Home | History | Annotate | Download | only in iot
      1 /*
      2  * Copyright (C) 2017 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 #ifndef _BOOTANIMATION_BOOTACTION_H
     18 #define _BOOTANIMATION_BOOTACTION_H
     19 
     20 #include <string>
     21 
     22 #include <utils/RefBase.h>
     23 
     24 namespace android {
     25 
     26 class BootAction : public RefBase {
     27 public:
     28     ~BootAction();
     29     // Parse the contents of the config file. We expect one line:
     30     // LIBRARY_NAME=
     31     //
     32     // LIBRARY_NAME is the name of the shared library that contains the boot action.
     33     bool init(const std::string& libraryPath, const std::string& config);
     34 
     35     // The animation is going to start playing partNumber for the playCount'th
     36     // time, update the action as needed.
     37     // This is run in the same thread as the boot animation,
     38     // you must not block here.
     39     void startPart(int partNumber, int playCount);
     40 
     41     // Shutdown the boot action, this will be called shortly before the
     42     // process is shut down to allow time for cleanup.
     43     void shutdown();
     44 
     45 private:
     46     typedef bool (*libInit)();
     47     typedef void (*libStartPart)(int partNumber, int playNumber);
     48     typedef void (*libShutdown)();
     49 
     50     bool parseConfig(const std::string& config, std::string* path);
     51     bool loadSymbol(const char* symbol, void** loaded);
     52     const char* architectureDirectory();
     53 
     54     void* mLibHandle = nullptr;
     55     libInit mLibInit = nullptr;
     56     libStartPart mLibStartPart = nullptr;
     57     libShutdown mLibShutdown = nullptr;
     58 };
     59 
     60 }  // namespace android
     61 
     62 
     63 #endif  // _BOOTANIMATION_BOOTACTION_H
     64