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/*
* ALSA sequencer Queue handling
* Copyright (c) 1998 by Frank van de Pol <F.K.W.van.de.Pol@inter.nl.net>
*
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#ifndef __SND_SEQ_QUEUE_H
#define __SND_SEQ_QUEUE_H
#include "seq_memory.h"
#include "seq_prioq.h"
#include "seq_timer.h"
#define SEQ_QUEUE_NO_OWNER (-1)
typedef struct {
prioq_t *tickq; /* midi tick event queue */
prioq_t *timeq; /* real-time event queue */
timer_t *timer; /* time keeper for this queue */
int owner; /* client that 'owns' the timer */
int locked:1; /* timer is only accesibble by owner if set */
} queue_t;
/* init queues structure */
void snd_seq_queues_init(int num);
/* delete queues */
void snd_seq_queues_delete(void);
/* create new queue (constructor) */
extern queue_t *snd_seq_queue_new(void);
/* delete queue (destructor) */
extern void snd_seq_queue_delete(queue_t **q);
/* enqueue a event received from one the clients */
extern void snd_seq_enqueue_event(snd_seq_event_cell_t *cell);
/* return pointer to queue structure for specified id */
queue_t *queueptr(int queueid);
/* check queues and dispatch events */
void snd_seq_check_queues(void);
/* access to queue's parameters */
extern int snd_seq_queue_check_access(int queueid, int client);
extern void snd_seq_queue_timer_stop(int queueid, int client);
extern void snd_seq_queue_timer_start(int queueid, int client);
extern void snd_seq_queue_timer_continue(int queueid, int client);
extern void snd_seq_queue_timer_set_tempo(int queueid, int client, int tempo);
extern void snd_seq_queue_timer_set_ppq(int queueid, int client,int ppq);
extern void snd_seq_queue_set_owner(int queueid, int client);
extern void snd_seq_queue_set_locked(int queueid, int client, int locked);
#endif
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