Stat returns the current status information of the process.
()
| 134 | |
| 135 | // Stat returns the current status information of the process. |
| 136 | func (p Proc) Stat() (ProcStat, error) { |
| 137 | data, err := parsers.ReadFileNoStat(p.path("stat")) |
| 138 | if err != nil { |
| 139 | return ProcStat{}, err |
| 140 | } |
| 141 | |
| 142 | var ( |
| 143 | ignoreInt64 int64 |
| 144 | ignoreUint64 uint64 |
| 145 | |
| 146 | s = ProcStat{PID: p.PID, proc: p.fs} |
| 147 | l = bytes.Index(data, []byte("(")) |
| 148 | r = bytes.LastIndex(data, []byte(")")) |
| 149 | ) |
| 150 | |
| 151 | if l < 0 || r < 0 { |
| 152 | return ProcStat{}, fmt.Errorf("%w: unexpected format, couldn't extract comm %q", ErrFileParse, data) |
| 153 | } |
| 154 | |
| 155 | s.Comm = string(data[l+1 : r]) |
| 156 | |
| 157 | // Check the following resources for the details about the particular stat |
| 158 | // fields and their data types: |
| 159 | // * https://man7.org/linux/man-pages/man5/proc.5.html |
| 160 | // * https://man7.org/linux/man-pages/man3/scanf.3.html |
| 161 | _, err = fmt.Fscan( |
| 162 | bytes.NewBuffer(data[r+2:]), |
| 163 | &s.State, |
| 164 | &s.PPID, |
| 165 | &s.PGRP, |
| 166 | &s.Session, |
| 167 | &s.TTY, |
| 168 | &s.TPGID, |
| 169 | &s.Flags, |
| 170 | &s.MinFlt, |
| 171 | &s.CMinFlt, |
| 172 | &s.MajFlt, |
| 173 | &s.CMajFlt, |
| 174 | &s.UTime, |
| 175 | &s.STime, |
| 176 | &s.CUTime, |
| 177 | &s.CSTime, |
| 178 | &s.Priority, |
| 179 | &s.Nice, |
| 180 | &s.NumThreads, |
| 181 | &ignoreInt64, |
| 182 | &s.Starttime, |
| 183 | &s.VSize, |
| 184 | &s.RSS, |
| 185 | &s.RSSLimit, |
| 186 | &s.StartCode, |
| 187 | &s.EndCode, |
| 188 | &s.StartStack, |
| 189 | &ignoreUint64, |
| 190 | &ignoreUint64, |
| 191 | &ignoreUint64, |
| 192 | &ignoreUint64, |
| 193 | &ignoreUint64, |
no test coverage detected