119 lines
2.5 KiB
C
119 lines
2.5 KiB
C
/* GMR-1 RT framework: Sample Buffer with producer/consumer model */
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/* (C) 2011-2019 by Sylvain Munaut <tnt@246tNt.com>
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* All Rights Reserved
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (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 Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __RTFWK_SAMPBUF_H__
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#define __RTFWK_SAMPBUF_H__
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#include <complex.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <osmocom/core/linuxlist.h>
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#include "ringbuf.h"
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/* Sample Actor */
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/* ------------ */
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struct sample_actor;
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struct sample_actor_desc {
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const char *name;
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int (*init)(struct sample_actor *sc, void *params);
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void (*fini)(struct sample_actor *sc);
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int (*work)(struct sample_actor *sc,
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float complex *data, unsigned int len);
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void (*stat)(struct sample_actor *sc, FILE *fh);
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int priv_size;
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};
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struct sample_actor {
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/* List */
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struct llist_head list;
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/* Desc */
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const struct sample_actor_desc *desc;
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/* State tracking */
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uint64_t time;
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/* Private data */
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void *priv;
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};
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struct sample_actor *
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sact_alloc(const struct sample_actor_desc *desc, void *params);
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void
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sact_free(struct sample_actor *sact);
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/* Sample Buffer */
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/* ------------- */
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#define RB_LEN (1 << 24) /* 16 Mb */
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struct sample_buf {
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/* Channels */
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int n_chans;
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/* Per-Channel data */
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struct {
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/* Underlying storage */
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struct osmo_ringbuf *rb;
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/* Time/Sample tracking */
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uint64_t wtime;
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uint64_t rtime;
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/* Producer */
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struct sample_actor *producer;
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/* Consumers */
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struct llist_head consumers;
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} chans[0];
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};
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struct sample_buf *
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sbuf_alloc(int n_chans);
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void
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sbuf_free(struct sample_buf *sbuf);
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struct sample_actor *
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sbuf_set_producer(struct sample_buf *sbuf, int chan_id,
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const struct sample_actor_desc *desc, void *params);
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struct sample_actor *
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sbuf_add_consumer(struct sample_buf *sbuf, int chan_id,
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const struct sample_actor_desc *desc, void *params);
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int sbuf_work(struct sample_buf *sbuf);
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#endif /* __RTFWK_SAMPBUF_H__ */
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