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合理使用ArrayPool

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This commit is contained in:
sin365 2024-06-27 15:49:56 +08:00
parent c1a3650a95
commit 3036ef0e05
10 changed files with 71 additions and 218 deletions
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70
NetLib/HaoYueNet.ClientNetwork/IOCPMode/TcpSaeaClient.cs
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@ -1,4 +1,5 @@
//using HunterProtobufCore; //using HunterProtobufCore;
using System.Buffers;
using System.IO; using System.IO;
using System.Net; using System.Net;
using System.Net.Sockets; using System.Net.Sockets;
@ -364,90 +365,67 @@ namespace HaoYueNet.ClientNetwork.IOCPMode
{ {
try try
{ {
// check if the remote host closed the connection
AsyncUserToken token = (AsyncUserToken)e.UserToken; AsyncUserToken token = (AsyncUserToken)e.UserToken;
if (e.BytesTransferred > 0 && e.SocketError == SocketError.Success) if (e.BytesTransferred > 0 && e.SocketError == SocketError.Success)
{ {
//读取数据
//byte[] data = new byte[e.BytesTransferred];
//Array.Copy(e.Buffer, e.Offset, data, 0, e.BytesTransferred);
//lock (token.Buffer)
lock (token.memoryStream) lock (token.memoryStream)
{ {
//token.Buffer.AddRange(data);
token.memoryStream.Write(e.Buffer, e.Offset, e.BytesTransferred); token.memoryStream.Write(e.Buffer, e.Offset, e.BytesTransferred);
do do
{ {
//如果包头不完整 if (token.memoryStream.Length < 4) break;//包头不完整，继续接收
//if (token.Buffer.Count < 4)
if (token.memoryStream.Length < 4)
break;
////判断包的长度
//byte[] lenBytes = token.Buffer.GetRange(0, 4).ToArray();
//int packageLen = BitConverter.ToInt32(lenBytes, 0) - 4;
//if (packageLen > token.Buffer.Count - 4)
//{ //长度不够时,退出循环,让程序继续接收
// break;
//}
long FristBeginPos = token.memoryStream.Position; long FristBeginPos = token.memoryStream.Position;
byte[] lenBytes = new byte[4];
//从Byte池申请
byte[] lenBytes = ArrayPool<byte>.Shared.Rent(4);
token.memoryStream.Seek(0, SeekOrigin.Begin); token.memoryStream.Seek(0, SeekOrigin.Begin);
token.memoryStream.Read(lenBytes, 0, 4); token.memoryStream.Read(lenBytes, 0, 4);
int packageLen = BitConverter.ToInt32(lenBytes, 0) - 4; int packageLen = BitConverter.ToInt32(lenBytes, 0) - 4;
//归还byte[]
ArrayPool<byte>.Shared.Return(lenBytes);
if (packageLen > token.memoryStream.Length - 4) if (packageLen > token.memoryStream.Length - 4)
{ {
token.memoryStream.Seek(FristBeginPos, SeekOrigin.Begin); token.memoryStream.Seek(FristBeginPos, SeekOrigin.Begin);
//长度不够时,退出循环,让程序继续接收 break;//长度不够时,退出循环,让程序继续接收
break;
} }
////包够长时,则提取出来,交给后面的程序去处理 //申请byte池 一定要记得回收!!
//byte[] rev = token.Buffer.GetRange(4, packageLen).ToArray(); byte[] rev_fromArrayPool = ArrayPool<byte>.Shared.Rent(packageLen);
byte[] rev = new byte[packageLen];
token.memoryStream.Seek(4, SeekOrigin.Begin); token.memoryStream.Seek(4, SeekOrigin.Begin);
token.memoryStream.Read(rev, 0, packageLen); token.memoryStream.Read(rev_fromArrayPool, 0, packageLen);
//从数据池中移除这组数据
//lock (token.Buffer)
//{
// token.Buffer.RemoveRange(0, packageLen + 4);
//}
token.memoryStream.Seek(FristBeginPos, SeekOrigin.Begin); token.memoryStream.Seek(FristBeginPos, SeekOrigin.Begin);
//从数据池中移除这组数据 //从数据池中移除这组数据
lock (token.memoryStream) lock (token.memoryStream)
{ {
//token.memoryStream.Position = 0;
//token.memoryStream.SetLength(0);
int numberOfBytesToRemove = packageLen + 4; int numberOfBytesToRemove = packageLen + 4;
byte[] buf = token.memoryStream.GetBuffer(); byte[] buf = token.memoryStream.GetBuffer();
Buffer.BlockCopy(buf, numberOfBytesToRemove, buf, 0, (int)token.memoryStream.Length - numberOfBytesToRemove); Buffer.BlockCopy(buf, numberOfBytesToRemove, buf, 0, (int)token.memoryStream.Length - numberOfBytesToRemove);
token.memoryStream.SetLength(token.memoryStream.Length - numberOfBytesToRemove); token.memoryStream.SetLength(token.memoryStream.Length - numberOfBytesToRemove);
} }
DataCallBackReady(token, rev); //用Span内存切片，因为来自ArrayPool的byte长度，可能大于本身申请的长度
Span<byte> rev_span = rev_fromArrayPool;
rev_span = rev_span.Slice(0, packageLen);
DataCallBackReady(token, rev_span);
//这里API处理完后,并没有返回结果,当然结果是要返回的,却不是在这里, 这里的代码只管接收. //回收（这里依赖DataCallBackReady中，有一次数据拷贝，这个后续还要进一步精进性能优化，否则不能在这里回收，否则影响业务层）
//若要返回结果,可在API处理中调用此类对象的SendMessage方法,统一打包发送.不要被微软的示例给迷惑了. ArrayPool<byte>.Shared.Return(rev_fromArrayPool);
//} while (token.Buffer.Count > 4);
} while (token.memoryStream.Length > 4); } while (token.memoryStream.Length > 4);
} }
//继续接收. 为什么要这么写,请看Socket.ReceiveAsync方法的说明 //如果返回为False则代表此刻已经完成，不必等待完成端口回调，则直接调用ProcessReceive
if (!token.Socket.ReceiveAsync(e)) if (!token.Socket.ReceiveAsync(e))
{ this.ProcessReceive(e);
ProcessReceive(e);
}
} }
else else
{ {
//尝试性，清理数据 //清理数据
token.memoryStream.SetLength(0); token.memoryStream.SetLength(0);
token.memoryStream.Seek(0, SeekOrigin.Begin); token.memoryStream.Seek(0, SeekOrigin.Begin);
CloseClientSocket(e); CloseClientSocket(e);
} }
} }
@ -642,7 +620,7 @@ namespace HaoYueNet.ClientNetwork.IOCPMode
#endregion #endregion
#region 处理前预备 #region 处理前预备
private void DataCallBackReady(AsyncUserToken sk, byte[] data) private void DataCallBackReady(AsyncUserToken sk, Span<byte> data)
{ {
//增加接收计数 //增加接收计数
sk.RevIndex = MaxRevIndexNum; sk.RevIndex = MaxRevIndexNum;

