2 * Bacula job queue routines.
4 * Kern Sibbald, July MMIII
6 * This code adapted from Bacula work queue code, which was
7 * adapted from "Programming with POSIX Threads", by
12 Bacula(R) - The Network Backup Solution
14 Copyright (C) 2000-2015 Kern Sibbald
15 Copyright (C) 2000-2014 Free Software Foundation Europe e.V.
17 The original author of Bacula is Kern Sibbald, with contributions
18 from many others, a complete list can be found in the file AUTHORS.
20 You may use this file and others of this release according to the
21 license defined in the LICENSE file, which includes the Affero General
22 Public License, v3.0 ("AGPLv3") and some additional permissions and
23 terms pursuant to its AGPLv3 Section 7.
25 This notice must be preserved when any source code is
26 conveyed and/or propagated.
28 Bacula(R) is a registered trademark of Kern Sibbald.
35 * Structure to keep track of job queue request
43 * Structure describing a work queue
46 pthread_mutex_t mutex; /* queue access control */
47 pthread_cond_t work; /* wait for work */
48 pthread_attr_t attr; /* create detached threads */
49 dlist *waiting_jobs; /* list of jobs waiting */
50 dlist *running_jobs; /* jobs running */
51 dlist *ready_jobs; /* jobs ready to run */
52 int valid; /* queue initialized */
53 bool quit; /* jobq should quit */
54 int max_workers; /* max threads */
55 int num_workers; /* current threads */
56 int idle_workers; /* idle threads */
57 void *(*engine)(void *arg); /* user engine */
60 #define JOBQ_VALID 0xdec1993
64 int threads, /* maximum threads */
65 void *(*engine)(void *) /* engine routine */
67 extern int jobq_destroy(jobq_t *wq);
68 extern int jobq_add(jobq_t *wq, JCR *jcr);
69 extern int jobq_remove(jobq_t *wq, JCR *jcr);