File : posix-process_times.adb


------------------------------------------------------------------------------
--                                                                          --
--            FLORIST (FSU Implementation of POSIX.5) COMPONENTS            --
--                                                                          --
--                   P O S I X . P R O C E S S _ T I M E S                  --
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--                                  B o d y                                 --
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--  Copyright (c) 1996-1998                Florida State University (FSU),  --
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--                                                                          --
--  This file is a component of FLORIST, an  implementation of an  Ada API  --
--  for the POSIX OS services, for use with  the  GNAT  Ada  compiler  and  --
--  the FSU Gnu Ada Runtime Library (GNARL).   The  interface  is intended  --
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--  1003.5b: 1996.                                                          --
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------------------------------------------------------------------------------
--  [$Revision: 1.1.1.1 $]


with POSIX.C;
package body POSIX.Process_Times is

   use POSIX.C;

   -------------------------
   --  Elapsed_Real_Time  --
   -------------------------

   function times (buf : tms_ptr) return clock_t;
   pragma Import (C, times, times_LINKNAME);

   function Elapsed_Real_Time return Tick_Count is
      T : Process_Times;
   begin
      return Tick_Count (times (T.tms'Unchecked_Access));
   end Elapsed_Real_Time;

   -------------------------
   --  Get_Process_Times  --
   -------------------------

   function Get_Process_Times return Process_Times is
      t : Process_Times;
   begin
      t.Elapsed_Real_Time := times (t.tms'Unchecked_Access);
      return Process_Times (t);
   end Get_Process_Times;

   ----------------------------
   --  Elapsed_Real_Time_Of  --
   ----------------------------

   function Elapsed_Real_Time_Of (Times : Process_Times) return Tick_Count is
   begin
      return Tick_Count (Times.Elapsed_Real_Time);
   end Elapsed_Real_Time_Of;

   -----------------------
   --  User_CPU_Time_Of --
   -----------------------

   function User_CPU_Time_Of (Times : Process_Times) return Tick_Count is
   begin
      return Tick_Count (Times.tms.tms_utime);
   end User_CPU_Time_Of;

   --------------------------
   --  System_CPU_Time_Of  --
   --------------------------

   function System_CPU_Time_Of (Times : Process_Times) return Tick_Count is
   begin
      return Tick_Count (Times.tms.tms_stime);
   end System_CPU_Time_Of;

   ------------------------------------
   --  Descendants_User_CPU_Time_Of  --
   ------------------------------------

   function Descendants_User_CPU_Time_Of (Times : Process_Times)
      return Tick_Count is
   begin
      return Tick_Count (Times.tms.tms_cutime);
   end Descendants_User_CPU_Time_Of;

   --------------------------------------
   --  Descendants_System_CPU_Time_Of  --
   --------------------------------------

   function Descendants_System_CPU_Time_Of (Times : Process_Times)
      return Tick_Count is
   begin
      return Tick_Count (Times.tms.tms_cstime);
   end Descendants_System_CPU_Time_Of;

end POSIX.Process_Times;