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      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 package android.frameworks.displayservice@1.0;
     17 
     18 interface IEventCallback {
     19     /**
     20      * @param timestamp Nanoseconds since boot.
     21      * @param count Vsync count.
     22      */
     23     oneway onVsync(uint64_t timestamp, uint32_t count);
     24 
     25     /**
     26      * @param timestamp Nanoseconds since boot.
     27      * @param connected Current state of hotplug.
     28      */
     29     oneway onHotplug(uint64_t timestamp, bool connected);
     30 };
     31