Examples with NetworkStats android.net.NetworkStats used on opensource projects

Example 96 with NetworkStats

use of android.net.NetworkStats in project android_frameworks_base by ResurrectionRemix.

the class BatteryStatsImpl method getNetworkStatsDeltaLocked.

/**
     * Retrieves the delta of network stats for the given network ifaces. Uses networkStatsBuffer
     * as a buffer of NetworkStats objects to cycle through when computing deltas.
     */
private NetworkStats getNetworkStatsDeltaLocked(String[] ifaces, NetworkStats[] networkStatsBuffer) throws IOException {
    if (!SystemProperties.getBoolean(NetworkManagementSocketTagger.PROP_QTAGUID_ENABLED, false)) {
        return null;
    }
    final NetworkStats stats = mNetworkStatsFactory.readNetworkStatsDetail(NetworkStats.UID_ALL, ifaces, NetworkStats.TAG_NONE, networkStatsBuffer[NETWORK_STATS_NEXT]);
    networkStatsBuffer[NETWORK_STATS_DELTA] = NetworkStats.subtract(stats, networkStatsBuffer[NETWORK_STATS_LAST], null, null, networkStatsBuffer[NETWORK_STATS_DELTA]);
    networkStatsBuffer[NETWORK_STATS_NEXT] = networkStatsBuffer[NETWORK_STATS_LAST];
    networkStatsBuffer[NETWORK_STATS_LAST] = stats;
    return networkStatsBuffer[NETWORK_STATS_DELTA];
}

Example 97 with NetworkStats

use of android.net.NetworkStats in project android_frameworks_base by ResurrectionRemix.

the class NetworkStatsFactory method readNetworkStatsSummaryDev.

/**
     * Parse and return interface-level summary {@link NetworkStats} measured
     * using {@code /proc/net/dev} style hooks, which may include non IP layer
     * traffic. Values monotonically increase since device boot, and may include
     * details about inactive interfaces.
     *
     * @throws IllegalStateException when problem parsing stats.
     */
public NetworkStats readNetworkStatsSummaryDev() throws IOException {
    final StrictMode.ThreadPolicy savedPolicy = StrictMode.allowThreadDiskReads();
    final NetworkStats stats = new NetworkStats(SystemClock.elapsedRealtime(), 6);
    final NetworkStats.Entry entry = new NetworkStats.Entry();
    ProcFileReader reader = null;
    try {
        reader = new ProcFileReader(new FileInputStream(mStatsXtIfaceAll));
        while (reader.hasMoreData()) {
            entry.iface = reader.nextString();
            entry.uid = UID_ALL;
            entry.set = SET_ALL;
            entry.tag = TAG_NONE;
            final boolean active = reader.nextInt() != 0;
            // always include snapshot values
            entry.rxBytes = reader.nextLong();
            entry.rxPackets = reader.nextLong();
            entry.txBytes = reader.nextLong();
            entry.txPackets = reader.nextLong();
            // fold in active numbers, but only when active
            if (active) {
                entry.rxBytes += reader.nextLong();
                entry.rxPackets += reader.nextLong();
                entry.txBytes += reader.nextLong();
                entry.txPackets += reader.nextLong();
            }
            stats.addValues(entry);
            reader.finishLine();
        }
    } catch (NullPointerException e) {
        throw new ProtocolException("problem parsing stats", e);
    } catch (NumberFormatException e) {
        throw new ProtocolException("problem parsing stats", e);
    } finally {
        IoUtils.closeQuietly(reader);
        StrictMode.setThreadPolicy(savedPolicy);
    }
    return stats;
}

Example 98 with NetworkStats

use of android.net.NetworkStats in project android_frameworks_base by ResurrectionRemix.

the class NetworkStatsFactory method readNetworkStatsDetailInternal.

private NetworkStats readNetworkStatsDetailInternal(int limitUid, String[] limitIfaces, int limitTag, NetworkStats lastStats) throws IOException {
    if (USE_NATIVE_PARSING) {
        final NetworkStats stats;
        if (lastStats != null) {
            stats = lastStats;
            stats.setElapsedRealtime(SystemClock.elapsedRealtime());
        } else {
            stats = new NetworkStats(SystemClock.elapsedRealtime(), -1);
        }
        if (nativeReadNetworkStatsDetail(stats, mStatsXtUid.getAbsolutePath(), limitUid, limitIfaces, limitTag) != 0) {
            throw new IOException("Failed to parse network stats");
        }
        if (SANITY_CHECK_NATIVE) {
            final NetworkStats javaStats = javaReadNetworkStatsDetail(mStatsXtUid, limitUid, limitIfaces, limitTag);
            assertEquals(javaStats, stats);
        }
        return stats;
    } else {
        return javaReadNetworkStatsDetail(mStatsXtUid, limitUid, limitIfaces, limitTag);
    }
}

