basic.h

/* The basic functions and data structure for the shell */

#ifndef STRUCTURE_H
#define STRUCTURE_H
#include "common.h"
#include <list>
#include <string.h>

void init_shell();

enum CommandType{
    CD,
    EXIT,
    JOBS,
    FG,
    BG,
    NON_BUILT_IN,
    EMPTY
};


class Command{
public:
    std::string name;
    std::list<std::string> parameters;
    CommandType type;
    bool is_process;                /* true if this is a external command */
    bool completed = 0; 
    bool stopped = 0;
    pid_t pid;                      /* process id */
    int status;                     
    
    Command(): pid(0) {}
    
    Command(char *name): pid(0){
        this->name = name;
    }

    /* helper functions */
    void add_parameter(std::string p);
    void show_parameters();
    CommandType check_type();
    size_t parameter_len();
};


class Job{
public:
  std::string command_line;
  std::list<Command> commands;
  std::string status;
  bool is_bg;                   /* the job is in background or not */
  pid_t pgid;                   /* process group ID */
  struct termios tmodes;        /* saved terminal modes*/
  Job* next;                    /* point to next job */
  bool is_notified;             /* be true is has been notified to user, otherwise before each
                                   prompt a notification for stopped job will be given*/
  
  Job(): pgid(0), next(NULL){
      status = "Running";
      is_notified = false;
  }

  bool is_completed(); /* check whether the job is completed */
  bool is_stopped();   /* check whether the job is stopped */
};


#endif