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/*
* Copyright (C) 2004-2008 Internet Systems Consortium, Inc. ("ISC")
* Copyright (C) 2000, 2001 Internet Software Consortium.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: stats.h,v 1.18 2008/09/08 05:59:11 marka Exp $ */
#ifndef DNS_STATS_H
#define DNS_STATS_H 1
/*! \file dns/stats.h */
#include <dns/types.h>
/*%
* Statistics counters. Used as dns_statscounter_t values.
*/
enum {
/*%
* Resolver statistics counters.
*/
dns_resstatscounter_queryv4 = 0,
dns_resstatscounter_queryv6 = 1,
dns_resstatscounter_responsev4 = 2,
dns_resstatscounter_responsev6 = 3,
dns_resstatscounter_nxdomain = 4,
dns_resstatscounter_servfail = 5,
dns_resstatscounter_formerr = 6,
dns_resstatscounter_othererror = 7,
dns_resstatscounter_edns0fail = 8,
dns_resstatscounter_mismatch = 9,
dns_resstatscounter_truncated = 10,
dns_resstatscounter_lame = 11,
dns_resstatscounter_retry = 12,
dns_resstatscounter_gluefetchv4 = 13,
dns_resstatscounter_gluefetchv6 = 14,
dns_resstatscounter_gluefetchv4fail = 15,
dns_resstatscounter_gluefetchv6fail = 16,
dns_resstatscounter_val = 17,
dns_resstatscounter_valsuccess = 18,
dns_resstatscounter_valnegsuccess = 19,
dns_resstatscounter_valfail = 20,
dns_resstatscounter_max = 21,
/*%
* Zone statistics counters.
*/
dns_zonestatscounter_notifyoutv4 = 0,
dns_zonestatscounter_notifyoutv6 = 1,
dns_zonestatscounter_notifyinv4 = 2,
dns_zonestatscounter_notifyinv6 = 3,
dns_zonestatscounter_notifyrej = 4,
dns_zonestatscounter_soaoutv4 = 5,
dns_zonestatscounter_soaoutv6 = 6,
dns_zonestatscounter_axfrreqv4 = 7,
dns_zonestatscounter_axfrreqv6 = 8,
dns_zonestatscounter_ixfrreqv4 = 9,
dns_zonestatscounter_ixfrreqv6 = 10,
dns_zonestatscounter_xfrsuccess = 11,
dns_zonestatscounter_xfrfail = 12,
dns_zonestatscounter_max = 13,
/*%
* Query statistics counters (obsolete).
*/
dns_statscounter_success = 0, /*%< Successful lookup */
dns_statscounter_referral = 1, /*%< Referral result */
dns_statscounter_nxrrset = 2, /*%< NXRRSET result */
dns_statscounter_nxdomain = 3, /*%< NXDOMAIN result */
dns_statscounter_recursion = 4, /*%< Recursion was used */
dns_statscounter_failure = 5, /*%< Some other failure */
dns_statscounter_duplicate = 6, /*%< Duplicate query */
dns_statscounter_dropped = 7 /*%< Duplicate query (dropped) */
};
#define DNS_STATS_NCOUNTERS 8
/*%<
* Flag(s) for dns_xxxstats_dump().
*/
#define DNS_STATSDUMP_VERBOSE 0x00000001 /*%< dump 0-value counters */
/*%<
* (Obsoleted)
*/
LIBDNS_EXTERNAL_DATA extern const char *dns_statscounter_names[];
/*%
* Attributes for statistics counters of RRset and Rdatatype types.
*
* _OTHERTYPE
* The rdata type is not explicitly supported and the corresponding counter
* is counted for other such types, too. When this attribute is set,
* the base type is of no use.
*
* _NXRRSET
* RRset type counters only. Indicates the RRset is non existent.
*
* _NXDOMAIN
* RRset type counters only. Indicates a non existent name. When this
* attribute is set, the base type is of no use.