19
NetLib/HaoYueNet.ClientNetwork/NetworkHelperCore.cs
View File

@ -257,8 +257,8 @@ namespace HaoYueNet.ClientNetwork
OnReceiveData(CmdID, Error, resultdata); OnReceiveData(CmdID, Error, resultdata);
} }
MemoryStream reciveMemoryStream = new MemoryStream();//开辟一个内存流 MemoryStream reciveMemoryStream = new MemoryStream();//开辟一个反复使用的内存流
byte[] reciveBuffer = new byte[1024 * 1024 * 2]; byte[] reciveBuffer = new byte[1024 * 1024 * 2];//开辟一个反复使用的byte[]
private void Recive(object o) private void Recive(object o)
{ {
var client = o as Socket; var client = o as Socket;
@ -312,12 +312,6 @@ namespace HaoYueNet.ClientNetwork
//↓↓↓↓↓↓↓↓ ↓↓↓ //↓↓↓↓↓↓↓↓ ↓↓↓
if (getData.Length - StartIndex < HeadLength || HeadLength == -1) if (getData.Length - StartIndex < HeadLength || HeadLength == -1)
{ {
/* 一种清空流的方式
memoryStream.Close();//关闭内存流
memoryStream.Dispose();//释放内存资源
memoryStream = new MemoryStream();//创建新的内存流
*/
//流复用的方式 不用重新new申请 //流复用的方式 不用重新new申请
reciveMemoryStream.Position = 0; reciveMemoryStream.Position = 0;
reciveMemoryStream.SetLength(0); reciveMemoryStream.SetLength(0);
@ -327,16 +321,7 @@ namespace HaoYueNet.ClientNetwork
} }
else else
{ {
//把头去掉，就可以吃了，蛋白质是牛肉的六倍
//DataCallBackReady(getData.Skip(StartIndex+4).Take(HeadLength-4).ToArray());
int CoreLenght = HeadLength - 4; int CoreLenght = HeadLength - 4;
//改为Array.Copy 提升效率
//byte[] retData = new byte[CoreLenght];
//Array.Copy(getData, StartIndex + 4, retData, 0, CoreLenght);
//DataCallBackReady(retData);
//用Span //用Span
Span<byte> getData_span = getData; Span<byte> getData_span = getData;
getData_span = getData_span.Slice(StartIndex + 4, CoreLenght); getData_span = getData_span.Slice(StartIndex + 4, CoreLenght);

