4 Copyright (C) Ronnie Sahlberg 2010
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, see <http://www.gnu.org/licenses/>.
22 #include "../include/ctdb_private.h"
24 static void ctdb_statistics_update(struct tevent_context *ev,
25 struct tevent_timer *te,
26 struct timeval t, void *p)
28 struct ctdb_context *ctdb = talloc_get_type(p, struct ctdb_context);
30 memmove(&ctdb->statistics_history[1], &ctdb->statistics_history[0], (MAX_STAT_HISTORY-1)*sizeof(struct ctdb_statistics));
31 memcpy(&ctdb->statistics_history[0], &ctdb->statistics_current, sizeof(struct ctdb_statistics));
32 ctdb->statistics_history[0].statistics_current_time = timeval_current();
35 bzero(&ctdb->statistics_current, sizeof(struct ctdb_statistics));
36 ctdb->statistics_current.statistics_start_time = timeval_current();
38 tevent_add_timer(ctdb->ev, ctdb,
39 timeval_current_ofs(ctdb->tunable.stat_history_interval, 0),
40 ctdb_statistics_update, ctdb);
43 int ctdb_statistics_init(struct ctdb_context *ctdb)
45 bzero(&ctdb->statistics, sizeof(struct ctdb_statistics));
46 ctdb->statistics.statistics_start_time = timeval_current();
48 bzero(&ctdb->statistics_current, sizeof(struct ctdb_statistics));
49 ctdb->statistics_current.statistics_start_time = timeval_current();
51 bzero(ctdb->statistics_history, sizeof(ctdb->statistics_history));
53 tevent_add_timer(ctdb->ev, ctdb,
54 timeval_current_ofs(ctdb->tunable.stat_history_interval, 0),
55 ctdb_statistics_update, ctdb);
60 int32_t ctdb_control_get_stat_history(struct ctdb_context *ctdb,
61 struct ctdb_req_control *c,
65 struct ctdb_statistics_wire *s;
67 len = offsetof(struct ctdb_statistics_wire, stats) + MAX_STAT_HISTORY*sizeof(struct ctdb_statistics);
69 s = talloc_size(outdata, len);
71 DEBUG(DEBUG_ERR,(__location__ " Failed to allocate statistics history structure\n"));
75 s->num = MAX_STAT_HISTORY;
76 memcpy(&s->stats[0], &ctdb->statistics_history[0], sizeof(ctdb->statistics_history));
79 outdata->dptr = (uint8_t *)s;