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/* tab.h - in-core crontab data Author: Kees J. Bot
* 7 Dec 1996
*/
#ifndef TAB__H
#define TAB__H
#include <sys/types.h>
#include <limits.h>
struct crontab;
typedef unsigned char bitmap_t[8];
typedef struct cronjob { /* One entry in a crontab file */
struct cronjob *next;
struct crontab *tab; /* Associated table file. */
bitmap_t min; /* Minute (0-59) */
bitmap_t hour; /* Hour (0-23) */
bitmap_t mday; /* Day of the month (1-31) */
bitmap_t mon; /* Month (1-12) */
bitmap_t wday; /* Weekday (0-7 with 0 = 7 = Sunday) */
char *user; /* User to run it as (nil = root) */
char *cmd; /* Command to run */
time_t rtime; /* When next to run */
char do_mday; /* True iff mon or mday is not '*' */
char do_wday; /* True iff wday is not '*' */
char late; /* True iff the job is late */
char atjob; /* True iff it is an AT job */
pid_t pid; /* Process-id of job if nonzero */
} cronjob_t;
typedef struct crontab {
struct crontab *next;
char *file; /* Crontab name */
char *user; /* Owner if non-null */
time_t mtime; /* Last modified time */
cronjob_t *jobs; /* List of jobs in the file */
char *data; /* File data */
int current; /* True if current, i.e. file exists */
} crontab_t;
crontab_t *crontabs; /* All crontabs. */
/* A time as far in the future as possible. */
#define NEVER ((time_t) ((time_t) -1 < 0 ? LONG_MAX : ULONG_MAX))
/* Don't trust crontabs bigger than this: */
#define TAB_MAX ((sizeof(int) == 2 ? 8 : 128) * 1024)
/* Pid if no process running, or a pid value you'll never see. */
#define IDLE_PID ((pid_t) 0)
#define NO_PID ((pid_t) -1)
/* Bitmap operations. */
#define bit_set(map, n) ((void) ((map)[(n) >> 3] |= (1 << ((n) & 7))))
#define bit_clr(map, n) ((void) ((map)[(n) >> 3] &= ~(1 << ((n) & 7))))
#define bit_isset(map, n) (!!((map)[(n) >> 3] & (1 << ((n) & 7))))
/* Functions. */
void tab_parse(char *file, char *user);
void tab_find_atjob(char *atdir);
void tab_purge(void);
void tab_reap_job(pid_t pid);
void tab_reschedule(cronjob_t *job);
cronjob_t *tab_nextjob(void);
void tab_print(FILE *fp);
#endif /* TAB__H */
/*
* $PchId: tab.h,v 1.3 2000/07/17 07:57:27 philip Exp $
*/
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