------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
-- --
-- SYSTEM.BB.CPU_PRIMITIVES.MULTIPROCESSORS --
-- --
-- B o d y --
-- --
-- Copyright (C) 2010-2023, AdaCore --
-- --
-- GNARL is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- ware Foundation; either version 3, or (at your option) any later ver- --
-- sion. GNARL is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE. --
-- --
-- As a special exception under Section 7 of GPL version 3, you are granted --
-- additional permissions described in the GCC Runtime Library Exception, --
-- version 3.1, as published by the Free Software Foundation. --
-- --
-- You should have received a copy of the GNU General Public License and --
-- a copy of the GCC Runtime Library Exception along with this program; --
-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
-- <http://www.gnu.org/licenses/>. --
-- --
------------------------------------------------------------------------------
pragma Restrictions (No_Elaboration_Code);
with System.Multiprocessors;
with System.BB.Board_Support;
with System.BB.Threads;
with System.BB.Threads.Queues;
with System.BB.Protection;
with System.BB.Timing_Events;
with System.BB.Time;
package body System.BB.CPU_Primitives.Multiprocessors is
use System.Multiprocessors;
--------------------
-- Start_All_CPUs --
--------------------
procedure Start_All_CPUs is
begin
-- Nothing to do when there's only one CPU
if System.Multiprocessors.Number_Of_CPUs = 1 then
return;
end if;
System.BB.Board_Support.Multiprocessors.Start_All_CPUs;
end Start_All_CPUs;
------------------
-- Poke_Handler --
------------------
procedure Poke_Handler is
Now : Time.Time;
begin
-- The access to the queues must be protected
Protection.Enter_Kernel;
-- Handle alarms in the case the alarm is system-wide
Now := Time.Clock;
-- Execute expired events of the current CPU
Timing_Events.Execute_Expired_Timing_Events (Now);
-- Wake up alarms
Threads.Queues.Wakeup_Expired_Alarms (Now);
Protection.Leave_Kernel;
end Poke_Handler;
end System.BB.CPU_Primitives.Multiprocessors;