From 3e55413dd9a577b7b270e04f09ccb3f13a90a3cb Mon Sep 17 00:00:00 2001 From: charlet Date: Fri, 14 May 2004 10:02:00 +0000 Subject: Renaming of target specific files for clarity * Makefile.in: Rename GNAT target specific files. * 31soccon.ads, 31soliop.ads 35soccon.ads, 3asoccon.ads, 3bsoccon.ads, 3gsoccon.ads, 3hsoccon.ads, 3psoccon.ads, 3ssoccon.ads, 3ssoliop.ads, 3veacodu.adb, 3vexpect.adb, 3vsoccon.ads, 3vsocthi.adb, 3vsocthi.ads, 3vtrasym.adb, 3wsoccon.ads, 3wsocthi.adb, 3wsocthi.ads, 3wsoliop.ads, 3zsoccon.ads, 3zsocthi.adb, 3zsocthi.ads, 41intnam.ads, 42intnam.ads, 45intnam.ads, 4aintnam.ads, 4cintnam.ads, 4gintnam.ads, 4hexcpol.adb, 4hintnam.ads, 4lintnam.ads, 4nintnam.ads, 4ointnam.ads, 4onumaux.ads, 4pintnam.ads, 4sintnam.ads, 4vcaldel.adb, 4vcalend.adb, 4vcalend.ads, 4vintnam.ads, 4wcalend.adb, 4wexcpol.adb, 4wintnam.ads, 4zintnam.ads, 4znumaux.ads, 4zsytaco.adb, 4zsytaco.ads, 51osinte.adb, 51osinte.ads, 51system.ads, 52osinte.adb, 52osinte.ads, 53osinte.ads, 54osinte.ads, 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5zosinte.adb, 5zosinte.ads, 5zosprim.adb, 5zparame.ads, 5zstchop.adb, 5zsystem.ads, 5ztaprop.adb, 5ztaspri.ads, 5ztfsetr.adb, 5ztpopsp.adb, 6vcpp.adb, 6vcstrea.adb, 6vinterf.ads, 7sinmaop.adb, 7sintman.adb, 7sosinte.adb, 7sosprim.adb, 7staprop.adb, 7staspri.ads, 7stfsetr.adb, 7stpopsp.adb, 7straceb.adb, 7straces.adb, 7strafor.adb, 7strafor.ads, 7stratas.adb, 86numaux.adb, 86numaux.ads: Replaced by files below. * a-caldel-vms.adb, a-calend-mingw.adb, a-calend-vms.adb, a-calend-vms.ads, a-dirval-mingw.adb, a-dirval-vms.adb, a-excpol-abort.adb, a-excpol-interix.adb, a-intnam-aix.ads, a-intnam-dummy.ads, a-intnam-freebsd.ads, a-intnam-hpux.ads, a-intnam-interix.ads, a-intnam-irix.ads, a-intnam-linux.ads, a-intnam-lynxos.ads, a-intnam-mingw.ads, a-intnam-os2.ads, a-intnam-solaris.ads, a-intnam-tru64.ads, a-intnam-unixware.ads, a-intnam-vms.ads, a-intnam-vxworks.ads, a-numaux-libc-x86.ads, a-numaux-vxworks.ads, a-numaux-x86.adb, a-numaux-x86.ads, a-sytaco-vxworks.adb, a-sytaco-vxworks.ads, 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system-vxworks-mips.ads, system-vxworks-ppc.ads, system-vxworks-sparcv9.ads, system-vxworks-xscale.ads: Replace files above. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@81834 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/ada/a-calend-mingw.adb | 394 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 394 insertions(+) create mode 100644 gcc/ada/a-calend-mingw.adb (limited to 'gcc/ada/a-calend-mingw.adb') diff --git a/gcc/ada/a-calend-mingw.adb b/gcc/ada/a-calend-mingw.adb new file mode 100644 index 00000000000..25f8cc4720b --- /dev/null +++ b/gcc/ada/a-calend-mingw.adb @@ -0,0 +1,394 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUN-TIME COMPONENTS -- +-- -- +-- A D A . C A L E N D A R -- +-- -- +-- B o d y -- +-- -- +-- Copyright (C) 1997-2002 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 2, 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 GNAT; see file COPYING. If not, write -- +-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- +-- MA 02111-1307, 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. -- +-- -- +-- GNAT was originally developed by the GNAT team at New York University. -- +-- Extensive contributions were provided by Ada Core Technologies Inc. -- +-- -- +------------------------------------------------------------------------------ + +-- This is the Windows NT/95 version. + +with System.OS_Primitives; +-- used for Clock + +with System.OS_Interface; + +package body Ada.Calendar is + + use System.OS_Interface; + + ------------------------------ + -- Use of Pragma Unsuppress -- + ------------------------------ + + -- This implementation of Calendar takes advantage of the permission in + -- Ada 95 of using arithmetic overflow checks to check for out of bounds + -- time values. This