private void StopListening()
{
Logger.Info("Stopping listening on background apps activity...");
this.watcher.Stop();
this.watcher.Added -= this.WatcherOnAdded;
this.watcher.Removed -= this.WatcherOnRemoved;
this.watcher = null;
}
private void WatcherOnRemoved(AppDiagnosticInfoWatcher sender, AppDiagnosticInfoWatcherEventArgs args)
{
Logger.Trace($"The following app has been closed: {args.AppDiagnosticInfo.AppInfo.AppUserModelId}");
this.syncWriterLockSlim.EnterWriteLock();
try
{
var family = GetFamilyNameFromAppUserModelId(args.AppDiagnosticInfo.AppInfo.AppUserModelId);
if (!this.activeApps.Remove(family))
{
return;
}
Logger.Debug($"The following app family name has been closed: {args.AppDiagnosticInfo.AppInfo.AppUserModelId}");
this.Publish(new ActivePackageFullNames(this.activeApps));
}
finally
{
this.syncWriterLockSlim.ExitWriteLock();
}
}
public IList <string> GetCurrentlyRunningPackageNames()
{
Logger.Info("Getting the list of running apps...");
try
{
Logger.Trace("Entering upgradeable read lock...");
this.syncWriterLockSlim.EnterUpgradeableReadLock();
if (this.watcher == null)
{
Logger.Info("Starting listening on background apps activity...");
this.watcher = AppDiagnosticInfo.CreateWatcher();
this.watcher.Start();
}
else
{
this.watcher.Removed -= this.WatcherOnRemoved;
this.watcher.Added -= this.WatcherOnAdded;
}
if (this.activeApps != null)
{
return(this.activeApps.ToList());
}
Logger.Trace("Upgrading to write lock...");
this.syncWriterLockSlim.EnterWriteLock();
try
{
this.activeApps = new HashSet <string>(StringComparer.Ordinal);
foreach (var item in AppDiagnosticInfo.RequestInfoAsync().GetAwaiter().GetResult())
{
var family = GetFamilyNameFromAppUserModelId(item.AppInfo.AppUserModelId);
this.activeApps.Add(family);
}
Logger.Info($"Returning {this.activeApps.Count} apps running in the background...");
}
finally
{
this.syncWriterLockSlim.ExitWriteLock();
}
this.Publish(new ActivePackageFullNames(this.activeApps));
return(this.activeApps.ToList());
}
finally
{
if (this.watcher != null)
{
this.watcher.Removed += this.WatcherOnRemoved;
this.watcher.Added += this.WatcherOnAdded;
}
Logger.Trace("Exiting upgradeable read lock...");
this.syncWriterLockSlim.ExitUpgradeableReadLock();
}
}
