/* * Copyright (c) 2015 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_NET_PERF_H_ #define _NET_NET_PERF_H_ #include <stdint.h> #ifdef KERNEL_PRIVATE #include <sys/time.h> #include <mach/boolean.h> #endif /* KERNEL_PRIVATE */ /* five histogram bins are separated by four dividing "bars" */ #define NET_PERF_BARS 4 typedef struct net_perf { uint64_t np_total_pkts; /* total packets input or output during measurement */ uint64_t np_total_usecs; /* microseconds elapsed during measurement */ uint64_t np_hist1; /* histogram bin 1 */ uint64_t np_hist2; /* histogram bin 2 */ uint64_t np_hist3; /* histogram bin 3 */ uint64_t np_hist4; /* histogram bin 4 */ uint64_t np_hist5; /* histogram bin 5 */ uint8_t np_hist_bars[NET_PERF_BARS]; } net_perf_t; #ifdef KERNEL_PRIVATE void net_perf_initialize(net_perf_t *npp, uint64_t bins); void net_perf_start_time(net_perf_t *npp, struct timeval *tv); void net_perf_measure_time(net_perf_t *npp, struct timeval *start, uint64_t num_pkts); void net_perf_histogram(net_perf_t *npp, uint64_t num_pkts); boolean_t net_perf_validate_bins(uint64_t bins); #endif /* KERNEL_PRIVATE */ #endif /* _NET_NET_PERF_H_ */