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Commit 16e84cc1 authored by James Hawkins's avatar James Hawkins
Browse files

bootstat: Calculate and log the time_since_last_boot metric. 

Bug: 28163811
Change-Id: I2e1350531f6a0fc891c270cfdfca6c8ad63f8040
(cherry picked from commit 2d8b3e66)
parent c1167dd4

bootstat/bootstat.cpp

+12 −0
Original line number Diff line number Diff line
@@ -169,7 +169,19 @@ 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