diff options
Diffstat (limited to 'vendor/github.com/prometheus/procfs/proc.go')
| -rw-r--r-- | vendor/github.com/prometheus/procfs/proc.go | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/vendor/github.com/prometheus/procfs/proc.go b/vendor/github.com/prometheus/procfs/proc.go index 48f39dafd..d1f71caa5 100644 --- a/vendor/github.com/prometheus/procfs/proc.go +++ b/vendor/github.com/prometheus/procfs/proc.go @@ -15,6 +15,7 @@ package procfs import ( "bytes" + "errors" "fmt" "io" "os" @@ -35,6 +36,12 @@ type Proc struct { // Procs represents a list of Proc structs. type Procs []Proc +var ( + ErrFileParse = errors.New("Error Parsing File") + ErrFileRead = errors.New("Error Reading File") + ErrMountPoint = errors.New("Error Accessing Mount point") +) + func (p Procs) Len() int { return len(p) } func (p Procs) Swap(i, j int) { p[i], p[j] = p[j], p[i] } func (p Procs) Less(i, j int) bool { return p[i].PID < p[j].PID } @@ -42,7 +49,7 @@ func (p Procs) Less(i, j int) bool { return p[i].PID < p[j].PID } // Self returns a process for the current process read via /proc/self. func Self() (Proc, error) { fs, err := NewFS(DefaultMountPoint) - if err != nil { + if err != nil || errors.Unwrap(err) == ErrMountPoint { return Proc{}, err } return fs.Self() @@ -104,7 +111,7 @@ func (fs FS) AllProcs() (Procs, error) { names, err := d.Readdirnames(-1) if err != nil { - return Procs{}, fmt.Errorf("could not read %q: %w", d.Name(), err) + return Procs{}, fmt.Errorf("%s: Cannot read file: %v: %w", ErrFileRead, names, err) } p := Procs{} @@ -205,7 +212,7 @@ func (p Proc) FileDescriptors() ([]uintptr, error) { for i, n := range names { fd, err := strconv.ParseInt(n, 10, 32) if err != nil { - return nil, fmt.Errorf("could not parse fd %q: %w", n, err) + return nil, fmt.Errorf("%s: Cannot parse line: %v: %w", ErrFileParse, i, err) } fds[i] = uintptr(fd) } @@ -237,7 +244,7 @@ func (p Proc) FileDescriptorTargets() ([]string, error) { // a process. func (p Proc) FileDescriptorsLen() (int, error) { // Use fast path if available (Linux v6.2): https://github.com/torvalds/linux/commit/f1f1f2569901 - if p.fs.real { + if p.fs.isReal { stat, err := os.Stat(p.path("fd")) if err != nil { return 0, err @@ -290,7 +297,7 @@ func (p Proc) fileDescriptors() ([]string, error) { names, err := d.Readdirnames(-1) if err != nil { - return nil, fmt.Errorf("could not read %q: %w", d.Name(), err) + return nil, fmt.Errorf("%s: Cannot read file: %v: %w", ErrFileRead, names, err) } return names, nil |