Program Listing for File env_util.cpp

↰ Return to documentation for file (src/common/env_util.cpp)

/*
  Copyright 2018-2025, Barcelona Supercomputing Center (BSC), Spain
  Copyright 2015-2025, Johannes Gutenberg Universitaet Mainz, Germany

  This software was partially supported by the
  EC H2020 funded project NEXTGenIO (Project ID: 671951, www.nextgenio.eu).

  This software was partially supported by the
  ADA-FS project under the SPPEXA project funded by the DFG.

  This software was partially supported by the
  the European Union’s Horizon 2020 JTI-EuroHPC research and
  innovation programme, by the project ADMIRE (Project ID: 956748,
  admire-eurohpc.eu)

  This project was partially promoted by the Ministry for Digital Transformation
  and the Civil Service, within the framework of the Recovery,
  Transformation and Resilience Plan - Funded by the European Union
  -NextGenerationEU.

  This file is part of GekkoFS.

  GekkoFS is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.

  GekkoFS 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 General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with GekkoFS.  If not, see <https://www.gnu.org/licenses/>.

  SPDX-License-Identifier: GPL-3.0-or-later
*/
#include <common/env_util.hpp>

#include <string>
#include <cstdlib>

using namespace std;

namespace gkfs::env {

string
get_var(const string& name, const string& default_value) {
    const char* const val = ::secure_getenv(name.c_str());
    return val != nullptr ? string(val) : default_value;
}

int
get_var(const string& name, const int default_value) {
    auto* const val_str = ::secure_getenv(name.c_str());
    if(!val_str)
        return default_value;
    return stoi(val_str);
}

bool
var_is_set(const string& name) {
    const char* const val = ::secure_getenv(name.c_str());
    return val != nullptr;
}

} // namespace gkfs::env