+/*
+ Bacula® - The Network Backup Solution
+
+ Copyright (C) 2001-2009 Free Software Foundation Europe e.V.
+
+ The main author of Bacula is Kern Sibbald, with contributions from
+ many others, a complete list can be found in the file AUTHORS.
+ This program is Free Software; you can redistribute it and/or
+ modify it under the terms of version three of the GNU Affero General Public
+ License as published by the Free Software Foundation and included
+ in the file LICENSE.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA.
+
+ Bacula® is a registered trademark of Kern Sibbald.
+ The licensor of Bacula is the Free Software Foundation Europe
+ (FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
+ Switzerland, email:ftf@fsfeurope.org.
+*/
/*
* Bacula work queue routines. Permits passing work to
* multiple threads.
*
* Version $Id$
*/
-/*
- Copyright (C) 2000, 2001, 2002 Kern Sibbald and John Walker
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of
- the License, or (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public
- License along with this program; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- MA 02111-1307, USA.
-
- */
-#ifndef __WORKQ_H
+#ifndef __WORKQ_H
#define __WORKQ_H 1
-/*
+/*
* Structure to keep track of work queue request
*/
typedef struct workq_ele_tag {
struct workq_ele_tag *next;
- void *data;
+ void *data;
} workq_ele_t;
-/*
+/*
* Structure describing a work queue
*/
typedef struct workq_tag {
- pthread_mutex_t mutex; /* queue access control */
- pthread_cond_t work; /* wait for work */
- pthread_attr_t attr; /* create detached threads */
- workq_ele_t *first, *last; /* work queue */
- int valid; /* queue initialized */
- int quit; /* workq should quit */
- int max_workers; /* max threads */
- int num_workers; /* current threads */
- int idle_workers; /* idle threads */
- void (*engine)(void *arg); /* user engine */
+ pthread_mutex_t mutex; /* queue access control */
+ pthread_cond_t work; /* wait for work */
+ pthread_attr_t attr; /* create detached threads */
+ workq_ele_t *first, *last; /* work queue */
+ int valid; /* queue initialized */
+ int quit; /* workq should quit */
+ int max_workers; /* max threads */
+ int num_workers; /* current threads */
+ int idle_workers; /* idle threads */
+ void *(*engine)(void *arg); /* user engine */
} workq_t;
#define WORKQ_VALID 0xdec1992
extern int workq_init(
- workq_t *wq,
- int threads, /* maximum threads */
- void (*engine)(void *) /* engine routine */
- );
+ workq_t *wq,
+ int threads, /* maximum threads */
+ void *(*engine)(void *) /* engine routine */
+ );
extern int workq_destroy(workq_t *wq);
-extern int workq_add(workq_t *wq, void *data);
+extern int workq_add(workq_t *wq, void *element, workq_ele_t **work_item, int priority);
+extern int workq_remove(workq_t *wq, workq_ele_t *work_item);
#endif /* __WORKQ_H */