1/* 2 * Copyright (C) 2014 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 17package android.app; 18 19import android.os.Parcel; 20import android.os.ParcelFileDescriptor; 21import android.os.Parcelable; 22import android.util.Slog; 23 24import java.io.IOException; 25 26/** 27 * System private API for passing profiler settings. 28 * 29 * {@hide} 30 */ 31public class ProfilerInfo implements Parcelable { 32 33 private static final String TAG = "ProfilerInfo"; 34 35 /* Name of profile output file. */ 36 public final String profileFile; 37 38 /* File descriptor for profile output file, can be null. */ 39 public ParcelFileDescriptor profileFd; 40 41 /* Indicates sample profiling when nonzero, interval in microseconds. */ 42 public final int samplingInterval; 43 44 /* Automatically stop the profiler when the app goes idle. */ 45 public final boolean autoStopProfiler; 46 47 /* 48 * Indicates whether to stream the profiling info to the out file continuously. 49 */ 50 public final boolean streamingOutput; 51 52 /** 53 * Denotes an agent (and its parameters) to attach for profiling. 54 */ 55 public final String agent; 56 57 public ProfilerInfo(String filename, ParcelFileDescriptor fd, int interval, boolean autoStop, 58 boolean streaming, String agent) { 59 profileFile = filename; 60 profileFd = fd; 61 samplingInterval = interval; 62 autoStopProfiler = autoStop; 63 streamingOutput = streaming; 64 this.agent = agent; 65 } 66 67 public ProfilerInfo(ProfilerInfo in) { 68 profileFile = in.profileFile; 69 profileFd = in.profileFd; 70 samplingInterval = in.samplingInterval; 71 autoStopProfiler = in.autoStopProfiler; 72 streamingOutput = in.streamingOutput; 73 agent = in.agent; 74 } 75 76 /** 77 * Close profileFd, if it is open. The field will be null after a call to this function. 78 */ 79 public void closeFd() { 80 if (profileFd != null) { 81 try { 82 profileFd.close(); 83 } catch (IOException e) { 84 Slog.w(TAG, "Failure closing profile fd", e); 85 } 86 profileFd = null; 87 } 88 } 89 90 @Override 91 public int describeContents() { 92 if (profileFd != null) { 93 return profileFd.describeContents(); 94 } else { 95 return 0; 96 } 97 } 98 99 @Override 100 public void writeToParcel(Parcel out, int flags) { 101 out.writeString(profileFile); 102 if (profileFd != null) { 103 out.writeInt(1); 104 profileFd.writeToParcel(out, flags); 105 } else { 106 out.writeInt(0); 107 } 108 out.writeInt(samplingInterval); 109 out.writeInt(autoStopProfiler ? 1 : 0); 110 out.writeInt(streamingOutput ? 1 : 0); 111 out.writeString(agent); 112 } 113 114 public static final Parcelable.Creator<ProfilerInfo> CREATOR = 115 new Parcelable.Creator<ProfilerInfo>() { 116 @Override 117 public ProfilerInfo createFromParcel(Parcel in) { 118 return new ProfilerInfo(in); 119 } 120 121 @Override 122 public ProfilerInfo[] newArray(int size) { 123 return new ProfilerInfo[size]; 124 } 125 }; 126 127 private ProfilerInfo(Parcel in) { 128 profileFile = in.readString(); 129 profileFd = in.readInt() != 0 ? ParcelFileDescriptor.CREATOR.createFromParcel(in) : null; 130 samplingInterval = in.readInt(); 131 autoStopProfiler = in.readInt() != 0; 132 streamingOutput = in.readInt() != 0; 133 agent = in.readString(); 134 } 135} 136