Diego FronzaandOndřej Surý
d5cc3ed381
This variable will report the maximum number of simultaneous tcp clients
that BIND has served while running.
It can be verified by running rndc status, then inspect "tcp high-water:
count", or by generating statistics file, rndc stats, then inspect the
line with "TCP connection high-water" text.
The tcp-highwater variable is atomically updated based on an existing
tcp-quota system handled in ns/client.c.
(cherry picked from commit 66fe8627de)
136 lines
3.3 KiB
C
136 lines
3.3 KiB
C
/*
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* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* See the COPYRIGHT file distributed with this work for additional
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* information regarding copyright ownership.
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*/
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#ifndef NS_STATS_H
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#define NS_STATS_H 1
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/*! \file include/ns/stats.h */
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#include <ns/types.h>
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/*%
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* Server statistics counters. Used as isc_statscounter_t values.
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*/
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enum {
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ns_statscounter_requestv4 = 0,
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ns_statscounter_requestv6 = 1,
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ns_statscounter_edns0in = 2,
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ns_statscounter_badednsver = 3,
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ns_statscounter_tsigin = 4,
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ns_statscounter_sig0in = 5,
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ns_statscounter_invalidsig = 6,
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ns_statscounter_requesttcp = 7,
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ns_statscounter_authrej = 8,
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ns_statscounter_recurserej = 9,
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ns_statscounter_xfrrej = 10,
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ns_statscounter_updaterej = 11,
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ns_statscounter_response = 12,
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ns_statscounter_truncatedresp = 13,
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ns_statscounter_edns0out = 14,
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ns_statscounter_tsigout = 15,
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ns_statscounter_sig0out = 16,
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ns_statscounter_success = 17,
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ns_statscounter_authans = 18,
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ns_statscounter_nonauthans = 19,
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ns_statscounter_referral = 20,
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ns_statscounter_nxrrset = 21,
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ns_statscounter_servfail = 22,
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ns_statscounter_formerr = 23,
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ns_statscounter_nxdomain = 24,
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ns_statscounter_recursion = 25,
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ns_statscounter_duplicate = 26,
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ns_statscounter_dropped = 27,
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ns_statscounter_failure = 28,
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ns_statscounter_xfrdone = 29,
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ns_statscounter_updatereqfwd = 30,
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ns_statscounter_updaterespfwd = 31,
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ns_statscounter_updatefwdfail = 32,
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ns_statscounter_updatedone = 33,
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ns_statscounter_updatefail = 34,
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ns_statscounter_updatebadprereq = 35,
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ns_statscounter_recursclients = 36,
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ns_statscounter_dns64 = 37,
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ns_statscounter_ratedropped = 38,
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ns_statscounter_rateslipped = 39,
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ns_statscounter_rpz_rewrites = 40,
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ns_statscounter_udp = 41,
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ns_statscounter_tcp = 42,
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ns_statscounter_nsidopt = 43,
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ns_statscounter_expireopt = 44,
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ns_statscounter_otheropt = 45,
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ns_statscounter_ecsopt = 46,
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ns_statscounter_padopt = 47,
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ns_statscounter_keepaliveopt = 48,
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ns_statscounter_nxdomainredirect = 49,
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ns_statscounter_nxdomainredirect_rlookup = 50,
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ns_statscounter_cookiein = 51,
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ns_statscounter_cookiebadsize = 52,
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ns_statscounter_cookiebadtime = 53,
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ns_statscounter_cookienomatch = 54,
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ns_statscounter_cookiematch = 55,
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ns_statscounter_cookienew = 56,
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ns_statscounter_badcookie = 57,
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ns_statscounter_nxdomainsynth = 58,
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ns_statscounter_nodatasynth = 59,
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ns_statscounter_wildcardsynth = 60,
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ns_statscounter_trystale = 61,
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ns_statscounter_usedstale = 62,
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ns_statscounter_prefetch = 63,
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ns_statscounter_keytagopt = 64,
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ns_statscounter_tcphighwater = 65,
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ns_statscounter_max = 66,
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};
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void
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ns_stats_attach(ns_stats_t *stats, ns_stats_t **statsp);
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void
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ns_stats_detach(ns_stats_t **statsp);
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isc_result_t
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ns_stats_create(isc_mem_t *mctx, int ncounters, ns_stats_t **statsp);
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void
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ns_stats_increment(ns_stats_t *stats, isc_statscounter_t counter);
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void
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ns_stats_decrement(ns_stats_t *stats, isc_statscounter_t counter);
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isc_stats_t *
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ns_stats_get(ns_stats_t *stats);
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void ns_stats_update_if_greater(ns_stats_t *stats,
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isc_statscounter_t counter,
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isc_statscounter_t value);
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isc_statscounter_t
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ns_stats_get_counter(ns_stats_t *stats, isc_statscounter_t counter);
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#endif /* NS_STATS_H */
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