Example 99 with NetworkStats

use of android.net.NetworkStats in project android_frameworks_base by ResurrectionRemix.

the class NetworkStatsFactory method readNetworkStatsDetail.

public NetworkStats readNetworkStatsDetail(int limitUid, String[] limitIfaces, int limitTag, NetworkStats lastStats) throws IOException {
    final NetworkStats stats = readNetworkStatsDetailInternal(limitUid, limitIfaces, limitTag, lastStats);
    synchronized (sStackedIfaces) {
        // Sigh, xt_qtaguid ends up double-counting tx traffic going through
        // clatd interfaces, so we need to subtract it here.
        final int size = sStackedIfaces.size();
        for (int i = 0; i < size; i++) {
            final String stackedIface = sStackedIfaces.keyAt(i);
            final String baseIface = sStackedIfaces.valueAt(i);
            // Count up the tx traffic and subtract from root UID on the
            // base interface.
            NetworkStats.Entry adjust = new NetworkStats.Entry(baseIface, 0, 0, 0, 0L, 0L, 0L, 0L, 0L);
            NetworkStats.Entry entry = null;
            for (int j = 0; j < stats.size(); j++) {
                entry = stats.getValues(j, entry);
                if (Objects.equals(entry.iface, stackedIface)) {
                    adjust.txBytes -= entry.txBytes;
                    adjust.txPackets -= entry.txPackets;
                }
            }
            stats.combineValues(adjust);
        }
    }
    // Double sigh, all rx traffic on clat needs to be tweaked to
    // account for the dropped IPv6 header size post-unwrap.
    NetworkStats.Entry entry = null;
    for (int i = 0; i < stats.size(); i++) {
        entry = stats.getValues(i, entry);
        if (entry.iface != null && entry.iface.startsWith("clat")) {
            // Delta between IPv4 header (20b) and IPv6 header (40b)
            entry.rxBytes = entry.rxPackets * 20;
            entry.rxPackets = 0;
            entry.txBytes = 0;
            entry.txPackets = 0;
            stats.combineValues(entry);
        }
    }
    return stats;
}

Example 100 with NetworkStats

use of android.net.NetworkStats in project android_frameworks_base by ResurrectionRemix.

the class NetworkStatsFactory method readNetworkStatsSummaryXt.

/**
     * Parse and return interface-level summary {@link NetworkStats}. Designed
     * to return only IP layer traffic. Values monotonically increase since
     * device boot, and may include details about inactive interfaces.
     *
     * @throws IllegalStateException when problem parsing stats.
     */
public NetworkStats readNetworkStatsSummaryXt() throws IOException {
    final StrictMode.ThreadPolicy savedPolicy = StrictMode.allowThreadDiskReads();
    // return null when kernel doesn't support
    if (!mStatsXtIfaceFmt.exists())
        return null;
    final NetworkStats stats = new NetworkStats(SystemClock.elapsedRealtime(), 6);
    final NetworkStats.Entry entry = new NetworkStats.Entry();
    ProcFileReader reader = null;
    try {
        // open and consume header line
        reader = new ProcFileReader(new FileInputStream(mStatsXtIfaceFmt));
        reader.finishLine();
        while (reader.hasMoreData()) {
            entry.iface = reader.nextString();
            entry.uid = UID_ALL;
            entry.set = SET_ALL;
            entry.tag = TAG_NONE;
            entry.rxBytes = reader.nextLong();
            entry.rxPackets = reader.nextLong();
            entry.txBytes = reader.nextLong();
            entry.txPackets = reader.nextLong();
            stats.addValues(entry);
            reader.finishLine();
        }
    } catch (NullPointerException e) {
        throw new ProtocolException("problem parsing stats", e);
    } catch (NumberFormatException e) {
        throw new ProtocolException("problem parsing stats", e);
    } finally {
        IoUtils.closeQuietly(reader);
        StrictMode.setThreadPolicy(savedPolicy);
    }
    return stats;
}