/// <summary>
/// 断开连接处理器
/// </summary>
/// <returns></returns>
private async Task InactiveHandler()
{
if (Interlocked.CompareExchange(ref isInactiveHandle, 1, 0) == 1)
{
return;
}
if (Status == ClientStatus.Closed || Status == ClientStatus.Connecting)
{
return;
}
Status = ClientStatus.PassiveClosed;
await BootstrapManager.CloseAsync(channelName);
logger.LogDebug($"Client inactive: close connect. Host={Host}, Port={Port}, LocalHost={LocalHost}, LocalPort={LocalPort}");
if (OnPassiveClosed != null)
{
await Task.Run(async() =>
{
await OnPassiveClosed(this);
isInactiveHandle = 0;
});
}
else
{
isInactiveHandle = 0;
}
}
/// <summary>
/// 关闭与服务端的连接
/// </summary>
/// <returns></returns>
public async Task CloseAsync()
{
Status = ClientStatus.Closed;
await BootstrapManager.CloseAsync(channelName);
logger.LogDebug($"Client closed. Host={Host}, Port={Port}, LocalHost={LocalHost}, LocalPort={LocalPort}");
}
/// <summary>
/// 执行与服务端连接
/// </summary>
/// <returns></returns>
private async Task DoConnectAsync()
{
if (Status == ClientStatus.Connected)
{
return;
}
if (Status == ClientStatus.Connecting)
{
logger.LogError($"Client connect has begun. Host={Host}, Port={Port}, LocalHost={LocalHost}, LocalPort={LocalPort}");
throw new InvalidOperationException($"Client connect has begun. Host={Host}, Port={Port}, LocalHost={LocalHost}, LocalPort={LocalPort}");
}
Status = ClientStatus.Connecting;
logger.LogDebug($"Client connect beginning. Host={Host}, Port={Port}, LocalHost={LocalHost}, LocalPort={LocalPort}");
try
{
var dotNettyClientInfo = new DotNettyClientInfo()
{
Host = Host,
Port = Port,
LocalHost = LocalHost,
LocalPort = LocalPort,
RequestManager = requestManager,
InactiveHandler = InactiveHandler,
GetLoginRequestDataHandler = GetLoginRequestData,
LoginResponseHandler = LoginResponse
};
//发起异步连接操作
var oldChannel = channel;
channel = await BootstrapManager.ConnectAsync(dotNettyClientInfo);
if (oldChannel != null)
{
await oldChannel.CloseAsync();
}
channelName = dotNettyClientInfo.ChannelName;
}
catch (Exception ex)
{
Status = ClientStatus.PassiveClosed;
logger.LogError(ex, $"Client connect has error. Host={Host}, Port={Port}, LocalHost={LocalHost}, LocalPort={LocalPort}, ExceptionMessage={ex.Message}, ExceptionStackTrace={ex.StackTrace}");
throw new NetworkException(Host, Port, ex.Message);
}
try
{
connectTcs = new TaskCompletionSource <object>();
connectCts = new CancellationTokenSource(3000); //登录验证响应超时
var token = connectCts.Token;
token.Register(() =>
{
try
{
connectTcs.SetException(new TimeoutException("Login response timeout."));
}
catch { }
});
await connectTcs.Task; //等待登录验证响应
}
catch (Exception ex)
{
await CloseAsync();
logger.LogError(ex, $"Client login has error. Host={Host}, Port={Port}, LocalHost={LocalHost}, LocalPort={LocalPort}, ExceptionMessage={ex.Message}, ExceptionStackTrace={ex.StackTrace}");
throw new NetworkException(Host, Port, ex.Message);
}
finally
{
connectCts = null;
connectTcs = null;
}
Status = ClientStatus.Connected;
logger.LogDebug($"Client connect finished. Host={Host}, Port={Port}, LocalHost={LocalHost}, LocalPort={LocalPort}");
}
static DotNettyClient()
{
BootstrapManager.Init();
}