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samba-mirror/ctdb/server/ctdb_statistics.c
Ronnie Sahlberg 714901e103 initialize the statistics to the current time, not start of epoch
this makes "ctdb statistics" show correct "start of starts collection"

(This used to be ctdb commit 7303058616fdb1d7f58cce2349c034e9f611275e)
2010-11-15 16:44:21 +11:00

80 lines
2.7 KiB
C

/*
ctdb statistics code
Copyright (C) Ronnie Sahlberg 2010
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include <string.h>
#include "lib/tevent/tevent.h"
#include "../include/ctdb_private.h"
static void ctdb_statistics_update(struct event_context *ev, struct timed_event *te,
struct timeval t, void *p)
{
struct ctdb_context *ctdb = talloc_get_type(p, struct ctdb_context);
memmove(&ctdb->statistics_history[1], &ctdb->statistics_history[0], (MAX_STAT_HISTORY-1)*sizeof(struct ctdb_statistics));
memcpy(&ctdb->statistics_history[0], &ctdb->statistics_current, sizeof(struct ctdb_statistics));
ctdb->statistics_history[0].statistics_current_time = timeval_current();
bzero(&ctdb->statistics_current, sizeof(struct ctdb_statistics));
ctdb->statistics_current.statistics_start_time = timeval_current();
event_add_timed(ctdb->ev, ctdb, timeval_current_ofs(ctdb->tunable.stat_history_interval, 0), ctdb_statistics_update, ctdb);
}
int ctdb_statistics_init(struct ctdb_context *ctdb)
{
bzero(&ctdb->statistics, sizeof(struct ctdb_statistics));
ctdb->statistics.statistics_start_time = timeval_current();
bzero(&ctdb->statistics_current, sizeof(struct ctdb_statistics));
ctdb->statistics_current.statistics_start_time = timeval_current();
bzero(ctdb->statistics_history, sizeof(ctdb->statistics_history));
event_add_timed(ctdb->ev, ctdb, timeval_current_ofs(ctdb->tunable.stat_history_interval, 0), ctdb_statistics_update, ctdb);
return 0;
}
int32_t ctdb_control_get_stat_history(struct ctdb_context *ctdb,
struct ctdb_req_control *c,
TDB_DATA *outdata)
{
int len;
struct ctdb_statistics_wire *stat;
len = offsetof(struct ctdb_statistics_wire, stats) + MAX_STAT_HISTORY*sizeof(struct ctdb_statistics);
stat = talloc_size(outdata, len);
if (stat == NULL) {
DEBUG(DEBUG_ERR,(__location__ " Failed to allocate statistics history structure\n"));
return -1;
}
stat->num = MAX_STAT_HISTORY;
memcpy(&stat->stats[0], &ctdb->statistics_history[0], sizeof(ctdb->statistics_history));
outdata->dsize = len;
outdata->dptr = (uint8_t *)stat;
return 0;
}