File : 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) 2002-2013, 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 -- --
19 -- --
20 -- --
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 use type System.CRTL.ssize_t;
53
54 function Socket_Errno return Integer renames GNAT.OS_Lib.Errno;
55 -- Returns last socket error number
56
57 procedure Set_Socket_Errno (Errno : Integer) renames GNAT.OS_Lib.Set_Errno;
58 -- Set last socket error number
59
60 function Socket_Error_Message (Errno : Integer) return String;
61 -- Returns the error message string for the error number Errno. If Errno is
62 -- not known, returns "Unknown system error".
63
64 function Host_Errno return Integer;
65 pragma Import (C, Host_Errno, "__gnat_get_h_errno");
66 -- Returns last host error number
67
68 package Host_Error_Messages is
69
70 function Host_Error_Message (H_Errno : Integer) return String;
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 Socket_Ioctl
120 (S : C.int;
121 Req : SOSC.IOCTL_Req_T;
122 Arg : access C.int) return C.int;
123
124 function C_Listen
125 (S : C.int;
126 Backlog : C.int) return C.int;
127
128 function C_Recv
129 (S : C.int;
130 Msg : System.Address;
131 Len : C.int;
132 Flags : C.int) return C.int;
133
134 function C_Recvfrom
135 (S : C.int;
136 Msg : System.Address;
137 Len : C.int;
138 Flags : C.int;
139 From : System.Address;
140 Fromlen : not null access C.int) return C.int;
141
142 function C_Recvmsg
143 (S : C.int;
144 Msg : System.Address;
145 Flags : C.int) return System.CRTL.ssize_t;
146
147 function C_Select
148 (Nfds : C.int;
149 Readfds : access Fd_Set;
150 Writefds : access Fd_Set;
151 Exceptfds : access Fd_Set;
152 Timeout : Timeval_Access) return C.int;
153
154 function C_Sendmsg
155 (S : C.int;
156 Msg : System.Address;
157 Flags : C.int) return System.CRTL.ssize_t;
158
159 function C_Sendto
160 (S : C.int;
161 Msg : System.Address;
162 Len : C.int;
163 Flags : C.int;
164 To : System.Address;
165 Tolen : C.int) return C.int;
166
167 function C_Setsockopt
168 (S : C.int;
169 Level : C.int;
170 Optname : C.int;
171 Optval : System.Address;
172 Optlen : C.int) return C.int;
173
174 function C_Shutdown
175 (S : C.int;
176 How : C.int) return C.int;
177
178 function C_Socket
179 (Domain : C.int;
180 Typ : C.int;
181 Protocol : C.int) return C.int;
182
183 function C_System
184 (Command : System.Address) return C.int;
185
186 -------------------------------------------------------
187 -- Signalling file descriptors for selector abortion --
188 -------------------------------------------------------
189
190 package Signalling_Fds is
191
192 function Create (Fds : not null access Fd_Pair) return C.int;
193 pragma Convention (C, Create);
194 -- Create a pair of connected descriptors suitable for use with C_Select
195 -- (used for signalling in Selector objects).
196
197 function Read (Rsig : C.int) return C.int;
198 pragma Convention (C, Read);
199 -- Read one byte of data from rsig, the read end of a pair of signalling
200 -- fds created by Create_Signalling_Fds.
201
202 function Write (Wsig : C.int) return C.int;
203 pragma Convention (C, Write);
204 -- Write one byte of data to wsig, the write end of a pair of signalling
205 -- fds created by Create_Signalling_Fds.
206
207 procedure Close (Sig : C.int);
208 pragma Convention (C, Close);
209 -- Close one end of a pair of signalling fds (ignoring any error)
210
211 end Signalling_Fds;
212
213 procedure Initialize;
214 procedure Finalize;
215
216 private
217 pragma Import (C, C_Bind, "bind");
218 pragma Import (C, C_Close, "close");
219 pragma Import (C, C_Gethostname, "gethostname");
220 pragma Import (C, C_Getpeername, "getpeername");
221 pragma Import (C, C_Getsockname, "getsockname");
222 pragma Import (C, C_Getsockopt, "getsockopt");
223 pragma Import (C, C_Listen, "listen");
224 pragma Import (C, C_Select, "select");
225 pragma Import (C, C_Setsockopt, "setsockopt");
226 pragma Import (C, C_Shutdown, "shutdown");
227 pragma Import (C, C_System, "system");
228 end GNAT.Sockets.Thin;