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 "BootParameters.h"
     24 
     25 #include <boot_action/boot_action.h>  // libandroidthings native API.
     26 #include <utils/RefBase.h>
     27 
     28 namespace android {
     29 
     30 class BootAction : public RefBase {
     31 public:
     32     ~BootAction();
     33 
     34     // libraryPath is a fully qualified path to the target .so library.
     35     bool init(const std::string& libraryPath,
     36               const std::unique_ptr<BootParameters>& bootParameters);
     37 
     38     // The animation is going to start playing partNumber for the playCount'th
     39     // time, update the action as needed.
     40     // This is run in the same thread as the boot animation,
     41     // you must not block here.
     42     void startPart(int partNumber, int playCount);
     43 
     44     // Shutdown the boot action, this will be called shortly before the
     45     // process is shut down to allow time for cleanup.
     46     void shutdown();
     47 
     48 private:
     49     typedef bool (*libInit)(const ABootActionParameter* parameters,
     50                             size_t numParameters);
     51     typedef void (*libStartPart)(int partNumber, int playNumber);
     52     typedef void (*libShutdown)();
     53 
     54     bool loadSymbol(const char* symbol, void** loaded);
     55 
     56     void* mLibHandle = nullptr;
     57     libInit mLibInit = nullptr;
     58     libStartPart mLibStartPart = nullptr;
     59     libShutdown mLibShutdown = nullptr;
     60 
     61     // Called only if the boot is silent.
     62     libInit mLibSilentBoot = nullptr;
     63 };
     64 
     65 }  // namespace android
     66 
     67 
     68 #endif  // _BOOTANIMATION_BOOTACTION_H
     69