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-rw-r--r--dom/media/webrtc/transport/nricemediastream.cpp709
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diff --git a/dom/media/webrtc/transport/nricemediastream.cpp b/dom/media/webrtc/transport/nricemediastream.cpp
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+++ b/dom/media/webrtc/transport/nricemediastream.cpp
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// Original author: ekr@rtfm.com
+
+// Some of this code is cut-and-pasted from nICEr. Copyright is:
+
+/*
+Copyright (c) 2007, Adobe Systems, Incorporated
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+* Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+* Neither the name of Adobe Systems, Network Resonance nor the names of its
+ contributors may be used to endorse or promote products derived from
+ this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <string>
+#include <vector>
+
+#include "logging.h"
+#include "nsError.h"
+#include "nsThreadUtils.h"
+
+// nICEr includes
+extern "C" {
+#include "nr_api.h"
+#include "transport_addr.h"
+#include "nr_socket.h"
+#include "ice_ctx.h"
+#include "ice_candidate.h"
+#include "ice_handler.h"
+}
+
+// Local includes
+#include "nricectx.h"
+#include "nricemediastream.h"
+
+namespace mozilla {
+
+MOZ_MTLOG_MODULE("mtransport")
+
+static bool ToNrIceAddr(nr_transport_addr& addr, NrIceAddr* out) {
+ int r;
+ char addrstring[INET6_ADDRSTRLEN + 1];
+
+ r = nr_transport_addr_get_addrstring(&addr, addrstring, sizeof(addrstring));
+ if (r) return false;
+ out->host = addrstring;
+
+ int port;
+ r = nr_transport_addr_get_port(&addr, &port);
+ if (r) return false;
+
+ out->port = port;
+
+ switch (addr.protocol) {
+ case IPPROTO_TCP:
+ if (addr.tls) {
+ out->transport = kNrIceTransportTls;
+ } else {
+ out->transport = kNrIceTransportTcp;
+ }
+ break;
+ case IPPROTO_UDP:
+ out->transport = kNrIceTransportUdp;
+ break;
+ default:
+ MOZ_CRASH();
+ return false;
+ }
+
+ return true;
+}
+
+static bool ToNrIceCandidate(const nr_ice_candidate& candc,
+ NrIceCandidate* out) {
+ MOZ_ASSERT(out);
+ int r;
+ // Const-cast because the internal nICEr code isn't const-correct.
+ nr_ice_candidate* cand = const_cast<nr_ice_candidate*>(&candc);
+
+ if (!ToNrIceAddr(cand->addr, &out->cand_addr)) return false;
+
+ if (cand->mdns_addr) {
+ out->mdns_addr = cand->mdns_addr;
+ }
+
+ if (cand->isock) {
+ nr_transport_addr addr;
+ r = nr_socket_getaddr(cand->isock->sock, &addr);
+ if (r) return false;
+
+ out->is_proxied = addr.is_proxied;
+
+ if (!ToNrIceAddr(addr, &out->local_addr)) return false;
+ }
+
+ NrIceCandidate::Type type;
+
+ switch (cand->type) {
+ case HOST:
+ type = NrIceCandidate::ICE_HOST;
+ break;
+ case SERVER_REFLEXIVE:
+ type = NrIceCandidate::ICE_SERVER_REFLEXIVE;
+ break;
+ case PEER_REFLEXIVE:
+ type = NrIceCandidate::ICE_PEER_REFLEXIVE;
+ break;
+ case RELAYED:
+ type = NrIceCandidate::ICE_RELAYED;
+ break;
+ default:
+ return false;
+ }
+
+ NrIceCandidate::TcpType tcp_type;
+ switch (cand->tcp_type) {
+ case TCP_TYPE_ACTIVE:
+ tcp_type = NrIceCandidate::ICE_ACTIVE;
+ break;
+ case TCP_TYPE_PASSIVE:
+ tcp_type = NrIceCandidate::ICE_PASSIVE;
+ break;
+ case TCP_TYPE_SO:
+ tcp_type = NrIceCandidate::ICE_SO;
+ break;
+ default:
+ tcp_type = NrIceCandidate::ICE_NONE;
+ break;
+ }
+
+ out->type = type;
+ out->tcp_type = tcp_type;
+ out->codeword = candc.codeword;
+ out->label = candc.label;
+ out->trickled = candc.trickled;
+ out->priority = candc.priority;
+ return true;
+}
+
+// Make an NrIceCandidate from the candidate |cand|.
