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https://github.com/darlinghq/darling-xnu.git
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62 lines
2.4 KiB
C
62 lines
2.4 KiB
C
/*
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* Copyright (c) 2015 Apple Inc. All rights reserved.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. The rights granted to you under the License
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* may not be used to create, or enable the creation or redistribution of,
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* unlawful or unlicensed copies of an Apple operating system, or to
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* circumvent, violate, or enable the circumvention or violation of, any
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* terms of an Apple operating system software license agreement.
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*
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* Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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*/
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#ifndef _NET_NET_PERF_H_
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#define _NET_NET_PERF_H_
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#include <stdint.h>
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#ifdef KERNEL_PRIVATE
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#include <sys/time.h>
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#include <mach/boolean.h>
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#endif /* KERNEL_PRIVATE */
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/* five histogram bins are separated by four dividing "bars" */
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#define NET_PERF_BARS 4
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typedef struct net_perf {
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uint64_t np_total_pkts; /* total packets input or output during measurement */
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uint64_t np_total_usecs; /* microseconds elapsed during measurement */
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uint64_t np_hist1; /* histogram bin 1 */
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uint64_t np_hist2; /* histogram bin 2 */
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uint64_t np_hist3; /* histogram bin 3 */
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uint64_t np_hist4; /* histogram bin 4 */
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uint64_t np_hist5; /* histogram bin 5 */
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uint8_t np_hist_bars[NET_PERF_BARS];
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} net_perf_t;
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#ifdef KERNEL_PRIVATE
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void net_perf_initialize(net_perf_t *npp, uint64_t bins);
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void net_perf_start_time(net_perf_t *npp, struct timeval *tv);
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void net_perf_measure_time(net_perf_t *npp, struct timeval *start, uint64_t num_pkts);
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void net_perf_histogram(net_perf_t *npp, uint64_t num_pkts);
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boolean_t net_perf_validate_bins(uint64_t bins);
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#endif /* KERNEL_PRIVATE */
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#endif /* _NET_NET_PERF_H_ */
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