HarmonyOS 如何在native侧获取process.uptime？

Question

如何在native侧获取process.uptime？https://developer.huawei.com/consumer/cn/doc/harmonyos-references-V5/js-apis-process-V5\#processuptime

Answer 1

native获取参考示例：

struct sysinfo information = {0};
time_t systimer = 0;
if (sysinfo(&information)) {
  HILOG_ERROR("Failed to get sysinfo");
  return SYS_INFO_FAILED;
}
systimer = information.uptime;
return static_cast<double>(systimer)