+// This is not a member fxn because we want to hide the
+// defn of nr_ice_candidate but we pass by reference.
+static UniquePtr<NrIceCandidate> MakeNrIceCandidate(
+ const nr_ice_candidate& candc) {
+ UniquePtr<NrIceCandidate> out(new NrIceCandidate());
+
+ if (!ToNrIceCandidate(candc, out.get())) {
+ return nullptr;
+ }
+ return out;
+}
+
+static bool Matches(const nr_ice_media_stream* stream, const std::string& ufrag,
+ const std::string& pwd) {
+ return stream && (stream->ufrag == ufrag) && (stream->pwd == pwd);
+}
+
+NrIceMediaStream::NrIceMediaStream(NrIceCtx* ctx, const std::string& id,
+ const std::string& name, size_t components)
+ : state_(ICE_CONNECTING),
+ ctx_(ctx),
+ name_(name),
+ components_(components),
+ stream_(nullptr),
+ old_stream_(nullptr),
+ id_(id) {}
+
+NrIceMediaStream::~NrIceMediaStream() {
+ // We do not need to destroy anything. All major resources
+ // are attached to the ice ctx.
+}
+
+nsresult NrIceMediaStream::ConnectToPeer(
+ const std::string& ufrag, const std::string& pwd,
+ const std::vector<std::string>& attributes) {
+ MOZ_ASSERT(stream_);
+
+ if (Matches(old_stream_, ufrag, pwd)) {
+ // (We swap before we close so we never have stream_ == nullptr)
+ MOZ_MTLOG(ML_DEBUG,
+ "Rolling back to old stream ufrag=" << ufrag << " " << name_);
+ std::swap(stream_, old_stream_);
+ CloseStream(&old_stream_);
+ } else if (old_stream_) {
+ // Right now we wait for ICE to complete before closing the old stream.
+ // It might be worth it to close it sooner, but we don't want to close it
+ // right away.
+ MOZ_MTLOG(ML_DEBUG,
+ "ICE restart committed, marking old stream as obsolete, "
+ "beginning switchover to ufrag="
+ << ufrag << " " << name_);
+ nr_ice_media_stream_set_obsolete(old_stream_);
+ }
+
+ nr_ice_media_stream* peer_stream;
+ if (nr_ice_peer_ctx_find_pstream(ctx_->peer(), stream_, &peer_stream)) {
+ // No peer yet
+ std::vector<char*> attributes_in;
+ attributes_in.reserve(attributes.size());
+ for (auto& attribute : attributes) {
+ MOZ_MTLOG(ML_DEBUG, "Setting " << attribute << " on stream " << name_);
+ attributes_in.push_back(const_cast<char*>(attribute.c_str()));
+ }
+
+ // Still need to call nr_ice_ctx_parse_stream_attributes.
+ int r = nr_ice_peer_ctx_parse_stream_attributes(
+ ctx_->peer(), stream_,
+ attributes_in.empty() ? nullptr : &attributes_in[0],
+ attributes_in.size());
+ if (r) {
+ MOZ_MTLOG(ML_ERROR,
+ "Couldn't parse attributes for stream " << name_ << "'");
+ return NS_ERROR_FAILURE;
+ }
+ }
+
+ return NS_OK;
+}
+
+nsresult NrIceMediaStream::SetIceCredentials(const std::string& ufrag,
+ const std::string& pwd) {
+ if (Matches(stream_, ufrag, pwd)) {
+ return NS_OK;
+ }
+
+ if (Matches(old_stream_, ufrag, pwd)) {
+ return NS_OK;
+ }
+
+ MOZ_MTLOG(ML_DEBUG, "Setting ICE credentials for " << name_ << " - " << ufrag
+ << ":" << pwd);
+ CloseStream(&old_stream_);
+ old_stream_ = stream_;
+
+ std::string name(name_ + " - " + ufrag + ":" + pwd);
+
+ int r = nr_ice_add_media_stream(ctx_->ctx(), name.c_str(), ufrag.c_str(),
+ pwd.c_str(), components_, &stream_);
+ if (r) {
+ MOZ_MTLOG(ML_ERROR, "Couldn't create ICE media stream for '"
