/*
 * Copyright (c) 2018-2021 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,
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 */

#define NETEM_MAX_BATCH_SIZE    32

__BEGIN_DECLS

struct kern_pbufpool;

typedef int (netem_output_func_t)(void *handle, pktsched_pkt_t *pkts,
    uint32_t n_pkts);

extern int netem_config(struct netem **ne, const char *name, struct ifnet *ifp,
    const struct if_netem_params *p, void *output_handle,
    netem_output_func_t *output_func, uint32_t output_max_batch_size);
extern void netem_get_params(struct netem *ne, struct if_netem_params *p);
extern void netem_destroy(struct netem *ne);
extern int netem_enqueue(struct netem *ne, classq_pkt_t *p, bool *pdrop);

__END_DECLS