1 /* 2 * Copyright (C) 2013, The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef LATINIME_SPARSE_TABLE_DICT_CONTENT_H 18 #define LATINIME_SPARSE_TABLE_DICT_CONTENT_H 19 20 #include <cstdio> 21 22 #include "defines.h" 23 #include "dictionary/structure/v4/ver4_dict_constants.h" 24 #include "dictionary/utils/buffer_with_extendable_buffer.h" 25 #include "dictionary/utils/sparse_table.h" 26 #include "utils/byte_array_view.h" 27 28 namespace latinime { 29 30 // TODO: Support multiple contents. 31 class SparseTableDictContent { 32 public: SparseTableDictContent(const ReadWriteByteArrayView * const buffers,const int sparseTableBlockSize,const int sparseTableDataSize)33 AK_FORCE_INLINE SparseTableDictContent(const ReadWriteByteArrayView *const buffers, 34 const int sparseTableBlockSize, const int sparseTableDataSize) 35 : mExpandableLookupTableBuffer(buffers[LOOKUP_TABLE_BUFFER_INDEX], 36 BufferWithExtendableBuffer::DEFAULT_MAX_ADDITIONAL_BUFFER_SIZE), 37 mExpandableAddressTableBuffer(buffers[ADDRESS_TABLE_BUFFER_INDEX], 38 BufferWithExtendableBuffer::DEFAULT_MAX_ADDITIONAL_BUFFER_SIZE), 39 mExpandableContentBuffer(buffers[CONTENT_BUFFER_INDEX], 40 BufferWithExtendableBuffer::DEFAULT_MAX_ADDITIONAL_BUFFER_SIZE), 41 mAddressLookupTable(&mExpandableLookupTableBuffer, &mExpandableAddressTableBuffer, 42 sparseTableBlockSize, sparseTableDataSize) {} 43 SparseTableDictContent(const int sparseTableBlockSize,const int sparseTableDataSize)44 SparseTableDictContent(const int sparseTableBlockSize, const int sparseTableDataSize) 45 : mExpandableLookupTableBuffer(Ver4DictConstants::MAX_DICTIONARY_SIZE), 46 mExpandableAddressTableBuffer(Ver4DictConstants::MAX_DICTIONARY_SIZE), 47 mExpandableContentBuffer(Ver4DictConstants::MAX_DICTIONARY_SIZE), 48 mAddressLookupTable(&mExpandableLookupTableBuffer, &mExpandableAddressTableBuffer, 49 sparseTableBlockSize, sparseTableDataSize) {} 50 ~SparseTableDictContent()51 virtual ~SparseTableDictContent() {} 52 isNearSizeLimit()53 bool isNearSizeLimit() const { 54 return mExpandableLookupTableBuffer.isNearSizeLimit() 55 || mExpandableAddressTableBuffer.isNearSizeLimit() 56 || mExpandableContentBuffer.isNearSizeLimit(); 57 } 58 59 protected: getUpdatableAddressLookupTable()60 SparseTable *getUpdatableAddressLookupTable() { 61 return &mAddressLookupTable; 62 } 63 getAddressLookupTable()64 const SparseTable *getAddressLookupTable() const { 65 return &mAddressLookupTable; 66 } 67 getWritableContentBuffer()68 BufferWithExtendableBuffer *getWritableContentBuffer() { 69 return &mExpandableContentBuffer; 70 } 71 getContentBuffer()72 const BufferWithExtendableBuffer *getContentBuffer() const { 73 return &mExpandableContentBuffer; 74 } 75 76 bool flush(FILE *const file) const; 77 78 private: 79 DISALLOW_IMPLICIT_CONSTRUCTORS(SparseTableDictContent); 80 81 static const int LOOKUP_TABLE_BUFFER_INDEX; 82 static const int ADDRESS_TABLE_BUFFER_INDEX; 83 static const int CONTENT_BUFFER_INDEX; 84 85 BufferWithExtendableBuffer mExpandableLookupTableBuffer; 86 BufferWithExtendableBuffer mExpandableAddressTableBuffer; 87 BufferWithExtendableBuffer mExpandableContentBuffer; 88 SparseTable mAddressLookupTable; 89 }; 90 } // namespace latinime 91 #endif /* LATINIME_SPARSE_TABLE_DICT_CONTENT_H */ 92