Environment.cpp

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// DUNE DAQ modification notice:
// This file has been modified from the original ATLAS system source for the DUNE DAQ project.
// Fork baseline commit: system-00-00-20 (2020-09-25).
// Renamed since fork: yes (from src/Environment.cxx to src/Environment.cpp).
 
/*
 *  Environment.cxx
 *  ers
 *
 *  Created by Matthias Wiesmann on 11.01.05.
 *  Copyright 2005 CERN. All rights reserved.
 *
 */
 
#include <stdlib.h>
 
#include "okssystem/Environment.hpp"
#include "okssystem/exceptions.hpp"
 
using namespace OksSystem;

 
void OksSystem::Environment::set(const std::string &key, const std::string &value) {
    const char* c_key = key.c_str();
    const char* c_value = value.c_str();
    const int status = ::setenv(c_key,c_value,1);
    if (status<0) {
      std::string message = "while setting " + key + " to " + value;
      throw OksSystemCallIssue( ERS_HERE, errno, "setenv", message.c_str());
    }
} // set

 
void OksSystem::Environment::set(const std::map<std::string,std::string> &values) {
    for(std::map<std::string,std::string>::const_iterator pos = values.begin();pos!=values.end();++pos) {
    set(pos->first,pos->second); 
    } // for
} // set

 
std::string OksSystem::Environment::get(const std::string &key) {
    const char* c_value = ::getenv(key.c_str());
    if (c_value==0) return std::string();
    return std::string(c_value);
} // get