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) 2001-2008, 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
  46 package GNAT.Sockets.Thin is
  47
  48    use Thin_Common;
  49
  50    package C renames Interfaces.C;
  51
  52    function Socket_Errno return Integer;
  53    --  Returns last socket error number
  54
  55    procedure Set_Socket_Errno (Errno : Integer);
  56    --  Set last socket error number
  57
  58    function Socket_Error_Message (Errno : Integer) return C.Strings.chars_ptr;
  59    --  Returns the error message string for the error number Errno. If Errno is
  60    --  not known, returns "Unknown system error".
  61
  62    function Host_Errno return Integer;
  63    pragma Import (C, Host_Errno, "__gnat_get_h_errno");
  64    --  Returns last host error number
  65
  66    package Host_Error_Messages is
  67
  68       function Host_Error_Message
  69         (H_Errno : Integer) return C.Strings.chars_ptr;
  70       --  Returns the error message string for the host error number H_Errno.
  71       --  If H_Errno is not known, returns "Unknown system error".
  72
  73    end Host_Error_Messages;
  74
  75    --------------------------------
  76    -- Standard library functions --
  77    --------------------------------
  78
  79    function C_Accept
  80      (S       : C.int;
  81       Addr    : System.Address;
  82       Addrlen : not null access C.int) return C.int;
  83
  84    function C_Bind
  85      (S       : C.int;
  86       Name    : System.Address;
  87       Namelen : C.int) return C.int;
  88
  89    function C_Close
  90      (Fd : C.int) return C.int;
  91
  92    function C_Connect
  93      (S       : C.int;
  94       Name    : System.Address;
  95       Namelen : C.int) return C.int;
  96
  97    function C_Gethostname
  98      (Name    : System.Address;
  99       Namelen : C.int) return C.int;
 100
 101    function C_Getpeername
 102      (S       : C.int;
 103       Name    : System.Address;
 104       Namelen : not null access C.int) return C.int;
 105
 106    function C_Getsockname
 107      (S       : C.int;
 108       Name    : System.Address;
 109       Namelen : not null access C.int) return C.int;
 110
 111    function C_Getsockopt
 112      (S       : C.int;
 113       Level   : C.int;
 114       Optname : C.int;
 115       Optval  : System.Address;
 116       Optlen  : not null access C.int) return C.int;
 117
 118    function C_Inet_Addr
 119      (Cp : C.Strings.chars_ptr) return C.int;
 120
 121    function C_Ioctl
 122      (S    : C.int;
 123       Req  : C.int;
 124       Arg  : Int_Access) return C.int;
 125
 126    function C_Listen
 127      (S       : C.int;
 128       Backlog : C.int) return C.int;
 129
 130    function C_Readv
 131      (Fd     : C.int;
 132       Iov    : System.Address;
 133       Iovcnt : C.int) return C.int;
 134
 135    function C_Recv
 136      (S     : C.int;
 137       Msg   : System.Address;
 138       Len   : C.int;
 139       Flags : C.int) return C.int;
 140
 141    function C_Recvfrom
 142      (S       : C.int;
 143       Msg     : System.Address;
 144       Len     : C.int;
 145       Flags   : C.int;
 146       From    : Sockaddr_In_Access;
 147       Fromlen : not null access C.int) return C.int;
 148
 149    function C_Select
 150      (Nfds      : C.int;
 151       Readfds   : Fd_Set_Access;
 152       Writefds  : Fd_Set_Access;
 153       Exceptfds : Fd_Set_Access;
 154       Timeout   : Timeval_Access) return C.int;
 155
 156    function C_Send
 157      (S     : C.int;
 158       Msg   : System.Address;
 159       Len   : C.int;
 160       Flags : C.int) return C.int;
 161
 162    function C_Sendto
