blob: d42d8e21bba7a2b05c8904c415618a5c742c82c1 [file] [log] [blame]
/*
* 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.
*/
#include "test/network/traffic_route.h"
#include <algorithm>
#include <memory>
#include <utility>
#include "absl/types/optional.h"
#include "rtc_base/logging.h"
#include "rtc_base/numerics/safe_minmax.h"
namespace webrtc {
namespace test {
namespace {
class NullReceiver : public EmulatedNetworkReceiverInterface {
public:
void OnPacketReceived(EmulatedIpPacket packet) override {}
};
class ActionReceiver : public EmulatedNetworkReceiverInterface {
public:
ActionReceiver(std::function<void()> action, EmulatedEndpoint* endpoint)
: action_(action), endpoint_(endpoint) {}
~ActionReceiver() override = default;
void OnPacketReceived(EmulatedIpPacket packet) override {
RTC_DCHECK(port_);
action_();
endpoint_->UnbindReceiver(port_.value());
}
// We can't set port in constructor, because port will be provided by
// endpoint, when this receiver will be binded to that endpoint.
void SetPort(uint16_t port) { port_ = port; }
private:
std::function<void()> action_;
// Endpoint and port will be used to free port in the endpoint after action
// will be done.
EmulatedEndpoint* endpoint_;
absl::optional<uint16_t> port_ = absl::nullopt;
};
} // namespace
CrossTrafficRouteImpl::CrossTrafficRouteImpl(
Clock* clock,
EmulatedNetworkReceiverInterface* receiver,
EmulatedEndpoint* endpoint)
: clock_(clock), receiver_(receiver), endpoint_(endpoint) {
null_receiver_ = std::make_unique<NullReceiver>();
absl::optional<uint16_t> port =
endpoint_->BindReceiver(0, null_receiver_.get());
RTC_DCHECK(port);
null_receiver_port_ = port.value();
}
CrossTrafficRouteImpl::~CrossTrafficRouteImpl() = default;
void CrossTrafficRouteImpl::TriggerPacketBurst(size_t num_packets,
size_t packet_size) {
for (size_t i = 0; i < num_packets; ++i) {
SendPacket(packet_size);
}
}
void CrossTrafficRouteImpl::NetworkDelayedAction(size_t packet_size,
std::function<void()> action) {
auto action_receiver = std::make_unique<ActionReceiver>(action, endpoint_);
absl::optional<uint16_t> port =
endpoint_->BindReceiver(0, action_receiver.get());
RTC_DCHECK(port);
action_receiver->SetPort(port.value());
actions_.push_back(std::move(action_receiver));
SendPacket(packet_size, port.value());
}
void CrossTrafficRouteImpl::SendPacket(size_t packet_size) {
SendPacket(packet_size, null_receiver_port_);
}
void CrossTrafficRouteImpl::SendPacket(size_t packet_size, uint16_t dest_port) {
rtc::CopyOnWriteBuffer data(packet_size);
std::fill_n(data.MutableData(), data.size(), 0);
receiver_->OnPacketReceived(EmulatedIpPacket(
/*from=*/rtc::SocketAddress(),
rtc::SocketAddress(endpoint_->GetPeerLocalAddress(), dest_port), data,
clock_->CurrentTime()));
}
} // namespace test
} // namespace webrtc