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//
// Copyright 2015 Ettus Research LLC
// Copyright 2018 Ettus Research, a National Instruments Company
//
// SPDX-License-Identifier: GPL-3.0-or-later
//

#include <uhd/usrp/subdev_spec.h>
#include <string.h>

uhd_error uhd_subdev_spec_pair_free(uhd_subdev_spec_pair_t* subdev_spec_pair)
{
    UHD_SAFE_C(if (subdev_spec_pair->db_name) {
        free(subdev_spec_pair->db_name);
        subdev_spec_pair->db_name = NULL;
    } if (subdev_spec_pair->sd_name) {
        free(subdev_spec_pair->sd_name);
        subdev_spec_pair->sd_name = NULL;
    })
}

uhd_error uhd_subdev_spec_pairs_equal(const uhd_subdev_spec_pair_t* first,
    const uhd_subdev_spec_pair_t* second,
    bool* result_out)
{
    UHD_SAFE_C(*result_out = (uhd_subdev_spec_pair_c_to_cpp(first)
                              == uhd_subdev_spec_pair_c_to_cpp(second));)
}

uhd_error uhd_subdev_spec_make(uhd_subdev_spec_handle* h, const char* markup)
{
    UHD_SAFE_C((*h) = new uhd_subdev_spec_t; std::string markup_cpp(markup);
               if (!markup_cpp.empty()) {
                   (*h)->subdev_spec_cpp = uhd::usrp::subdev_spec_t(markup_cpp);
               })
}

uhd_error uhd_subdev_spec_free(uhd_subdev_spec_handle* h)
{
    UHD_SAFE_C(delete (*h); (*h) = NULL;)
}

uhd_error uhd_subdev_spec_size(uhd_subdev_spec_handle h, size_t* size_out)
{
    UHD_SAFE_C_SAVE_ERROR(h, *size_out = h->subdev_spec_cpp.size();)
}

uhd_error uhd_subdev_spec_push_back(uhd_subdev_spec_handle h, const char* markup)
{
    UHD_SAFE_C_SAVE_ERROR(
        h, h->subdev_spec_cpp.push_back(uhd::usrp::subdev_spec_pair_t(markup));)
}

uhd_error uhd_subdev_spec_at(
    uhd_subdev_spec_handle h, size_t num, uhd_subdev_spec_pair_t* subdev_spec_pair_out)
{
    UHD_SAFE_C_SAVE_ERROR(
        h,
        uhd_subdev_spec_pair_cpp_to_c(h->subdev_spec_cpp.at(num), subdev_spec_pair_out);)
}

uhd_error uhd_subdev_spec_to_pp_string(
    uhd_subdev_spec_handle h, char* pp_string_out, size_t strbuffer_len)
{
    UHD_SAFE_C_SAVE_ERROR(
        h, std::string pp_string_cpp = h->subdev_spec_cpp.to_pp_string();
        memset(pp_string_out, '\0', strbuffer_len);
        strncpy(pp_string_out, pp_string_cpp.c_str(), strbuffer_len);)
}

uhd_error uhd_subdev_spec_to_string(
    uhd_subdev_spec_handle h, char* string_out, size_t strbuffer_len)
{
    UHD_SAFE_C_SAVE_ERROR(h, std::string string_cpp = h->subdev_spec_cpp.to_string();
                          memset(string_out, '\0', strbuffer_len);
                          strncpy(string_out, string_cpp.c_str(), strbuffer_len);)
}

uhd_error uhd_subdev_spec_last_error(
    uhd_subdev_spec_handle h, char* error_out, size_t strbuffer_len)
{
    UHD_SAFE_C(memset(error_out, '\0', strbuffer_len);
               strncpy(error_out, h->last_error.c_str(), strbuffer_len);)
}

uhd::usrp::subdev_spec_pair_t uhd_subdev_spec_pair_c_to_cpp(
    const uhd_subdev_spec_pair_t* subdev_spec_pair_c)
{
    return uhd::usrp::subdev_spec_pair_t(
        subdev_spec_pair_c->db_name, subdev_spec_pair_c->sd_name);
}

void uhd_subdev_spec_pair_cpp_to_c(
    const uhd::usrp::subdev_spec_pair_t& subdev_spec_pair_cpp,
    uhd_subdev_spec_pair_t* subdev_spec_pair_c)
{
    subdev_spec_pair_c->db_name = strdup(subdev_spec_pair_cpp.db_name.c_str());
    subdev_spec_pair_c->sd_name = strdup(subdev_spec_pair_cpp.sd_name.c_str());
}