00b67f09dd
Also known as ISC bind. This import adds utilities such as host(1), dig(1), and nslookup(1), as well as many other tools and libraries. Change-Id: I035ca46e64f1965d57019e773f4ff0ef035e4aa3
144 lines
3.5 KiB
C
144 lines
3.5 KiB
C
/* $NetBSD: stats.h,v 1.5 2014/12/10 04:38:00 christos Exp $ */
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/*
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* Copyright (C) 2009, 2012 Internet Systems Consortium, Inc. ("ISC")
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
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* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
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* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
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* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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/* Id */
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#ifndef ISC_STATS_H
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#define ISC_STATS_H 1
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/*! \file isc/stats.h */
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#include <isc/types.h>
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ISC_LANG_BEGINDECLS
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/*%<
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* Flag(s) for isc_stats_dump().
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*/
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#define ISC_STATSDUMP_VERBOSE 0x00000001 /*%< dump 0-value counters */
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/*%<
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* Dump callback type.
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*/
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typedef void (*isc_stats_dumper_t)(isc_statscounter_t, isc_uint64_t, void *);
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isc_result_t
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isc_stats_create(isc_mem_t *mctx, isc_stats_t **statsp, int ncounters);
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/*%<
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* Create a statistics counter structure of general type. It counts a general
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* set of counters indexed by an ID between 0 and ncounters -1.
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*
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* Requires:
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*\li 'mctx' must be a valid memory context.
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*
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*\li 'statsp' != NULL && '*statsp' == NULL.
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*
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* Returns:
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*\li ISC_R_SUCCESS -- all ok
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*
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*\li anything else -- failure
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*/
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void
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isc_stats_attach(isc_stats_t *stats, isc_stats_t **statsp);
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/*%<
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* Attach to a statistics set.
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*
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* Requires:
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*\li 'stats' is a valid isc_stats_t.
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*
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*\li 'statsp' != NULL && '*statsp' == NULL
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*/
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void
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isc_stats_detach(isc_stats_t **statsp);
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/*%<
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* Detaches from the statistics set.
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*
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* Requires:
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*\li 'statsp' != NULL and '*statsp' is a valid isc_stats_t.
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*/
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int
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isc_stats_ncounters(isc_stats_t *stats);
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/*%<
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* Returns the number of counters contained in stats.
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*
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* Requires:
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*\li 'stats' is a valid isc_stats_t.
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*
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*/
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void
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isc_stats_increment(isc_stats_t *stats, isc_statscounter_t counter);
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/*%<
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* Increment the counter-th counter of stats.
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*
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* Requires:
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*\li 'stats' is a valid isc_stats_t.
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*
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*\li counter is less than the maximum available ID for the stats specified
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* on creation.
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*/
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void
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isc_stats_decrement(isc_stats_t *stats, isc_statscounter_t counter);
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/*%<
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* Decrement the counter-th counter of stats.
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*
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* Requires:
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*\li 'stats' is a valid isc_stats_t.
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*/
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void
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isc_stats_dump(isc_stats_t *stats, isc_stats_dumper_t dump_fn, void *arg,
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unsigned int options);
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/*%<
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* Dump the current statistics counters in a specified way. For each counter
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* in stats, dump_fn is called with its current value and the given argument
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* arg. By default counters that have a value of 0 is skipped; if options has
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* the ISC_STATSDUMP_VERBOSE flag, even such counters are dumped.
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*
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* Requires:
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*\li 'stats' is a valid isc_stats_t.
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*/
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void
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isc_stats_set(isc_stats_t *stats, isc_uint64_t val,
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isc_statscounter_t counter);
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/*%<
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* Set the given counter to the specfied value.
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*
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* Requires:
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*\li 'stats' is a valid isc_stats_t.
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*/
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void
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isc_stats_set(isc_stats_t *stats, isc_uint64_t val,
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isc_statscounter_t counter);
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/*%<
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* Set the given counter to the specfied value.
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*
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* Requires:
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*\li 'stats' is a valid isc_stats_t.
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*/
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ISC_LANG_ENDDECLS
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#endif /* ISC_STATS_H */
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