+ << name_ << "': error=" << r);
+ stream_ = old_stream_;
+ old_stream_ = nullptr;
+ return NS_ERROR_FAILURE;
+ }
+
+ state_ = ICE_CONNECTING;
+ return NS_OK;
+}
+
+// Parse trickle ICE candidate
+nsresult NrIceMediaStream::ParseTrickleCandidate(const std::string& candidate,
+ const std::string& ufrag,
+ const std::string& mdns_addr) {
+ nr_ice_media_stream* stream = GetStreamForRemoteUfrag(ufrag);
+ if (!stream) {
+ return NS_ERROR_FAILURE;
+ }
+
+ MOZ_MTLOG(ML_NOTICE, "NrIceCtx(" << ctx_->ctx()->label << ")/STREAM("
+ << name() << ") : parsing trickle candidate "
+ << candidate);
+
+ int r = nr_ice_peer_ctx_parse_trickle_candidate(
+ ctx_->peer(), stream, const_cast<char*>(candidate.c_str()),
+ mdns_addr.c_str());
+
+ if (r) {
+ if (r == R_ALREADY) {
+ MOZ_MTLOG(ML_INFO, "Trickle candidate is redundant for stream '"
+ << name_
+ << "' because it is completed: " << candidate);
+ } else if (r == R_REJECTED) {
+ MOZ_MTLOG(ML_INFO,
+ "Trickle candidate is ignored for stream '"
+ << name_
+ << "', probably because it is for an unused component"
+ << ": " << candidate);
+ } else {
+ MOZ_MTLOG(ML_ERROR, "Couldn't parse trickle candidate for stream '"
+ << name_ << "': " << candidate);
+ return NS_ERROR_FAILURE;
+ }
+ }
+
+ return NS_OK;
+}
+
+// Returns NS_ERROR_NOT_AVAILABLE if component is unpaired or disabled.
+nsresult NrIceMediaStream::GetActivePair(int component,
+ UniquePtr<NrIceCandidate>* localp,
+ UniquePtr<NrIceCandidate>* remotep) {
+ int r;
+ nr_ice_candidate* local_int;
+ nr_ice_candidate* remote_int;
+
+ if (!stream_) {
+ return NS_ERROR_NOT_AVAILABLE;
+ }
+
+ r = nr_ice_media_stream_get_active(ctx_->peer(), stream_, component,
+ &local_int, &remote_int);
+ // If result is R_REJECTED then component is unpaired or disabled.
+ if (r == R_REJECTED) return NS_ERROR_NOT_AVAILABLE;
+
+ if (r) return NS_ERROR_FAILURE;
+
+ UniquePtr<NrIceCandidate> local(MakeNrIceCandidate(*local_int));
+ if (!local) return NS_ERROR_FAILURE;
+
+ UniquePtr<NrIceCandidate> remote(MakeNrIceCandidate(*remote_int));
+ if (!remote) return NS_ERROR_FAILURE;
+
+ if (localp) *localp = std::move(local);
+ if (remotep) *remotep = std::move(remote);
+
+ return NS_OK;
+}
+
+nsresult NrIceMediaStream::GetCandidatePairs(
+ std::vector<NrIceCandidatePair>* out_pairs) const {
+ MOZ_ASSERT(out_pairs);
+ if (!stream_) {
+ return NS_ERROR_NOT_AVAILABLE;
+ }
+
+ // If we haven't at least started checking then there is nothing to report
+ if (ctx_->peer()->state != NR_ICE_PEER_STATE_PAIRED) {
+ return NS_OK;
+ }
+
+ // Get the check_list on the peer stream (this is where the check_list
+ // actually lives, not in stream_)
+ nr_ice_media_stream* peer_stream;
+ int r = nr_ice_peer_ctx_find_pstream(ctx_->peer(), stream_, &peer_stream);
+ if (r != 0) {
+ return NS_ERROR_FAILURE;
+ }
+
+ nr_ice_cand_pair *p1, *p2;
+ out_pairs->clear();
+
+ TAILQ_FOREACH(p1, &peer_stream->check_list, check_queue_entry) {
+ MOZ_ASSERT(p1);
+ MOZ_ASSERT(p1->local);
+ MOZ_ASSERT(p1->remote);
+ NrIceCandidatePair pair;
+
+ p2 = TAILQ_FIRST(&peer_stream->check_list);
+ while (p2) {
+ if (p1 == p2) {
