| // Copyright (C) 2000 Stephen Cleary |
| // |
| // Distributed under the Boost Software License, Version 1.0. (See |
| // accompanying file LICENSE_1_0.txt or copy at |
| // http://www.boost.org/LICENSE_1_0.txt) |
| // |
| // See http://www.boost.org for updates, documentation, and revision history. |
| |
| #ifndef BOOST_POOL_MUTEX_HPP |
| #define BOOST_POOL_MUTEX_HPP |
| |
| #include <boost/config.hpp> // for workarounds |
| #ifdef BOOST_HAS_THREADS |
| #include <boost/thread/mutex.hpp> |
| #endif |
| |
| namespace boost{ namespace details{ namespace pool{ |
| |
| class null_mutex |
| { |
| private: |
| null_mutex(const null_mutex &); |
| void operator=(const null_mutex &); |
| |
| public: |
| null_mutex() { } |
| |
| static void lock() { } |
| static void unlock() { } |
| }; |
| |
| #if !defined(BOOST_HAS_THREADS) || defined(BOOST_NO_MT) || defined(BOOST_POOL_NO_MT) |
| typedef null_mutex default_mutex; |
| #else |
| typedef boost::mutex default_mutex; |
| #endif |
| |
| } // namespace pool |
| } // namespace details |
| } // namespace boost |
| |
| #endif |