priority_pktqueue.h

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/*
 * Copyright (C) 2015 Daniel Krebs
 *               2016 INRIA
 *
 * 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.
 */

#ifndef NET_GNRC_PRIORITY_PKTQUEUE_H
#define NET_GNRC_PRIORITY_PKTQUEUE_H

#include <stdint.h>

#include "priority_queue.h"
#include "net/gnrc/pkt.h"

#ifdef __cplusplus
extern "C" {
#endif

typedef struct gnrc_priority_pktqueue_node {
    struct gnrc_priority_pktqueue_node *next;   
    uint32_t priority;                          
    gnrc_pktsnip_t *pkt;                        
} gnrc_priority_pktqueue_node_t;

typedef priority_queue_t gnrc_priority_pktqueue_t;

#define PRIORITY_PKTQUEUE_NODE_INIT(priority, pkt) { NULL, priority, pkt }

#define PRIORITY_PKTQUEUE_INIT { NULL }

static inline void gnrc_priority_pktqueue_node_init(gnrc_priority_pktqueue_node_t *node,
                                                    uint32_t priority,
                                                    gnrc_pktsnip_t *pkt)
{
    node->next = NULL;
    node->priority = priority;
    node->pkt = pkt;
}

static inline void gnrc_priority_pktqueue_init(gnrc_priority_pktqueue_t *queue)
{
    gnrc_priority_pktqueue_t qn = PRIORITY_PKTQUEUE_INIT;

    *queue = qn;
}

uint32_t gnrc_priority_pktqueue_length(gnrc_priority_pktqueue_t *queue);

void gnrc_priority_pktqueue_flush(gnrc_priority_pktqueue_t *queue);

gnrc_pktsnip_t *gnrc_priority_pktqueue_pop(gnrc_priority_pktqueue_t *queue);

gnrc_pktsnip_t *gnrc_priority_pktqueue_head(gnrc_priority_pktqueue_t *queue);

void gnrc_priority_pktqueue_push(gnrc_priority_pktqueue_t *queue,
                                 gnrc_priority_pktqueue_node_t *node);

#ifdef __cplusplus
}
#endif

#endif /* NET_GNRC_PRIORITY_PKTQUEUE_H */