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C++

/**
* Copyright 2013-2021 Software Radio Systems Limited
*
* This file is part of srsLTE.
*
* srsLTE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* srsLTE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* A copy of the GNU Affero General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#ifndef SRSUE_MUX_BASE_H
#define SRSUE_MUX_BASE_H
#include "srsran/interfaces/mac_interface_types.h"
namespace srsue {
/**
* @brief Common base class for UE MUX unit for 4G and 5G RAT
*
*/
class mux_base
{
public:
int setup_lcid(const srsran::logical_channel_config_t& config)
{
if (has_logical_channel(config.lcid)) {
// update settings
for (auto& channel : logical_channels) {
if (channel.lcid == config.lcid) {
channel = config;
break;
}
}
// warn user if there is another LCID with same prio
for (auto& channel : logical_channels) {
if (channel.priority == config.priority && channel.lcid != config.lcid) {
srslog::fetch_basic_logger("MAC").error("LCID %d and %d have same priority.", channel.lcid, config.lcid);
return SRSRAN_ERROR;
}
}
} else {
// add new entry
logical_channels.push_back(config);
}
// sort according to priority (increasing is lower priority)
std::sort(logical_channels.begin(), logical_channels.end(), priority_compare);
return SRSRAN_SUCCESS;
}
void print_logical_channel_state(const std::string& info)
{
std::string logline = info;
for (auto& channel : logical_channels) {
logline += "\n";
logline += "- lcid=";
logline += std::to_string(channel.lcid);
logline += ", lcg=";
logline += std::to_string(channel.lcg);
logline += ", prio=";
logline += std::to_string(channel.priority);
logline += ", Bj=";
logline += std::to_string(channel.Bj);
logline += ", PBR=";
logline += std::to_string(channel.PBR);
logline += ", BSD=";
logline += std::to_string(channel.BSD);
logline += ", buffer_len=";
logline += std::to_string(channel.buffer_len);
logline += ", sched_len=";
logline += std::to_string(channel.sched_len);
}
srslog::fetch_basic_logger("MAC").debug("%s", logline.c_str());
}
protected:
static bool priority_compare(const srsran::logical_channel_config_t& u1, const srsran::logical_channel_config_t& u2)
{
return u1.priority <= u2.priority;
}
bool has_logical_channel(const uint32_t& lcid)
{
for (auto& channel : logical_channels) {
if (channel.lcid == lcid) {
return true;
}
}
return false;
}
std::vector<srsran::logical_channel_config_t> logical_channels;
};
} // namespace srsue
#endif // SRSUE_MUX_BASE_H