means that we must catch the constraint error that + -- results from arithmetic overflow, so we use pragma Unsuppress to make + -- sure that overflow is enabled, using software overflow checking if + -- necessary. That way, compiling Calendar with options to suppress this + -- checking will not affect its correctness. + + ------------------------ + -- Local Declarations -- + ------------------------ + + Ada_Year_Min : constant := 1901; + Ada_Year_Max : constant := 2099; + + -- Win32 time constants + + epoch_1970 : constant := 16#19D_B1DE_D53E_8000#; -- win32 UTC epoch + system_time_ns : constant := 100; -- 100 ns per tick + Sec_Unit : constant := 10#1#E9; + + --------- + -- "+" -- + --------- + + function "+" (Left : Time; Right : Duration) return Time is + pragma Unsuppress (Overflow_Check); + begin + return (Left + Time (Right)); + + exception + when Constraint_Error => + raise Time_Error; + end "+"; + + function "+" (Left : Duration; Right : Time) return Time is + pragma Unsuppress (Overflow_Check); + begin + return (Time (Left) + Right); + + exception + when Constraint_Error => + raise Time_Error; + end "+"; + + --------- + -- "-" -- + --------- + + function "-" (Left : Time; Right : Duration) return Time is + pragma Unsuppress (Overflow_Check); + begin + return Left - Time (Right); + + exception + when Constraint_Error => + raise Time_Error; + end "-"; + + function "-" (Left : Time; Right : Time) return Duration is + pragma Unsuppress (Overflow_Check); + begin + return Duration (Left) - Duration (Right); + + exception + when Constraint_Error => + raise Time_Error; + end "-"; + + --------- + -- "<" -- + --------- + + function "<" (Left, Right : Time) return Boolean is + begin + return Duration (Left) < Duration (Right); + end "<"; + + ---------- + -- "<=" -- + ---------- + + function "<=" (Left, Right : Time) return Boolean is + begin + return Duration (Left) <= Duration (Right); + end "<="; + + --------- + -- ">" -- + --------- + + function ">" (Left, Right : Time) return Boolean is + begin + return Duration (Left) > Duration (Right); + end ">"; + + ---------- + -- ">=" -- + ---------- + + function ">=" (Left, Right : Time) return Boolean is + begin + return Duration (Left) >= Duration (Right); + end ">="; + + ----------- + -- Clock -- + ----------- + + -- The Ada.Calendar.Clock function gets the time from the soft links + -- interface which will call the appropriate function depending wether + -- tasking is involved or not. + + function Clock return Time is + begin + return Time (System.OS_Primitives.Clock); + end Clock; + + --------- + -- Day -- + --------- + + function Day (Date : Time) return Day_Number is + DY : Year_Number; + DM : Month_Number; + DD : Day_Number; + DS : Day_Duration; + + begin + Split (Date, DY, DM, DD, DS); + return DD; + end Day; + + ----------- + -- Month -- + ----------- + + function Month (Date : Time) return Month_Number is + DY : Year_Number; + DM : Month_Number; + DD : Day_Number; + DS : Day_Duration; + + begin + Split (Date, DY, DM, DD, DS); + return DM; + end Month; + + ------------- + -- Seconds -- + ------------- + + function Seconds (Date : Time) return Day_Duration is + DY : Year_Number; + DM : Month_Number; + DD : Day_Number; + DS : Day_Duration; + + begin + Split (Date, DY, DM, DD, DS); + return DS; + end Seconds; + + ----------- + -- Split -- + ----------- + + procedure Split + (Date : Time; + Year : out Year_Number; + Month : out Month_Number; + Day : out Day_Number; + Seconds : out Day_Duration) + is + + Date_Int : aliased Long_Long_Integer; + Date_Loc : aliased Long_Long_Integer; + Timbuf : aliased SYSTEMTIME; + Int_Date : Long_Long_Integer; + Sub_Seconds : Duration; + + begin + -- We take the sub-seconds (decimal part) of Date and this is added + -- to compute the Seconds. This way we keep the precision of the + -- high-precision clock that was