1 /*
2  * Copyright (C) 2023 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.tools.traces.monitors
18 
19 import android.tools.Timestamps
20 import android.tools.traces.io.ResultWriter
21 
22 /**
23  * A monitor that doesn't actually collect any traces and instead get the resultSetter sets the
24  * trace file directly when called.
25  */
26 class NoTraceMonitor(private val resultSetter: (ResultWriter) -> Unit) : ITransitionMonitor {
startnull27     override fun start() {
28         // Does nothing
29     }
30 
stopnull31     override fun stop(writer: ResultWriter) {
32         writer.setTransitionStartTime(Timestamps.min())
33         writer.setTransitionEndTime(Timestamps.max())
34         this.resultSetter.invoke(writer)
35     }
36 }
37