RAUL 0.8.0

- Main Page
- Modules
- Namespaces
- Classes
- Files

- File List

AtomicInt.hpp

    00001 /* This file is part of Raul.
    00002  * Copyright (C) 2007-2009 David Robillard <http://drobilla.net>
    00003  *
    00004  * Raul is free software; you can redistribute it and/or modify it under the
    00005  * terms of the GNU General Public License as published by the Free Software
    00006  * Foundation; either version 2 of the License, or (at your option) any later
    00007  * version.
    00008  *
    00009  * Raul is distributed in the hope that it will be useful, but WITHOUT ANY
    00010  * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
    00011  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for details.
    00012  *
    00013  * You should have received a copy of the GNU General Public License along
    00014  * with this program; if not, write to the Free Software Foundation, Inc.,
    00015  * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
    00016  */
    00017
    00018 #ifndef RAUL_ATOMIC_INT_HPP
    00019 #define RAUL_ATOMIC_INT_HPP
    00020
    00021 #include <glib.h>
    00022
    00023 namespace Raul {
    00024
    00025
    00029 class AtomicInt {
    00030 public:
    00031     inline AtomicInt(int val)
    00032         { g_atomic_int_set(static_cast<volatile gint*>(&_val), val); }
    00033
    00034     inline AtomicInt(const AtomicInt& copy)
    00035         { g_atomic_int_set(static_cast<volatile gint*>(&_val), copy.get()); }
    00036
    00037     inline int get() const
    00038         { return g_atomic_int_get(static_cast<volatile gint*>(&_val)); }
    00039
    00040     inline void operator=(int val)
    00041         { g_atomic_int_set(static_cast<volatile gint*>(&_val), val); }
    00042
    00043     inline void operator+=(int val)
    00044         { g_atomic_int_add(static_cast<volatile gint*>(&_val), val); }
    00045
    00046     inline void operator-=(int val)
    00047         { g_atomic_int_add(static_cast<volatile gint*>(&_val), -val); }
    00048
    00049     inline bool operator==(int val) const
    00050         { return get() == val; }
    00051
    00052     inline int operator+(int val) const
    00053         { return get() + val; }
    00054
    00055     inline AtomicInt& operator++() // prefix
    00056         { g_atomic_int_inc(static_cast<volatile gint*>(&_val)); return *this; }
    00057
    00058     inline AtomicInt& operator--() // prefix
    00059         { g_atomic_int_add(static_cast<volatile gint*>(&_val), -1); return *this; }
    00060
    00064     inline bool compare_and_exchange(int old, int val)
    00065         { return g_atomic_int_compare_and_exchange(static_cast<volatile gint*>(&_val), old, val); }
    00066
    00070     inline int exchange_and_add(int val)
    00071         { return g_atomic_int_exchange_and_add(static_cast<volatile gint*>(&_val), val); }
    00072
    00076     inline bool decrement_and_test()
    00077         { return g_atomic_int_dec_and_test(static_cast<volatile gint*>(&_val)); }
    00078
    00079 private:
    00080     volatile mutable int _val;
    00081 };
    00082
    00083
    00084 } // namespace Raul
    00085
    00086 #endif // RAUL_ATOMIC_INT_HPP