RAUL 0.7.0
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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_PTR_HPP 00019 #define RAUL_ATOMIC_PTR_HPP 00020 00021 #include <glib.h> 00022 00023 namespace Raul { 00024 00025 00026 template<typename T> 00027 class AtomicPtr { 00028 public: 00029 inline AtomicPtr() 00030 { g_atomic_pointer_set(static_cast<volatile gpointer*>(&_val), NULL); } 00031 00032 inline AtomicPtr(const AtomicPtr& copy) 00033 { g_atomic_pointer_set(static_cast<volatile gpointer*>(&_val), 00034 static_cast<gpointer>(copy.get())); } 00035 00036 inline T* get() const 00037 { return static_cast<T*>(g_atomic_pointer_get(static_cast<volatile gpointer*>(&_val))); } 00038 00039 inline void operator=(T* val) 00040 { g_atomic_pointer_set(&_val, static_cast<gpointer>(val)); } 00041 00043 inline bool compare_and_exchange(gpointer oldval, gpointer newval) 00044 { return g_atomic_pointer_compare_and_exchange(&_val, oldval, newval); } 00045 00046 private: 00047 mutable volatile gpointer _val; 00048 }; 00049 00050 00051 } // namespace Raul 00052 00053 #endif // RAUL_ATOMIC_PTR_HPP