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-rw-r--r--core/java/android/net/INetworkStatsService.aidl4
-rw-r--r--core/java/android/net/NetworkStats.java23
-rw-r--r--core/java/android/net/NetworkStatsHistory.java296
-rw-r--r--core/java/android/os/INetworkManagementService.aidl5
-rw-r--r--core/tests/coretests/src/android/net/NetworkStatsHistoryTest.java176
-rw-r--r--services/java/com/android/server/NetworkManagementService.java7
-rw-r--r--services/java/com/android/server/net/NetworkStatsService.java61
-rw-r--r--services/tests/servicestests/src/com/android/server/NetworkStatsServiceTest.java10
8 files changed, 410 insertions, 172 deletions
diff --git a/core/java/android/net/INetworkStatsService.aidl b/core/java/android/net/INetworkStatsService.aidl
index c41d182cfa11..b65506c411e8 100644
--- a/core/java/android/net/INetworkStatsService.aidl
+++ b/core/java/android/net/INetworkStatsService.aidl
@@ -24,9 +24,9 @@ import android.net.NetworkTemplate;
interface INetworkStatsService {
/** Return historical network layer stats for traffic that matches template. */
- NetworkStatsHistory getHistoryForNetwork(in NetworkTemplate template);
+ NetworkStatsHistory getHistoryForNetwork(in NetworkTemplate template, int fields);
/** Return historical network layer stats for specific UID traffic that matches template. */
- NetworkStatsHistory getHistoryForUid(in NetworkTemplate template, int uid, int tag);
+ NetworkStatsHistory getHistoryForUid(in NetworkTemplate template, int uid, int tag, int fields);
/** Return network layer usage summary for traffic that matches template. */
NetworkStats getSummaryForNetwork(in NetworkTemplate template, long start, long end);
diff --git a/core/java/android/net/NetworkStats.java b/core/java/android/net/NetworkStats.java
index 0e8e7fc5ecfe..f2fcb8fad852 100644
--- a/core/java/android/net/NetworkStats.java
+++ b/core/java/android/net/NetworkStats.java
@@ -58,7 +58,7 @@ public class NetworkStats implements Parcelable {
private long[] rxPackets;
private long[] txBytes;
private long[] txPackets;
- private int[] operations;
+ private long[] operations;
public static class Entry {
public String iface;
@@ -68,13 +68,18 @@ public class NetworkStats implements Parcelable {
public long rxPackets;
public long txBytes;
public long txPackets;
- public int operations;
+ public long operations;
public Entry() {
+ this(IFACE_ALL, UID_ALL, TAG_NONE, 0L, 0L, 0L, 0L, 0L);
+ }
+
+ public Entry(long rxBytes, long rxPackets, long txBytes, long txPackets, long operations) {
+ this(IFACE_ALL, UID_ALL, TAG_NONE, rxBytes, rxPackets, txBytes, txPackets, operations);
}
public Entry(String iface, int uid, int tag, long rxBytes, long rxPackets, long txBytes,
- long txPackets, int operations) {
+ long txPackets, long operations) {
this.iface = iface;
this.uid = uid;
this.tag = tag;
@@ -96,7 +101,7 @@ public class NetworkStats implements Parcelable {
this.rxPackets = new long[initialSize];
this.txBytes = new long[initialSize];
this.txPackets = new long[initialSize];
- this.operations = new int[initialSize];
+ this.operations = new long[initialSize];
}
public NetworkStats(Parcel parcel) {
@@ -109,7 +114,7 @@ public class NetworkStats implements Parcelable {
rxPackets = parcel.createLongArray();
txBytes = parcel.createLongArray();
txPackets = parcel.createLongArray();
- operations = parcel.createIntArray();
+ operations = parcel.createLongArray();
}
/** {@inheritDoc} */
@@ -123,16 +128,16 @@ public class NetworkStats implements Parcelable {
dest.writeLongArray(rxPackets);
dest.writeLongArray(txBytes);
dest.writeLongArray(txPackets);
- dest.writeIntArray(operations);
+ dest.writeLongArray(operations);
}
public NetworkStats addValues(String iface, int uid, int tag, long rxBytes, long rxPackets,
long txBytes, long txPackets) {
- return addValues(iface, uid, tag, rxBytes, rxPackets, txBytes, txPackets, 0);
+ return addValues(iface, uid, tag, rxBytes, rxPackets, txBytes, txPackets, 0L);
}
public NetworkStats addValues(String iface, int uid, int tag, long rxBytes, long rxPackets,
- long txBytes, long txPackets, int operations) {
+ long txBytes, long txPackets, long operations) {
return addValues(
new Entry(iface, uid, tag, rxBytes, rxPackets, txBytes, txPackets, operations));
}
@@ -197,7 +202,7 @@ public class NetworkStats implements Parcelable {
}
public NetworkStats combineValues(String iface, int uid, int tag, long rxBytes, long rxPackets,
- long txBytes, long txPackets, int operations) {
+ long txBytes, long txPackets, long operations) {
return combineValues(
new Entry(iface, uid, tag, rxBytes, rxPackets, txBytes, txPackets, operations));
}
diff --git a/core/java/android/net/NetworkStatsHistory.java b/core/java/android/net/NetworkStatsHistory.java
index 7a4b811763aa..c917af919e28 100644
--- a/core/java/android/net/NetworkStatsHistory.java
+++ b/core/java/android/net/NetworkStatsHistory.java
@@ -19,11 +19,11 @@ package android.net;
import static android.net.NetworkStats.IFACE_ALL;
import static android.net.NetworkStats.TAG_NONE;
import static android.net.NetworkStats.UID_ALL;
-import static android.net.NetworkStatsHistory.DataStreamUtils.readLongArray;
-import static android.net.NetworkStatsHistory.DataStreamUtils.writeLongArray;
-import static android.net.NetworkStatsHistory.ParcelUtils.readIntArray;
+import static android.net.NetworkStatsHistory.DataStreamUtils.readFullLongArray;
+import static android.net.NetworkStatsHistory.DataStreamUtils.readVarLongArray;
+import static android.net.NetworkStatsHistory.DataStreamUtils.writeVarLongArray;
+import static android.net.NetworkStatsHistory.Entry.UNKNOWN;
import static android.net.NetworkStatsHistory.ParcelUtils.readLongArray;
-import static android.net.NetworkStatsHistory.ParcelUtils.writeIntArray;
import static android.net.NetworkStatsHistory.ParcelUtils.writeLongArray;
import android.os.Parcel;
@@ -51,42 +51,53 @@ import java.util.Random;
*/
public class NetworkStatsHistory implements Parcelable {
private static final int VERSION_INIT = 1;
+ private static final int VERSION_ADD_PACKETS = 2;
