-- --
-- B o d y --
-- --
--- Copyright (C) 1991-2005 Free Software Foundation, Inc. --
+-- Copyright (C) 1991-2009, Free Software Foundation, Inc. --
-- --
-- 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 2, or (at your option) any later ver- --
--- sion. GNARL is distributed in the hope that it will be useful, but WITH- --
+-- 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. See the GNU General Public License --
--- for more details. You should have received a copy of the GNU General --
--- Public License distributed with GNARL; see file COPYING. If not, write --
--- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, USA. --
+-- or FITNESS FOR A PARTICULAR PURPOSE. --
-- --
--- As a special exception, if other files instantiate generics from this --
--- unit, or you link this unit with other files to produce an executable, --
--- this unit does not by itself cause the resulting executable to be --
--- covered by the GNU General Public License. This exception does not --
--- however invalidate any other reasons why the executable file might be --
--- covered by the GNU Public License. --
+-- 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 --
package body System.OS_Interface is
+ -----------
+ -- Errno --
+ -----------
+
function Errno return int is
type int_ptr is access all int;
function internal_errno return int_ptr;
pragma Import (C, internal_errno, "__error");
+
begin
return (internal_errno.all);
end Errno;
+ --------------------
+ -- Get_Stack_Base --
+ --------------------
+
function Get_Stack_Base (thread : pthread_t) return Address is
pragma Unreferenced (thread);
begin
return (0);
end Get_Stack_Base;
+ ------------------
+ -- pthread_init --
+ ------------------
+
procedure pthread_init is
begin
null;
return Duration (TS.ts_sec) + Duration (TS.ts_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 a round-up, adjust for positive F
- -- value.
- if F < 0.0 then S := S - 1; F := F + 1.0; end if;
- return timespec'(ts_sec => S,
- ts_nsec => long (Long_Long_Integer (F * 10#1#E9)));
- end To_Timespec;
- function To_Duration (TV : struct_timeval) return Duration is
- begin
- return Duration (TV.tv_sec) + Duration (TV.tv_usec) / 10#1#E6;
- end To_Duration;
-
- function To_Timeval (D : Duration) return struct_timeval is
- S : long;
- F : Duration;
- begin
- S := long (Long_Long_Integer (D));
- F := D - Duration (S);
+ if F < 0.0 then
+ S := S - 1;
+ F := F + 1.0;
+ end if;
- -- If F has negative value due to a round-up, adjust for positive F
- -- value.
- if F < 0.0 then S := S - 1; F := F + 1.0; end if;
- return struct_timeval'(tv_sec => S,
- tv_usec => long (Long_Long_Integer (F * 10#1#E6)));
- end To_Timeval;
+ return timespec'(ts_sec => S,
+ ts_nsec => long (Long_Long_Integer (F * 10#1#E9)));
+ end To_Timespec;
end System.OS_Interface;
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