48     std::ifstream input(SYSTIME_PATH, std::ios::in);  in GetSystime()  local
49 …CHECK_TRUE(!input.fail(), systime, "%s:open %s failed, errno = %d", __func__, SYSTIME_PATH, errno);  in GetSystime()
51         if (!input.good()) {  in GetSystime()
55         getline(input, line);  in GetSystime()
66     input.close();  in GetSystime()
84     std::ifstream input(CPU_PATH, std::ios::in);  in ParseCpuStats()  local
85     CHECK_TRUE(!input.fail(), false, "%s: open %s failed, errno = %d", __func__, CPU_PATH, errno);  in ParseCpuStats()
87         if (!input.good()) {  in ParseCpuStats()
91         getline(input, line);  in ParseCpuStats()
98     } while (!input.eof());  in ParseCpuStats()
99     input.close();  in ParseCpuStats()
142     std::ifstream input(DISKSTATS_PATH, std::ios::in);  in ParseIoStats()  local
143     CHECK_TRUE(!input.fail(), false, "%s:%d open failed, errno = %d", __func__, __LINE__, errno);  in ParseIoStats()
145         if (!input.good()) {  in ParseIoStats()
149         getline(input, line);  in ParseIoStats()
152     } while (!input.eof());  in ParseIoStats()
153     input.close();  in ParseIoStats()