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1c79356b 1/*
5ba3f43e 2 * Copyright (c) 2012-2017 Apple Inc. All rights reserved.
1c79356b 3 *
2d21ac55 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
316670eb 5 *
2d21ac55
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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.
316670eb 14 *
2d21ac55
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15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
316670eb 17 *
2d21ac55
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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
8f6c56a5
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20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
2d21ac55
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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.
316670eb 25 *
2d21ac55 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
1c79356b 27 */
1c79356b 28
316670eb 29#ifndef _NET_FLOWADV_H_
0a7de745 30#define _NET_FLOWADV_H_
1c79356b 31
39236c6e 32#ifdef KERNEL_PRIVATE
316670eb 33#include <sys/types.h>
39236c6e 34#include <sys/queue.h>
316670eb 35
5ba3f43e 36
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37#define FADV_SUCCESS 0 /* success */
38#define FADV_FLOW_CONTROLLED 1 /* regular flow control */
39#define FADV_SUSPENDED 2 /* flow control due to suspension */
1c79356b 40
316670eb 41struct flowadv {
0a7de745 42 int32_t code; /* FADV advisory code */
316670eb 43};
1c79356b 44
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45#ifdef BSD_KERNEL_PRIVATE
46struct flowadv_fcentry {
47 STAILQ_ENTRY(flowadv_fcentry) fce_link;
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48 u_int32_t fce_flowsrc_type; /* FLOWSRC values */
49 u_int32_t fce_flowid;
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50};
51
52STAILQ_HEAD(flowadv_fclist, flowadv_fcentry);
53
54__BEGIN_DECLS
55
56extern void flowadv_init(void);
57extern struct flowadv_fcentry *flowadv_alloc_entry(int);
58extern void flowadv_free_entry(struct flowadv_fcentry *);
59extern void flowadv_add(struct flowadv_fclist *);
39037602 60extern void flowadv_add_entry(struct flowadv_fcentry *);
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61
62__END_DECLS
316670eb 63
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64#endif /* BSD_KERNEL_PRIVATE */
65#endif /* KERNEL_PRIVATE */
316670eb 66#endif /* _NET_FLOWADV_H_ */