/// <summary>
/// Initialize net component and connect to remote server.
/// </summary>
/// <param name="remoteAddress">The address of remote server to connect.</param>
/// <param name="remotePort">The port of remote server to connect.</param>
public Boolean Initialize(String remoteAddress, Int32 remotePort)
{
// 客户端处理IPV6的时候逻辑，需要用到
#if UNITY_5_3_OR_NEWER
if (Application.platform == RuntimePlatform.IPhonePlayer)
{
String newServerIp = "";
AddressFamily newAddressFamily = AddressFamily.InterNetwork;
getIPType(remoteAddress, remotePort.ToString(), out newServerIp, out newAddressFamily);
if (!string.IsNullOrEmpty(newServerIp))
{
remoteAddress = newServerIp;
}
}
#endif
// analyze the ip address and port info
IPAddress myIp;
if (IPAddress.TryParse(remoteAddress, out myIp))
{
//strMsg = String.Format("BuildPeer TryParse {0} success", remoteAddress);
//Debug.WriteLine(strMsg);
m_ipEndPoint = new IPEndPoint(myIp, remotePort);
}
else
{
//strMsg = String.Format("BuildPeer GetHostEntry {0} fail", remoteAddress);
//Debug.WriteLine(strMsg);
return(false);
}
// Do some cleanup if necessery
if (State != ConnectionState.None)
{
Close();
}
// Clean all messages of last connection
RecvQueue.Clear();
// Clean all event args of last connection
m_connEventArg = new SocketAsyncEventArgs();
m_receiveEventArg = new SocketAsyncEventArgs();
// init event args
m_connEventArg.Completed += new EventHandler <SocketAsyncEventArgs>(OnCompletedForConnect);
m_connEventArg.RemoteEndPoint = m_ipEndPoint;
m_receiveEventArg.Completed += new EventHandler <SocketAsyncEventArgs>(OnCompletedForReceive);
m_receiveEventArg.SetBuffer(new byte[ProtoConst.MAX_PACKAGE_LENGTH], 0, ProtoConst.MAX_PACKAGE_LENGTH);
// Change state
State = ConnectionState.Connecting;
// Create work resource
RecvCache = new MessageBlock((int)ConnectionConst.CACHE_MAX_BYTE);
try
{
StartConnectionWork();
}catch (Exception e)
{
Log.Error(e);
return(true);
}
return(true);
}
/// <summary>
/// Decodes the message.
/// </summary>
/// <returns>The message.</returns>
/// <param name="dataBlock">Data block.</param>
/// <param name="dataOffset">Data offset.</param>
/// <param name="dataLen">Data length.</param>
/// <param name="newMsg">New message.</param>
/// <returns>
/// != null : A protocol message
/// == null : No full message exist
/// Exception : ProtoException to indicate HACK stream
/// </returns>
public static Object DecodeMessage(MessageBlock rCache, out ushort msgId, out bool isRpc)
{
msgId = 0;
isRpc = false;
// get the message head's length
int headLength = sizeof(ushort) * 2;
// Not enough data for header
if (rCache.Length < headLength)
{
//Debug.WriteLine(String.Format("DecodeMessage Not enough data for header. rCache.Length={0} < headLength={1}", rCache.Length, headLength));
return(null);
}
// get message length
ushort pakFullLength = rCache.ReadUInt16();
// Bad stream
if (pakFullLength < headLength)
{
throw new ProtoException(string.Format("Hack stream, TotalLength={0}", pakFullLength));
}
int pakBodyLength = pakFullLength - headLength;
//Debug.WriteLine(String.Format("DecodeMessage Before rCache.Length={0} pakBodyLength={1} ", rCache.Length, pakBodyLength));
// Not enough data for body
// 注意这里需要考虑后面一个包头的长度
if (rCache.Length < pakBodyLength + sizeof(ushort))
{
// Move read ptr to back
// 此处只处理了UInt16长度的数据，所以回滚需要一致，不能使用headLength
rCache.ReadPtr(-(sizeof(ushort)));
//Debug.WriteLine(String.Format("DecodeMessage Not enough data for body rCache.Length={0} < pakBodyLength={1}", rCache.Length, pakBodyLength));
return(null);
}
// get message id field
ushort pakMessageIdField = rCache.ReadUInt16();
// get compressed tag
isRpc = pakMessageIdField >> (sizeof(ushort) * 8 - 1) == 1;
// get the protocol id
msgId = (ushort)(pakMessageIdField & 0x7FFF);
// deserialize message, we should decompress message body data if needed
Type pakType = OpcodeTypeDictionary.Instance.GetTypeById(msgId);
// Use ProtoBuf to deserialize message
//object ccMsg = MessageFactory.CreateMessage(pakType);//2019.7.17改为对象池
object ccMsg = Activator.CreateInstance(pakType);
//Debug.WriteLine(String.Format("DecodeMessage msgId={0} pakBodyLength={1} isCompressed={2} pakType={3}", msgId, pakBodyLength, isCompressed, pakType.ToString()));
try
{
using (MemoryStream readStream = rCache.GetStream(pakBodyLength))
{
//将消息序列化，根据所提供的序列化器进行序列化和反序列化
ProtobufPraserHelper.s_protobufPacker.DeserializeFrom(ccMsg, readStream);
}
}
catch (Exception ex)
{
throw new Exception(string.Format("msgId={0}, isRpc={1} pakBodyLength={2}",
msgId, isRpc, pakBodyLength), ex);
}
//Debug.WriteLine(String.Format("DecodeMessage rCacheInfo Length={0} WrPtr={1} RdPtr={2}", rCache.Length, rCache.WrPtr, rCache.RdPtr));
return(ccMsg);
}