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      1 /*
      2  * Copyright (C) 2015 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 package android.os;
     18 
     19 /**
     20  * CPU usage information per core.
     21  */
     22 public final class CpuUsageInfo implements Parcelable {
     23     private long mActive;
     24     private long mTotal;
     25 
     26     public static final Parcelable.Creator<CpuUsageInfo> CREATOR = new
     27             Parcelable.Creator<CpuUsageInfo>() {
     28                     public CpuUsageInfo createFromParcel(Parcel in) {
     29                         return new CpuUsageInfo(in);
     30                     }
     31 
     32                     public CpuUsageInfo[] newArray(int size) {
     33                         return new CpuUsageInfo[size];
     34                     }
     35                 };
     36 
     37     /** @hide */
     38     public CpuUsageInfo(long activeTime, long totalTime) {
     39         mActive = activeTime;
     40         mTotal = totalTime;
     41     }
     42 
     43     private CpuUsageInfo(Parcel in) {
     44         readFromParcel(in);
     45     }
     46 
     47     /**
     48      * Gets the active time in milliseconds since the system last booted.
     49      *
     50      * @return Active time in milliseconds.
     51      */
     52     public long getActive() {
     53         return mActive;
     54     }
     55 
     56     /**
     57      * Gets the total time in milliseconds that the CPU has been enabled since the system last
     58      * booted. This includes time the CPU spent idle.
     59      *
     60      * @return Total time in milliseconds.
     61      */
     62     public long getTotal() {
     63         return mTotal;
     64     }
     65 
     66     @Override
     67     public int describeContents() {
     68         return 0;
     69     }
     70 
     71     @Override
     72     public void writeToParcel(Parcel out, int flags) {
     73         out.writeLong(mActive);
     74         out.writeLong(mTotal);
     75     }
     76 
     77     private void readFromParcel(Parcel in) {
     78         mActive = in.readLong();
     79         mTotal = in.readLong();
     80     }
     81 }
     82