tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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RtcEventLog.java (2236B)

      1 /*
      2 *  Copyright 2018 The WebRTC project authors. All Rights Reserved.
      3 *
      4 *  Use of this source code is governed by a BSD-style license
      5 *  that can be found in the LICENSE file in the root of the source
      6 *  tree. An additional intellectual property rights grant can be found
      7 *  in the file PATENTS.  All contributing project authors may
      8 *  be found in the AUTHORS file in the root of the source tree.
      9 */
     10 
     11 package org.appspot.apprtc;
     12 
     13 import android.os.ParcelFileDescriptor;
     14 import android.util.Log;
     15 import java.io.File;
     16 import java.io.IOException;
     17 import org.webrtc.PeerConnection;
     18 
     19 public class RtcEventLog {
     20  private static final String TAG = "RtcEventLog";
     21  private static final int OUTPUT_FILE_MAX_BYTES = 10_000_000;
     22  private final PeerConnection peerConnection;
     23  private RtcEventLogState state = RtcEventLogState.INACTIVE;
     24 
     25  enum RtcEventLogState {
     26    INACTIVE,
     27    STARTED,
     28    STOPPED,
     29  }
     30 
     31  public RtcEventLog(PeerConnection peerConnection) {
     32    if (peerConnection == null) {
     33      throw new NullPointerException("The peer connection is null.");
     34    }
     35    this.peerConnection = peerConnection;
     36  }
     37 
     38  public void start(final File outputFile) {
     39    if (state == RtcEventLogState.STARTED) {
     40      Log.e(TAG, "RtcEventLog has already started.");
     41      return;
     42    }
     43    final ParcelFileDescriptor fileDescriptor;
     44    try {
     45      fileDescriptor = ParcelFileDescriptor.open(outputFile,
     46          ParcelFileDescriptor.MODE_READ_WRITE | ParcelFileDescriptor.MODE_CREATE
     47              | ParcelFileDescriptor.MODE_TRUNCATE);
     48    } catch (IOException e) {
     49      Log.e(TAG, "Failed to create a new file", e);
     50      return;
     51    }
     52 
     53    // Passes ownership of the file to WebRTC.
     54    boolean success =
     55        peerConnection.startRtcEventLog(fileDescriptor.detachFd(), OUTPUT_FILE_MAX_BYTES);
     56    if (!success) {
     57      Log.e(TAG, "Failed to start RTC event log.");
     58      return;
     59    }
     60    state = RtcEventLogState.STARTED;
     61    Log.d(TAG, "RtcEventLog started.");
     62  }
     63 
     64  public void stop() {
     65    if (state != RtcEventLogState.STARTED) {
     66      Log.e(TAG, "RtcEventLog was not started.");
     67      return;
     68    }
     69    peerConnection.stopRtcEventLog();
     70    state = RtcEventLogState.STOPPED;
     71    Log.d(TAG, "RtcEventLog stopped.");
     72  }
     73 }