Line data    Source code

       1              : // DUNE DAQ modification notice:
       2              : // This file has been modified from the original ATLAS system source for the DUNE DAQ project.
       3              : // Fork baseline commit: system-00-00-20 (2020-09-25).
       4              : // Renamed since fork: yes (from src/Environment.cxx to src/Environment.cpp).
       5              : 
       6              : /*
       7              :  *  Environment.cxx
       8              :  *  ers
       9              :  *
      10              :  *  Created by Matthias Wiesmann on 11.01.05.
      11              :  *  Copyright 2005 CERN. All rights reserved.
      12              :  *
      13              :  */
      14              : 
      15              : #include <stdlib.h>
      16              : 
      17              : #include "okssystem/Environment.hpp"
      18              : #include "okssystem/exceptions.hpp"
      19              : 
      20              : using namespace OksSystem;
      21              : 
      22              : /** Sets an environnement variable 
      23              :   * \param key the name of the variable
      24              :   * \param value the value of the variable 
      25              :   * \exception PosixIssue unable to set environnement variable 
      26              :   */
      27              : 
      28            0 : void OksSystem::Environment::set(const std::string &key, const std::string &value) {
      29            0 :     const char* c_key = key.c_str();
      30            0 :     const char* c_value = value.c_str();
      31            0 :     const int status = ::setenv(c_key,c_value,1);
      32            0 :     if (status<0) {
      33            0 :       std::string message = "while setting " + key + " to " + value;
      34            0 :       throw OksSystemCallIssue( ERS_HERE, errno, "setenv", message.c_str());
      35            0 :     }
      36            0 : } // set
      37              : 
      38              : /** Sets a collection of environnement variables. 
      39              :  * \param values The  map of string string pairs containing the name / values pairs 
      40              :  * \exception PosixIssue unable to set environnement variable 
      41              :  */
      42              : 
      43            0 : void OksSystem::Environment::set(const std::map<std::string,std::string> &values) {
      44            0 :     for(std::map<std::string,std::string>::const_iterator pos = values.begin();pos!=values.end();++pos) {
      45            0 :         set(pos->first,pos->second); 
      46              :     } // for
      47            0 : } // set
      48              : 
      49              : /** Gets an environnement variable 
      50              :   * \param key the name of the variable 
      51              :   * \return the value of the variable, of the string \c NO_VALUE if the variable is unknown. 
      52              :   */
      53              : 
      54            0 : std::string OksSystem::Environment::get(const std::string &key) {
      55            0 :     const char* c_value = ::getenv(key.c_str());
      56            0 :     if (c_value==0) return std::string();
      57            0 :     return std::string(c_value);
      58              : } // get
      59              :