mcs/class/Npgsql/Npgsql/NpgsqlMessageTypes.cs

   1 // Npgsql.NpgsqlMessageTypes.cs
   2 //
   3 // Author:
   4 //      Dave Joyner <d4ljoyn@yahoo.com>
   5 //
   6 //      Copyright (C) 2002 The Npgsql Development Team
   7 //      npgsql-general@gborg.postgresql.org
   8 //      http://gborg.postgresql.org/project/npgsql/projdisplay.php
   9 //
  10 //
  11 // This library is free software; you can redistribute it and/or
  12 // modify it under the terms of the GNU Lesser General Public
  13 // License as published by the Free Software Foundation; either
  14 // version 2.1 of the License, or (at your option) any later version.
  15 //
  16 // This library is distributed in the hope that it will be useful,
  17 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19 // Lesser General Public License for more details.
  20 //
  21 // You should have received a copy of the GNU Lesser General Public
  22 // License along with this library; if not, write to the Free Software
  23 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  24
  25
  26 using System;
  27
  28 namespace Npgsql
  29 {
  30     /// <summary>
  31     /// Class NpgsqlMessageTypes_Ver_2.
  32     /// Defines PG frontend/backend protocol message types and parameters used in protocol version 2.
  33     /// </summary>
  34     internal sealed class NpgsqlMessageTypes_Ver_2
  35     {
  36         private NpgsqlMessageTypes_Ver_2()
  37         {}
  38
  39         public const Char StartupPacket = ' ';
  40         public const Char Terminate = 'X';
  41
  42         public const Char AsciiRow = 'D';
  43         public const Char BinaryRow = 'B';
  44
  45         public const Char AuthenticationRequest = 'R';
  46         // specific Authentication request types
  47         public const Int32 AuthenticationOk = 0;
  48         public const Int32 AuthenticationKerberosV4 = 1;
  49         public const Int32 AuthenticationKerberosV5 = 2;
  50         public const Int32 AuthenticationClearTextPassword = 3;
  51         public const Int32 AuthenticationCryptPassword = 4;
  52         public const Int32 AuthenticationMD5Password = 5;
  53         public const Int32 AuthenticationSCMCredential = 6;
  54
  55         public const Char BackendKeyData = 'K';
  56         public const Char CancelRequest = 'F';
  57         public const Char CompletedResponse = 'C';
  58         public const Char CopyDataRows = ' ';
  59         public const Char CopyInResponse = 'G';
  60         public const Char CopyOutResponse = 'H';
  61         public const Char CursorResponse = 'P';
  62         public const Char EmptyQueryResponse = 'I';
  63         public const Char ErrorResponse = 'E';
  64         public const Char FunctionCall = 'F';
  65
  66         public const Char FunctionResultResponse = 'V';
  67         // specific function result responses
  68         public const Char FunctionResultNonEmptyResponse = 'G';
  69         public const Char FunctionResultVoidResponse = '0';
  70
  71         public const Char NoticeResponse = 'N';
  72         public const Char NotificationResponse = 'A';
  73         public const Char PasswordPacket = ' ';
  74         public const Char Query = 'Q';
  75         public const Char ReadyForQuery = 'Z';
  76         public const Char RowDescription = 'T';
  77         public const Char SSLRequest = ' ';
  78     }
  79
  80
  81     /// <summary>
  82     /// Class NpgsqlMessageTypes_Ver_3.
  83     /// Defines PG frontend/backend protocol message types and parameters used in protocol version 3.
  84     /// </summary>
  85     internal sealed class NpgsqlMessageTypes_Ver_3
  86     {
  87         private NpgsqlMessageTypes_Ver_3()
  88         {}
  89
  90         public const Char StartupPacket = ' ';
  91         public const Char Termination = 'X';
  92
  93         public const Char DataRow = 'D';
  94
  95         public const Char AuthenticationRequest = 'R';
  96         // specific Authentication request types
  97         public const Int32 AuthenticationOk = 0;
  98         public const Int32 AuthenticationKerberosV4 = 1;
  99         public const Int32 AuthenticationKerberosV5 = 2;
 100         public const Int32 AuthenticationClearTextPassword = 3;
 101         public const Int32 AuthenticationCryptPassword = 4;
 102         public const Int32 AuthenticationMD5Password = 5;
 103         public const Int32 AuthenticationSCMCredential = 6;
 104
 105         public const Char BackendKeyData = 'K';
 106         public const Char CancelRequest = 'F';
 107         public const Char CompletedResponse = 'C';
 108         public const Char CopyDataRows = ' ';
 109         public const Char CopyInResponse = 'G';
 110         public const Char CopyOutResponse = 'H';
 111         public const Char EmptyQueryResponse = 'I';
 112         public const Char ErrorResponse = 'E';
 113         public const Char FunctionCall = 'F';
 114         public const Char FunctionCallResponse = 'V';
 115
 116         public const Char NoticeResponse = 'N';
 117         public const Char NotificationResponse = 'A';
 118         public const Char ParameterStatus = 'S';
 119         public const Char PasswordPacket = ' ';
 120         public const Char Query = 'Q';
 121         public const Char ReadyForQuery = 'Z';
 122         public const Char RowDescription = 'T';
 123         public const Char SSLRequest = ' ';
 124
 125         // extended query frontend messages
 126         public const Char Parse = 'P';
 127         public const Char Bind = 'B';
 128         public const Char Execute = 'E';
 129         public const Char Describe = 'D';
 130         public const Char Close = 'C';
 131         public const Char Flush = 'H';
 132         public const Char Sync = 'S';
 133
 134         // extended query backend messages
 135         public const Char ParseComplete = '1';
 136         public const Char BindComplete = '2';
 137         public const Char PortalSuspended = 's';
 138         public const Char ParameterDescription = 't';
 139         public const Char NoData = 'n';
 140         public const Char CloseComplete = '3';
 141
 142     }
 143 }