| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <algorithm> |
| |
| #include "NativeTask.h" |
| #include "lib/commons.h" |
| #include "util/Timer.h" |
| #include "lib/Buffers.h" |
| #include "lib/MapOutputSpec.h" |
| #include "lib/IFile.h" |
| #include "lib/SpillInfo.h" |
| #include "lib/Combiner.h" |
| |
| #include "lib/MemoryBlock.h" |
| #include "lib/MemoryPool.h" |
| #include "util/DualPivotQuickSort.h" |
| |
| namespace NativeTask { |
| |
| class MemoryPool; |
| |
| MemoryBlock::MemoryBlock(char * pos, uint32_t size) |
| : _base(pos), _size(size), _position(0), _sorted(false) { |
| } |
| |
| KVBuffer * MemoryBlock::getKVBuffer(int index) { |
| if (index < 0 || index >= _kvOffsets.size()) { |
| return NULL; |
| } |
| uint32_t offset = _kvOffsets.at(index); |
| KVBuffer * kvbuffer = (KVBuffer*)(_base + offset); |
| return kvbuffer; |
| } |
| |
| void MemoryBlock::sort(SortAlgorithm type, ComparatorPtr comparator) { |
| if ((!_sorted) && (_kvOffsets.size() > 1)) { |
| switch (type) { |
| case CPPSORT: |
| std::sort(_kvOffsets.begin(), _kvOffsets.end(), ComparatorForStdSort(_base, comparator)); |
| break; |
| case DUALPIVOTSORT: { |
| DualPivotQuicksort(_kvOffsets, ComparatorForDualPivotSort(_base, comparator)); |
| } |
| break; |
| default: |
| THROW_EXCEPTION(UnsupportException, "Sort Algorithm not support"); |
| } |
| } |
| _sorted = true; |
| } |
| } // namespace NativeTask |