Slice.kt
/*
* Copyright 2021 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 androidx.benchmark.macro.perfetto
internal data class Slice(
val name: String,
val ts: Long,
val dur: Long
) {
val endTs: Long = ts + dur
val frameId = name.substringAfterLast(" ").toIntOrNull()
fun contains(targetTs: Long): Boolean {
return targetTs >= ts && targetTs <= (ts + dur)
}
companion object {
private fun String.unquote(): String {
require(this.first() == '"' && this.last() == '"')
return this.substring(1, length - 1)
}
fun parseListFromQueryResult(queryResult: String): List<Slice> {
val resultLines = queryResult.split("\n").onEach {
println("query result line $it")
}
if (resultLines.first() != "\"name\",\"ts\",\"dur\"") {
throw IllegalStateException("query failed!")
}
// results are in CSV with a header row, and strings wrapped with quotes
return resultLines
.filter { it.isNotBlank() } // drop blank lines
.drop(1) // drop the header row
.map {
val columns = it.split(",")
Slice(
name = columns[0].unquote(),
ts = columns[1].toLong(),
dur = columns[2].toLong()
)
}
}
}
}