47     std::ifstream input(SYSTIME_PATH, std::ios::in);  in GetSystime()  local
48 …CHECK_TRUE(!input.fail(), systime, "%s:open %s failed, errno = %d", __func__, SYSTIME_PATH, errno);  in GetSystime()
50         if (!input.good()) {  in GetSystime()
54         getline(input, line);  in GetSystime()
65     input.close();  in GetSystime()
83     std::ifstream input(CPU_PATH, std::ios::in);  in ParseCpuStats()  local
84     CHECK_TRUE(!input.fail(), false, "%s: open %s failed, errno = %d", __func__, CPU_PATH, errno);  in ParseCpuStats()
86         if (!input.good()) {  in ParseCpuStats()
90         getline(input, line);  in ParseCpuStats()
97     } while (!input.eof());  in ParseCpuStats()
98     input.close();  in ParseCpuStats()
141     std::ifstream input(DISKSTATS_PATH, std::ios::in);  in ParseIoStats()  local
142     CHECK_TRUE(!input.fail(), false, "%s:%d open failed, errno = %d", __func__, __LINE__, errno);  in ParseIoStats()
144         if (!input.good()) {  in ParseIoStats()
148         getline(input, line);  in ParseIoStats()
151     } while (!input.eof());  in ParseIoStats()
152     input.close();  in ParseIoStats()