arlad/stats.h

   1 /*
   2  * Copyright (c) 2001 - 2002 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #ifndef ARLA_STATS_H
  35 #define ARLA_STATS_H 1
  36
  37
  38 /* Struct with collected statistics */
  39 struct collect_stat{
  40     int64_t starttime;
  41 };
  42
  43 void
  44 collectstats_init (void);
  45
  46 void
  47 collectstats_start (struct collect_stat *p);
  48
  49 void
  50 collectstats_stop (struct collect_stat *p,
  51                    FCacheEntry *entry,
  52                    ConnCacheEntry *conn,
  53                    long partition,
  54                    int measure_type, uint64_t measure_items);
  55
  56 int
  57 collectstats_hostpart(uint32_t *host, uint32_t *part, int *n);
  58
  59 int
  60 collectstats_getentry(uint32_t host, uint32_t part, uint32_t type,
  61                       uint32_t items_slot, uint32_t *count,
  62                       int64_t *items_total, int64_t *total_time);
  63
  64 void
  65 stats_set_prefetch(uint64_t sz);
  66
  67 uint64_t
  68 stats_prefetch(ConnCacheEntry *conn, uint32_t part);
  69
  70 uint64_t
  71 stats_fetch_round(ConnCacheEntry *conn, uint32_t part, uint64_t size);
  72
  73 #endif /* ARLA_STATS_H */