/// <summary>
/// 断开与客户端的连接
/// </summary>
/// <param name="client"></param>
public void CloseClient(HCClient client)
{
try
{
foreach (SocketAsyncEventArgs item in m_clientPool)
{
if (((HCClient)item.UserToken).Equals(client))
{
CloseClientSocket(item);
break;
}
}
}
catch (Exception e)
{
ServerState?.Invoke(HCServerStateEnmu.RunningException, e.Message);
}
}
/// <summary>
/// 关闭socket客户端
/// </summary>
/// <param name="e"></param>
private void CloseClientSocket(SocketAsyncEventArgs e)
{
try
{
HCClient token = e.UserToken as HCClient;
if (m_clientPool.Contains(e))
{
//关闭与客户端连接的socket
try
{
token.Socket.Shutdown(SocketShutdown.Both);
}
catch (Exception)
{ //客户端已经关闭
}
ClientState?.Invoke(HCClientStateEnmu.Disconnected, token); //客户端断开连接
token.Socket.Close();
token.ClearCache();
//连接数递减
Interlocked.Decrement(ref m_numConnectedSockets);
//释放SocketAsyncEventArgs，以便其他客户端可以重用它们
m_readPool.Push(e);
m_clientPool.Remove(e);
m_maxNumberAcceptedClients.Release();
Console.WriteLine("客户端从服务器断开连接，当前服务器客户端连接数：{0}",
m_numConnectedSockets);
}
else
{
Console.WriteLine("客户端从服务器断开连接");
}
}
catch (Exception exp)
{
ServerState?.Invoke(HCServerStateEnmu.RunningException, exp.Message);
}
}
/// <summary>
/// 继续接收数据
/// </summary>
/// <param name="e"></param>
private void ContinueReceive(SocketAsyncEventArgs e)
{
try
{
if (e.SocketError == SocketError.Success)
{
HCClient token = (HCClient)e.UserToken;
//读取从客户端发送的下一个数据块
bool willRaiseEvent = token.Socket.ReceiveAsync(e);
if (!willRaiseEvent)
{
ProcessReceive(e);
}
}
else
{
CloseClientSocket(e);
}
}
catch (Exception exp)
{
ServerState?.Invoke(HCServerStateEnmu.RunningException, exp.Message);
}
}
/// <summary>
/// 异步接收操作，如果远程主机关闭了连接，则关闭socket
/// </summary>
/// <param name="e"></param>
private void ProcessReceive(SocketAsyncEventArgs e)
{
try
{
//检查远程主机是否关闭了连接
HCClient token = (HCClient)e.UserToken;
if (e.BytesTransferred > 0 && e.SocketError == SocketError.Success)
{
byte[] recdata = new byte[e.BytesTransferred];
Array.Copy(e.Buffer, e.Offset, recdata, 0, recdata.Length);
token.AnalysisData(recdata);
ContinueReceive(e);
}
else
{//远程主机关闭了连接
CloseClientSocket(e);
}
}
catch (Exception exp)
{
ServerState?.Invoke(HCServerStateEnmu.RunningException, exp.Message);
}
}
/// <summary>
/// 客户端运行状态
/// </summary>
/// <param name="state"></param>
/// <param name="client"></param>
private void HCServer_ClientState(HCClientStateEnmu state, HCClient client)
{
}