- // TODO: teach about varint encoding to use less disk space
- // TODO: teach about omitting entire fields to reduce parcel pressure
- // TODO: persist/restore packet and operation counts
+ public static final int FIELD_RX_BYTES = 0x01;
+ public static final int FIELD_RX_PACKETS = 0x02;
+ public static final int FIELD_TX_BYTES = 0x04;
+ public static final int FIELD_TX_PACKETS = 0x08;
+ public static final int FIELD_OPERATIONS = 0x10;
- private final long bucketDuration;
+ public static final int FIELD_ALL = 0xFFFFFFFF;
+
+ private long bucketDuration;
private int bucketCount;
private long[] bucketStart;
private long[] rxBytes;
private long[] rxPackets;
private long[] txBytes;
private long[] txPackets;
- private int[] operations;
+ private long[] operations;
public static class Entry {
+ public static final long UNKNOWN = -1;
+
public long bucketStart;
public long bucketDuration;
public long rxBytes;
public long rxPackets;
public long txBytes;
public long txPackets;
- public int operations;
+ public long operations;
}
public NetworkStatsHistory(long bucketDuration) {
- this(bucketDuration, 10);
+ this(bucketDuration, 10, FIELD_ALL);
}
public NetworkStatsHistory(long bucketDuration, int initialSize) {
+ this(bucketDuration, initialSize, FIELD_ALL);
+ }
+
+ public NetworkStatsHistory(long bucketDuration, int initialSize, int fields) {
this.bucketDuration = bucketDuration;
bucketStart = new long[initialSize];
- rxBytes = new long[initialSize];
- rxPackets = new long[initialSize];
- txBytes = new long[initialSize];
- txPackets = new long[initialSize];
- operations = new int[initialSize];
+ if ((fields & FIELD_RX_BYTES) != 0) rxBytes = new long[initialSize];
+ if ((fields & FIELD_RX_PACKETS) != 0) rxPackets = new long[initialSize];
+ if ((fields & FIELD_TX_BYTES) != 0) txBytes = new long[initialSize];
+ if ((fields & FIELD_TX_PACKETS) != 0) txPackets = new long[initialSize];
+ if ((fields & FIELD_OPERATIONS) != 0) operations = new long[initialSize];
bucketCount = 0;
}
@@ -97,7 +108,7 @@ public class NetworkStatsHistory implements Parcelable {
rxPackets = readLongArray(in);
txBytes = readLongArray(in);
txPackets = readLongArray(in);
- operations = readIntArray(in);
+ operations = readLongArray(in);
bucketCount = bucketStart.length;
}
@@ -109,21 +120,31 @@ public class NetworkStatsHistory implements Parcelable {
writeLongArray(out, rxPackets, bucketCount);
writeLongArray(out, txBytes, bucketCount);
writeLongArray(out, txPackets, bucketCount);
- writeIntArray(out, operations, bucketCount);
+ writeLongArray(out, operations, bucketCount);
}
public NetworkStatsHistory(DataInputStream in) throws IOException {
- // TODO: read packet and operation counts
final int version = in.readInt();
switch (version) {
case VERSION_INIT: {
bucketDuration = in.readLong();
- bucketStart = readLongArray(in);
- rxBytes = readLongArray(in);
+ bucketStart = readFullLongArray(in);
+ rxBytes = readFullLongArray(in);
rxPackets = new long[bucketStart.length];
- txBytes = readLongArray(in);
+ txBytes = readFullLongArray(in);
txPackets = new long[bucketStart.length];
- operations = new int[bucketStart.length];
+ operations = new long[bucketStart.length];
+ bucketCount = bucketStart.length;
+ break;
+ }
+ case VERSION_ADD_PACKETS: {
+ bucketDuration = in.readLong();
+ bucketStart = readVarLongArray(in);
+ rxBytes = readVarLongArray(in);
+ rxPackets = readVarLongArray(in);
+ txBytes = readVarLongArray(in);
+ txPackets = readVarLongArray(in);
+ operations = readVarLongArray(in);
bucketCount = bucketStart.length;
break;
}
@@ -134,12 +155,14 @@ public class NetworkStatsHistory implements Parcelable {
}
public void writeToStream(DataOutputStream out) throws IOException {
- // TODO: write packet and operation counts
- out.writeInt(VERSION_INIT);
+ out.writeInt(VERSION_ADD_PACKETS);
out.writeLong(bucketDuration);
- writeLongArray(out, bucketStart, bucketCount);
- writeLongArray(out, rxBytes, bucketCount);
- writeLongArray(out, txBytes, bucketCount);
+ writeVarLongArray(out, bucketStart, bucketCount);
+ writeVarLongArray(out, rxBytes, bucketCount);
+ writeVarLongArray(out, rxPackets, bucketCount);
+ writeVarLongArray(out, txBytes, bucketCount);
+ writeVarLongArray(out, txPackets, bucketCount);
+ writeVarLongArray(out, operations, bucketCount);
}
/** {@inheritDoc} */
@@ -178,11 +201,11 @@ public class NetworkStatsHistory implements Parcelable {
final Entry entry = recycle != null ? recycle : new Entry();
entry.bucketStart = bucketStart[i];
entry.bucketDuration = bucketDuration;
- entry.rxBytes = rxBytes[i];
- entry.rxPackets = rxPackets[i];
- entry.txBytes = txBytes[i];
- entry.txPackets = txPackets[i];
- entry.operations = operations[i];
+ entry.rxBytes = getLong(rxBytes, i, UNKNOWN);
+ entry.rxPackets = getLong(rxPackets, i, UNKNOWN);
+ entry.txBytes = getLong(txBytes, i, UNKNOWN);
+ entry.txPackets = getLong(txPackets, i, UNKNOWN);
+ entry.operations = getLong(operations, i, UNKNOWN);
return entry;
}
@@ -193,7 +216,7 @@ public class NetworkStatsHistory implements Parcelable {
@Deprecated
public void recordData(long start, long end, long rxBytes, long txBytes) {
recordData(start, end,
- new NetworkStats.Entry(IFACE_ALL, UID_ALL, TAG_NONE, rxBytes, 0L, txBytes, 0L, 0));
+ new NetworkStats.Entry(IFACE_ALL, UID_ALL, TAG_NONE, rxBytes, 0L, txBytes, 0L, 0L));
}
/**
@@ -230,11 +253,11 @@ public class NetworkStatsHistory implements Parcelable {
final long fracTxPackets = entry.txPackets * overlap / duration;
final int fracOperations = (int) (entry.operations * overlap / duration);
- rxBytes[i] += fracRxBytes; entry.rxBytes -= fracRxBytes;
- rxPackets[i] += fracRxPackets; entry.rxPackets -= fracRxPackets;
- txBytes[i] += fracTxBytes; entry.txBytes -= fracTxBytes;
- txPackets[i] += fracTxPackets; entry.txPackets -= fracTxPackets;
- operations[i] += fracOperations; entry.operations -= fracOperations;
+ addLong(rxBytes, i, fracRxBytes); entry.rxBytes -= fracRxBytes;
+ addLong(rxPackets, i, fracRxPackets); entry.rxPackets -= fracRxPackets;
+ addLong(txBytes, i, fracTxBytes); entry.txBytes -= fracTxBytes;
