/*
* Copyright (c) 2024 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. The rights granted to you under the License
* may not be used to create, or enable the creation or redistribution of,
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
*
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* mblist.h
*/
#ifndef _NET_MBLIST_H
#define _NET_MBLIST_H
#include <sys/kpi_mbuf.h>
#include <stdint.h>
/*
* Type: mblist
* Purpose:
* Simple type to store head, tail pointers for a list of mbuf packets.
*/
typedef struct {
mbuf_t head;
mbuf_t tail;
uint32_t bytes;
uint32_t count;
} mblist, * mblist_t;
static inline void
mblist_init(mblist_t list)
{
bzero(list, sizeof(*list));
}
static inline void
mblist_append(mblist_t list, mbuf_t m)
{
if (list->head == NULL) {
list->head = m;
} else {
list->tail->m_nextpkt = m;
}
list->tail = m;
list->count++;
list->bytes += mbuf_pkthdr_len(m);
}
static inline void
mblist_append_list(mblist_t list, mblist append)
{
VERIFY(append.head != NULL);
if (list->head == NULL) {
*list = append;
} else {
VERIFY(list->tail != NULL);
list->tail->m_nextpkt = append.head;
list->tail = append.tail;
list->count += append.count;
list->bytes += append.bytes;
}
}
#endif /* _NET_MBLIST_H */