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C++

/**
*
* \section COPYRIGHT
*
* Copyright 2013-2021 Software Radio Systems Limited
*
* By using this file, you agree to the terms and conditions set
* forth in the LICENSE file which can be found at the top level of
* the distribution.
*
*/
#ifndef SRSRAN_SCHED_NR_COMMON_H
#define SRSRAN_SCHED_NR_COMMON_H
#include "sched_nr_interface.h"
#include "srsran/adt/bounded_bitset.h"
namespace srsenb {
const static size_t SCHED_NR_MAX_USERS = 4;
const static size_t SCHED_NR_NOF_SUBFRAMES = 10;
const static size_t SCHED_NR_NOF_HARQS = 16;
namespace sched_nr_impl {
using sched_cfg_t = sched_nr_interface::sched_cfg_t;
using cell_cfg_t = sched_nr_interface::cell_cfg_t;
struct sched_cell_params {
const uint32_t cc;
const cell_cfg_t cell_cfg;
const sched_cfg_t& sched_cfg;
sched_cell_params(uint32_t cc_, const cell_cfg_t& cell, const sched_cfg_t& sched_cfg_) :
cc(cc_), cell_cfg(cell), sched_cfg(sched_cfg_)
{}
};
struct sched_params {
const sched_cfg_t sched_cfg;
std::vector<sched_cell_params> cells;
explicit sched_params(const sched_cfg_t& sched_cfg_) : sched_cfg(sched_cfg_) {}
};
using pdcchmask_t = srsran::bounded_bitset<SCHED_NR_MAX_NOF_RBGS, true>;
using rbgmask_t = srsran::bounded_bitset<SCHED_NR_MAX_NOF_RBGS, true>;
struct resource_guard {
public:
resource_guard() = default;
resource_guard(const resource_guard& other) = delete;
resource_guard(resource_guard&& other) = delete;
resource_guard& operator=(const resource_guard& other) = delete;
resource_guard& operator=(resource_guard&& other) = delete;
bool busy() const { return flag; }
struct token {
token() = default;
token(resource_guard& parent) : flag(parent.busy() ? nullptr : &parent.flag)
{
if (flag != nullptr) {
*flag = true;
}
}
token(token&&) noexcept = default;
token& operator=(token&&) noexcept = default;
void release() { flag.reset(); }
bool owns_token() const { return flag != nullptr; }
bool empty() const { return flag == nullptr; }
private:
struct release_deleter {
void operator()(bool* ptr)
{
if (ptr != nullptr) {
srsran_assert(*ptr == true, "resource token: detected inconsistency token state");
*ptr = false;
}
}
};
std::unique_ptr<bool, release_deleter> flag;
};
private:
bool flag = false;
};
} // namespace sched_nr_impl
} // namespace srsenb
#endif // SRSRAN_SCHED_NR_COMMON_H