80 lines
2.2 KiB
C++
80 lines
2.2 KiB
C++
/*
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* Copyright (C) 2009 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 <assert.h>
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#include "../include/lpicache.h"
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namespace ime_pinyin {
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LpiCache* LpiCache::instance_ = NULL;
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LpiCache::LpiCache() {
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lpi_cache_ = new LmaPsbItem[kFullSplIdStart * kMaxLpiCachePerId];
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lpi_cache_len_ = new uint16[kFullSplIdStart];
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assert(NULL != lpi_cache_);
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assert(NULL != lpi_cache_len_);
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for (uint16 id = 0; id < kFullSplIdStart; id++) lpi_cache_len_[id] = 0;
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}
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LpiCache::~LpiCache() {
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if (NULL != lpi_cache_) delete[] lpi_cache_;
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if (NULL != lpi_cache_len_) delete[] lpi_cache_len_;
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}
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void LpiCache::free_instance() {
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if (instance_ != NULL) {
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delete instance_;
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instance_ = NULL;
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}
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}
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LpiCache& LpiCache::get_instance() {
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if (NULL == instance_) {
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instance_ = new LpiCache();
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assert(NULL != instance_);
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}
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return *instance_;
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}
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bool LpiCache::is_cached(uint16 splid) {
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if (splid >= kFullSplIdStart) return false;
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return lpi_cache_len_[splid] != 0;
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}
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unsigned LpiCache::put_cache(uint16 splid, LmaPsbItem lpi_items[], unsigned lpi_num) {
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uint16 num = kMaxLpiCachePerId;
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if (num > lpi_num) num = static_cast<uint16>(lpi_num);
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LmaPsbItem* lpi_cache_this = lpi_cache_ + splid * kMaxLpiCachePerId;
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for (uint16 pos = 0; pos < num; pos++) lpi_cache_this[pos] = lpi_items[pos];
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lpi_cache_len_[splid] = num;
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return num;
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}
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unsigned LpiCache::get_cache(uint16 splid, LmaPsbItem lpi_items[], unsigned lpi_max) {
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if (lpi_max > lpi_cache_len_[splid]) lpi_max = lpi_cache_len_[splid];
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LmaPsbItem* lpi_cache_this = lpi_cache_ + splid * kMaxLpiCachePerId;
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for (uint16 pos = 0; pos < lpi_max; pos++) {
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lpi_items[pos] = lpi_cache_this[pos];
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}
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return lpi_max;
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}
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} // namespace ime_pinyin
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