/// <summary>
/// 序列化消息包。
/// </summary>
/// <typeparam name="T">消息包类型。</typeparam>
/// <param name="packet">要序列化的消息包。</param>
/// <returns>序列化后的消息包字节流。</returns>
public byte[] Serialize <T>(T packet) where T : Packet
{
PacketBase packetImpl = packet as PacketBase;
if (packetImpl == null)
{
Log.Warning("Packet is invalid.");
return(null);
}
if (packetImpl.PacketType != PacketType.ClientToServer)
{
Log.Warning("Send packet invalid.");
return(null);
}
// 恐怖的 GCAlloc，这里是例子，不做优化
using (MemoryStream memoryStream = new MemoryStream())
{
CSPacketHeader packetHeader = new CSPacketHeader(packetImpl.PacketId);
Serializer.Serialize(memoryStream, packetHeader);
Serializer.SerializeWithLengthPrefix(memoryStream, packet, PrefixStyle.Fixed32);
return(memoryStream.ToArray());
}
}
/// <summary>
/// 序列化消息包。
/// </summary>
/// <typeparam name="T">消息包类型。</typeparam>
/// <param name="packet">要序列化的消息包。</param>
/// <param name="destination">要序列化的目标流。</param>
/// <returns>是否序列化成功。</returns>
public bool Serialize <T>(T packet, Stream destination) where T : Packet
{
PacketBase packetImpl = packet as PacketBase;
if (packetImpl == null)
{
Log.Warning("Packet is invalid.");
return(false);
}
if (packetImpl.PacketType != PacketType.ClientToServer)
{
Log.Warning("Send packet invalid.");
return(false);
}
m_CachedStream.SetLength(m_CachedStream.Capacity); // 此行防止 Array.Copy 的数据无法写入
m_CachedStream.Position = 0L;
CSPacketHeader packetHeader = ReferencePool.Acquire <CSPacketHeader>();
Serializer.Serialize(m_CachedStream, packetHeader);
ReferencePool.Release(packetHeader);
Serializer.SerializeWithLengthPrefix(m_CachedStream, packet, PrefixStyle.Fixed32);
ReferencePool.Release((IReference)packet);
m_CachedStream.WriteTo(destination);
return(true);
}
/// <summary>
/// 序列化消息包。
/// </summary>
/// <typeparam name="T">消息包类型。</typeparam>
/// <param name="packet">要序列化的消息包。</param>
public bool Serialize <T> (T packet, Stream destination) where T : Packet
{
PacketBase packetImpl = packet as PacketBase;
if (packetImpl == null)
{
Log.Warning("Packet is invalid.");
return(false);
}
if (packetImpl.PacketType != PacketType.ClientToServer)
{
Log.Warning("Send packet invalid.");
return(false);
}
/* 以下内容为木头本人做的改动,不知道是否有错误的地方(虽然它运行起来是正确的),希望大家能帮忙指正 */
// 因为头部消息有8字节长度，所以先跳过8字节
destination.Position = 8;
Serializer.SerializeWithLengthPrefix(destination, packet, PrefixStyle.Fixed32);
// 头部消息
CSPacketHeader packetHeader = ReferencePool.Acquire <CSPacketHeader>();
packetHeader.Id = packet.Id;
packetHeader.PacketLength = (int)destination.Length - 8; // 消息内容长度需要减去头部消息长度
destination.Position = 0;
Serializer.SerializeWithLengthPrefix(destination, packetHeader, PrefixStyle.Fixed32);
ReferencePool.Release(packetHeader);
return(true);
}
/// <summary>
/// 序列化消息包。
/// </summary>
/// <typeparam name="T">消息包类型。</typeparam>
/// <param name="packet">要序列化的消息包。</param>
/// <returns>序列化后的消息包字节流。</returns>
public byte[] Serialize <T> (T packet) where T : Packet
{
PacketBase packetImpl = packet as PacketBase;
if (packetImpl == null)
{
Log.Warning("Packet is invalid.");
return(null);
}
if (packetImpl.PacketType != PacketType.ClientToServer)
{
Log.Warning("Send packet invalid.");
return(null);
}
// 恐怖的 GCAlloc，这里是例子，不做优化(这句注释是框架作者写的,我本人并不懂GC什么的)
using (MemoryStream memoryStream = new MemoryStream()) {
/* 以下内容为木头本人做的改动,不知道是否有错误的地方(虽然它运行起来是正确的),希望大家能帮忙指正 */
// 因为头部消息有8字节长度，所以先跳过8字节
memoryStream.Position = 8;
Serializer.SerializeWithLengthPrefix(memoryStream, packet, PrefixStyle.Fixed32);
// 头部消息
CSPacketHeader packetHeader = ReferencePool.Acquire <CSPacketHeader> ();
packetHeader.Id = packet.Id;
packetHeader.PacketLength = (int)memoryStream.Length - 8; // 消息内容长度需要减去头部消息长度
memoryStream.Position = 0;
Serializer.SerializeWithLengthPrefix(memoryStream, packetHeader, PrefixStyle.Fixed32);
ReferencePool.Release(packetHeader);
return(memoryStream.ToArray());
}
}
