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/*
* Copyright (c) 2021 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <glog/logging.h>
#include <hicn/transport/errors/not_implemented_exception.h>
#include <io_modules/loopback/loopback_module.h>
namespace transport {
namespace core {
std::vector<std::unique_ptr<LocalConnector>> LoopbackModule::local_faces_;
std::atomic<uint32_t> LoopbackModule::global_counter_(0);
LoopbackModule::LoopbackModule() : IoModule(), local_id_(~0) {}
LoopbackModule::~LoopbackModule() {}
void LoopbackModule::connect(bool is_consumer) {}
bool LoopbackModule::isConnected() { return true; }
void LoopbackModule::send(Packet &packet) {
IoModule::send(packet);
DLOG_IF(INFO, VLOG_IS_ON(3)) << "LoopbackModule: sending from " << local_id_
<< " to " << 1 - local_id_;
local_faces_.at(1 - local_id_)->send(packet);
}
void LoopbackModule::send(const utils::MemBuf::Ptr &buffer) {
// not supported
throw errors::NotImplementedException();
}
void LoopbackModule::registerRoute(const Prefix &prefix) {
// For the moment we route packets from one socket to the other.
// Next step will be to introduce a FIB
return;
}
void LoopbackModule::closeConnection() {
local_faces_.erase(local_faces_.begin() + local_id_);
}
void LoopbackModule::init(Connector::PacketReceivedCallback &&receive_callback,
Connector::PacketSentCallback &&sent_callback,
Connector::OnReconnectCallback &&reconnect_callback,
asio::io_service &io_service,
const std::string &app_name) {
if (local_id_ == uint32_t(~0) && global_counter_ < 2) {
local_id_ = global_counter_++;
local_faces_.emplace(
local_faces_.begin() + local_id_,
new LocalConnector(io_service, std::move(receive_callback),
std::move(sent_callback), nullptr,
std::move(reconnect_callback)));
}
}
void LoopbackModule::processControlMessageReply(utils::MemBuf &packet_buffer) {
return;
}
std::uint32_t LoopbackModule::getMtu() { return interface_mtu; }
bool LoopbackModule::isControlMessage(utils::MemBuf &packet_buffer) {
return false;
}
extern "C" IoModule *create_module(void) { return new LoopbackModule(); }
} // namespace core
} // namespace transport
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