C#, Can I check on a lock without trying to acquire it?
- by Biff MaGriff
Hello,
I have a lock in my c# web app that prevents users from running the update script once it has started.
I was thinking I would put a notification in my master page to let the user know that the data isn't all there yet.
Currently I do my locking like so.
protected void butRefreshData_Click(object sender, EventArgs e)
{
Thread t = new Thread(new ParameterizedThreadStart(UpdateDatabase));
t.Start(this);
//sleep for a bit to ensure that javascript has a chance to get rendered
Thread.Sleep(100);
}
public static void UpdateDatabase(object con)
{
if (Monitor.TryEnter(myLock))
{
Updater.RepopulateDatabase();
Monitor.Exit(myLock);
}
else
{
Common.RegisterStartupScript(con, AlreadyLockedJavaScript);
}
}
And I do not want to do
if(Monitor.TryEnter(myLock))
Monitor.Exit(myLock);
else
//show processing labal
As I imagine there is a slight possibility that it might display the notification when it isn't actually running.
Is there an alternative I can use?
Edit:
Hi Everyone, thanks a lot for your suggestions! Unfortunately I couldn't quite get them to work...
However I combined the ideas on 2 answers and came up with my own solution.
