gnoga_2.1.2_5f127c56/deps/simple_components/gnat-sockets-ntp.ads

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
--                                                                    --
--  package GNAT.Sockets.NTP        Copyright (c)  Dmitry A. Kazakov  --
--  Interface                                      Luebeck            --
--                                                 Autumn, 2017       --
--                                                                    --
--                                Last revision :  23:22 29 Sep 2017  --
--                                                                    --
--  This  library  is  free software; you can redistribute it and/or  --
--  modify it under the terms of the GNU General Public  License  as  --
--  published by the Free Software Foundation; either version  2  of  --
--  the License, or (at your option) any later version. This library  --
--  is distributed in the hope that it will be useful,  but  WITHOUT  --
--  ANY   WARRANTY;   without   even   the   implied   warranty   of  --
--  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU  --
--  General  Public  License  for  more  details.  You  should  have  --
--  received  a  copy  of  the GNU General Public License along with  --
--  this library; if not, write to  the  Free  Software  Foundation,  --
--  Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.    --
--                                                                    --
--  As a special exception, if other files instantiate generics from  --
--  this unit, or you link this unit with other files to produce  an  --
--  executable, this unit does not by  itself  cause  the  resulting  --
--  executable to be covered by the GNU General Public License. This  --
--  exception  does not however invalidate any other reasons why the  --
--  executable file might be covered by the GNU Public License.       --
--____________________________________________________________________--

with Ada.Calendar;  use Ada.Calendar;

package GNAT.Sockets.NTP is
--
-- Get_Time -- Quyery time from an NTP server
--
--    Server  - The server name or IP address
--    Timeout - For the operation
--    Adjust  - Subtract half of roundtrip time
--
-- The returned  time is UTC.  If the local time  is required  it can be
-- obtained this way:
--
--    Get_Time ("time.nist.gov") + Duration (UTC_Time_Offset) * 60.0)
--
-- Returns :
--
--    The server time UTC
--
   function Get_Time
            (  Server  : String;
               Timeout : Timeval_Duration := 10.0;
               Adjust  : Boolean := True
            )  return Time;

end GNAT.Sockets.NTP;