Updated to r8541

This commit is contained in:
Jordan Sherer
2018-03-05 14:49:51 -05:00
parent a4fa5b9988
commit a32fe6a4dc
200 changed files with 20394 additions and 4957 deletions
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// Circular buffer library header file.
// Copyright (c) 2003-2008 Jan Gaspar
// Use, modification, and distribution is subject to 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 www.boost.org/libs/circular_buffer for documentation.
#if !defined(BOOST_CIRCULAR_BUFFER_HPP)
#define BOOST_CIRCULAR_BUFFER_HPP
#if defined(_MSC_VER)
#pragma once
#endif
#include <boost/circular_buffer_fwd.hpp>
#include <boost/detail/workaround.hpp>
#include <boost/static_assert.hpp>
// BOOST_CB_ENABLE_DEBUG: Debug support control.
#if !defined(BOOST_CB_ENABLE_DEBUG)
#define BOOST_CB_ENABLE_DEBUG 0
#endif
// BOOST_CB_ASSERT: Runtime assertion.
#if BOOST_CB_ENABLE_DEBUG
#include <boost/assert.hpp>
#define BOOST_CB_ASSERT(Expr) BOOST_ASSERT(Expr)
#else
#define BOOST_CB_ASSERT(Expr) ((void)0)
#endif
// BOOST_CB_IS_CONVERTIBLE: Check if Iterator::value_type is convertible to Type.
#if BOOST_WORKAROUND(__BORLANDC__, <= 0x0550) || BOOST_WORKAROUND(__MWERKS__, <= 0x2407)
#define BOOST_CB_IS_CONVERTIBLE(Iterator, Type) ((void)0)
#else
#include <boost/detail/iterator.hpp>
#include <boost/type_traits/is_convertible.hpp>
#define BOOST_CB_IS_CONVERTIBLE(Iterator, Type) \
BOOST_STATIC_ASSERT((is_convertible<typename detail::iterator_traits<Iterator>::value_type, Type>::value))
#endif
// BOOST_CB_ASSERT_TEMPLATED_ITERATOR_CONSTRUCTORS:
// Check if the STL provides templated iterator constructors for its containers.
#if defined(BOOST_NO_TEMPLATED_ITERATOR_CONSTRUCTORS)
#define BOOST_CB_ASSERT_TEMPLATED_ITERATOR_CONSTRUCTORS BOOST_STATIC_ASSERT(false);
#else
#define BOOST_CB_ASSERT_TEMPLATED_ITERATOR_CONSTRUCTORS ((void)0);
#endif
#include <boost/circular_buffer/debug.hpp>
#include <boost/circular_buffer/details.hpp>
#include <boost/circular_buffer/base.hpp>
#include <boost/circular_buffer/space_optimized.hpp>
#undef BOOST_CB_ASSERT_TEMPLATED_ITERATOR_CONSTRUCTORS
#undef BOOST_CB_IS_CONVERTIBLE
#undef BOOST_CB_ASSERT
#endif // #if !defined(BOOST_CIRCULAR_BUFFER_HPP)
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// Debug support for the circular buffer library.
// Copyright (c) 2003-2008 Jan Gaspar
// Use, modification, and distribution is subject to 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)
#if !defined(BOOST_CIRCULAR_BUFFER_DEBUG_HPP)
#define BOOST_CIRCULAR_BUFFER_DEBUG_HPP
#if defined(_MSC_VER)
#pragma once
#endif
#if BOOST_CB_ENABLE_DEBUG
#include <cstring>
#if defined(BOOST_NO_STDC_NAMESPACE)
namespace std {
using ::memset;
}
#endif
#endif // BOOST_CB_ENABLE_DEBUG
namespace boost {
namespace cb_details {
#if BOOST_CB_ENABLE_DEBUG
// The value the uninitialized memory is filled with.
const int UNINITIALIZED = 0xcc;
template <class T>
inline void do_fill_uninitialized_memory(T* data, std::size_t size_in_bytes) BOOST_NOEXCEPT {
std::memset(static_cast<void*>(data), UNINITIALIZED, size_in_bytes);
}
template <class T>
inline void do_fill_uninitialized_memory(T& /*data*/, std::size_t /*size_in_bytes*/) BOOST_NOEXCEPT {
// Do nothing
}
class debug_iterator_registry;
/*!
\class debug_iterator_base
\brief Registers/unregisters iterators into the registry of valid iterators.
This class is intended to be a base class of an iterator.
*/
class debug_iterator_base {
private:
// Members
//! Iterator registry.
mutable const debug_iterator_registry* m_registry;
//! Next iterator in the iterator chain.
mutable const debug_iterator_base* m_next;
public:
// Construction/destruction
//! Default constructor.
debug_iterator_base();
//! Constructor taking the iterator registry as a parameter.
debug_iterator_base(const debug_iterator_registry* registry);
//! Copy constructor.
debug_iterator_base(const debug_iterator_base& rhs);
//! Destructor.
~debug_iterator_base();
// Methods
//! Assign operator.
debug_iterator_base& operator = (const debug_iterator_base& rhs);
//! Is the iterator valid?
bool is_valid(const debug_iterator_registry* registry) const;
//! Invalidate the iterator.
/*!
\note The method is const in order to invalidate const iterators, too.
*/
void invalidate() const;
//! Return the next iterator in the iterator chain.
const debug_iterator_base* next() const;
//! Set the next iterator in the iterator chain.
/*!
\note The method is const in order to set a next iterator to a const iterator, too.
*/
void set_next(const debug_iterator_base* it) const;
private:
// Helpers
//! Register self as a valid iterator.
void register_self();
//! Unregister self from valid iterators.
void unregister_self();
};
/*!
\class debug_iterator_registry
\brief Registry of valid iterators.
This class is intended to be a base class of a container.
*/
class debug_iterator_registry {
//! Pointer to the chain of valid iterators.
mutable const debug_iterator_base* m_iterators;
public:
// Methods
//! Default constructor.
debug_iterator_registry() : m_iterators(0) {}
//! Register an iterator into the list of valid iterators.
/*!
\note The method is const in order to register iterators into const containers, too.
*/
void register_iterator(const debug_iterator_base* it) const {
it->set_next(m_iterators);
m_iterators = it;
}
//! Unregister an iterator from the list of valid iterators.
/*!
\note The method is const in order to unregister iterators from const containers, too.
*/
void unregister_iterator(const debug_iterator_base* it) const {
const debug_iterator_base* previous = 0;
for (const debug_iterator_base* p = m_iterators; p != it; previous = p, p = p->next()) {}
remove(it, previous);
}
//! Invalidate every iterator pointing to the same element as the iterator passed as a parameter.
template <class Iterator>
void invalidate_iterators(const Iterator& it) {
const debug_iterator_base* previous = 0;
for (const debug_iterator_base* p = m_iterators; p != 0; p = p->next()) {
if (((Iterator*)p)->m_it == it.m_it) {
p->invalidate();
remove(p, previous);
continue;
}
previous = p;
}
}
//! Invalidate all iterators except an iterator poining to the same element as the iterator passed as a parameter.
template <class Iterator>
void invalidate_iterators_except(const Iterator& it) {
const debug_iterator_base* previous = 0;
for (const debug_iterator_base* p = m_iterators; p != 0; p = p->next()) {
if (((Iterator*)p)->m_it != it.m_it) {
p->invalidate();
remove(p, previous);
continue;
}
previous = p;
}
}
//! Invalidate all iterators.
void invalidate_all_iterators() {
for (const debug_iterator_base* p = m_iterators; p != 0; p = p->next())
p->invalidate();
m_iterators = 0;
}
private:
// Helpers
//! Remove the current iterator from the iterator chain.
void remove(const debug_iterator_base* current,
const debug_iterator_base* previous) const {
if (previous == 0)
m_iterators = m_iterators->next();
else
previous->set_next(current->next());
}
};
// Implementation of the debug_iterator_base methods.
inline debug_iterator_base::debug_iterator_base() : m_registry(0), m_next(0) {}
inline debug_iterator_base::debug_iterator_base(const debug_iterator_registry* registry)
: m_registry(registry), m_next(0) {
register_self();
}
inline debug_iterator_base::debug_iterator_base(const debug_iterator_base& rhs)
: m_registry(rhs.m_registry), m_next(0) {
register_self();
}
inline debug_iterator_base::~debug_iterator_base() { unregister_self(); }
inline debug_iterator_base& debug_iterator_base::operator = (const debug_iterator_base& rhs) {
if (m_registry == rhs.m_registry)
return *this;
unregister_self();
m_registry = rhs.m_registry;
register_self();
return *this;
}
inline bool debug_iterator_base::is_valid(const debug_iterator_registry* registry) const {
return m_registry == registry;
}
inline void debug_iterator_base::invalidate() const { m_registry = 0; }
inline const debug_iterator_base* debug_iterator_base::next() const { return m_next; }
inline void debug_iterator_base::set_next(const debug_iterator_base* it) const { m_next = it; }
inline void debug_iterator_base::register_self() {
if (m_registry != 0)
m_registry->register_iterator(this);
}
inline void debug_iterator_base::unregister_self() {
if (m_registry != 0)
m_registry->unregister_iterator(this);
}
#endif // #if BOOST_CB_ENABLE_DEBUG
} // namespace cb_details
} // namespace boost
#endif // #if !defined(BOOST_CIRCULAR_BUFFER_DEBUG_HPP)
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// Helper classes and functions for the circular buffer.
// Copyright (c) 2003-2008 Jan Gaspar
// Copyright (c) 2014 Glen Fernandes // C++11 allocator model support.
// Use, modification, and distribution is subject to 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)
#if !defined(BOOST_CIRCULAR_BUFFER_DETAILS_HPP)
#define BOOST_CIRCULAR_BUFFER_DETAILS_HPP
#if defined(_MSC_VER)
#pragma once
#endif
#include <boost/throw_exception.hpp>
#include <boost/container/allocator_traits.hpp>
#include <boost/move/move.hpp>
#include <boost/type_traits/is_nothrow_move_constructible.hpp>
#include <boost/utility/addressof.hpp>
#include <boost/detail/no_exceptions_support.hpp>
#include <iterator>
// Silence MS /W4 warnings like C4913:
// "user defined binary operator ',' exists but no overload could convert all operands, default built-in binary operator ',' used"
// This might happen when previously including some boost headers that overload the coma operator.
