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C# MySqlStream.ReadPacket方法代码示例

本文整理汇总了C#中MySql.Data.MySqlClient.MySqlStream.ReadPacket方法的典型用法代码示例。如果您正苦于以下问题:C# MySqlStream.ReadPacket方法的具体用法?C# MySqlStream.ReadPacket怎么用?C# MySqlStream.ReadPacket使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在MySql.Data.MySqlClient.MySqlStream的用法示例。


在下文中一共展示了MySqlStream.ReadPacket方法的3个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: Open

        public void Open()
        {
            // connect to one of our specified hosts
            try
            {
                baseStream = StreamCreator.GetStream(Settings);
                //#if !CF && !RT
                //         if (Settings.IncludeSecurityAsserts)
                //            MySqlSecurityPermission.CreatePermissionSet(false).Assert();
                //#endif
            }
            catch (System.Security.SecurityException)
            {
                throw;
            }
            catch (Exception ex)
            {
                throw new MySqlException("Resources.UnableToConnectToHost",
                    (int)MySqlErrorCode.UnableToConnectToHost, ex);
            }
            if (baseStream == null)
                throw new MySqlException("Resources.UnableToConnectToHost",
                    (int)MySqlErrorCode.UnableToConnectToHost);

            int maxSinglePacket = 255 * 255 * 255;
            stream = new MySqlStream(baseStream, Encoding, false);

            stream.ResetTimeout((int)Settings.ConnectionTimeout * 1000);

            // read off the welcome packet and parse out it's values
            packet = stream.ReadPacket();
            int protocol = packet.ReadByte();
            string versionString = packet.ReadString();
            owner.isFabric = versionString.EndsWith("fabric", StringComparison.OrdinalIgnoreCase);
            version = DBVersion.Parse(versionString);
            if (!owner.isFabric && !version.isAtLeast(5, 0, 0))
                throw new NotSupportedException("Resources.ServerTooOld");

            threadId = packet.ReadInteger(4);

            byte[] seedPart1 = packet.ReadStringAsBytes();

            maxSinglePacket = (256 * 256 * 256) - 1;

            // read in Server capabilities if they are provided
            ClientFlags serverCaps = 0;
            if (packet.HasMoreData)
                serverCaps = (ClientFlags)packet.ReadInteger(2);

            /* New protocol with 16 bytes to describe server characteristics */
            owner.ConnectionCharSetIndex = (int)packet.ReadByte();

            serverStatus = (ServerStatusFlags)packet.ReadInteger(2);

            // Since 5.5, high bits of server caps are stored after status.
            // Previously, it was part of reserved always 0x00 13-byte filler.
            uint serverCapsHigh = (uint)packet.ReadInteger(2);
            serverCaps |= (ClientFlags)(serverCapsHigh << 16);

            packet.Position += 11;
            byte[] seedPart2 = packet.ReadStringAsBytes();
            encryptionSeed = new byte[seedPart1.Length + seedPart2.Length];
            seedPart1.CopyTo(encryptionSeed, 0);
            seedPart2.CopyTo(encryptionSeed, seedPart1.Length);

            string authenticationMethod = "";
            if ((serverCaps & ClientFlags.PLUGIN_AUTH) != 0)
            {
                authenticationMethod = packet.ReadString();
            }
            else
            {
                // Some MySql versions like 5.1, don't give name of plugin, default to native password.
                authenticationMethod = "mysql_native_password";
            }

            // based on our settings, set our connection flags
            SetConnectionFlags(serverCaps);

            packet.Clear();
            packet.WriteInteger((int)connectionFlags, 4);
            packet.WriteInteger(maxSinglePacket, 4);
            packet.WriteByte(33); //character set utf-8
            packet.Write(new byte[23]);

            #if !CF && !RT
            if ((serverCaps & ClientFlags.SSL) == 0)
            {
                if ((Settings.SslMode != MySqlSslMode.None)
                && (Settings.SslMode != MySqlSslMode.Preferred))
                {
                    // Client requires SSL connections.
                    string message = String.Format("Resources.NoServerSSLSupport",

