neterr.h

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/*
 * Copyright (C) 2015 Martine Lenders <mlenders@inf.fu-berlin.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 <errno.h>
#include <stdint.h>
 
#include "msg.h"
#include "net/gnrc/pkt.h"
#include "thread.h"
 
#ifdef __cplusplus
extern "C" {
#endif

#define GNRC_NETERR_MSG_TYPE        (0x0206)

#define GNRC_NETERR_SUCCESS         (0)

#ifdef MODULE_GNRC_NETERR
static inline void gnrc_neterr_report(gnrc_pktsnip_t *pkt, uint32_t err)
{
    if (pkt->err_sub != KERNEL_PID_UNDEF) {
        msg_t msg;
 
        msg.type = GNRC_NETERR_MSG_TYPE;
        msg.content.value = err;
 
        msg_send(&msg, pkt->err_sub);
    }
}
#else
#define gnrc_neterr_report(pkt, err)  (void)pkt; (void)err
#endif

#ifdef MODULE_GNRC_NETERR
static inline int gnrc_neterr_reg(gnrc_pktsnip_t *pkt)
{
    if (pkt->err_sub != KERNEL_PID_UNDEF) {
        return EALREADY;
    }
    pkt->err_sub = thread_getpid();
    return 0;
}
#else
#define gnrc_neterr_reg(pkt)  (0)
#endif
 
#ifdef __cplusplus
}
#endif