1 /**
2 * collectd - src/utils_latency_config.c
3 * Copyright (C) 2013-2016 Florian octo Forster
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 *
23 * Authors:
24 * Florian octo Forster <octo at collectd.org>
25 * Pavel Rochnyack <pavel2000 at ngs.ru>
26 */
28 #include "collectd.h"
29 #include "common.h"
30 #include "utils_latency_config.h"
32 int latency_config_add_percentile(const char *plugin, latency_config_t *cl,
33 oconfig_item_t *ci)
34 {
35 if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_NUMBER))
36 {
37 ERROR("%s plugin: \"%s\" requires exactly one numeric argument.", plugin,
38 ci->key);
39 return (-1);
40 }
42 double percent = ci->values[0].value.number;
43 double *tmp;
45 if ((percent <= 0.0) || (percent >= 100))
46 {
47 ERROR("%s plugin: The value for \"%s\" must be between 0 and 100, "
48 "exclusively.",
49 plugin, ci->key);
50 return (ERANGE);
51 }
53 tmp = realloc(cl->percentile,
54 sizeof(*cl->percentile) * (cl->percentile_num + 1));
55 if (tmp == NULL)
56 {
57 ERROR("%s plugin: realloc failed.", plugin);
58 return (ENOMEM);
59 }
60 cl->percentile = tmp;
61 cl->percentile[cl->percentile_num] = percent;
62 cl->percentile_num++;
64 return (0);
65 } /* int latency_config_add_percentile */
67 int latency_config_add_rate(const char *plugin, latency_config_t *cl,
68 oconfig_item_t *ci)
69 {
70 if ((ci->values_num != 2)
71 || (ci->values[0].type != OCONFIG_TYPE_NUMBER)
72 || (ci->values[1].type != OCONFIG_TYPE_NUMBER))
73 {
74 ERROR("%s plugin: \"%s\" requires exactly two numeric arguments.", plugin,
75 ci->key);
76 return (-1);
77 }
79 if (ci->values[1].value.number &&
80 ci->values[1].value.number <= ci->values[0].value.number)
81 {
82 ERROR("%s plugin: MIN must be less than MAX in \"%s\".", plugin, ci->key);
83 return (-1);
84 }
86 if (ci->values[0].value.number < 0.001)
87 {
88 ERROR("%s plugin: MIN must be greater or equal to 0.001 in \"%s\".", plugin,
89 ci->key);
90 return (-1);
91 }
93 cdtime_t lower = DOUBLE_TO_CDTIME_T(ci->values[0].value.number);
94 cdtime_t upper = DOUBLE_TO_CDTIME_T(ci->values[1].value.number);
95 cdtime_t *tmp;
97 tmp = realloc(cl->rates, sizeof(*cl->rates) * (cl->rates_num + 1) * 2);
98 if (tmp == NULL)
99 {
100 ERROR("%s plugin: realloc failed.", plugin);
101 return (ENOMEM);
102 }
103 cl->rates = tmp;
104 cl->rates[cl->rates_num * 2] = lower;
105 cl->rates[cl->rates_num * 2 + 1] = upper;
106 cl->rates_num++;
108 return (0);
109 } /* int latency_config_add_rate */
111 int latency_config_copy(latency_config_t *dst, const latency_config_t src)
112 {
113 *dst = (latency_config_t){
114 .rates = NULL,
115 .rates_num = src.rates_num,
116 .rates_type = NULL,
117 .percentile = NULL,
118 .percentile_num = src.percentile_num,
119 .percentile_type = NULL,
120 };
122 /* Copy percentiles configuration */
123 dst->percentile_num = src.percentile_num;
124 dst->percentile = calloc(src.percentile_num, sizeof(*dst->percentile));
125 if (dst->percentile == NULL)
126 return (-1);
128 memcpy(dst->percentile, src.percentile,
129 (sizeof(*dst->percentile) * (src.percentile_num)));
131 if (src.percentile_type != NULL)
132 {
133 dst->percentile_type = strdup(src.percentile_type);
134 if (dst->percentile_type == NULL)
135 {
136 latency_config_free(*dst);
137 return (-1);
138 }
139 }
141 /* Copy rates configuration */
142 dst->rates_num = src.rates_num;
143 dst->rates = calloc(src.rates_num * 2, sizeof(*dst->rates));
144 if (dst->rates == NULL)
145 {
146 latency_config_free(*dst);
147 return (-1);
148 }
150 memcpy(dst->rates, src.rates, (sizeof(*dst->rates) * (src.rates_num) * 2));
152 if (src.rates_type != NULL)
153 {
154 dst->rates_type = strdup(src.rates_type);
155 if (dst->rates_type == NULL)
156 {
157 latency_config_free(*dst);
158 return (-1);
159 }
160 }
162 return (0);
163 } /* int latency_config_copy */
165 void latency_config_free(latency_config_t lc) {
166 sfree(lc.rates);
167 sfree(lc.rates_type);
168 sfree(lc.percentile);
169 sfree(lc.percentile_type);
170 } /* void latency_config_free */