Process.hpp

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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 system/Process.h to include/okssystem/Process.hpp).
 
/*
 *  Process.h
 *  OksSystem
 *
 *  Created by Matthias Wiesmann on 18.01.05.
 *  Copyright 2005 CERN. All rights reserved.
 *
 */
 
#ifndef OKSSYSTEM_PROCESS
#define OKSSYSTEM_PROCESS
 
#include <sys/types.h>
#include <string>
 
namespace OksSystem {
    
    
    class Process {
protected:
    pid_t              m_process_id ;                    
    std::string        m_process_name ;                  
    static const char* const SYS_EXITS_NAMES[] ;         
    static const char* const TEST_EXITS_NAMES[] ;        
    static const char* const OK_EXIT_NAME ;              
    static const char* const SIGNAL_EXIT_NAME ;          
    static const int TEST_BASE_VALUE ;                   
    static const int TEST_MAX_VALUE ;                    
    static const int TERMINATION_WAIT ;                  
    static Process *s_instance ;                         
public:
    static const char* exit_text(int return_value) ;     
    static std::string exit_pretty(int return_value) ; 
    static const Process *instance() throw() ;
    static void set_name(const std::string &name) throw() ; 
    Process();                                           
    Process(const Process &other) ;                      
    Process(pid_t pid) ;                                 
    Process(pid_t pid, const std::string &name);         
    ~Process() throw() ;                                 
    operator pid_t() const throw() ;                     
    int join(bool throw_non_zero=false) const ;          
    void signal(int signal) const ;                      
    bool exists() const ;                                
    bool equals(const Process &other) const throw() ;    
    void terminate() const ;                             
    pid_t process_id() const throw();                    
    std::string to_string() const throw();               
    } ; // Process
    
} // OksSystem
 
std::ostream& operator<<(std::ostream& stream, const OksSystem::Process &proc) ;        
bool operator ==(const OksSystem::Process &a, const OksSystem::Process &b)  throw(); 
bool operator !=(const OksSystem::Process &a, const OksSystem::Process &b)  throw(); 
 
#endif