40
NetLib/HaoYueNet.ClientNetwork/NetworkHelperP2PCore.cs
View File

@ -182,24 +182,6 @@ namespace HaoYueNet.ClientNetwork
/// </summary> /// </summary>
public event delegate_str OnLogOut; public event delegate_str OnLogOut;
///// <summary>
///// 用于调用者回调的虚函数
///// </summary>
///// <param name="data"></param>
//public virtual void DataCallBack(int CMDID,int ERRCODE,byte[] data)
//{
//}
///// <summary>
///// 断开连接
///// </summary>
///// <param name="sk"></param>
//public virtual void OnClose()
//{
//}
/// <summary> /// <summary>
/// 做好处理的连接管理 /// 做好处理的连接管理
/// </summary> /// </summary>
@ -236,16 +218,12 @@ namespace HaoYueNet.ClientNetwork
return; return;
} }
/*
HunterNet_S2C _c2s = DeSerizlize<HunterNet_S2C>(data);
OnDataCallBack(_c2s.HunterNetCoreCmdID, _c2s.HunterNetCoreERRORCode, _c2s.HunterNetCoreData.ToArray());
*/
HunterNet_S2C.AnalysisPkgData(data, out ushort CmdID, out ushort Error, out byte[] resultdata); HunterNet_S2C.AnalysisPkgData(data, out ushort CmdID, out ushort Error, out byte[] resultdata);
OnDataCallBack(CmdID, Error, resultdata); OnDataCallBack(CmdID, Error, resultdata);
} }
MemoryStream reciveMemoryStream = new MemoryStream();//开辟一个内存流 MemoryStream reciveMemoryStream = new MemoryStream();//开辟一个反复使用的内存流
byte[] reciveBuffer = new byte[1024 * 1024 * 2]; byte[] reciveBuffer = new byte[1024 * 1024 * 2];//开辟一个反复使用的byte[]
private void Recive(object o) private void Recive(object o)
{ {
var client = o as Socket; var client = o as Socket;
@ -299,12 +277,6 @@ namespace HaoYueNet.ClientNetwork
//↓↓↓↓↓↓↓↓ ↓↓↓ //↓↓↓↓↓↓↓↓ ↓↓↓
if (getData.Length - StartIndex < HeadLength || HeadLength == -1) if (getData.Length - StartIndex < HeadLength || HeadLength == -1)
{ {
/* 一种清空流的方式
memoryStream.Close();//关闭内存流
memoryStream.Dispose();//释放内存资源
memoryStream = new MemoryStream();//创建新的内存流
*/
//流复用的方式 不用重新new申请 //流复用的方式 不用重新new申请
reciveMemoryStream.Position = 0; reciveMemoryStream.Position = 0;
reciveMemoryStream.SetLength(0); reciveMemoryStream.SetLength(0);
@ -314,16 +286,8 @@ namespace HaoYueNet.ClientNetwork
} }
else else
{ {
//把头去掉，就可以吃了，蛋白质是牛肉的六倍
//DataCallBackReady(getData.Skip(StartIndex+4).Take(HeadLength-4).ToArray());
int CoreLenght = HeadLength - 4; int CoreLenght = HeadLength - 4;
//改为Array.Copy 提升效率
//byte[] retData = new byte[CoreLenght];
//Array.Copy(getData, StartIndex + 4, retData, 0, CoreLenght);
//DataCallBackReady(retData);
//用Span //用Span
Span<byte> getData_span = getData; Span<byte> getData_span = getData;
getData_span = getData_span.Slice(StartIndex + 4, CoreLenght); getData_span = getData_span.Slice(StartIndex + 4, CoreLenght);

