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/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.app;
import android.os.Parcel;
import android.os.ParcelFileDescriptor;
import android.os.Parcelable;
import android.util.Slog;
import android.util.proto.ProtoOutputStream;
import java.io.IOException;
import java.util.Objects;
/**
* System private API for passing profiler settings.
*
* {@hide}
*/
public class ProfilerInfo implements Parcelable {
private static final String TAG = "ProfilerInfo";
/* Name of profile output file. */
public final String profileFile;
/* File descriptor for profile output file, can be null. */
public ParcelFileDescriptor profileFd;
/* Indicates sample profiling when nonzero, interval in microseconds. */
public final int samplingInterval;
/* Automatically stop the profiler when the app goes idle. */
public final boolean autoStopProfiler;
/*
* Indicates whether to stream the profiling info to the out file continuously.
*/
public final boolean streamingOutput;
/**
* Denotes an agent (and its parameters) to attach for profiling.
*/
public final String agent;
/**
* Whether the {@link agent} should be attached early (before bind-application) or during
* bind-application. Agents attached prior to binding cannot be loaded from the app's APK
* directly and must be given as an absolute path (or available in the default LD_LIBRARY_PATH).
* Agents attached during bind-application will miss early setup (e.g., resource initialization
* and classloader generation), but are searched in the app's library search path.
*/
public final boolean attachAgentDuringBind;
public ProfilerInfo(String filename, ParcelFileDescriptor fd, int interval, boolean autoStop,
boolean streaming, String agent, boolean attachAgentDuringBind) {
profileFile = filename;
profileFd = fd;
samplingInterval = interval;
autoStopProfiler = autoStop;
streamingOutput = streaming;
this.agent = agent;
this.attachAgentDuringBind = attachAgentDuringBind;
}
public ProfilerInfo(ProfilerInfo in) {
profileFile = in.profileFile;
profileFd = in.profileFd;
samplingInterval = in.samplingInterval;
autoStopProfiler = in.autoStopProfiler;
streamingOutput = in.streamingOutput;
agent = in.agent;
attachAgentDuringBind = in.attachAgentDuringBind;
}
/**
* Return a new ProfilerInfo instance, with fields populated from this object,
* and {@link agent} and {@link attachAgentDuringBind} as given.
*/
public ProfilerInfo setAgent(String agent, boolean attachAgentDuringBind) {
return new ProfilerInfo(this.profileFile, this.profileFd, this.samplingInterval,
this.autoStopProfiler, this.streamingOutput, agent, attachAgentDuringBind);
}
/**
* Close profileFd, if it is open. The field will be null after a call to this function.
*/
public void closeFd() {
if (profileFd != null) {
try {
profileFd.close();
} catch (IOException e) {
Slog.w(TAG, "Failure closing profile fd", e);
}
profileFd = null;
}
}
@Override
public int describeContents() {
if (profileFd != null) {
return profileFd.describeContents();
} else {
return 0;
}
}
@Override
public void writeToParcel(Parcel out, int flags) {
out.writeString(profileFile);
if (profileFd != null) {
out.writeInt(1);
profileFd.writeToParcel(out, flags);
} else {
out.writeInt(0);
}
out.writeInt(samplingInterval);
out.writeInt(autoStopProfiler ? 1 : 0);
out.writeInt(streamingOutput ? 1 : 0);
out.writeString(agent);
out.writeBoolean(attachAgentDuringBind);
}
/** @hide */
public void writeToProto(ProtoOutputStream proto, long fieldId) {
final long token = proto.start(fieldId);
proto.write(ProfilerInfoProto.PROFILE_FILE, profileFile);
if (profileFd != null) {
proto.write(ProfilerInfoProto.PROFILE_FD, profileFd.getFd());
}
proto.write(ProfilerInfoProto.SAMPLING_INTERVAL, samplingInterval);
proto.write(ProfilerInfoProto.AUTO_STOP_PROFILER, autoStopProfiler);
proto.write(ProfilerInfoProto.STREAMING_OUTPUT, streamingOutput);
proto.write(ProfilerInfoProto.AGENT, agent);
proto.end(token);
}
public static final @android.annotation.NonNull Parcelable.Creator<ProfilerInfo> CREATOR =
new Parcelable.Creator<ProfilerInfo>() {
@Override
public ProfilerInfo createFromParcel(Parcel in) {
return new ProfilerInfo(in);
}
@Override
public ProfilerInfo[] newArray(int size) {
return new ProfilerInfo[size];
}
};
private ProfilerInfo(Parcel in) {
profileFile = in.readString();
profileFd = in.readInt() != 0 ? ParcelFileDescriptor.CREATOR.createFromParcel(in) : null;
samplingInterval = in.readInt();
autoStopProfiler = in.readInt() != 0;
streamingOutput = in.readInt() != 0;
agent = in.readString();
attachAgentDuringBind = in.readBoolean();
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
final ProfilerInfo other = (ProfilerInfo) o;
// TODO: Also check #profileFd for equality.
return Objects.equals(profileFile, other.profileFile)
&& autoStopProfiler == other.autoStopProfiler
&& samplingInterval == other.samplingInterval
&& streamingOutput == other.streamingOutput
&& Objects.equals(agent, other.agent);
}
@Override
public int hashCode() {
int result = 17;
result = 31 * result + Objects.hashCode(profileFile);
result = 31 * result + samplingInterval;
result = 31 * result + (autoStopProfiler ? 1 : 0);
result = 31 * result + (streamingOutput ? 1 : 0);
result = 31 * result + Objects.hashCode(agent);
return result;
}
}
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