diff options
Diffstat (limited to '8/sources/cxx-stl/gnu-libstdc++/4.7/include/debug/safe_sequence.tcc')
| -rw-r--r-- | 8/sources/cxx-stl/gnu-libstdc++/4.7/include/debug/safe_sequence.tcc | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/8/sources/cxx-stl/gnu-libstdc++/4.7/include/debug/safe_sequence.tcc b/8/sources/cxx-stl/gnu-libstdc++/4.7/include/debug/safe_sequence.tcc new file mode 100644 index 0000000..bf0295c --- /dev/null +++ b/8/sources/cxx-stl/gnu-libstdc++/4.7/include/debug/safe_sequence.tcc @@ -0,0 +1,150 @@ +// Safe sequence implementation -*- C++ -*- + +// Copyright (C) 2010 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// <http://www.gnu.org/licenses/>. + +/** @file debug/safe_sequence.tcc + * This file is a GNU debug extension to the Standard C++ Library. + */ + +#ifndef _GLIBCXX_DEBUG_SAFE_SEQUENCE_TCC +#define _GLIBCXX_DEBUG_SAFE_SEQUENCE_TCC 1 + +namespace __gnu_debug +{ + template<typename _Sequence> + template<typename _Predicate> + void + _Safe_sequence<_Sequence>:: + _M_invalidate_if(_Predicate __pred) + { + typedef typename _Sequence::iterator iterator; + typedef typename _Sequence::const_iterator const_iterator; + + __gnu_cxx::__scoped_lock sentry(this->_M_get_mutex()); + for (_Safe_iterator_base* __iter = _M_iterators; __iter;) + { + iterator* __victim = static_cast<iterator*>(__iter); + __iter = __iter->_M_next; + if (!__victim->_M_singular() && __pred(__victim->base())) + { + __victim->_M_invalidate(); + } + } + + for (_Safe_iterator_base* __iter2 = _M_const_iterators; __iter2;) + { + const_iterator* __victim = static_cast<const_iterator*>(__iter2); + __iter2 = __iter2->_M_next; + if (!__victim->_M_singular() && __pred(__victim->base())) + { + __victim->_M_invalidate(); + } + } + } + + template<typename _Sequence> + template<typename _Predicate> + void + _Safe_sequence<_Sequence>:: + _M_transfer_from_if(_Safe_sequence& __from, _Predicate __pred) + { + typedef typename _Sequence::iterator iterator; + typedef typename _Sequence::const_iterator const_iterator; + + _Safe_iterator_base* __transfered_iterators = 0; + _Safe_iterator_base* __transfered_const_iterators = 0; + _Safe_iterator_base* __last_iterator = 0; + _Safe_iterator_base* __last_const_iterator = 0; + { + // We lock __from first and detach iterator(s) to transfer + __gnu_cxx::__scoped_lock sentry(__from._M_get_mutex()); + + for (_Safe_iterator_base* __iter = __from._M_iterators; __iter;) + { + iterator* __victim = static_cast<iterator*>(__iter); + __iter = __iter->_M_next; + if (!__victim->_M_singular() && __pred(__victim->base())) + { + __victim->_M_detach_single(); + if (__transfered_iterators) + { + __victim->_M_next = __transfered_iterators; + __transfered_iterators->_M_prior = __victim; + } + else + __last_iterator = __victim; + __victim->_M_sequence = this; + __victim->_M_version = this->_M_version; + __transfered_iterators = __victim; + } + } + + for (_Safe_iterator_base* __iter2 = __from._M_const_iterators; + __iter2;) + { + const_iterator* __victim = static_cast<const_iterator*>(__iter2); + __iter2 = __iter2->_M_next; + if (!__victim->_M_singular() && __pred(__victim->base())) + { + __victim->_M_detach_single(); + if (__transfered_const_iterators) + { + __victim->_M_next = __transfered_const_iterators; + __transfered_const_iterators->_M_prior = __victim; + } + else + __last_const_iterator = __victim; + __victim->_M_sequence = this; + __victim->_M_version = this->_M_version; + __transfered_const_iterators = __victim; + } + } + } + + // Now we can lock *this and add the transfered iterators if any + if (__last_iterator || __last_const_iterator) + { + __gnu_cxx::__scoped_lock sentry(this->_M_get_mutex()); + if (__last_iterator) + { + if (this->_M_iterators) + { + this->_M_iterators->_M_prior = __last_iterator; + __last_iterator->_M_next = this->_M_iterators; + } + this->_M_iterators = __transfered_iterators; + } + if (__last_const_iterator) + { + if (this->_M_const_iterators) + { + this->_M_const_iterators->_M_prior = __last_const_iterator; + __last_const_iterator->_M_next = this->_M_const_iterators; + } + this->_M_const_iterators = __transfered_const_iterators; + } + } + } +} // namespace __gnu_debug + +#endif |