void IAsyncStateMachine.MoveNext()
{
_acc++;
int innerTmpResult;
try
{
TaskAwaiter <int> awaiter;
if (this.State != State.Run)
{
Info.WhichThread("state not run", this._acc);
this._task = new Task <int>(() => StateMachineAsyncAwait.Sum(this.Args1, this.Args2));
this._task.Start();
awaiter = this._task.GetAwaiter();
if (awaiter.IsCompleted == false)
{
Info.WhichThread("awaiter is completed=true", this._acc);
this.State = State.Run;
this._taskAwaiter = awaiter;
GenerateStateMachine stateMachine = this;
this.AsyncTaskMethodBuilder.AwaitUnsafeOnCompleted(ref awaiter, ref stateMachine);
this._taskAwaiter.OnCompleted(this._action);
return;
}
}
else
{
Info.WhichThread("state run", this._acc);
awaiter = this._taskAwaiter;
this._taskAwaiter = new TaskAwaiter <int>();
this.State = State.BeforeRun;
}
this._result = awaiter.GetResult();
innerTmpResult = this._result;
}
catch (Exception ex)
{
this.State = State.End;
this.AsyncTaskMethodBuilder.SetException(ex);
return;
}
Info.WhichThread("state end", this._acc);
Console.WriteLine($"acc-{this._acc}");
this.State = State.End;
this.AsyncTaskMethodBuilder.SetResult(innerTmpResult);
}
public static Task <int> SumAsync(int args1, int args2)
{
GenerateStateMachine stateMachine = new GenerateStateMachine();
stateMachine.Args1 = args1;
stateMachine.Args2 = args2;
stateMachine.AsyncTaskMethodBuilder = AsyncTaskMethodBuilder <int> .Create();
stateMachine.State = State.BeforeRun;
stateMachine.AsyncTaskMethodBuilder.Start <GenerateStateMachine>(ref stateMachine);
return(stateMachine.AsyncTaskMethodBuilder.Task);
}