static internal IDisposable Start( ActivityMonitor.DependentToken token, IActivityMonitor monitor, string fileName, int lineNumber )
{
string msg = token.FormatStartMessage();
if( token.Topic != null )
{
string currentTopic = token.Topic;
monitor.SetTopic( token.Topic, fileName, lineNumber );
var g = monitor.UnfilteredOpenGroup( ActivityMonitor.Tags.StartDependentActivity, LogLevel.Info, null, msg, monitor.NextLogTime(), null, fileName, lineNumber );
return Util.CreateDisposableAction( () => { g.Dispose(); monitor.SetTopic( currentTopic, fileName, lineNumber ); } );
}
return monitor.UnfilteredOpenGroup( ActivityMonitor.Tags.StartDependentActivity, LogLevel.Info, null, msg, monitor.NextLogTime(), null, fileName, lineNumber );
}
