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author | Jing Yu <jingyu@google.com> | 2011-12-19 16:56:54 -0800 |
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committer | Jing Yu <jingyu@google.com> | 2011-12-19 16:56:54 -0800 |
commit | 40d7cd0fd78fe2004e2a53c4618c148339b02733 (patch) | |
tree | 5874557a6c86a1f564a03e5f28b266e31bc3759c /gcc-4.6/gcc/ada/g-boubuf.adb | |
parent | fe2afdf3f3701489c05d2a7509752d6f0c7616f7 (diff) | |
download | toolchain_gcc-40d7cd0fd78fe2004e2a53c4618c148339b02733.tar.gz toolchain_gcc-40d7cd0fd78fe2004e2a53c4618c148339b02733.tar.bz2 toolchain_gcc-40d7cd0fd78fe2004e2a53c4618c148339b02733.zip |
Add gcc-4.6. Synced to @180989
Change-Id: Ie3676586e1d8e3c8cd9f07d022f450d05fa08439
svn://gcc.gnu.org/svn/gcc/branches/google/gcc-4_6-mobile
Diffstat (limited to 'gcc-4.6/gcc/ada/g-boubuf.adb')
-rw-r--r-- | gcc-4.6/gcc/ada/g-boubuf.adb | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/gcc-4.6/gcc/ada/g-boubuf.adb b/gcc-4.6/gcc/ada/g-boubuf.adb new file mode 100644 index 000000000..a8ac5f1a9 --- /dev/null +++ b/gcc-4.6/gcc/ada/g-boubuf.adb @@ -0,0 +1,92 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT COMPILER COMPONENTS -- +-- -- +-- G N A T . B O U N D E D _ B U F F E R S -- +-- -- +-- B o d y -- +-- -- +-- Copyright (C) 2003-2006, AdaCore -- +-- -- +-- 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, 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. -- +-- -- +-- GNAT is maintained by Ada Core Technologies Inc (http://www.gnat.com). -- +-- -- +------------------------------------------------------------------------------ + +package body GNAT.Bounded_Buffers is + + -------------------- + -- Bounded_Buffer -- + -------------------- + + protected body Bounded_Buffer is + + ------------ + -- Insert -- + ------------ + + entry Insert (Item : Element) when Count /= Capacity is + begin + Values (Next_In) := Item; + Next_In := (Next_In mod Capacity) + 1; + Count := Count + 1; + end Insert; + + ------------ + -- Remove -- + ------------ + + entry Remove (Item : out Element) when Count > 0 is + begin + Item := Values (Next_Out); + Next_Out := (Next_Out mod Capacity) + 1; + Count := Count - 1; + end Remove; + + ----------- + -- Empty -- + ----------- + + function Empty return Boolean is + begin + return Count = 0; + end Empty; + + ---------- + -- Full -- + ---------- + + function Full return Boolean is + begin + return Count = Capacity; + end Full; + + ------------ + -- Extent -- + ------------ + + function Extent return Natural is + begin + return Count; + end Extent; + + end Bounded_Buffer; + +end GNAT.Bounded_Buffers; |