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-rw-r--r--vendor/github.com/prometheus/procfs/stat.go56
1 files changed, 56 insertions, 0 deletions
diff --git a/vendor/github.com/prometheus/procfs/stat.go b/vendor/github.com/prometheus/procfs/stat.go
new file mode 100644
index 000000000..1ca217e8c
--- /dev/null
+++ b/vendor/github.com/prometheus/procfs/stat.go
@@ -0,0 +1,56 @@
+package procfs
+
+import (
+ "bufio"
+ "fmt"
+ "os"
+ "strconv"
+ "strings"
+)
+
+// Stat represents kernel/system statistics.
+type Stat struct {
+ // Boot time in seconds since the Epoch.
+ BootTime int64
+}
+
+// NewStat returns kernel/system statistics read from /proc/stat.
+func NewStat() (Stat, error) {
+ fs, err := NewFS(DefaultMountPoint)
+ if err != nil {
+ return Stat{}, err
+ }
+
+ return fs.NewStat()
+}
+
+// NewStat returns an information about current kernel/system statistics.
+func (fs FS) NewStat() (Stat, error) {
+ f, err := os.Open(fs.Path("stat"))
+ if err != nil {
+ return Stat{}, err
+ }
+ defer f.Close()
+
+ s := bufio.NewScanner(f)
+ for s.Scan() {
+ line := s.Text()
+ if !strings.HasPrefix(line, "btime") {
+ continue
+ }
+ fields := strings.Fields(line)
+ if len(fields) != 2 {
+ return Stat{}, fmt.Errorf("couldn't parse %s line %s", f.Name(), line)
+ }
+ i, err := strconv.ParseInt(fields[1], 10, 32)
+ if err != nil {
+ return Stat{}, fmt.Errorf("couldn't parse %s: %s", fields[1], err)
+ }
+ return Stat{BootTime: i}, nil
+ }
+ if err := s.Err(); err != nil {
+ return Stat{}, fmt.Errorf("couldn't parse %s: %s", f.Name(), err)
+ }
+
+ return Stat{}, fmt.Errorf("couldn't parse %s, missing btime", f.Name())
+}