X-Git-Url: https://oss.titaniummirror.com/gitweb?a=blobdiff_plain;f=libstdc%2B%2B-v3%2Finclude%2Fparallel%2Ftags.h;fp=libstdc%2B%2B-v3%2Finclude%2Fparallel%2Ftags.h;h=bc1a7e5c6352222fee694f15349f5934663661fd;hb=6fed43773c9b0ce596dca5686f37ac3fc0fa11c0;hp=0000000000000000000000000000000000000000;hpb=27b11d56b743098deb193d510b337ba22dc52e5c;p=msp430-gcc.git

diff --git a/libstdc++-v3/include/parallel/tags.h b/libstdc++-v3/include/parallel/tags.h
new file mode 100644
index 00000000..bc1a7e5c
--- /dev/null
+++ b/libstdc++-v3/include/parallel/tags.h
@@ -0,0 +1,191 @@
+// -*- C++ -*-
+
+// Copyright (C) 2007, 2008, 2009 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 parallel/tags.h
+ * @brief Tags for compile-time selection.
+ *  This file is a GNU parallel extension to the Standard C++ Library.
+ */
+
+// Written by Johannes Singler and Felix Putze.
+
+#ifndef _GLIBCXX_PARALLEL_TAGS_H
+#define _GLIBCXX_PARALLEL_TAGS_H 1
+
+#include <omp.h>
+#include <parallel/types.h>
+
+namespace __gnu_parallel
+{
+  /** @brief Forces sequential execution at compile time. */
+  struct sequential_tag { };
+
+  /** @brief Recommends parallel execution at compile time,
+   *  optionally using a user-specified number of threads. */
+  struct parallel_tag
+  {
+    private:
+      thread_index_t num_threads;
+
+    public:
+      /** @brief Default constructor. Use default number of threads. */
+      parallel_tag()
+      {
+        this->num_threads = 0;
+      }
+
+      /** @brief Default constructor. Recommend number of threads to use.
+       *  @param num_threads Desired number of threads. */
+      parallel_tag(thread_index_t num_threads)
+      {
+        this->num_threads = num_threads;
+      }
+
+      /** @brief Find out desired number of threads.
+       *  @return Desired number of threads. */
+      inline thread_index_t get_num_threads()
+      {
+        if(num_threads == 0)
+          return omp_get_max_threads();
+        else
+          return num_threads;
+      }
+
+      /** @brief Set the desired number of threads.
+       *  @param num_threads Desired number of threads. */
+      inline void set_num_threads(thread_index_t num_threads)
+      {
+        this->num_threads = num_threads;
+      }
+  };
+
+  /** @brief Recommends parallel execution using the
+      default parallel algorithm. */
+  struct default_parallel_tag : public parallel_tag
+  {
+      default_parallel_tag() { }
+      default_parallel_tag(thread_index_t num_threads)
+          : parallel_tag(num_threads) { }
+  };
+
+  /** @brief Recommends parallel execution using dynamic
+      load-balancing at compile time. */
+  struct balanced_tag : public parallel_tag { };
+
+  /** @brief Recommends parallel execution using static
+      load-balancing at compile time. */
+  struct unbalanced_tag : public parallel_tag { };
+
+  /** @brief Recommends parallel execution using OpenMP dynamic
+      load-balancing at compile time. */
+  struct omp_loop_tag : public parallel_tag { };
+
+  /** @brief Recommends parallel execution using OpenMP static
+      load-balancing at compile time. */
+  struct omp_loop_static_tag : public parallel_tag { };
+
+
+  /** @brief Base class for for std::find() variants. */
+  struct find_tag { };
+
+
+  /** @brief Forces parallel merging
+   *  with exact splitting, at compile time. */
+  struct exact_tag : public parallel_tag
+  {
+      exact_tag() { }
+      exact_tag(thread_index_t num_threads)
+          : parallel_tag(num_threads) { }
+  };
+
+  /** @brief Forces parallel merging
+   *  with exact splitting, at compile time. */
+  struct sampling_tag : public parallel_tag
+  {
+      sampling_tag() { }
+      sampling_tag(thread_index_t num_threads)
+          : parallel_tag(num_threads) { }
+  };
+
+
+  /** @brief Forces parallel sorting using multiway mergesort
+   *  at compile time. */
+  struct multiway_mergesort_tag : public parallel_tag
+  {
+      multiway_mergesort_tag() { }
+      multiway_mergesort_tag(thread_index_t num_threads)
+          : parallel_tag(num_threads) { }
+  };
+
+  /** @brief Forces parallel sorting using multiway mergesort
+   *  with exact splitting at compile time. */
+  struct multiway_mergesort_exact_tag : public parallel_tag
+  {
+      multiway_mergesort_exact_tag() { }
+      multiway_mergesort_exact_tag(thread_index_t num_threads)
+          : parallel_tag(num_threads) { }
+  };
+
+  /** @brief Forces parallel sorting using multiway mergesort
+   *  with splitting by sampling at compile time. */
+  struct multiway_mergesort_sampling_tag : public parallel_tag
+  {
+      multiway_mergesort_sampling_tag() { }
+      multiway_mergesort_sampling_tag(thread_index_t num_threads)
+          : parallel_tag(num_threads) { }
+  };
+
+  /** @brief Forces parallel sorting using unbalanced quicksort
+   *  at compile time. */
+  struct quicksort_tag : public parallel_tag
+  {
+      quicksort_tag() { }
+      quicksort_tag(thread_index_t num_threads)
+          : parallel_tag(num_threads) { }
+  };
+
+  /** @brief Forces parallel sorting using balanced quicksort
+   *  at compile time. */
+  struct balanced_quicksort_tag : public parallel_tag
+  {
+      balanced_quicksort_tag() { }
+      balanced_quicksort_tag(thread_index_t num_threads)
+          : parallel_tag(num_threads) { }
+  };
+
+
+  /** @brief Selects the growing block size variant for std::find().
+      @see _GLIBCXX_FIND_GROWING_BLOCKS */
+  struct growing_blocks_tag : public find_tag { };
+
+  /** @brief Selects the constant block size variant for std::find().
+      @see _GLIBCXX_FIND_CONSTANT_SIZE_BLOCKS */
+  struct constant_size_blocks_tag : public find_tag { };
+
+  /** @brief Selects the equal splitting variant for std::find().
+      @see _GLIBCXX_FIND_EQUAL_SPLIT */
+  struct equal_split_tag : public find_tag { };
+}
+
+#endif /* _GLIBCXX_PARALLEL_TAGS_H */