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// 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)
// (C) Copyright 2013 Vicente J. Botet Escriba
#ifndef BOOST_THREAD_COUNTER_HPP
#define BOOST_THREAD_COUNTER_HPP
#include <boost/thread/detail/config.hpp>
#include <boost/thread/detail/delete.hpp>
//#include <boost/thread/mutex.hpp>
//#include <boost/thread/lock_types.hpp>
#include <boost/thread/condition_variable.hpp>
#include <boost/chrono/duration.hpp>
#include <boost/chrono/time_point.hpp>
#include <boost/assert.hpp>
#include <boost/config/abi_prefix.hpp>
namespace boost
{
namespace detail {
struct counter
{
condition_variable cond_;
std::size_t value_;
counter(std::size_t value)
: value_(value)
{
}
counter& operator=(counter const& rhs)
{
value_ = rhs.value_;
return *this;
}
counter& operator=(std::size_t value)
{
value_ = value;
return *this;
}
operator std::size_t() const
{
return value_;
}
operator std::size_t&()
{
return value_;
}
void inc_and_notify_all()
{
++value_;
cond_.notify_all();
}
void dec_and_notify_all()
{
--value_;
cond_.notify_all();
}
void assign_and_notify_all(counter const& rhs)
{
value_ = rhs.value_;
cond_.notify_all();
}
void assign_and_notify_all(std::size_t value)
{
value_ = value;
cond_.notify_all();
}
};
struct counter_is_not_zero
{
counter_is_not_zero(counter const& count) : count_(count) {}
bool operator()() const { return count_ != 0; }
counter const& count_;
};
struct counter_is_zero
{
counter_is_zero(counter const& count) : count_(count) {}
bool operator()() const { return count_ == 0; }
counter const& count_;
};
struct is_zero
{
is_zero(std::size_t& count) : count_(count) {}
bool operator()() const { return count_ == 0; }
std::size_t& count_;
};
struct not_equal
{
not_equal(std::size_t& x, std::size_t& y) : x_(x), y_(y) {}
bool operator()() const { return x_ != y_; }
std::size_t& x_;
std::size_t& y_;
};
}
} // namespace boost
#include <boost/config/abi_suffix.hpp>
#endif
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