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 #include <vector>
     22 
     23 #include <boot_action/boot_action.h>  // libandroidthings native API.
     24 #include <utils/RefBase.h>
     25 
     26 namespace android {
     27 
     28 class BootAction : public RefBase {
     29 public:
     30     ~BootAction();
     31 
     32     // libraryPath is a fully qualified path to the target .so library.
     33     bool init(const std::string& libraryPath,
     34               const std::vector<ABootActionParameter>& parameters);
     35 
     36     // The animation is going to start playing partNumber for the playCount'th
     37     // time, update the action as needed.
     38     // This is run in the same thread as the boot animation,
     39     // you must not block here.
     40     void startPart(int partNumber, int playCount);
     41 
     42     // Shutdown the boot action, this will be called shortly before the
     43     // process is shut down to allow time for cleanup.
     44     void shutdown();
     45 
     46 private:
     47     typedef bool (*libInit)(const ABootActionParameter* parameters,
     48                             size_t num_parameters);
     49     typedef void (*libStartPart)(int partNumber, int playNumber);
     50     typedef void (*libShutdown)();
     51 
     52     bool loadSymbol(const char* symbol, void** loaded);
     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