 163      (S     : C.int;
 164       Msg   : System.Address;
 165       Len   : C.int;
 166       Flags : C.int;
 167       To    : Sockaddr_In_Access;
 168       Tolen : C.int) return C.int;
 169
 170    function C_Setsockopt
 171      (S       : C.int;
 172       Level   : C.int;
 173       Optname : C.int;
 174       Optval  : System.Address;
 175       Optlen  : C.int) return C.int;
 176
 177    function C_Shutdown
 178      (S   : C.int;
 179       How : C.int) return C.int;
 180
 181    function C_Socket
 182      (Domain   : C.int;
 183       Typ      : C.int;
 184       Protocol : C.int) return C.int;
 185
 186    function C_Strerror
 187      (Errnum : C.int) return C.Strings.chars_ptr;
 188
 189    function C_System
 190      (Command : System.Address) return C.int;
 191
 192    function C_Writev
 193      (Fd     : C.int;
 194       Iov    : System.Address;
 195       Iovcnt : C.int) return C.int;
 196
 197    function WSAStartup
 198      (WS_Version     : Interfaces.C.int;
 199       WSADataAddress : System.Address) return Interfaces.C.int;
 200
 201    -------------------------------------------------------
 202    -- Signalling file descriptors for selector abortion --
 203    -------------------------------------------------------
 204
 205    package Signalling_Fds is
 206
 207       function Create (Fds : not null access Fd_Pair) return C.int;
 208       pragma Convention (C, Create);
 209       --  Create a pair of connected descriptors suitable for use with C_Select
 210       --  (used for signalling in Selector objects).
 211
 212       function Read (Rsig : C.int) return C.int;
 213       pragma Convention (C, Read);
 214       --  Read one byte of data from rsig, the read end of a pair of signalling
 215       --  fds created by Create_Signalling_Fds.
 216
 217       function Write (Wsig : C.int) return C.int;
 218       pragma Convention (C, Write);
 219       --  Write one byte of data to wsig, the write end of a pair of signalling
 220       --  fds created by Create_Signalling_Fds.
 221
 222       procedure Close (Sig : C.int);
 223       pragma Convention (C, Close);
 224       --  Close one end of a pair of signalling fds (ignoring any error)
 225
 226    end Signalling_Fds;
 227
 228    procedure WSACleanup;
 229
 230    procedure Initialize;
 231    procedure Finalize;
 232
 233 private
 234    pragma Import (Stdcall, C_Accept, "accept");
 235    pragma Import (Stdcall, C_Bind, "bind");
 236    pragma Import (Stdcall, C_Close, "closesocket");
 237    pragma Import (Stdcall, C_Gethostname, "gethostname");
 238    pragma Import (Stdcall, C_Getpeername, "getpeername");
 239    pragma Import (Stdcall, C_Getsockname, "getsockname");
 240    pragma Import (Stdcall, C_Getsockopt, "getsockopt");
 241    pragma Import (Stdcall, C_Inet_Addr, "inet_addr");
 242    pragma Import (Stdcall, C_Ioctl, "ioctlsocket");
 243    pragma Import (Stdcall, C_Listen, "listen");
 244    pragma Import (Stdcall, C_Recv, "recv");
 245    pragma Import (Stdcall, C_Recvfrom, "recvfrom");
 246    pragma Import (Stdcall, C_Send, "send");
 247    pragma Import (Stdcall, C_Sendto, "sendto");
 248    pragma Import (Stdcall, C_Setsockopt, "setsockopt");
 249    pragma Import (Stdcall, C_Shutdown, "shutdown");
 250    pragma Import (Stdcall, C_Socket, "socket");
 251    pragma Import (C, C_Strerror, "strerror");
 252    pragma Import (C, C_System, "_system");
 253    pragma Import (Stdcall, Socket_Errno, "WSAGetLastError");
 254    pragma Import (Stdcall, Set_Socket_Errno, "WSASetLastError");
 255    pragma Import (Stdcall, WSAStartup, "WSAStartup");
 256    pragma Import (Stdcall, WSACleanup, "WSACleanup");
 257
 258 end GNAT.Sockets.Thin;