__gnu_debug::_Safe_unordered_container_base Class Reference

Base class that supports tracking of local iterators that reference an unordered container. More...

#include <debug/safe_unordered_base.h>

Inheritance diagram for __gnu_debug::_Safe_unordered_container_base:

Public Member Functions
void	_M_attach_local (_Safe_iterator_base *__it, bool __constant)
void	_M_attach_local_single (_Safe_iterator_base *__it, bool __constant) throw ()
void	_M_detach_local (_Safe_iterator_base *__it)
void	_M_detach_local_single (_Safe_iterator_base *__it) throw ()
Public Member Functions inherited from __gnu_debug::_Safe_sequence_base
void	_M_invalidate_all () const
void	_M_attach (_Safe_iterator_base *__it, bool __constant)
void	_M_attach_single (_Safe_iterator_base *__it, bool __constant) throw ()
void	_M_detach (_Safe_iterator_base *__it)
void	_M_detach_single (_Safe_iterator_base *__it) throw ()

Public Attributes
_Safe_iterator_base *	_M_local_iterators
	The list of mutable local iterators that reference this container. More...
_Safe_iterator_base *	_M_const_local_iterators
	The list of constant local iterators that reference this container. More...
Public Attributes inherited from __gnu_debug::_Safe_sequence_base
_Safe_iterator_base *	_M_iterators
	The list of mutable iterators that reference this container. More...
_Safe_iterator_base *	_M_const_iterators
	The list of constant iterators that reference this container. More...
unsigned int	_M_version
	The container version number. This number may never be 0. More...

Protected Member Functions
	_Safe_unordered_container_base ()
	_Safe_unordered_container_base (const _Safe_unordered_container_base &) noexcept
	_Safe_unordered_container_base (_Safe_unordered_container_base &&__x) noexcept
	~_Safe_unordered_container_base ()
void	_M_detach_all ()
void	_M_swap (_Safe_unordered_container_base &__x)
Protected Member Functions inherited from __gnu_debug::_Safe_sequence_base
	_Safe_sequence_base ()
	~_Safe_sequence_base ()
void	_M_detach_all ()
void	_M_detach_singular ()
void	_M_revalidate_singular ()
void	_M_swap (_Safe_sequence_base &__x)
__gnu_cxx::__mutex &	_M_get_mutex () throw ()

Private Types
typedef _Safe_sequence_base	_Base

Detailed Description

Base class that supports tracking of local iterators that reference an unordered container.

The _Safe_unordered_container_base class provides basic support for tracking iterators into an unordered container. Containers that track iterators must derived from _Safe_unordered_container_base publicly, so that safe iterators (which inherit _Safe_iterator_base) can attach to them. This class contains four linked lists of iterators, one for constant iterators, one for mutable iterators, one for constant local iterators, one for mutable local iterators and a version number that allows very fast invalidation of all iterators that reference the container.

This class must ensure that no operation on it may throw an exception, otherwise safe containers may fail to provide the exception-safety guarantees required by the C++ standard.

Member Typedef Documentation

typedef _Safe_sequence_base __gnu_debug::_Safe_unordered_container_base::_Base

private

Constructor & Destructor Documentation

__gnu_debug::_Safe_unordered_container_base::_Safe_unordered_container_base ( )

inlineprotected

    : _M_local_iterators(nullptr), _M_const_local_iterators(nullptr)
    { }

__gnu_debug::_Safe_unordered_container_base::_Safe_unordered_container_base ( const _Safe_unordered_container_base &  )

inlineprotectednoexcept

    : _Safe_unordered_container_base() { }

__gnu_debug::_Safe_unordered_container_base::_Safe_unordered_container_base ( _Safe_unordered_container_base &&  __x )

inlineprotectednoexcept

    : _Safe_unordered_container_base()
    { this->_M_swap(__x); }

__gnu_debug::_Safe_unordered_container_base::~_Safe_unordered_container_base ( )

inlineprotected

Notify all iterators that reference this container that the container is being destroyed.

    { this->_M_detach_all(); }

Member Function Documentation

void __gnu_debug::_Safe_unordered_container_base::_M_attach_local	(	_Safe_iterator_base *	__it,
		bool	__constant
	)

Attach an iterator to this container.

void __gnu_debug::_Safe_unordered_container_base::_M_attach_local_single	(	_Safe_iterator_base *	__it,
		bool	__constant
	)
throw	(
	)

Likewise but not thread safe.

void __gnu_debug::_Safe_unordered_container_base::_M_detach_all ( )

protected

Detach all iterators, leaving them singular.

void __gnu_debug::_Safe_unordered_container_base::_M_detach_local

(

_Safe_iterator_base *

__it

)

Detach an iterator from this container

void __gnu_debug::_Safe_unordered_container_base::_M_detach_local_single	(	_Safe_iterator_base *	__it	)
throw	(
	)

Likewise but not thread safe.

void __gnu_debug::_Safe_unordered_container_base::_M_swap ( _Safe_unordered_container_base &  __x )

protected

Swap this container with the given container. This operation also swaps ownership of the iterators, so that when the operation is complete all iterators that originally referenced one container now reference the other container.

Member Data Documentation

_Safe_iterator_base* __gnu_debug::_Safe_unordered_container_base::_M_const_local_iterators

The list of constant local iterators that reference this container.

_Safe_iterator_base* __gnu_debug::_Safe_unordered_container_base::_M_local_iterators

The list of mutable local iterators that reference this container.

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The documentation for this class was generated from the following file:

• GCC4/inc/debug/safe_unordered_base.h