mirror of
https://github.com/kidfromjupiter/nearby.git
synced 2026-09-14 14:46:12 -04:00
119 lines
4.6 KiB
C++
119 lines
4.6 KiB
C++
// Copyright 2020 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "internal/platform/implementation/g3/webrtc.h"
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#include <memory>
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#include <optional>
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#include <string>
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#include <utility>
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#include "absl/strings/string_view.h"
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#include "absl/time/clock.h"
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#include "internal/platform/byte_array.h"
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#include "internal/platform/implementation/webrtc.h"
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#include "internal/platform/medium_environment.h"
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#include "third_party/webrtc/files/stable/webrtc/api/create_modular_peer_connection_factory.h"
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#include "third_party/webrtc/files/stable/webrtc/api/peer_connection_interface.h"
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#include "third_party/webrtc/files/stable/webrtc/api/scoped_refptr.h"
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#include "third_party/webrtc/files/stable/webrtc/rtc_base/checks.h"
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#include "third_party/webrtc/files/stable/webrtc/rtc_base/thread.h"
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namespace nearby {
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namespace g3 {
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using ::location::nearby::connections::LocationHint;
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WebRtcSignalingMessenger::WebRtcSignalingMessenger(
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absl::string_view self_id, const LocationHint& location_hint)
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: self_id_(self_id), location_hint_(location_hint) {}
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bool WebRtcSignalingMessenger::SendMessage(absl::string_view peer_id,
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const ByteArray& message) {
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auto& env = MediumEnvironment::Instance();
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env.SendWebRtcSignalingMessage(peer_id, message);
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return true;
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}
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bool WebRtcSignalingMessenger::StartReceivingMessages(
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OnSignalingMessageCallback on_message_callback,
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OnSignalingCompleteCallback on_complete_callback) {
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auto& env = MediumEnvironment::Instance();
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env.RegisterWebRtcSignalingMessenger(self_id_, std::move(on_message_callback),
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std::move(on_complete_callback));
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return true;
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}
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void WebRtcSignalingMessenger::StopReceivingMessages() {
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auto& env = MediumEnvironment::Instance();
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env.UnregisterWebRtcSignalingMessenger(self_id_);
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}
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WebRtcMedium::~WebRtcMedium() { single_thread_executor_.Shutdown(); }
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void WebRtcMedium::CreatePeerConnection(
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webrtc::PeerConnectionObserver* observer, PeerConnectionCallback callback) {
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CreatePeerConnection(std::nullopt, observer, std::move(callback));
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}
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void WebRtcMedium::CreatePeerConnection(
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std::optional<webrtc::PeerConnectionFactoryInterface::Options> options,
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webrtc::PeerConnectionObserver* observer, PeerConnectionCallback callback) {
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auto& env = MediumEnvironment::Instance();
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if (!env.GetUseValidPeerConnection()) {
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callback(nullptr);
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return;
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}
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webrtc::PeerConnectionInterface::RTCConfiguration rtc_config;
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rtc_config.sdp_semantics = webrtc::SdpSemantics::kUnifiedPlan;
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webrtc::PeerConnectionDependencies dependencies(observer);
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std::unique_ptr<webrtc::Thread> signaling_thread = webrtc::Thread::Create();
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signaling_thread->SetName("signaling_thread", nullptr);
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RTC_CHECK(signaling_thread->Start()) << "Failed to start thread";
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webrtc::PeerConnectionFactoryDependencies factory_dependencies;
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factory_dependencies.signaling_thread = signaling_thread.release();
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webrtc::scoped_refptr<webrtc::PeerConnectionFactoryInterface>
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peer_connection_factory = webrtc::CreateModularPeerConnectionFactory(
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std::move(factory_dependencies));
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RTC_CHECK(peer_connection_factory != nullptr)
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<< "Failed to create peer connection factory";
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if (options.has_value()) {
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peer_connection_factory->SetOptions(options.value());
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}
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auto peer_connection_or_error =
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peer_connection_factory->CreatePeerConnectionOrError(
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rtc_config, std::move(dependencies));
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RTC_CHECK(peer_connection_or_error.ok())
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<< "Failed to create peer connection";
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single_thread_executor_.Execute(
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[&env, callback = std::move(callback),
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peer_connection = peer_connection_or_error.MoveValue()]() mutable {
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absl::SleepFor(env.GetPeerConnectionLatency());
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callback(peer_connection);
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});
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}
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std::unique_ptr<api::WebRtcSignalingMessenger>
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WebRtcMedium::GetSignalingMessenger(absl::string_view self_id,
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const LocationHint& location_hint) {
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return std::make_unique<WebRtcSignalingMessenger>(self_id, location_hint);
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}
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} // namespace g3
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} // namespace nearby
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