darling-xnu/bsd/net/flowadv.h
2023-05-16 21:41:14 -07:00

68 lines
2.3 KiB
C

/*
* Copyright (c) 2012-2020 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@
*/
#ifndef _NET_FLOWADV_H_
#define _NET_FLOWADV_H_
#ifdef KERNEL_PRIVATE
#include <sys/types.h>
#include <sys/queue.h>
#define FADV_SUCCESS 0 /* success */
#define FADV_FLOW_CONTROLLED 1 /* regular flow control */
#define FADV_SUSPENDED 2 /* flow control due to suspension */
struct flowadv {
int32_t code; /* FADV advisory code */
};
#ifdef BSD_KERNEL_PRIVATE
struct flowadv_fcentry {
STAILQ_ENTRY(flowadv_fcentry) fce_link;
u_int32_t fce_flowsrc_type; /* FLOWSRC values */
u_int32_t fce_flowid;
};
STAILQ_HEAD(flowadv_fclist, flowadv_fcentry);
__BEGIN_DECLS
extern void flowadv_init(void);
extern struct flowadv_fcentry *flowadv_alloc_entry(int);
extern void flowadv_free_entry(struct flowadv_fcentry *);
extern void flowadv_add(struct flowadv_fclist *);
extern void flowadv_add_entry(struct flowadv_fcentry *);
extern void flowadv_reap_caches(boolean_t);
__END_DECLS
#endif /* BSD_KERNEL_PRIVATE */
#endif /* KERNEL_PRIVATE */
#endif /* _NET_FLOWADV_H_ */