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108 lines
3.7 KiB
108 lines
3.7 KiB
/*
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* $Id$
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*
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* Copyright (C) 2012 Smile Communications, jason.penton@smilecoms.com
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* Copyright (C) 2012 Smile Communications, richard.good@smilecoms.com
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*
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* The initial version of this code was written by Dragos Vingarzan
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* (dragos(dot)vingarzan(at)fokus(dot)fraunhofer(dot)de and the
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* Fruanhofer Institute. It was and still is maintained in a separate
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* branch of the original SER. We are therefore migrating it to
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* Kamailio/SR and look forward to maintaining it from here on out.
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* 2011/2012 Smile Communications, Pty. Ltd.
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* ported/maintained/improved by
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* Jason Penton (jason(dot)penton(at)smilecoms.com and
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* Richard Good (richard(dot)good(at)smilecoms.com) as part of an
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* effort to add full IMS support to Kamailio/SR using a new and
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* improved architecture
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*
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* NB: Alot of this code was originally part of OpenIMSCore,
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* FhG Fokus.
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* Copyright (C) 2004-2006 FhG Fokus
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* Thanks for great work! This is an effort to
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* break apart the various CSCF functions into logically separate
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* components. We hope this will drive wider use. We also feel
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* that in this way the architecture is more complete and thereby easier
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* to manage in the Kamailio/SR environment
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*
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* This file is part of Kamailio, a free SIP server.
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*
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* Kamailio is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version
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*
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* Kamailio is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#ifndef __WORKER_H
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#define __WORKER_H
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#include "peer.h"
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#include "diameter.h"
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#include "utils.h"
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/** function to be called on worker initialization */
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typedef int (*worker_init_function)(int rank);
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/** task element */
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typedef struct _task_t {
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peer *p; /**< peer that the message was received from */
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AAAMessage *msg; /**< diameter message received */
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} task_t;
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/** task queue */
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typedef struct {
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gen_lock_t *lock; /**< lock for task queue operations */
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int start; /**< start position in the queue array (index of oldest task) */
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int end; /**< end position in the queue array (index of the youngest task) */
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int max; /**< size of the queue array */
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task_t *queue; /**< array holding the tasks */
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gen_sem_t *empty; /**< id of semaphore for signaling an empty queue */
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gen_sem_t *full; /**< id of semaphore for signaling an full queue */
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} task_queue_t;
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/** callback function to be called on message processing */
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typedef int (*cdp_cb_f)(peer *p,AAAMessage *msg,void* ptr);
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/** callback element for message processing */
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typedef struct _cdp_cb_t{
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cdp_cb_f cb; /**< callback function to be called on event */
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void **ptr; /**< generic pointer to be passed to the callback */
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struct _cdp_cb_t *next; /**< next callback in the list */
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struct _cdp_cb_t *prev; /**< previous callback in the list */
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} cdp_cb_t;
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/** list of callback elements for message processing */
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typedef struct {
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cdp_cb_t *head; /**< first element in the list */
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cdp_cb_t *tail; /**< last element in the list */
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} cdp_cb_list_t;
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void worker_init();
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void worker_destroy();
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int cb_add(cdp_cb_f cb,void *ptr);
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void cb_remove(cdp_cb_t *cb);
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int put_task(peer *p,AAAMessage *msg);
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task_t take_task();
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void worker_poison_queue();
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void worker_process(int id);
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#endif
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