+ addLong(txPackets, i, fracTxPackets); entry.txPackets -= fracTxPackets;
+ addLong(operations, i, fracOperations); entry.operations -= fracOperations;
duration -= overlap;
}
@@ -246,16 +269,16 @@ public class NetworkStatsHistory implements Parcelable {
*/
public void recordEntireHistory(NetworkStatsHistory input) {
final NetworkStats.Entry entry = new NetworkStats.Entry(
- IFACE_ALL, UID_ALL, TAG_NONE, 0L, 0L, 0L, 0L, 0);
+ IFACE_ALL, UID_ALL, TAG_NONE, 0L, 0L, 0L, 0L, 0L);
for (int i = 0; i < input.bucketCount; i++) {
final long start = input.bucketStart[i];
final long end = start + input.bucketDuration;
- entry.rxBytes = input.rxBytes[i];
- entry.rxPackets = input.rxPackets[i];
- entry.txBytes = input.txBytes[i];
- entry.txPackets = input.txPackets[i];
- entry.operations = input.operations[i];
+ entry.rxBytes = getLong(input.rxBytes, i, 0L);
+ entry.rxPackets = getLong(input.rxPackets, i, 0L);
+ entry.txBytes = getLong(input.txBytes, i, 0L);
+ entry.txPackets = getLong(input.txPackets, i, 0L);
+ entry.operations = getLong(input.operations, i, 0L);
recordData(start, end, entry);
}
@@ -287,11 +310,11 @@ public class NetworkStatsHistory implements Parcelable {
if (bucketCount >= bucketStart.length) {
final int newLength = Math.max(bucketStart.length, 10) * 3 / 2;
bucketStart = Arrays.copyOf(bucketStart, newLength);
- rxBytes = Arrays.copyOf(rxBytes, newLength);
- rxPackets = Arrays.copyOf(rxPackets, newLength);
- txBytes = Arrays.copyOf(txBytes, newLength);
- txPackets = Arrays.copyOf(txPackets, newLength);
- operations = Arrays.copyOf(operations, newLength);
+ if (rxBytes != null) rxBytes = Arrays.copyOf(rxBytes, newLength);
+ if (rxPackets != null) rxPackets = Arrays.copyOf(rxPackets, newLength);
+ if (txBytes != null) txBytes = Arrays.copyOf(txBytes, newLength);
+ if (txPackets != null) txPackets = Arrays.copyOf(txPackets, newLength);
+ if (operations != null) operations = Arrays.copyOf(operations, newLength);
}
// create gap when inserting bucket in middle
@@ -300,19 +323,19 @@ public class NetworkStatsHistory implements Parcelable {
final int length = bucketCount - index;
System.arraycopy(bucketStart, index, bucketStart, dstPos, length);
- System.arraycopy(rxBytes, index, rxBytes, dstPos, length);
- System.arraycopy(rxPackets, index, rxPackets, dstPos, length);
- System.arraycopy(txBytes, index, txBytes, dstPos, length);
- System.arraycopy(txPackets, index, txPackets, dstPos, length);
- System.arraycopy(operations, index, operations, dstPos, length);
+ if (rxBytes != null) System.arraycopy(rxBytes, index, rxBytes, dstPos, length);
+ if (rxPackets != null) System.arraycopy(rxPackets, index, rxPackets, dstPos, length);
+ if (txBytes != null) System.arraycopy(txBytes, index, txBytes, dstPos, length);
+ if (txPackets != null) System.arraycopy(txPackets, index, txPackets, dstPos, length);
+ if (operations != null) System.arraycopy(operations, index, operations, dstPos, length);
}
bucketStart[index] = start;
- rxBytes[index] = 0;
- rxPackets[index] = 0;
- txBytes[index] = 0;
- txPackets[index] = 0;
- operations[index] = 0;
+ setLong(rxBytes, index, 0L);
+ setLong(rxPackets, index, 0L);
+ setLong(txBytes, index, 0L);
+ setLong(txPackets, index, 0L);
+ setLong(operations, index, 0L);
bucketCount++;
}
@@ -333,11 +356,11 @@ public class NetworkStatsHistory implements Parcelable {
if (i > 0) {
final int length = bucketStart.length;
bucketStart = Arrays.copyOfRange(bucketStart, i, length);
- rxBytes = Arrays.copyOfRange(rxBytes, i, length);
- rxPackets = Arrays.copyOfRange(rxPackets, i, length);
- txBytes = Arrays.copyOfRange(txBytes, i, length);
- txPackets = Arrays.copyOfRange(txPackets, i, length);
- operations = Arrays.copyOfRange(operations, i, length);
+ if (rxBytes != null) rxBytes = Arrays.copyOfRange(rxBytes, i, length);
+ if (rxPackets != null) rxPackets = Arrays.copyOfRange(rxPackets, i, length);
+ if (txBytes != null) txBytes = Arrays.copyOfRange(txBytes, i, length);
+ if (txPackets != null) txPackets = Arrays.copyOfRange(txPackets, i, length);
+ if (operations != null) operations = Arrays.copyOfRange(operations, i, length);
bucketCount -= i;
}
}
@@ -358,11 +381,11 @@ public class NetworkStatsHistory implements Parcelable {
final Entry entry = recycle != null ? recycle : new Entry();
entry.bucketStart = start;
entry.bucketDuration = end - start;
- entry.rxBytes = 0;
- entry.rxPackets = 0;
- entry.txBytes = 0;
- entry.txPackets = 0;
- entry.operations = 0;
+ entry.rxBytes = rxBytes != null ? 0 : UNKNOWN;
+ entry.rxPackets = rxPackets != null ? 0 : UNKNOWN;
+ entry.txBytes = txBytes != null ? 0 : UNKNOWN;
+ entry.txPackets = txPackets != null ? 0 : UNKNOWN;
+ entry.operations = operations != null ? 0 : UNKNOWN;
for (int i = bucketCount - 1; i >= 0; i--) {
final long curStart = bucketStart[i];
@@ -380,11 +403,11 @@ public class NetworkStatsHistory implements Parcelable {
if (overlap <= 0) continue;
// integer math each time is faster than floating point
- entry.rxBytes += rxBytes[i] * overlap / bucketDuration;
- entry.rxPackets += rxPackets[i] * overlap / bucketDuration;
- entry.txBytes += txBytes[i] * overlap / bucketDuration;
- entry.txPackets += txPackets[i] * overlap / bucketDuration;
- entry.operations += operations[i] * overlap / bucketDuration;
+ if (rxBytes != null) entry.rxBytes += rxBytes[i] * overlap / bucketDuration;
+ if (rxPackets != null) entry.rxPackets += rxPackets[i] * overlap / bucketDuration;
+ if (txBytes != null) entry.txBytes += txBytes[i] * overlap / bucketDuration;
+ if (txPackets != null) entry.txPackets += txPackets[i] * overlap / bucketDuration;
+ if (operations != null) entry.operations += operations[i] * overlap / bucketDuration;
}
return entry;
@@ -394,19 +417,29 @@ public class NetworkStatsHistory implements Parcelable {
* @deprecated only for temporary testing
*/
@Deprecated
- public void generateRandom(long start, long end, long rx, long tx) {
+ public void generateRandom(long start, long end, long rxBytes, long rxPackets, long txBytes,
+ long txPackets, long operations) {
ensureBuckets(start, end);
