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- #pragma once
-
- #define CMDLINE_MAX_SIZE 1024 /* max length of a single command line */
- #define ARGS_MAX_QUANTITY 128 /* max args on a command line */
- #define BUFFER_MAX_SIZE 64 /* max size of a buffer which contains parsed arguments */
- #define CMDLINE_DIV ' \t\r\n\a'
- #define CMDLINE_HISTORY_MAX_QUANTITY 256
- #define JOBS_MAX_QUANTITY 16
- #define PATH_MAX_SIZE 256
-
- #define FG 1 /* running in foreground */
- #define BG 2 /* running in background */
- #define ST 3 /* stopped */
-
- /* job_t - The job struct */
- struct job_t
- {
- pid_t pid; /* job PID */
- int jid; /* job ID [1, 2, ...] */
- int state; /* UNDEF, BG, FG, or ST */
- char cmdline[CMDLINE_MAX_SIZE]; /* command line */
- };
-
- /* readline - Get the command line */
- char *readline();
-
- /* parseline - Evaluate the command line that the user has just typed in */
- int parseline(char *cmdline, char **args);
-
- /* execute - Execute the command line */
- int execute(char *cmdline, char **args);
-
- /* builtin functions - Handle built-in command */
- int built_in(char **args);
- int builtin_cd(char **args);
- int builtin_ls(char **args);
- int builtin_history(char **args);
- int builtin_jobs(char **args);
- int builtin_mytop(char **args);
-
- /* do_bgfg - Execute background/foregroung tasks */
- int do_bgfg(char **args);
-
- /* addjob - Add jobs to joblist */
- int addjob(struct job_t *jobs, pid_t pid, int state, char *cmdline);
-
- /* pide2jid - Map process ID to job ID*/
- int pid2jid(pid_t pid);
-
- /* waitfg - Wait foreground jobs to finish */
- void waitfg(pid_t pid);
-
- /* fgpid - Return PID of current foreground job, 0 if no such job */
- pid_t fgpid(struct job_t *jobs);
-
- /* determine if a file is hidden */
- int hide(const char *path);
-
- /* */
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