45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
/**
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* Copyright 2022 Colin Lam, Ploopy Corporation
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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 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 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, see <http://www.gnu.org/licenses/>.
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*
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* SPECIAL THANKS TO:
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* @miketeachman (github.com/miketeachman)
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* @jimmo (github.com/jimmo)
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* @dlech (github.com/dlech)
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* for their exceptional work on the I2S library for the rp2 port of the
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* Micropython project (github.com/micropython/micropython).
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*/
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#ifndef RINGBUF_H
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#define RINGBUF_H
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#include "pico/stdlib.h"
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typedef struct _ring_buf_t {
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uint8_t *buffer;
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size_t head;
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size_t tail;
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size_t size;
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} ring_buf_t;
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void ringbuf_init(ring_buf_t *, uint8_t *, size_t);
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bool ringbuf_push(ring_buf_t *, uint8_t );
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bool ringbuf_pop(ring_buf_t *, uint8_t *);
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bool ringbuf_is_empty(ring_buf_t *);
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bool ringbuf_is_full(ring_buf_t *);
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size_t ringbuf_available_data(ring_buf_t *);
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size_t ringbuf_available_space(ring_buf_t *);
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#endif |