*/
#define DNS_RDATASTATSTYPE_ATTR_OTHERTYPE 0x0001
#define DNS_RDATASTATSTYPE_ATTR_NXRRSET 0x0002
#define DNS_RDATASTATSTYPE_ATTR_NXDOMAIN 0x0004
/*%<
* Conversion macros among dns_rdatatype_t, attributes and dns_statscounter_t.
*/
#define DNS_RDATASTATSTYPE_BASE(type) ((dns_rdatatype_t)((type) & 0xFFFF))
#define DNS_RDATASTATSTYPE_ATTR(type) ((type) >> 16)
#define DNS_RDATASTATSTYPE_VALUE(b, a) (((a) << 16) | (b))
/*%<
* Types of dump callbacks.
*/
typedef void (*dns_generalstats_dumper_t)(dns_statscounter_t, isc_uint64_t,
void *);
typedef void (*dns_rdatatypestats_dumper_t)(dns_rdatastatstype_t, isc_uint64_t,
void *);
typedef void (*dns_opcodestats_dumper_t)(dns_opcode_t, isc_uint64_t, void *);
isc_result_t
dns_generalstats_create(isc_mem_t *mctx, dns_stats_t **statsp, int ncounters);
/*%<
* Create a statistics counter structure of general type. It counts a general
* set of counters indexed by an ID between 0 and ncounters -1.
*
* Requires:
*\li 'mctx' must be a valid memory context.
*
*\li 'statsp' != NULL && '*statsp' == NULL.
*
* Returns:
*\li ISC_R_SUCCESS -- all ok
*
*\li anything else -- failure
*/
isc_result_t
dns_rdatatypestats_create(isc_mem_t *mctx, dns_stats_t **statsp);
/*%<
* Create a statistics counter structure per rdatatype.
*
* Requires:
*\li 'mctx' must be a valid memory context.
*
*\li 'statsp' != NULL && '*statsp' == NULL.
*
* Returns:
*\li ISC_R_SUCCESS -- all ok
*
*\li anything else -- failure
*/
isc_result_t
dns_rdatasetstats_create(isc_mem_t *mctx, dns_stats_t **statsp);
/*%<
* Create a statistics counter structure per RRset.
*
* Requires:
*\li 'mctx' must be a valid memory context.
*
*\li 'statsp' != NULL && '*statsp' == NULL.
*
* Returns:
*\li ISC_R_SUCCESS -- all ok
*
*\li anything else -- failure
*/
isc_result_t
dns_opcodestats_create(isc_mem_t *mctx, dns_stats_t **statsp);
/*%<
* Create a statistics counter structure per opcode.
*
* Requires:
*\li 'mctx' must be a valid memory context.
*
*\li 'statsp' != NULL && '*statsp' == NULL.
*
* Returns:
*\li ISC_R_SUCCESS -- all ok
*
*\li anything else -- failure
*/
void
dns_stats_attach(dns_stats_t *stats, dns_stats_t **statsp);
/*%<
* Attach to a statistics set.
*
* Requires:
*\li 'stats' is a valid dns_stats_t.
*
*\li 'statsp' != NULL && '*statsp' == NULL
*/
void
dns_stats_detach(dns_stats_t **statsp);
/*%<
* Detaches from the statistics set.
*
* Requires:
*\li 'statsp' != NULL and '*statsp' is a valid dns_stats_t.
*/
void
dns_generalstats_increment(dns_stats_t *stats, dns_statscounter_t counter);
/*%<
* Increment the counter-th counter of stats.
*
* Requires:
*\li 'stats' is a valid dns_stats_t created by dns_generalstats_create().
*
*\li counter is less than the maximum available ID for the stats specified
* on creation.
*/
void
dns_rdatatypestats_increment(dns_stats_t *stats, dns_rdatatype_t type);
/*%<
* Increment the statistics counter for 'type'.
