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80 lines
2.8 KiB
80 lines
2.8 KiB
/*
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Copyright 2005-2013 Intel Corporation. All Rights Reserved.
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This file is part of Threading Building Blocks.
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Threading Building Blocks is free software; you can redistribute it
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and/or modify it under the terms of the GNU General Public License
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version 2 as published by the Free Software Foundation.
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Threading Building Blocks is distributed in the hope that it will be
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useful, but WITHOUT ANY WARRANTY; without even the implied warranty
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of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Threading Building Blocks; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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As a special exception, you may use this file as part of a free software
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library without restriction. Specifically, if other files instantiate
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templates or use macros or inline functions from this file, or you compile
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this file and link it with other files to produce an executable, this
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file does not by itself cause the resulting executable to be covered by
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the GNU General Public License. This exception does not however
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invalidate any other reasons why the executable file might be covered by
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the GNU General Public License.
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*/
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#ifndef __TBB_combinable_H
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#define __TBB_combinable_H
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#include "enumerable_thread_specific.h"
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#include "cache_aligned_allocator.h"
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namespace tbb {
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/** \name combinable
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**/
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//@{
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//! Thread-local storage with optional reduction
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/** @ingroup containers */
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template <typename T>
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class combinable {
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private:
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typedef typename tbb::cache_aligned_allocator<T> my_alloc;
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typedef typename tbb::enumerable_thread_specific<T, my_alloc, ets_no_key> my_ets_type;
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my_ets_type my_ets;
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public:
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combinable() { }
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template <typename finit>
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combinable( finit _finit) : my_ets(_finit) { }
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//! destructor
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~combinable() {
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}
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combinable(const combinable& other) : my_ets(other.my_ets) { }
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combinable & operator=( const combinable & other) { my_ets = other.my_ets; return *this; }
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void clear() { my_ets.clear(); }
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T& local() { return my_ets.local(); }
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T& local(bool & exists) { return my_ets.local(exists); }
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// combine_func_t has signature T(T,T) or T(const T&, const T&)
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template <typename combine_func_t>
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T combine(combine_func_t f_combine) { return my_ets.combine(f_combine); }
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// combine_func_t has signature void(T) or void(const T&)
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template <typename combine_func_t>
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void combine_each(combine_func_t f_combine) { my_ets.combine_each(f_combine); }
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};
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} // namespace tbb
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#endif /* __TBB_combinable_H */
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