Merge "bootstat: Add a few more bootreasons and rebase the index against index 1."

  return std::string(&temp[0], len);

}

constexpr int32_t kUnknownBootReason = 1;

// A mapping from boot reason string, as read from the ro.boot.bootreason

// system property, to a unique integer ID. Viewers of log data dashboards for

// the boot_reason metric may refer to this mapping to discern the histogram

// values.

const std::map<std::string, int> kBootReasonMap = {

  {"normal", 0},

  {"recovery", 1},

  {"reboot", 2},

  {"PowerKey", 3},

  {"hard_reset", 4},

  {"kernel_panic", 5},

  {"rpm_err", 6},

  {"hw_reset", 7},

  {"tz_err", 8},

  {"adsp_err", 9},

  {"modem_err", 10},

  {"mba_err", 11},

  {"Watchdog", 12},

  {"Panic", 13},

const std::map<std::string, int32_t> kBootReasonMap = {

  {"unknown", kUnknownBootReason},

  {"normal", 2},

  {"recovery", 3},

  {"reboot", 4},

  {"PowerKey", 5},

  {"hard_reset", 6},

  {"kernel_panic", 7},

  {"rpm_err", 8},

  {"hw_reset", 9},

  {"tz_err", 10},

  {"adsp_err", 11},

  {"modem_err", 12},

  {"mba_err", 13},

  {"Watchdog", 14},

  {"Panic", 15},

  {"power_key", 16},

  {"power_on", 17},

  {"Reboot", 18},

  {"rtc", 19},

  {"edl", 20},

};

// Converts a string value representing the reason the system booted to an

// integer representation. This is necessary for logging the boot_reason metric

// via Tron, which does not accept non-integer buckets in histograms.

int32_t BootReasonStrToEnum(const std::string& boot_reason) {

  static const int32_t kUnknownBootReason = -1;

  auto mapping = kBootReasonMap.find(boot_reason);

  if (mapping != kBootReasonMap.end()) {

    return mapping->second;