*
* Requires:
*\li 'stats' is a valid dns_stats_t created by dns_rdatatypestats_create().
*/
void
dns_rdatasetstats_increment(dns_stats_t *stats, dns_rdatastatstype_t rrsettype);
/*%<
* Increment the statistics counter for 'rrsettype'.
*
* Requires:
*\li 'stats' is a valid dns_stats_t created by dns_rdatasetstats_create().
*/
void
dns_rdatasetstats_decrement(dns_stats_t *stats, dns_rdatastatstype_t rrsettype);
/*%<
* Decrement the statistics counter for 'rrsettype'.
*
* Requires:
*\li 'stats' is a valid dns_stats_t created by dns_rdatasetstats_create().
*/
void
dns_opcodestats_increment(dns_stats_t *stats, dns_opcode_t code);
/*%<
* Increment the statistics counter for 'code'.
*
* Requires:
*\li 'stats' is a valid dns_stats_t created by dns_opcodestats_create().
*/
void
dns_generalstats_dump(dns_stats_t *stats, dns_generalstats_dumper_t dump_fn,
void *arg, unsigned int options);
/*%<
* Dump the current statistics counters in a specified way. For each counter
* in stats, dump_fn is called with its current value and the given argument
* arg. By default counters that have a value of 0 is skipped; if options has
* the DNS_STATSDUMP_VERBOSE flag, even such counters are dumped.
*
* Requires:
*\li 'stats' is a valid dns_stats_t created by dns_generalstats_create().
*/
void
dns_rdatatypestats_dump(dns_stats_t *stats, dns_rdatatypestats_dumper_t dump_fn,
void *arg, unsigned int options);
/*%<
* Dump the current statistics counters in a specified way. For each counter
* in stats, dump_fn is called with the corresponding type in the form of
* dns_rdatastatstype_t, the current counter value and the given argument
* arg. By default counters that have a value of 0 is skipped; if options has
* the DNS_STATSDUMP_VERBOSE flag, even such counters are dumped.
*
* Requires:
*\li 'stats' is a valid dns_stats_t created by dns_generalstats_create().
*/
void
dns_rdatasetstats_dump(dns_stats_t *stats, dns_rdatatypestats_dumper_t dump_fn,
void *arg, unsigned int options);
/*%<
* Dump the current statistics counters in a specified way. For each counter
* in stats, dump_fn is called with the corresponding type in the form of
* dns_rdatastatstype_t, the current counter value and the given argument
* arg. By default counters that have a value of 0 is skipped; if options has
* the DNS_STATSDUMP_VERBOSE flag, even such counters are dumped.
*
* Requires:
*\li 'stats' is a valid dns_stats_t created by dns_generalstats_create().
*/
void
dns_opcodestats_dump(dns_stats_t *stats, dns_opcodestats_dumper_t dump_fn,
void *arg, unsigned int options);
/*%<
* Dump the current statistics counters in a specified way. For each counter
* in stats, dump_fn is called with the corresponding opcode, the current
* counter value and the given argument arg. By default counters that have a
* value of 0 is skipped; if options has the DNS_STATSDUMP_VERBOSE flag, even
* such counters are dumped.
*
* Requires:
*\li 'stats' is a valid dns_stats_t created by dns_generalstats_create().
*/
isc_result_t
dns_stats_alloccounters(isc_mem_t *mctx, isc_uint64_t **ctrp);
/*%<
* Allocate an array of query statistics counters from the memory
* context 'mctx'.
*
* This function is obsoleted. Use dns_xxxstats_create() instead.
*/
void
dns_stats_freecounters(isc_mem_t *mctx, isc_uint64_t **ctrp);
/*%<
* Free an array of query statistics counters allocated from the memory
* context 'mctx'.
*
* This function is obsoleted. Use dns_stats_destroy() instead.
*/
ISC_LANG_ENDDECLS
#endif /* DNS_STATS_H */
|