#if defined(_MSC_VER)
# pragma warning(push)
# pragma warning(disable:4913)
#endif
namespace boost {
namespace cb_details {
template <class Traits> struct nonconst_traits;
template<class ForwardIterator, class Diff, class T, class Alloc>
void uninitialized_fill_n_with_alloc(
ForwardIterator first, Diff n, const T& item, Alloc& alloc);
template<class InputIterator, class ForwardIterator, class Alloc>
ForwardIterator uninitialized_copy(InputIterator first, InputIterator last, ForwardIterator dest, Alloc& a);
template<class InputIterator, class ForwardIterator, class Alloc>
ForwardIterator uninitialized_move_if_noexcept(InputIterator first, InputIterator last, ForwardIterator dest, Alloc& a);
/*!
\struct const_traits
\brief Defines the data types for a const iterator.
*/
template <class Traits>
struct const_traits {
// Basic types
typedef typename Traits::value_type value_type;
typedef typename Traits::const_pointer pointer;
typedef typename Traits::const_reference reference;
typedef typename Traits::size_type size_type;
typedef typename Traits::difference_type difference_type;
// Non-const traits
typedef nonconst_traits<Traits> nonconst_self;
};
/*!
\struct nonconst_traits
\brief Defines the data types for a non-const iterator.
*/
template <class Traits>
struct nonconst_traits {
// Basic types
typedef typename Traits::value_type value_type;
typedef typename Traits::pointer pointer;
typedef typename Traits::reference reference;
typedef typename Traits::size_type size_type;
typedef typename Traits::difference_type difference_type;
// Non-const traits
typedef nonconst_traits<Traits> nonconst_self;
};
/*!
\struct iterator_wrapper
\brief Helper iterator dereference wrapper.
*/
template <class Iterator>
struct iterator_wrapper {
mutable Iterator m_it;
explicit iterator_wrapper(Iterator it) : m_it(it) {}
Iterator operator () () const { return m_it++; }
private:
iterator_wrapper<Iterator>& operator = (const iterator_wrapper<Iterator>&); // do not generate
};
/*!
\struct item_wrapper
\brief Helper item dereference wrapper.
*/
template <class Pointer, class Value>
struct item_wrapper {
Value m_item;
explicit item_wrapper(Value item) : m_item(item) {}
Pointer operator () () const { return &m_item; }
private:
item_wrapper<Pointer, Value>& operator = (const item_wrapper<Pointer, Value>&); // do not generate
};
/*!
\struct assign_n
\brief Helper functor for assigning n items.
*/
template <class Value, class Alloc>
struct assign_n {
typedef typename boost::container::allocator_traits<Alloc>::size_type size_type;
size_type m_n;
Value m_item;
Alloc& m_alloc;
assign_n(size_type n, Value item, Alloc& alloc) : m_n(n), m_item(item), m_alloc(alloc) {}
template <class Pointer>
void operator () (Pointer p) const {
uninitialized_fill_n_with_alloc(p, m_n, m_item, m_alloc);
}
private:
assign_n<Value, Alloc>& operator = (const assign_n<Value, Alloc>&); // do not generate
};
/*!
\struct assign_range
\brief Helper functor for assigning range of items.
*/
template <class Iterator, class Alloc>
struct assign_range {
Iterator m_first;
Iterator m_last;
Alloc& m_alloc;
assign_range(const Iterator& first, const Iterator& last, Alloc& alloc)
: m_first(first), m_last(last), m_alloc(alloc) {}
template <class Pointer>
void operator () (Pointer p) const {
boost::cb_details::uninitialized_copy(m_first, m_last, p, m_alloc);
}
};
template <class Iterator, class Alloc>
inline assign_range<Iterator, Alloc> make_assign_range(const Iterator& first, const Iterator& last, Alloc& a) {
return assign_range<Iterator, Alloc>(first, last, a);
}
/*!
\class capacity_control
\brief Capacity controller of the space optimized circular buffer.
*/
template <class Size>
class capacity_control {
//! The capacity of the space-optimized circular buffer.
Size m_capacity;
//! The lowest guaranteed or minimum capacity of the adapted space-optimized circular buffer.
Size m_min_capacity;
public:
//! Constructor.
capacity_control(Size buffer_capacity, Size min_buffer_capacity = 0)
: m_capacity(buffer_capacity), m_min_capacity(min_buffer_capacity)
{ // Check for capacity lower than min_capacity.
BOOST_CB_ASSERT(buffer_capacity >= min_buffer_capacity);
}
// Default copy constructor.
// Default assign operator.
//! Get the capacity of the space optimized circular buffer.
Size capacity() const { return m_capacity; }
//! Get the minimal capacity of the space optimized circular buffer.
Size min_capacity() const { return m_min_capacity; }
//! Size operator - returns the capacity of the space optimized circular buffer.
operator Size() const { return m_capacity; }
};
/*!
\struct iterator
\brief Random access iterator for the circular buffer.
\param Buff The type of the underlying circular buffer.
\param Traits Basic iterator types.
\note This iterator is not circular. It was designed
for iterating from begin() to end() of the circular buffer.
*/
template <class Buff, class Traits>
struct iterator :
public std::iterator<
std::random_access_iterator_tag,
typename Traits::value_type,
typename Traits::difference_type,
typename Traits::pointer,
typename Traits::reference>
#if BOOST_CB_ENABLE_DEBUG
, public debug_iterator_base
#endif // #if BOOST_CB_ENABLE_DEBUG
{
// Helper types
//! Base iterator.
typedef std::iterator<
std::random_access_iterator_tag,
typename Traits::value_type,
typename Traits::difference_type,
typename Traits::pointer,
typename Traits::reference> base_iterator;
//! Non-const iterator.
typedef iterator<Buff, typename Traits::nonconst_self> nonconst_self;
// Basic types
//! The type of the elements stored in the circular buffer.
typedef typename base_iterator::value_type value_type;
//! Pointer to the element.
typedef typename base_iterator::pointer pointer;
//! Reference to the element.
typedef typename base_iterator::reference reference;
//! Size type.
typedef typename Traits::size_type size_type;
//! Difference type.
typedef typename base_iterator::difference_type difference_type;
// Member variables
//! The circular buffer where the iterator points to.
const Buff* m_buff;
//! An internal iterator.
pointer m_it;
// Construction & assignment
// Default copy constructor.
//! Default constructor.
iterator() : m_buff(0), m_it(0) {}
#if BOOST_CB_ENABLE_DEBUG
//! Copy constructor (used for converting from a non-const to a const iterator).
iterator(const nonconst_self& it) : debug_iterator_base(it), m_buff(it.m_buff), m_it(it.m_it) {}
//! Internal constructor.
/*!
\note This constructor is not intended to be used directly by the user.
*/
iterator(const Buff* cb, const pointer p) : debug_iterator_base(cb), m_buff(cb), m_it(p) {}
#else
iterator(const nonconst_self& it) : m_buff(it.m_buff), m_it(it.m_it) {}
iterator(const Buff* cb, const pointer p) : m_buff(cb), m_it(p) {}
#endif // #if BOOST_CB_ENABLE_DEBUG
//! Assign operator.
iterator& operator = (const iterator& it) {
if (this == &it)
return *this;
#if BOOST_CB_ENABLE_DEBUG
debug_iterator_base::operator =(it);
#endif // #if BOOST_CB_ENABLE_DEBUG
m_buff = it.m_buff;
m_it = it.m_it;
return *this;
}
// Random access iterator methods
//! Dereferencing operator.
reference operator * () const {
BOOST_CB_ASSERT(is_valid(m_buff)); // check for uninitialized or invalidated iterator
BOOST_CB_ASSERT(m_it != 0); // check for iterator pointing to end()
return *m_it;
}
//! Dereferencing operator.
pointer operator -> () const { return &(operator*()); }
//! Difference operator.
template <class Traits0>
difference_type operator - (const iterator<Buff, Traits0>& it) const {
BOOST_CB_ASSERT(is_valid(m_buff)); // check for uninitialized or invalidated iterator
BOOST_CB_ASSERT(it.is_valid(m_buff)); // check for uninitialized or invalidated iterator
return linearize_pointer(*this) - linearize_pointer(it);
}
//! Increment operator (prefix).
iterator& operator ++ () {
BOOST_CB_ASSERT(is_valid(m_buff)); // check for uninitialized or invalidated iterator
BOOST_CB_ASSERT(m_it != 0); // check for iterator pointing to end()
m_buff->increment(m_it);
if (m_it == m_buff->m_last)
m_it = 0;
return *this;
}
//! Increment operator (postfix).
iterator operator ++ (int) {
iterator<Buff, Traits> tmp = *this;
++*this;
return tmp;
}
//! Decrement operator (prefix).
iterator& operator -- () {
BOOST_CB_ASSERT(is_valid(m_buff)); // check for uninitialized or invalidated iterator
BOOST_CB_ASSERT(m_it != m_buff->m_first); // check for iterator pointing to begin()
if (m_it == 0)
m_it = m_buff->m_last;
m_buff->decrement(m_it);
return *this;
}
//! Decrement operator (postfix).
iterator operator -- (int) {
iterator<Buff, Traits> tmp = *this;
--*this;
return tmp;
}
//! Iterator addition.
iterator& operator += (difference_type n) {
BOOST_CB_ASSERT(is_valid(m_buff)); // check for uninitialized or invalidated iterator
if (n > 0) {
BOOST_CB_ASSERT(m_buff->end() - *this >= n); // check for too large n
m_it = m_buff->add(m_it, n);
if (m_it == m_buff->m_last)
m_it = 0;
} else if (n < 0) {
*this -= -n;
}
return *this;
}
//! Iterator addition.
iterator operator + (difference_type n) const { return iterator<Buff, Traits>(*this) += n; }
//! Iterator subtraction.
iterator& operator -= (difference_type n) {
BOOST_CB_ASSERT(is_valid(m_buff)); // check for uninitialized or invalidated iterator
if (n > 0) {
BOOST_CB_ASSERT(*this - m_buff->begin() >= n); // check for too large n
m_it = m_buff->sub(m_it == 0 ? m_buff->m_last : m_it, n);
} else if (n < 0) {
*this += -n;
}
return *this;
}
//! Iterator subtraction.
iterator operator - (difference_type n) const { return iterator<Buff, Traits>(*this) -= n; }
//! Element access operator.
reference operator [] (difference_type n) const { return *(*this + n); }
// Equality & comparison
//! Equality.
template <class Traits0>
bool operator == (const iterator<Buff, Traits0>& it) const {
BOOST_CB_ASSERT(is_valid(m_buff)); // check for uninitialized or invalidated iterator
BOOST_CB_ASSERT(it.is_valid(m_buff)); // check for uninitialized or invalidated iterator
return m_it == it.m_it;
}
//! Inequality.
