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/*
* Copyright (c) 2019 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.
*/
#ifndef TEST_PEER_SCENARIO_SIGNALING_ROUTE_H_
#define TEST_PEER_SCENARIO_SIGNALING_ROUTE_H_
#include <string>
#include <utility>
#include "test/network/network_emulation_manager.h"
#include "test/peer_scenario/peer_scenario_client.h"
namespace webrtc {
namespace test {
// Helper class to reduce the amount of boilerplate required for ICE signalling
// ad SDP negotiation.
class SignalingRoute {
public:
SignalingRoute(PeerScenarioClient* caller,
PeerScenarioClient* callee,
CrossTrafficRoute* send_route,
CrossTrafficRoute* ret_route);
void StartIceSignaling();
// The `modify_offer` callback is used to modify an offer after the local
// description has been set. This is legal (but odd) behavior.
// The `munge_offer` callback is used to modify an offer between its creation
// and set local description. This behavior is forbidden according to the spec
// but available here in order to allow test coverage on corner cases.
// `callee_remote_description_set` is invoked when callee has applied the
// offer but not yet created an answer. The purpose is to allow tests to
// modify transceivers created from the offer. The `exchange_finished`
// callback is called with the answer produced after SDP negotations has
// completed.
// TODO(srte): Handle lossy links.
void NegotiateSdp(
std::function<void(SessionDescriptionInterface* offer)> munge_offer,
std::function<void(SessionDescriptionInterface* offer)> modify_offer,
std::function<void()> callee_remote_description_set,
std::function<void(const SessionDescriptionInterface& answer)>
exchange_finished);
void NegotiateSdp(
std::function<void(SessionDescriptionInterface* offer)> munge_offer,
std::function<void(SessionDescriptionInterface* offer)> modify_offer,
std::function<void(const SessionDescriptionInterface& answer)>
exchange_finished);
void NegotiateSdp(
std::function<void(SessionDescriptionInterface* offer)> modify_offer,
std::function<void(const SessionDescriptionInterface& answer)>
exchange_finished);
void NegotiateSdp(
std::function<void()> remote_description_set,
std::function<void(const SessionDescriptionInterface& answer)>
exchange_finished);
void NegotiateSdp(
std::function<void(const SessionDescriptionInterface& answer)>
exchange_finished);
SignalingRoute reverse() {
return SignalingRoute(callee_, caller_, ret_route_, send_route_);
}
private:
PeerScenarioClient* const caller_;
PeerScenarioClient* const callee_;
CrossTrafficRoute* const send_route_;
CrossTrafficRoute* const ret_route_;
};
} // namespace test
} // namespace webrtc
#endif // TEST_PEER_SCENARIO_SIGNALING_ROUTE_H_