135 lines
5.0 KiB
Ada
135 lines
5.0 KiB
Ada
------------------------------------------------------------------------------
|
|
-- --
|
|
-- GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS --
|
|
-- --
|
|
-- S Y S T E M . O S _ I N T E R F A C E --
|
|
-- --
|
|
-- B o d y --
|
|
-- --
|
|
-- Copyright (C) 1991-2017, Florida State University --
|
|
-- Copyright (C) 1995-2020, Free Software Foundation, Inc. --
|
|
-- --
|
|
-- GNAT 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. GNAT 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/>. --
|
|
-- --
|
|
-- GNARL was developed by the GNARL team at Florida State University. It is --
|
|
-- now maintained by Ada Core Technologies Inc. in cooperation with Florida --
|
|
-- State University (http://www.gnat.com). --
|
|
-- --
|
|
-- The GNARL files that were developed for RTEMS are maintained by On-Line --
|
|
-- Applications Research Corporation (http://www.oarcorp.com) in coopera- --
|
|
-- tion with Ada Core Technologies Inc. and Florida State University. --
|
|
-- --
|
|
------------------------------------------------------------------------------
|
|
|
|
-- This is the RTEMS version of this package
|
|
|
|
-- This package encapsulates all direct interfaces to OS services
|
|
-- that are needed by children of System.
|
|
|
|
with Interfaces.C; use Interfaces.C;
|
|
|
|
package body System.OS_Interface is
|
|
|
|
-----------------
|
|
-- To_Duration --
|
|
-----------------
|
|
|
|
function To_Duration (TS : timespec) return Duration is
|
|
begin
|
|
return Duration (TS.tv_sec) + Duration (TS.tv_nsec) / 10#1#E9;
|
|
end To_Duration;
|
|
|
|
------------------------
|
|
-- To_Target_Priority --
|
|
------------------------
|
|
|
|
function To_Target_Priority
|
|
(Prio : System.Any_Priority) return Interfaces.C.int
|
|
is
|
|
begin
|
|
return Interfaces.C.int (Prio);
|
|
end To_Target_Priority;
|
|
|
|
-----------------
|
|
-- To_Timespec --
|
|
-----------------
|
|
|
|
function To_Timespec (D : Duration) return timespec is
|
|
S : time_t;
|
|
F : Duration;
|
|
begin
|
|
S := time_t (Long_Long_Integer (D));
|
|
F := D - Duration (S);
|
|
|
|
-- If F has negative value due to round-up, adjust for positive F value
|
|
|
|
if F < 0.0 then
|
|
S := S - 1;
|
|
F := F + 1.0;
|
|
end if;
|
|
return timespec'(tv_sec => S,
|
|
tv_nsec => long (Long_Long_Integer (F * 10#1#E9)));
|
|
end To_Timespec;
|
|
|
|
------------------
|
|
-- pthread_init --
|
|
------------------
|
|
|
|
procedure pthread_init is
|
|
begin
|
|
null;
|
|
end pthread_init;
|
|
|
|
--------------------
|
|
-- Get_Stack_Base --
|
|
--------------------
|
|
|
|
function Get_Stack_Base (thread : pthread_t) return Address is
|
|
pragma Warnings (Off, thread);
|
|
|
|
begin
|
|
return Null_Address;
|
|
end Get_Stack_Base;
|
|
|
|
-----------------
|
|
-- sigaltstack --
|
|
-----------------
|
|
|
|
function sigaltstack
|
|
(ss : not null access stack_t;
|
|
oss : access stack_t) return int is
|
|
pragma Unreferenced (ss);
|
|
pragma Unreferenced (oss);
|
|
begin
|
|
return 0;
|
|
end sigaltstack;
|
|
|
|
-----------------------------------
|
|
-- pthread_rwlockattr_setkind_np --
|
|
-----------------------------------
|
|
|
|
function pthread_rwlockattr_setkind_np
|
|
(attr : access pthread_rwlockattr_t;
|
|
pref : int) return int is
|
|
pragma Unreferenced (attr);
|
|
pragma Unreferenced (pref);
|
|
begin
|
|
return 0;
|
|
end pthread_rwlockattr_setkind_np;
|
|
|
|
end System.OS_Interface;
|