92 lines
3.5 KiB
C++
92 lines
3.5 KiB
C++
/*
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* Copyright (C) 2013, The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef LATINIME_SPARSE_TABLE_DICT_CONTENT_H
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#define LATINIME_SPARSE_TABLE_DICT_CONTENT_H
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#include <cstdio>
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#include "defines.h"
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#include "dictionary/structure/v4/ver4_dict_constants.h"
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#include "dictionary/utils/buffer_with_extendable_buffer.h"
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#include "dictionary/utils/sparse_table.h"
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#include "utils/byte_array_view.h"
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namespace latinime {
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// TODO: Support multiple contents.
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class SparseTableDictContent {
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public:
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AK_FORCE_INLINE SparseTableDictContent(const ReadWriteByteArrayView *const buffers,
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const int sparseTableBlockSize, const int sparseTableDataSize)
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: mExpandableLookupTableBuffer(buffers[LOOKUP_TABLE_BUFFER_INDEX],
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BufferWithExtendableBuffer::DEFAULT_MAX_ADDITIONAL_BUFFER_SIZE),
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mExpandableAddressTableBuffer(buffers[ADDRESS_TABLE_BUFFER_INDEX],
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BufferWithExtendableBuffer::DEFAULT_MAX_ADDITIONAL_BUFFER_SIZE),
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mExpandableContentBuffer(buffers[CONTENT_BUFFER_INDEX],
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BufferWithExtendableBuffer::DEFAULT_MAX_ADDITIONAL_BUFFER_SIZE),
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mAddressLookupTable(&mExpandableLookupTableBuffer, &mExpandableAddressTableBuffer,
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sparseTableBlockSize, sparseTableDataSize) {}
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SparseTableDictContent(const int sparseTableBlockSize, const int sparseTableDataSize)
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: mExpandableLookupTableBuffer(Ver4DictConstants::MAX_DICTIONARY_SIZE),
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mExpandableAddressTableBuffer(Ver4DictConstants::MAX_DICTIONARY_SIZE),
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mExpandableContentBuffer(Ver4DictConstants::MAX_DICTIONARY_SIZE),
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mAddressLookupTable(&mExpandableLookupTableBuffer, &mExpandableAddressTableBuffer,
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sparseTableBlockSize, sparseTableDataSize) {}
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virtual ~SparseTableDictContent() {}
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bool isNearSizeLimit() const {
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return mExpandableLookupTableBuffer.isNearSizeLimit()
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|| mExpandableAddressTableBuffer.isNearSizeLimit()
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|| mExpandableContentBuffer.isNearSizeLimit();
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}
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protected:
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SparseTable *getUpdatableAddressLookupTable() {
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return &mAddressLookupTable;
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}
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const SparseTable *getAddressLookupTable() const {
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return &mAddressLookupTable;
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}
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BufferWithExtendableBuffer *getWritableContentBuffer() {
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return &mExpandableContentBuffer;
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}
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const BufferWithExtendableBuffer *getContentBuffer() const {
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return &mExpandableContentBuffer;
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}
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bool flush(FILE *const file) const;
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private:
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DISALLOW_IMPLICIT_CONSTRUCTORS(SparseTableDictContent);
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static const int LOOKUP_TABLE_BUFFER_INDEX;
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static const int ADDRESS_TABLE_BUFFER_INDEX;
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static const int CONTENT_BUFFER_INDEX;
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BufferWithExtendableBuffer mExpandableLookupTableBuffer;
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BufferWithExtendableBuffer mExpandableAddressTableBuffer;
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BufferWithExtendableBuffer mExpandableContentBuffer;
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SparseTable mAddressLookupTable;
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};
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} // namespace latinime
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#endif /* LATINIME_SPARSE_TABLE_DICT_CONTENT_H */
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