buffer.h

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/* SPDX-License-Identifier: MIT */
/*
 * Author: Andreas Werner <kernel@andy89.org>
 * Date: 2016
 */
#ifndef SHARED_H_
#define SHARED_H_
#include <FreeRTOS.h>
#include <stdint.h>
#include <stdbool.h>
#define SHARED_MAGIC 0x42424343
 
struct buffer_base;
struct buffer;
#define BUFFER_OPERATION_NOT_SUPPORTED -1
 
#define BUFFER_NO_SPACE_LEFT -2
 
#define BUFFER_EINVAL -3 
 
struct buffer *buffer_init(struct buffer_base *base, uint32_t len, uint32_t sizeOfEntry, bool readOnly, uint32_t irqnr);
int32_t buffer_deinit(struct buffer *buffer);
int32_t buffer_is_full(struct buffer *buffer);
bool buffer_empty(struct buffer *buffer);
int32_t buffer_write(struct buffer *buffer, uint8_t *data, int32_t size);
int32_t buffer_read(struct buffer *buffer, uint8_t *data, int32_t size, TickType_t waittime);
#endif