175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey/* 275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * Copyright (C) 2011 The Android Open Source Project 375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * 475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * Licensed under the Apache License, Version 2.0 (the "License"); 575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * you may not use this file except in compliance with the License. 675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * You may obtain a copy of the License at 775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * 875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * http://www.apache.org/licenses/LICENSE-2.0 975279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * 1075279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * Unless required by applicable law or agreed to in writing, software 1175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * distributed under the License is distributed on an "AS IS" BASIS, 1275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * See the License for the specific language governing permissions and 1475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * limitations under the License. 1575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey */ 1675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 1775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkeypackage android.net; 1875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 19a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkeyimport static android.net.NetworkStats.IFACE_ALL; 20b5d55e302d2253e4bfb233ea705caf258cdc4cb9Jeff Sharkeyimport static android.net.NetworkStats.SET_DEFAULT; 21a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkeyimport static android.net.NetworkStats.TAG_NONE; 22a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkeyimport static android.net.NetworkStats.UID_ALL; 2363d27a9233fed934340231f438493746084a681dJeff Sharkeyimport static android.net.NetworkStatsHistory.DataStreamUtils.readFullLongArray; 2463d27a9233fed934340231f438493746084a681dJeff Sharkeyimport static android.net.NetworkStatsHistory.DataStreamUtils.readVarLongArray; 2563d27a9233fed934340231f438493746084a681dJeff Sharkeyimport static android.net.NetworkStatsHistory.DataStreamUtils.writeVarLongArray; 2663d27a9233fed934340231f438493746084a681dJeff Sharkeyimport static android.net.NetworkStatsHistory.Entry.UNKNOWN; 27a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkeyimport static android.net.NetworkStatsHistory.ParcelUtils.readLongArray; 28a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkeyimport static android.net.NetworkStatsHistory.ParcelUtils.writeLongArray; 2963abc37356728c0575d6a62a203102ae6d97953bJeff Sharkeyimport static com.android.internal.util.ArrayUtils.total; 30a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey 3175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkeyimport android.os.Parcel; 3275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkeyimport android.os.Parcelable; 3369b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkeyimport android.util.MathUtils; 3475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 3563abc37356728c0575d6a62a203102ae6d97953bJeff Sharkeyimport com.android.internal.util.IndentingPrintWriter; 3663abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey 3775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkeyimport java.io.CharArrayWriter; 3875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkeyimport java.io.DataInputStream; 3975279904202357565cf5a1cb11148d01f42b4569Jeff Sharkeyimport java.io.DataOutputStream; 4075279904202357565cf5a1cb11148d01f42b4569Jeff Sharkeyimport java.io.IOException; 4161ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkeyimport java.net.ProtocolException; 4275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkeyimport java.util.Arrays; 4361ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkeyimport java.util.Random; 4475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 4575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey/** 4675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * Collection of historical network statistics, recorded into equally-sized 4775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * "buckets" in time. Internally it stores data in {@code long} series for more 4875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * efficient persistence. 4975279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * <p> 5075279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * Each bucket is defined by a {@link #bucketStart} timestamp, and lasts for 5175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * {@link #bucketDuration}. Internally assumes that {@link #bucketStart} is 5275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * sorted at all times. 5375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * 5475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * @hide 5575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey */ 5675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkeypublic class NetworkStatsHistory implements Parcelable { 571b5a2a96f793211bfbd39aa29cc41031dfa23950Jeff Sharkey private static final int VERSION_INIT = 1; 5863d27a9233fed934340231f438493746084a681dJeff Sharkey private static final int VERSION_ADD_PACKETS = 2; 59558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey private static final int VERSION_ADD_ACTIVE = 3; 6075279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 61558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey public static final int FIELD_ACTIVE_TIME = 0x01; 62558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey public static final int FIELD_RX_BYTES = 0x02; 63558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey public static final int FIELD_RX_PACKETS = 0x04; 64558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey public static final int FIELD_TX_BYTES = 0x08; 65558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey public static final int FIELD_TX_PACKETS = 0x10; 66558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey public static final int FIELD_OPERATIONS = 0x20; 67d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey 6863d27a9233fed934340231f438493746084a681dJeff Sharkey public static final int FIELD_ALL = 0xFFFFFFFF; 6963d27a9233fed934340231f438493746084a681dJeff Sharkey 7063d27a9233fed934340231f438493746084a681dJeff Sharkey private long bucketDuration; 71d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey private int bucketCount; 72d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey private long[] bucketStart; 73558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey private long[] activeTime; 74d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey private long[] rxBytes; 75a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey private long[] rxPackets; 76d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey private long[] txBytes; 77a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey private long[] txPackets; 7863d27a9233fed934340231f438493746084a681dJeff Sharkey private long[] operations; 7963abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey private long totalBytes; 80d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey 81d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey public static class Entry { 8263d27a9233fed934340231f438493746084a681dJeff Sharkey public static final long UNKNOWN = -1; 8363d27a9233fed934340231f438493746084a681dJeff Sharkey 84d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey public long bucketDuration; 85558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey public long bucketStart; 86558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey public long activeTime; 87d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey public long rxBytes; 88a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey public long rxPackets; 89d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey public long txBytes; 90a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey public long txPackets; 9163d27a9233fed934340231f438493746084a681dJeff Sharkey public long operations; 92d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey } 9375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 94d2a458750e5a3d490af09cecb5c28370baf0a913Jeff Sharkey public NetworkStatsHistory(long bucketDuration) { 9563d27a9233fed934340231f438493746084a681dJeff Sharkey this(bucketDuration, 10, FIELD_ALL); 964a97122ebf4d92a3f94402041729d77905e6c0c0Jeff Sharkey } 974a97122ebf4d92a3f94402041729d77905e6c0c0Jeff Sharkey 984a97122ebf4d92a3f94402041729d77905e6c0c0Jeff Sharkey public NetworkStatsHistory(long bucketDuration, int initialSize) { 9963d27a9233fed934340231f438493746084a681dJeff Sharkey this(bucketDuration, initialSize, FIELD_ALL); 10063d27a9233fed934340231f438493746084a681dJeff Sharkey } 10163d27a9233fed934340231f438493746084a681dJeff Sharkey 10263d27a9233fed934340231f438493746084a681dJeff Sharkey public NetworkStatsHistory(long bucketDuration, int initialSize, int fields) { 10375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey this.bucketDuration = bucketDuration; 1044a97122ebf4d92a3f94402041729d77905e6c0c0Jeff Sharkey bucketStart = new long[initialSize]; 105558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey if ((fields & FIELD_ACTIVE_TIME) != 0) activeTime = new long[initialSize]; 10663d27a9233fed934340231f438493746084a681dJeff Sharkey if ((fields & FIELD_RX_BYTES) != 0) rxBytes = new long[initialSize]; 10763d27a9233fed934340231f438493746084a681dJeff Sharkey if ((fields & FIELD_RX_PACKETS) != 0) rxPackets = new long[initialSize]; 10863d27a9233fed934340231f438493746084a681dJeff Sharkey if ((fields & FIELD_TX_BYTES) != 0) txBytes = new long[initialSize]; 10963d27a9233fed934340231f438493746084a681dJeff Sharkey if ((fields & FIELD_TX_PACKETS) != 0) txPackets = new long[initialSize]; 11063d27a9233fed934340231f438493746084a681dJeff Sharkey if ((fields & FIELD_OPERATIONS) != 0) operations = new long[initialSize]; 1114a97122ebf4d92a3f94402041729d77905e6c0c0Jeff Sharkey bucketCount = 0; 11263abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey totalBytes = 0; 11363abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey } 11463abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey 11563abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey public NetworkStatsHistory(NetworkStatsHistory existing, long bucketDuration) { 11663abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey this(bucketDuration, existing.estimateResizeBuckets(bucketDuration)); 11763abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey recordEntireHistory(existing); 11875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 11975279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 12075279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey public NetworkStatsHistory(Parcel in) { 12175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey bucketDuration = in.readLong(); 12275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey bucketStart = readLongArray(in); 123558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey activeTime = readLongArray(in); 124a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey rxBytes = readLongArray(in); 125a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey rxPackets = readLongArray(in); 126a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey txBytes = readLongArray(in); 127a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey txPackets = readLongArray(in); 12863d27a9233fed934340231f438493746084a681dJeff Sharkey operations = readLongArray(in); 12975279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey bucketCount = bucketStart.length; 13063abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey totalBytes = in.readLong(); 13175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 13275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 133bfdd680ab44da173a4a39fcd6feccdebb9d1f855Jeff Sharkey @Override 13475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey public void writeToParcel(Parcel out, int flags) { 13575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey out.writeLong(bucketDuration); 13675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey writeLongArray(out, bucketStart, bucketCount); 137558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey writeLongArray(out, activeTime, bucketCount); 138d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey writeLongArray(out, rxBytes, bucketCount); 139a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey writeLongArray(out, rxPackets, bucketCount); 140d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey writeLongArray(out, txBytes, bucketCount); 141a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey writeLongArray(out, txPackets, bucketCount); 14263d27a9233fed934340231f438493746084a681dJeff Sharkey writeLongArray(out, operations, bucketCount); 14363abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey out.writeLong(totalBytes); 14475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 14575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 14675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey public NetworkStatsHistory(DataInputStream in) throws IOException { 14775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey final int version = in.readInt(); 14861ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey switch (version) { 1491b5a2a96f793211bfbd39aa29cc41031dfa23950Jeff Sharkey case VERSION_INIT: { 15061ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey bucketDuration = in.readLong(); 15163d27a9233fed934340231f438493746084a681dJeff Sharkey bucketStart = readFullLongArray(in); 15263d27a9233fed934340231f438493746084a681dJeff Sharkey rxBytes = readFullLongArray(in); 153a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey rxPackets = new long[bucketStart.length]; 15463d27a9233fed934340231f438493746084a681dJeff Sharkey txBytes = readFullLongArray(in); 155a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey txPackets = new long[bucketStart.length]; 15663d27a9233fed934340231f438493746084a681dJeff Sharkey operations = new long[bucketStart.length]; 15763d27a9233fed934340231f438493746084a681dJeff Sharkey bucketCount = bucketStart.length; 15863abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey totalBytes = total(rxBytes) + total(txBytes); 15963d27a9233fed934340231f438493746084a681dJeff Sharkey break; 16063d27a9233fed934340231f438493746084a681dJeff Sharkey } 161558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey case VERSION_ADD_PACKETS: 162558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey case VERSION_ADD_ACTIVE: { 16363d27a9233fed934340231f438493746084a681dJeff Sharkey bucketDuration = in.readLong(); 16463d27a9233fed934340231f438493746084a681dJeff Sharkey bucketStart = readVarLongArray(in); 165558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey activeTime = (version >= VERSION_ADD_ACTIVE) ? readVarLongArray(in) 166558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey : new long[bucketStart.length]; 16763d27a9233fed934340231f438493746084a681dJeff Sharkey rxBytes = readVarLongArray(in); 16863d27a9233fed934340231f438493746084a681dJeff Sharkey rxPackets = readVarLongArray(in); 16963d27a9233fed934340231f438493746084a681dJeff Sharkey txBytes = readVarLongArray(in); 17063d27a9233fed934340231f438493746084a681dJeff Sharkey txPackets = readVarLongArray(in); 17163d27a9233fed934340231f438493746084a681dJeff Sharkey operations = readVarLongArray(in); 17261ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey bucketCount = bucketStart.length; 17363abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey totalBytes = total(rxBytes) + total(txBytes); 17461ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey break; 17561ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey } 17661ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey default: { 17761ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey throw new ProtocolException("unexpected version: " + version); 17861ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey } 17961ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey } 180b0a579f83369ca2daa885222a35f1cd3c054ab11Jeff Sharkey 181b0a579f83369ca2daa885222a35f1cd3c054ab11Jeff Sharkey if (bucketStart.length != bucketCount || rxBytes.length != bucketCount 182b0a579f83369ca2daa885222a35f1cd3c054ab11Jeff Sharkey || rxPackets.length != bucketCount || txBytes.length != bucketCount 