contrib/bind-9.2.4rc7/lib/dns/include/dns/stats.h

   1 /*
   2  * Copyright (C) 2004  Internet Systems Consortium, Inc. ("ISC")
   3  * Copyright (C) 2000, 2001  Internet Software Consortium.
   4  *
   5  * Permission to use, copy, modify, and distribute this software for any
   6  * purpose with or without fee is hereby granted, provided that the above
   7  * copyright notice and this permission notice appear in all copies.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
  10  * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
  11  * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
  12  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
  13  * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
  14  * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  15  * PERFORMANCE OF THIS SOFTWARE.
  16  */
  17
  18 /* $Id: stats.h,v 1.4.2.1 2004/03/09 06:11:22 marka Exp $ */
  19
  20 #ifndef DNS_STATS_H
  21 #define DNS_STATS_H 1
  22
  23 #include <dns/types.h>
  24
  25 /*
  26  * Query statistics counter types.
  27  */
  28 typedef enum {
  29         dns_statscounter_success = 0,    /* Successful lookup */
  30         dns_statscounter_referral = 1,   /* Referral result */
  31         dns_statscounter_nxrrset = 2,    /* NXRRSET result */
  32         dns_statscounter_nxdomain = 3,   /* NXDOMAIN result */
  33         dns_statscounter_recursion = 4,  /* Recursion was used */
  34         dns_statscounter_failure = 5     /* Some other failure */
  35 } dns_statscounter_t;
  36
  37 #define DNS_STATS_NCOUNTERS 6
  38
  39 LIBDNS_EXTERNAL_DATA extern const char *dns_statscounter_names[];
  40
  41 isc_result_t
  42 dns_stats_alloccounters(isc_mem_t *mctx, isc_uint64_t **ctrp);
  43 /*
  44  * Allocate an array of query statistics counters from the memory
  45  * context 'mctx'.
  46  */
  47
  48 void
  49 dns_stats_freecounters(isc_mem_t *mctx, isc_uint64_t **ctrp);
  50 /*
  51  * Free an array of query statistics counters allocated from the memory
  52  * context 'mctx'.
  53  */
  54
  55 ISC_LANG_ENDDECLS
  56
  57 #endif /* DNS_STATS_H */