1 /* 2 * Copyright (C) 2021 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.systemui.util 18 19 import android.os.Trace 20 21 /** 22 * Run a block within a [Trace] section. 23 * Calls [Trace.beginSection] before and [Trace.endSection] after the passed block. 24 */ traceSectionnull25inline fun <T> traceSection(tag: String, block: () -> T): T = 26 if (Trace.isTagEnabled(Trace.TRACE_TAG_APP)) { 27 Trace.traceBegin(Trace.TRACE_TAG_APP, tag) 28 try { 29 block() 30 } finally { 31 Trace.traceEnd(Trace.TRACE_TAG_APP) 32 } 33 } else { 34 block() 35 } 36 37 class TraceUtils { 38 companion object { traceRunnablenull39 inline fun traceRunnable(tag: String, crossinline block: () -> Unit): Runnable { 40 return Runnable { traceSection(tag) { block() } } 41 } 42 } 43 } 44