1 /* 2 * Copyright (C) 2009 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 #include <assert.h> 18 #include "../include/lpicache.h" 19 20 namespace ime_pinyin { 21 22 LpiCache* LpiCache::instance_ = NULL; 23 24 LpiCache::LpiCache() { 25 lpi_cache_ = new LmaPsbItem[kFullSplIdStart * kMaxLpiCachePerId]; 26 lpi_cache_len_ = new uint16[kFullSplIdStart]; 27 assert(NULL != lpi_cache_); 28 assert(NULL != lpi_cache_len_); 29 for (uint16 id = 0; id < kFullSplIdStart; id++) 30 lpi_cache_len_[id] = 0; 31 } 32 33 LpiCache::~LpiCache() { 34 if (NULL != lpi_cache_) 35 delete [] lpi_cache_; 36 37 if (NULL != lpi_cache_len_) 38 delete [] lpi_cache_len_; 39 } 40 41 LpiCache& LpiCache::get_instance() { 42 if (NULL == instance_) { 43 instance_ = new LpiCache(); 44 assert(NULL != instance_); 45 } 46 return *instance_; 47 } 48 49 bool LpiCache::is_cached(uint16 splid) { 50 if (splid >= kFullSplIdStart) 51 return false; 52 return lpi_cache_len_[splid] != 0; 53 } 54 55 size_t LpiCache::put_cache(uint16 splid, LmaPsbItem lpi_items[], 56 size_t lpi_num) { 57 uint16 num = kMaxLpiCachePerId; 58 if (num > lpi_num) 59 num = static_cast<uint16>(lpi_num); 60 61 LmaPsbItem *lpi_cache_this = lpi_cache_ + splid * kMaxLpiCachePerId; 62 for (uint16 pos = 0; pos < num; pos++) 63 lpi_cache_this[pos] = lpi_items[pos]; 64 65 lpi_cache_len_[splid] = num; 66 return num; 67 } 68 69 size_t LpiCache::get_cache(uint16 splid, LmaPsbItem lpi_items[], 70 size_t lpi_max) { 71 if (lpi_max > lpi_cache_len_[splid]) 72 lpi_max = lpi_cache_len_[splid]; 73 74 LmaPsbItem *lpi_cache_this = lpi_cache_ + splid * kMaxLpiCachePerId; 75 for (uint16 pos = 0; pos < lpi_max; pos++) { 76 lpi_items[pos] = lpi_cache_this[pos]; 77 } 78 return lpi_max; 79 } 80 81 } // namespace ime_pinyin 82
