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author | Arnaud Charlet <charlet@act-europe.fr> | 2003-11-20 18:53:13 +0100 |
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committer | Arnaud Charlet <charlet@gcc.gnu.org> | 2003-11-20 18:53:13 +0100 |
commit | c5b2a8ae6ceefc7ee6810d29a9d84e32ec40b068 (patch) | |
tree | 9956d5bddf5a977f9516d718780a94cfb8d9d4be /gcc/ada/55osinte.adb | |
parent | 93352ff5169fb2f190472bcda458a9d39e87f97b (diff) | |
download | gcc-c5b2a8ae6ceefc7ee6810d29a9d84e32ec40b068.zip gcc-c5b2a8ae6ceefc7ee6810d29a9d84e32ec40b068.tar.gz gcc-c5b2a8ae6ceefc7ee6810d29a9d84e32ec40b068.tar.bz2 |
35soccon.ads, [...]: New file, FreeBSD version.
* 35soccon.ads, 45intnam.ads, 55osinte.adb, 55osinte.ads,
56system.ads: New file, FreeBSD version.
From-SVN: r73766
Diffstat (limited to 'gcc/ada/55osinte.adb')
-rw-r--r-- | gcc/ada/55osinte.adb | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/gcc/ada/55osinte.adb b/gcc/ada/55osinte.adb new file mode 100644 index 0000000..466a15d --- /dev/null +++ b/gcc/ada/55osinte.adb @@ -0,0 +1,108 @@ +------------------------------------------------------------------------------ +-- -- +-- GNU ADA RUNTIME 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) 1991-2003 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. It is -- +-- now maintained by Ada Core Technologies Inc. in cooperation with Florida -- +-- State University (http://www.gnat.com). -- +-- -- +------------------------------------------------------------------------------ + +-- This is the FreeBSD THREADS version of this package + +with Interfaces.C; use Interfaces.C; + +package body System.OS_Interface is + + 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; + + function Get_Stack_Base (thread : pthread_t) return Address is + pragma Unreferenced (thread); + begin + return (0); + end Get_Stack_Base; + + procedure pthread_init is + begin + null; + end pthread_init; + + ----------------- + -- To_Duration -- + ----------------- + + function To_Duration (TS : timespec) return Duration is + begin + return Duration (TS.ts_sec) + Duration (TS.ts_nsec) / 10#1#E9; + 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'(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 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; + +end System.OS_Interface; |