18
NetLib/HaoYueNet.ClientNetwork/OtherMode/NetworkHelperCore_ListenerMode.cs
View File

@ -1,4 +1,5 @@
using System.Net; using System.Buffers;
using System.Net;
using System.Net.Sockets; using System.Net.Sockets;
using static HaoYueNet.ClientNetwork.BaseData; using static HaoYueNet.ClientNetwork.BaseData;
@ -190,17 +191,20 @@ namespace HaoYueNet.ClientNetwork.OtherMode
} }
MemoryStream reciveMemoryStream = new MemoryStream();//开辟一个内存流 MemoryStream reciveMemoryStream = new MemoryStream();//开辟一个内存流
byte[] reciveBuffer = new byte[1024 * 1024 * 2]; //byte[] reciveBuffer = new byte[1024 * 1024 * 2];
private void Recive(object o) private void Recive(object o)
{ {
var client = o as Socket; var client = o as Socket;
while (true) while (true)
{ {
//申请byte池 一定要记得回收!!
byte[] rev_fromArrayPool = ArrayPool<byte>.Shared.Rent(1024 * 1024 * 2);
int effective = 0; int effective = 0;
try try
{ {
effective = client.Receive(reciveBuffer); effective = client.Receive(rev_fromArrayPool);
if (effective == 0)//为0表示已经断开连接，放到后面处理 if (effective == 0)//为0表示已经断开连接，放到后面处理
{ {
//清理数据 //清理数据
@ -208,6 +212,8 @@ namespace HaoYueNet.ClientNetwork.OtherMode
reciveMemoryStream.Seek(0, SeekOrigin.Begin); reciveMemoryStream.Seek(0, SeekOrigin.Begin);
//远程主机强迫关闭了一个现有的连接 //远程主机强迫关闭了一个现有的连接
OnCloseReady(client); OnCloseReady(client);
//回收
ArrayPool<byte>.Shared.Return(rev_fromArrayPool);
return; return;
} }
} }
@ -223,7 +229,11 @@ namespace HaoYueNet.ClientNetwork.OtherMode
//断开连接 //断开连接
} }
reciveMemoryStream.Write(reciveBuffer, 0, effective);//将接受到的数据写入内存流中 reciveMemoryStream.Write(rev_fromArrayPool, 0, effective);//将接受到的数据写入内存流中
//回收
ArrayPool<byte>.Shared.Return(rev_fromArrayPool);
DataCallBackReady(client, reciveMemoryStream.ToArray()); DataCallBackReady(client, reciveMemoryStream.ToArray());
//流复用的方式 不用重新new申请 //流复用的方式 不用重新new申请
reciveMemoryStream.Position = 0; reciveMemoryStream.Position = 0;

4
NetLib/HaoYueNet.ClientNetwork/OtherMode/NetworkHelperCore_SourceMode.cs
View File

@ -192,8 +192,8 @@ namespace HaoYueNet.ClientNetwork.OtherMode
OnReceiveData(data); OnReceiveData(data);
} }
MemoryStream reciveMemoryStream = new MemoryStream();//开辟一个内存流 MemoryStream reciveMemoryStream = new MemoryStream();//开辟一个反复使用的内存流
byte[] reciveBuffer = new byte[1024 * 1024 * 2]; byte[] reciveBuffer = new byte[1024 * 1024 * 2];//开辟一个反复使用的byte[]
private void Recive(object o) private void Recive(object o)
{ {
var client = o as Socket; var client = o as Socket;

