| /* |
| * Copyright (C) 2017 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 android.net.metrics; |
| |
| import android.net.MacAddress; |
| import android.os.Process; |
| import android.os.SystemClock; |
| import android.util.SparseIntArray; |
| |
| import java.util.StringJoiner; |
| |
| /** |
| * An event logged per interface and that aggregates WakeupEvents for that interface. |
| * {@hide} |
| */ |
| public class WakeupStats { |
| |
| private static final int NO_UID = -1; |
| |
| public final long creationTimeMs = SystemClock.elapsedRealtime(); |
| public final String iface; |
| |
| public long totalWakeups = 0; |
| public long rootWakeups = 0; |
| public long systemWakeups = 0; |
| public long nonApplicationWakeups = 0; |
| public long applicationWakeups = 0; |
| public long noUidWakeups = 0; |
| public long durationSec = 0; |
| |
| public long l2UnicastCount = 0; |
| public long l2MulticastCount = 0; |
| public long l2BroadcastCount = 0; |
| |
| public final SparseIntArray ethertypes = new SparseIntArray(); |
| public final SparseIntArray ipNextHeaders = new SparseIntArray(); |
| |
| public WakeupStats(String iface) { |
| this.iface = iface; |
| } |
| |
| /** Update durationSec with current time. */ |
| public void updateDuration() { |
| durationSec = (SystemClock.elapsedRealtime() - creationTimeMs) / 1000; |
| } |
| |
| /** Update wakeup counters for the given WakeupEvent. */ |
| public void countEvent(WakeupEvent ev) { |
| totalWakeups++; |
| switch (ev.uid) { |
| case Process.ROOT_UID: |
| rootWakeups++; |
| break; |
| case Process.SYSTEM_UID: |
| systemWakeups++; |
| break; |
| case NO_UID: |
| noUidWakeups++; |
| break; |
| default: |
| if (ev.uid >= Process.FIRST_APPLICATION_UID) { |
| applicationWakeups++; |
| } else { |
| nonApplicationWakeups++; |
| } |
| break; |
| } |
| |
| switch (MacAddress.macAddressType(ev.dstHwAddr)) { |
| case UNICAST: |
| l2UnicastCount++; |
| break; |
| case MULTICAST: |
| l2MulticastCount++; |
| break; |
| case BROADCAST: |
| l2BroadcastCount++; |
| break; |
| default: |
| break; |
| } |
| |
| increment(ethertypes, ev.ethertype); |
| if (ev.ipNextHeader >= 0) { |
| increment(ipNextHeaders, ev.ipNextHeader); |
| } |
| } |
| |
| @Override |
| public String toString() { |
| updateDuration(); |
| StringJoiner j = new StringJoiner(", ", "WakeupStats(", ")"); |
| j.add(iface); |
| j.add("" + durationSec + "s"); |
| j.add("total: " + totalWakeups); |
| j.add("root: " + rootWakeups); |
| j.add("system: " + systemWakeups); |
| j.add("apps: " + applicationWakeups); |
| j.add("non-apps: " + nonApplicationWakeups); |
| j.add("no uid: " + noUidWakeups); |
| j.add(String.format("l2 unicast/multicast/broadcast: %d/%d/%d", |
| l2UnicastCount, l2MulticastCount, l2BroadcastCount)); |
| for (int i = 0; i < ethertypes.size(); i++) { |
| int eth = ethertypes.keyAt(i); |
| int count = ethertypes.valueAt(i); |
| j.add(String.format("ethertype 0x%x: %d", eth, count)); |
| } |
| for (int i = 0; i < ipNextHeaders.size(); i++) { |
| int proto = ipNextHeaders.keyAt(i); |
| int count = ipNextHeaders.valueAt(i); |
| j.add(String.format("ipNxtHdr %d: %d", proto, count)); |
| } |
| return j.toString(); |
| } |
| |
| private static void increment(SparseIntArray counters, int key) { |
| int newcount = counters.get(key, 0) + 1; |
| counters.put(key, newcount); |
| } |
| } |