public void AsyncCall(Control container, string statusText, int timeout, OneParameterHandler funcNeedAsync, object objPar, OneParameterHandler completedCallback)
{
m_Container = container;
m_FuncNeedAsync = funcNeedAsync;
m_CompletedCallBack = completedCallback;
m_Timeout = timeout < 0 ? -1 : timeout;
//Edit By Xkp
//异步调用函数的线程放到SplashForm中进行启动，避免在SplashForm起来之前函数已经返回
//现在新线程只会处理异步函数的调用和返回，不再处理和取消相关的逻辑
var thread = new Thread(AsyncProcessFuncThread);
m_PSplash = CreateSplashForm(m_CanCancel, statusText, thread, objPar);
DialogResult result = m_PSplash.ShowDialog(container);
m_PSplash.Close();
//如果返回结果是OK，则是从新线程返回的，如果是其他，则是从SplashForm返回
if (result != DialogResult.OK)
{
m_ThreadNoNeedRun = true;
var asyncCallResult = new AsyncCallResult();
asyncCallResult.CallException = new AsynCallUserAbortException();
m_CallResult = asyncCallResult;
InvokeCompletedCallback();
}
else
{
InvokeCompletedCallback();
}
}
private void AsyncProcessFuncThread(object objPar)
{
//如果线程起来之前，已经取消，则该线程不需要再执行
if (m_ThreadNoNeedRun)
{
return;
}
var asyncCallResult = new AsyncCallResult();
IAsyncResult result = m_FuncNeedAsync.BeginInvoke(objPar, null, null);
if (result.AsyncWaitHandle.WaitOne(m_Timeout))
{
try
{
object objRet = m_FuncNeedAsync.EndInvoke(result);
var tmpAsyncCallResult = objRet as AsyncCallResult;
if (tmpAsyncCallResult != null)
{
asyncCallResult.Output = tmpAsyncCallResult.Output;
if (tmpAsyncCallResult.CallException != null)
{
asyncCallResult.CallException = tmpAsyncCallResult.CallException;
}
else
{
asyncCallResult.Succeed = true;
}
}
else
{
asyncCallResult.Output = objRet;
asyncCallResult.Succeed = true;
}
}
catch (Exception e)
{
asyncCallResult.CallException = e;
asyncCallResult.Succeed = false;
}
}
else
{
asyncCallResult.CallException = new TimeoutException();
asyncCallResult.Succeed = false;
}
try
{
// m_Container may be closed and cause exception
if (m_Container != null && !m_Container.IsDisposed)
{
m_Container.Invoke(new OneParameterHandler(UICallBack), new object[] { asyncCallResult });
}
}
catch (Exception e)
{
Debug.WriteLine("### FuncInvokeThread error: " + e.Message);
}
}
