Sockets ConnectAsync阻塞UI线程
我有一个简单的WinRT应用程序,它将通过TCP与远程服务器通信 为此,我正在创建新的StreamSocket对象,并在单击适当的按钮后连接到远程服务器,如下所示:Sockets ConnectAsync阻塞UI线程,sockets,tcp,windows-runtime,block,async-await,Sockets,Tcp,Windows Runtime,Block,Async Await,我有一个简单的WinRT应用程序,它将通过TCP与远程服务器通信 为此,我正在创建新的StreamSocket对象,并在单击适当的按钮后连接到远程服务器,如下所示: private async void ConnectButtonClick(object sender, RoutedEventArgs e) { StreamSocket socket = new StreamSocket(); HostName host = new HostName("192.168.1.15"
private async void ConnectButtonClick(object sender, RoutedEventArgs e)
{
StreamSocket socket = new StreamSocket();
HostName host = new HostName("192.168.1.15");
await socket.ConnectAsync(host, "12121");
}
问题是这段代码阻塞了UI线程。我创建了简单的动画,使用屏幕上连续运行的MonoGame(两个移动的精灵),以检查UI是否被阻止
问题是,单击“连接”按钮后,动画会冻结一秒钟,因此我假设,连接到服务器是在UI线程中进行的
我应该把整个网络代码放在一个单独的线程中,还是这个异步/等待就足够了
我想实现一个循环,它将处理传入的数据(在ODDataReader的帮助下),如下所示:
private async void ReceiveLoop()
{
bool running = true;
while (running)
{
try
{
uint numStrBytes = await _reader.LoadAsync(BufferSize);
if (numStrBytes == 0)
{
Disconnect();
return;
}
string msg = _reader.ReadString(numStrBytes);
OnLog(string.Format("Received: {0}", msg));
OnDataReceived(msg);
}
catch (Exception exception)
{
OnLog("Receive failed with error: " + exception.Message);
Disconnect();
running = false;
}
}
}
Task.Run(
async () =>
{
StreamSocket socket = new StreamSocket();
HostName host = new HostName("192.168.1.15");
await socket.ConnectAsync(host, "12121");
});
将使用DataWriter中的StoreAsync发送数据
那么,我应该将这些函数放在单独的线程中吗?难道你不能在后台线程中尝试这样做,看看是否有帮助吗?大概是这样的:
private async void ReceiveLoop()
{
bool running = true;
while (running)
{
try
{
uint numStrBytes = await _reader.LoadAsync(BufferSize);
if (numStrBytes == 0)
{
Disconnect();
return;
}
string msg = _reader.ReadString(numStrBytes);
OnLog(string.Format("Received: {0}", msg));
OnDataReceived(msg);
}
catch (Exception exception)
{
OnLog("Receive failed with error: " + exception.Message);
Disconnect();
running = false;
}
}
}
Task.Run(
async () =>
{
StreamSocket socket = new StreamSocket();
HostName host = new HostName("192.168.1.15");
await socket.ConnectAsync(host, "12121");
});
对于普通.net库中的任何异步调用,一般规则是使用ConfigureAwait(false),这有助于防止出现您所看到的问题。例如,在WinRT的东西中: await socket.ConnectAsync(主机,“12121”).AsTask().ConfigureAwait(false) 这有一些很好的信息:
谢谢,使用这种方式不会阻塞UI线程(连接时不会冻结)。问题是,在发送/接收来自服务器的消息时,我仍然看到短暂冻结,但我认为这与我的另一个问题有关,我在这里问过:我认为这不是一个好的解决方案,因为它没有揭示根本问题。它掩盖了一切。