final NetworkStats.Entry entry = new NetworkStats.Entry(
- IFACE_ALL, UID_ALL, TAG_NONE, 0L, 0L, 0L, 0L, 0);
+ IFACE_ALL, UID_ALL, TAG_NONE, 0L, 0L, 0L, 0L, 0L);
final Random r = new Random();
- while (rx > 1024 && tx > 1024) {
+ while (rxBytes > 1024 && rxPackets > 128 && txBytes > 1024 && txPackets > 128
+ && operations > 32) {
final long curStart = randomLong(r, start, end);
final long curEnd = randomLong(r, curStart, end);
- entry.rxBytes = randomLong(r, 0, rx);
- entry.txBytes = randomLong(r, 0, tx);
- rx -= entry.rxBytes;
- tx -= entry.txBytes;
+
+ entry.rxBytes = randomLong(r, 0, rxBytes);
+ entry.rxPackets = randomLong(r, 0, rxPackets);
+ entry.txBytes = randomLong(r, 0, txBytes);
+ entry.txPackets = randomLong(r, 0, txPackets);
+ entry.operations = randomLong(r, 0, operations);
+
+ rxBytes -= entry.rxBytes;
+ rxPackets -= entry.rxPackets;
+ txBytes -= entry.txBytes;
+ txPackets -= entry.txPackets;
+ operations -= entry.operations;
recordData(curStart, curEnd, entry);
}
@@ -429,11 +462,12 @@ public class NetworkStatsHistory implements Parcelable {
for (int i = start; i < bucketCount; i++) {
pw.print(prefix);
pw.print(" bucketStart="); pw.print(bucketStart[i]);
- pw.print(" rxBytes="); pw.print(rxBytes[i]);
- pw.print(" rxPackets="); pw.print(rxPackets[i]);
- pw.print(" txBytes="); pw.print(txBytes[i]);
- pw.print(" txPackets="); pw.print(txPackets[i]);
- pw.print(" operations="); pw.println(operations[i]);
+ if (rxBytes != null) pw.print(" rxBytes="); pw.print(rxBytes[i]);
+ if (rxPackets != null) pw.print(" rxPackets="); pw.print(rxPackets[i]);
+ if (txBytes != null) pw.print(" txBytes="); pw.print(txBytes[i]);
+ if (txPackets != null) pw.print(" txPackets="); pw.print(txPackets[i]);
+ if (operations != null) pw.print(" operations="); pw.print(operations[i]);
+ pw.println();
}
}
@@ -454,12 +488,25 @@ public class NetworkStatsHistory implements Parcelable {
}
};
+ private static long getLong(long[] array, int i, long value) {
+ return array != null ? array[i] : value;
+ }
+
+ private static void setLong(long[] array, int i, long value) {
+ if (array != null) array[i] = value;
+ }
+
+ private static void addLong(long[] array, int i, long value) {
+ if (array != null) array[i] += value;
+ }
+
/**
* Utility methods for interacting with {@link DataInputStream} and
* {@link DataOutputStream}, mostly dealing with writing partial arrays.
*/
public static class DataStreamUtils {
- public static long[] readLongArray(DataInputStream in) throws IOException {
+ @Deprecated
+ public static long[] readFullLongArray(DataInputStream in) throws IOException {
final int size = in.readInt();
final long[] values = new long[size];
for (int i = 0; i < values.length; i++) {
@@ -468,14 +515,59 @@ public class NetworkStatsHistory implements Parcelable {
return values;
}
- public static void writeLongArray(DataOutputStream out, long[] values, int size)
+ /**
+ * Read variable-length {@link Long} using protobuf-style approach.
+ */
+ public static long readVarLong(DataInputStream in) throws IOException {
+ int shift = 0;
+ long result = 0;
+ while (shift < 64) {
+ byte b = in.readByte();
+ result |= (long) (b & 0x7F) << shift;
+ if ((b & 0x80) == 0)
+ return result;
+ shift += 7;
+ }
+ throw new ProtocolException("malformed long");
+ }
+
+ /**
+ * Write variable-length {@link Long} using protobuf-style approach.
+ */
+ public static void writeVarLong(DataOutputStream out, long value) throws IOException {
+ while (true) {
+ if ((value & ~0x7FL) == 0) {
+ out.writeByte((int) value);
+ return;
+ } else {
+ out.writeByte(((int) value & 0x7F) | 0x80);
+ value >>>= 7;
+ }
+ }
+ }
+
+ public static long[] readVarLongArray(DataInputStream in) throws IOException {
+ final int size = in.readInt();
+ if (size == -1) return null;
+ final long[] values = new long[size];
+ for (int i = 0; i < values.length; i++) {
+ values[i] = readVarLong(in);
+ }
+ return values;
+ }
+
+ public static void writeVarLongArray(DataOutputStream out, long[] values, int size)
throws IOException {
+ if (values == null) {
+ out.writeInt(-1);
+ return;
+ }
if (size > values.length) {
throw new IllegalArgumentException("size larger than length");
}
out.writeInt(size);
for (int i = 0; i < size; i++) {
- out.writeLong(values[i]);
+ writeVarLong(out, values[i]);
}
}
}
@@ -487,6 +579,7 @@ public class NetworkStatsHistory implements Parcelable {
public static class ParcelUtils {
public static long[] readLongArray(Parcel in) {
final int size = in.readInt();
+ if (size == -1) return null;
final long[] values = new long[size];
for (int i = 0; i < values.length; i++) {
values[i] = in.readLong();
@@ -495,31 +588,16 @@ public class NetworkStatsHistory implements Parcelable {
}
public static void writeLongArray(Parcel out, long[] values, int size) {
- if (size > values.length) {
- throw new IllegalArgumentException("size larger than length");
- }
- out.writeInt(size);
- for (int i = 0; i < size; i++) {
- out.writeLong(values[i]);
- }
- }
-
- public static int[] readIntArray(Parcel in) {
- final int size = in.readInt();
- final int[] values = new int[size];
- for (int i = 0; i < values.length; i++) {
- values[i] = in.readInt();
+ if (values == null) {
+ out.writeInt(-1);
+ return;
}
- return values;
- }
-
- public static void writeIntArray(Parcel out, int[] values, int size) {
if (size > values.length) {
throw new IllegalArgumentException("size larger than length");
}
out.writeInt(size);
for (int i = 0; i < size; i++) {
- out.writeInt(values[i]);
+ out.writeLong(values[i]);
}
}
}
diff --git a/core/java/android/os/INetworkManagementService.aidl b/core/java/android/os/INetworkManagementService.aidl
index 3704248e8076..bc4e00cc4d21 100644
--- a/core/java/android/os/INetworkManagementService.aidl
+++ b/core/java/android/os/INetworkManagementService.aidl
@@ -240,6 +240,11 @@ interface INetworkManagementService
void setUidNetworkRules(int uid, boolean rejectOnQuotaInterfaces);
/**
+ * Return status of bandwidth control module.
+ */
+ boolean isBandwidthControlEnabled();
+
+ /**
* Configures bandwidth throttling on an interface.
