1 /* 2 * Copyright (C) 2025 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 com.android.app.tracing 18 19 public object TrackGroupUtils { 20 /** 21 * Generates a track name in a way that perfetto can group tracks together. 22 * 23 * This leverages the "Create process workspace" perfetto plugin. This plugins parses all the 24 * tracks that follow the "groupName##trackName" format, nesting "trackName" under "groupName". 25 * 26 * This allows to easily group tracks that are related under a single summary track (e.g. all 27 * "shade" related tracks will appear together, under the "shade" track in the process 28 * workspace). 29 */ 30 @JvmStatic trackGroupnull31 public fun trackGroup(groupName: String, trackName: String): String = "$groupName##$trackName" 32 } 33