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// SPDX-License-Identifier: GPL-3.0-or-later
#include "plugin_timex.h"
#include "sys/timex.h"
#define PLUGIN_TIMEX_NAME "timex.plugin"
#define CONFIG_SECTION_TIMEX "plugin:timex"
static void timex_main_cleanup(void *ptr)
{
struct netdata_static_thread *static_thread = (struct netdata_static_thread *)ptr;
static_thread->enabled = NETDATA_MAIN_THREAD_EXITING;
info("cleaning up...");
static_thread->enabled = NETDATA_MAIN_THREAD_EXITED;
}
void *timex_main(void *ptr)
{
netdata_thread_cleanup_push(timex_main_cleanup, ptr);
int vdo_cpu_netdata = config_get_boolean(CONFIG_SECTION_TIMEX, "timex plugin resource charts", CONFIG_BOOLEAN_YES);
int update_every = (int)config_get_number(CONFIG_SECTION_TIMEX, "update every", 10);
if (update_every < localhost->rrd_update_every)
update_every = localhost->rrd_update_every;
int do_sync = config_get_boolean(CONFIG_SECTION_TIMEX, "clock synchronization state", CONFIG_BOOLEAN_YES);
int do_offset = config_get_boolean(CONFIG_SECTION_TIMEX, "time offset", CONFIG_BOOLEAN_YES);
if (unlikely(do_sync == CONFIG_BOOLEAN_NO && do_offset == CONFIG_BOOLEAN_NO)) {
info("No charts to show");
goto exit;
}
usec_t step = update_every * USEC_PER_SEC;
heartbeat_t hb;
heartbeat_init(&hb);
while (!netdata_exit) {
usec_t duration = heartbeat_monotonic_dt_to_now_usec(&hb);
heartbeat_next(&hb, step);
struct timex timex_buf = {};
int sync_state = 0;
sync_state = adjtimex(&timex_buf);
collected_number divisor = USEC_PER_MS;
if (timex_buf.status & STA_NANO)
divisor = NSEC_PER_MSEC;
// ----------------------------------------------------------------
if (do_sync) {
static RRDSET *st_sync_state = NULL;
static RRDDIM *rd_sync_state;
if (unlikely(!st_sync_state)) {
st_sync_state = rrdset_create_localhost(
"system",
"clock_sync_state",
NULL,
"clock synchronization",
NULL,
"System Clock Synchronization State",
"state",
PLUGIN_TIMEX_NAME,
NULL,
NETDATA_CHART_PRIO_CLOCK_SYNC_STATE,
update_every,
RRDSET_TYPE_LINE);
rd_sync_state = rrddim_add(st_sync_state, "state", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
} else {
rrdset_next(st_sync_state);
}
rrddim_set_by_pointer(st_sync_state, rd_sync_state, sync_state != TIME_ERROR ? 1 : 0);
rrdset_done(st_sync_state);
}
if (do_sync) {
static RRDSET *st_offset = NULL;
static RRDDIM *rd_offset;
if (unlikely(!st_offset)) {
st_offset = rrdset_create_localhost(
"system",
"clock_sync_offset",
NULL,
"clock synchronization",
NULL,
"Computed Time Offset Between Local System and Reference Clock",
"milliseconds",
PLUGIN_TIMEX_NAME,
NULL,
NETDATA_CHART_PRIO_CLOCK_SYNC_OFFSET,
update_every,
RRDSET_TYPE_LINE);
rd_offset = rrddim_add(st_offset, "offset", NULL, 1, divisor, RRD_ALGORITHM_ABSOLUTE);
} else {
rrdset_next(st_offset);
}
rrddim_set_by_pointer(st_offset, rd_offset, timex_buf.offset);
rrdset_done(st_offset);
}
if (vdo_cpu_netdata) {
static RRDSET *stcpu_thread = NULL, *st_duration = NULL;
static RRDDIM *rd_user = NULL, *rd_system = NULL, *rd_duration = NULL;
// ----------------------------------------------------------------
struct rusage thread;
getrusage(RUSAGE_THREAD, &thread);
if (unlikely(!stcpu_thread)) {
stcpu_thread = rrdset_create_localhost(
"netdata",
"plugin_timex",
NULL,
"timex",
NULL,
"Netdata Timex Plugin CPU usage",
"milliseconds/s",
PLUGIN_TIMEX_NAME,
NULL,
NETDATA_CHART_PRIO_NETDATA_TIMEX,
update_every,
RRDSET_TYPE_STACKED);
rd_user = rrddim_add(stcpu_thread, "user", NULL, 1, USEC_PER_MS, RRD_ALGORITHM_INCREMENTAL);
rd_system = rrddim_add(stcpu_thread, "system", NULL, 1, USEC_PER_MS, RRD_ALGORITHM_INCREMENTAL);
} else {
rrdset_next(stcpu_thread);
}
rrddim_set_by_pointer(stcpu_thread, rd_user, thread.ru_utime.tv_sec * USEC_PER_SEC + thread.ru_utime.tv_usec);
rrddim_set_by_pointer(
stcpu_thread, rd_system, thread.ru_stime.tv_sec * USEC_PER_SEC + thread.ru_stime.tv_usec);
rrdset_done(stcpu_thread);
// ----------------------------------------------------------------
if (unlikely(!st_duration)) {
st_duration = rrdset_create_localhost(
"netdata",
"plugin_timex_dt",
NULL,
"timex",
NULL,
"Netdata Timex Plugin Duration",
"milliseconds/run",
PLUGIN_TIMEX_NAME,
NULL,
NETDATA_CHART_PRIO_NETDATA_TIMEX + 1,
update_every,
RRDSET_TYPE_AREA);
rd_duration = rrddim_add(st_duration, "duration", NULL, 1, USEC_PER_MS, RRD_ALGORITHM_ABSOLUTE);
} else {
rrdset_next(st_duration);
}
rrddim_set_by_pointer(st_duration, rd_duration, duration);
rrdset_done(st_duration);
}
}
exit:
netdata_thread_cleanup_pop(1);
return NULL;
}
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