xref: /xnu-8020.121.3/bsd/net/pktsched/pktsched_netem.h (revision fdd8201d7b966f0c3ea610489d29bd841d358941)
1 /*
2  * Copyright (c) 2018 Apple Inc. All rights reserved.
3  *
4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5  *
6  * This file contains Original Code and/or Modifications of Original Code
7  * as defined in and that are subject to the Apple Public Source License
8  * Version 2.0 (the 'License'). You may not use this file except in
9  * compliance with the License. The rights granted to you under the License
10  * may not be used to create, or enable the creation or redistribution of,
11  * unlawful or unlicensed copies of an Apple operating system, or to
12  * circumvent, violate, or enable the circumvention or violation of, any
13  * terms of an Apple operating system software license agreement.
14  *
15  * Please obtain a copy of the License at
16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
17  *
18  * The Original Code and all software distributed under the License are
19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23  * Please see the License for the specific language governing rights and
24  * limitations under the License.
25  *
26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27  */
28 
29 #define NETEM_MAX_BATCH_SIZE    32
30 
31 __BEGIN_DECLS
32 
33 extern int netem_config(struct netem **ne, const char *name,
34     const struct if_netem_params *p, void *output_handle,
35     int (*output)(void *handle, pktsched_pkt_t *pkts, uint32_t n_pkts),
36     uint32_t output_max_batch_size);
37 extern void netem_get_params(struct netem *ne, struct if_netem_params *p);
38 extern void netem_destroy(struct netem *ne);
39 extern int netem_enqueue(struct netem *ne, classq_pkt_t *p, boolean_t *pdrop);
40 
41 __END_DECLS
42