gcc/ada/g-socthi-mingw.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                    G N A T . S O C K E T S . T H I N                     --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 --                     Copyright (C) 2001-2009, AdaCore                     --
  10 --                                                                          --
  11 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  12 -- terms of the  GNU General Public License as published  by the Free Soft- --
  13 -- ware  Foundation;  either version 2,  or (at your option) any later ver- --
  14 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  15 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  16 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  17 -- for  more details.  You should have  received  a copy of the GNU General --
  18 -- Public License  distributed with GNAT;  see file COPYING.  If not, write --
  19 -- to  the  Free Software Foundation,  51  Franklin  Street,  Fifth  Floor, --
  20 -- Boston, MA 02110-1301, USA.                                              --
  21 --                                                                          --
  22 -- As a special exception,  if other files  instantiate  generics from this --
  23 -- unit, or you link  this unit with other files  to produce an executable, --
  24 -- this  unit  does not  by itself cause  the resulting  executable  to  be --
  25 -- covered  by the  GNU  General  Public  License.  This exception does not --
  26 -- however invalidate  any other reasons why  the executable file  might be --
  27 -- covered by the  GNU Public License.                                      --
  28 --                                                                          --
  29 -- GNAT was originally developed  by the GNAT team at  New York University. --
  30 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  31 --                                                                          --
  32 ------------------------------------------------------------------------------
  33
  34 --  This package provides a target dependent thin interface to the sockets
  35 --  layer for use by the GNAT.Sockets package (g-socket.ads). This package
  36 --  should not be directly with'ed by an applications program.
  37
  38 --  This version is for NT
  39
  40 with Interfaces.C.Strings;
  41
  42 with GNAT.Sockets.Thin_Common;
  43
  44 with System;
  45 with System.CRTL;
  46
  47 package GNAT.Sockets.Thin is
  48
  49    use Thin_Common;
  50
  51    package C renames Interfaces.C;
  52
  53    use type System.CRTL.ssize_t;
  54
  55    function Socket_Errno return Integer;
  56    --  Returns last socket error number
  57
  58    procedure Set_Socket_Errno (Errno : Integer);
  59    --  Set last socket error number
  60
  61    function Socket_Error_Message (Errno : Integer) return C.Strings.chars_ptr;
  62    --  Returns the error message string for the error number Errno. If Errno is
  63    --  not known, returns "Unknown system error".
  64
  65    function Host_Errno return Integer;
  66    pragma Import (C, Host_Errno, "__gnat_get_h_errno");
  67    --  Returns last host error number
  68
  69    package Host_Error_Messages is
  70
  71       function Host_Error_Message
  72         (H_Errno : Integer) return C.Strings.chars_ptr;
  73       --  Returns the error message string for the host error number H_Errno.
  74       --  If H_Errno is not known, returns "Unknown system error".
  75
  76    end Host_Error_Messages;
  77
  78    --------------------------------
  79    -- Standard library functions --
  80    --------------------------------
  81
  82    function C_Accept
  83      (S       : C.int;
  84       Addr    : System.Address;
  85       Addrlen : not null access C.int) return C.int;
  86
  87    function C_Bind
  88      (S       : C.int;
  89       Name    : System.Address;
  90       Namelen : C.int) return C.int;
  91
  92    function C_Close
  93      (Fd : C.int) return C.int;
  94
  95    function C_Connect
  96      (S       : C.int;
  97       Name    : System.Address;
  98       Namelen : C.int) return C.int;
  99
 100    function C_Gethostname
 101      (Name    : System.Address;
 102       Namelen : C.int) return C.int;
 103
 104    function C_Getpeername
 105      (S       : C.int;
 106       Name    : System.Address;
 107       Namelen : not null access C.int) return C.int;
 108
 109    function C_Getsockname
 110      (S       : C.int;
 111       Name    : System.Address;
 112       Namelen : not null access C.int) return C.int;
 113
 114    function C_Getsockopt
