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#ifndef BOOST_THREAD_QUEUE_BASE_HPP
#define BOOST_THREAD_QUEUE_BASE_HPP
//////////////////////////////////////////////////////////////////////////////
//
// (C) Copyright Vicente J. Botet Escriba 2014. 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/libs/thread for documentation.
//
//////////////////////////////////////////////////////////////////////////////
#include <boost/thread/detail/config.hpp>
#include <boost/thread/detail/move.hpp>
#include <boost/thread/concurrent_queues/queue_op_status.hpp>
#include <boost/type_traits/conditional.hpp>
#include <boost/type_traits/is_copy_constructible.hpp>
#include <boost/config/abi_prefix.hpp>
namespace boost
{
namespace concurrent
{
namespace detail
{
template <typename ValueType>
class queue_base_copyable_only
{
public:
typedef ValueType value_type;
typedef std::size_t size_type;
// Constructors/Assignment/Destructors
virtual ~queue_base_copyable_only() {};
// Observers
virtual bool empty() const = 0;
virtual bool full() const = 0;
virtual size_type size() const = 0;
virtual bool closed() const = 0;
// Modifiers
virtual void close() = 0;
virtual void push_back(const value_type& x) = 0;
virtual void pull_front(value_type&) = 0;
virtual value_type pull_front() = 0;
virtual queue_op_status try_push_back(const value_type& x) = 0;
virtual queue_op_status try_pull_front(value_type&) = 0;
virtual queue_op_status nonblocking_push_back(const value_type& x) = 0;
virtual queue_op_status nonblocking_pull_front(value_type&) = 0;
virtual queue_op_status wait_push_back(const value_type& x) = 0;
virtual queue_op_status wait_pull_front(ValueType& elem) = 0;
};
template <typename ValueType>
class queue_base_movable_only
{
public:
typedef ValueType value_type;
typedef std::size_t size_type;
// Constructors/Assignment/Destructors
virtual ~queue_base_movable_only() {};
// Observers
virtual bool empty() const = 0;
virtual bool full() const = 0;
virtual size_type size() const = 0;
virtual bool closed() const = 0;
// Modifiers
virtual void close() = 0;
virtual void pull_front(value_type&) = 0;
// enable_if is_nothrow_movable<value_type>
virtual value_type pull_front() = 0;
virtual queue_op_status try_pull_front(value_type&) = 0;
virtual queue_op_status nonblocking_pull_front(value_type&) = 0;
virtual queue_op_status wait_pull_front(ValueType& elem) = 0;
virtual void push_back(BOOST_THREAD_RV_REF(value_type) x) = 0;
virtual queue_op_status try_push_back(BOOST_THREAD_RV_REF(value_type) x) = 0;
virtual queue_op_status nonblocking_push_back(BOOST_THREAD_RV_REF(value_type) x) = 0;
virtual queue_op_status wait_push_back(BOOST_THREAD_RV_REF(value_type) x) = 0;
};
template <typename ValueType>
class queue_base_copyable_and_movable
{
public:
typedef ValueType value_type;
typedef std::size_t size_type;
// Constructors/Assignment/Destructors
virtual ~queue_base_copyable_and_movable() {};
// Observers
virtual bool empty() const = 0;
virtual bool full() const = 0;
virtual size_type size() const = 0;
virtual bool closed() const = 0;
// Modifiers
virtual void close() = 0;
virtual void push_back(const value_type& x) = 0;
virtual void pull_front(value_type&) = 0;
// enable_if is_nothrow_copy_movable<value_type>
virtual value_type pull_front() = 0;
virtual queue_op_status try_push_back(const value_type& x) = 0;
virtual queue_op_status try_pull_front(value_type&) = 0;
virtual queue_op_status nonblocking_push_back(const value_type& x) = 0;
virtual queue_op_status nonblocking_pull_front(value_type&) = 0;
virtual queue_op_status wait_push_back(const value_type& x) = 0;
virtual queue_op_status wait_pull_front(ValueType& elem) = 0;
virtual void push_back(BOOST_THREAD_RV_REF(value_type) x) = 0;
virtual queue_op_status try_push_back(BOOST_THREAD_RV_REF(value_type) x) = 0;
virtual queue_op_status nonblocking_push_back(BOOST_THREAD_RV_REF(value_type) x) = 0;
virtual queue_op_status wait_push_back(BOOST_THREAD_RV_REF(value_type) x) = 0;
};
template <class T,
#if ! defined BOOST_NO_CXX11_RVALUE_REFERENCES
#if defined __GNUC__
#if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 5) || !defined(__GXX_EXPERIMENTAL_CXX0X__)
bool Copyable = is_copy_constructible<T>::value,
bool Movable = true
#else
bool Copyable = std::is_copy_constructible<T>::value && std::is_copy_assignable<T>::value,
bool Movable = std::is_move_constructible<T>::value && std::is_move_assignable<T>::value
#endif // __GNUC__
#elif defined _MSC_VER
#if _MSC_VER < 1700
bool Copyable = is_copy_constructible<T>::value,
bool Movable = true
#else
bool Copyable = std::is_copy_constructible<T>::value && std::is_copy_assignable<T>::value,
bool Movable = std::is_move_constructible<T>::value && std::is_move_assignable<T>::value
#endif // _MSC_VER
#else
bool Copyable = std::is_copy_constructible<T>::value && std::is_copy_assignable<T>::value,
bool Movable = std::is_move_constructible<T>::value && std::is_move_assignable<T>::value
#endif
#else
bool Copyable = is_copy_constructible<T>::value,
bool Movable = has_move_emulation_enabled<T>::value
#endif
>
struct queue_base;
template <class T>
struct queue_base<T, true, true> {
typedef queue_base_copyable_and_movable<T> type;
};
template <class T>
struct queue_base<T, true, false> {
typedef queue_base_copyable_only<T> type;
};
template <class T>
struct queue_base<T, false, true> {
typedef queue_base_movable_only<T> type;
};
}
template <typename ValueType>
class queue_base :
public detail::queue_base<ValueType>::type
{
public:
typedef ValueType value_type;
typedef std::size_t size_type;
// Constructors/Assignment/Destructors
virtual ~queue_base() {};
};
}
using concurrent::queue_base;
}
#include <boost/config/abi_suffix.hpp>
#endif
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