+ /* Don't compare with our self. */
+ p2 = TAILQ_NEXT(p2, check_queue_entry);
+ continue;
+ }
+ if (strncmp(p1->codeword, p2->codeword, sizeof(p1->codeword)) == 0) {
+ /* In case of duplicate pairs we only report the one winning pair */
+ if (((p2->remote->component && (p2->remote->component->active == p2)) &&
+ !(p1->remote->component &&
+ (p1->remote->component->active == p1))) ||
+ ((p2->peer_nominated || p2->nominated) &&
+ !(p1->peer_nominated || p1->nominated)) ||
+ (p2->priority > p1->priority) ||
+ ((p2->state == NR_ICE_PAIR_STATE_SUCCEEDED) &&
+ (p1->state != NR_ICE_PAIR_STATE_SUCCEEDED)) ||
+ ((p2->state != NR_ICE_PAIR_STATE_CANCELLED) &&
+ (p1->state == NR_ICE_PAIR_STATE_CANCELLED))) {
+ /* p2 is a better pair. */
+ break;
+ }
+ }
+ p2 = TAILQ_NEXT(p2, check_queue_entry);
+ }
+ if (p2) {
+ /* p2 points to a duplicate but better pair so skip this one */
+ continue;
+ }
+
+ switch (p1->state) {
+ case NR_ICE_PAIR_STATE_FROZEN:
+ pair.state = NrIceCandidatePair::State::STATE_FROZEN;
+ break;
+ case NR_ICE_PAIR_STATE_WAITING:
+ pair.state = NrIceCandidatePair::State::STATE_WAITING;
+ break;
+ case NR_ICE_PAIR_STATE_IN_PROGRESS:
+ pair.state = NrIceCandidatePair::State::STATE_IN_PROGRESS;
+ break;
+ case NR_ICE_PAIR_STATE_FAILED:
+ pair.state = NrIceCandidatePair::State::STATE_FAILED;
+ break;
+ case NR_ICE_PAIR_STATE_SUCCEEDED:
+ pair.state = NrIceCandidatePair::State::STATE_SUCCEEDED;
+ break;
+ case NR_ICE_PAIR_STATE_CANCELLED:
+ pair.state = NrIceCandidatePair::State::STATE_CANCELLED;
+ break;
+ default:
+ MOZ_ASSERT(0);
+ }
+
+ pair.priority = p1->priority;
+ pair.nominated = p1->peer_nominated || p1->nominated;
+ pair.component_id = p1->remote->component->component_id;
+
+ // As discussed with drno: a component's can_send field (set to true
+ // by ICE consent) is a very close approximation for writable and
+ // readable. Note: the component for the local candidate never has
+ // the can_send member set to true, remote for both readable and
+ // writable. (mjf)
+ pair.writable = p1->remote->component->can_send;
+ pair.readable = p1->remote->component->can_send;
+ pair.selected =
+ p1->remote->component && p1->remote->component->active == p1;
+ pair.codeword = p1->codeword;
+ pair.bytes_sent = p1->bytes_sent;
+ pair.bytes_recvd = p1->bytes_recvd;
+ pair.ms_since_last_send =
+ p1->last_sent.tv_sec * 1000 + p1->last_sent.tv_usec / 1000;
+ pair.ms_since_last_recv =
+ p1->last_recvd.tv_sec * 1000 + p1->last_recvd.tv_usec / 1000;
+
+ if (!ToNrIceCandidate(*(p1->local), &pair.local) ||
+ !ToNrIceCandidate(*(p1->remote), &pair.remote)) {
+ return NS_ERROR_FAILURE;
+ }
+
+ out_pairs->push_back(pair);
+ }
+
+ return NS_OK;
+}
+
+nsresult NrIceMediaStream::GetDefaultCandidate(
+ int component, NrIceCandidate* candidate) const {
+ if (!stream_) {
+ return NS_ERROR_NOT_AVAILABLE;
+ }
+
+ nr_ice_candidate* cand;
+
+ int r = nr_ice_media_stream_get_default_candidate(stream_, component, &cand);
+ if (r) {
+ if (r == R_NOT_FOUND) {
+ MOZ_MTLOG(ML_INFO, "Couldn't get default ICE candidate for '"
+ << name_ << "', no candidates.");
+ } else {
