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/*
* Embedded Linux library
* Copyright (C) 2011-2015 Intel Corporation
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#ifndef __ELL_RINGBUF_H
#define __ELL_RINGBUF_H
#include <stdlib.h>
#include <stdarg.h>
#include <stdbool.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef void (*l_ringbuf_tracing_func_t)(const void *buf, size_t count,
void *user_data);
struct l_ringbuf;
struct l_ringbuf *l_ringbuf_new(size_t size);
void l_ringbuf_free(struct l_ringbuf *ringbuf);
bool l_ringbuf_set_input_tracing(struct l_ringbuf *ringbuf,
l_ringbuf_tracing_func_t callback, void *user_data);
size_t l_ringbuf_capacity(struct l_ringbuf *ringbuf);
size_t l_ringbuf_len(struct l_ringbuf *ringbuf);
size_t l_ringbuf_drain(struct l_ringbuf *ringbuf, size_t count);
void *l_ringbuf_peek(struct l_ringbuf *ringbuf, size_t offset,
size_t *len_nowrap);
ssize_t l_ringbuf_write(struct l_ringbuf *ringbuf, int fd);
size_t l_ringbuf_avail(struct l_ringbuf *ringbuf);
int l_ringbuf_printf(struct l_ringbuf *ringbuf, const char *format, ...)
__attribute__((format(printf, 2, 3)));
int l_ringbuf_vprintf(struct l_ringbuf *ringbuf, const char *format,
va_list ap)
__attribute__((format(printf, 2, 0)));
ssize_t l_ringbuf_read(struct l_ringbuf *ringbuf, int fd);
ssize_t l_ringbuf_append(struct l_ringbuf *ringbuf,
const void *data, size_t len);
#ifdef __cplusplus
}
#endif
#endif /* __ELL_RINGBUF_H */
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