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@@ -0,0 +1,59 @@
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+/*
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+Copyright (c) 2013 Daniele Bartolini, Michele Rossi
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+Copyright (c) 2012 Daniele Bartolini, Simone Boscaratto
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+
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+Permission is hereby granted, free of charge, to any person
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+obtaining a copy of this software and associated documentation
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+files (the "Software"), to deal in the Software without
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+restriction, including without limitation the rights to use,
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+copy, modify, merge, publish, distribute, sublicense, and/or sell
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+copies of the Software, and to permit persons to whom the
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+Software is furnished to do so, subject to the following
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+conditions:
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+
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+The above copyright notice and this permission notice shall be
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+included in all copies or substantial portions of the Software.
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+
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+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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+OTHER DEALINGS IN THE SOFTWARE.
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+*/
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+
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+#pragma once
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+
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+#ifndef __GNUG__
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+ #error "Compiler not supported"
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+#endif
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+
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+namespace crown
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+{
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+
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+struct AtomicInt
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+{
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+ AtomicInt(int val)
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+ {
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+ store(val);
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+ }
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+
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+ int load() const
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+ {
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+ __sync_fetch_and_add(&m_val, 0);
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+ return m_val;
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+ }
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+
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+ void store(int val)
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+ {
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+ __sync_lock_test_and_set(&m_val, val);
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+ }
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+
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+private:
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+
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+ mutable int m_val;
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+};
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+
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+} // namespace crown
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Daniele Bartolini