1 // Copyright (C) 2002-2003
2 // David Moore, William E. Kempf
3 // Copyright (C) 2007-8 Anthony Williams
4 // (C) Copyright 2013 Vicente J. Botet Escriba
6 // Distributed under the Boost Software License, Version 1.0. (See accompanying
7 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
9 #ifndef BOOST_BARRIER_JDM030602_HPP
10 #define BOOST_BARRIER_JDM030602_HPP
12 #include <boost/thread/detail/config.hpp>
13 #include <boost/thread/detail/delete.hpp>
15 #include <boost/throw_exception.hpp>
16 #include <boost/thread/mutex.hpp>
17 #include <boost/thread/lock_types.hpp>
18 #include <boost/thread/condition_variable.hpp>
21 #include <boost/thread/detail/nullary_function.hpp>
22 #include <boost/type_traits/is_same.hpp>
23 #include <boost/type_traits/is_void.hpp>
24 #include <boost/core/enable_if.hpp>
25 #include <boost/utility/result_of.hpp>
27 #include <boost/config/abi_prefix.hpp>
31 namespace thread_detail
33 typedef detail::nullary_function<void()> void_completion_function;
34 typedef detail::nullary_function<size_t()> size_completion_function;
36 struct default_barrier_reseter
39 default_barrier_reseter(unsigned int size) :
43 BOOST_THREAD_MOVABLE(default_barrier_reseter)
44 //BOOST_THREAD_COPYABLE_AND_MOVABLE(default_barrier_reseter)
46 default_barrier_reseter(default_barrier_reseter const& other) BOOST_NOEXCEPT :
50 default_barrier_reseter(BOOST_THREAD_RV_REF(default_barrier_reseter) other) BOOST_NOEXCEPT :
51 size_(BOOST_THREAD_RV(other).size_)
55 unsigned int operator()()
61 struct void_functor_barrier_reseter
64 void_completion_function fct_;
66 void_functor_barrier_reseter(unsigned int size, BOOST_THREAD_RV_REF(F) funct)
67 : size_(size), fct_(boost::move(funct))
70 void_functor_barrier_reseter(unsigned int size, F& funct)
71 : size_(size), fct_(funct)
74 BOOST_THREAD_MOVABLE(void_functor_barrier_reseter)
75 //BOOST_THREAD_COPYABLE_AND_MOVABLE(void_functor_barrier_reseter)
77 void_functor_barrier_reseter(void_functor_barrier_reseter const& other) BOOST_NOEXCEPT :
78 size_(other.size_), fct_(other.fct_)
81 void_functor_barrier_reseter(BOOST_THREAD_RV_REF(void_functor_barrier_reseter) other) BOOST_NOEXCEPT :
82 size_(BOOST_THREAD_RV(other).size_), fct_(BOOST_THREAD_RV(other).fct_)
83 //size_(BOOST_THREAD_RV(other).size_), fct_(boost::move(BOOST_THREAD_RV(other).fct_))
87 unsigned int operator()()
93 struct void_fct_ptr_barrier_reseter
97 void_fct_ptr_barrier_reseter(unsigned int size, void(*funct)()) :
98 size_(size), fct_(funct)
101 BOOST_THREAD_MOVABLE(void_fct_ptr_barrier_reseter)
102 //BOOST_THREAD_COPYABLE_AND_MOVABLE(void_fct_ptr_barrier_reseter)
104 void_fct_ptr_barrier_reseter(void_fct_ptr_barrier_reseter const& other) BOOST_NOEXCEPT :
105 size_(other.size_), fct_(other.fct_)
108 void_fct_ptr_barrier_reseter(BOOST_THREAD_RV_REF(void_fct_ptr_barrier_reseter) other) BOOST_NOEXCEPT :
109 size_(BOOST_THREAD_RV(other).size_), fct_(BOOST_THREAD_RV(other).fct_)
112 unsigned int operator()()
119 //BOOST_THREAD_DCL_MOVABLE(thread_detail::default_barrier_reseter)
120 //BOOST_THREAD_DCL_MOVABLE(thread_detail::void_functor_barrier_reseter)
121 //BOOST_THREAD_DCL_MOVABLE(thread_detail::void_fct_ptr_barrier_reseter)
125 static inline unsigned int check_counter(unsigned int count)
127 if (count == 0) boost::throw_exception(
128 thread_exception(system::errc::invalid_argument, "barrier constructor: count cannot be zero."));
136 BOOST_THREAD_NO_COPYABLE( barrier)
138 explicit barrier(unsigned int count) :
139 m_count(check_counter(count)), m_generation(0), fct_(BOOST_THREAD_MAKE_RV_REF(thread_detail::default_barrier_reseter(count)))
143 template <typename F>
146 BOOST_THREAD_RV_REF(F) funct,
148 typename is_void<typename result_of<F()>::type>::type, dummy*
151 : m_count(check_counter(count)),
153 fct_(BOOST_THREAD_MAKE_RV_REF(thread_detail::void_functor_barrier_reseter(count,
158 template <typename F>
163 typename is_void<typename result_of<F()>::type>::type, dummy*
166 : m_count(check_counter(count)),
168 fct_(BOOST_THREAD_MAKE_RV_REF(thread_detail::void_functor_barrier_reseter(count,
174 template <typename F>
177 BOOST_THREAD_RV_REF(F) funct,
179 typename is_same<typename result_of<F()>::type, unsigned int>::type, dummy*
182 : m_count(check_counter(count)),
184 fct_(boost::move(funct))
187 template <typename F>
192 typename is_same<typename result_of<F()>::type, unsigned int>::type, dummy*
195 : m_count(check_counter(count)),
201 barrier(unsigned int count, void(*funct)()) :
202 m_count(check_counter(count)), m_generation(0),
204 ? BOOST_THREAD_MAKE_RV_REF(thread_detail::size_completion_function(BOOST_THREAD_MAKE_RV_REF(thread_detail::void_fct_ptr_barrier_reseter(count, funct))))
205 : BOOST_THREAD_MAKE_RV_REF(thread_detail::size_completion_function(BOOST_THREAD_MAKE_RV_REF(thread_detail::default_barrier_reseter(count))))
209 barrier(unsigned int count, unsigned int(*funct)()) :
210 m_count(check_counter(count)), m_generation(0),
212 ? BOOST_THREAD_MAKE_RV_REF(thread_detail::size_completion_function(funct))
213 : BOOST_THREAD_MAKE_RV_REF(thread_detail::size_completion_function(BOOST_THREAD_MAKE_RV_REF(thread_detail::default_barrier_reseter(count))))
220 boost::unique_lock < boost::mutex > lock(m_mutex);
221 unsigned int gen = m_generation;
226 m_count = static_cast<unsigned int>(fct_());
227 BOOST_ASSERT(m_count != 0);
233 while (gen == m_generation)
238 void count_down_and_wait()
245 condition_variable m_cond;
246 unsigned int m_count;
247 unsigned int m_generation;
248 thread_detail::size_completion_function fct_;
253 #include <boost/config/abi_suffix.hpp>