template <class Traits0>
bool operator != (const iterator<Buff, Traits0>& it) const {
BOOST_CB_ASSERT(is_valid(m_buff)); // check for uninitialized or invalidated iterator
BOOST_CB_ASSERT(it.is_valid(m_buff)); // check for uninitialized or invalidated iterator
return m_it != it.m_it;
}
//! Less.
template <class Traits0>
bool operator < (const iterator<Buff, Traits0>& it) const {
BOOST_CB_ASSERT(is_valid(m_buff)); // check for uninitialized or invalidated iterator
BOOST_CB_ASSERT(it.is_valid(m_buff)); // check for uninitialized or invalidated iterator
return linearize_pointer(*this) < linearize_pointer(it);
}
//! Greater.
template <class Traits0>
bool operator > (const iterator<Buff, Traits0>& it) const { return it < *this; }
//! Less or equal.
template <class Traits0>
bool operator <= (const iterator<Buff, Traits0>& it) const { return !(it < *this); }
//! Greater or equal.
template <class Traits0>
bool operator >= (const iterator<Buff, Traits0>& it) const { return !(*this < it); }
// Helpers
//! Get a pointer which would point to the same element as the iterator in case the circular buffer is linearized.
template <class Traits0>
typename Traits0::pointer linearize_pointer(const iterator<Buff, Traits0>& it) const {
return it.m_it == 0 ? m_buff->m_buff + m_buff->size() :
(it.m_it < m_buff->m_first ? it.m_it + (m_buff->m_end - m_buff->m_first)
: m_buff->m_buff + (it.m_it - m_buff->m_first));
}
};
//! Iterator addition.
template <class Buff, class Traits>
inline iterator<Buff, Traits>
operator + (typename Traits::difference_type n, const iterator<Buff, Traits>& it) {
return it + n;
}
/*!
\fn ForwardIterator uninitialized_copy(InputIterator first, InputIterator last, ForwardIterator dest)
\brief Equivalent of <code>std::uninitialized_copy</code> but with explicit specification of value type.
*/
template<class InputIterator, class ForwardIterator, class Alloc>
inline ForwardIterator uninitialized_copy(InputIterator first, InputIterator last, ForwardIterator dest, Alloc& a) {
ForwardIterator next = dest;
BOOST_TRY {
for (; first != last; ++first, ++dest)
boost::container::allocator_traits<Alloc>::construct(a, boost::addressof(*dest), *first);
} BOOST_CATCH(...) {
for (; next != dest; ++next)
boost::container::allocator_traits<Alloc>::destroy(a, boost::addressof(*next));
BOOST_RETHROW
}
BOOST_CATCH_END
return dest;
}
template<class InputIterator, class ForwardIterator, class Alloc>
ForwardIterator uninitialized_move_if_noexcept_impl(InputIterator first, InputIterator last, ForwardIterator dest, Alloc& a,
true_type) {
for (; first != last; ++first, ++dest)
boost::container::allocator_traits<Alloc>::construct(a, boost::addressof(*dest), boost::move(*first));
return dest;
}
template<class InputIterator, class ForwardIterator, class Alloc>
ForwardIterator uninitialized_move_if_noexcept_impl(InputIterator first, InputIterator last, ForwardIterator dest, Alloc& a,
false_type) {
return uninitialized_copy(first, last, dest, a);
}
/*!
\fn ForwardIterator uninitialized_move_if_noexcept(InputIterator first, InputIterator last, ForwardIterator dest)
\brief Equivalent of <code>std::uninitialized_copy</code> but with explicit specification of value type and moves elements if they have noexcept move constructors.
*/
template<class InputIterator, class ForwardIterator, class Alloc>
ForwardIterator uninitialized_move_if_noexcept(InputIterator first, InputIterator last, ForwardIterator dest, Alloc& a) {
typedef typename boost::is_nothrow_move_constructible<typename boost::container::allocator_traits<Alloc>::value_type>::type tag_t;
return uninitialized_move_if_noexcept_impl(first, last, dest, a, tag_t());
}
/*!
\fn void uninitialized_fill_n_with_alloc(ForwardIterator first, Diff n, const T& item, Alloc& alloc)
\brief Equivalent of <code>std::uninitialized_fill_n</code> with allocator.
*/
template<class ForwardIterator, class Diff, class T, class Alloc>
inline void uninitialized_fill_n_with_alloc(ForwardIterator first, Diff n, const T& item, Alloc& alloc) {
ForwardIterator next = first;
BOOST_TRY {
for (; n > 0; ++first, --n)
boost::container::allocator_traits<Alloc>::construct(alloc, boost::addressof(*first), item);
} BOOST_CATCH(...) {
for (; next != first; ++next)
boost::container::allocator_traits<Alloc>::destroy(alloc, boost::addressof(*next));
BOOST_RETHROW
}
BOOST_CATCH_END
}
} // namespace cb_details
} // namespace boost
#if defined(_MSC_VER)
# pragma warning(pop)
#endif
#endif // #if !defined(BOOST_CIRCULAR_BUFFER_DETAILS_HPP)
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// Forward declaration of the circular buffer and its adaptor.
// Copyright (c) 2003-2008 Jan Gaspar
// Use, modification, and distribution is subject to 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 www.boost.org/libs/circular_buffer for documentation.
#if !defined(BOOST_CIRCULAR_BUFFER_FWD_HPP)
#define BOOST_CIRCULAR_BUFFER_FWD_HPP
#if defined(_MSC_VER)
#pragma once
#endif
#include <boost/config.hpp>
#if !defined(BOOST_NO_STD_ALLOCATOR)
#include <memory>
#else
#include <vector>
#endif
namespace boost {
#if !defined(BOOST_NO_STD_ALLOCATOR)
#define BOOST_CB_DEFAULT_ALLOCATOR(T) std::allocator<T>
#else
#define BOOST_CB_DEFAULT_ALLOCATOR(T) BOOST_DEDUCED_TYPENAME std::vector<T>::allocator_type
#endif
template <class T, class Alloc = BOOST_CB_DEFAULT_ALLOCATOR(T)>
class circular_buffer;
template <class T, class Alloc = BOOST_CB_DEFAULT_ALLOCATOR(T)>
class circular_buffer_space_optimized;
#undef BOOST_CB_DEFAULT_ALLOCATOR
} // namespace boost
#endif // #if !defined(BOOST_CIRCULAR_BUFFER_FWD_HPP)
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// boost/detail/lightweight_main.hpp -------------------------------------------------//
// Copyright Beman Dawes 2010
// Distributed under the Boost Software License, Version 1.0.
// See http://www.boost.org/LICENSE_1_0.txt
#include <iostream>
#include <exception>
//--------------------------------------------------------------------------------------//
// //
// exception reporting main() that calls cpp_main() //
// //
//--------------------------------------------------------------------------------------//
int cpp_main(int argc, char* argv[]);
int main(int argc, char* argv[])
{
try
{
return cpp_main(argc, argv);
}
catch (const std::exception& ex)
{
std::cout
<< "\nERROR ERROR ERROR ERROR ERROR ERROR ERROR ERROR ERROR ERROR ERROR\n"
<< "\n****************************** std::exception *****************************\n"
<< ex.what()
<< "\n***************************************************************************\n"
<< std::endl;
}
return 1;
}
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// boost progress.hpp header file ------------------------------------------//
// Copyright Beman Dawes 1994-99. 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/timer for documentation.
// Revision History
// 1 Dec 01 Add leading progress display strings (suggested by Toon Knapen)
// 20 May 01 Introduce several static_casts<> to eliminate warning messages
// (Fixed by Beman, reported by Herve Bronnimann)
// 12 Jan 01 Change to inline implementation to allow use without library
// builds. See docs for more rationale. (Beman Dawes)
// 22 Jul 99 Name changed to .hpp
// 16 Jul 99 Second beta
// 6 Jul 99 Initial boost version
#ifndef BOOST_PROGRESS_HPP
#define BOOST_PROGRESS_HPP
#include <boost/timer.hpp>
#include <boost/noncopyable.hpp>
#include <boost/cstdint.hpp> // for uintmax_t
#include <iostream> // for ostream, cout, etc
#include <string> // for string
namespace boost {
// progress_timer ----------------------------------------------------------//
// A progress_timer behaves like a timer except that the destructor displays
// an elapsed time message at an appropriate place in an appropriate form.
class progress_timer : public timer, private noncopyable
{
public:
explicit progress_timer( std::ostream & os = std::cout )
// os is hint; implementation may ignore, particularly in embedded systems
: timer(), noncopyable(), m_os(os) {}
~progress_timer()
{
// A) Throwing an exception from a destructor is a Bad Thing.
// B) The progress_timer destructor does output which may throw.
// C) A progress_timer is usually not critical to the application.
// Therefore, wrap the I/O in a try block, catch and ignore all exceptions.
try
{
// use istream instead of ios_base to workaround GNU problem (Greg Chicares)
std::istream::fmtflags old_flags = m_os.setf( std::istream::fixed,
std::istream::floatfield );
std::streamsize old_prec = m_os.precision( 2 );
m_os << elapsed() << " s\n" // "s" is System International d'Unites std
<< std::endl;
m_os.flags( old_flags );
m_os.precision( old_prec );
}
catch (...) {} // eat any exceptions
} // ~progress_timer
private:
std::ostream & m_os;
};
// progress_display --------------------------------------------------------//
// progress_display displays an appropriate indication of
// progress at an appropriate place in an appropriate form.
// NOTE: (Jan 12, 2001) Tried to change unsigned long to boost::uintmax_t, but
// found some compilers couldn't handle the required conversion to double.
// Reverted to unsigned long until the compilers catch up.
class progress_display : private noncopyable
{
public:
explicit progress_display( unsigned long expected_count_,
std::ostream & os = std::cout,
const std::string & s1 = "\n", //leading strings
const std::string & s2 = "",
const std::string & s3 = "" )
// os is hint; implementation may ignore, particularly in embedded systems
: noncopyable(), m_os(os), m_s1(s1), m_s2(s2), m_s3(s3) { restart(expected_count_); }
void restart( unsigned long expected_count_ )
// Effects: display appropriate scale
// Postconditions: count()==0, expected_count()==expected_count_
{
_count = _next_tic_count = _tic = 0;
_expected_count = expected_count_;
m_os << m_s1 << "0% 10 20 30 40 50 60 70 80 90 100%\n"
<< m_s2 << "|----|----|----|----|----|----|----|----|----|----|"
<< std::endl // endl implies flush, which ensures display
<< m_s3;
if ( !_expected_count ) _expected_count = 1; // prevent divide by zero
} // restart
unsigned long operator+=( unsigned long increment )
// Effects: Display appropriate progress tic if needed.
