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| author | Arnaud Charlet <charlet@gcc.gnu.org> | 2011-08-29 12:58:32 +0200 |
|---|---|---|
| committer | Arnaud Charlet <charlet@gcc.gnu.org> | 2011-08-29 12:58:32 +0200 |
| commit | 718f39dcc150d25458c3f49e08c5114dbfec64e8 (patch) | |
| tree | 6e1b74a6ffa6d93257d6fe4f61aa7566838333fe /gcc/ada/a-synbar.ads | |
| parent | ee2e3f6bb4978d0b148e7458dd6915dbc28fdaf3 (diff) | |
| download | gcc-718f39dcc150d25458c3f49e08c5114dbfec64e8.zip gcc-718f39dcc150d25458c3f49e08c5114dbfec64e8.tar.gz gcc-718f39dcc150d25458c3f49e08c5114dbfec64e8.tar.bz2 | |
[multiple changes]
2011-08-29 Tristan Gingold <gingold@adacore.com>
* s-interr-hwint.adb: Revert previous patch (defer aborts in ZCX case).
2011-08-29 Geert Bosch <bosch@adacore.com>
* a-ngelfu.adb (Tan): Do not raise Constraint_Error if the argument is
the closest machine number to Pi / 2.0.
2011-08-29 Jose Ruiz <ruiz@adacore.com>
* impunit.adb (Non_Imp_File_Names_12): Add a-synbar for new Ada 2012
package Ada.Synchronous_Barriers.
* a-synbar.ads, a-synbar.adb, a-synbar-posix.ads, a-synbar-posix.adb:
Add new specs and bodies for Ada.Synchronous_Barriers. There is a
default implementation using protected objects and another one
a-synbar-posix using POSIX barriers as the underlying support.
* gcc-interface/Makefile.in (LIBGNAT_TARGET_PAIRS for Linux (x86,
x86_64, ia64) and MIPS IRIX): Use the a-synbar-posix implementation of
Ada.Synchronous_Barriers which uses POSIX barriers (more efficient).
* Makefile.rtl (GNATRTL_TASKING_OBJS): Add a-synbar.o
From-SVN: r178200
Diffstat (limited to 'gcc/ada/a-synbar.ads')
| -rw-r--r-- | gcc/ada/a-synbar.ads | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/gcc/ada/a-synbar.ads b/gcc/ada/a-synbar.ads new file mode 100644 index 0000000..c450624 --- /dev/null +++ b/gcc/ada/a-synbar.ads @@ -0,0 +1,53 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUN-TIME COMPONENTS -- +-- -- +-- A D A . S Y N C H R O N O U S _ B A R R I E R S -- +-- -- +-- S p e c -- +-- -- +-- Copyright (C) 1992-2011, Free Software Foundation, Inc. -- +-- -- +-- This specification is derived from the Ada Reference Manual for use with -- +-- GNAT. The copyright notice above, and the license provisions that follow -- +-- apply solely to the contents of the part following the private keyword. -- +-- -- +-- 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 3, 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. -- +-- -- +-- As a special exception under Section 7 of GPL version 3, you are granted -- +-- additional permissions described in the GCC Runtime Library Exception, -- +-- version 3.1, as published by the Free Software Foundation. -- +-- -- +-- You should have received a copy of the GNU General Public License and -- +-- a copy of the GCC Runtime Library Exception along with this program; -- +-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- +-- <http://www.gnu.org/licenses/>. -- +-- -- +-- GNAT was originally developed by the GNAT team at New York University. -- +-- Extensive contributions were provided by Ada Core Technologies Inc. -- +-- -- +------------------------------------------------------------------------------ + +package Ada.Synchronous_Barriers is + pragma Preelaborate (Synchronous_Barriers); + + subtype Barrier_Limit is Positive range 1 .. Positive'Last; + + type Synchronous_Barrier (Release_Threshold : Barrier_Limit) is + limited private; + + procedure Wait_For_Release (The_Barrier : in out Synchronous_Barrier; + Notified : out Boolean); + +private + protected type Synchronous_Barrier (Release_Threshold : Barrier_Limit) is + entry Wait (Notified : out Boolean); + private + Keep_Open : Boolean := False; + end Synchronous_Barrier; +end Ada.Synchronous_Barriers; |