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Merge "bootstat: Calculate and log the time_since_last_boot metric."

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James Hawkins 2016-04-15 16:46:51 +00:00 • committed by Gerrit Code Review
commit 1607ea64cb
1 changed files with 12 additions and 0 deletions
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12
bootstat/bootstat.cpp
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@ -205,7 +205,19 @@ std::string CalculateBootCompletePrefix() {
void RecordBootComplete() {
BootEventRecordStore boot_event_store;
BootEventRecordStore::BootEventRecord record;
time_t uptime = bootstat::ParseUptime();
time_t current_time_utc = time(nullptr);
if (boot_event_store.GetBootEvent("last_boot_time_utc", &record)) {
time_t last_boot_time_utc = record.second;
time_t time_since_last_boot = difftime(current_time_utc,
last_boot_time_utc);
boot_event_store.AddBootEventWithValue("time_since_last_boot",
time_since_last_boot);
}
boot_event_store.AddBootEventWithValue("last_boot_time_utc", current_time_utc);
// The boot_complete metric has two variants: boot_complete and
// ota_boot_complete. The latter signifies that the device is booting after