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 1.4 2004/03/10 18:27:26 dillon 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(entry *e, user *u) 36 { 37 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 = 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 job *j, *jn; 61 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 } 72