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 1.2 2003/06/17 04:29:53 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(e, u) 36 register entry *e; 37 register user *u; 38 { 39 register job *j; 40 41 /* if already on queue, keep going */ 42 for (j=jhead; j; j=j->next) 43 if (j->e == e && j->u == u) { return; } 44 45 /* build a job queue element */ 46 if ((j = (job*)malloc(sizeof(job))) == NULL) 47 return; 48 j->next = (job*) NULL; 49 j->e = e; 50 j->u = u; 51 52 /* add it to the tail */ 53 if (!jhead) { jhead=j; } 54 else { jtail->next=j; } 55 jtail = j; 56 } 57 58 59 int 60 job_runqueue() 61 { 62 register job *j, *jn; 63 register int run = 0; 64 65 for (j=jhead; j; j=jn) { 66 do_command(j->e, j->u); 67 jn = j->next; 68 free(j); 69 run++; 70 } 71 jhead = jtail = NULL; 72 return run; 73 } 74