3
NetLib/HaoYueNet.ServerNetwork/BaseData.cs
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@ -1,4 +1,5 @@
using System.Net.Sockets; using System.Net.Sockets;
using System.Runtime.InteropServices;
namespace HaoYueNet.ServerNetwork namespace HaoYueNet.ServerNetwork
{ {
@ -142,7 +143,7 @@ namespace HaoYueNet.ServerNetwork
return BufferData; return BufferData;
} }
public static void AnalysisPkgData(Span<byte> srcdata, out UInt16 CmdID, out byte[] data) public static void AnalysisPkgData(Span<byte> srcdata,out UInt16 CmdID, out byte[] data)
{ {
//data = new byte[srcdata.Length - 2]; //data = new byte[srcdata.Length - 2];
//CmdID = BitConverter.ToUInt16(srcdata, 0); //CmdID = BitConverter.ToUInt16(srcdata, 0);

35
NetLib/HaoYueNet.ServerNetwork/NetWork/ArrayPoolManager.cs
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@ -1,35 +0,0 @@
using System;
using System.Buffers;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace HaoYueNet.ServerNetwork.NetWork
{
public static class ArrayPoolManager
{
static ArrayPool<byte> instance = ArrayPool<byte>.Shared;
/// <summary>
/// 租用指定大小byte数组
/// </summary>
/// <param name="lenght"></param>
/// <returns></returns>
public static byte[] RentByteArr(int lenght)
{
return instance.Rent(lenght);
}
/// <summary>
/// 将数组归还给池
/// </summary>
/// <param name="lenght"></param>
/// <returns></returns>
public static void ReturnByteArr(byte[] byteArr)
{
instance.Return(byteArr);
}
}
}

19
NetLib/HaoYueNet.ServerNetwork/NetWork/SourceMode/TcpSaeaServer_SourceMode.cs
View File

@ -373,51 +373,32 @@ namespace HaoYueNet.ServerNetwork
{ {
try try
{ {
// check if the remote host closed the connection
AsyncUserToken token = (AsyncUserToken)e.UserToken; AsyncUserToken token = (AsyncUserToken)e.UserToken;
if (e.BytesTransferred > 0 && e.SocketError == SocketError.Success) if (e.BytesTransferred > 0 && e.SocketError == SocketError.Success)
{ {
//读取数据 //读取数据
//byte[] data = new byte[e.BytesTransferred];
//Array.Copy(e.Buffer, e.Offset, data, 0, e.BytesTransferred);
//lock (token.Buffer)
lock(token.memoryStream) lock(token.memoryStream)
{ {
//token.Buffer.AddRange(data);
token.memoryStream.Write(e.Buffer, e.Offset, e.BytesTransferred); token.memoryStream.Write(e.Buffer, e.Offset, e.BytesTransferred);
do do
{ {
//DataCallBackReady(token, data);
////从数据池中移除这组数据
//lock (token.Buffer)
//{
// token.Buffer.Clear();
//}
DataCallBackReady(token, token.memoryStream.ToArray()); DataCallBackReady(token, token.memoryStream.ToArray());
//流复用的方式 不用重新new申请 //流复用的方式 不用重新new申请
token.memoryStream.Position = 0; token.memoryStream.Position = 0;
token.memoryStream.SetLength(0); token.memoryStream.SetLength(0);
//这里API处理完后,并没有返回结果,当然结果是要返回的,却不是在这里, 这里的代码只管接收.
//若要返回结果,可在API处理中调用此类对象的SendMessage方法,统一打包发送.不要被微软的示例给迷惑了.
} while (token.memoryStream.Length > 0); } while (token.memoryStream.Length > 0);
//} while (token.Buffer.Count > 4); //} while (token.Buffer.Count > 4);
} }
//继续接收. 为什么要这么写,请看Socket.ReceiveAsync方法的说明
if (!token.Socket.ReceiveAsync(e)) if (!token.Socket.ReceiveAsync(e))
{
this.ProcessReceive(e); this.ProcessReceive(e);
} }
}
else else
{ {
//清理数据 //清理数据
token.memoryStream.SetLength(0); token.memoryStream.SetLength(0);
token.memoryStream.Seek(0, SeekOrigin.Begin); token.memoryStream.Seek(0, SeekOrigin.Begin);
CloseClientSocket(e); CloseClientSocket(e);
} }
} }