*/
void setInterfaceThrottle(String iface, int rxKbps, int txKbps);
diff --git a/core/tests/coretests/src/android/net/NetworkStatsHistoryTest.java b/core/tests/coretests/src/android/net/NetworkStatsHistoryTest.java
index 242057cf963d..4db4ea52d527 100644
--- a/core/tests/coretests/src/android/net/NetworkStatsHistoryTest.java
+++ b/core/tests/coretests/src/android/net/NetworkStatsHistoryTest.java
@@ -16,6 +16,14 @@
package android.net;
+import static android.net.NetworkStatsHistory.FIELD_ALL;
+import static android.net.NetworkStatsHistory.FIELD_OPERATIONS;
+import static android.net.NetworkStatsHistory.FIELD_RX_BYTES;
+import static android.net.NetworkStatsHistory.FIELD_RX_PACKETS;
+import static android.net.NetworkStatsHistory.FIELD_TX_BYTES;
+import static android.net.NetworkStatsHistory.DataStreamUtils.readVarLong;
+import static android.net.NetworkStatsHistory.DataStreamUtils.writeVarLong;
+import static android.net.NetworkStatsHistory.Entry.UNKNOWN;
import static android.text.format.DateUtils.DAY_IN_MILLIS;
import static android.text.format.DateUtils.HOUR_IN_MILLIS;
import static android.text.format.DateUtils.MINUTE_IN_MILLIS;
@@ -30,7 +38,10 @@ import android.util.Log;
import com.android.frameworks.coretests.R;
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
+import java.io.DataOutputStream;
import java.util.Random;
@SmallTest
@@ -39,6 +50,10 @@ public class NetworkStatsHistoryTest extends AndroidTestCase {
private static final long TEST_START = 1194220800000L;
+ private static final long KB_IN_BYTES = 1024;
+ private static final long MB_IN_BYTES = KB_IN_BYTES * 1024;
+ private static final long GB_IN_BYTES = MB_IN_BYTES * 1024;
+
private NetworkStatsHistory stats;
@Override
@@ -80,10 +95,11 @@ public class NetworkStatsHistoryTest extends AndroidTestCase {
stats = new NetworkStatsHistory(BUCKET_SIZE);
// record data into narrow window to get single bucket
- stats.recordData(TEST_START, TEST_START + SECOND_IN_MILLIS, 1024L, 2048L);
+ stats.recordData(TEST_START, TEST_START + SECOND_IN_MILLIS,
+ new NetworkStats.Entry(1024L, 10L, 2048L, 20L, 2L));
assertEquals(1, stats.size());
- assertValues(stats, 0, 1024L, 2048L);
+ assertValues(stats, 0, 1024L, 10L, 2048L, 20L, 2L);
}
public void testRecordEqualBuckets() throws Exception {
@@ -92,11 +108,12 @@ public class NetworkStatsHistoryTest extends AndroidTestCase {
// split equally across two buckets
final long recordStart = TEST_START + (bucketDuration / 2);
- stats.recordData(recordStart, recordStart + bucketDuration, 1024L, 128L);
+ stats.recordData(recordStart, recordStart + bucketDuration,
+ new NetworkStats.Entry(1024L, 10L, 128L, 2L, 2L));
assertEquals(2, stats.size());
- assertValues(stats, 0, 512L, 64L);
- assertValues(stats, 1, 512L, 64L);
+ assertValues(stats, 0, 512L, 5L, 64L, 1L, 1L);
+ assertValues(stats, 1, 512L, 5L, 64L, 1L, 1L);
}
public void testRecordTouchingBuckets() throws Exception {
@@ -107,15 +124,16 @@ public class NetworkStatsHistoryTest extends AndroidTestCase {
// overlap into neighboring buckets. total record is 20 minutes.
final long recordStart = (TEST_START + BUCKET_SIZE) - MINUTE_IN_MILLIS;
final long recordEnd = (TEST_START + (BUCKET_SIZE * 2)) + (MINUTE_IN_MILLIS * 4);
- stats.recordData(recordStart, recordEnd, 1000L, 5000L);
+ stats.recordData(recordStart, recordEnd,
+ new NetworkStats.Entry(1000L, 2000L, 5000L, 10000L, 100L));
assertEquals(3, stats.size());
// first bucket should have (1/20 of value)
- assertValues(stats, 0, 50L, 250L);
+ assertValues(stats, 0, 50L, 100L, 250L, 500L, 5L);
// second bucket should have (15/20 of value)
- assertValues(stats, 1, 750L, 3750L);
+ assertValues(stats, 1, 750L, 1500L, 3750L, 7500L, 75L);
// final bucket should have (4/20 of value)
- assertValues(stats, 2, 200L, 1000L);
+ assertValues(stats, 2, 200L, 400L, 1000L, 2000L, 20L);
}
public void testRecordGapBuckets() throws Exception {
@@ -125,25 +143,28 @@ public class NetworkStatsHistoryTest extends AndroidTestCase {
// record some data today and next week with large gap
final long firstStart = TEST_START;
final long lastStart = TEST_START + WEEK_IN_MILLIS;
- stats.recordData(firstStart, firstStart + SECOND_IN_MILLIS, 128L, 256L);
- stats.recordData(lastStart, lastStart + SECOND_IN_MILLIS, 64L, 512L);
+ stats.recordData(firstStart, firstStart + SECOND_IN_MILLIS,
+ new NetworkStats.Entry(128L, 2L, 256L, 4L, 1L));
+ stats.recordData(lastStart, lastStart + SECOND_IN_MILLIS,
+ new NetworkStats.Entry(64L, 1L, 512L, 8L, 2L));
// we should have two buckets, far apart from each other
assertEquals(2, stats.size());
- assertValues(stats, 0, 128L, 256L);
- assertValues(stats, 1, 64L, 512L);
+ assertValues(stats, 0, 128L, 2L, 256L, 4L, 1L);
+ assertValues(stats, 1, 64L, 1L, 512L, 8L, 2L);
// now record something in middle, spread across two buckets
final long middleStart = TEST_START + DAY_IN_MILLIS;
final long middleEnd = middleStart + (HOUR_IN_MILLIS * 2);
- stats.recordData(middleStart, middleEnd, 2048L, 2048L);
+ stats.recordData(middleStart, middleEnd,
+ new NetworkStats.Entry(2048L, 4L, 2048L, 4L, 2L));
// now should have four buckets, with new record in middle two buckets
assertEquals(4, stats.size());
- assertValues(stats, 0, 128L, 256L);
- assertValues(stats, 1, 1024L, 1024L);
- assertValues(stats, 2, 1024L, 1024L);
- assertValues(stats, 3, 64L, 512L);
+ assertValues(stats, 0, 128L, 2L, 256L, 4L, 1L);
+ assertValues(stats, 1, 1024L, 2L, 1024L, 2L, 1L);
+ assertValues(stats, 2, 1024L, 2L, 1024L, 2L, 1L);
+ assertValues(stats, 3, 64L, 1L, 512L, 8L, 2L);
}
public void testRecordOverlapBuckets() throws Exception {
@@ -151,14 +172,16 @@ public class NetworkStatsHistoryTest extends AndroidTestCase {
stats = new NetworkStatsHistory(BUCKET_SIZE);
// record some data in one bucket, and another overlapping buckets
- stats.recordData(TEST_START, TEST_START + SECOND_IN_MILLIS, 256L, 256L);
+ stats.recordData(TEST_START, TEST_START + SECOND_IN_MILLIS,
