__gnu_debug::_Safe_sequence_base Class Reference

Base class that supports tracking of iterators that reference a sequence. More...

Inheritance diagram for __gnu_debug::_Safe_sequence_base:

Inheritance graph

List of all members.

Public Member Functions

Public Attributes

Protected Member Functions


Detailed Description

Base class that supports tracking of iterators that reference a sequence.

The _Safe_sequence_base class provides basic support for tracking iterators into a sequence. Sequences that track iterators must derived from _Safe_sequence_base publicly, so that safe iterators (which inherit _Safe_iterator_base) can attach to them. This class contains two linked lists of iterators, one for constant iterators and one for mutable 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" sequences may fail to provide the exception-safety guarantees required by the C++ standard.

Definition at line 159 of file safe_base.h.


Constructor & Destructor Documentation

__gnu_debug::_Safe_sequence_base::~_Safe_sequence_base (  )  [inline, protected]

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

Definition at line 179 of file safe_base.h.

References _M_detach_all().


Member Function Documentation

void __gnu_debug::_Safe_sequence_base::_M_detach_all (  )  [protected]

Detach all iterators, leaving them singular.

Referenced by ~_Safe_sequence_base().

void __gnu_debug::_Safe_sequence_base::_M_detach_singular (  )  [protected]

Detach all singular iterators.

Postcondition:
for all iterators i attached to this sequence, i->_M_version == _M_version.

__gnu_cxx::__mutex& __gnu_debug::_Safe_sequence_base::_M_get_mutex (  )  [protected]

void __gnu_debug::_Safe_sequence_base::_M_invalidate_all (  )  const [inline]

Invalidates all iterators.

Definition at line 215 of file safe_base.h.

References _M_version.

void __gnu_debug::_Safe_sequence_base::_M_revalidate_singular (  )  [protected]

Revalidates all attached singular iterators. This method may be used to validate iterators that were invalidated before (but for some reason, such as an exception, need to become valid again).

void __gnu_debug::_Safe_sequence_base::_M_swap ( _Safe_sequence_base __x  )  [protected]

Swap this sequence with the given sequence. 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

The container version number. This number may never be 0.

Definition at line 169 of file safe_base.h.

Referenced by _M_invalidate_all().


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

Generated on Thu Jul 23 21:17:26 2009 for libstdc++ by  doxygen 1.5.8