+ MOZ_MTLOG(ML_ERROR, "Couldn't get default ICE candidate for '"
+ << name_ << "', " << r);
+ }
+ return NS_ERROR_FAILURE;
+ }
+
+ if (!ToNrIceCandidate(*cand, candidate)) {
+ MOZ_MTLOG(ML_ERROR,
+ "Failed to convert default ICE candidate for '" << name_ << "'");
+ return NS_ERROR_FAILURE;
+ }
+
+ return NS_OK;
+}
+
+std::vector<std::string> NrIceMediaStream::GetAttributes() const {
+ char** attrs = nullptr;
+ int attrct;
+ int r;
+ std::vector<std::string> ret;
+
+ if (!stream_) {
+ return ret;
+ }
+
+ r = nr_ice_media_stream_get_attributes(stream_, &attrs, &attrct);
+ if (r) {
+ MOZ_MTLOG(ML_ERROR, "Couldn't get ICE candidates for '" << name_ << "'");
+ return ret;
+ }
+
+ for (int i = 0; i < attrct; i++) {
+ ret.push_back(attrs[i]);
+ RFREE(attrs[i]);
+ }
+
+ RFREE(attrs);
+
+ return ret;
+}
+
+static nsresult GetCandidatesFromStream(
+ nr_ice_media_stream* stream, std::vector<NrIceCandidate>* candidates) {
+ MOZ_ASSERT(candidates);
+ nr_ice_component* comp = STAILQ_FIRST(&stream->components);
+ while (comp) {
+ if (comp->state != NR_ICE_COMPONENT_DISABLED) {
+ nr_ice_candidate* cand = TAILQ_FIRST(&comp->candidates);
+ while (cand) {
+ NrIceCandidate new_cand;
+ // This can fail if the candidate is server reflexive or relayed, and
+ // has not yet received a response (ie; it doesn't know its address
+ // yet). For the purposes of this code, this isn't a candidate we're
+ // interested in, since it is not fully baked yet.
+ if (ToNrIceCandidate(*cand, &new_cand)) {
+ candidates->push_back(new_cand);
+ }
+ cand = TAILQ_NEXT(cand, entry_comp);
+ }
+ }
+ comp = STAILQ_NEXT(comp, entry);
+ }
+
+ return NS_OK;
+}
+
+nsresult NrIceMediaStream::GetLocalCandidates(
+ std::vector<NrIceCandidate>* candidates) const {
+ if (!stream_) {
+ return NS_ERROR_NOT_AVAILABLE;
+ }
+
+ return GetCandidatesFromStream(stream_, candidates);
+}
+
+nsresult NrIceMediaStream::GetRemoteCandidates(
+ std::vector<NrIceCandidate>* candidates) const {
+ if (!stream_) {
+ return NS_ERROR_NOT_AVAILABLE;
+ }
+
+ // If we haven't at least started checking then there is nothing to report
+ if (ctx_->peer()->state != NR_ICE_PEER_STATE_PAIRED) {
+ return NS_OK;
+ }
+
+ nr_ice_media_stream* peer_stream;
+ int r = nr_ice_peer_ctx_find_pstream(ctx_->peer(), stream_, &peer_stream);
+ if (r != 0) {
+ return NS_ERROR_FAILURE;
+ }
+
+ return GetCandidatesFromStream(peer_stream, candidates);
+}
+
+nsresult NrIceMediaStream::DisableComponent(int component_id) {
+ if (!stream_) return NS_ERROR_FAILURE;
+
+ int r = nr_ice_media_stream_disable_component(stream_, component_id);
+ if (r) {
+ MOZ_MTLOG(ML_ERROR, "Couldn't disable '" << name_ << "':" << component_id);
+ return NS_ERROR_FAILURE;
+ }
+
+ return NS_OK;
+}
+
+nsresult NrIceMediaStream::GetConsentStatus(int component_id, bool* can_send,
+ struct timeval* ts) {
+ if (!stream_) return NS_ERROR_FAILURE;
+
+ nr_ice_media_stream* peer_stream;
+ int r = nr_ice_peer_ctx_find_pstream(ctx_->peer(), stream_, &peer_stream);
+ if (r) {
+ MOZ_MTLOG(ML_ERROR, "Failed to find peer stream for '"
+ << name_ << "':" << component_id);
+ return NS_ERROR_FAILURE;
+ }
+
+ int send = 0;
