gcc/ada/libgnat/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) 2002-2017, 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 3,  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.                                     --
  17 --                                                                          --
  18 -- As a special exception under Section 7 of GPL version 3, you are granted --
  19 -- additional permissions described in the GCC Runtime Library Exception,   --
  20 -- version 3.1, as published by the Free Software Foundation.               --
  21 --                                                                          --
  22 -- You should have received a copy of the GNU General Public License and    --
  23 -- a copy of the GCC Runtime Library Exception along with this program;     --
  24 -- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
  25 -- <http://www.gnu.org/licenses/>.                                          --
  26 --                                                                          --
  27 -- GNAT was originally developed  by the GNAT team at  New York University. --
  28 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  29 --                                                                          --
  30 ------------------------------------------------------------------------------
  31
  32 --  This package provides a target dependent thin interface to the sockets
  33 --  layer for use by the GNAT.Sockets package (g-socket.ads). This package
  34 --  should not be directly with'ed by an applications program.
  35
  36 --  This is the version for VxWorks
  37
  38 with Interfaces.C;
  39
  40 with GNAT.OS_Lib;
  41 with GNAT.Sockets.Thin_Common;
  42
  43 with System;
  44 with System.CRTL;
  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 renames GNAT.OS_Lib.Errno;
  53    --  Returns last socket error number
  54
  55    procedure Set_Socket_Errno (Errno : Integer) renames GNAT.OS_Lib.Set_Errno;
  56    --  Set last socket error number
  57
  58    function Socket_Error_Message (Errno : Integer) return String;
  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 (H_Errno : Integer) return String;
  69       --  Returns the error message string for the host error number H_Errno.
  70       --  If H_Errno is not known, returns "Unknown system error".
  71
  72    end Host_Error_Messages;
  73
  74    --------------------------------
  75    -- Standard library functions --
  76    --------------------------------
  77
  78    function C_Accept
  79      (S       : C.int;
  80       Addr    : System.Address;
  81       Addrlen : not null access C.int) return C.int;
  82
  83    function C_Bind
  84      (S       : C.int;
  85       Name    : System.Address;
  86       Namelen : C.int) return C.int;
  87
  88    function C_Close
  89      (Fd : C.int) return C.int;
  90
  91    function C_Connect
  92      (S       : C.int;
  93       Name    : System.Address;
  94       Namelen : C.int) return C.int;
  95
  96    function C_Gethostname
  97      (Name    : System.Address;
  98       Namelen : C.int) return C.int;
  99
 100    function C_Getpeername
 101      (S       : C.int;
 102       Name    : System.Address;
 103       Namelen : not null access C.int) return C.int;
 104
 105    function C_Getsockname
 106      (S       : C.int;
 107       Name    : System.Address;
 108       Namelen : not null access C.int) return C.int;
 109
 110    function C_Getsockopt
 111      (S       : C.int;
 112       Level   : C.int;
 113       Optname : C.int;
 114       Optval  : System.Address;
 115       Optlen  : not null access C.int) return C.int;
 116
 117    function Socket_Ioctl
 118      (S   : C.int;
 119       Req : SOSC.IOCTL_Req_T;
 120       Arg : access C.int) return C.int;
 121
 122    function C_Listen
 123      (S       : C.int;
 124       Backlog : C.int) return C.int;
 125
 126    function C_Recv
 127      (S     : C.int;
 128       Msg   : System.Address;
 129       Len   : C.int;
 130       Flags : C.int) return C.int;
 131
 132    function C_Recvfrom
 133      (S       : C.int;
 134       Msg     : System.Address;
 135       Len     : C.int;
 136       Flags   : C.int;
 137       From    : System.Address;
 138       Fromlen : not null access C.int) return C.int;
 139
 140    function C_Recvmsg
 141      (S     : C.int;
 142       Msg   : System.Address;
 143       Flags : C.int) return System.CRTL.ssize_t;
 144
 145    function C_Select
 146      (Nfds      : C.int;
 147       Readfds   : access Fd_Set;
 148       Writefds  : access Fd_Set;
 149       Exceptfds : access Fd_Set;
 150       Timeout   : Timeval_Access) return C.int;
 151
 152    function C_Sendmsg
 153      (S     : C.int;
 154       Msg   : System.Address;
 155       Flags : C.int) return System.CRTL.ssize_t;
 156
 157    function C_Sendto
 158      (S     : C.int;
 159       Msg   : System.Address;
 160       Len   : C.int;
 161       Flags : C.int;
 162       To    : System.Address;
 163       Tolen : C.int) return C.int;
 164
 165    function C_Setsockopt
 166      (S       : C.int;
 167       Level   : C.int;
 168       Optname : C.int;
 169       Optval  : System.Address;
 170       Optlen  : C.int) return C.int;
 171
 172    function C_Shutdown
 173      (S   : C.int;
 174       How : C.int) return C.int;
 175
 176    function C_Socket
 177      (Domain   : C.int;
 178       Typ      : C.int;
 179       Protocol : C.int) return C.int;
 180
 181    function C_System
 182      (Command : System.Address) return C.int;
 183
 184    -------------------------------------------------------
 185    -- Signalling file descriptors for selector abortion --
 186    -------------------------------------------------------
 187
 188    package Signalling_Fds is
 189
 190       function Create (Fds : not null access Fd_Pair) return C.int;
 191       pragma Convention (C, Create);
 192       --  Create a pair of connected descriptors suitable for use with C_Select
 193       --  (used for signalling in Selector objects).
 194
 195       function Read (Rsig : C.int) return C.int;
 196       pragma Convention (C, Read);
 197       --  Read one byte of data from rsig, the read end of a pair of signalling
 198       --  fds created by Create_Signalling_Fds.
 199
 200       function Write (Wsig : C.int) return C.int;
 201       pragma Convention (C, Write);
 202       --  Write one byte of data to wsig, the write end of a pair of signalling
 203       --  fds created by Create_Signalling_Fds.
 204
 205       procedure Close (Sig : C.int);
 206       pragma Convention (C, Close);
 207       --  Close one end of a pair of signalling fds (ignoring any error)
 208
 209    end Signalling_Fds;
 210
 211    procedure Initialize;
 212    procedure Finalize;
 213
 214 private
 215    pragma Import (C, C_Bind, "bind");
 216    pragma Import (C, C_Close, "close");
 217    pragma Import (C, C_Gethostname, "gethostname");
 218    pragma Import (C, C_Getpeername, "getpeername");
 219    pragma Import (C, C_Getsockname, "getsockname");
 220    pragma Import (C, C_Getsockopt, "getsockopt");
 221    pragma Import (C, C_Listen, "listen");
 222    pragma Import (C, C_Select, "select");
 223    pragma Import (C, C_Setsockopt, "setsockopt");
 224    pragma Import (C, C_Shutdown, "shutdown");
 225    pragma Import (C, C_System, "system");
 226 end GNAT.Sockets.Thin;