 115      (S       : C.int;
 116       Level   : C.int;
 117       Optname : C.int;
 118       Optval  : System.Address;
 119       Optlen  : not null access C.int) return C.int;
 120
 121    function Socket_Ioctl
 122      (S   : C.int;
 123       Req : C.int;
 124       Arg : access C.int) return C.int;
 125
 126    function C_Listen
 127      (S       : C.int;
 128       Backlog : C.int) return C.int;
 129
 130    function C_Recv
 131      (S     : C.int;
 132       Msg   : System.Address;
 133       Len   : C.int;
 134       Flags : C.int) return C.int;
 135
 136    function C_Recvfrom
 137      (S       : C.int;
 138       Msg     : System.Address;
 139       Len     : C.int;
 140       Flags   : C.int;
 141       From    : System.Address;
 142       Fromlen : not null access C.int) return C.int;
 143
 144    function C_Recvmsg
 145      (S     : C.int;
 146       Msg   : System.Address;
 147       Flags : C.int) return System.CRTL.ssize_t;
 148
 149    function C_Select
 150      (Nfds      : C.int;
 151       Readfds   : access Fd_Set;
 152       Writefds  : access Fd_Set;
 153       Exceptfds : access Fd_Set;
 154       Timeout   : Timeval_Access) return C.int;
 155
 156    function C_Sendmsg
 157      (S     : C.int;
 158       Msg   : System.Address;
 159       Flags : C.int) return System.CRTL.ssize_t;
 160
 161    function C_Sendto
 162      (S     : C.int;
 163       Msg   : System.Address;
 164       Len   : C.int;
 165       Flags : C.int;
 166       To    : System.Address;
 167       Tolen : C.int) return C.int;
 168
 169    function C_Setsockopt
 170      (S       : C.int;
 171       Level   : C.int;
 172       Optname : C.int;
 173       Optval  : System.Address;
 174       Optlen  : C.int) return C.int;
 175
 176    function C_Shutdown
 177      (S   : C.int;
 178       How : C.int) return C.int;
 179
 180    function C_Socket
 181      (Domain   : C.int;
 182       Typ      : C.int;
 183       Protocol : C.int) return C.int;
 184
 185    function C_System
 186      (Command : System.Address) return C.int;
 187
 188    function WSAStartup
 189      (WS_Version     : Interfaces.C.unsigned_short;
 190       WSADataAddress : System.Address) return Interfaces.C.int;
 191
 192    -------------------------------------------------------
 193    -- Signalling file descriptors for selector abortion --
 194    -------------------------------------------------------
 195
 196    package Signalling_Fds is
 197
 198       function Create (Fds : not null access Fd_Pair) return C.int;
 199       pragma Convention (C, Create);
 200       --  Create a pair of connected descriptors suitable for use with C_Select
 201       --  (used for signalling in Selector objects).
 202
 203       function Read (Rsig : C.int) return C.int;
 204       pragma Convention (C, Read);
 205       --  Read one byte of data from rsig, the read end of a pair of signalling
 206       --  fds created by Create_Signalling_Fds.
 207
 208       function Write (Wsig : C.int) return C.int;
 209       pragma Convention (C, Write);
 210       --  Write one byte of data to wsig, the write end of a pair of signalling
 211       --  fds created by Create_Signalling_Fds.
 212
 213       procedure Close (Sig : C.int);
 214       pragma Convention (C, Close);
 215       --  Close one end of a pair of signalling fds (ignoring any error)
 216
 217    end Signalling_Fds;
 218
 219    procedure WSACleanup;
 220
 221    procedure Initialize;
 222    procedure Finalize;
 223
 224 private
 225    pragma Import (Stdcall, C_Accept, "accept");
 226    pragma Import (Stdcall, C_Bind, "bind");
 227    pragma Import (Stdcall, C_Close, "closesocket");
 228    pragma Import (Stdcall, C_Gethostname, "gethostname");
 229    pragma Import (Stdcall, C_Getpeername, "getpeername");
 230    pragma Import (Stdcall, C_Getsockname, "getsockname");
 231    pragma Import (Stdcall, C_Getsockopt, "getsockopt");
 232    pragma Import (Stdcall, C_Listen, "listen");
 233    pragma Import (Stdcall, C_Recv, "recv");
 234    pragma Import (Stdcall, C_Recvfrom, "recvfrom");
 235    pragma Import (Stdcall, C_Sendto, "sendto");
 236    pragma Import (Stdcall, C_Setsockopt, "setsockopt");
 237    pragma Import (Stdcall, C_Shutdown, "shutdown");
 238    pragma Import (Stdcall, C_Socket, "socket");
 239    pragma Import (C, C_System, "_system");
 240    pragma Import (Stdcall, Socket_Errno, "WSAGetLastError");
 241    pragma Import (Stdcall, Set_Socket_Errno, "WSASetLastError");
 242    pragma Import (Stdcall, WSAStartup, "WSAStartup");
 243    pragma Import (Stdcall, WSACleanup, "WSACleanup");
 244
 245 end GNAT.Sockets.Thin;