decoder

Documentation

Index

• Variables
• type CGroup
  • func (c *CGroup) Decode(in []byte, _ config.Decoder) ([]byte, error)
• type Decoder
• type Dname
  • func (d *Dname) Decode(in []byte, conf config.Decoder) ([]byte, error)
• type InetIP
  • func (i *InetIP) Decode(in []byte, conf config.Decoder) ([]byte, error)
• type KSym
  • func (k *KSym) Decode(in []byte, conf config.Decoder) ([]byte, error)
• type MajorMinor
  • func (m *MajorMinor) Decode(in []byte, conf config.Decoder) ([]byte, error)
• type Regexp
  • func (r *Regexp) Decode(in []byte, conf config.Decoder) ([]byte, error)
• type Set
  • func NewSet() *Set
  • func (s *Set) Decode(in []byte, label config.Label) ([]byte, error)
  • func (s *Set) DecodeLabels(in []byte, labels []config.Label) ([]string, error)
• type StaticMap
  • func (s *StaticMap) Decode(in []byte, conf config.Decoder) ([]byte, error)
• type String
  • func (s *String) Decode(in []byte, conf config.Decoder) ([]byte, error)
• type UInt
  • func (u *UInt) Decode(in []byte, conf config.Decoder) ([]byte, error)

Variables

var ErrSkipLabelSet = errors.New("this label set should be skipped")

ErrSkipLabelSet instructs exporter to skip label set

Types

type CGroup

type CGroup struct {
	// contains filtered or unexported fields
}

CGroup is a decoder that transforms cgroup id to path in cgroupfs

func (*CGroup) Decode

func (c *CGroup) Decode(in []byte, _ config.Decoder) ([]byte, error)

Decode transforms cgroup id to path in cgroupfs

type Decoder

type Decoder interface {
	Decode([]byte, config.Decoder) ([]byte, error)
}

Decoder transforms byte field value into a byte value representing string to either use as an input for another Decoder or to use as the final label value for Prometheus metrics

type Dname

type Dname struct{}

Dname is a decoder that decodes DNS qname wire format

func (*Dname) Decode

func (d *Dname) Decode(in []byte, conf config.Decoder) ([]byte, error)

Decode transforms wire format into string

type InetIP

type InetIP struct{}

InetIP is a decoder that transforms an ip byte representation into a string

func (*InetIP) Decode

func (i *InetIP) Decode(in []byte, conf config.Decoder) ([]byte, error)

Decode transforms an ip byte representation into a string

type KSym

type KSym struct {
	// contains filtered or unexported fields
}

KSym is a decoder that transforms kernel address to a function name

func (*KSym) Decode

func (k *KSym) Decode(in []byte, conf config.Decoder) ([]byte, error)

Decode transforms kernel address to a function name

type MajorMinor

type MajorMinor struct {
	// contains filtered or unexported fields
}

MajorMinor is a decoder that transforms minormajor device id into name

func (*MajorMinor) Decode

func (m *MajorMinor) Decode(in []byte, conf config.Decoder) ([]byte, error)

Decode transforms minormajor device id into device name like sda2

type Regexp

type Regexp struct {
	// contains filtered or unexported fields
}

Regexp is a decoder that only allows inputs matching regexp

func (*Regexp) Decode

func (r *Regexp) Decode(in []byte, conf config.Decoder) ([]byte, error)

Decode only allows inputs matching regexp

type Set

type Set struct {
	// contains filtered or unexported fields
}

Set is a set of Decoders that may be applied to produce a label

func NewSet

func NewSet() *Set

NewSet creates a Set with all known decoders

func (*Set) Decode

func (s *Set) Decode(in []byte, label config.Label) ([]byte, error)

Decode transforms input byte field into a string according to configuration

func (*Set) DecodeLabels

func (s *Set) DecodeLabels(in []byte, labels []config.Label) ([]string, error)

DecodeLabels transforms eBPF map key bytes into a list of label values according to configuration

type StaticMap

type StaticMap struct{}

StaticMap is a decoded that maps values according to a static map

func (*StaticMap) Decode

func (s *StaticMap) Decode(in []byte, conf config.Decoder) ([]byte, error)

Decode maps values according to a static map

type String

type String struct{}

String is a decoder that decodes strings coming from the kernel

func (*String) Decode

func (s *String) Decode(in []byte, conf config.Decoder) ([]byte, error)

Decode transforms byte slice from the kernel into string

type UInt

type UInt struct{}

UInt is a decoder that transforms unsigned integers into their string values

func (*UInt) Decode

func (u *UInt) Decode(in []byte, conf config.Decoder) ([]byte, error)

Decode transforms unsigned integers into their string values