1 /* 2 * Copyright (C) 2021 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 PLUGIN_INFO_LOCK_H 17 #define PLUGIN_INFO_LOCK_H 18 19 #include "nocopyable.h" 20 #include "rwlock.h" 21 #include "singleton.h" 22 23 namespace OHOS { 24 namespace MultimediaPlugin { 25 class PluginInfoLock final : public NoCopyable { 26 public: 27 // Use the read-write lock to mutually exclusive write plugin information and read plugin information operations, 28 // where Register() plays the write role, CreateObject() and GetClassInfo() play the read role. 29 OHOS::Utils::RWLock rwLock_; 30 DECLARE_DELAYED_REF_SINGLETON(PluginInfoLock); 31 }; 32 } // namespace MultimediaPlugin 33 } // namespace OHOS 34 35 #endif // PLUGIN_INFO_LOCK_H 36