LatinIME/native/jni/src/dictionary/structure/v4/content/sparse_table_dict_content.h

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3.5 KiB
C++

/*
* Copyright (C) 2013, The Android Open Source Project
*
* Licensed 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.
*/
#ifndef LATINIME_SPARSE_TABLE_DICT_CONTENT_H
#define LATINIME_SPARSE_TABLE_DICT_CONTENT_H
#include <cstdio>
#include "defines.h"
#include "dictionary/structure/v4/ver4_dict_constants.h"
#include "dictionary/utils/buffer_with_extendable_buffer.h"
#include "dictionary/utils/sparse_table.h"
#include "utils/byte_array_view.h"
namespace latinime {
// TODO: Support multiple contents.
class SparseTableDictContent {
public:
AK_FORCE_INLINE SparseTableDictContent(const ReadWriteByteArrayView *const buffers,
const int sparseTableBlockSize, const int sparseTableDataSize)
: mExpandableLookupTableBuffer(buffers[LOOKUP_TABLE_BUFFER_INDEX],
BufferWithExtendableBuffer::DEFAULT_MAX_ADDITIONAL_BUFFER_SIZE),
mExpandableAddressTableBuffer(buffers[ADDRESS_TABLE_BUFFER_INDEX],
BufferWithExtendableBuffer::DEFAULT_MAX_ADDITIONAL_BUFFER_SIZE),
mExpandableContentBuffer(buffers[CONTENT_BUFFER_INDEX],
BufferWithExtendableBuffer::DEFAULT_MAX_ADDITIONAL_BUFFER_SIZE),
mAddressLookupTable(&mExpandableLookupTableBuffer, &mExpandableAddressTableBuffer,
sparseTableBlockSize, sparseTableDataSize) {}
SparseTableDictContent(const int sparseTableBlockSize, const int sparseTableDataSize)
: mExpandableLookupTableBuffer(Ver4DictConstants::MAX_DICTIONARY_SIZE),
mExpandableAddressTableBuffer(Ver4DictConstants::MAX_DICTIONARY_SIZE),
mExpandableContentBuffer(Ver4DictConstants::MAX_DICTIONARY_SIZE),
mAddressLookupTable(&mExpandableLookupTableBuffer, &mExpandableAddressTableBuffer,
sparseTableBlockSize, sparseTableDataSize) {}
virtual ~SparseTableDictContent() {}
bool isNearSizeLimit() const {
return mExpandableLookupTableBuffer.isNearSizeLimit()
|| mExpandableAddressTableBuffer.isNearSizeLimit()
|| mExpandableContentBuffer.isNearSizeLimit();
}
protected:
SparseTable *getUpdatableAddressLookupTable() {
return &mAddressLookupTable;
}
const SparseTable *getAddressLookupTable() const {
return &mAddressLookupTable;
}
BufferWithExtendableBuffer *getWritableContentBuffer() {
return &mExpandableContentBuffer;
}
const BufferWithExtendableBuffer *getContentBuffer() const {
return &mExpandableContentBuffer;
}
bool flush(FILE *const file) const;
private:
DISALLOW_IMPLICIT_CONSTRUCTORS(SparseTableDictContent);
static const int LOOKUP_TABLE_BUFFER_INDEX;
static const int ADDRESS_TABLE_BUFFER_INDEX;
static const int CONTENT_BUFFER_INDEX;
BufferWithExtendableBuffer mExpandableLookupTableBuffer;
BufferWithExtendableBuffer mExpandableAddressTableBuffer;
BufferWithExtendableBuffer mExpandableContentBuffer;
SparseTable mAddressLookupTable;
};
} // namespace latinime
#endif /* LATINIME_SPARSE_TABLE_DICT_CONTENT_H */