Ping connections with the fast rate until each connection is pinged at least three times.

webrtc/p2p/base/port.cc

 /*
  *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 1148 matching lines @@
 }
 
 void Connection::Ping(int64_t now) {
   last_ping_sent_ = now;
   ConnectionRequest *req = new ConnectionRequest(this);
   pings_since_last_response_.push_back(SentPing(req->id(), now));
   LOG_J(LS_VERBOSE, this) << "Sending STUN ping "
                           << ", id=" << rtc::hex_encode(req->id());
   requests_.Send(req);
   state_ = STATE_INPROGRESS;
+  num_pings_sent_++;
 }
 
 void Connection::ReceivedPing() {
   set_receiving(true);
   last_ping_received_ = rtc::TimeMillis();
 }
 
 void Connection::ReceivedPingResponse() {
   // We've already validated that this is a STUN binding response with
   // the correct local and remote username for this connection.
@@ skipping 198 matching lines @@
       remote_candidate_.address() == new_candidate.address() &&
       remote_candidate_.username() == new_candidate.username() &&
       remote_candidate_.password() == new_candidate.password() &&
       remote_candidate_.generation() == new_candidate.generation()) {
     remote_candidate_ = new_candidate;
   }
 }
 
 void Connection::OnMessage(rtc::Message *pmsg) {
   ASSERT(pmsg->message_id == MSG_DELETE);
-  LOG_J(LS_INFO, this) << "Connection deleted";
+  LOG_J(LS_INFO, this) << "Connection deleted with number of pings sent: "
+                       << num_pings_sent_;
   SignalDestroyed(this);
   delete this;
 }
 
 int64_t Connection::last_received() const {
   return std::max(last_data_received_,
              std::max(last_ping_received_, last_ping_response_received_));
 }
 
 size_t Connection::recv_bytes_second() {
@@ skipping 105 matching lines @@
     ASSERT(sent < 0);
     error_ = port_->GetError();
     sent_packets_discarded_++;
   } else {
     send_rate_tracker_.AddSamples(sent);
   }
   return sent;
 }
 
 }  // namespace cricket