// Postconditions: count()== original count() + increment
// Returns: count().
{
if ( (_count += increment) >= _next_tic_count ) { display_tic(); }
return _count;
}
unsigned long operator++() { return operator+=( 1 ); }
unsigned long count() const { return _count; }
unsigned long expected_count() const { return _expected_count; }
private:
std::ostream & m_os; // may not be present in all imps
const std::string m_s1; // string is more general, safer than
const std::string m_s2; // const char *, and efficiency or size are
const std::string m_s3; // not issues
unsigned long _count, _expected_count, _next_tic_count;
unsigned int _tic;
void display_tic()
{
// use of floating point ensures that both large and small counts
// work correctly. static_cast<>() is also used several places
// to suppress spurious compiler warnings.
unsigned int tics_needed = static_cast<unsigned int>((static_cast<double>(_count)
/ static_cast<double>(_expected_count)) * 50.0);
do { m_os << '*' << std::flush; } while ( ++_tic < tics_needed );
_next_tic_count =
static_cast<unsigned long>((_tic/50.0) * static_cast<double>(_expected_count));
if ( _count == _expected_count ) {
if ( _tic < 51 ) m_os << '*';
m_os << std::endl;
}
} // display_tic
};
} // namespace boost
#endif // BOOST_PROGRESS_HPP
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#ifndef BOOST_THREAD_CONDITION_HPP
#define BOOST_THREAD_CONDITION_HPP
// (C) Copyright 2007 Anthony Williams
//
// 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)
#include <boost/thread/detail/config.hpp>
#if defined BOOST_THREAD_PROVIDES_CONDITION
#include <boost/thread/condition_variable.hpp>
namespace boost
{
typedef condition_variable_any condition;
}
#endif
#endif
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#ifndef BOOST_THREAD_DETAIL_THREAD_GROUP_HPP
#define BOOST_THREAD_DETAIL_THREAD_GROUP_HPP
// 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 2007-9 Anthony Williams
#include <list>
#include <boost/thread/csbl/memory/unique_ptr.hpp>
#include <boost/thread/shared_mutex.hpp>
#include <boost/thread/mutex.hpp>
#include <boost/thread/lock_guard.hpp>
#include <boost/config/abi_prefix.hpp>
#ifdef BOOST_MSVC
#pragma warning(push)
#pragma warning(disable:4251)
#endif
namespace boost
{
class thread_group
{
private:
thread_group(thread_group const&);
thread_group& operator=(thread_group const&);
public:
thread_group() {}
~thread_group()
{
for(std::list<thread*>::iterator it=threads.begin(),end=threads.end();
it!=end;
++it)
{
delete *it;
}
}
bool is_this_thread_in()
{
thread::id id = this_thread::get_id();
boost::shared_lock<shared_mutex> guard(m);
for(std::list<thread*>::iterator it=threads.begin(),end=threads.end();
it!=end;
++it)
{
if ((*it)->get_id() == id)
return true;
}
return false;
}
bool is_thread_in(thread* thrd)
{
if(thrd)
{
thread::id id = thrd->get_id();
boost::shared_lock<shared_mutex> guard(m);
for(std::list<thread*>::iterator it=threads.begin(),end=threads.end();
it!=end;
++it)
{
if ((*it)->get_id() == id)
return true;
}
return false;
}
else
{
return false;
}
}
template<typename F>
thread* create_thread(F threadfunc)
{
boost::lock_guard<shared_mutex> guard(m);
boost::csbl::unique_ptr<thread> new_thread(new thread(threadfunc));
threads.push_back(new_thread.get());
return new_thread.release();
}
void add_thread(thread* thrd)
{
if(thrd)
{
BOOST_THREAD_ASSERT_PRECONDITION( ! is_thread_in(thrd) ,
thread_resource_error(static_cast<int>(system::errc::resource_deadlock_would_occur), "boost::thread_group: trying to add a duplicated thread")
);
boost::lock_guard<shared_mutex> guard(m);
threads.push_back(thrd);
}
}
void remove_thread(thread* thrd)
{
boost::lock_guard<shared_mutex> guard(m);
std::list<thread*>::iterator const it=std::find(threads.begin(),threads.end(),thrd);
if(it!=threads.end())
{
threads.erase(it);
}
}
void join_all()
{
BOOST_THREAD_ASSERT_PRECONDITION( ! is_this_thread_in() ,
thread_resource_error(static_cast<int>(system::errc::resource_deadlock_would_occur), "boost::thread_group: trying joining itself")
);
boost::shared_lock<shared_mutex> guard(m);
for(std::list<thread*>::iterator it=threads.begin(),end=threads.end();
it!=end;
++it)
{
if ((*it)->joinable())
(*it)->join();
}
}
#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
void interrupt_all()
{
boost::shared_lock<shared_mutex> guard(m);
for(std::list<thread*>::iterator it=threads.begin(),end=threads.end();
it!=end;
++it)
{
(*it)->interrupt();
}
}
#endif
size_t size() const
{
boost::shared_lock<shared_mutex> guard(m);
return threads.size();
}
private:
std::list<thread*> threads;
mutable shared_mutex m;
};
}
#ifdef BOOST_MSVC
#pragma warning(pop)
#endif
#include <boost/config/abi_suffix.hpp>
#endif
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#ifndef BOOST_THREAD_PTHREAD_SHARED_MUTEX_HPP
#define BOOST_THREAD_PTHREAD_SHARED_MUTEX_HPP
// (C) Copyright 2006-8 Anthony Williams
// (C) Copyright 2012 Vicente J. Botet Escriba
//
// 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)
#include <boost/assert.hpp>
#include <boost/static_assert.hpp>
#include <boost/thread/mutex.hpp>
#include <boost/thread/condition_variable.hpp>
#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
#include <boost/thread/detail/thread_interruption.hpp>
#endif
#ifdef BOOST_THREAD_USES_CHRONO
#include <boost/chrono/system_clocks.hpp>
#include <boost/chrono/ceil.hpp>
#endif
#include <boost/thread/detail/delete.hpp>
#include <boost/assert.hpp>
#include <boost/config/abi_prefix.hpp>
namespace boost
{
class shared_mutex
{
private:
class state_data
{
public:
state_data () :
shared_count(0),
exclusive(false),
upgrade(false),
exclusive_waiting_blocked(false)
{}
void assert_free() const
{
BOOST_ASSERT( ! exclusive );
BOOST_ASSERT( ! upgrade );
BOOST_ASSERT( shared_count==0 );
}
void assert_locked() const
{
BOOST_ASSERT( exclusive );
BOOST_ASSERT( shared_count==0 );
BOOST_ASSERT( ! upgrade );
}
void assert_lock_shared () const
{
BOOST_ASSERT( ! exclusive );
BOOST_ASSERT( shared_count>0 );
//BOOST_ASSERT( (! upgrade) || (shared_count>1));
// if upgraded there are at least 2 threads sharing the mutex,
// except when unlock_upgrade_and_lock has decreased the number of readers but has not taken yet exclusive ownership.
}
void assert_lock_upgraded () const
{
BOOST_ASSERT( ! exclusive );
BOOST_ASSERT( upgrade );
BOOST_ASSERT( shared_count>0 );
}
void assert_lock_not_upgraded () const
{
BOOST_ASSERT( ! upgrade );
}
bool can_lock () const
{
return ! (shared_count || exclusive);
}
void exclusive_blocked (bool blocked)
{
exclusive_waiting_blocked = blocked;
}
void lock ()
{
exclusive = true;
}
void unlock ()
{
exclusive = false;
exclusive_waiting_blocked = false;
}
bool can_lock_shared () const
{
return ! (exclusive || exclusive_waiting_blocked);
}
bool more_shared () const
{
return shared_count > 0 ;
}
unsigned get_shared_count () const
{
return shared_count ;
}
unsigned lock_shared ()
{
return ++shared_count;
}
void unlock_shared ()
{
--shared_count;
}
bool unlock_shared_downgrades()
{
if (upgrade) {
upgrade=false;
exclusive=true;
return true;
} else {
exclusive_waiting_blocked=false;
return false;
}
}
void lock_upgrade ()
{
++shared_count;
upgrade=true;
}
bool can_lock_upgrade () const
{
return ! (exclusive || exclusive_waiting_blocked || upgrade);
}
void unlock_upgrade ()
{
upgrade=false;
--shared_count;
}
//private:
unsigned shared_count;
bool exclusive;
bool upgrade;
bool exclusive_waiting_blocked;
};
state_data state;
boost::mutex state_change;
boost::condition_variable shared_cond;
boost::condition_variable exclusive_cond;
boost::condition_variable upgrade_cond;
void release_waiters()
{
exclusive_cond.notify_one();
shared_cond.notify_all();
}
public:
BOOST_THREAD_NO_COPYABLE(shared_mutex)
shared_mutex()
{
}
~shared_mutex()
{
}
void lock_shared()
{
#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
boost::this_thread::disable_interruption do_not_disturb;
#endif
boost::unique_lock<boost::mutex> lk(state_change);
while(!state.can_lock_shared())
{
shared_cond.wait(lk);
}
state.lock_shared();
}
bool try_lock_shared()
{
boost::unique_lock<boost::mutex> lk(state_change);
if(!state.can_lock_shared())
{
return false;
}
state.lock_shared();
return true;
}
#if defined BOOST_THREAD_USES_DATETIME
bool timed_lock_shared(system_time const& timeout)
{
#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
boost::this_thread::disable_interruption do_not_disturb;
#endif
boost::unique_lock<boost::mutex> lk(state_change);
while(!state.can_lock_shared())
{
if(!shared_cond.timed_wait(lk,timeout))
{
return false;
}
}
state.lock_shared();
return true;
}
template<typename TimeDuration>
bool timed_lock_shared(TimeDuration const & relative_time)
{
return timed_lock_shared(get_system_time()+relative_time);
}
#endif
#ifdef BOOST_THREAD_USES_CHRONO
template <class Rep, class Period>
bool try_lock_shared_for(const chrono::duration<Rep, Period>& rel_time)
{
return try_lock_shared_until(chrono::steady_clock::now() + rel_time);
}
template <class Clock, class Duration>
bool try_lock_shared_until(const chrono::time_point<Clock, Duration>& abs_time)
{
#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
boost::this_thread::disable_interruption do_not_disturb;
#endif
boost::unique_lock<boost::mutex> lk(state_change);
while(!state.can_lock_shared())
//while(state.exclusive || state.exclusive_waiting_blocked)
{
if(cv_status::timeout==shared_cond.wait_until(lk,abs_time))
{
return false;
}
}
state.lock_shared();
return true;
}
#endif
void unlock_shared()
{
boost::unique_lock<boost::mutex> lk(state_change);
state.assert_lock_shared();
state.unlock_shared();
if (! state.more_shared())
{
if (state.upgrade)
{
// As there is a thread doing a unlock_upgrade_and_lock that is waiting for ! state.more_shared()
// avoid other threads to lock, lock_upgrade or lock_shared, so only this thread is notified.
