#if !defined (_JOBS_H_)
# define _JOBS_H_
#include "quit.h"
#include "siglist.h"
#include "stdc.h"
#include "posixwait.h"
#define JLIST_STANDARD 0
#define JLIST_LONG 1
#define JLIST_PID_ONLY 2
#define JLIST_CHANGED_ONLY 3
#define JLIST_NONINTERACTIVE 4
#define LONGEST_SIGNAL_DESC 24
#define JWAIT_PERROR (1 << 0)
#define JWAIT_FORCE (1 << 1)
#define JWAIT_NOWAIT (1 << 2)
#define JWAIT_WAITING (1 << 3)
#define JWAIT_NOTERM (1 << 8)
#define FORKSLEEP_MAX 16
#define PS_DONE 0
#define PS_RUNNING 1
#define PS_STOPPED 2
#define PS_RECYCLED 4
typedef struct process {
struct process *next;
pid_t pid;
WAIT status;
int running;
char *command;
} PROCESS;
struct pipeline_saver {
struct process *pipeline;
struct pipeline_saver *next;
};
#define PSTOPPED(p) (WIFSTOPPED((p)->status))
#define PRUNNING(p) ((p)->running == PS_RUNNING)
#define PALIVE(p) (PRUNNING(p) || PSTOPPED(p))
#define PEXITED(p) ((p)->running == PS_DONE)
#if defined (RECYCLES_PIDS)
# define PRECYCLED(p) ((p)->running == PS_RECYCLED)
#else
# define PRECYCLED(p) (0)
#endif
#define PDEADPROC(p) (PEXITED(p) || PRECYCLED(p))
#define get_job_by_jid(ind) (jobs[(ind)])
typedef enum { JNONE = -1, JRUNNING = 1, JSTOPPED = 2, JDEAD = 4, JMIXED = 8 } JOB_STATE;
#define JOBSTATE(job) (jobs[(job)]->state)
#define J_JOBSTATE(j) ((j)->state)
#define STOPPED(j) (jobs[(j)]->state == JSTOPPED)
#define RUNNING(j) (jobs[(j)]->state == JRUNNING)
#define DEADJOB(j) (jobs[(j)]->state == JDEAD)
#define INVALID_JOB(j) ((j) < 0 || (j) >= js.j_jobslots || get_job_by_jid(j) == 0)
#define J_FOREGROUND 0x01
#define J_NOTIFIED 0x02
#define J_JOBCONTROL 0x04
#define J_NOHUP 0x08
#define J_STATSAVED 0x10
#define J_ASYNC 0x20
#define J_PIPEFAIL 0x40
#define J_WAITING 0x80
#define IS_FOREGROUND(j) ((jobs[j]->flags & J_FOREGROUND) != 0)
#define IS_NOTIFIED(j) ((jobs[j]->flags & J_NOTIFIED) != 0)
#define IS_JOBCONTROL(j) ((jobs[j]->flags & J_JOBCONTROL) != 0)
#define IS_ASYNC(j) ((jobs[j]->flags & J_ASYNC) != 0)
#define IS_WAITING(j) ((jobs[j]->flags & J_WAITING) != 0)
typedef struct job {
char *wd;
PROCESS *pipe;
pid_t pgrp;
JOB_STATE state;
int flags;
#if defined (JOB_CONTROL)
COMMAND *deferred;
sh_vptrfunc_t *j_cleanup;
PTR_T cleanarg;
#endif
} JOB;
struct jobstats {
long c_childmax;
int c_living;
int c_reaped;
int c_injobs;
int c_totforked;
int c_totreaped;
int j_jobslots;
int j_lastj;
int j_firstj;
int j_njobs;
int j_ndead;
int j_current;
int j_previous;
JOB *j_lastmade;
JOB *j_lastasync;
};
typedef pid_t ps_index_t;
struct pidstat {
ps_index_t bucket_next;
ps_index_t bucket_prev;
pid_t pid;
bits16_t status;
};
struct bgpids {
struct pidstat *storage;
ps_index_t head;
ps_index_t nalloc;
int npid;
};
#define NO_PIDSTAT (ps_index_t)-1
struct procstat {
pid_t pid;
bits16_t status;
};
struct procchain {
PROCESS *head;
PROCESS *end;
int nproc;
};
#define NO_JOB -1
#define DUP_JOB -2
#define BAD_JOBSPEC -3
#define NO_PID (pid_t)-1
#define ANY_PID (pid_t)-1
#define FORK_SYNC 0
#define FORK_ASYNC 1
#define FORK_NOJOB 2
#define FORK_NOTERM 4
#if !defined (HAVE_UNISTD_H)
extern pid_t fork (), getpid (), getpgrp ();
#endif
extern struct jobstats js;
extern pid_t original_pgrp, shell_pgrp, pipeline_pgrp;
extern volatile pid_t last_made_pid, last_asynchronous_pid;
extern int asynchronous_notification;
extern int already_making_children;
extern int running_in_background;
extern PROCESS *last_procsub_child;
extern JOB **jobs;
extern void making_children PARAMS((void));
