-- --
-- B o d y --
-- --
--- Copyright (C) 1997-2006, Free Software Fundation, Inc. --
+-- Copyright (C) 1997-2007, 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- --
-- This is a AIX (Native) version of this package
pragma Polling (Off);
--- Turn off polling, we do not want ATC polling to take place during
--- tasking operations. It causes infinite loops and other problems.
+-- Turn off polling, we do not want ATC polling to take place during tasking
+-- operations. It causes infinite loops and other problems.
package body System.OS_Interface is
function To_Target_Priority
(Prio : System.Any_Priority) return Interfaces.C.int
is
+ Dispatching_Policy : Character;
+ pragma Import (C, Dispatching_Policy, "__gl_task_dispatching_policy");
+
begin
- -- Priorities on AIX are defined in the range 1 .. 127, so we
- -- map 0 .. 126 to 1 .. 127.
+ -- For the case SCHED_OTHER the only valid priority across all supported
+ -- versions of AIX is 1. Otherwise, for SCHED_RR and SCHED_FIFO, the
+ -- system defines priorities in the range 1 .. 127. This means that we
+ -- must map System.Any_Priority in the range 0 .. 126 to 1 .. 127.
- return Interfaces.C.int (Prio) + 1;
+ if Dispatching_Policy = ' ' then
+ return 1;
+ else
+ return Interfaces.C.int (Prio) + 1;
+ end if;
end To_Target_Priority;
-----------------
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 is negative due to a round-up, adjust for positive F value
if F < 0.0 then
S := S - 1;
S := long (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 is negative due to a round-up, adjust for positive F value
if F < 0.0 then
S := S - 1;