state.upgrade=false;
state.exclusive=true;
//lk.unlock();
upgrade_cond.notify_one();
}
else
{
state.exclusive_waiting_blocked=false;
//lk.unlock();
}
release_waiters();
}
}
void lock()
{
#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
boost::this_thread::disable_interruption do_not_disturb;
#endif
boost::unique_lock<boost::mutex> lk(state_change);
while (state.shared_count || state.exclusive)
{
state.exclusive_waiting_blocked=true;
exclusive_cond.wait(lk);
}
state.exclusive=true;
}
#if defined BOOST_THREAD_USES_DATETIME
bool timed_lock(system_time const& timeout)
{
#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
boost::this_thread::disable_interruption do_not_disturb;
#endif
boost::unique_lock<boost::mutex> lk(state_change);
while(state.shared_count || state.exclusive)
{
state.exclusive_waiting_blocked=true;
if(!exclusive_cond.timed_wait(lk,timeout))
{
if(state.shared_count || state.exclusive)
{
state.exclusive_waiting_blocked=false;
release_waiters();
return false;
}
break;
}
}
state.exclusive=true;
return true;
}
template<typename TimeDuration>
bool timed_lock(TimeDuration const & relative_time)
{
return timed_lock(get_system_time()+relative_time);
}
#endif
#ifdef BOOST_THREAD_USES_CHRONO
template <class Rep, class Period>
bool try_lock_for(const chrono::duration<Rep, Period>& rel_time)
{
return try_lock_until(chrono::steady_clock::now() + rel_time);
}
template <class Clock, class Duration>
bool try_lock_until(const chrono::time_point<Clock, Duration>& abs_time)
{
#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
boost::this_thread::disable_interruption do_not_disturb;
#endif
boost::unique_lock<boost::mutex> lk(state_change);
while(state.shared_count || state.exclusive)
{
state.exclusive_waiting_blocked=true;
if(cv_status::timeout == exclusive_cond.wait_until(lk,abs_time))
{
if(state.shared_count || state.exclusive)
{
state.exclusive_waiting_blocked=false;
release_waiters();
return false;
}
break;
}
}
state.exclusive=true;
return true;
}
#endif
bool try_lock()
{
boost::unique_lock<boost::mutex> lk(state_change);
if(state.shared_count || state.exclusive)
{
return false;
}
else
{
state.exclusive=true;
return true;
}
}
void unlock()
{
boost::unique_lock<boost::mutex> lk(state_change);
state.assert_locked();
state.exclusive=false;
state.exclusive_waiting_blocked=false;
state.assert_free();
release_waiters();
}
void lock_upgrade()
{
#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
boost::this_thread::disable_interruption do_not_disturb;
#endif
boost::unique_lock<boost::mutex> lk(state_change);
while(state.exclusive || state.exclusive_waiting_blocked || state.upgrade)
{
shared_cond.wait(lk);
}
state.lock_shared();
state.upgrade=true;
}
#if defined BOOST_THREAD_USES_DATETIME
bool timed_lock_upgrade(system_time const& timeout)
{
#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
boost::this_thread::disable_interruption do_not_disturb;
#endif
boost::unique_lock<boost::mutex> lk(state_change);
while(state.exclusive || state.exclusive_waiting_blocked || state.upgrade)
{
if(!shared_cond.timed_wait(lk,timeout))
{
if(state.exclusive || state.exclusive_waiting_blocked || state.upgrade)
{
return false;
}
break;
}
}
state.lock_shared();
state.upgrade=true;
return true;
}
template<typename TimeDuration>
bool timed_lock_upgrade(TimeDuration const & relative_time)
{
return timed_lock_upgrade(get_system_time()+relative_time);
}
#endif
#ifdef BOOST_THREAD_USES_CHRONO
template <class Rep, class Period>
bool try_lock_upgrade_for(const chrono::duration<Rep, Period>& rel_time)
{
return try_lock_upgrade_until(chrono::steady_clock::now() + rel_time);
}
template <class Clock, class Duration>
bool try_lock_upgrade_until(const chrono::time_point<Clock, Duration>& abs_time)
{
#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
boost::this_thread::disable_interruption do_not_disturb;
#endif
boost::unique_lock<boost::mutex> lk(state_change);
while(state.exclusive || state.exclusive_waiting_blocked || state.upgrade)
{
if(cv_status::timeout == shared_cond.wait_until(lk,abs_time))
{
if(state.exclusive || state.exclusive_waiting_blocked || state.upgrade)
{
return false;
}
break;
}
}
state.lock_shared();
state.upgrade=true;
return true;
}
#endif
bool try_lock_upgrade()
{
boost::unique_lock<boost::mutex> lk(state_change);
if(state.exclusive || state.exclusive_waiting_blocked || state.upgrade)
{
return false;
}
else
{
state.lock_shared();
state.upgrade=true;
state.assert_lock_upgraded();
return true;
}
}
void unlock_upgrade()
{
boost::unique_lock<boost::mutex> lk(state_change);
//state.upgrade=false;
state.unlock_upgrade();
if(! state.more_shared() )
{
state.exclusive_waiting_blocked=false;
release_waiters();
} else {
shared_cond.notify_all();
}
}
// Upgrade <-> Exclusive
void unlock_upgrade_and_lock()
{
#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
boost::this_thread::disable_interruption do_not_disturb;
#endif
boost::unique_lock<boost::mutex> lk(state_change);
state.assert_lock_upgraded();
state.unlock_shared();
while (state.more_shared())
{
upgrade_cond.wait(lk);
}
state.upgrade=false;
state.exclusive=true;
state.assert_locked();
}
void unlock_and_lock_upgrade()
{
boost::unique_lock<boost::mutex> lk(state_change);
state.assert_locked();
state.exclusive=false;
state.upgrade=true;
state.lock_shared();
state.exclusive_waiting_blocked=false;
state.assert_lock_upgraded();
release_waiters();
}
bool try_unlock_upgrade_and_lock()
{
boost::unique_lock<boost::mutex> lk(state_change);
state.assert_lock_upgraded();
if( !state.exclusive
&& !state.exclusive_waiting_blocked
&& state.upgrade
&& state.shared_count==1)
{
state.shared_count=0;
state.exclusive=true;
state.upgrade=false;
state.assert_locked();
return true;
}
return false;
}
#ifdef BOOST_THREAD_USES_CHRONO
template <class Rep, class Period>
bool
try_unlock_upgrade_and_lock_for(
const chrono::duration<Rep, Period>& rel_time)
{
return try_unlock_upgrade_and_lock_until(
chrono::steady_clock::now() + rel_time);
}
template <class Clock, class Duration>
bool
try_unlock_upgrade_and_lock_until(
const chrono::time_point<Clock, Duration>& abs_time)
{
#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
boost::this_thread::disable_interruption do_not_disturb;
#endif
boost::unique_lock<boost::mutex> lk(state_change);
state.assert_lock_upgraded();
if (state.shared_count != 1)
{
for (;;)
{
cv_status status = shared_cond.wait_until(lk,abs_time);
if (state.shared_count == 1)
break;
if(status == cv_status::timeout)
return false;
}
}
state.upgrade=false;
state.exclusive=true;
state.exclusive_waiting_blocked=false;
state.shared_count=0;
return true;
}
#endif
// Shared <-> Exclusive
void unlock_and_lock_shared()
{
boost::unique_lock<boost::mutex> lk(state_change);
state.assert_locked();
state.exclusive=false;
state.lock_shared();
state.exclusive_waiting_blocked=false;
release_waiters();
}
#ifdef BOOST_THREAD_PROVIDES_SHARED_MUTEX_UPWARDS_CONVERSIONS
bool try_unlock_shared_and_lock()
{
boost::unique_lock<boost::mutex> lk(state_change);
state.assert_lock_shared();
if( !state.exclusive
&& !state.exclusive_waiting_blocked
&& !state.upgrade
&& state.shared_count==1)
{
state.shared_count=0;
state.exclusive=true;
return true;
}
return false;
}
#ifdef BOOST_THREAD_USES_CHRONO
template <class Rep, class Period>
bool
try_unlock_shared_and_lock_for(
const chrono::duration<Rep, Period>& rel_time)
{
return try_unlock_shared_and_lock_until(
chrono::steady_clock::now() + rel_time);
}
template <class Clock, class Duration>
bool
try_unlock_shared_and_lock_until(
const chrono::time_point<Clock, Duration>& abs_time)
{
#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
boost::this_thread::disable_interruption do_not_disturb;
#endif
boost::unique_lock<boost::mutex> lk(state_change);
state.assert_lock_shared();
if (state.shared_count != 1)
{
for (;;)
{
cv_status status = shared_cond.wait_until(lk,abs_time);
if (state.shared_count == 1)
break;
if(status == cv_status::timeout)
return false;
}
}
state.upgrade=false;
state.exclusive=true;
state.exclusive_waiting_blocked=false;
state.shared_count=0;
return true;
}
#endif
#endif
// Shared <-> Upgrade
void unlock_upgrade_and_lock_shared()
{
boost::unique_lock<boost::mutex> lk(state_change);
state.assert_lock_upgraded();
state.upgrade=false;
state.exclusive_waiting_blocked=false;
release_waiters();
}
#ifdef BOOST_THREAD_PROVIDES_SHARED_MUTEX_UPWARDS_CONVERSIONS
bool try_unlock_shared_and_lock_upgrade()
{
boost::unique_lock<boost::mutex> lk(state_change);
state.assert_lock_shared();
if( !state.exclusive
&& !state.exclusive_waiting_blocked
&& !state.upgrade
)
{
state.upgrade=true;
return true;
}
return false;
}
#ifdef BOOST_THREAD_USES_CHRONO
template <class Rep, class Period>
bool
try_unlock_shared_and_lock_upgrade_for(
const chrono::duration<Rep, Period>& rel_time)
{
return try_unlock_shared_and_lock_upgrade_until(
chrono::steady_clock::now() + rel_time);
}
template <class Clock, class Duration>
bool
try_unlock_shared_and_lock_upgrade_until(
const chrono::time_point<Clock, Duration>& abs_time)
{
#if defined BOOST_THREAD_PROVIDES_INTERRUPTIONS
boost::this_thread::disable_interruption do_not_disturb;
#endif
boost::unique_lock<boost::mutex> lk(state_change);
state.assert_lock_shared();
if( state.exclusive
|| state.exclusive_waiting_blocked
|| state.upgrade
)
{
for (;;)
{
cv_status status = exclusive_cond.wait_until(lk,abs_time);
if( ! state.exclusive
&& ! state.exclusive_waiting_blocked
&& ! state.upgrade
)
break;
if(status == cv_status::timeout)
return false;
}
}
state.upgrade=true;
return true;
}
#endif
#endif
};
typedef shared_mutex upgrade_mutex;
}
#include <boost/config/abi_suffix.hpp>
#endif
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#ifndef BOOST_THREAD_SHARED_MUTEX_HPP
#define BOOST_THREAD_SHARED_MUTEX_HPP
// shared_mutex.hpp
//
// (C) Copyright 2007 Anthony Williams
