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| author | David Robillard <d@drobilla.net> | 2007-07-24 19:26:47 +0000 |
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| committer | David Robillard <d@drobilla.net> | 2007-07-24 19:26:47 +0000 |
| commit | 3b4a308ff647def75e647ac8f97e1e48b57672c3 (patch) | |
| tree | a33e3a5c78f2ee7f23e151f39fe17ab39b0b81c8 /raul/AtomicInt.hpp | |
| parent | fcb302e6248527b2f1fb655f4d0a64af18f5f059 (diff) | |
| download | raul-3b4a308ff647def75e647ac8f97e1e48b57672c3.tar.gz raul-3b4a308ff647def75e647ac8f97e1e48b57672c3.tar.bz2 raul-3b4a308ff647def75e647ac8f97e1e48b57672c3.zip | |
Consistently rename all C++ files .cpp/.hpp.
Fix (some) inclusion guard names to not clash with other libs.
git-svn-id: http://svn.drobilla.net/lad/raul@613 a436a847-0d15-0410-975c-d299462d15a1
Diffstat (limited to 'raul/AtomicInt.hpp')
| -rw-r--r-- | raul/AtomicInt.hpp | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/raul/AtomicInt.hpp b/raul/AtomicInt.hpp new file mode 100644 index 0000000..70191cb --- /dev/null +++ b/raul/AtomicInt.hpp @@ -0,0 +1,84 @@ +/* This file is part of Raul. + * Copyright (C) 2007 Dave Robillard <http://drobilla.net> + * + * Raul 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 of the License, or (at your option) any later + * version. + * + * Raul 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 details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef RAUL_ATOMIC_INT_HPP +#define RAUL_ATOMIC_INT_HPP + +#include <glib.h> + +namespace Raul { + + +class AtomicInt { +public: + + inline AtomicInt(int val) + { g_atomic_int_set(&_val, val); } + + inline AtomicInt(const AtomicInt& copy) + { g_atomic_int_set(&_val, copy.get()); } + + inline int get() const + { return g_atomic_int_get(&_val); } + + inline void operator=(int val) + { g_atomic_int_set(&_val, val); } + + inline void operator+=(int val) + { g_atomic_int_add(&_val, val); } + + inline void operator-=(int val) + { g_atomic_int_add(&_val, -val); } + + inline bool operator==(int val) const + { return get() == val; } + + inline int operator+(int val) const + { return get() + val; } + + inline AtomicInt& operator++() // prefix + { g_atomic_int_inc(&_val); return *this; } + + inline AtomicInt& operator--() // prefix + { g_atomic_int_add(&_val, -1); return *this; } + + /** Set value to newval iff current value is oldval. + * @return whether set succeeded. + */ + inline bool compare_and_exchange(int oldval, int newval) + { return g_atomic_int_compare_and_exchange(&_val, oldval, newval); } + + /** Add val to value. + * @return value immediately before addition took place. + */ + inline int exchange_and_add(int val) + { return g_atomic_int_exchange_and_add(&_val, val); } + + /** Decrement value. + * @return true if value is now 0, otherwise false. + */ + inline bool decrement_and_test() + { return g_atomic_int_dec_and_test(&_val); } + +private: + volatile int _val; +}; + + +} // namespace Raul + +#endif // RAUL_ATOMIC_INT_HPP |