183b0a579f83369ca2daa885222a35f1cd3c054ab11Jeff Sharkey || txPackets.length != bucketCount || operations.length != bucketCount) { 184b0a579f83369ca2daa885222a35f1cd3c054ab11Jeff Sharkey throw new ProtocolException("Mismatched history lengths"); 185b0a579f83369ca2daa885222a35f1cd3c054ab11Jeff Sharkey } 18675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 18775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 18875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey public void writeToStream(DataOutputStream out) throws IOException { 189558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey out.writeInt(VERSION_ADD_ACTIVE); 19075279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey out.writeLong(bucketDuration); 19163d27a9233fed934340231f438493746084a681dJeff Sharkey writeVarLongArray(out, bucketStart, bucketCount); 192558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey writeVarLongArray(out, activeTime, bucketCount); 19363d27a9233fed934340231f438493746084a681dJeff Sharkey writeVarLongArray(out, rxBytes, bucketCount); 19463d27a9233fed934340231f438493746084a681dJeff Sharkey writeVarLongArray(out, rxPackets, bucketCount); 19563d27a9233fed934340231f438493746084a681dJeff Sharkey writeVarLongArray(out, txBytes, bucketCount); 19663d27a9233fed934340231f438493746084a681dJeff Sharkey writeVarLongArray(out, txPackets, bucketCount); 19763d27a9233fed934340231f438493746084a681dJeff Sharkey writeVarLongArray(out, operations, bucketCount); 19875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 19975279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 200bfdd680ab44da173a4a39fcd6feccdebb9d1f855Jeff Sharkey @Override 20175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey public int describeContents() { 20275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey return 0; 20375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 20475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 205d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey public int size() { 206d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey return bucketCount; 207d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey } 208d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey 209d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey public long getBucketDuration() { 210d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey return bucketDuration; 211d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey } 212d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey 213434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey public long getStart() { 214434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey if (bucketCount > 0) { 215434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey return bucketStart[0]; 216434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey } else { 217434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey return Long.MAX_VALUE; 218434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey } 219434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey } 220434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey 221434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey public long getEnd() { 222434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey if (bucketCount > 0) { 223434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey return bucketStart[bucketCount - 1] + bucketDuration; 224434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey } else { 225434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey return Long.MIN_VALUE; 226434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey } 227434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey } 228434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey 229d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey /** 23063abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey * Return total bytes represented by this history. 23163abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey */ 23263abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey public long getTotalBytes() { 23363abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey return totalBytes; 23463abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey } 23563abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey 23663abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey /** 23769b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey * Return index of bucket that contains or is immediately before the 23869b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey * requested time. 23969b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey */ 24069b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey public int getIndexBefore(long time) { 24169b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey int index = Arrays.binarySearch(bucketStart, 0, bucketCount, time); 24269b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey if (index < 0) { 24369b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey index = (~index) - 1; 24469b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey } else { 24569b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey index -= 1; 24669b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey } 24769b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey return MathUtils.constrain(index, 0, bucketCount - 1); 24869b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey } 24969b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey 25069b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey /** 25169b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey * Return index of bucket that contains or is immediately after the 25269b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey * requested time. 25369b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey */ 25469b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey public int getIndexAfter(long time) { 25569b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey int index = Arrays.binarySearch(bucketStart, 0, bucketCount, time); 25669b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey if (index < 0) { 25769b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey index = ~index; 25869b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey } else { 25969b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey index += 1; 26069b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey } 26169b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey return MathUtils.constrain(index, 0, bucketCount - 1); 26269b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey } 26369b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey 26469b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey /** 265d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey * Return specific stats entry. 266d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey */ 267d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey public Entry getValues(int i, Entry recycle) { 268d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey final Entry entry = recycle != null ? recycle : new Entry(); 269d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey entry.bucketStart = bucketStart[i]; 270d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey entry.bucketDuration = bucketDuration; 271558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey entry.activeTime = getLong(activeTime, i, UNKNOWN); 27263d27a9233fed934340231f438493746084a681dJeff Sharkey entry.rxBytes = getLong(rxBytes, i, UNKNOWN); 27363d27a9233fed934340231f438493746084a681dJeff Sharkey entry.rxPackets = getLong(rxPackets, i, UNKNOWN); 27463d27a9233fed934340231f438493746084a681dJeff Sharkey entry.txBytes = getLong(txBytes, i, UNKNOWN); 27563d27a9233fed934340231f438493746084a681dJeff Sharkey entry.txPackets = getLong(txPackets, i, UNKNOWN); 27663d27a9233fed934340231f438493746084a681dJeff Sharkey entry.operations = getLong(operations, i, UNKNOWN); 277d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey return entry; 278d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey } 279d37948f6ed1667d077e0e3a38808f42f981ddcc2Jeff Sharkey 28075279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey /** 28175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * Record that data traffic occurred in the given time range. Will 28275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * distribute across internal buckets, creating new buckets as needed. 