+ new NetworkStats.Entry(256L, 2L, 256L, 2L, 1L));
final long midStart = TEST_START + (HOUR_IN_MILLIS / 2);
- stats.recordData(midStart, midStart + HOUR_IN_MILLIS, 1024L, 1024L);
+ stats.recordData(midStart, midStart + HOUR_IN_MILLIS,
+ new NetworkStats.Entry(1024L, 10L, 1024L, 10L, 10L));
// should have two buckets, with some data mixed together
assertEquals(2, stats.size());
- assertValues(stats, 0, 768L, 768L);
- assertValues(stats, 1, 512L, 512L);
+ assertValues(stats, 0, 768L, 7L, 768L, 7L, 6L);
+ assertValues(stats, 1, 512L, 5L, 512L, 5L, 5L);
}
public void testRecordEntireGapIdentical() throws Exception {
@@ -283,6 +306,7 @@ public class NetworkStatsHistoryTest extends AndroidTestCase {
public void testFuzzing() throws Exception {
try {
// fuzzing with random events, looking for crashes
+ final NetworkStats.Entry entry = new NetworkStats.Entry();
final Random r = new Random();
for (int i = 0; i < 500; i++) {
stats = new NetworkStatsHistory(r.nextLong());
@@ -291,7 +315,12 @@ public class NetworkStatsHistoryTest extends AndroidTestCase {
// add range
final long start = r.nextLong();
final long end = start + r.nextInt();
- stats.recordData(start, end, r.nextLong(), r.nextLong());
+ entry.rxBytes = nextPositiveLong(r);
+ entry.rxPackets = nextPositiveLong(r);
+ entry.txBytes = nextPositiveLong(r);
+ entry.txPackets = nextPositiveLong(r);
+ entry.operations = nextPositiveLong(r);
+ stats.recordData(start, end, entry);
} else {
// trim something
stats.removeBucketsBefore(r.nextLong());
@@ -305,6 +334,88 @@ public class NetworkStatsHistoryTest extends AndroidTestCase {
}
}
+ private static long nextPositiveLong(Random r) {
+ final long value = r.nextLong();
+ return value < 0 ? -value : value;
+ }
+
+ public void testIgnoreFields() throws Exception {
+ final NetworkStatsHistory history = new NetworkStatsHistory(
+ MINUTE_IN_MILLIS, 0, FIELD_RX_BYTES | FIELD_TX_BYTES);
+
+ history.recordData(0, MINUTE_IN_MILLIS,
+ new NetworkStats.Entry(1024L, 10L, 2048L, 20L, 4L));
+ history.recordData(0, MINUTE_IN_MILLIS * 2,
+ new NetworkStats.Entry(2L, 2L, 2L, 2L, 2L));
+
+ assertValues(
+ history, Long.MIN_VALUE, Long.MAX_VALUE, 1026L, UNKNOWN, 2050L, UNKNOWN, UNKNOWN);
+ }
+
+ public void testIgnoreFieldsRecordIn() throws Exception {
+ final NetworkStatsHistory full = new NetworkStatsHistory(MINUTE_IN_MILLIS, 0, FIELD_ALL);
+ final NetworkStatsHistory partial = new NetworkStatsHistory(
+ MINUTE_IN_MILLIS, 0, FIELD_RX_PACKETS | FIELD_OPERATIONS);
+
+ full.recordData(0, MINUTE_IN_MILLIS,
+ new NetworkStats.Entry(1024L, 10L, 2048L, 20L, 4L));
+ partial.recordEntireHistory(full);
+
+ assertValues(partial, Long.MIN_VALUE, Long.MAX_VALUE, UNKNOWN, 10L, UNKNOWN, UNKNOWN, 4L);
+ }
+
+ public void testIgnoreFieldsRecordOut() throws Exception {
+ final NetworkStatsHistory full = new NetworkStatsHistory(MINUTE_IN_MILLIS, 0, FIELD_ALL);
+ final NetworkStatsHistory partial = new NetworkStatsHistory(
+ MINUTE_IN_MILLIS, 0, FIELD_RX_PACKETS | FIELD_OPERATIONS);
+
+ partial.recordData(0, MINUTE_IN_MILLIS,
+ new NetworkStats.Entry(1024L, 10L, 2048L, 20L, 4L));
+ full.recordEntireHistory(partial);
+
+ assertValues(full, Long.MIN_VALUE, Long.MAX_VALUE, 0L, 10L, 0L, 0L, 4L);
+ }
+
+ public void testSerialize() throws Exception {
+ final NetworkStatsHistory before = new NetworkStatsHistory(MINUTE_IN_MILLIS, 40, FIELD_ALL);
+ before.recordData(0, MINUTE_IN_MILLIS * 4,
+ new NetworkStats.Entry(1024L, 10L, 2048L, 20L, 4L));
+ before.recordData(DAY_IN_MILLIS, DAY_IN_MILLIS + MINUTE_IN_MILLIS,
+ new NetworkStats.Entry(10L, 20L, 30L, 40L, 50L));
+
+ final ByteArrayOutputStream out = new ByteArrayOutputStream();
+ before.writeToStream(new DataOutputStream(out));
+ out.close();
+
+ final ByteArrayInputStream in = new ByteArrayInputStream(out.toByteArray());
+ final NetworkStatsHistory after = new NetworkStatsHistory(new DataInputStream(in));
+
+ // must have identical totals before and after
+ assertValues(before, Long.MIN_VALUE, Long.MAX_VALUE, 1034L, 30L, 2078L, 60L, 54L);
+ assertValues(after, Long.MIN_VALUE, Long.MAX_VALUE, 1034L, 30L, 2078L, 60L, 54L);
+ }
+
+ public void testVarLong() throws Exception {
+ assertEquals(0L, performVarLong(0L));
+ assertEquals(-1L, performVarLong(-1L));
+ assertEquals(1024L, performVarLong(1024L));
+ assertEquals(-1024L, performVarLong(-1024L));
+ assertEquals(40 * MB_IN_BYTES, performVarLong(40 * MB_IN_BYTES));
+ assertEquals(512 * GB_IN_BYTES, performVarLong(512 * GB_IN_BYTES));
+ assertEquals(Long.MIN_VALUE, performVarLong(Long.MIN_VALUE));
+ assertEquals(Long.MAX_VALUE, performVarLong(Long.MAX_VALUE));
+ assertEquals(Long.MIN_VALUE + 40, performVarLong(Long.MIN_VALUE + 40));
+ assertEquals(Long.MAX_VALUE - 40, performVarLong(Long.MAX_VALUE - 40));
+ }
+
+ private static long performVarLong(long before) throws Exception {
+ final ByteArrayOutputStream out = new ByteArrayOutputStream();
+ writeVarLong(new DataOutputStream(out), before);
+
+ final ByteArrayInputStream in = new ByteArrayInputStream(out.toByteArray());
+ return readVarLong(new DataInputStream(in));
+ }
+
private static void assertConsistent(NetworkStatsHistory stats) {
// verify timestamps are monotonic
long lastStart = Long.MIN_VALUE;
@@ -330,4 +441,23 @@ public class NetworkStatsHistoryTest extends AndroidTestCase {
assertEquals("unexpected txBytes", txBytes, entry.txBytes);
}
+ private static void assertValues(NetworkStatsHistory stats, int index, long rxBytes,
+ long rxPackets, long txBytes, long txPackets, long operations) {
+ final NetworkStatsHistory.Entry entry = stats.getValues(index, null);
+ assertEquals("unexpected rxBytes", rxBytes, entry.rxBytes);
+ assertEquals("unexpected rxPackets", rxPackets, entry.rxPackets);
+ assertEquals("unexpected txBytes", txBytes, entry.txBytes);
+ assertEquals("unexpected txPackets", txPackets, entry.txPackets);
+ assertEquals("unexpected operations", operations, entry.operations);
