static void OnFileChangedEvent(object sender, FileChangedEventArgs e)
{
lock (Lock)
{
Console.WriteLine("OnFileChangedEvent :");
Console.WriteLine(" FilePath = {0}", e.FilePath);
Console.WriteLine();
}
}
/// <summary>
/// Template method to add default behaviour for the event
/// </summary>
private void OnFileChangedEvent(FileChangedEventArgs e)
{
// TODO: Implement default behaviour of OnFileChangedEvent
}
private void OnFileChanged(object sender, FileSystemEventArgs e)
{
var filePath = e.FullPath;
var isDirectory = Directory.Exists(filePath) && (File.GetAttributes(filePath) & FileAttributes.Directory) == FileAttributes.Directory;
if (isDirectory)
{
return;
}
if (!ShouldMonitorFile(filePath)) return;
lock (_filesRaisingEventsLock)
{
if (_filesChanging.ContainsKey(filePath))
{
_filesChanging[filePath].FileEventType = FileEventType.Changed;
Touch(filePath);
}
else
{
Push(filePath, FileEventType.Changed);
}
}
var fileChangedEventArgs = new FileChangedEventArgs(filePath, UserState);
RaiseAsynchronousOnFileChangedEvent(fileChangedEventArgs);
}
/// <summary>
/// Will raise the event on the current thread synchronously.
/// i.e. it will wait until all event handlers have processed the event.
/// </summary>
/// <param name="e">The state to be passed to the event.</param>
private void RaiseOnFileChangedEvent(FileChangedEventArgs e)
{
// Make a temporary copy of the event to avoid possibility of
// a race condition if the last subscriber unsubscribes
// immediately after the null check and before the event is raised.
FileChangedEventHandler eventHandler;
if (!Monitor.TryEnter(_fileChangedEventLock, _lockTimeout))
{
throw new ApplicationException("Timeout waiting for lock - RaiseOnFileChangedEvent");
}
try
{
eventHandler = _fileChangedEvent;
}
finally
{
Monitor.Exit(_fileChangedEventLock);
}
OnFileChangedEvent(e);
if (eventHandler != null)
{
eventHandler(this, e);
}
}
/// <summary>
/// Will raise the event on the calling thread synchronously.
/// i.e. it will wait until all event handlers have processed the event.
/// </summary>
/// <param name="state">The state to be passed to the event.</param>
private void RaiseCrossThreadOnFileChangedEvent(FileChangedEventArgs e)
{
_asyncOperation.SynchronizationContext.Send(new SendOrPostCallback(AsynchronousOnFileChangedEventRaised), e);
}
/// <summary>
/// Will raise the event on the calling thread asynchronously.
/// i.e. it will immediatly continue processing even though event
/// handlers have not processed the event yet.
/// </summary>
/// <param name="state">The state to be passed to the event.</param>
private void RaiseAsynchronousOnFileChangedEvent(FileChangedEventArgs e)
{
_asyncOperation.Post(new SendOrPostCallback(AsynchronousOnFileChangedEventRaised), e);
}