72
NetLib/HaoYueNet.ServerNetwork/NetWork/TcpSaeaServer.cs
View File

@ -1,6 +1,5 @@
//using HunterProtobufCore; //using HunterProtobufCore;
using HaoYueNet.ServerNetwork.NetWork; using System.Buffers;
using System.IO;
using System.Net; using System.Net;
using System.Net.Sockets; using System.Net.Sockets;
using static HaoYueNet.ServerNetwork.BaseData; using static HaoYueNet.ServerNetwork.BaseData;
@ -375,96 +374,67 @@ namespace HaoYueNet.ServerNetwork
{ {
try try
{ {
// check if the remote host closed the connection
AsyncUserToken token = (AsyncUserToken)e.UserToken; AsyncUserToken token = (AsyncUserToken)e.UserToken;
if (e.BytesTransferred > 0 && e.SocketError == SocketError.Success) if (e.BytesTransferred > 0 && e.SocketError == SocketError.Success)
{ {
//读取数据
//byte[] data = new byte[e.BytesTransferred];
//Array.Copy(e.Buffer, e.Offset, data, 0, e.BytesTransferred);
//lock (token.Buffer)
lock(token.memoryStream) lock(token.memoryStream)
{ {
//token.Buffer.AddRange(data);
token.memoryStream.Write(e.Buffer, e.Offset, e.BytesTransferred); token.memoryStream.Write(e.Buffer, e.Offset, e.BytesTransferred);
do do
{ {
//如果包头不完整 if (token.memoryStream.Length < 4) break;//包头不完整，继续接收
//if (token.Buffer.Count < 4)
if (token.memoryStream.Length < 4)
break;
////判断包的长度
//byte[] lenBytes = token.Buffer.GetRange(0, 4).ToArray();
//int packageLen = BitConverter.ToInt32(lenBytes, 0) - 4;
//if (packageLen > token.Buffer.Count - 4)
//{ //长度不够时,退出循环,让程序继续接收
// break;
//}
long FristBeginPos = token.memoryStream.Position; long FristBeginPos = token.memoryStream.Position;
//byte[] lenBytes = new byte[4];
byte[] lenBytes = ArrayPoolManager.RentByteArr(4); //从Byte池申请
byte[] lenBytes = ArrayPool<byte>.Shared.Rent(4);
token.memoryStream.Seek(0, SeekOrigin.Begin); token.memoryStream.Seek(0, SeekOrigin.Begin);
token.memoryStream.Read(lenBytes, 0, 4); token.memoryStream.Read(lenBytes, 0, 4);
int packageLen = BitConverter.ToInt32(lenBytes, 0) - 4; int packageLen = BitConverter.ToInt32(lenBytes, 0) - 4;
ArrayPoolManager.ReturnByteArr(lenBytes);
//归还byte[]
ArrayPool<byte>.Shared.Return(lenBytes);
if (packageLen > token.memoryStream.Length - 4) if (packageLen > token.memoryStream.Length - 4)
{ {
token.memoryStream.Seek(FristBeginPos, SeekOrigin.Begin); token.memoryStream.Seek(FristBeginPos, SeekOrigin.Begin);
//长度不够时,退出循环,让程序继续接收 break;//长度不够时,退出循环,让程序继续接收
break;
} }
////包够长时,则提取出来,交给后面的程序去处理 //申请byte池 一定要记得回收!!
//byte[] rev = token.Buffer.GetRange(4, packageLen).ToArray(); byte[] rev_fromArrayPool = ArrayPool<byte>.Shared.Rent(packageLen);
byte[] rev = new byte[packageLen];
token.memoryStream.Seek(4, SeekOrigin.Begin); token.memoryStream.Seek(4, SeekOrigin.Begin);
token.memoryStream.Read(rev, 0, packageLen); token.memoryStream.Read(rev_fromArrayPool, 0, packageLen);
//从数据池中移除这组数据
//lock (token.Buffer)
//{
// token.Buffer.RemoveRange(0, packageLen + 4);
//}
token.memoryStream.Seek(FristBeginPos, SeekOrigin.Begin); token.memoryStream.Seek(FristBeginPos, SeekOrigin.Begin);
//从数据池中移除这组数据 //从数据池中移除这组数据
