73 lines
3.5 KiB
C++
73 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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#include "dictionary/structure/v4/ver4_dict_constants.h"
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namespace latinime {
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const char *const Ver4DictConstants::BODY_FILE_EXTENSION = ".body";
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const char *const Ver4DictConstants::HEADER_FILE_EXTENSION = ".header";
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// Version 4 dictionary size is implicitly limited to 8MB due to 3-byte offsets.
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const int Ver4DictConstants::MAX_DICTIONARY_SIZE = 8 * 1024 * 1024;
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// Extended region size, which is not GCed region size in dict file + additional buffer size, is
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// limited to 1MB to prevent from inefficient traversing.
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const int Ver4DictConstants::MAX_DICT_EXTENDED_REGION_SIZE = 1 * 1024 * 1024;
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// NUM_OF_BUFFERS_FOR_SINGLE_DICT_CONTENT for Trie and TerminalAddressLookupTable.
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// NUM_OF_BUFFERS_FOR_LANGUAGE_MODEL_DICT_CONTENT for language model.
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// NUM_OF_BUFFERS_FOR_SPARSE_TABLE_DICT_CONTENT for shortcut.
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const size_t Ver4DictConstants::NUM_OF_CONTENT_BUFFERS_IN_BODY_FILE =
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NUM_OF_BUFFERS_FOR_SINGLE_DICT_CONTENT * 2
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+ NUM_OF_BUFFERS_FOR_LANGUAGE_MODEL_DICT_CONTENT
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+ NUM_OF_BUFFERS_FOR_SPARSE_TABLE_DICT_CONTENT;
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const int Ver4DictConstants::TRIE_BUFFER_INDEX = 0;
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const int Ver4DictConstants::TERMINAL_ADDRESS_LOOKUP_TABLE_BUFFER_INDEX =
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TRIE_BUFFER_INDEX + NUM_OF_BUFFERS_FOR_SINGLE_DICT_CONTENT;
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const int Ver4DictConstants::LANGUAGE_MODEL_BUFFER_INDEX =
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TERMINAL_ADDRESS_LOOKUP_TABLE_BUFFER_INDEX + NUM_OF_BUFFERS_FOR_SINGLE_DICT_CONTENT;
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const int Ver4DictConstants::SHORTCUT_BUFFERS_INDEX =
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LANGUAGE_MODEL_BUFFER_INDEX + NUM_OF_BUFFERS_FOR_LANGUAGE_MODEL_DICT_CONTENT;
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const int Ver4DictConstants::NOT_A_TERMINAL_ID = -1;
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const int Ver4DictConstants::PROBABILITY_SIZE = 1;
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const int Ver4DictConstants::FLAGS_IN_LANGUAGE_MODEL_SIZE = 1;
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const int Ver4DictConstants::TERMINAL_ADDRESS_TABLE_ADDRESS_SIZE = 3;
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const int Ver4DictConstants::NOT_A_TERMINAL_ADDRESS = 0;
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const int Ver4DictConstants::TERMINAL_ID_FIELD_SIZE = 4;
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const int Ver4DictConstants::TIME_STAMP_FIELD_SIZE = 4;
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const int Ver4DictConstants::WORD_LEVEL_FIELD_SIZE = 0;
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const int Ver4DictConstants::WORD_COUNT_FIELD_SIZE = 2;
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const uint8_t Ver4DictConstants::FLAG_REPRESENTS_BEGINNING_OF_SENTENCE = 0x1;
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const uint8_t Ver4DictConstants::FLAG_NOT_A_VALID_ENTRY = 0x2;
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const uint8_t Ver4DictConstants::FLAG_NOT_A_WORD = 0x4;
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const uint8_t Ver4DictConstants::FLAG_BLACKLISTED = 0x8;
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const uint8_t Ver4DictConstants::FLAG_POSSIBLY_OFFENSIVE = 0x10;
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const int Ver4DictConstants::SHORTCUT_ADDRESS_TABLE_BLOCK_SIZE = 64;
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const int Ver4DictConstants::SHORTCUT_ADDRESS_TABLE_DATA_SIZE = 4;
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const int Ver4DictConstants::SHORTCUT_FLAGS_FIELD_SIZE = 1;
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const int Ver4DictConstants::SHORTCUT_PROBABILITY_MASK = 0x0F;
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const int Ver4DictConstants::SHORTCUT_HAS_NEXT_MASK = 0x80;
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const size_t Ver4DictConstants::NUM_OF_BUFFERS_FOR_SINGLE_DICT_CONTENT = 1;
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const size_t Ver4DictConstants::NUM_OF_BUFFERS_FOR_SPARSE_TABLE_DICT_CONTENT = 3;
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const size_t Ver4DictConstants::NUM_OF_BUFFERS_FOR_LANGUAGE_MODEL_DICT_CONTENT = 2;
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} // namespace latinime
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