/usr/share/systemtap/runtime/map-stat.c is in systemtap-common 1.7-1+deb7u1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 | /* -*- linux-c -*-
* map functions to handle statistics
* Copyright (C) 2005 Red Hat Inc.
*
* This file is part of systemtap, and is free software. You can
* redistribute it and/or modify it under the terms of the GNU General
* Public License (GPL); either version 2, or (at your option) any
* later version.
*/
/** @file map-stat.c
* @brief Map functions to handle statistics.
*/
#include "stat-common.c"
static void _stp_map_print_histogram (MAP map, stat *sd)
{
_stp_stat_print_histogram (&map->hist, sd);
}
static MAP _stp_map_new_hstat_log (unsigned max_entries, int key_size)
{
/* add size for buckets */
int size = HIST_LOG_BUCKETS * sizeof(int64_t) + sizeof(stat);
MAP m = _stp_map_new (max_entries, STAT, key_size, size);
if (m) {
m->hist.type = HIST_LOG;
m->hist.buckets = HIST_LOG_BUCKETS;
}
return m;
}
static MAP _stp_map_new_hstat_linear (unsigned max_entries, int ksize, int start, int stop, int interval)
{
MAP m;
int size;
int buckets = _stp_stat_calc_buckets(stop, start, interval);
if (!buckets)
return NULL;
/* add size for buckets */
size = buckets * sizeof(int64_t) + sizeof(stat);
m = _stp_map_new (max_entries, STAT, ksize, size);
if (m) {
m->hist.type = HIST_LINEAR;
m->hist.start = start;
m->hist.stop = stop;
m->hist.interval = interval;
m->hist.buckets = buckets;
}
return m;
}
static PMAP _stp_pmap_new_hstat_linear (unsigned max_entries, int ksize, int start, int stop, int interval)
{
PMAP pmap;
int size;
int buckets = _stp_stat_calc_buckets(stop, start, interval);
if (!buckets)
return NULL;
/* add size for buckets */
size = buckets * sizeof(int64_t) + sizeof(stat);
pmap = _stp_pmap_new (max_entries, STAT, ksize, size);
if (pmap) {
int i;
MAP m;
stp_for_each_cpu(i) {
m = (MAP)per_cpu_ptr (pmap->map, i);
m->hist.type = HIST_LINEAR;
m->hist.start = start;
m->hist.stop = stop;
m->hist.interval = interval;
m->hist.buckets = buckets;
}
/* now set agg map params */
m = &pmap->agg;
m->hist.type = HIST_LINEAR;
m->hist.start = start;
m->hist.stop = stop;
m->hist.interval = interval;
m->hist.buckets = buckets;
}
return pmap;
}
static PMAP _stp_pmap_new_hstat_log (unsigned max_entries, int key_size)
{
/* add size for buckets */
int size = HIST_LOG_BUCKETS * sizeof(int64_t) + sizeof(stat);
PMAP pmap = _stp_pmap_new (max_entries, STAT, key_size, size);
if (pmap) {
int i;
MAP m;
stp_for_each_cpu(i) {
m = (MAP)per_cpu_ptr (pmap->map, i);
m->hist.type = HIST_LOG;
m->hist.buckets = HIST_LOG_BUCKETS;
}
/* now set agg map params */
m = &pmap->agg;
m->hist.type = HIST_LOG;
m->hist.buckets = HIST_LOG_BUCKETS;
}
return pmap;
}
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