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Diffstat (limited to 'gcc/ada/s-osinte-unixware.adb')
| -rw-r--r-- | gcc/ada/s-osinte-unixware.adb | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/gcc/ada/s-osinte-unixware.adb b/gcc/ada/s-osinte-unixware.adb new file mode 100644 index 00000000000..9916e8846f4 --- /dev/null +++ b/gcc/ada/s-osinte-unixware.adb @@ -0,0 +1,182 @@ +------------------------------------------------------------------------------ +-- -- +-- 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) 1999-2002 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, 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. -- +-- -- +-- GNARL was developed by the GNARL team at Florida State University. -- +-- Extensive contributions were provided by Ada Core Technologies, Inc. -- +-- -- +------------------------------------------------------------------------------ + +-- This is a UnixWare (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. + +with Interfaces.C; + +package body System.OS_Interface is + + use Interfaces.C; + + ----------------- + -- 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; + + 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; + + ----------------- + -- 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'(tv_sec => S, + tv_nsec => long (Long_Long_Integer (F * 10#1#E9))); + end To_Timespec; + + ---------------- + -- To_Timeval -- + ---------------- + + 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 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; + + ------------------- + -- clock_gettime -- + ------------------- + + function clock_gettime + (clock_id : clockid_t; + tp : access timespec) + return int + is + pragma Warnings (Off, clock_id); + + Result : int; + tv : aliased struct_timeval; + + function gettimeofday + (tv : access struct_timeval; + tz : System.Address := System.Null_Address) + return int; + pragma Import (C, gettimeofday, "gettimeofday"); + + begin + Result := gettimeofday (tv'Unchecked_Access); + tp.all := To_Timespec (To_Duration (tv)); + return Result; + end clock_gettime; + + --------------------------- + -- POSIX.1c Section 3 -- + --------------------------- + + function sigwait (set : access sigset_t; sig : access Signal) return int is + Result : int; + + function sigwait (set : access sigset_t) return int; + pragma Import (C, sigwait, "sigwait"); + + begin + Result := sigwait (set); + + if Result < 0 then + sig.all := 0; + return errno; + end if; + + sig.all := Signal (Result); + return 0; + end sigwait; + + function pthread_kill (thread : pthread_t; sig : Signal) return int is + function pthread_kill_base + (thread : access pthread_t; sig : access Signal) return int; + pragma Import (C, pthread_kill_base, "pthread_kill"); + + thr : aliased pthread_t := thread; + signo : aliased Signal := sig; + + begin + return pthread_kill_base (thr'Unchecked_Access, signo'Unchecked_Access); + end pthread_kill; + + function Get_Stack_Base (thread : pthread_t) return Address is + pragma Warnings (Off, thread); + + begin + return Null_Address; + end Get_Stack_Base; + + procedure pthread_init is + begin + null; + end pthread_init; + +end System.OS_Interface; |