28375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey */ 284a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey @Deprecated 285a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey public void recordData(long start, long end, long rxBytes, long txBytes) { 286b5d55e302d2253e4bfb233ea705caf258cdc4cb9Jeff Sharkey recordData(start, end, new NetworkStats.Entry( 287b5d55e302d2253e4bfb233ea705caf258cdc4cb9Jeff Sharkey IFACE_ALL, UID_ALL, SET_DEFAULT, TAG_NONE, rxBytes, 0L, txBytes, 0L, 0L)); 288a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey } 289a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey 290a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey /** 291a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey * Record that data traffic occurred in the given time range. Will 292a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey * distribute across internal buckets, creating new buckets as needed. 293a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey */ 294a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey public void recordData(long start, long end, NetworkStats.Entry entry) { 29563abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey long rxBytes = entry.rxBytes; 29663abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey long rxPackets = entry.rxPackets; 29763abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey long txBytes = entry.txBytes; 29863abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey long txPackets = entry.txPackets; 29963abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey long operations = entry.operations; 30063abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey 30163abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey if (entry.isNegative()) { 302a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey throw new IllegalArgumentException("tried recording negative data"); 3031b5a2a96f793211bfbd39aa29cc41031dfa23950Jeff Sharkey } 30463abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey if (entry.isEmpty()) { 305367d15ab1a33b6159447fa8542d4fa8ff148371cJeff Sharkey return; 306367d15ab1a33b6159447fa8542d4fa8ff148371cJeff Sharkey } 3071b5a2a96f793211bfbd39aa29cc41031dfa23950Jeff Sharkey 30875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey // create any buckets needed by this range 30975279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey ensureBuckets(start, end); 31075279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 31175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey // distribute data usage into buckets 312a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey long duration = end - start; 31369b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey final int startIndex = getIndexAfter(end); 31469b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey for (int i = startIndex; i >= 0; i--) { 31575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey final long curStart = bucketStart[i]; 31675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey final long curEnd = curStart + bucketDuration; 31775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 31875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey // bucket is older than record; we're finished 31975279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey if (curEnd < start) break; 32075279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey // bucket is newer than record; keep looking 32175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey if (curStart > end) continue; 32275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 32375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey final long overlap = Math.min(curEnd, end) - Math.max(curStart, start); 324a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey if (overlap <= 0) continue; 325a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey 326a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey // integer math each time is faster than floating point 32763abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey final long fracRxBytes = rxBytes * overlap / duration; 32863abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey final long fracRxPackets = rxPackets * overlap / duration; 32963abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey final long fracTxBytes = txBytes * overlap / duration; 33063abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey final long fracTxPackets = txPackets * overlap / duration; 33163abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey final long fracOperations = operations * overlap / duration; 332a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey 333558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey addLong(activeTime, i, overlap); 33463abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey addLong(this.rxBytes, i, fracRxBytes); rxBytes -= fracRxBytes; 33563abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey addLong(this.rxPackets, i, fracRxPackets); rxPackets -= fracRxPackets; 33663abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey addLong(this.txBytes, i, fracTxBytes); txBytes -= fracTxBytes; 33763abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey addLong(this.txPackets, i, fracTxPackets); txPackets -= fracTxPackets; 33863abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey addLong(this.operations, i, fracOperations); operations -= fracOperations; 339a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey 340a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey duration -= overlap; 34175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 34263abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey 34363abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey totalBytes += entry.rxBytes + entry.txBytes; 34475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 34575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 34675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey /** 34719862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey * Record an entire {@link NetworkStatsHistory} into this history. Usually 34819862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey * for combining together stats for external reporting. 34919862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey */ 35019862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey public void recordEntireHistory(NetworkStatsHistory input) { 35170c70530bd6793869736ec894498e4ebf5dc9b20Jeff Sharkey recordHistory(input, Long.MIN_VALUE, Long.MAX_VALUE); 35270c70530bd6793869736ec894498e4ebf5dc9b20Jeff Sharkey } 35370c70530bd6793869736ec894498e4ebf5dc9b20Jeff Sharkey 35470c70530bd6793869736ec894498e4ebf5dc9b20Jeff Sharkey /** 35570c70530bd6793869736ec894498e4ebf5dc9b20Jeff Sharkey * Record given {@link NetworkStatsHistory} into this history, copying only 35670c70530bd6793869736ec894498e4ebf5dc9b20Jeff Sharkey * buckets that atomically occur in the inclusive time range. Doesn't 35770c70530bd6793869736ec894498e4ebf5dc9b20Jeff Sharkey * interpolate across partial buckets. 35870c70530bd6793869736ec894498e4ebf5dc9b20Jeff Sharkey */ 35970c70530bd6793869736ec894498e4ebf5dc9b20Jeff Sharkey public void recordHistory(NetworkStatsHistory input, long start, long end) { 360a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey final NetworkStats.Entry entry = new NetworkStats.Entry( 361b5d55e302d2253e4bfb233ea705caf258cdc4cb9Jeff Sharkey IFACE_ALL, UID_ALL, SET_DEFAULT, TAG_NONE, 0L, 0L, 0L, 0L, 0L); 36219862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey for (int i = 0; i < input.bucketCount; i++) { 36370c70530bd6793869736ec894498e4ebf5dc9b20Jeff Sharkey final long bucketStart = input.bucketStart[i]; 36470c70530bd6793869736ec894498e4ebf5dc9b20Jeff Sharkey final long bucketEnd = bucketStart + input.bucketDuration; 36570c70530bd6793869736ec894498e4ebf5dc9b20Jeff Sharkey 36670c70530bd6793869736ec894498e4ebf5dc9b20Jeff Sharkey // skip when bucket is outside requested range 36770c70530bd6793869736ec894498e4ebf5dc9b20Jeff Sharkey if (bucketStart < start || bucketEnd > end) continue; 368a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey 36963d27a9233fed934340231f438493746084a681dJeff Sharkey entry.rxBytes = getLong(input.rxBytes, i, 0L); 37063d27a9233fed934340231f438493746084a681dJeff Sharkey entry.rxPackets = getLong(input.rxPackets, i, 0L); 37163d27a9233fed934340231f438493746084a681dJeff Sharkey entry.txBytes = getLong(input.txBytes, i, 0L); 37263d27a9233fed934340231f438493746084a681dJeff Sharkey entry.txPackets = getLong(input.txPackets, i, 0L); 37363d27a9233fed934340231f438493746084a681dJeff Sharkey entry.operations = getLong(input.operations, i, 0L); 374a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey 37570c70530bd6793869736ec894498e4ebf5dc9b20Jeff Sharkey recordData(bucketStart, bucketEnd, entry); 37619862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey } 37719862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey } 37819862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey 37919862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey /** 38075279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * Ensure that buckets exist for given time range, creating as needed. 