slow watcher.StopWatching()

[cchicote]

Hi,
i'm working with your awesome FSWatcher, it's really efficient and reactive but when i call the watcher.StopWatching() method on instances watching directories with a lot of files (>10.000), it takes a lot of time to stop.
I'm also working with TPL so i tried to put the method watcher.StopWatching() in a parallel task but it still calls the methods i've linked to the watcher.
Do you know a faster way than the regular method to stop an instance of FSWatcher ?
Thanks a lot,
cchicote

[acken]

That is a bit odd. In first glance it should be fast but there may be a way it uses _abortCheck() in getSnapshot routine that has it passing through the entire snapshot anyway.

[cchicote]

Yes i see that you use Directory.GetFiles() which is a method that can be really slow with a large amount of files on a distant drive. Is the getSnapshot routine called frequently ?
Maybe i ask the watcher to stop while it's calling Directory.GetFiles() and that would explain the slowness of his abort

[cchicote]

Hey i got this piece of code:
Console.WriteLine("Stop watcher {0} {1}", cell.Name, DateTime.Now.ToString());
cell.watcher.StopWatching();
Console.WriteLine("Watcher stopped {0} {1}", cell.Name, DateTime.Now.ToString());

It's watching a directory with 20.070 files within 6.896 directories.

And this comes out:
Stop watcher Random_task3 15/03/2018 17:24:03
Watcher stopped Random_task3 15/03/2018 18:00:23

During this time, the methods that i gave to the watcher can still be triggered by a file modification inside the watched directory, which is a bit annoying.