+ }
+
+ private static void assertValues(NetworkStatsHistory stats, long start, long end, long rxBytes,
+ long rxPackets, long txBytes, long txPackets, long operations) {
+ final NetworkStatsHistory.Entry entry = stats.getValues(start, end, null);
+ assertEquals("unexpected rxBytes", rxBytes, entry.rxBytes);
+ assertEquals("unexpected rxPackets", rxPackets, entry.rxPackets);
+ assertEquals("unexpected txBytes", txBytes, entry.txBytes);
+ assertEquals("unexpected txPackets", txPackets, entry.txPackets);
+ assertEquals("unexpected operations", operations, entry.operations);
+ }
}
diff --git a/services/java/com/android/server/NetworkManagementService.java b/services/java/com/android/server/NetworkManagementService.java
index a59b6c07f356..30de385f305a 100644
--- a/services/java/com/android/server/NetworkManagementService.java
+++ b/services/java/com/android/server/NetworkManagementService.java
@@ -1231,6 +1231,13 @@ class NetworkManagementService extends INetworkManagementService.Stub {
}
}
+ @Override
+ public boolean isBandwidthControlEnabled() {
+ mContext.enforceCallingOrSelfPermission(MANAGE_NETWORK_POLICY, TAG);
+ return mBandwidthControlEnabled;
+ }
+
+ @Override
public NetworkStats getNetworkStatsUidDetail(int uid) {
if (Binder.getCallingUid() != uid) {
mContext.enforceCallingOrSelfPermission(
diff --git a/services/java/com/android/server/net/NetworkStatsService.java b/services/java/com/android/server/net/NetworkStatsService.java
index 24188cab76b6..deca7a91cfa4 100644
--- a/services/java/com/android/server/net/NetworkStatsService.java
+++ b/services/java/com/android/server/net/NetworkStatsService.java
@@ -16,10 +16,10 @@
package com.android.server.net;
-import static android.Manifest.permission.CONNECTIVITY_INTERNAL;
import static android.Manifest.permission.ACCESS_NETWORK_STATE;
-import static android.Manifest.permission.MODIFY_NETWORK_ACCOUNTING;
+import static android.Manifest.permission.CONNECTIVITY_INTERNAL;
import static android.Manifest.permission.DUMP;
+import static android.Manifest.permission.MODIFY_NETWORK_ACCOUNTING;
import static android.Manifest.permission.READ_NETWORK_USAGE_HISTORY;
import static android.content.Intent.ACTION_SHUTDOWN;
import static android.content.Intent.ACTION_UID_REMOVED;
@@ -68,7 +68,6 @@ import android.os.RemoteException;
import android.os.SystemClock;
import android.provider.Settings;
import android.telephony.TelephonyManager;
-import android.util.Log;
import android.util.LongSparseArray;
import android.util.NtpTrustedTime;
import android.util.Slog;
@@ -282,13 +281,13 @@ public class NetworkStatsService extends INetworkStatsService.Stub {
}
@Override
- public NetworkStatsHistory getHistoryForNetwork(NetworkTemplate template) {
+ public NetworkStatsHistory getHistoryForNetwork(NetworkTemplate template, int fields) {
mContext.enforceCallingOrSelfPermission(READ_NETWORK_USAGE_HISTORY, TAG);
synchronized (mStatsLock) {
// combine all interfaces that match template
final NetworkStatsHistory combined = new NetworkStatsHistory(
- mSettings.getNetworkBucketDuration(), estimateNetworkBuckets());
+ mSettings.getNetworkBucketDuration(), estimateNetworkBuckets(), fields);
for (NetworkIdentitySet ident : mNetworkStats.keySet()) {
if (templateMatches(template, ident)) {
final NetworkStatsHistory history = mNetworkStats.get(ident);
@@ -302,7 +301,8 @@ public class NetworkStatsService extends INetworkStatsService.Stub {
}
@Override
- public NetworkStatsHistory getHistoryForUid(NetworkTemplate template, int uid, int tag) {
+ public NetworkStatsHistory getHistoryForUid(
+ NetworkTemplate template, int uid, int tag, int fields) {
mContext.enforceCallingOrSelfPermission(READ_NETWORK_USAGE_HISTORY, TAG);
synchronized (mStatsLock) {
@@ -311,7 +311,7 @@ public class NetworkStatsService extends INetworkStatsService.Stub {
// combine all interfaces that match template
final NetworkStatsHistory combined = new NetworkStatsHistory(
- mSettings.getUidBucketDuration(), estimateUidBuckets());
+ mSettings.getUidBucketDuration(), estimateUidBuckets(), fields);
for (NetworkIdentitySet ident : mUidStats.keySet()) {
if (templateMatches(template, ident)) {
final NetworkStatsHistory history = mUidStats.get(ident).get(packed);
@@ -596,7 +596,7 @@ public class NetworkStatsService extends INetworkStatsService.Stub {
// decide if enough has changed to trigger persist
final NetworkStats persistDelta = computeStatsDelta(
- mLastPersistNetworkSnapshot, networkSnapshot);
+ mLastPersistNetworkSnapshot, networkSnapshot, true);
final long persistThreshold = mSettings.getPersistThreshold();
NetworkStats.Entry entry = null;
@@ -626,7 +626,7 @@ public class NetworkStatsService extends INetworkStatsService.Stub {
private void performNetworkPollLocked(NetworkStats networkSnapshot, long currentTime) {
final HashSet<String> unknownIface = Sets.newHashSet();
- final NetworkStats delta = computeStatsDelta(mLastNetworkSnapshot, networkSnapshot);
+ final NetworkStats delta = computeStatsDelta(mLastNetworkSnapshot, networkSnapshot, false);
final long timeStart = currentTime - delta.getElapsedRealtime();
NetworkStats.Entry entry = null;
@@ -661,9 +661,9 @@ public class NetworkStatsService extends INetworkStatsService.Stub {
private void performUidPollLocked(NetworkStats uidSnapshot, long currentTime) {
ensureUidStatsLoadedLocked();
- final NetworkStats delta = computeStatsDelta(mLastUidSnapshot, uidSnapshot);
+ final NetworkStats delta = computeStatsDelta(mLastUidSnapshot, uidSnapshot, false);
final NetworkStats operationsDelta = computeStatsDelta(
- mLastOperationsSnapshot, mOperations);
+ mLastOperationsSnapshot, mOperations, false);
final long timeStart = currentTime - delta.getElapsedRealtime();
NetworkStats.Entry entry = null;
@@ -932,6 +932,7 @@ public class NetworkStatsService extends INetworkStatsService.Stub {
out.flush();
mNetworkFile.finishWrite(fos);
} catch (IOException e) {