                        Settings.Server);
                    throw new MySqlException(message);
                }
            }
            else if (Settings.SslMode != MySqlSslMode.None)
            {
//.........这里部分代码省略.........
开发者ID:yalunwang,项目名称:DotnetSpider,代码行数:101,代码来源:NativeDriver.cs

示例2: Open

    public void Open()
    {
      // connect to one of our specified hosts
      try
      {
#if !CF
        if (Settings.ConnectionProtocol == MySqlConnectionProtocol.SharedMemory)
        {
          SharedMemoryStream str = new SharedMemoryStream(Settings.SharedMemoryName);
          str.Open(Settings.ConnectionTimeout);
          baseStream = str;
        }
        else
        {
#endif
          string pipeName = Settings.PipeName;
          if (Settings.ConnectionProtocol != MySqlConnectionProtocol.NamedPipe)
            pipeName = null;
          StreamCreator sc = new StreamCreator(Settings.Server, Settings.Port, pipeName,
              Settings.Keepalive, this.Version);
#if !CF
         if (Settings.IncludeSecurityAsserts)
            MySqlSecurityPermission.CreatePermissionSet(false).Assert();
#endif
          baseStream = sc.GetStream(Settings.ConnectionTimeout);
#if !CF
        }
#endif
      }
      catch (System.Security.SecurityException)
      {
        throw;
      }
      catch (Exception ex)
      {
        throw new MySqlException(Resources.UnableToConnectToHost,
            (int)MySqlErrorCode.UnableToConnectToHost, ex);
      }
      if (baseStream == null)
        throw new MySqlException(Resources.UnableToConnectToHost,
            (int)MySqlErrorCode.UnableToConnectToHost);

      int maxSinglePacket = 255 * 255 * 255;
      stream = new MySqlStream(baseStream, Encoding, false);

      stream.ResetTimeout((int)Settings.ConnectionTimeout * 1000);

      // read off the welcome packet and parse out it's values
      packet = stream.ReadPacket();
      int protocol = packet.ReadByte();
      string versionString = packet.ReadString();
      version = DBVersion.Parse(versionString);
      if (!version.isAtLeast(5, 0, 0))
        throw new NotSupportedException(Resources.ServerTooOld);
      threadId = packet.ReadInteger(4);
      encryptionSeed = packet.ReadString();

      maxSinglePacket = (256 * 256 * 256) - 1;

      // read in Server capabilities if they are provided
      ClientFlags serverCaps = 0;
      if (packet.HasMoreData)
        serverCaps = (ClientFlags)packet.ReadInteger(2);

      /* New protocol with 16 bytes to describe server characteristics */
      owner.ConnectionCharSetIndex = (int)packet.ReadByte();

      serverStatus = (ServerStatusFlags)packet.ReadInteger(2);

      // Since 5.5, high bits of server caps are stored after status.
      // Previously, it was part of reserved always 0x00 13-byte filler.
      uint serverCapsHigh = (uint)packet.ReadInteger(2);
      serverCaps |= (ClientFlags)(serverCapsHigh << 16);

      packet.Position += 11;
      string seedPart2 = packet.ReadString();
      encryptionSeed += seedPart2;

      string authenticationMethod = "";
      if ((serverCaps & ClientFlags.PLUGIN_AUTH) != 0)
      {
        authenticationMethod = packet.ReadString();
      }
      else
      {
        // Some MySql versions like 5.1, don't give name of plugin, default to native password.
        authenticationMethod = "mysql_native_password";
      }

      // based on our settings, set our connection flags
      SetConnectionFlags(serverCaps);

      packet.Clear();
      packet.WriteInteger((int)connectionFlags, 4);

