1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
5 -- G N A T . S O C K E T S . T H I N --
9 -- Copyright (C) 2002-2008, AdaCore --
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. --
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. --
29 -- GNAT was originally developed by the GNAT team at New York University. --
30 -- Extensive contributions were provided by Ada Core Technologies Inc. --
32 ------------------------------------------------------------------------------
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.
38 -- This is the version for VxWorks
40 with Interfaces
.C
.Strings
;
43 with GNAT
.Sockets
.Thin_Common
;
47 package GNAT
.Sockets
.Thin
is
51 package C
renames Interfaces
.C
;
53 function Socket_Errno
return Integer renames GNAT
.OS_Lib
.Errno
;
54 -- Returns last socket error number
56 procedure Set_Socket_Errno
(Errno
: Integer) renames GNAT
.OS_Lib
.Set_Errno
;
57 -- Set last socket error number
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".
63 function Host_Errno
return Integer;
64 pragma Import
(C
, Host_Errno
, "__gnat_get_h_errno");
65 -- Returns last host error number
67 package Host_Error_Messages
is
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".
74 end Host_Error_Messages
;
76 --------------------------------
77 -- Standard library functions --
78 --------------------------------
82 Addr
: System
.Address
;
83 Addrlen
: not null access C
.int
) return C
.int
;
87 Name
: System
.Address
;
88 Namelen
: C
.int
) return C
.int
;
91 (Fd
: C
.int
) return C
.int
;
95 Name
: System
.Address
;
96 Namelen
: C
.int
) return C
.int
;
98 function C_Gethostname
99 (Name
: System
.Address
;
100 Namelen
: C
.int
) return C
.int
;
102 function C_Getpeername
104 Name
: System
.Address
;
105 Namelen
: not null access C
.int
) return C
.int
;
107 function C_Getsockname
109 Name
: System
.Address
;
110 Namelen
: not null access C
.int
) return C
.int
;
112 function C_Getsockopt
116 Optval
: System
.Address
;
117 Optlen
: not null access C
.int
) return C
.int
;
120 (Cp
: C
.Strings
.chars_ptr
) return C
.int
;
125 Arg
: Int_Access
) return C
.int
;
129 Backlog
: C
.int
) return C
.int
;
133 Iov
: System
.Address
;
134 Iovcnt
: C
.int
) return C
.int
;
138 Msg
: System
.Address
;
140 Flags
: C
.int
) return C
.int
;
144 Msg
: System
.Address
;
147 From
: Sockaddr_In_Access
;
148 Fromlen
: not null access C
.int
) return C
.int
;
152 Readfds
: Fd_Set_Access
;
153 Writefds
: Fd_Set_Access
;
154 Exceptfds
: Fd_Set_Access
;
155 Timeout
: Timeval_Access
) return C
.int
;
159 Msg
: System
.Address
;
161 Flags
: C
.int
) return C
.int
;
165 Msg
: System
.Address
;
168 To
: Sockaddr_In_Access
;
169 Tolen
: C
.int
) return C
.int
;
171 function C_Setsockopt
175 Optval
: System
.Address
;
176 Optlen
: C
.int
) return C
.int
;
180 How
: C
.int
) return C
.int
;
185 Protocol
: C
.int
) return C
.int
;
188 (Errnum
: C
.int
) return C
.Strings
.chars_ptr
;
191 (Command
: System
.Address
) return C
.int
;
195 Iov
: System
.Address
;
196 Iovcnt
: C
.int
) return C
.int
;
198 -------------------------------------------------------
199 -- Signalling file descriptors for selector abortion --
200 -------------------------------------------------------
202 package Signalling_Fds
is
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).
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.
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.
219 procedure Close
(Sig
: C
.int
);
220 pragma Convention
(C
, Close
);
221 -- Close one end of a pair of signalling fds (ignoring any error)
225 procedure Initialize
;
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
;