-- SPDX-License-Identifier: BSD-2-Clause

--
--  RTEMS / Body
--
--  DESCRIPTION:
--
--  This package provides the interface to the RTEMS API.
--
--
--  DEPENDENCIES:
--
--
--
--  COPYRIGHT (c) 1997-2011.
--  On-Line Applications Research Corporation (OAR).
--
--  Redistribution and use in source and binary forms, with or without
--  modification, are permitted provided that the following conditions
--  are met:
--  1. Redistributions of source code must retain the above copyright
--     notice, this list of conditions and the following disclaimer.
--  2. 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.
--
--  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 OWNER 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.
--

package body RTEMS.Clock is

   --
   -- Clock Manager
   --

   procedure Set
     (Time_Buffer : in RTEMS.Time_Of_Day;
      Result      : out RTEMS.Status_Codes)
   is
      function Set_Base
        (Time_Buffer : access RTEMS.Time_Of_Day)
         return        RTEMS.Status_Codes;
      pragma Import (C, Set_Base, "rtems_clock_set");

      Tmp_Time : aliased RTEMS.Time_Of_Day;
   begin

      Tmp_Time := Time_Buffer;
      Result   := Set_Base (Tmp_Time'Access);

   end Set;

   procedure Get_TOD
     (Time   : out RTEMS.Time_Of_Day;
      Result : out RTEMS.Status_Codes)
   is
      function Get_TOD_Base
        (Time : access RTEMS.Time_Of_Day)
         return RTEMS.Status_Codes;
      pragma Import (C, Get_TOD_Base, "rtems_clock_get_tod");

      Tmp_Time : aliased RTEMS.Time_Of_Day;
   begin
      Result := Get_TOD_Base (Tmp_Time'Access);
      Time   := Tmp_Time;
   end Get_TOD;

   procedure Get_TOD_Time_Value
     (Time   : out RTEMS.Time_Value;
      Result : out RTEMS.Status_Codes)
   is
      function Get_TOD_Time_Value_Base
        (Time : access RTEMS.Time_Value)
         return RTEMS.Status_Codes;
      pragma Import
        (C,
         Get_TOD_Time_Value_Base,
         "rtems_clock_get_tod_timeval");

      Tmp_Time : aliased RTEMS.Time_Value;
   begin
      Result := Get_TOD_Time_Value_Base (Tmp_Time'Access);
      Time   := Tmp_Time;
   end Get_TOD_Time_Value;

   procedure Get_Seconds_Since_Epoch
     (The_Interval : out RTEMS.Interval;
      Result       : out RTEMS.Status_Codes)
   is
      function Get_Seconds_Since_Epoch_Base
        (The_Interval : access RTEMS.Interval)
         return         RTEMS.Status_Codes;
      pragma Import
        (C,
         Get_Seconds_Since_Epoch_Base,
         "rtems_clock_get_seconds_since_epoch");

      Tmp_Interval : aliased RTEMS.Interval;
   begin
      Result       :=
         Get_Seconds_Since_Epoch_Base (Tmp_Interval'Access);
      The_Interval := Tmp_Interval;
   end Get_Seconds_Since_Epoch;

   -- Get_Ticks_Per_Second is in rtems.ads

   -- Get_Ticks_Since_Boot is in rtems.ads

   procedure Get_Uptime
     (Uptime : out RTEMS.Timespec;
      Result : out RTEMS.Status_Codes)
   is
      function Get_Uptime_Base
        (Uptime : access RTEMS.Timespec)
         return   RTEMS.Status_Codes;
      pragma Import (C, Get_Uptime_Base, "rtems_clock_get_uptime");
      Uptime_Base : aliased RTEMS.Timespec;
   begin

      Result := Get_Uptime_Base (Uptime_Base'Access);
      Uptime := Uptime_Base;

   end Get_Uptime;

   procedure Tick (Result : out RTEMS.Status_Codes) is
      function Tick_Base return  RTEMS.Status_Codes;
      pragma Import (C, Tick_Base, "rtems_clock_tick");
   begin

      Result := Tick_Base;

   end Tick;

   function Get_Ticks_Since_Boot
      return RTEMS.Interval
   is
      Watchdog_Ticks_since_boot : RTEMS.Interval;
      pragma Import (
         C,
         Watchdog_Ticks_since_boot,
         "_Watchdog_Ticks_since_boot"
      );
   begin

      return Watchdog_Ticks_since_boot;

   end Get_Ticks_Since_Boot;

end RTEMS.Clock;