29 lines
860 B
C++
29 lines
860 B
C++
// A model of the Lockable concept from Boost.Thread which
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// does nothing. It can be passed as the Mutex template parameter
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// for a signal, if the user wishes to disable thread-safety
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// (presumably for performance reasons).
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// Copyright Frank Mori Hess 2008.
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// Distributed under the Boost Software License, Version
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// 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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// See http://www.boost.org/libs/signals2 for library home page.
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#ifndef BOOST_SIGNALS2_DUMMY_MUTEX_HPP
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#define BOOST_SIGNALS2_DUMMY_MUTEX_HPP
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namespace boost {
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namespace signals2 {
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class dummy_mutex
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{
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public:
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void lock() {}
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bool try_lock() {return true;}
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void unlock() {}
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};
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} // end namespace signals2
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} // end namespace boost
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#endif // BOOST_SIGNALS2_DUMMY_MUTEX_HPP
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