38175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey */ 38275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey private void ensureBuckets(long start, long end) { 38375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey // normalize incoming range to bucket boundaries 38475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey start -= start % bucketDuration; 38575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey end += (bucketDuration - (end % bucketDuration)) % bucketDuration; 38675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 38775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey for (long now = start; now < end; now += bucketDuration) { 38875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey // try finding existing bucket 38975279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey final int index = Arrays.binarySearch(bucketStart, 0, bucketCount, now); 39075279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey if (index < 0) { 39175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey // bucket missing, create and insert 39275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey insertBucket(~index, now); 39375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 39475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 39575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 39675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 39775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey /** 39875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * Insert new bucket at requested index and starting time. 39975279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey */ 40075279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey private void insertBucket(int index, long start) { 40175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey // create more buckets when needed 4024a97122ebf4d92a3f94402041729d77905e6c0c0Jeff Sharkey if (bucketCount >= bucketStart.length) { 4034a97122ebf4d92a3f94402041729d77905e6c0c0Jeff Sharkey final int newLength = Math.max(bucketStart.length, 10) * 3 / 2; 40475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey bucketStart = Arrays.copyOf(bucketStart, newLength); 405558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey if (activeTime != null) activeTime = Arrays.copyOf(activeTime, newLength); 40663d27a9233fed934340231f438493746084a681dJeff Sharkey if (rxBytes != null) rxBytes = Arrays.copyOf(rxBytes, newLength); 40763d27a9233fed934340231f438493746084a681dJeff Sharkey if (rxPackets != null) rxPackets = Arrays.copyOf(rxPackets, newLength); 40863d27a9233fed934340231f438493746084a681dJeff Sharkey if (txBytes != null) txBytes = Arrays.copyOf(txBytes, newLength); 40963d27a9233fed934340231f438493746084a681dJeff Sharkey if (txPackets != null) txPackets = Arrays.copyOf(txPackets, newLength); 41063d27a9233fed934340231f438493746084a681dJeff Sharkey if (operations != null) operations = Arrays.copyOf(operations, newLength); 41175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 41275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 41375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey // create gap when inserting bucket in middle 41475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey if (index < bucketCount) { 41575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey final int dstPos = index + 1; 41675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey final int length = bucketCount - index; 41775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 41875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey System.arraycopy(bucketStart, index, bucketStart, dstPos, length); 419558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey if (activeTime != null) System.arraycopy(activeTime, index, activeTime, dstPos, length); 42063d27a9233fed934340231f438493746084a681dJeff Sharkey if (rxBytes != null) System.arraycopy(rxBytes, index, rxBytes, dstPos, length); 42163d27a9233fed934340231f438493746084a681dJeff Sharkey if (rxPackets != null) System.arraycopy(rxPackets, index, rxPackets, dstPos, length); 42263d27a9233fed934340231f438493746084a681dJeff Sharkey if (txBytes != null) System.arraycopy(txBytes, index, txBytes, dstPos, length); 42363d27a9233fed934340231f438493746084a681dJeff Sharkey if (txPackets != null) System.arraycopy(txPackets, index, txPackets, dstPos, length); 42463d27a9233fed934340231f438493746084a681dJeff Sharkey if (operations != null) System.arraycopy(operations, index, operations, dstPos, length); 42575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 42675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 42775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey bucketStart[index] = start; 428558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey setLong(activeTime, index, 0L); 42963d27a9233fed934340231f438493746084a681dJeff Sharkey setLong(rxBytes, index, 0L); 43063d27a9233fed934340231f438493746084a681dJeff Sharkey setLong(rxPackets, index, 0L); 43163d27a9233fed934340231f438493746084a681dJeff Sharkey setLong(txBytes, index, 0L); 43263d27a9233fed934340231f438493746084a681dJeff Sharkey setLong(txPackets, index, 0L); 43363d27a9233fed934340231f438493746084a681dJeff Sharkey setLong(operations, index, 0L); 43475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey bucketCount++; 43575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 43675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 43775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey /** 43875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey * Remove buckets older than requested cutoff. 43975279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey */ 44063abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey @Deprecated 44175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey public void removeBucketsBefore(long cutoff) { 44275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey int i; 44375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey for (i = 0; i < bucketCount; i++) { 44475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey final long curStart = bucketStart[i]; 44575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey final long curEnd = curStart + bucketDuration; 44675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 44775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey // cutoff happens before or during this bucket; everything before 44875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey // this bucket should be removed. 