Server.Implementations.IO
|
|
|
|
watcher.Dispose();
|
|
|
|
watcher.Dispose();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
lock (_timerLock)
|
|
|
|
DisposeTimer();
|
|
|
|
{
|
|
|
|
|
|
|
|
if (_updateTimer != null)
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
_updateTimer.Dispose();
|
|
|
|
|
|
|
|
_updateTimer = null;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
_fileSystemWatchers.Clear();
|
|
|
|
_fileSystemWatchers.Clear();
|
|
|
|
_affectedPaths.Clear();
|
|
|
|
_affectedPaths.Clear();
|
Luke Pulverenti
11 years ago