lock (token.memoryStream) lock (token.memoryStream)
{ {
//token.memoryStream.Position = 0;
//token.memoryStream.SetLength(0);
int numberOfBytesToRemove = packageLen + 4; int numberOfBytesToRemove = packageLen + 4;
byte[] buf = token.memoryStream.GetBuffer(); byte[] buf = token.memoryStream.GetBuffer();
Buffer.BlockCopy(buf, numberOfBytesToRemove, buf, 0, (int)token.memoryStream.Length - numberOfBytesToRemove); Buffer.BlockCopy(buf, numberOfBytesToRemove, buf, 0, (int)token.memoryStream.Length - numberOfBytesToRemove);
token.memoryStream.SetLength(token.memoryStream.Length - numberOfBytesToRemove); token.memoryStream.SetLength(token.memoryStream.Length - numberOfBytesToRemove);
} }
DataCallBackReady(token, rev); //用Span内存切片，因为来自ArrayPool的byte长度，可能大于本身申请的长度
Span<byte> rev_span = rev_fromArrayPool;
rev_span = rev_span.Slice(0, packageLen);
DataCallBackReady(token, rev_span);
//这里API处理完后,并没有返回结果,当然结果是要返回的,却不是在这里, 这里的代码只管接收. //回收（这里依赖DataCallBackReady中，有一次数据拷贝，这个后续还要进一步精进性能优化，否则不能在这里回收，否则影响业务层）
//若要返回结果,可在API处理中调用此类对象的SendMessage方法,统一打包发送.不要被微软的示例给迷惑了. ArrayPool<byte>.Shared.Return(rev_fromArrayPool);
//} while (token.Buffer.Count > 4);
} while (token.memoryStream.Length > 4); } while (token.memoryStream.Length > 4);
} }
//继续接收. 为什么要这么写,请看Socket.ReceiveAsync方法的说明 //如果返回为False则代表此刻已经完成，不必等待完成端口回调，则直接调用ProcessReceive
if (!token.Socket.ReceiveAsync(e)) if (!token.Socket.ReceiveAsync(e))
{
this.ProcessReceive(e); this.ProcessReceive(e);
} }
}
else else
{ {
//尝试性，清理数据 //清理数据
token.memoryStream.SetLength(0); token.memoryStream.SetLength(0);
token.memoryStream.Seek(0, SeekOrigin.Begin); token.memoryStream.Seek(0, SeekOrigin.Begin);
CloseClientSocket(e); CloseClientSocket(e);
} }
} }
@ -489,8 +459,6 @@ namespace HaoYueNet.ServerNetwork
} }
void IO_Completed(object sender, SocketAsyncEventArgs e) void IO_Completed(object sender, SocketAsyncEventArgs e)
{ {
// determine which type of operation just completed and call the associated handler
switch (e.LastOperation) switch (e.LastOperation)
{ {
case SocketAsyncOperation.Receive: case SocketAsyncOperation.Receive:
@ -661,7 +629,7 @@ namespace HaoYueNet.ServerNetwork
#endregion #endregion
#region 处理前预备 #region 处理前预备
private void DataCallBackReady(AsyncUserToken sk, byte[] data) private void DataCallBackReady(AsyncUserToken sk, Span<byte> data)
{ {
//增加接收计数 //增加接收计数
sk.RevIndex = MaxRevIndexNum; sk.RevIndex = MaxRevIndexNum;

5
NetLib_Standard2/HaoYueNet.ClientNetworkNet.Standard2/NetworkHelperCore.cs
View File

@ -260,8 +260,9 @@ namespace HaoYueNet.ClientNetwork.Standard2
OnReceiveData(CmdID, Error, resultdata); OnReceiveData(CmdID, Error, resultdata);
} }
MemoryStream reciveMemoryStream = new MemoryStream();//开辟一个内存流
byte[] reciveBuffer = new byte[1024 * 1024 * 2]; MemoryStream reciveMemoryStream = new MemoryStream();//开辟一个反复使用的内存流
byte[] reciveBuffer = new byte[1024 * 1024 * 2];//开辟一个反复使用的byte[]
private void Recive(object o) private void Recive(object o)
{ {
var client = o as Socket; var client = o as Socket;