#if !CF
      if ((serverCaps & ClientFlags.SSL) == 0)
      {
        if ((Settings.SslMode != MySqlSslMode.None)
        && (Settings.SslMode != MySqlSslMode.Preferred))
//.........这里部分代码省略.........
开发者ID:jimmy00784,项目名称:mysql-connector-net,代码行数:101,代码来源:NativeDriver.cs

示例3: Open

        public void Open()
        {
            // connect to one of our specified hosts
            try
            {
            #if !CF
                if (Settings.ConnectionProtocol == MySqlConnectionProtocol.SharedMemory)
                {
                    SharedMemoryStream str = new SharedMemoryStream(Settings.SharedMemoryName);
                    str.Open(Settings.ConnectionTimeout);
                    baseStream = str;
                }
                else
                {
            #endif
                    string pipeName = Settings.PipeName;
                    if (Settings.ConnectionProtocol != MySqlConnectionProtocol.NamedPipe)
                        pipeName = null;
                    StreamCreator sc = new StreamCreator(Settings.Server, Settings.Port, pipeName,
                        Settings.Keepalive);
                    baseStream = sc.GetStream(Settings.ConnectionTimeout);
            #if !CF
                }
            #endif
            }
            catch (Exception ex)
            {
                    throw new MySqlException(MySqlResources.UnableToConnectToHost,
                    (int) MySqlErrorCode.UnableToConnectToHost, ex);
            }

            if (baseStream == null)
                    throw new MySqlException(MySqlResources.UnableToConnectToHost,
                    (int)MySqlErrorCode.UnableToConnectToHost);

            int maxSinglePacket = 255*255*255;
            stream = new MySqlStream(baseStream, Encoding, false);

            stream.ResetTimeout((int)Settings.ConnectionTimeout*1000);

            // read off the welcome packet and parse out it's values
            packet = stream.ReadPacket();
            int protocol = packet.ReadByte();
            string versionString = packet.ReadString();
            version = DBVersion.Parse(versionString);
            if (!version.isAtLeast(4, 1, 1))
                    throw new NotSupportedException(MySqlResources.ServerTooOld);
            threadId = packet.ReadInteger(4);
            encryptionSeed = packet.ReadString();

            maxSinglePacket = (256*256*256) - 1;

            // read in Server capabilities if they are provided
            ClientFlags serverCaps = 0;
            if (packet.HasMoreData)
                serverCaps = (ClientFlags) packet.ReadInteger(2);

            /* New protocol with 16 bytes to describe server characteristics */
            owner.ConnectionCharSetIndex = (int)packet.ReadByte();

            serverStatus = (ServerStatusFlags) packet.ReadInteger(2);
            packet.Position += 13;
            string seedPart2 = packet.ReadString();
            encryptionSeed += seedPart2;

            // based on our settings, set our connection flags
            SetConnectionFlags(serverCaps);

            packet.Clear();
            packet.WriteInteger((int) connectionFlags, 4);

            #if !CF
            if ((serverCaps & ClientFlags.SSL) ==0)
            {
                if ((Settings.SslMode != MySqlSslMode.None)
                && (Settings.SslMode != MySqlSslMode.Preferred))
                {
                    // Client requires SSL connections.
                         string message = String.Format(MySqlResources.NoServerSSLSupport,
                        Settings.Server);
                    throw new MySqlException(message);
                }
            }
            else if (Settings.SslMode != MySqlSslMode.None)
            {
                stream.SendPacket(packet);
                StartSSL();
                packet.Clear();
                packet.WriteInteger((int) connectionFlags, 4);
            }
            #endif

            packet.WriteInteger(maxSinglePacket, 4);
            packet.WriteByte(8);
            packet.Write(new byte[23]);

            Authenticate();

            // if we are using compression, then we use our CompressedStream class
            // to hide the ugliness of managing the compression
//.........这里部分代码省略.........
开发者ID:TsahiCX,项目名称:Test1,代码行数:101,代码来源:NativeDriver.cs


注:本文中的MySql.Data.MySqlClient.MySqlStream.ReadPacket方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。