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2289326673
Since they are never changed it does not make sense to have them in the writeable .data section, just make sure to add const to the ops member in the structure definitions so that there are no extra warnings added. Signed-off-by: Diego E. 'Flameeyes' Pettenò <flameeyes@gmail.com>
97 lines
4.1 KiB
C
97 lines
4.1 KiB
C
/*
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* Sequencer Interface - definition of sequencer event handler
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* Copyright (c) 2000 by Jaroslav Kysela <perex@perex.cz>
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* Abramo Bagnara <abramo@alsa-project.org>
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*
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*
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* This library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* This program 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 Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#ifndef __SEQ_LOCAL_H
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#define __SEQ_LOCAL_H
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#include <stdio.h>
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#include <stdlib.h>
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#include <limits.h>
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#include "local.h"
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#define SND_SEQ_OBUF_SIZE (16*1024) /* default size */
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#define SND_SEQ_IBUF_SIZE 500 /* in event_size aligned */
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#define DEFAULT_TMPBUF_SIZE 20
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typedef struct sndrv_seq_queue_client snd_seq_queue_client_t;
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typedef struct {
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int (*close)(snd_seq_t *seq);
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int (*nonblock)(snd_seq_t *seq, int nonblock);
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int (*system_info)(snd_seq_t *seq, snd_seq_system_info_t * info);
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int (*get_client_info)(snd_seq_t *seq, snd_seq_client_info_t * info);
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int (*set_client_info)(snd_seq_t *seq, snd_seq_client_info_t * info);
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int (*create_port)(snd_seq_t *seq, snd_seq_port_info_t * port);
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int (*delete_port)(snd_seq_t *seq, snd_seq_port_info_t * port);
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int (*get_port_info)(snd_seq_t *seq, snd_seq_port_info_t * info);
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int (*set_port_info)(snd_seq_t *seq, snd_seq_port_info_t * info);
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int (*get_port_subscription)(snd_seq_t *seq, snd_seq_port_subscribe_t * sub);
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int (*subscribe_port)(snd_seq_t *seq, snd_seq_port_subscribe_t * sub);
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int (*unsubscribe_port)(snd_seq_t *seq, snd_seq_port_subscribe_t * sub);
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int (*query_port_subscribers)(snd_seq_t *seq, snd_seq_query_subscribe_t * subs);
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int (*get_queue_status)(snd_seq_t *seq, snd_seq_queue_status_t * status);
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int (*get_queue_tempo)(snd_seq_t *seq, snd_seq_queue_tempo_t * tempo);
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int (*set_queue_tempo)(snd_seq_t *seq, snd_seq_queue_tempo_t * tempo);
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int (*get_queue_timer)(snd_seq_t *seq, snd_seq_queue_timer_t * timer);
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int (*set_queue_timer)(snd_seq_t *seq, snd_seq_queue_timer_t * timer);
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int (*get_queue_client)(snd_seq_t *seq, snd_seq_queue_client_t * client);
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int (*set_queue_client)(snd_seq_t *seq, snd_seq_queue_client_t * client);
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int (*create_queue)(snd_seq_t *seq, snd_seq_queue_info_t *info);
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int (*delete_queue)(snd_seq_t *seq, snd_seq_queue_info_t *info);
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int (*get_queue_info)(snd_seq_t *seq, snd_seq_queue_info_t *info);
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int (*set_queue_info)(snd_seq_t *seq, snd_seq_queue_info_t *info);
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int (*get_named_queue)(snd_seq_t *seq, snd_seq_queue_info_t *info);
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ssize_t (*write)(snd_seq_t *seq, void *buf, size_t len);
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ssize_t (*read)(snd_seq_t *seq, void *buf, size_t len);
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int (*remove_events)(snd_seq_t *seq, snd_seq_remove_events_t *rmp);
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int (*get_client_pool)(snd_seq_t *seq, snd_seq_client_pool_t *info);
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int (*set_client_pool)(snd_seq_t *seq, snd_seq_client_pool_t *info);
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int (*query_next_client)(snd_seq_t *seq, snd_seq_client_info_t *info);
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int (*query_next_port)(snd_seq_t *seq, snd_seq_port_info_t *info);
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} snd_seq_ops_t;
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struct _snd_seq {
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char *name;
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snd_seq_type_t type;
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int streams;
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int mode;
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int poll_fd;
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void *dl_handle;
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const snd_seq_ops_t *ops;
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void *private_data;
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int client; /* client number */
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/* buffers */
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char *obuf; /* output buffer */
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size_t obufsize; /* output buffer size */
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size_t obufused; /* output buffer used size */
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snd_seq_event_t *ibuf; /* input buffer */
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size_t ibufptr; /* current pointer of input buffer */
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size_t ibuflen; /* queued length */
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size_t ibufsize; /* input buffer size */
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snd_seq_event_t *tmpbuf; /* temporary event for extracted event */
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size_t tmpbufsize; /* size of errbuf */
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};
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int snd_seq_hw_open(snd_seq_t **handle, const char *name, int streams, int mode);
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#endif
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