extern void stop_making_children PARAMS((void));
extern void cleanup_the_pipeline PARAMS((void));
extern void discard_last_procsub_child PARAMS((void));
extern void save_pipeline PARAMS((int));
extern PROCESS *restore_pipeline PARAMS((int));
extern void start_pipeline PARAMS((void));
extern int stop_pipeline PARAMS((int, COMMAND *));
extern int discard_pipeline PARAMS((PROCESS *));
extern void append_process PARAMS((char *, pid_t, int, int));
extern void save_proc_status PARAMS((pid_t, int));
extern PROCESS *procsub_add PARAMS((PROCESS *));
extern PROCESS *procsub_search PARAMS((pid_t));
extern PROCESS *procsub_delete PARAMS((pid_t));
extern int procsub_waitpid PARAMS((pid_t));
extern void procsub_waitall PARAMS((void));
extern void procsub_clear PARAMS((void));
extern void procsub_prune PARAMS((void));
extern void delete_job PARAMS((int, int));
extern void nohup_job PARAMS((int));
extern void delete_all_jobs PARAMS((int));
extern void nohup_all_jobs PARAMS((int));
extern int count_all_jobs PARAMS((void));
extern void terminate_current_pipeline PARAMS((void));
extern void terminate_stopped_jobs PARAMS((void));
extern void hangup_all_jobs PARAMS((void));
extern void kill_current_pipeline PARAMS((void));
#if defined (__STDC__) && defined (pid_t)
extern int get_job_by_pid PARAMS((int, int, PROCESS **));
extern void describe_pid PARAMS((int));
#else
extern int get_job_by_pid PARAMS((pid_t, int, PROCESS **));
extern void describe_pid PARAMS((pid_t));
#endif
extern void list_one_job PARAMS((JOB *, int, int, int));
extern void list_all_jobs PARAMS((int));
extern void list_stopped_jobs PARAMS((int));
extern void list_running_jobs PARAMS((int));
extern pid_t make_child PARAMS((char *, int));
extern int get_tty_state PARAMS((void));
extern int set_tty_state PARAMS((void));
extern int job_exit_status PARAMS((int));
extern int job_exit_signal PARAMS((int));
extern int wait_for_single_pid PARAMS((pid_t, int));
extern int wait_for_background_pids PARAMS((struct procstat *));
extern int wait_for PARAMS((pid_t, int));
extern int wait_for_job PARAMS((int, int, struct procstat *));
extern int wait_for_any_job PARAMS((int, struct procstat *));
extern void wait_sigint_cleanup PARAMS((void));
extern void notify_and_cleanup PARAMS((void));
extern void reap_dead_jobs PARAMS((void));
extern int start_job PARAMS((int, int));
extern int kill_pid PARAMS((pid_t, int, int));
extern int initialize_job_control PARAMS((int));
extern void initialize_job_signals PARAMS((void));
extern int give_terminal_to PARAMS((pid_t, int));
extern void run_sigchld_trap PARAMS((int));
extern int freeze_jobs_list PARAMS((void));
extern void unfreeze_jobs_list PARAMS((void));
extern void set_jobs_list_frozen PARAMS((int));
extern int set_job_control PARAMS((int));
extern void without_job_control PARAMS((void));
extern void end_job_control PARAMS((void));
extern void restart_job_control PARAMS((void));
extern void set_sigchld_handler PARAMS((void));
extern void ignore_tty_job_signals PARAMS((void));
extern void default_tty_job_signals PARAMS((void));
extern void get_original_tty_job_signals PARAMS((void));
extern void init_job_stats PARAMS((void));
extern void close_pgrp_pipe PARAMS((void));
extern void save_pgrp_pipe PARAMS((int *, int));
extern void restore_pgrp_pipe PARAMS((int *));
extern void set_maxchild PARAMS((int));
#ifdef DEBUG
extern void debug_print_pgrps (void);
#endif
extern int job_control;
#endif