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1 | // Copyright (C) 2001-2003 |
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2 | // William E. Kempf |
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3 | // |
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4 | // Permission to use, copy, modify, distribute and sell this software |
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5 | // and its documentation for any purpose is hereby granted without fee, |
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6 | // provided that the above copyright notice appear in all copies and |
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7 | // that both that copyright notice and this permission notice appear |
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8 | // in supporting documentation. William E. Kempf makes no representations |
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9 | // about the suitability of this software for any purpose. |
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10 | // It is provided "as is" without express or implied warranty. |
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11 | |
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12 | #ifndef BOOST_ONCE_WEK080101_HPP |
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13 | #define BOOST_ONCE_WEK080101_HPP |
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14 | |
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15 | #include <boost/thread/detail/config.hpp> |
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16 | |
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17 | #if defined(BOOST_HAS_PTHREADS) |
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18 | # include <pthread.h> |
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19 | #endif |
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20 | |
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21 | namespace boost { |
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22 | |
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23 | #if defined(BOOST_HAS_PTHREADS) |
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24 | |
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25 | typedef pthread_once_t once_flag; |
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26 | #define BOOST_ONCE_INIT PTHREAD_ONCE_INIT |
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27 | |
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28 | #elif (defined(BOOST_HAS_WINTHREADS) || defined(BOOST_HAS_MPTASKS)) |
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29 | |
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30 | typedef long once_flag; |
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31 | #define BOOST_ONCE_INIT 0 |
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32 | |
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33 | #endif |
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34 | |
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35 | void BOOST_THREAD_DECL call_once(void (*func)(), once_flag& flag); |
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36 | |
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37 | } // namespace boost |
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38 | |
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39 | // Change Log: |
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40 | // 1 Aug 01 WEKEMPF Initial version. |
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41 | |
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42 | #endif // BOOST_ONCE_WEK080101_HPP |
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