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// SPDX-License-Identifier: GPL-3.0-or-later
#include "daemon/common.h"
#include "libnetdata/os.h"
#define PLUGIN_TIMEX_NAME "timex.plugin"
#define CONFIG_SECTION_TIMEX "plugin:timex"
struct status_codes {
char *name;
int code;
RRDDIM *rd;
} sta_codes[] = {
// {"pll", STA_PLL, NULL},
// {"ppsfreq", STA_PPSFREQ, NULL},
// {"ppstime", STA_PPSTIME, NULL},
// {"fll", STA_FLL, NULL},
// {"ins", STA_INS, NULL},
// {"del", STA_DEL, NULL},
{"unsync", STA_UNSYNC, NULL},
// {"freqhold", STA_FREQHOLD, NULL},
// {"ppssignal", STA_PPSSIGNAL, NULL},
// {"ppsjitter", STA_PPSJITTER, NULL},
// {"ppswander", STA_PPSWANDER, NULL},
// {"ppserror", STA_PPSERROR, NULL},
{"clockerr", STA_CLOCKERR, NULL},
// {"nano", STA_NANO, NULL},
// {"clk", STA_CLK, NULL},
{NULL, 0, NULL},
};
static void timex_main_cleanup(void *ptr)
{
worker_unregister();
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)
{
worker_register("TIMEX");
worker_register_job_name(0, "clock check");
netdata_thread_cleanup_push(timex_main_cleanup, ptr);
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) {
worker_is_idle();
heartbeat_next(&hb, step);
worker_is_busy(0);
struct timex timex_buf = {};
int sync_state = 0;
static int prev_sync_state = 0;
sync_state = ADJUST_TIMEX(&timex_buf);
int non_seq_failure = (sync_state == -1 && prev_sync_state != -1);
prev_sync_state = sync_state;
if (non_seq_failure) {
error("Cannot get clock synchronization state");
continue;
}
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);
}
rrddim_set_by_pointer(st_sync_state, rd_sync_state, sync_state != TIME_ERROR ? 1 : 0);
rrdset_done(st_sync_state);
static RRDSET *st_clock_status = NULL;
if (unlikely(!st_clock_status)) {
st_clock_status = rrdset_create_localhost(
"system",
"clock_status",
NULL,
"clock synchronization",
NULL,
"System Clock Status",
"status",
PLUGIN_TIMEX_NAME,
NULL,
NETDATA_CHART_PRIO_CLOCK_STATUS,
update_every,
RRDSET_TYPE_LINE);
for (int i = 0; sta_codes[i].name != NULL; i++) {
sta_codes[i].rd =
rrddim_add(st_clock_status, sta_codes[i].name, NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
}
}
for (int i = 0; sta_codes[i].name != NULL; i++)
rrddim_set_by_pointer(st_clock_status, sta_codes[i].rd, timex_buf.status & sta_codes[i].code ? 1 : 0);
rrdset_done(st_clock_status);
}
if (do_offset) {
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);
}
rrddim_set_by_pointer(st_offset, rd_offset, timex_buf.offset);
rrdset_done(st_offset);
}
}
exit:
netdata_thread_cleanup_pop(1);
return NULL;
}
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