| /* |
| * 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. |
| */ |
| |
| #include "suggest/policyimpl/dictionary/structure/v4/ver4_dict_constants.h" |
| |
| namespace latinime { |
| |
| const char *const Ver4DictConstants::BODY_FILE_EXTENSION = ".body"; |
| const char *const Ver4DictConstants::HEADER_FILE_EXTENSION = ".header"; |
| |
| // Version 4 dictionary size is implicitly limited to 8MB due to 3-byte offsets. |
| const int Ver4DictConstants::MAX_DICTIONARY_SIZE = 8 * 1024 * 1024; |
| // Extended region size, which is not GCed region size in dict file + additional buffer size, is |
| // limited to 1MB to prevent from inefficient traversing. |
| const int Ver4DictConstants::MAX_DICT_EXTENDED_REGION_SIZE = 1 * 1024 * 1024; |
| |
| // NUM_OF_BUFFERS_FOR_SINGLE_DICT_CONTENT for Trie and TerminalAddressLookupTable. |
| // NUM_OF_BUFFERS_FOR_LANGUAGE_MODEL_DICT_CONTENT for language model. |
| // NUM_OF_BUFFERS_FOR_SPARSE_TABLE_DICT_CONTENT for bigram and shortcut. |
| const size_t Ver4DictConstants::NUM_OF_CONTENT_BUFFERS_IN_BODY_FILE = |
| NUM_OF_BUFFERS_FOR_SINGLE_DICT_CONTENT * 2 |
| + NUM_OF_BUFFERS_FOR_LANGUAGE_MODEL_DICT_CONTENT |
| + NUM_OF_BUFFERS_FOR_SPARSE_TABLE_DICT_CONTENT * 2; |
| const int Ver4DictConstants::TRIE_BUFFER_INDEX = 0; |
| const int Ver4DictConstants::TERMINAL_ADDRESS_LOOKUP_TABLE_BUFFER_INDEX = |
| TRIE_BUFFER_INDEX + NUM_OF_BUFFERS_FOR_SINGLE_DICT_CONTENT; |
| const int Ver4DictConstants::LANGUAGE_MODEL_BUFFER_INDEX = |
| TERMINAL_ADDRESS_LOOKUP_TABLE_BUFFER_INDEX + NUM_OF_BUFFERS_FOR_SINGLE_DICT_CONTENT; |
| const int Ver4DictConstants::BIGRAM_BUFFERS_INDEX = |
| LANGUAGE_MODEL_BUFFER_INDEX + NUM_OF_BUFFERS_FOR_LANGUAGE_MODEL_DICT_CONTENT; |
| const int Ver4DictConstants::SHORTCUT_BUFFERS_INDEX = |
| BIGRAM_BUFFERS_INDEX + NUM_OF_BUFFERS_FOR_SPARSE_TABLE_DICT_CONTENT; |
| |
| const int Ver4DictConstants::NOT_A_TERMINAL_ID = -1; |
| const int Ver4DictConstants::PROBABILITY_SIZE = 1; |
| const int Ver4DictConstants::FLAGS_IN_PROBABILITY_FILE_SIZE = 1; |
| const int Ver4DictConstants::TERMINAL_ADDRESS_TABLE_ADDRESS_SIZE = 3; |
| const int Ver4DictConstants::NOT_A_TERMINAL_ADDRESS = 0; |
| const int Ver4DictConstants::TERMINAL_ID_FIELD_SIZE = 4; |
| const int Ver4DictConstants::TIME_STAMP_FIELD_SIZE = 4; |
| const int Ver4DictConstants::WORD_LEVEL_FIELD_SIZE = 1; |
| const int Ver4DictConstants::WORD_COUNT_FIELD_SIZE = 1; |
| |
| const int Ver4DictConstants::BIGRAM_ADDRESS_TABLE_BLOCK_SIZE = 16; |
| const int Ver4DictConstants::BIGRAM_ADDRESS_TABLE_DATA_SIZE = 4; |
| const int Ver4DictConstants::SHORTCUT_ADDRESS_TABLE_BLOCK_SIZE = 64; |
| const int Ver4DictConstants::SHORTCUT_ADDRESS_TABLE_DATA_SIZE = 4; |
| |
| const int Ver4DictConstants::BIGRAM_TARGET_TERMINAL_ID_FIELD_SIZE = 3; |
| // Unsigned int max value of BIGRAM_TARGET_TERMINAL_ID_FIELD_SIZE-byte is used for representing |
| // invalid terminal ID in bigram lists. |
| const int Ver4DictConstants::INVALID_BIGRAM_TARGET_TERMINAL_ID = |
| (1 << (BIGRAM_TARGET_TERMINAL_ID_FIELD_SIZE * 8)) - 1; |
| const int Ver4DictConstants::BIGRAM_FLAGS_FIELD_SIZE = 1; |
| const int Ver4DictConstants::BIGRAM_PROBABILITY_MASK = 0x0F; |
| const int Ver4DictConstants::BIGRAM_IS_LINK_MASK = 0x80; |
| const int Ver4DictConstants::BIGRAM_LARGE_PROBABILITY_FIELD_SIZE = 1; |
| |
| const int Ver4DictConstants::SHORTCUT_FLAGS_FIELD_SIZE = 1; |
| const int Ver4DictConstants::SHORTCUT_PROBABILITY_MASK = 0x0F; |
| const int Ver4DictConstants::SHORTCUT_HAS_NEXT_MASK = 0x80; |
| |
| const size_t Ver4DictConstants::NUM_OF_BUFFERS_FOR_SINGLE_DICT_CONTENT = 1; |
| const size_t Ver4DictConstants::NUM_OF_BUFFERS_FOR_SPARSE_TABLE_DICT_CONTENT = 3; |
| const size_t Ver4DictConstants::NUM_OF_BUFFERS_FOR_LANGUAGE_MODEL_DICT_CONTENT = 1; |
| |
| } // namespace latinime |