1 /*
2  * Copyright (c) 2023 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #ifndef UDMF_STORE_CACHE_H
17 #define UDMF_STORE_CACHE_H
18 
19 #include <memory>
20 #include <mutex>
21 
22 #include "concurrent_map.h"
23 #include "executor_pool.h"
24 #include "store.h"
25 #include "unified_meta.h"
26 
27 namespace OHOS {
28 namespace UDMF {
29 class StoreCache {
30 public:
31     std::shared_ptr<Store> GetStore(std::string intention);
32     static StoreCache &GetInstance();
33     void SetThreadPool(std::shared_ptr<ExecutorPool> executors);
34 
35 private:
StoreCache()36     StoreCache() {}
37 
~StoreCache()38     ~StoreCache() {}
39 
40     StoreCache(const StoreCache &obj) = delete;
41     StoreCache &operator=(const StoreCache &obj) = delete;
42 
43     void GarbageCollect();
44 
45     ConcurrentMap<std::string, std::shared_ptr<Store>> stores_;
46     std::mutex taskMutex_;
47     ExecutorPool::TaskId taskId_ = ExecutorPool::INVALID_TASK_ID;
48 
49     static constexpr int64_t INTERVAL = 1;  // 1 min
50     std::shared_ptr<ExecutorPool> executorPool_;
51 };
52 } // namespace UDMF
53 } // namespace OHOS
54 #endif // UDMF_STORE_CACHE_H
55