3b91d88ea1
* a-calend-mingw.adb: Add call to OS_Primitives.Initialize; * s-taprop-mingw.adb, s-taprop-vms.adb, s-taprop-solaris.adb, s-taprop-os2.adb, s-taprop-irix-athread.adb, s-taprop-linux.adb, s-taprop-hpux-dce.adb, s-taprop-irix.adb, s-taprop-tru64.adb, s-taprop-lynxos.adb: Move with clauses outside Warnings Off now that dependent units are Preelaborate. (Initialize): Call Interrupt_Managemeent.Initialize and OS_Primitives.Initialize to ensure proper initialization of this unit. Remove use of System.Soft_Links Make this unit Preelaborate. * s-stache.ads, s-taspri-vxworks.ads, s-taspri-mingw.ads, s-taspri-vms.ads, s-tasinf-solaris.ads, s-taspri-os2.ads, s-taspri-lynxos.ads, s-taspri-hpux-dce.ads, s-taspri-tru64.ads, s-tasinf-tru64.ads, s-tasinf-irix.ads, s-tasinf-irix-athread.ads, s-proinf-irix-athread.adb, s-proinf-irix-athread.ads, s-tratas.ads, s-tasinf.ads: Minor reformatting. Add pragma Preelaborate, since these packages are suitable for this categorization. Update comments. * s-traent-vms.ads, s-intman-dummy.adb, s-taprop-dummy.adb: Make this unit Preelaborate. * s-osprim-vxworks.adb, s-osprim-vms.adb, s-osprim-vms.ads, s-osprim-mingw.adb, s-intman-vxworks.ads, s-intman-vxworks.adb, s-intman-vms.adb, s-intman-mingw.adb, s-intman-vms.ads, s-osprim-unix.adb, s-osprim-os2.adb, s-osprim-solaris.adb, s-intman-solaris.adb, s-intman-irix-athread.adb, s-intman-irix.adb: Mark this unit Preelaborate. (Initialize): New procedure. Update comments. * s-taspri-linux.ads: Removed. * s-tpopsp-solaris.adb (Initialize): Create the key in this procedure, as done by other implementations (e.g. posix). * s-taprop.ads (Timed_Delay): Update spec since the caller now is responsible for deferring abort. Mark this unit Preelaborate. * s-taprob.adb, s-tarest.adb: Call System.Tasking.Initialize to ensure proper initialization of the tasking run-time. * s-tasdeb.ads: Mark this unit Preelaborate. (Known_Tasks): Add explicit default value to avoid elaboration code. * s-inmaop-vms.adb (Elaboration code): Add call to Interrupt_Management.Initialize since the elaboration code depends on proper initialization of this package. * s-intman.ads, s-inmaop-posix.adb, s-intman-posix.adb, s-osprim.ads, s-taprop-posix.adb, s-taspri-posix.ads, s-osprim-posix.adb: Make this unit Preelaborate. * a-calend.adb: Add call to OS_Primitives.Initialize * a-elchha.adb: Update use of Except.Id.Full_Name. Minor reformatting. Remove use of Ada.Exceptions.Traceback when possible, cleaner. * a-dynpri.adb, a-sytaco.adb, a-sytaco.ads: Move with clauses outside Warnings Off now that dependent units are Preelaborate. Use raise xxx with "..."; Ada 2005 form. * a-taside.ads, a-taside.adb: Remove some dependencies, to make it easier to make this unit truly Preelaborate. Rewrite some code to be conformant with Preelaborate rules. * g-os_lib.adb: Remove non-preelaborate code so that this unit can be marked Preelaborate in the future. * s-proinf.ads, g-string.ads, s-auxdec.ads, s-auxdec-vms_64.ads: Make these units Preelaborate. * s-exctab.adb: Update use of Except.Id.Full_Name. * s-soflin.ads, s-soflin.adb: Mark this unit Preelaborate_05. (Set_Exc_Stack_Addr_Soft, Get_Exc_Stack_Addr_NT, Set_Exc_Stack_Addr_NT, Set_Exc_Stack_Addr): Removed, no longer used. Remove reference to *Machine_State_Addr*, no longer needed. * s-stalib.ads: Mark this unit as Preelaborate[_05]. (Exception_Data): Full_Name is now a System.Address so that this unit can be made Preelaborate. Clean up/simplify code thanks to Full_Name being a System.Address. Remove obsolete pragma Suppress (All_Checks), no longer needed. * s-taskin.ads, s-taskin.adb: Move with clauses outside Warnings Off now that dependent units are Preelaborate. Make this unit Preelaborate. (Initialize): New proceduure, replace elaboration code and makes the set up of the tasking run-time cleaner. (Detect_Blocking): Now a