// (C) Copyright 2011-2012 Vicente J. Botet Escriba
//
// 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)
#include <boost/thread/detail/config.hpp>
#if defined(BOOST_THREAD_PLATFORM_WIN32)
#if defined(BOOST_THREAD_PROVIDES_GENERIC_SHARED_MUTEX_ON_WIN)
#include <boost/thread/pthread/shared_mutex.hpp>
#else
#include <boost/thread/win32/shared_mutex.hpp>
#endif
#elif defined(BOOST_THREAD_PLATFORM_PTHREAD)
//#include <boost/thread/v2/shared_mutex.hpp>
#include <boost/thread/pthread/shared_mutex.hpp>
#else
#error "Boost threads unavailable on this platform"
#endif
#include <boost/thread/lockable_traits.hpp>
namespace boost
{
typedef shared_mutex shared_timed_mutex;
namespace sync
{
#ifdef BOOST_THREAD_NO_AUTO_DETECT_MUTEX_TYPES
template<>
struct is_basic_lockable<shared_mutex>
{
BOOST_STATIC_CONSTANT(bool, value = true);
};
template<>
struct is_lockable<shared_mutex>
{
BOOST_STATIC_CONSTANT(bool, value = true);
};
#endif
}
}
#endif
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#ifndef BOOST_THREAD_THREAD_HPP
#define BOOST_THREAD_THREAD_HPP
// thread.hpp
//
// (C) Copyright 2007-8 Anthony Williams
//
// 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)
#include <boost/thread/thread_only.hpp>
#include <boost/thread/detail/thread_group.hpp>
#endif
+903
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#ifndef BOOST_THREAD_WIN32_SHARED_MUTEX_HPP
#define BOOST_THREAD_WIN32_SHARED_MUTEX_HPP
// (C) Copyright 2006-8 Anthony Williams
// (C) Copyright 2011-2012 Vicente J. Botet Escriba
//
// 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)
#include <boost/assert.hpp>
#include <boost/detail/interlocked.hpp>
#include <boost/thread/win32/thread_primitives.hpp>
#include <boost/static_assert.hpp>
#include <limits.h>
#include <boost/thread/thread_time.hpp>
#ifdef BOOST_THREAD_USES_CHRONO
#include <boost/chrono/system_clocks.hpp>
#include <boost/chrono/ceil.hpp>
#endif
#include <boost/thread/detail/delete.hpp>
#include <boost/config/abi_prefix.hpp>
namespace boost
{
class shared_mutex
{
private:
struct state_data
{
unsigned shared_count:11,
shared_waiting:11,
exclusive:1,
upgrade:1,
exclusive_waiting:7,
exclusive_waiting_blocked:1;
friend bool operator==(state_data const& lhs,state_data const& rhs)
{
return *reinterpret_cast<unsigned const*>(&lhs)==*reinterpret_cast<unsigned const*>(&rhs);
}
};
template<typename T>
T interlocked_compare_exchange(T* target,T new_value,T comparand)
{
BOOST_STATIC_ASSERT(sizeof(T)==sizeof(long));
long const res=BOOST_INTERLOCKED_COMPARE_EXCHANGE(reinterpret_cast<long*>(target),
*reinterpret_cast<long*>(&new_value),
*reinterpret_cast<long*>(&comparand));
return *reinterpret_cast<T const*>(&res);
}
enum
{
unlock_sem = 0,
exclusive_sem = 1
};
state_data state;
detail::win32::handle semaphores[2];
detail::win32::handle upgrade_sem;
void release_waiters(state_data old_state)
{
if(old_state.exclusive_waiting)
{
BOOST_VERIFY(detail::win32::ReleaseSemaphore(semaphores[exclusive_sem],1,0)!=0);
}
if(old_state.shared_waiting || old_state.exclusive_waiting)
{
BOOST_VERIFY(detail::win32::ReleaseSemaphore(semaphores[unlock_sem],old_state.shared_waiting + (old_state.exclusive_waiting?1:0),0)!=0);
}
}
void release_shared_waiters(state_data old_state)
{
if(old_state.shared_waiting || old_state.exclusive_waiting)
{
BOOST_VERIFY(detail::win32::ReleaseSemaphore(semaphores[unlock_sem],old_state.shared_waiting + (old_state.exclusive_waiting?1:0),0)!=0);
}
}
public:
BOOST_THREAD_NO_COPYABLE(shared_mutex)
shared_mutex()
{
semaphores[unlock_sem]=detail::win32::create_anonymous_semaphore(0,LONG_MAX);
semaphores[exclusive_sem]=detail::win32::create_anonymous_semaphore_nothrow(0,LONG_MAX);
if (!semaphores[exclusive_sem])
{
detail::win32::release_semaphore(semaphores[unlock_sem],LONG_MAX);
boost::throw_exception(thread_resource_error());
}
upgrade_sem=detail::win32::create_anonymous_semaphore_nothrow(0,LONG_MAX);
if (!upgrade_sem)
{
detail::win32::release_semaphore(semaphores[unlock_sem],LONG_MAX);
detail::win32::release_semaphore(semaphores[exclusive_sem],LONG_MAX);
boost::throw_exception(thread_resource_error());
}
state_data state_={0,0,0,0,0,0};
state=state_;
}
~shared_mutex()
{
detail::win32::CloseHandle(upgrade_sem);
detail::win32::CloseHandle(semaphores[unlock_sem]);
detail::win32::CloseHandle(semaphores[exclusive_sem]);
}
bool try_lock_shared()
{
state_data old_state=state;
for(;;)
{
state_data new_state=old_state;
if(!new_state.exclusive && !new_state.exclusive_waiting_blocked)
{
++new_state.shared_count;
if(!new_state.shared_count)
{
return false;
}
}
state_data const current_state=interlocked_compare_exchange(&state,new_state,old_state);
if(current_state==old_state)
{
break;
}
old_state=current_state;
}
return !(old_state.exclusive| old_state.exclusive_waiting_blocked);
}
void lock_shared()
{
#if defined BOOST_THREAD_USES_DATETIME
BOOST_VERIFY(timed_lock_shared(::boost::detail::get_system_time_sentinel()));
#else
BOOST_VERIFY(try_lock_shared_until(chrono::steady_clock::now()));
#endif
}
#if defined BOOST_THREAD_USES_DATETIME
template<typename TimeDuration>
bool timed_lock_shared(TimeDuration const & relative_time)
{
return timed_lock_shared(get_system_time()+relative_time);
}
bool timed_lock_shared(boost::system_time const& wait_until)
{
for(;;)
{
state_data old_state=state;
for(;;)
{
state_data new_state=old_state;
if(new_state.exclusive || new_state.exclusive_waiting_blocked)
{
++new_state.shared_waiting;
if(!new_state.shared_waiting)
{
boost::throw_exception(boost::lock_error());
}
}
else
{
++new_state.shared_count;
if(!new_state.shared_count)
{
boost::throw_exception(boost::lock_error());
}
}
state_data const current_state=interlocked_compare_exchange(&state,new_state,old_state);
if(current_state==old_state)
{
break;
}
old_state=current_state;
}
if(!(old_state.exclusive| old_state.exclusive_waiting_blocked))
{
return true;
}
unsigned long const res=detail::win32::WaitForSingleObjectEx(semaphores[unlock_sem],::boost::detail::get_milliseconds_until(wait_until), 0);
if(res==detail::win32::timeout)
{
for(;;)
{
state_data new_state=old_state;
if(new_state.exclusive || new_state.exclusive_waiting_blocked)
{
if(new_state.shared_waiting)
{
--new_state.shared_waiting;
}
}
else
{
++new_state.shared_count;
if(!new_state.shared_count)
{
return false;
}
}
state_data const current_state=interlocked_compare_exchange(&state,new_state,old_state);
if(current_state==old_state)
{
break;
}
old_state=current_state;
}
if(!(old_state.exclusive| old_state.exclusive_waiting_blocked))
{
return true;
}
return false;
}
BOOST_ASSERT(res==0);
}
}
#endif
#ifdef BOOST_THREAD_USES_CHRONO
template <class Rep, class Period>
bool try_lock_shared_for(const chrono::duration<Rep, Period>& rel_time)
{
return try_lock_shared_until(chrono::steady_clock::now() + rel_time);
}
template <class Clock, class Duration>
bool try_lock_shared_until(const chrono::time_point<Clock, Duration>& t)
{
using namespace chrono;
system_clock::time_point s_now = system_clock::now();
typename Clock::time_point c_now = Clock::now();
return try_lock_shared_until(s_now + ceil<system_clock::duration>(t - c_now));
}
template <class Duration>
bool try_lock_shared_until(const chrono::time_point<chrono::system_clock, Duration>& t)
{
using namespace chrono;
typedef time_point<chrono::system_clock, chrono::system_clock::duration> sys_tmpt;
return try_lock_shared_until(sys_tmpt(chrono::ceil<chrono::system_clock::duration>(t.time_since_epoch())));
}
bool try_lock_shared_until(const chrono::time_point<chrono::system_clock, chrono::system_clock::duration>& tp)
{
for(;;)
{
state_data old_state=state;
for(;;)
{
state_data new_state=old_state;
if(new_state.exclusive || new_state.exclusive_waiting_blocked)
{
++new_state.shared_waiting;
if(!new_state.shared_waiting)
{
boost::throw_exception(boost::lock_error());
}
}
else
{
++new_state.shared_count;
if(!new_state.shared_count)
{
boost::throw_exception(boost::lock_error());
}
}
state_data const current_state=interlocked_compare_exchange(&state,new_state,old_state);
if(current_state==old_state)
{
break;
}
old_state=current_state;
}
if(!(old_state.exclusive| old_state.exclusive_waiting_blocked))
{
return true;
}
chrono::system_clock::time_point n = chrono::system_clock::now();
unsigned long res;
if (tp>n) {
chrono::milliseconds rel_time= chrono::ceil<chrono::milliseconds>(tp-n);
res=detail::win32::WaitForSingleObjectEx(semaphores[unlock_sem],
static_cast<unsigned long>(rel_time.count()), 0);
} else {
res=detail::win32::timeout;
}
if(res==detail::win32::timeout)
{
for(;;)
{
state_data new_state=old_state;
if(new_state.exclusive || new_state.exclusive_waiting_blocked)
{
if(new_state.shared_waiting)
{
--new_state.shared_waiting;
}
}
else
{
++new_state.shared_count;
if(!new_state.shared_count)
{
return false;
}
}
state_data const current_state=interlocked_compare_exchange(&state,new_state,old_state);
if(current_state==old_state)
{
break;
}
old_state=current_state;
}
if(!(old_state.exclusive| old_state.exclusive_waiting_blocked))
{
return true;
}
return false;
}
BOOST_ASSERT(res==0);
}
}
#endif
void unlock_shared()
{
state_data old_state=state;
for(;;)
{
state_data new_state=old_state;
bool const last_reader=!--new_state.shared_count;
if(last_reader)
{
if(new_state.upgrade)
{
new_state.upgrade=false;
new_state.exclusive=true;
}
else
{
if(new_state.exclusive_waiting)
{
--new_state.exclusive_waiting;
new_state.exclusive_waiting_blocked=false;
}
new_state.shared_waiting=0;
}
}
state_data const current_state=interlocked_compare_exchange(&state,new_state,old_state);
if(current_state==old_state)
{
if(last_reader)
{
if(old_state.upgrade)
{
BOOST_VERIFY(detail::win32::ReleaseSemaphore(upgrade_sem,1,0)!=0);
}
else
{
release_waiters(old_state);
}
}
break;
}
old_state=current_state;
}
}
void lock()
{
#if defined BOOST_THREAD_USES_DATETIME
BOOST_VERIFY(timed_lock(::boost::detail::get_system_time_sentinel()));
