content/renderer/media/webrtc/stun_field_trial.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_RENDERER_MEDIA_WEBRTC_STUN_FIELD_TRIAL_H_
   6 #define CONTENT_RENDERER_MEDIA_WEBRTC_STUN_FIELD_TRIAL_H_
   7
   8 #include <string>
   9
  10 #include "base/memory/scoped_ptr.h"
  11 #include "content/common/content_export.h"
  12 #include "third_party/webrtc/base/network.h"
  13
  14 namespace rtc {
  15 class PacketSocketFactory;
  16 class SocketAddress;
  17 }  // namespace rtc
  18
  19 namespace stunprober {
  20 class StunProber;
  21 }  // namespace stunprober
  22
  23 namespace content {
  24
  25 // Wait for 30 seconds to avoid high CPU usage during browser start-up which
  26 // might affect the accuracy of the trial. The trial wakes up the browser every
  27 // 1 ms for no more than 3 seconds to see if time has passed for sending next
  28 // stun probe.
  29 static const int kExperimentStartDelayMs = 30000;
  30
  31 // This will use |factory| to create sockets, send stun binding requests with
  32 // various intervals as determined by |params|, observed the success rate and
  33 // latency of the stun responses and report through UMA.
  34 scoped_ptr<stunprober::StunProber> StartStunProbeTrial(
  35     const rtc::NetworkManager::NetworkList& networks,
  36     const std::string& params,
  37     rtc::PacketSocketFactory* factory);
  38
  39 // Parsing function to decode the '/' separated parameter string |params|.
  40 CONTENT_EXPORT bool ParseStunProbeParameters(
  41     const std::string& params,
  42     int* requests_per_ip,
  43     int* interval_ms,
  44     int* shared_socket_mode,
  45     std::vector<rtc::SocketAddress>* servers);
  46
  47 }  // namespace content
  48
  49 #endif  // CONTENT_RENDERER_MEDIA_WEBRTC_STUN_FIELD_TRIAL_H_