function instead of a deferred boolean, to obey Preelaborate rules. * s-tassta.adb (Finalize_Global_Tasks): Remove Get/Set_Exc_Stack_Addr soft links, no longer used. * s-traces.ads, s-traent.ads: Add pragma Preelaborate, since these packages are suitable for this categorization. * s-solita.adb: Replace use of Ada.Exception by raise xxx with "..." since we compile run-time sources in Ada 2005 mode. (Timed_Delay_T): Call Abort_Defer/Undefer around Timed_Delay, to avoid having s-taprop*.adb depend on s-soflin and to avoid code duplication. Remove reference to *Machine_State_Addr*, no longer needed. From-SVN: r103847
134 lines
4.9 KiB
Ada
134 lines
4.9 KiB
Ada
------------------------------------------------------------------------------
|
|
-- --
|
|
-- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
|
|
-- --
|
|
-- S Y S T E M . O S _ P R I M I T I V E S --
|
|
-- --
|
|
-- B o d y --
|
|
-- --
|
|
-- Copyright (C) 1998-2005 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- --
|
|
-- 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, 51 Franklin Street, Fifth Floor, --
|
|
-- Boston, MA 02110-1301, USA. --
|
|
-- --
|
|
-- 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. --
|
|
-- --
|
|
-- GNARL was developed by the GNARL team at Florida State University. --
|
|
-- Extensive contributions were provided by Ada Core Technologies Inc. --
|
|
-- --
|
|
------------------------------------------------------------------------------
|
|
|
|
-- This version uses gettimeofday and select
|
|
-- This file is suitable for OpenNT, Dec Unix and SCO UnixWare.
|
|
|
|
package body System.OS_Primitives is
|
|
|
|
-- ??? These definitions are duplicated from System.OS_Interface
|
|
-- because we don't want to depend on any package. Consider removing
|
|
-- these declarations in System.OS_Interface and move these ones in
|
|
-- the spec.
|
|
|
|
type struct_timeval is record
|
|
tv_sec : Integer;
|
|
tv_usec : Integer;
|
|
end record;
|
|
pragma Convention (C, struct_timeval);
|
|
|
|
procedure gettimeofday
|
|
(tv : access struct_timeval;
|
|
tz : Address := Null_Address);
|
|
pragma Import (C, gettimeofday, "gettimeofday");
|
|
|
|
procedure C_select
|
|
(n : Integer := 0;
|
|
readfds,
|
|
writefds,
|
|
exceptfds : Address := Null_Address;
|
|
timeout : access struct_timeval);
|
|
pragma Import (C, C_select, "select");
|
|
|
|
-----------
|
|
-- Clock --
|
|
-----------
|
|
|
|
function Clock return Duration is
|
|
TV : aliased struct_timeval;
|
|
|
|
begin
|
|
gettimeofday (TV'Access);
|
|
return Duration (TV.tv_sec) + Duration (TV.tv_usec) / 10#1#E6;
|
|
end Clock;
|
|
|
|
---------------------
|
|
-- Monotonic_Clock --
|
|
---------------------
|
|
|
|
function Monotonic_Clock return Duration renames Clock;
|
|
|
|
-----------------
|
|
-- Timed_Delay --
|
|
-----------------
|
|
|
|
procedure Timed_Delay
|
|
(Time : Duration;
|
|
Mode : Integer)
|
|
is
|
|
Rel_Time : Duration;
|
|
Abs_Time : Duration;
|
|
Check_Time : Duration := Clock;
|
|
timeval : aliased struct_timeval;
|
|
|
|
begin
|
|
if Mode = Relative then
|
|
Rel_Time := Time;
|
|
Abs_Time := Time + Check_Time;
|
|
else
|
|
Rel_Time := Time - Check_Time;
|
|
Abs_Time := Time;
|
|
end if;
|
|
|
|
if Rel_Time > 0.0 then
|
|
loop
|
|
timeval.tv_sec := Integer (Rel_Time);
|
|
|
|
if Duration (timeval.tv_sec) > Rel_Time then
|
|
timeval.tv_sec := timeval.tv_sec - 1;
|
|
end if;
|
|
|
|
timeval.tv_usec :=
|
|
Integer ((Rel_Time - Duration (timeval.tv_sec)) * 10#1#E6);
|
|
|
|
C_select (timeout => timeval'Unchecked_Access);
|
|
Check_Time := Clock;
|
|
|
|
exit when Abs_Time <= Check_Time;
|
|
|
|
Rel_Time := Abs_Time - Check_Time;
|
|
end loop;
|
|
end if;
|
|
end Timed_Delay;
|
|
|
|
----------------
|
|
-- Initialize --
|
|
----------------
|
|
|
|
procedure Initialize is
|
|
begin
|
|
null;
|
|
end Initialize;
|
|
|
|
end System.OS_Primitives;
|