File:  [DragonFly] / src / usr.sbin / cron / cron / job.c
Revision 1.3: download - view: text, annotated - select for diffs
Sun Nov 16 11:51:14 2003 UTC (11 years, 1 month ago) by eirikn
Branches: MAIN
CVS tags: HEAD
 * K&R function cleanup

    1: /* Copyright 1988,1990,1993,1994 by Paul Vixie
    2:  * All rights reserved
    3:  *
    4:  * Distribute freely, except: don't remove my name from the source or
    5:  * documentation (don't take credit for my work), mark your changes (don't
    6:  * get me blamed for your possible bugs), don't alter or remove this
    7:  * notice.  May be sold if buildable source is provided to buyer.  No
    8:  * warrantee of any kind, express or implied, is included with this
    9:  * software; use at your own risk, responsibility for damages (if any) to
   10:  * anyone resulting from the use of this software rests entirely with the
   11:  * user.
   12:  *
   13:  * Send bug reports, bug fixes, enhancements, requests, flames, etc., and
   14:  * I'll try to keep a version up to date.  I can be reached as follows:
   15:  * Paul Vixie          <paul@vix.com>          uunet!decwrl!vixie!paul
   16:  *
   17:  * $FreeBSD: src/usr.sbin/cron/cron/job.c,v 1.6 1999/08/28 01:15:50 peter Exp $
   18:  * $DragonFly: src/usr.sbin/cron/cron/job.c,v 1.3 2003/11/16 11:51:14 eirikn Exp $
   19:  */
   20: 
   21: #include "cron.h"
   22: 
   23: 
   24: typedef	struct _job {
   25: 	struct _job	*next;
   26: 	entry		*e;
   27: 	user		*u;
   28: } job;
   29: 
   30: 
   31: static job	*jhead = NULL, *jtail = NULL;
   32: 
   33: 
   34: void
   35: job_add(register entry *e, register user *u)
   36: {
   37: 	register job *j;
   38: 
   39: 	/* if already on queue, keep going */
   40: 	for (j=jhead; j; j=j->next)
   41: 		if (j->e == e && j->u == u) { return; }
   42: 
   43: 	/* build a job queue element */
   44: 	if ((j = (job*)malloc(sizeof(job))) == NULL)
   45: 		return;
   46: 	j->next = (job*) NULL;
   47: 	j->e = e;
   48: 	j->u = u;
   49: 
   50: 	/* add it to the tail */
   51: 	if (!jhead) { jhead=j; }
   52: 	else { jtail->next=j; }
   53: 	jtail = j;
   54: }
   55: 
   56: 
   57: int
   58: job_runqueue(void)
   59: {
   60: 	register job	*j, *jn;
   61: 	register int	run = 0;
   62: 
   63: 	for (j=jhead; j; j=jn) {
   64: 		do_command(j->e, j->u);
   65: 		jn = j->next;
   66: 		free(j);
   67: 		run++;
   68: 	}
   69: 	jhead = jtail = NULL;
   70: 	return run;
   71: }