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delegate2.cs
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delegate2.cs
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using System;
using System.Threading;
using System.Runtime.InteropServices;
class Test {
delegate int SimpleDelegate (int a);
static int cb_state = 0;
static int F (int a) {
Console.WriteLine ("Test.F from delegate: " + a);
throw new NotImplementedException ();
}
static void async_callback (IAsyncResult ar)
{
Console.WriteLine ("Async Callback " + ar.AsyncState);
cb_state = 1;
throw new NotImplementedException ();
}
static int Main () {
SimpleDelegate d = new SimpleDelegate (F);
AsyncCallback ac = new AsyncCallback (async_callback);
string state1 = "STATE1";
int res = 0;
IAsyncResult ar1 = d.BeginInvoke (1, ac, state1);
ar1.AsyncWaitHandle.WaitOne ();
try {
res = d.EndInvoke (ar1);
} catch (NotImplementedException) {
res = 1;
Console.WriteLine ("received exception ... OK");
}
while (cb_state == 0)
Thread.Sleep (0);
if (cb_state != 1)
return 1;
if (res != 1)
return 2;
return 0;
}
}