benchmark/common/src/main/java/androidx/benchmark/MemInfo.kt

/*
 * Copyright 2019 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

import java.io.File

internal object MemInfo {
    val memTotalBytes: Long

    init {
        val memInfo = File("/proc/meminfo")
        val memTotalLine = memInfo.readLines().firstOrNull { it.matches(Regex("MemTotal:.*")) }
        memTotalBytes = memTotalLine?.split(Regex("\\s+"))?.get(1)?.toLong()?.times(1024) ?: -1
    }
}