pktbuf_static.h

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/*
 * Copyright (C) 2014-2015 Martine S. Lenders <m.lenders@fu-berlin.de>
 * Copyright (C) 2014-2021 Freie Universität Berlin
 *
 * 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 <sys/types.h>
 
#ifdef __cplusplus
extern "C" {
#endif

#define GNRC_PKTBUF_STATIC_ALIGN_MASK   (sizeof(_unused_t) - 1)

typedef struct _unused {
    struct _unused *next;   
    unsigned int size;      
} _unused_t;

static inline size_t _align(size_t size)
{
    return (size + GNRC_PKTBUF_STATIC_ALIGN_MASK) &
          ~(GNRC_PKTBUF_STATIC_ALIGN_MASK);
}
 
#ifdef __cplusplus
}
#endif