C#高性能大容量SOCKET并发完成端口例子

【实例截图】

【核心代码】

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace AsyncSocketServer
{
    public class ProtocolConst
    {        
        public static int InitBufferSize = 1024 * 4; //解析命令初始缓存大小        
        public static int ReceiveBufferSize = 1024 * 4; //IOCP接收数据缓存大小，设置过小会造成事件响应增多，设置过大会造成内存占用偏多
        public static int SocketTimeOutMS = 60 * 1000; //Socket超时设置为60秒
    }

    public enum ProtocolFlag
    {
        None = 0,
        SQL = 1, //SQL查询协议
        Upload = 2, //上传协议
        Download = 3, //下载协议
        RemoteStream = 4, //远程文件流协议
        Throughput = 5, //吞吐量测试协议
        Control = 8,
        LogOutput = 9,
    }

    public class ProtocolKey
    {
        public static string Request = "Request";
        public static string Response = "Response";
        public static string LeftBrackets = "[";
        public static string RightBrackets = "]";
        public static string ReturnWrap = "\r\n";
        public static string EqualSign = "=";
        public static string Command = "Command";
        public static string Code = "Code";
        public static string Message = "Message";
        public static string UserName = "UserName";
        public static string Password = "Password";
        public static string FileName = "FileName";
        public static string Item = "Item";
        public static string ParentDir = "ParentDir";
        public static string DirName = "DirName";
        public static char TextSeperator = (char)1;
        public static string FileSize = "FileSize";
        public static string PacketSize = "PacketSize";

        public static string FileExists = "FileExists";
        public static string OpenFile = "OpenFile";
        public static string SetSize = "SetSize";
        public static string GetSize = "GetSize";
        public static string SetPosition = "SetPosition";
        public static string GetPosition = "GetPosition";
        public static string Read = "Read";
        public static string Write = "Write";
        public static string Seek = "Seek";
        public static string CloseFile = "CloseFile";
        public static string Mode = "Mode";
        public static string Size = "Size";
        public static string Position = "Position";
        public static string Count = "Count";
        public static string Offset = "Offset";
        public static string SeekOrigin = "SeekOrigin";
        public static string Login = "Login";
        public static string Active = "Active";
        public static string GetClients = "GetClients";
        public static string Dir = "Dir";
        public static string CreateDir = "CreateDir";
        public static string DeleteDir = "DeleteDir";
        public static string FileList = "FileList";
        public static string DeleteFile = "DeleteFile";
        public static string Upload = "Upload";
        public static string Data = "Data";
        public static string Eof = "Eof";
        public static string Download = "Download";
        public static string SendFile = "SendFile";
        public static string CyclePacket = "CyclePacket";
    }

    public class ProtocolCode
    {
        public static int Success = 0x00000000;
        public static int NotExistCommand = Success   0x01;
        public static int PacketLengthError = Success   0x02;
        public static int PacketFormatError = Success   0x03;
        public static int UnknowError = Success   0x04;
        public static int CommandNoCompleted = Success   0x05;
        public static int ParameterError = Success   0x06;
        public static int UserOrPasswordError = Success   0x07;
        public static int UserHasLogined = Success   0x08;
        public static int FileNotExist = Success   0x09;
        public static int NotOpenFile = Success   0x0A;
        public static int FileIsInUse = Success   0x0B;

        public static int DirNotExist = 0x02000001;
        public static int CreateDirError = 0x02000002;
        public static int DeleteDirError = 0x02000003;
        public static int DeleteFileFailed = 0x02000007;
        public static int FileSizeError = 0x02000008;

        public static string GetErrorCodeString(int errorCode)
        {
            string errorString = null;
            if (errorCode == NotExistCommand) 
                errorString = "Not Exist Command";
            return errorString;
        }
    }

    public enum RemoteStreamSocketCommand
    {
        None = 0,
        FileExists = 1,
        OpenFile = 2,
        SetSize = 3,
        GetSize = 4,
        SetPosition = 5,
        GetPosition = 6,
        Read = 7,
        Write = 8,
        Seek = 9,
        CloseFile = 10,
    }

    public enum RemoteStreamMode
    {
        Read = 0,
        ReadWrite = 1,
    }

    public enum ControlSocketCommand
    {
        None = 0,
        Login = 1,
        Active = 2,
        GetClients = 3,
    }

    public enum UploadSocketCommand
    {
        None = 0,
        Login = 1,
        Active = 2,
        Dir = 3,
        CreateDir = 4,
        DeleteDir = 5,
        FileList = 6,
        DeleteFile = 7,
        Upload = 8,
        Data = 9,
        Eof = 10,
    }

    public enum DownloadSocketCommand
    {
        None = 0,
        Login = 1,
        Active = 2,
        Dir = 3,
        FileList = 4,
        Download = 5,
    }

    public enum SQLSocketCommand
    {
        None = 0,
        Login = 1,
        Active = 2,
        SQLOpen = 3,
        SQLExec = 4,
        BeginTrans = 5,
        CommitTrans = 6,
        RollbackTrans = 7,
    }

    public enum ThroughputSocketCommand
    {
        None = 0,
        CyclePacket = 1,
    }
}