+ Slog.w(TAG, "problem writing stats: ", e);
if (fos != null) {
mNetworkFile.failWrite(fos);
}
@@ -978,6 +979,7 @@ public class NetworkStatsService extends INetworkStatsService.Stub {
out.flush();
mUidFile.finishWrite(fos);
} catch (IOException e) {
+ Slog.w(TAG, "problem writing stats: ", e);
if (fos != null) {
mUidFile.failWrite(fos);
}
@@ -1052,15 +1054,20 @@ public class NetworkStatsService extends INetworkStatsService.Stub {
*/
@Deprecated
private void generateRandomLocked() {
- long networkEnd = System.currentTimeMillis();
- long networkStart = networkEnd - mSettings.getNetworkMaxHistory();
- long networkRx = 3 * GB_IN_BYTES;
- long networkTx = 2 * GB_IN_BYTES;
-
- long uidEnd = System.currentTimeMillis();
- long uidStart = uidEnd - mSettings.getUidMaxHistory();
- long uidRx = 500 * MB_IN_BYTES;
- long uidTx = 100 * MB_IN_BYTES;
+ final long NET_END = System.currentTimeMillis();
+ final long NET_START = NET_END - mSettings.getNetworkMaxHistory();
+ final long NET_RX_BYTES = 3 * GB_IN_BYTES;
+ final long NET_RX_PACKETS = NET_RX_BYTES / 1024;
+ final long NET_TX_BYTES = 2 * GB_IN_BYTES;
+ final long NET_TX_PACKETS = NET_TX_BYTES / 1024;
+
+ final long UID_END = System.currentTimeMillis();
+ final long UID_START = UID_END - mSettings.getUidMaxHistory();
+ final long UID_RX_BYTES = 500 * MB_IN_BYTES;
+ final long UID_RX_PACKETS = UID_RX_BYTES / 1024;
+ final long UID_TX_BYTES = 100 * MB_IN_BYTES;
+ final long UID_TX_PACKETS = UID_TX_BYTES / 1024;
+ final long UID_OPERATIONS = UID_RX_BYTES / 2048;
final List<ApplicationInfo> installedApps = mContext
.getPackageManager().getInstalledApplications(0);
@@ -1068,13 +1075,13 @@ public class NetworkStatsService extends INetworkStatsService.Stub {
mNetworkStats.clear();
mUidStats.clear();
for (NetworkIdentitySet ident : mActiveIfaces.values()) {
- findOrCreateNetworkStatsLocked(ident).generateRandom(
- networkStart, networkEnd, networkRx, networkTx);
+ findOrCreateNetworkStatsLocked(ident).generateRandom(NET_START, NET_END, NET_RX_BYTES,
+ NET_RX_PACKETS, NET_TX_BYTES, NET_TX_PACKETS, 0L);
for (ApplicationInfo info : installedApps) {
final int uid = info.uid;
- findOrCreateUidStatsLocked(ident, uid, TAG_NONE).generateRandom(
- uidStart, uidEnd, uidRx, uidTx);
+ findOrCreateUidStatsLocked(ident, uid, TAG_NONE).generateRandom(UID_START, UID_END,
+ UID_RX_BYTES, UID_RX_PACKETS, UID_TX_BYTES, UID_TX_PACKETS, UID_OPERATIONS);
}
}
}
@@ -1083,9 +1090,13 @@ public class NetworkStatsService extends INetworkStatsService.Stub {
* Return the delta between two {@link NetworkStats} snapshots, where {@code
* before} can be {@code null}.
*/
- private static NetworkStats computeStatsDelta(NetworkStats before, NetworkStats current) {
+ private static NetworkStats computeStatsDelta(
+ NetworkStats before, NetworkStats current, boolean collectStale) {
if (before != null) {
return current.subtractClamped(before);
+ } else if (collectStale) {
+ // caller is okay collecting stale stats for first call.
+ return current;
} else {
// this is first snapshot; to prevent from double-counting we only
// observe traffic occuring between known snapshots.
diff --git a/services/tests/servicestests/src/com/android/server/NetworkStatsServiceTest.java b/services/tests/servicestests/src/com/android/server/NetworkStatsServiceTest.java
index cf69fd546552..8eb9cc305397 100644
--- a/services/tests/servicestests/src/com/android/server/NetworkStatsServiceTest.java
+++ b/services/tests/servicestests/src/com/android/server/NetworkStatsServiceTest.java
@@ -25,6 +25,7 @@ import static android.net.ConnectivityManager.TYPE_WIMAX;
import static android.net.NetworkStats.IFACE_ALL;
import static android.net.NetworkStats.TAG_NONE;
import static android.net.NetworkStats.UID_ALL;
+import static android.net.NetworkStatsHistory.FIELD_ALL;
import static android.net.NetworkTemplate.buildTemplateMobileAll;
import static android.net.NetworkTemplate.buildTemplateWifi;
import static android.net.TrafficStats.UID_REMOVED;
@@ -302,7 +303,7 @@ public class NetworkStatsServiceTest extends AndroidTestCase {
mServiceContext.sendBroadcast(new Intent(ACTION_NETWORK_STATS_POLL));
// verify service recorded history
- history = mService.getHistoryForNetwork(sTemplateWifi);
+ history = mService.getHistoryForNetwork(sTemplateWifi, FIELD_ALL);
assertValues(history, Long.MIN_VALUE, Long.MAX_VALUE, 512L, 4L, 512L, 4L, 0);
assertEquals(HOUR_IN_MILLIS, history.getBucketDuration());
assertEquals(2, history.size());
@@ -319,7 +320,7 @@ public class NetworkStatsServiceTest extends AndroidTestCase {
mServiceContext.sendBroadcast(new Intent(ACTION_NETWORK_STATS_POLL));
// verify identical stats, but spread across 4 buckets now
- history = mService.getHistoryForNetwork(sTemplateWifi);
+ history = mService.getHistoryForNetwork(sTemplateWifi, FIELD_ALL);
assertValues(history, Long.MIN_VALUE, Long.MAX_VALUE, 512L, 4L, 512L, 4L, 0);
assertEquals(30 * MINUTE_IN_MILLIS, history.getBucketDuration());
assertEquals(4, history.size());
@@ -631,14 +632,15 @@ public class NetworkStatsServiceTest extends AndroidTestCase {
private void assertNetworkTotal(NetworkTemplate template, long rxBytes, long rxPackets,
long txBytes, long txPackets, int operations) {
- final NetworkStatsHistory history = mService.getHistoryForNetwork(template);
+ final NetworkStatsHistory history = mService.getHistoryForNetwork(template, FIELD_ALL);
assertValues(history, Long.MIN_VALUE, Long.MAX_VALUE, rxBytes, rxPackets, txBytes,
txPackets, operations);
}
private void assertUidTotal(NetworkTemplate template, int uid, long rxBytes, long rxPackets,
long txBytes, long txPackets, int operations) {
- final NetworkStatsHistory history = mService.getHistoryForUid(template, uid, TAG_NONE);
+ final NetworkStatsHistory history = mService.getHistoryForUid(
+ template, uid, TAG_NONE, FIELD_ALL);
assertValues(history, Long.MIN_VALUE, Long.MAX_VALUE, rxBytes, rxPackets, txBytes,
txPackets, operations);
}