2 * collectd - src/match_timediff.c
3 * Copyright (C) 2008,2009 Florian Forster
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21 * DEALINGS IN THE SOFTWARE.
24 * Florian Forster <octo at collectd.org>
30 #include "filter_chain.h"
39 typedef struct mt_match_s mt_match_t;
46 * internal helper functions
48 static int mt_create(const oconfig_item_t *ci, void **user_data) /* {{{ */
53 m = calloc(1, sizeof(*m));
55 ERROR("mt_create: calloc failed.");
63 for (int i = 0; i < ci->children_num; i++) {
64 oconfig_item_t *child = ci->children + i;
66 if (strcasecmp("Future", child->key) == 0)
67 status = cf_util_get_cdtime(child, &m->future);
68 else if (strcasecmp("Past", child->key) == 0)
69 status = cf_util_get_cdtime(child, &m->past);
71 ERROR("timediff match: The `%s' configuration option is not "
72 "understood and will be ignored.",
81 /* Additional sanity-checking */
83 if ((m->future == 0) && (m->past == 0)) {
84 ERROR("timediff match: Either `Future' or `Past' must be configured. "
85 "This match will be ignored.");
99 } /* }}} int mt_create */
101 static int mt_destroy(void **user_data) /* {{{ */
103 if (user_data != NULL) {
108 } /* }}} int mt_destroy */
110 static int mt_match(const data_set_t __attribute__((unused)) * ds, /* {{{ */
111 const value_list_t *vl,
112 notification_meta_t __attribute__((unused)) * *meta,
117 if ((user_data == NULL) || (*user_data == NULL))
123 if (m->future != 0) {
124 if (vl->time >= (now + m->future))
125 return (FC_MATCH_MATCHES);
129 if (vl->time <= (now - m->past))
130 return (FC_MATCH_MATCHES);
133 return (FC_MATCH_NO_MATCH);
134 } /* }}} int mt_match */
136 void module_register(void) {
137 match_proc_t mproc = {0};
139 mproc.create = mt_create;
140 mproc.destroy = mt_destroy;
141 mproc.match = mt_match;
142 fc_register_match("timediff", mproc);
143 } /* module_register */