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96 lines
3.9 KiB
C++
96 lines
3.9 KiB
C++
/*
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Copyright 2005-2014 Intel Corporation. All Rights Reserved.
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This file is part of Threading Building Blocks. Threading Building Blocks is free software;
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you can redistribute it 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. Threading Building Blocks is
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distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details. You should have received a copy of
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the GNU General Public License along with Threading Building Blocks; if not, write to the
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Free Software 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 library without
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restriction. Specifically, if other files instantiate templates or use macros or inline
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functions from this file, or you compile this file and link it with other files to produce
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an executable, this file does not by itself cause the resulting executable to be covered
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by the GNU General Public License. This exception does not however invalidate any other
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reasons why the executable file might be covered by the GNU General Public License.
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*/
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#ifndef __TBB_parallel_for_each_H
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#define __TBB_parallel_for_each_H
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#include "parallel_do.h"
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namespace tbb {
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//! @cond INTERNAL
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namespace internal {
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// The class calls user function in operator()
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template <typename Function, typename Iterator>
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class parallel_for_each_body : internal::no_assign {
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const Function &my_func;
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public:
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parallel_for_each_body(const Function &_func) : my_func(_func) {}
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parallel_for_each_body(const parallel_for_each_body<Function, Iterator> &_caller) : my_func(_caller.my_func) {}
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void operator() ( typename std::iterator_traits<Iterator>::reference value ) const {
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my_func(value);
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}
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};
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} // namespace internal
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//! @endcond
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/** \name parallel_for_each
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**/
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//@{
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//! Calls function f for all items from [first, last) interval using user-supplied context
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/** @ingroup algorithms */
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#if __TBB_TASK_GROUP_CONTEXT
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template<typename InputIterator, typename Function>
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void parallel_for_each(InputIterator first, InputIterator last, const Function& f, task_group_context &context) {
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internal::parallel_for_each_body<Function, InputIterator> body(f);
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tbb::parallel_do (first, last, body, context);
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}
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//! Calls function f for all items from rng using user-supplied context
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/** @ingroup algorithms */
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template<typename Range, typename Function>
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void parallel_for_each(Range& rng, const Function& f, task_group_context& context) {
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parallel_for_each(tbb::internal::first(rng), tbb::internal::last(rng), f, context);
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}
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//! Calls function f for all items from const rng user-supplied context
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/** @ingroup algorithms */
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template<typename Range, typename Function>
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void parallel_for_each(const Range& rng, const Function& f, task_group_context& context) {
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parallel_for_each(tbb::internal::first(rng), tbb::internal::last(rng), f, context);
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}
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#endif /* __TBB_TASK_GROUP_CONTEXT */
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//! Uses default context
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template<typename InputIterator, typename Function>
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void parallel_for_each(InputIterator first, InputIterator last, const Function& f) {
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internal::parallel_for_each_body<Function, InputIterator> body(f);
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tbb::parallel_do (first, last, body);
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}
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//! Uses default context
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template<typename Range, typename Function>
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void parallel_for_each(Range& rng, const Function& f) {
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parallel_for_each(tbb::internal::first(rng), tbb::internal::last(rng), f);
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}
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//! Uses default context
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template<typename Range, typename Function>
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void parallel_for_each(const Range& rng, const Function& f) {
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parallel_for_each(tbb::internal::first(rng), tbb::internal::last(rng), f);
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}
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//@}
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} // namespace
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#endif /* __TBB_parallel_for_each_H */
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