#else
BOOST_VERIFY(try_lock_until(chrono::steady_clock::now()));
#endif
}
#if defined BOOST_THREAD_USES_DATETIME
template<typename TimeDuration>
bool timed_lock(TimeDuration const & relative_time)
{
return timed_lock(get_system_time()+relative_time);
}
#endif
bool try_lock()
{
state_data old_state=state;
for(;;)
{
state_data new_state=old_state;
if(new_state.shared_count || new_state.exclusive)
{
return false;
}
else
{
new_state.exclusive=true;
}
state_data const current_state=interlocked_compare_exchange(&state,new_state,old_state);
if(current_state==old_state)
{
break;
}
old_state=current_state;
}
return true;
}
#if defined BOOST_THREAD_USES_DATETIME
bool timed_lock(boost::system_time const& wait_until)
{
for(;;)
{
state_data old_state=state;
for(;;)
{
state_data new_state=old_state;
if(new_state.shared_count || new_state.exclusive)
{
++new_state.exclusive_waiting;
if(!new_state.exclusive_waiting)
{
boost::throw_exception(boost::lock_error());
}
new_state.exclusive_waiting_blocked=true;
}
else
{
new_state.exclusive=true;
}
state_data const current_state=interlocked_compare_exchange(&state,new_state,old_state);
if(current_state==old_state)
{
break;
}
old_state=current_state;
}
if(!old_state.shared_count && !old_state.exclusive)
{
return true;
}
#ifndef UNDER_CE
const bool wait_all = true;
#else
const bool wait_all = false;
#endif
unsigned long const wait_res=detail::win32::WaitForMultipleObjectsEx(2,semaphores,wait_all,::boost::detail::get_milliseconds_until(wait_until), 0);
if(wait_res==detail::win32::timeout)
{
for(;;)
{
bool must_notify = false;
state_data new_state=old_state;
if(new_state.shared_count || new_state.exclusive)
{
if(new_state.exclusive_waiting)
{
if(!--new_state.exclusive_waiting)
{
new_state.exclusive_waiting_blocked=false;
must_notify = true;
}
}
}
else
{
new_state.exclusive=true;
}
state_data const current_state=interlocked_compare_exchange(&state,new_state,old_state);
if (must_notify)
{
BOOST_VERIFY(detail::win32::ReleaseSemaphore(semaphores[unlock_sem],1,0)!=0);
}
if(current_state==old_state)
{
break;
}
old_state=current_state;
}
if(!old_state.shared_count && !old_state.exclusive)
{
return true;
}
return false;
}
BOOST_ASSERT(wait_res<2);
}
}
#endif
#ifdef BOOST_THREAD_USES_CHRONO
template <class Rep, class Period>
bool try_lock_for(const chrono::duration<Rep, Period>& rel_time)
{
return try_lock_until(chrono::steady_clock::now() + rel_time);
}
template <class Clock, class Duration>
bool try_lock_until(const chrono::time_point<Clock, Duration>& t)
{
using namespace chrono;
system_clock::time_point s_now = system_clock::now();
typename Clock::time_point c_now = Clock::now();
return try_lock_until(s_now + ceil<system_clock::duration>(t - c_now));
}
template <class Duration>
bool try_lock_until(const chrono::time_point<chrono::system_clock, Duration>& t)
{
using namespace chrono;
typedef time_point<chrono::system_clock, chrono::system_clock::duration> sys_tmpt;
return try_lock_until(sys_tmpt(chrono::ceil<chrono::system_clock::duration>(t.time_since_epoch())));
}
bool try_lock_until(const chrono::time_point<chrono::system_clock, chrono::system_clock::duration>& tp)
{
for(;;)
{
state_data old_state=state;
for(;;)
{
state_data new_state=old_state;
if(new_state.shared_count || new_state.exclusive)
{
++new_state.exclusive_waiting;
if(!new_state.exclusive_waiting)
{
boost::throw_exception(boost::lock_error());
}
new_state.exclusive_waiting_blocked=true;
}
else
{
new_state.exclusive=true;
}
state_data const current_state=interlocked_compare_exchange(&state,new_state,old_state);
if(current_state==old_state)
{
break;
}
old_state=current_state;
}
if(!old_state.shared_count && !old_state.exclusive)
{
return true;
}
#ifndef UNDER_CE
const bool wait_all = true;
#else
const bool wait_all = false;
#endif
chrono::system_clock::time_point n = chrono::system_clock::now();
unsigned long wait_res;
if (tp>n) {
chrono::milliseconds rel_time= chrono::ceil<chrono::milliseconds>(tp-chrono::system_clock::now());
wait_res=detail::win32::WaitForMultipleObjectsEx(2,semaphores,wait_all,
static_cast<unsigned long>(rel_time.count()), 0);
} else {
wait_res=detail::win32::timeout;
}
if(wait_res==detail::win32::timeout)
{
for(;;)
{
bool must_notify = false;
state_data new_state=old_state;
if(new_state.shared_count || new_state.exclusive)
{
if(new_state.exclusive_waiting)
{
if(!--new_state.exclusive_waiting)
{
new_state.exclusive_waiting_blocked=false;
must_notify = true;
}
}
}
else
{
new_state.exclusive=true;
}
state_data const current_state=interlocked_compare_exchange(&state,new_state,old_state);
if (must_notify)
{
BOOST_VERIFY(detail::win32::ReleaseSemaphore(semaphores[unlock_sem],1,0)!=0);
}
if(current_state==old_state)
{
break;
}
old_state=current_state;
}
if(!old_state.shared_count && !old_state.exclusive)
{
return true;
}
return false;
}
BOOST_ASSERT(wait_res<2);
}
}
#endif
void unlock()
{
state_data old_state=state;
for(;;)
{
state_data new_state=old_state;
new_state.exclusive=false;
if(new_state.exclusive_waiting)
{
--new_state.exclusive_waiting;
new_state.exclusive_waiting_blocked=false;
}
new_state.shared_waiting=0;
state_data const current_state=interlocked_compare_exchange(&state,new_state,old_state);
if(current_state==old_state)
{
break;
}
old_state=current_state;
}
release_waiters(old_state);
}
void lock_upgrade()
{
for(;;)
{
state_data old_state=state;
for(;;)
{
state_data new_state=old_state;
if(new_state.exclusive || new_state.exclusive_waiting_blocked || new_state.upgrade)
{
++new_state.shared_waiting;
if(!new_state.shared_waiting)
{
boost::throw_exception(boost::lock_error());
}
}
else
{
++new_state.shared_count;
if(!new_state.shared_count)
{
boost::throw_exception(boost::lock_error());
}
new_state.upgrade=true;
}
state_data const current_state=interlocked_compare_exchange(&state,new_state,old_state);
if(current_state==old_state)
{
break;
}
old_state=current_state;
}
if(!(old_state.exclusive|| old_state.exclusive_waiting_blocked|| old_state.upgrade))
{
return;
}
BOOST_VERIFY(!detail::win32::WaitForSingleObjectEx(semaphores[unlock_sem],detail::win32::infinite, 0));
}
}
bool try_lock_upgrade()
{
state_data old_state=state;
for(;;)
{
state_data new_state=old_state;
if(new_state.exclusive || new_state.exclusive_waiting_blocked || new_state.upgrade)
{
return false;
}
else
{
++new_state.shared_count;
if(!new_state.shared_count)
{
return false;
}
new_state.upgrade=true;
}
state_data const current_state=interlocked_compare_exchange(&state,new_state,old_state);
if(current_state==old_state)
{
break;
}
old_state=current_state;
}
return true;
}
void unlock_upgrade()
{
state_data old_state=state;
for(;;)
{
state_data new_state=old_state;
new_state.upgrade=false;
bool const last_reader=!--new_state.shared_count;
new_state.shared_waiting=0;
if(last_reader)
{
if(new_state.exclusive_waiting)
{
--new_state.exclusive_waiting;
new_state.exclusive_waiting_blocked=false;
}
}
state_data const current_state=interlocked_compare_exchange(&state,new_state,old_state);
if(current_state==old_state)
{
if(last_reader)
{
release_waiters(old_state);
}
else {
release_shared_waiters(old_state);
}
// #7720
//else {
// release_waiters(old_state);
//}
break;
}
old_state=current_state;
}
}
void unlock_upgrade_and_lock()
{
state_data old_state=state;
for(;;)
{
state_data new_state=old_state;
bool const last_reader=!--new_state.shared_count;
if(last_reader)
{
new_state.upgrade=false;
new_state.exclusive=true;
}
state_data const current_state=interlocked_compare_exchange(&state,new_state,old_state);
if(current_state==old_state)
{
if(!last_reader)
{
BOOST_VERIFY(!detail::win32::WaitForSingleObjectEx(upgrade_sem,detail::win32::infinite, 0));
}
break;
}
old_state=current_state;
}
}
void unlock_and_lock_upgrade()
{
state_data old_state=state;
for(;;)
{
state_data new_state=old_state;
new_state.exclusive=false;
new_state.upgrade=true;
++new_state.shared_count;
if(new_state.exclusive_waiting)
{
--new_state.exclusive_waiting;
new_state.exclusive_waiting_blocked=false;
}
new_state.shared_waiting=0;
state_data const current_state=interlocked_compare_exchange(&state,new_state,old_state);
if(current_state==old_state)
{
break;
}
old_state=current_state;
}
release_waiters(old_state);
}
// bool try_unlock_upgrade_and_lock()
// {
// return false;
// }
//#ifdef BOOST_THREAD_USES_CHRONO
// template <class Rep, class Period>
// bool
// try_unlock_upgrade_and_lock_for(
// const chrono::duration<Rep, Period>& rel_time)
// {
// return try_unlock_upgrade_and_lock_until(
// chrono::steady_clock::now() + rel_time);
// }
// template <class Clock, class Duration>
// bool
// try_unlock_upgrade_and_lock_until(
// const chrono::time_point<Clock, Duration>& abs_time)
// {
// return false;
// }
//#endif
void unlock_and_lock_shared()
{
state_data old_state=state;
for(;;)
{
state_data new_state=old_state;
new_state.exclusive=false;
++new_state.shared_count;
if(new_state.exclusive_waiting)
{
--new_state.exclusive_waiting;
new_state.exclusive_waiting_blocked=false;
}
new_state.shared_waiting=0;
state_data const current_state=interlocked_compare_exchange(&state,new_state,old_state);
if(current_state==old_state)
{
break;
}
old_state=current_state;
}
release_waiters(old_state);
}
void unlock_upgrade_and_lock_shared()
{
state_data old_state=state;
for(;;)
{
state_data new_state=old_state;
new_state.upgrade=false;
if(new_state.exclusive_waiting)
{
--new_state.exclusive_waiting;
new_state.exclusive_waiting_blocked=false;
}
new_state.shared_waiting=0;
state_data const current_state=interlocked_compare_exchange(&state,new_state,old_state);
if(current_state==old_state)
{
break;
}
old_state=current_state;
}
release_waiters(old_state);
}
};
typedef shared_mutex upgrade_mutex;
}
#include <boost/config/abi_suffix.hpp>
#endif
+173
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@@ -0,0 +1,173 @@
// (C) Copyright John Maddock 2005-7.
