mirror of https://gerrit.osmocom.org/simtrace2
54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
/* Ring buffer
|
|
*
|
|
* 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.
|
|
*/
|
|
#ifndef SIMTRACE_RINGBUF_H
|
|
#define SIMTRACE_RINGBUF_H
|
|
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
#include <sys/types.h>
|
|
|
|
#define RING_BUFLEN 1024
|
|
|
|
typedef struct ringbuf {
|
|
uint8_t buf[RING_BUFLEN];
|
|
size_t ird;
|
|
size_t iwr;
|
|
} ringbuf;
|
|
|
|
void rbuf_reset(volatile ringbuf * rb);
|
|
uint8_t rbuf_read(volatile ringbuf * rb);
|
|
uint8_t rbuf_peek(volatile ringbuf * rb);
|
|
int rbuf_write(volatile ringbuf * rb, uint8_t item);
|
|
bool rbuf_is_empty(volatile ringbuf * rb);
|
|
bool rbuf_is_full(volatile ringbuf * rb);
|
|
|
|
|
|
/* same as above but with 16bit values instead of 8bit */
|
|
|
|
#define RING16_BUFLEN 512
|
|
|
|
typedef struct ringbuf16 {
|
|
uint16_t buf[RING16_BUFLEN];
|
|
size_t ird;
|
|
size_t iwr;
|
|
} ringbuf16;
|
|
|
|
void rbuf16_reset(volatile ringbuf16 * rb);
|
|
uint16_t rbuf16_read(volatile ringbuf16 * rb);
|
|
uint16_t rbuf16_peek(volatile ringbuf16 * rb);
|
|
int rbuf16_write(volatile ringbuf16 * rb, uint16_t item);
|
|
bool rbuf16_is_empty(volatile ringbuf16 * rb);
|
|
bool rbuf16_is_full(volatile ringbuf16 * rb);
|
|
|
|
#endif /* end of include guard: SIMTRACE_RINGBUF_H */
|