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126 | ------------------------------------------------------------------------------
-- --
-- Matreshka Project --
-- --
-- Localization, Internationalization, Globalization for Ada --
-- --
-- Runtime Library Component --
-- --
------------------------------------------------------------------------------
-- --
-- Copyright © 2011-2013, Vadim Godunko <vgodunko@gmail.com> --
-- All rights reserved. --
-- --
-- Redistribution and use in source and binary forms, with or without --
-- modification, are permitted provided that the following conditions --
-- are met: --
-- --
-- * Redistributions of source code must retain the above copyright --
-- notice, this list of conditions and the following disclaimer. --
-- --
-- * Redistributions in binary form must reproduce the above copyright --
-- notice, this list of conditions and the following disclaimer in the --
-- documentation and/or other materials provided with the distribution. --
-- --
-- * Neither the name of the Vadim Godunko, IE nor the names of its --
-- contributors may be used to endorse or promote products derived from --
-- this software without specific prior written permission. --
-- --
-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS --
-- "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT --
-- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR --
-- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT --
-- HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, --
-- SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED --
-- TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR --
-- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF --
-- LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING --
-- NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS --
-- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. --
-- --
------------------------------------------------------------------------------
-- $Revision: 3654 $ $Date: 2013-01-19 13:11:21 +0400 (Сб, 19 янв 2013) $
------------------------------------------------------------------------------
-- This is implementation for POSIX operation systems.
------------------------------------------------------------------------------
with Interfaces.C.Strings;
with Matreshka.Internals.Calendars.Gregorian;
with Matreshka.Internals.Calendars.Times;
package body Matreshka.Internals.Calendars.Clocks is
type time_t is new Interfaces.C.long;
type suseconds_t is new Interfaces.C.long;
type timeval is record
tv_sec : aliased time_t;
tv_usec : suseconds_t;
end record;
pragma Convention (C, timeval);
type timezone is record
tz_minuteswest : Interfaces.C.int;
tz_dsttime : Interfaces.C.int;
end record;
pragma Convention (C, timezone);
type tm is record
tm_sec : Interfaces.C.int;
tm_min : Interfaces.C.int;
tm_hour : Interfaces.C.int;
tm_mday : Interfaces.C.int;
tm_mon : Interfaces.C.int;
tm_year : Interfaces.C.int;
tm_wday : Interfaces.C.int;
tm_yday : Interfaces.C.int;
tm_isdst : Interfaces.C.int;
tm_gmtoff : Interfaces.C.long;
tm_zone : Interfaces.C.Strings.chars_ptr;
end record;
pragma Convention (C, tm);
function gettimeofday
(tv : not null access timeval;
tz : access timezone) return Interfaces.C.int;
pragma Import (C, gettimeofday);
function gmtime_r
(timep : not null access constant time_t;
result : not null access tm) return access tm;
pragma Import (C, gmtime_r);
-----------
-- Clock --
-----------
function Clock return Absolute_Time is
use type Interfaces.C.int;
Current_Time : aliased timeval;
Break_Down : aliased tm;
begin
if gettimeofday (Current_Time'Access, null) /= 0 then
return 0;
end if;
if gmtime_r (Current_Time.tv_sec'Access, Break_Down'Access) = null then
return 0;
end if;
return
Times.Create
(Matreshka.Internals.Calendars.UTC_Time_Zone'Access,
Gregorian.Julian_Day
(Integer (Break_Down.tm_year) + 1_900,
Integer (Break_Down.tm_mon) + 1,
Integer (Break_Down.tm_mday)),
Integer (Break_Down.tm_hour),
Integer (Break_Down.tm_min),
Integer (Break_Down.tm_sec),
Integer (Current_Time.tv_usec) * 10);
end Clock;
end Matreshka.Internals.Calendars.Clocks;
|