diff options
Diffstat (limited to 'contrib/libstdc++/config/os/irix/irix6.5/bits/atomicity.h')
-rw-r--r-- | contrib/libstdc++/config/os/irix/irix6.5/bits/atomicity.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/contrib/libstdc++/config/os/irix/irix6.5/bits/atomicity.h b/contrib/libstdc++/config/os/irix/irix6.5/bits/atomicity.h new file mode 100644 index 0000000..c7f5c83 --- /dev/null +++ b/contrib/libstdc++/config/os/irix/irix6.5/bits/atomicity.h @@ -0,0 +1,50 @@ +// Low-level functions for atomic operations: IRIX version -*- C++ -*- + +// Copyright (C) 2000, 2001 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 2, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT 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 along +// with this library; see the file COPYING. If not, write to the Free +// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, +// USA. + +// As a special exception, you may use this file as part of a free software +// library without restriction. Specifically, if other files instantiate +// templates or use macros or inline functions from this file, or you compile +// this file and link it with other files to produce an executable, this +// file 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 General Public License. + +#ifndef _BITS_ATOMICITY_H +#define _BITS_ATOMICITY_H 1 + +#include <mutex.h> + +typedef long _Atomic_word; + +static inline _Atomic_word +__exchange_and_add (_Atomic_word* __mem, int __val) +{ + return (_Atomic_word) test_then_add ((unsigned long*) __mem, __val); +} + + +static inline void +__atomic_add (_Atomic_word* __mem, int __val) +{ + __exchange_and_add (__mem, __val); +} + +#endif /* atomicity.h */ |