gcc/ada/g-socthi-vxworks.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) 2002-2008, 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 is the version for VxWorks
  39
  40 with Interfaces.C.Strings;
  41
  42 with GNAT.OS_Lib;
  43 with GNAT.Sockets.Thin_Common;
  44
  45 with System;
  46
  47 package GNAT.Sockets.Thin is
  48
  49    use Thin_Common;
  50
  51    package C renames Interfaces.C;
  52
  53    function Socket_Errno return Integer renames GNAT.OS_Lib.Errno;
  54    --  Returns last socket error number
  55
  56    procedure Set_Socket_Errno (Errno : Integer) renames GNAT.OS_Lib.Set_Errno;
  57    --  Set last socket error number
  58
  59    function Socket_Error_Message (Errno : Integer) return C.Strings.chars_ptr;
  60    --  Returns the error message string for the error number Errno. If Errno is
  61    --  not known, returns "Unknown system error".
  62
  63    function Host_Errno return Integer;
  64    pragma Import (C, Host_Errno, "__gnat_get_h_errno");
  65    --  Returns last host error number
  66
  67    package Host_Error_Messages is
  68
  69       function Host_Error_Message
  70         (H_Errno : Integer) return C.Strings.chars_ptr;
  71       --  Returns the error message string for the host error number H_Errno.
  72       --  If H_Errno is not known, returns "Unknown system error".
  73
  74    end Host_Error_Messages;
  75
  76    --------------------------------
  77    -- Standard library functions --
  78    --------------------------------
  79
  80    function C_Accept
  81      (S       : C.int;
  82       Addr    : System.Address;
  83       Addrlen : not null access C.int) return C.int;
  84
  85    function C_Bind
  86      (S       : C.int;
  87       Name    : System.Address;
  88       Namelen : C.int) return C.int;
  89
  90    function C_Close
  91      (Fd : C.int) return C.int;
  92
  93    function C_Connect
  94      (S       : C.int;
  95       Name    : System.Address;
  96       Namelen : C.int) return C.int;
  97
  98    function C_Gethostname
  99      (Name    : System.Address;
 100       Namelen : C.int) return C.int;
 101
 102    function C_Getpeername
 103      (S       : C.int;
 104       Name    : System.Address;
 105       Namelen : not null access C.int) return C.int;
 106
 107    function C_Getsockname
 108      (S       : C.int;
 109       Name    : System.Address;
 110       Namelen : not null access C.int) return C.int;
 111
 112    function C_Getsockopt
 113      (S       : C.int;
 114       Level   : C.int;
 115       Optname : C.int;
 116       Optval  : System.Address;
 117       Optlen  : not null access C.int) return C.int;
 118
 119    function C_Inet_Addr
 120      (Cp : C.Strings.chars_ptr) return C.int;
 121
 122    function C_Ioctl
 123      (S    : C.int;
 124       Req  : C.int;
 125       Arg  : Int_Access) return C.int;
 126
 127    function C_Listen
 128      (S       : C.int;
 129       Backlog : C.int) return C.int;
 130
 131    function C_Readv
 132      (Fd     : C.int;
 133       Iov    : System.Address;
 134       Iovcnt : C.int) return C.int;
 135
 136    function C_Recv
 137      (S     : C.int;
 138       Msg   : System.Address;
 139       Len   : C.int;
 140       Flags : C.int) return C.int;
 141
 142    function C_Recvfrom
 143      (S       : C.int;
 144       Msg     : System.Address;
 145       Len     : C.int;
 146       Flags   : C.int;
 147       From    : Sockaddr_In_Access;
 148       Fromlen : not null access C.int) return C.int;
 149
 150    function C_Select
 151      (Nfds      : C.int;
 152       Readfds   : Fd_Set_Access;
 153       Writefds  : Fd_Set_Access;
 154       Exceptfds : Fd_Set_Access;
 155       Timeout   : Timeval_Access) return C.int;
 156
 157    function C_Send
 158      (S     : C.int;
 159       Msg   : System.Address;
 160       Len   : C.int;
 161       Flags : C.int) return C.int;
 162
 163    function C_Sendto
 164      (S     : C.int;
 165       Msg   : System.Address;
 166       Len   : C.int;
 167       Flags : C.int;
 168       To    : Sockaddr_In_Access;
 169       Tolen : C.int) return C.int;
 170
 171    function C_Setsockopt
 172      (S       : C.int;
 173       Level   : C.int;
 174       Optname : C.int;
 175       Optval  : System.Address;
 176       Optlen  : C.int) return C.int;
 177
 178    function C_Shutdown
 179      (S   : C.int;
 180       How : C.int) return C.int;
 181
 182    function C_Socket
 183      (Domain   : C.int;
 184       Typ      : C.int;
 185       Protocol : C.int) return C.int;
 186
 187    function C_Strerror
 188      (Errnum : C.int) return C.Strings.chars_ptr;
 189
 190    function C_System
 191      (Command : System.Address) return C.int;
 192
 193    function C_Writev
 194      (Fd     : C.int;
 195       Iov    : System.Address;
 196       Iovcnt : C.int) return C.int;
 197
 198    -------------------------------------------------------
 199    -- Signalling file descriptors for selector abortion --
 200    -------------------------------------------------------
 201
 202    package Signalling_Fds is
 203
 204       function Create (Fds : not null access Fd_Pair) return C.int;
 205       pragma Convention (C, Create);
 206       --  Create a pair of connected descriptors suitable for use with C_Select
 207       --  (used for signalling in Selector objects).
 208
 209       function Read (Rsig : C.int) return C.int;
 210       pragma Convention (C, Read);
 211       --  Read one byte of data from rsig, the read end of a pair of signalling
 212       --  fds created by Create_Signalling_Fds.
 213
 214       function Write (Wsig : C.int) return C.int;
 215       pragma Convention (C, Write);
 216       --  Write one byte of data to wsig, the write end of a pair of signalling
 217       --  fds created by Create_Signalling_Fds.
 218
 219       procedure Close (Sig : C.int);
 220       pragma Convention (C, Close);
 221       --  Close one end of a pair of signalling fds (ignoring any error)
 222
 223    end Signalling_Fds;
 224
 225    procedure Initialize;
 226    procedure Finalize;
 227
 228 private
 229    pragma Import (C, C_Bind, "bind");
 230    pragma Import (C, C_Close, "close");
 231    pragma Import (C, C_Gethostname, "gethostname");
 232    pragma Import (C, C_Getpeername, "getpeername");
 233    pragma Import (C, C_Getsockname, "getsockname");
 234    pragma Import (C, C_Getsockopt, "getsockopt");
 235    pragma Import (C, C_Inet_Addr, "inet_addr");
 236    pragma Import (C, C_Listen, "listen");
 237    pragma Import (C, C_Readv, "readv");
 238    pragma Import (C, C_Select, "select");
 239    pragma Import (C, C_Setsockopt, "setsockopt");
 240    pragma Import (C, C_Shutdown, "shutdown");
 241    pragma Import (C, C_Strerror, "strerror");
 242    pragma Import (C, C_System, "system");
 243    pragma Import (C, C_Writev, "writev");
 244 end GNAT.Sockets.Thin;