public void GetData_Pass_Object_Good()
{
var getter = new DataGetter();
var data = new DataHolder() { Multipler = 1 };
getter.NewData += (e) =>
{
// This simulates situation where something else changes public property
if (e > 2)
data.Multipler = 4;
Trace.WriteLine(Extensions.TraceMessage(e.ToString()));
};
getter.Ready += (s, e) =>
{
stopFlag.Set();
};
getter.GetData_Good(data);
stopFlag.WaitOne();
}
/// <summary>
/// Local copy of data is created, so changing data outside wont affect task
/// </summary>
/// <param name="data"></param>
public void GetData_Good(DataHolder data)
{
var getDataTask = new Action<object>((dataH) =>
{
for (int i = 0; i < 10; i++)
{
// Got data from somewhere
System.Threading.Thread.Sleep(100);
var handler = NewData;
if (handler != null)
{
handler(i * ((DataHolder)dataH).Multipler);
}
}
});
// Create local copy of passed object
var temp = new DataHolder() { Multipler = data.Multipler };
var getData = new Task(getDataTask, temp);
getData.ContinueWith(t => { SendReady(); });
getData.Start();
}
/// <summary>
/// No local copy is created
/// </summary>
public void GetData_No_ThreadSafe2(DataHolder data)
{
var getDataTask = new Action<object>((dataH) =>
{
for (int i = 0; i < 10; i++)
{
// Got data from somewhere
System.Threading.Thread.Sleep(100);
var handler = NewData;
if (handler != null)
{
handler(i * ((DataHolder)dataH).Multipler);
}
}
});
var getData = new Task(getDataTask, data);
getData.ContinueWith(t => { SendReady(); });
getData.Start();
}