44975279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey if (curEnd > cutoff) break; 45075279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 45175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 45275279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey if (i > 0) { 45375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey final int length = bucketStart.length; 45475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey bucketStart = Arrays.copyOfRange(bucketStart, i, length); 455558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey if (activeTime != null) activeTime = Arrays.copyOfRange(activeTime, i, length); 45663d27a9233fed934340231f438493746084a681dJeff Sharkey if (rxBytes != null) rxBytes = Arrays.copyOfRange(rxBytes, i, length); 45763d27a9233fed934340231f438493746084a681dJeff Sharkey if (rxPackets != null) rxPackets = Arrays.copyOfRange(rxPackets, i, length); 45863d27a9233fed934340231f438493746084a681dJeff Sharkey if (txBytes != null) txBytes = Arrays.copyOfRange(txBytes, i, length); 45963d27a9233fed934340231f438493746084a681dJeff Sharkey if (txPackets != null) txPackets = Arrays.copyOfRange(txPackets, i, length); 46063d27a9233fed934340231f438493746084a681dJeff Sharkey if (operations != null) operations = Arrays.copyOfRange(operations, i, length); 46175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey bucketCount -= i; 46263abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey 46363abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey // TODO: subtract removed values from totalBytes 46475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 46575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 46675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 46761ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey /** 46819862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey * Return interpolated data usage across the requested range. Interpolates 46919862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey * across buckets, so values may be rounded slightly. 47019862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey */ 471434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey public Entry getValues(long start, long end, Entry recycle) { 472434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey return getValues(start, end, Long.MAX_VALUE, recycle); 473434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey } 474434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey 475434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey /** 476434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey * Return interpolated data usage across the requested range. Interpolates 477434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey * across buckets, so values may be rounded slightly. 478434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey */ 479434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey public Entry getValues(long start, long end, long now, Entry recycle) { 480434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey final Entry entry = recycle != null ? recycle : new Entry(); 481434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey entry.bucketDuration = end - start; 482558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey entry.bucketStart = start; 483558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey entry.activeTime = activeTime != null ? 0 : UNKNOWN; 48463d27a9233fed934340231f438493746084a681dJeff Sharkey entry.rxBytes = rxBytes != null ? 0 : UNKNOWN; 48563d27a9233fed934340231f438493746084a681dJeff Sharkey entry.rxPackets = rxPackets != null ? 0 : UNKNOWN; 48663d27a9233fed934340231f438493746084a681dJeff Sharkey entry.txBytes = txBytes != null ? 0 : UNKNOWN; 48763d27a9233fed934340231f438493746084a681dJeff Sharkey entry.txPackets = txPackets != null ? 0 : UNKNOWN; 48863d27a9233fed934340231f438493746084a681dJeff Sharkey entry.operations = operations != null ? 0 : UNKNOWN; 48919862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey 49069b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey final int startIndex = getIndexAfter(end); 49169b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey for (int i = startIndex; i >= 0; i--) { 49219862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey final long curStart = bucketStart[i]; 49319862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey final long curEnd = curStart + bucketDuration; 49419862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey 49534c73acf88c8190b8cd51d8b8f2b9c22aa7f7941Jeff Sharkey // bucket is older than request; we're finished 49634c73acf88c8190b8cd51d8b8f2b9c22aa7f7941Jeff Sharkey if (curEnd <= start) break; 49734c73acf88c8190b8cd51d8b8f2b9c22aa7f7941Jeff Sharkey // bucket is newer than request; keep looking 49834c73acf88c8190b8cd51d8b8f2b9c22aa7f7941Jeff Sharkey if (curStart >= end) continue; 49919862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey 500434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey // include full value for active buckets, otherwise only fractional 501434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey final boolean activeBucket = curStart < now && curEnd > now; 50269b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey final long overlap; 50369b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey if (activeBucket) { 50469b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey overlap = bucketDuration; 50569b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey } else { 50669b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey final long overlapEnd = curEnd < end ? curEnd : end; 50769b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey final long overlapStart = curStart > start ? curStart : start; 50869b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey overlap = overlapEnd - overlapStart; 50969b0f63af2e3babc2e9f048c4682032a0c17d9d0Jeff Sharkey } 510a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey if (overlap <= 0) continue; 511a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey 512a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey // integer math each time is faster than floating point 513558a23200697d306b75750cf4612cf0717e73537Jeff Sharkey if (activeTime != null) entry.activeTime += activeTime[i] * overlap / bucketDuration; 51463d27a9233fed934340231f438493746084a681dJeff Sharkey if (rxBytes != null) entry.rxBytes += rxBytes[i] * overlap / bucketDuration; 51563d27a9233fed934340231f438493746084a681dJeff Sharkey if (rxPackets != null) entry.rxPackets += rxPackets[i] * overlap / bucketDuration; 51663d27a9233fed934340231f438493746084a681dJeff Sharkey if (txBytes != null) entry.txBytes += txBytes[i] * overlap / bucketDuration; 51763d27a9233fed934340231f438493746084a681dJeff Sharkey if (txPackets != null) entry.txPackets += txPackets[i] * overlap / bucketDuration; 51863d27a9233fed934340231f438493746084a681dJeff Sharkey if (operations != null) entry.operations += operations[i] * overlap / bucketDuration; 51919862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey } 520434962e44ea93b1c4d216c55f636a435bf54aa54Jeff Sharkey return entry; 52119862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey } 52219862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey 52319862bf5d058b6ab0c2979e7a5e0297dae6b170bJeff Sharkey /** 52461ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey * @deprecated only for temporary testing 52561ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey */ 52661ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey @Deprecated 527293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey public void generateRandom(long start, long end, long bytes) { 528293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey final Random r = new Random(); 529293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey 530293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey final float fractionRx = r.nextFloat(); 531293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey final long rxBytes = (long) (bytes * fractionRx); 532293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey final long txBytes = (long) (bytes * (1 - fractionRx)); 533293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey 534293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey final long rxPackets = rxBytes / 1024; 535293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey final long txPackets = txBytes / 1024; 536293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey final long operations = rxBytes / 2048; 537293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey 538293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey generateRandom(start, end, rxBytes, rxPackets, txBytes, txPackets, operations, r); 539293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey } 540293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey 541293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey /** 542293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey * @deprecated only for temporary testing 543293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey */ 544293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey @Deprecated 54563d27a9233fed934340231f438493746084a681dJeff Sharkey public void generateRandom(long start, long end, long rxBytes, long rxPackets, long txBytes, 546293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey long txPackets, long operations, Random r) { 54761ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey ensureBuckets(start, end); 54861ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey 549a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey final NetworkStats.Entry entry = new NetworkStats.Entry( 550b5d55e302d2253e4bfb233ea705caf258cdc4cb9Jeff Sharkey IFACE_ALL, UID_ALL, SET_DEFAULT, TAG_NONE, 0L, 0L, 0L, 0L, 0L); 55104cd0e47dbc1e9769ac6f258c923d5b17fa57986Jeff Sharkey while (rxBytes > 1024 || rxPackets > 128 || txBytes > 1024 || txPackets > 128 55204cd0e47dbc1e9769ac6f258c923d5b17fa57986Jeff Sharkey || operations > 32) { 55361ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey final long curStart = randomLong(r, start, end); 554293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey final long curEnd = curStart + randomLong(r, 0, (end - curStart) / 2); 55563d27a9233fed934340231f438493746084a681dJeff Sharkey 55663d27a9233fed934340231f438493746084a681dJeff Sharkey entry.rxBytes = randomLong(r, 0, rxBytes); 55763d27a9233fed934340231f438493746084a681dJeff Sharkey entry.rxPackets = randomLong(r, 0, rxPackets); 55863d27a9233fed934340231f438493746084a681dJeff Sharkey entry.txBytes = randomLong(r, 0, txBytes); 55963d27a9233fed934340231f438493746084a681dJeff Sharkey entry.txPackets = randomLong(r, 0, txPackets); 56063d27a9233fed934340231f438493746084a681dJeff Sharkey entry.operations = randomLong(r, 0, operations); 56163d27a9233fed934340231f438493746084a681dJeff Sharkey 56263d27a9233fed934340231f438493746084a681dJeff Sharkey rxBytes -= entry.rxBytes; 56363d27a9233fed934340231f438493746084a681dJeff Sharkey rxPackets -= entry.rxPackets; 56463d27a9233fed934340231f438493746084a681dJeff Sharkey txBytes -= entry.txBytes; 56563d27a9233fed934340231f438493746084a681dJeff Sharkey txPackets -= entry.txPackets; 56663d27a9233fed934340231f438493746084a681dJeff Sharkey operations -= entry.operations; 567f0ceede8fff5df24e5c98701d81c2b71eb138aa9Jeff Sharkey 568f0ceede8fff5df24e5c98701d81c2b71eb138aa9Jeff Sharkey recordData(curStart, curEnd, entry); 56961ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey } 57061ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey } 57161ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey 572293779f9c63cbae0dde564449f0270b595593b0dJeff Sharkey public static long randomLong(Random r, long start, long end) { 57361ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey return (long) (start + (r.nextFloat() * (end - start))); 57461ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey } 57561ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey 57663abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey public void dump(IndentingPrintWriter pw, boolean fullHistory) { 57761ee0bbb5b87fb5c4c3dc219868d52743def3d2bJeff Sharkey pw.print("NetworkStatsHistory: bucketDuration="); pw.println(bucketDuration); 57863abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey pw.increaseIndent(); 579350083e36b9db6062e165954403ef921ff3dfdadJeff Sharkey 580350083e36b9db6062e165954403ef921ff3dfdadJeff Sharkey final int start = fullHistory ? 0 : Math.max(0, bucketCount - 32); 581350083e36b9db6062e165954403ef921ff3dfdadJeff Sharkey if (start > 0) { 58263abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey pw.print("(omitting "); pw.print(start); pw.println(" buckets)"); 583350083e36b9db6062e165954403ef921ff3dfdadJeff Sharkey } 584350083e36b9db6062e165954403ef921ff3dfdadJeff Sharkey 585350083e36b9db6062e165954403ef921ff3dfdadJeff Sharkey for (int i = start; i < bucketCount; i++) { 58663abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey pw.print("bucketStart="); pw.print(bucketStart[i]); 58747eb102b40cd1324d89816a7fb0fecd14fd7a408Jeff Sharkey if (activeTime != null) { pw.print(" activeTime="); pw.print(activeTime[i]); } 58847eb102b40cd1324d89816a7fb0fecd14fd7a408Jeff Sharkey if (rxBytes != null) { pw.print(" rxBytes="); pw.print(rxBytes[i]); } 58947eb102b40cd1324d89816a7fb0fecd14fd7a408Jeff Sharkey if (rxPackets != null) { pw.print(" rxPackets="); pw.print(rxPackets[i]); } 59047eb102b40cd1324d89816a7fb0fecd14fd7a408Jeff Sharkey if (txBytes != null) { pw.print(" txBytes="); pw.print(txBytes[i]); } 59147eb102b40cd1324d89816a7fb0fecd14fd7a408Jeff Sharkey if (txPackets != null) { pw.print(" txPackets="); pw.print(txPackets[i]); } 59247eb102b40cd1324d89816a7fb0fecd14fd7a408Jeff Sharkey if (operations != null) { pw.print(" operations="); pw.print(operations[i]); } 59363d27a9233fed934340231f438493746084a681dJeff Sharkey pw.println(); 59475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 59563abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey 59663abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey pw.decreaseIndent(); 59775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 59875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 59975279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey @Override 60075279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey public String toString() { 60175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey final CharArrayWriter writer = new CharArrayWriter(); 60263abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey dump(new IndentingPrintWriter(writer, " "), false); 60375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey return writer.toString(); 60475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 60575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 60675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey public static final Creator<NetworkStatsHistory> CREATOR = new Creator<NetworkStatsHistory>() { 607bfdd680ab44da173a4a39fcd6feccdebb9d1f855Jeff Sharkey @Override 60875279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey public NetworkStatsHistory createFromParcel(Parcel in) { 60975279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey return new NetworkStatsHistory(in); 61075279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 61175279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 612bfdd680ab44da173a4a39fcd6feccdebb9d1f855Jeff Sharkey @Override 61375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey public NetworkStatsHistory[] newArray(int size) { 61475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey return new NetworkStatsHistory[size]; 61575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 61675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey }; 61775279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 61863d27a9233fed934340231f438493746084a681dJeff Sharkey private static long getLong(long[] array, int i, long value) { 61963d27a9233fed934340231f438493746084a681dJeff Sharkey return array != null ? array[i] : value; 62063d27a9233fed934340231f438493746084a681dJeff Sharkey } 62163d27a9233fed934340231f438493746084a681dJeff Sharkey 62263d27a9233fed934340231f438493746084a681dJeff Sharkey private static void setLong(long[] array, int i, long value) { 62363d27a9233fed934340231f438493746084a681dJeff Sharkey if (array != null) array[i] = value; 62463d27a9233fed934340231f438493746084a681dJeff Sharkey } 62563d27a9233fed934340231f438493746084a681dJeff Sharkey 62663d27a9233fed934340231f438493746084a681dJeff Sharkey private static void addLong(long[] array, int i, long value) { 62763d27a9233fed934340231f438493746084a681dJeff Sharkey if (array != null) array[i] += value; 62863d27a9233fed934340231f438493746084a681dJeff Sharkey } 62963d27a9233fed934340231f438493746084a681dJeff Sharkey 63063abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey public int estimateResizeBuckets(long newBucketDuration) { 63163abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey return (int) (size() * getBucketDuration() / newBucketDuration); 63263abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey } 63363abc37356728c0575d6a62a203102ae6d97953bJeff Sharkey 634a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey /** 635a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey * Utility methods for interacting with {@link DataInputStream} and 636a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey * {@link DataOutputStream}, mostly dealing with writing partial arrays. 