lost with the Win32 API calls + -- below. + + if Date < 0.0 then + + -- this is a Date before Epoch (January 1st, 1970) + + Sub_Seconds := Duration (Date) - + Duration (Long_Long_Integer (Date + Duration'(0.5))); + + Int_Date := Long_Long_Integer (Date - Sub_Seconds); + + -- For Date = -86400.1 we are 2 days before Epoch at 0.1 seconds + -- from day 1 before Epoch. It means that it is 23h 59m 59.9s. + -- here we adjust for that. + + if Sub_Seconds < 0.0 then + Int_Date := Int_Date - 1; + Sub_Seconds := 1.0 + Sub_Seconds; + end if; + + else + + -- this is a Date after Epoch (January 1st, 1970) + + Sub_Seconds := Duration (Date) - + Duration (Long_Long_Integer (Date - Duration'(0.5))); + + Int_Date := Long_Long_Integer (Date - Sub_Seconds); + + end if; + + -- Date_Int is the number of seconds from Epoch. + + Date_Int := Long_Long_Integer + (Int_Date * Sec_Unit / system_time_ns) + epoch_1970; + + if not FileTimeToLocalFileTime (Date_Int'Access, Date_Loc'Access) then + raise Time_Error; + end if; + + if not FileTimeToSystemTime (Date_Loc'Access, Timbuf'Access) then + raise Time_Error; + end if; + + if Timbuf.wYear not in Ada_Year_Min .. Ada_Year_Max then + raise Time_Error; + end if; + + Seconds := + Duration (Timbuf.wHour) * 3_600.0 + + Duration (Timbuf.wMinute) * 60.0 + + Duration (Timbuf.wSecond) + + Sub_Seconds; + + Day := Integer (Timbuf.wDay); + Month := Integer (Timbuf.wMonth); + Year := Integer (Timbuf.wYear); + end Split; + + ------------- + -- Time_Of -- + ------------- + + function Time_Of + (Year : Year_Number; + Month : Month_Number; + Day : Day_Number; + Seconds : Day_Duration := 0.0) + return Time + is + + Timbuf : aliased SYSTEMTIME; + Now : aliased Long_Long_Integer; + Loc : aliased Long_Long_Integer; + Int_Secs : Integer; + Secs : Integer; + Add_One_Day : Boolean := False; + Date : Time; + + begin + -- The following checks are redundant with respect to the constraint + -- error checks that should normally be made on parameters, but we + -- decide to raise Constraint_Error in any case if bad values come + -- in (as a result of checks being off in the caller, or for other + -- erroneous or bounded error cases). + + if not Year 'Valid + or else not Month 'Valid + or else not Day 'Valid + or else not Seconds'Valid + then + raise Constraint_Error; + end if; + + if Seconds = 0.0 then + Int_Secs := 0; + else + Int_Secs := Integer (Seconds - 0.5); + end if; + + -- Timbuf.wMillisec is to keep the msec. We can't use that because the + -- high-resolution clock has a precision of 1 Microsecond. + -- Anyway the sub-seconds part is not needed to compute the number + -- of seconds in UTC. + + if Int_Secs = 86_400 then + Secs := 0; + Add_One_Day := True; + else + Secs := Int_Secs; + end if; + + Timbuf.wMilliseconds := 0; + Timbuf.wSecond := WORD (Secs mod 60); + Timbuf.wMinute := WORD ((Secs / 60) mod 60); + Timbuf.wHour := WORD (Secs / 3600); + Timbuf.wDay := WORD (Day); + Timbuf.wMonth := WORD (Month); + Timbuf.wYear := WORD (Year); + + if not SystemTimeToFileTime (Timbuf'Access, Loc'Access) then + raise Time_Error; + end if; + + if not LocalFileTimeToFileTime (Loc'Access, Now'Access) then + raise Time_Error; + end if; + + -- Here we have the UTC now translate UTC to Epoch time (UNIX style + -- time based on 1 january 1970) and add there the sub-seconds part. + + declare + Sub_Sec : constant Duration := Seconds - Duration (Int_Secs); + begin + Date := Time ((Now - epoch_1970) * system_time_ns / Sec_Unit) + + Sub_Sec; + end; + + if Add_One_Day then + Date := Date + Duration (86400.0); + end if; + + return Date; + end Time_Of; + + ---------- + -- Year -- + ---------- + + function Year (Date : Time) return Year_Number is + DY : Year_Number; + DM : Month_Number; + DD : Day_Number; + DS : Day_Duration; + + begin + Split (Date, DY, DM, DD, DS); + return DY; + end Year; + +end Ada.Calendar; -- cgit v1.2.1