private void ReceiveHead(IAsyncResult ar)
{
try
{
int len = conn.EndReceive(ar);
if (len > 0)
{
currHeadIndex += len;
if (currHeadIndex < headLength)
{
conn.BeginReceive(headCache, currHeadIndex, headLength - currHeadIndex, SocketFlags.None
, new AsyncCallback(ReceiveHead), null);
}
else
{
bodyLength = ZNetConfig.isLittleEndian ? ZTool.ConvertToIntLittleEndian(headCache)
: ZTool.ConvertToIntBigEndian(headCache);
initBodyCache();
conn.BeginReceive(bodyCache, 0, bodyLength, SocketFlags.None
, new AsyncCallback(ReceiveBody), null);
}
}
else
{
ZLogger.Debug(" ZReceive 002:用户" + connectId + " 连接已断开", LogType.Warning);
Close();
}
}
catch (System.Exception ex)
{
ZLogger.Debug(" ZReceive 003:用户" + connectId + " 连接已断开", LogType.Warning);
Close();
}
}
/// <summary>
/// 头部长度加在数据前面
/// </summary>
/// <param name="data"></param>
/// <param name="IsLittleEndian"></param>
/// <returns></returns>
public static byte[] Pack(byte[] data, bool IsLittleEndian = true)
{
int length = data.Length;
byte[] head = IsLittleEndian ? ZTool.ConvertBytesLittleEndian(length) : ZTool.ConvertBytesBigEndian(length);
byte[] temp = new byte[data.Length + 4];
head.CopyTo(temp, 0);
data.CopyTo(temp, 4);
return(temp);
}
/// <summary>
/// 发送消息
/// </summary>
/// <param name="data"></param>
public void Send(Socket conn, System.Object obj, string connectId = null)
{
string datastr = null;
try
{
datastr = JsonConvert.SerializeObject(obj);
}
catch (System.Exception ex)
{
ZLogger.Debug("ZSend 001：传输数据无法被序列化为Json:" + ex.ToString(), LogType.Error);
ZLogger.Debug("停止发送本条消息！");
return;
}
byte[] data = ZNetConfig.encoding.GetBytes(datastr);
if (datastr == "\"\"")
{
ZLogger.Debug("ZSend 002：无法传递空消息:", LogType.Error);
ZLogger.Debug("停止发送本条消息！");
return;
}
else if (data.Length > ZNetConfig.MaxMessageSize)
{
ZLogger.Debug("ZSend 003: 单次发送消息过长", LogType.Error);
ZLogger.Debug("停止发送本条消息！");
return;
}
data = ZTool.Pack(data, ZNetConfig.isLittleEndian);
try
{
conn.BeginSend(data, 0, data.Length, SocketFlags.None,
new AsyncCallback((IAsyncResult ar) =>
{
conn.EndSend(ar);
OnEndSend?.Invoke(connectId);
}), null);
}
catch (System.Exception ex)
{
OnDisConnected?.Invoke(connectId); //关闭连接
conn?.Dispose();
conn?.Close();
conn = null;
ZLogger.Debug("ZSend 003: 用户：" + connectId + " 连接已经断开", LogType.Warning);
}
}