Make file change debounce period configurable. References #10

src/JSPool/FileWatcher.cs

@@ -19,6 +19,11 @@ namespace JSPool
 	/// </summary>
 	public class FileWatcher : IFileWatcher, IDisposable
 	{
+		/// <summary>
+		/// Default value for <see cref="DebounceTimeout"/>.
+		/// </summary>
+		public static int DEFAULT_DEBOUNCE_TIMEOUT = 200;
+
 		/// <summary>
 		/// FileSystemWatcher that handles actually watching the path.
 		/// </summary>
@@ -31,16 +36,19 @@ public class FileWatcher : IFileWatcher, IDisposable
 		/// Timer for debouncing changes.
 		/// </summary>
 		protected Timer _timer;
-		/// <summary>
-		/// Time period to debounce file system changed events, in milliseconds.
-		/// </summary>
-		protected const int DEBOUNCE_TIMEOUT = 25;
 
 		/// <summary>
 		/// Occurs when any watched files have changed (including renames and deletions).
 		/// </summary>
 		public event EventHandler Changed;
 
+		/// <summary>
+		/// Gets or sets the time period to debounce file system changed events, in milliseconds.
+		/// This is useful to handle when multiple file change events happen in a short period of
+		/// time. JsPool will not reload/recycle the engines until this period elapses.
+		/// </summary>
+		public int DebounceTimeout { get; set; } = DEFAULT_DEBOUNCE_TIMEOUT;
+
 		/// <summary>
 		/// Gets or sets the path to watch.
 		/// </summary>
@@ -134,7 +142,7 @@ protected virtual void OnFileChanged(object sender, FileSystemEventArgs args)
 
 			Trace.WriteLine(string.Format("[JSPool] Watched file '{0}' changed", args.FullPath));
 			// Use a timer so multiple changes only result in a single reset.
-			_timer.Change(DEBOUNCE_TIMEOUT, Timeout.Infinite);
+			_timer.Change(DebounceTimeout, Timeout.Infinite);
 
 		}
 

src/JSPool/JsPool.cs

@@ -86,6 +86,7 @@ protected virtual void InitializeWatcher()
 			{
 				_fileWatcher = new FileWatcher
 				{
+					DebounceTimeout = _config.DebounceTimeout,
 					Path = _config.WatchPath,
 					Files = _config.WatchFiles,
 				};

src/JSPool/JsPoolConfig.cs

@@ -72,11 +72,19 @@ public class JsPoolConfig<T>
 		/// </summary>
 		public IEnumerable<string> WatchFiles { get; set; }
 
+		/// <summary>
+		/// Gets or sets the time period to debounce file system changed events, in milliseconds.
+		/// This is useful to handle when multiple file change events happen in a short period of
+		/// time. JsPool will not reload/recycle the engines until this period elapses.
+		/// </summary>
+		public int DebounceTimeout { get; set; }
+
 		/// <summary>
 		/// Creates a new JavaScript pool configuration. Default values will be set automatically.
 		/// </summary>
 		public JsPoolConfig()
 		{
+			DebounceTimeout = FileWatcher.DEFAULT_DEBOUNCE_TIMEOUT;
 			StartEngines = 10;
 			MaxEngines = 25;
 			MaxUsagesPerEngine = 100;