// Use, modification and distribution are subject to 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)
#ifndef BOOST_TR1_DETAIL_CONFIG_HPP_INCLUDED
# define BOOST_TR1_DETAIL_CONFIG_HPP_INCLUDED
#include <cstddef>
#if (defined(__GNUC__) && !(defined(linux) || defined(__linux) || defined(__linux__))) \
|| (!defined(__FreeBSD__) && defined(__GNUC__)) \
|| (!defined(_AIX) && defined(__IBMCPP__) && (__IBMCPP__ >= 800))
// Disable use of #include_next on Linux as typically we are installed in a
// directory that is searched *after* the std lib include path.
#if !defined(BOOST_HAS_INCLUDE_NEXT)
# define BOOST_HAS_INCLUDE_NEXT
#endif
// Need to find out if we're using GLIBC:
#ifdef BOOST_TR1_UTILITY_INCLUDED
// Oops we're in a recursive include path!!
// Need to include utility, or some std lib header,
// but *not* via <utility> or <boost/config/no_tr1/utility.hpp>
# ifndef BOOST_TR1_NO_RECURSION
# define BOOST_TR1_NO_RECURSION
# define BOOST_TR1_NO_CONFIG_RECURSION
# endif
# if defined(BOOST_HAS_INCLUDE_NEXT) && !defined(BOOST_TR1_DISABLE_INCLUDE_NEXT)
# include_next <utility>
# else
# include BOOST_TR1_STD_HEADER(utility)
# endif
# ifdef BOOST_TR1_NO_CONFIG_RECURSION
# undef BOOST_TR1_NO_CONFIG_RECURSION
# undef BOOST_TR1_NO_RECURSION
# endif
#else
#include <boost/config/no_tr1/utility.hpp>
#endif
#endif
#if defined(__GLIBCXX__) && !defined(BOOST_TR1_PATH)
# define BOOST_TR1_PATH(name) tr1/name
#endif
#if !defined(BOOST_TR1_PATH)
# define BOOST_TR1_PATH(name) name
#endif
#define BOOST_TR1_HEADER(name) <BOOST_TR1_PATH(name)>
// Can't use BOOST_WORKAROUND here, it leads to recursive includes:
#if (defined(__BORLANDC__) && (__BORLANDC__ <= 0x600))
# define BOOST_TR1_USE_OLD_TUPLE
#endif
#ifdef __IBMCPP_TR1__
// turn on support for everything:
# define BOOST_HAS_TR1
#endif
#ifdef __GXX_EXPERIMENTAL_CXX0X__
# define BOOST_HAS_TR1_COMPLEX_OVERLOADS
# define BOOST_HAS_TR1_COMPLEX_INVERSE_TRIG
#endif
#ifdef BOOST_HAS_TR1
// turn on support for everything:
# define BOOST_HAS_TR1_ARRAY
# define BOOST_HAS_TR1_COMPLEX_OVERLOADS
# define BOOST_HAS_TR1_COMPLEX_INVERSE_TRIG
# define BOOST_HAS_TR1_REFERENCE_WRAPPER
# define BOOST_HAS_TR1_RESULT_OF
# define BOOST_HAS_TR1_MEM_FN
# define BOOST_HAS_TR1_BIND
# define BOOST_HAS_TR1_FUNCTION
# define BOOST_HAS_TR1_HASH
# define BOOST_HAS_TR1_SHARED_PTR
# define BOOST_HAS_TR1_RANDOM
# define BOOST_HAS_TR1_REGEX
# define BOOST_HAS_TR1_TUPLE
# define BOOST_HAS_TR1_TYPE_TRAITS
# define BOOST_HAS_TR1_UTILITY
# define BOOST_HAS_TR1_UNORDERED_MAP
# define BOOST_HAS_TR1_UNORDERED_SET
# define BOOST_HAS_TR1_CMATH
#endif
#if defined(__MWERKS__) && (__MWERKS__ >= 0x3205)
//
// Very preliminary MWCW support, may not be right:
//
# define BOOST_HAS_TR1_SHARED_PTR
# define BOOST_HAS_TR1_REFERENCE_WRAPPER
# define BOOST_HAS_TR1_FUNCTION
# define BOOST_HAS_TR1_TUPLE
# define BOOST_HAS_TR1_RESULT_OF
#endif
#ifdef BOOST_HAS_GCC_TR1
// turn on support for everything in gcc 4.0.x:
# define BOOST_HAS_TR1_ARRAY
#if (__GNUC__ * 100 + __GNUC_MINOR__) >= 403
//# define BOOST_HAS_TR1_COMPLEX_OVERLOADS
# define BOOST_HAS_TR1_COMPLEX_INVERSE_TRIG
#endif
# define BOOST_HAS_TR1_REFERENCE_WRAPPER
# define BOOST_HAS_TR1_RESULT_OF
# define BOOST_HAS_TR1_MEM_FN
# define BOOST_HAS_TR1_BIND
# define BOOST_HAS_TR1_FUNCTION
# define BOOST_HAS_TR1_HASH
# define BOOST_HAS_TR1_SHARED_PTR
#if (__GNUC__ * 100 + __GNUC_MINOR__) >= 403
# define BOOST_HAS_TR1_RANDOM
//# define BOOST_HAS_TR1_REGEX
#ifdef _GLIBCXX_USE_C99_MATH_TR1
# define BOOST_HAS_TR1_CMATH
#endif
#endif
# define BOOST_HAS_TR1_TUPLE
# define BOOST_HAS_TR1_TYPE_TRAITS
# define BOOST_HAS_TR1_UTILITY
# define BOOST_HAS_TR1_UNORDERED_MAP
# define BOOST_HAS_TR1_UNORDERED_SET
#endif
#if defined(_MSC_VER) && (_MSC_VER >= 1500) \
&& defined(_MSC_FULL_VER) && \
!defined(__SGI_STL_PORT) && \
!defined(_STLPORT_VERSION) && \
!defined(_RWSTD_VER_STR) && \
!defined(_RWSTD_VER)
//
// MSVC-9.0 defines a not-quite TR1 conforming hash
// function object in <functional>, so we must define
// this here, in addition the feature pack for VC9
// provides a more or less full TR1 implementation:
//
# if (defined(_HAS_TR1) && (_HAS_TR1 + 0)) || (_CPPLIB_VER >= 540)
# define BOOST_HAS_TR1_ARRAY
# define BOOST_HAS_TR1_REFERENCE_WRAPPER
# define BOOST_HAS_TR1_RESULT_OF
# define BOOST_HAS_TR1_MEM_FN
# define BOOST_HAS_TR1_BIND
# define BOOST_HAS_TR1_FUNCTION
# define BOOST_HAS_TR1_HASH
# define BOOST_HAS_TR1_SHARED_PTR
# define BOOST_HAS_TR1_RANDOM
# define BOOST_HAS_TR1_REGEX
# define BOOST_HAS_TR1_TUPLE
# define BOOST_HAS_TR1_TYPE_TRAITS
# define BOOST_HAS_TR1_UTILITY
# define BOOST_HAS_TR1_UNORDERED_MAP
# define BOOST_HAS_TR1_UNORDERED_SET
# else
# define BOOST_HAS_TR1_HASH
# endif
# if _MSC_VER >= 1600
# define BOOST_HAS_CPP_0X
# endif
# if _MSC_VER >= 1700
# define BOOST_HAS_TR1_COMPLEX_OVERLOADS
# endif
#endif
#include <boost/config.hpp>
#endif