isrpipe.h

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/*
 * Copyright (C) 2016 Kaspar Schleiser <kaspar@schleiser.de>
 *
 * This file is subject to the terms and conditions of the GNU Lesser
 * General Public License v2.1. See the file LICENSE in the top level
 * directory for more details.
 */
 
#pragma once

 
#include <stdint.h>
 
#include "mutex.h"
#include "tsrb.h"
 
#ifdef __cplusplus
extern "C" {
#endif

typedef struct {
    tsrb_t tsrb;        
    mutex_t mutex;      
} isrpipe_t;

#define ISRPIPE_INIT(buf) { .mutex = MUTEX_INIT_LOCKED, \
                            .tsrb = TSRB_INIT(buf) }

void isrpipe_init(isrpipe_t *isrpipe, uint8_t *buf, size_t bufsize);

int isrpipe_write_one(isrpipe_t *isrpipe, uint8_t c);

int isrpipe_write(isrpipe_t *isrpipe, const uint8_t *buf, size_t n);

int isrpipe_read(isrpipe_t *isrpipe, uint8_t *buf, size_t count);
 
#ifdef __cplusplus
}
#endif