637a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey */ 638a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey public static class DataStreamUtils { 63963d27a9233fed934340231f438493746084a681dJeff Sharkey @Deprecated 64063d27a9233fed934340231f438493746084a681dJeff Sharkey public static long[] readFullLongArray(DataInputStream in) throws IOException { 641a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey final int size = in.readInt(); 642a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey final long[] values = new long[size]; 643a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey for (int i = 0; i < values.length; i++) { 644a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey values[i] = in.readLong(); 645a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey } 646a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey return values; 647a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey } 648a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey 64963d27a9233fed934340231f438493746084a681dJeff Sharkey /** 65063d27a9233fed934340231f438493746084a681dJeff Sharkey * Read variable-length {@link Long} using protobuf-style approach. 65163d27a9233fed934340231f438493746084a681dJeff Sharkey */ 65263d27a9233fed934340231f438493746084a681dJeff Sharkey public static long readVarLong(DataInputStream in) throws IOException { 65363d27a9233fed934340231f438493746084a681dJeff Sharkey int shift = 0; 65463d27a9233fed934340231f438493746084a681dJeff Sharkey long result = 0; 65563d27a9233fed934340231f438493746084a681dJeff Sharkey while (shift < 64) { 65663d27a9233fed934340231f438493746084a681dJeff Sharkey byte b = in.readByte(); 65763d27a9233fed934340231f438493746084a681dJeff Sharkey result |= (long) (b & 0x7F) << shift; 65863d27a9233fed934340231f438493746084a681dJeff Sharkey if ((b & 0x80) == 0) 65963d27a9233fed934340231f438493746084a681dJeff Sharkey return result; 66063d27a9233fed934340231f438493746084a681dJeff Sharkey shift += 7; 66163d27a9233fed934340231f438493746084a681dJeff Sharkey } 66263d27a9233fed934340231f438493746084a681dJeff Sharkey throw new ProtocolException("malformed long"); 66363d27a9233fed934340231f438493746084a681dJeff Sharkey } 66463d27a9233fed934340231f438493746084a681dJeff Sharkey 66563d27a9233fed934340231f438493746084a681dJeff Sharkey /** 66663d27a9233fed934340231f438493746084a681dJeff Sharkey * Write variable-length {@link Long} using protobuf-style approach. 66763d27a9233fed934340231f438493746084a681dJeff Sharkey */ 66863d27a9233fed934340231f438493746084a681dJeff Sharkey public static void writeVarLong(DataOutputStream out, long value) throws IOException { 66963d27a9233fed934340231f438493746084a681dJeff Sharkey while (true) { 67063d27a9233fed934340231f438493746084a681dJeff Sharkey if ((value & ~0x7FL) == 0) { 67163d27a9233fed934340231f438493746084a681dJeff Sharkey out.writeByte((int) value); 67263d27a9233fed934340231f438493746084a681dJeff Sharkey return; 67363d27a9233fed934340231f438493746084a681dJeff Sharkey } else { 67463d27a9233fed934340231f438493746084a681dJeff Sharkey out.writeByte(((int) value & 0x7F) | 0x80); 67563d27a9233fed934340231f438493746084a681dJeff Sharkey value >>>= 7; 67663d27a9233fed934340231f438493746084a681dJeff Sharkey } 67763d27a9233fed934340231f438493746084a681dJeff Sharkey } 67863d27a9233fed934340231f438493746084a681dJeff Sharkey } 67963d27a9233fed934340231f438493746084a681dJeff Sharkey 68063d27a9233fed934340231f438493746084a681dJeff Sharkey public static long[] readVarLongArray(DataInputStream in) throws IOException { 68163d27a9233fed934340231f438493746084a681dJeff Sharkey final int size = in.readInt(); 68263d27a9233fed934340231f438493746084a681dJeff Sharkey if (size == -1) return null; 68363d27a9233fed934340231f438493746084a681dJeff Sharkey final long[] values = new long[size]; 68463d27a9233fed934340231f438493746084a681dJeff Sharkey for (int i = 0; i < values.length; i++) { 68563d27a9233fed934340231f438493746084a681dJeff Sharkey values[i] = readVarLong(in); 68663d27a9233fed934340231f438493746084a681dJeff Sharkey } 68763d27a9233fed934340231f438493746084a681dJeff Sharkey return values; 68863d27a9233fed934340231f438493746084a681dJeff Sharkey } 68963d27a9233fed934340231f438493746084a681dJeff Sharkey 69063d27a9233fed934340231f438493746084a681dJeff Sharkey public static void writeVarLongArray(DataOutputStream out, long[] values, int size) 691a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey throws IOException { 69263d27a9233fed934340231f438493746084a681dJeff Sharkey if (values == null) { 69363d27a9233fed934340231f438493746084a681dJeff Sharkey out.writeInt(-1); 69463d27a9233fed934340231f438493746084a681dJeff Sharkey return; 69563d27a9233fed934340231f438493746084a681dJeff Sharkey } 696a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey if (size > values.length) { 697a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey throw new IllegalArgumentException("size larger than length"); 698a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey } 699a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey out.writeInt(size); 700a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey for (int i = 0; i < size; i++) { 70163d27a9233fed934340231f438493746084a681dJeff Sharkey writeVarLong(out, values[i]); 702a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey } 70375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 70475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 70575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 706a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey /** 707a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey * Utility methods for interacting with {@link Parcel} structures, mostly 708a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey * dealing with writing partial arrays. 709a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey */ 710a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey public static class ParcelUtils { 711a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey public static long[] readLongArray(Parcel in) { 712a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey final int size = in.readInt(); 71363d27a9233fed934340231f438493746084a681dJeff Sharkey if (size == -1) return null; 714a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey final long[] values = new long[size]; 715a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey for (int i = 0; i < values.length; i++) { 716a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey values[i] = in.readLong(); 717a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey } 718a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey return values; 71975279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 72075279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 721a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey public static void writeLongArray(Parcel out, long[] values, int size) { 72263d27a9233fed934340231f438493746084a681dJeff Sharkey if (values == null) { 72363d27a9233fed934340231f438493746084a681dJeff Sharkey out.writeInt(-1); 72463d27a9233fed934340231f438493746084a681dJeff Sharkey return; 725a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey } 726a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey if (size > values.length) { 727a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey throw new IllegalArgumentException("size larger than length"); 728a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey } 729a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey out.writeInt(size); 730a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey for (int i = 0; i < size; i++) { 73163d27a9233fed934340231f438493746084a681dJeff Sharkey out.writeLong(values[i]); 732a63ba59260cd1bb3f5c16e395ace45a61f1d4461Jeff Sharkey } 73375279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 73475279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey } 73575279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey 73675279904202357565cf5a1cb11148d01f42b4569Jeff Sharkey} 737