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      1 /*
      2  *  Copyright 2004 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 #include <sstream>
     12 #include "webrtc/p2p/base/common.h"
     13 #include "webrtc/p2p/base/transportchannel.h"
     14 
     15 namespace cricket {
     16 
     17 std::string TransportChannel::ToString() const {
     18   const char RECEIVING_ABBREV[2] = { '_', 'R' };
     19   const char WRITABLE_ABBREV[2] = { '_', 'W' };
     20   std::stringstream ss;
     21   ss << "Channel[" << transport_name_ << "|" << component_ << "|"
     22      << RECEIVING_ABBREV[receiving_] << WRITABLE_ABBREV[writable_] << "]";
     23   return ss.str();
     24 }
     25 
     26 void TransportChannel::set_receiving(bool receiving) {
     27   if (receiving_ == receiving) {
     28     return;
     29   }
     30   receiving_ = receiving;
     31   SignalReceivingState(this);
     32 }
     33 
     34 void TransportChannel::set_writable(bool writable) {
     35   if (writable_ == writable) {
     36     return;
     37   }
     38   LOG_J(LS_VERBOSE, this) << "set_writable from:" << writable_ << " to "
     39                           << writable;
     40   writable_ = writable;
     41   if (writable_) {
     42     SignalReadyToSend(this);
     43   }
     44   SignalWritableState(this);
     45 }
     46 
     47 void TransportChannel::set_dtls_state(DtlsTransportState state) {
     48   if (dtls_state_ == state) {
     49     return;
     50   }
     51   LOG_J(LS_VERBOSE, this) << "set_dtls_state from:" << dtls_state_ << " to "
     52                           << state;
     53   dtls_state_ = state;
     54   SignalDtlsState(this, state);
     55 }
     56 
     57 bool TransportChannel::SetSrtpCryptoSuites(const std::vector<int>& ciphers) {
     58   return false;
     59 }
     60 
     61 // TODO(guoweis): Remove this function once everything is moved away.
     62 bool TransportChannel::SetSrtpCiphers(const std::vector<std::string>& ciphers) {
     63   std::vector<int> crypto_suites;
     64   for (const auto cipher : ciphers) {
     65     crypto_suites.push_back(rtc::SrtpCryptoSuiteFromName(cipher));
     66   }
     67   return SetSrtpCryptoSuites(crypto_suites);
     68 }
     69 
     70 }  // namespace cricket
     71