diff options
Diffstat (limited to 'core/java')
-rw-r--r-- | core/java/android/net/TrafficStats.java | 64 |
1 files changed, 60 insertions, 4 deletions
diff --git a/core/java/android/net/TrafficStats.java b/core/java/android/net/TrafficStats.java index eca06c5..7ee7a81 100644 --- a/core/java/android/net/TrafficStats.java +++ b/core/java/android/net/TrafficStats.java @@ -16,11 +16,10 @@ package android.net; -import android.util.Log; +import dalvik.system.BlockGuard; -import java.io.File; -import java.io.RandomAccessFile; -import java.io.IOException; +import java.net.Socket; +import java.net.SocketException; /** * Class that provides network traffic statistics. These statistics include @@ -37,6 +36,63 @@ public class TrafficStats { public final static int UNSUPPORTED = -1; /** + * Set active tag to use when accounting {@link Socket} traffic originating + * from the current thread. Only one active tag per thread is supported. + * <p> + * Changes only take effect during subsequent calls to + * {@link #tagSocket(Socket)}. + */ + public static void setThreadStatsTag(String tag) { + BlockGuard.setThreadSocketStatsTag(tag); + } + + public static void clearThreadStatsTag() { + BlockGuard.setThreadSocketStatsTag(null); + } + + /** + * Set specific UID to use when accounting {@link Socket} traffic + * originating from the current thread. Designed for use when performing an + * operation on behalf of another application. + * <p> + * Changes only take effect during subsequent calls to + * {@link #tagSocket(Socket)}. + * <p> + * To take effect, caller must hold + * {@link android.Manifest.permission#UPDATE_DEVICE_STATS} permission. + * + * {@hide} + */ + public static void setThreadStatsUid(int uid) { + BlockGuard.setThreadSocketStatsUid(uid); + } + + /** {@hide} */ + public static void clearThreadStatsUid() { + BlockGuard.setThreadSocketStatsUid(-1); + } + + /** + * Tag the given {@link Socket} with any statistics parameters active for + * the current thread. Subsequent calls always replace any existing + * parameters. When finished, call {@link #untagSocket(Socket)} to remove + * statistics parameters. + * + * @see #setThreadStatsTag(String) + * @see #setThreadStatsUid(int) + */ + public static void tagSocket(Socket socket) throws SocketException { + BlockGuard.tagSocketFd(socket.getFileDescriptor$()); + } + + /** + * Remove any statistics parameters from the given {@link Socket}. + */ + public static void untagSocket(Socket socket) throws SocketException { + BlockGuard.untagSocketFd(socket.getFileDescriptor$()); + } + + /** * Get the total number of packets transmitted through the mobile interface. * * @return number of packets. If the statistics are not supported by this device, |