+ r = nr_ice_media_stream_get_consent_status(peer_stream, component_id, &send,
+ ts);
+ if (r) {
+ MOZ_MTLOG(ML_ERROR, "Failed to get consent status for '"
+ << name_ << "':" << component_id);
+ return NS_ERROR_FAILURE;
+ }
+ *can_send = !!send;
+
+ return NS_OK;
+}
+
+bool NrIceMediaStream::HasStream(nr_ice_media_stream* stream) const {
+ return (stream == stream_) || (stream == old_stream_);
+}
+
+nsresult NrIceMediaStream::SendPacket(int component_id,
+ const unsigned char* data, size_t len) {
+ nr_ice_media_stream* stream = old_stream_ ? old_stream_ : stream_;
+ if (!stream) {
+ return NS_ERROR_FAILURE;
+ }
+
+ int r = nr_ice_media_stream_send(ctx_->peer(), stream, component_id,
+ const_cast<unsigned char*>(data), len);
+ if (r) {
+ MOZ_MTLOG(ML_ERROR, "Couldn't send media on '" << name_ << "'");
+ if (r == R_WOULDBLOCK) {
+ return NS_BASE_STREAM_WOULD_BLOCK;
+ }
+
+ return NS_BASE_STREAM_OSERROR;
+ }
+
+ return NS_OK;
+}
+
+void NrIceMediaStream::Ready() {
+ // This function is called whenever a stream becomes ready, but it
+ // gets fired multiple times when a stream gets nominated repeatedly.
+ if (state_ != ICE_OPEN) {
+ MOZ_MTLOG(ML_DEBUG, "Marking stream ready '" << name_ << "'");
+ state_ = ICE_OPEN;
+ NS_DispatchToCurrentThread(NewRunnableMethod<nr_ice_media_stream*>(
+ "NrIceMediaStream::DeferredCloseOldStream", this,
+ &NrIceMediaStream::DeferredCloseOldStream, old_stream_));
+ SignalReady(this);
+ } else {
+ MOZ_MTLOG(ML_DEBUG,
+ "Stream ready callback fired again for '" << name_ << "'");
+ }
+}
+
+void NrIceMediaStream::Failed() {
+ if (state_ != ICE_CLOSED) {
+ MOZ_MTLOG(ML_DEBUG, "Marking stream failed '" << name_ << "'");
+ state_ = ICE_CLOSED;
+ // We don't need the old stream anymore.
+ NS_DispatchToCurrentThread(NewRunnableMethod<nr_ice_media_stream*>(
+ "NrIceMediaStream::DeferredCloseOldStream", this,
+ &NrIceMediaStream::DeferredCloseOldStream, old_stream_));
+ SignalFailed(this);
+ }
+}
+
+void NrIceMediaStream::Close() {
+ MOZ_MTLOG(ML_DEBUG, "Marking stream closed '" << name_ << "'");
+ state_ = ICE_CLOSED;
+
+ CloseStream(&old_stream_);
+ CloseStream(&stream_);
+ ctx_ = nullptr;
+}
+
+void NrIceMediaStream::CloseStream(nr_ice_media_stream** stream) {
+ if (*stream) {
+ int r = nr_ice_remove_media_stream(ctx_->ctx(), stream);
+ if (r) {
+ MOZ_ASSERT(false, "Failed to remove stream");
+ MOZ_MTLOG(ML_ERROR, "Failed to remove stream, error=" << r);
+ }
+ *stream = nullptr;
+ }
+}
+
+void NrIceMediaStream::DeferredCloseOldStream(const nr_ice_media_stream* old) {
+ if (old == old_stream_) {
+ CloseStream(&old_stream_);
+ }
+}
+
+nr_ice_media_stream* NrIceMediaStream::GetStreamForRemoteUfrag(
+ const std::string& aUfrag) {
+ if (aUfrag.empty()) {
+ return stream_;
+ }
+
+ nr_ice_media_stream* peer_stream = nullptr;
+
+ if (!nr_ice_peer_ctx_find_pstream(ctx_->peer(), stream_, &peer_stream) &&
+ aUfrag == peer_stream->ufrag) {
+ return stream_;
+ }
+
+ if (old_stream_ &&
+ !nr_ice_peer_ctx_find_pstream(ctx_->peer(), old_stream_, &peer_stream) &&
+ aUfrag == peer_stream->ufrag) {
+ return old_stream_;
+ }
+
+ return nullptr;
+}
+
+} // namespace mozilla