Update go.mod, Alpine to 3.20.0 and to Go 1.22

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alex@openfaas.com>
This commit is contained in:
Alex Ellis (OpenFaaS Ltd)
2024-05-31 13:54:40 +01:00
parent 65d37f2856
commit 3d2808354d
564 changed files with 15769 additions and 15925 deletions

View File

@ -475,6 +475,9 @@ type HistogramOpts struct {
// now is for testing purposes, by default it's time.Now.
now func() time.Time
// afterFunc is for testing purposes, by default it's time.AfterFunc.
afterFunc func(time.Duration, func()) *time.Timer
}
// HistogramVecOpts bundles the options to create a HistogramVec metric.
@ -526,7 +529,9 @@ func newHistogram(desc *Desc, opts HistogramOpts, labelValues ...string) Histogr
if opts.now == nil {
opts.now = time.Now
}
if opts.afterFunc == nil {
opts.afterFunc = time.AfterFunc
}
h := &histogram{
desc: desc,
upperBounds: opts.Buckets,
@ -536,6 +541,7 @@ func newHistogram(desc *Desc, opts HistogramOpts, labelValues ...string) Histogr
nativeHistogramMinResetDuration: opts.NativeHistogramMinResetDuration,
lastResetTime: opts.now(),
now: opts.now,
afterFunc: opts.afterFunc,
}
if len(h.upperBounds) == 0 && opts.NativeHistogramBucketFactor <= 1 {
h.upperBounds = DefBuckets
@ -716,9 +722,16 @@ type histogram struct {
nativeHistogramMinResetDuration time.Duration
// lastResetTime is protected by mtx. It is also used as created timestamp.
lastResetTime time.Time
// resetScheduled is protected by mtx. It is true if a reset is
// scheduled for a later time (when nativeHistogramMinResetDuration has
// passed).
resetScheduled bool
// now is for testing purposes, by default it's time.Now.
now func() time.Time
// afterFunc is for testing purposes, by default it's time.AfterFunc.
afterFunc func(time.Duration, func()) *time.Timer
}
func (h *histogram) Desc() *Desc {
@ -874,21 +887,31 @@ func (h *histogram) limitBuckets(counts *histogramCounts, value float64, bucket
if h.maybeReset(hotCounts, coldCounts, coldIdx, value, bucket) {
return
}
// One of the other strategies will happen. To undo what they will do as
// soon as enough time has passed to satisfy
// h.nativeHistogramMinResetDuration, schedule a reset at the right time
// if we haven't done so already.
if h.nativeHistogramMinResetDuration > 0 && !h.resetScheduled {
h.resetScheduled = true
h.afterFunc(h.nativeHistogramMinResetDuration-h.now().Sub(h.lastResetTime), h.reset)
}
if h.maybeWidenZeroBucket(hotCounts, coldCounts) {
return
}
h.doubleBucketWidth(hotCounts, coldCounts)
}
// maybeReset resets the whole histogram if at least h.nativeHistogramMinResetDuration
// has been passed. It returns true if the histogram has been reset. The caller
// must have locked h.mtx.
// maybeReset resets the whole histogram if at least
// h.nativeHistogramMinResetDuration has been passed. It returns true if the
// histogram has been reset. The caller must have locked h.mtx.
func (h *histogram) maybeReset(
hot, cold *histogramCounts, coldIdx uint64, value float64, bucket int,
) bool {
// We are using the possibly mocked h.now() rather than
// time.Since(h.lastResetTime) to enable testing.
if h.nativeHistogramMinResetDuration == 0 ||
if h.nativeHistogramMinResetDuration == 0 || // No reset configured.
h.resetScheduled || // Do not interefere if a reset is already scheduled.
h.now().Sub(h.lastResetTime) < h.nativeHistogramMinResetDuration {
return false
}
@ -906,6 +929,29 @@ func (h *histogram) maybeReset(
return true
}
// reset resets the whole histogram. It locks h.mtx itself, i.e. it has to be
// called without having locked h.mtx.
func (h *histogram) reset() {
h.mtx.Lock()
defer h.mtx.Unlock()
n := atomic.LoadUint64(&h.countAndHotIdx)
hotIdx := n >> 63
coldIdx := (^n) >> 63
hot := h.counts[hotIdx]
cold := h.counts[coldIdx]
// Completely reset coldCounts.
h.resetCounts(cold)
// Make coldCounts the new hot counts while resetting countAndHotIdx.
n = atomic.SwapUint64(&h.countAndHotIdx, coldIdx<<63)
count := n & ((1 << 63) - 1)
waitForCooldown(count, hot)
// Finally, reset the formerly hot counts, too.
h.resetCounts(hot)
h.lastResetTime = h.now()
h.resetScheduled = false
}
// maybeWidenZeroBucket widens the zero bucket until it includes the existing
// buckets closest to the zero bucket (which could be two, if an equidistant
// negative and a positive bucket exists, but usually it's only one bucket to be

View File

@ -165,6 +165,8 @@ func validateValuesInLabels(labels Labels, expectedNumberOfValues int) error {
func validateLabelValues(vals []string, expectedNumberOfValues int) error {
if len(vals) != expectedNumberOfValues {
// The call below makes vals escape, copy them to avoid that.
vals := append([]string(nil), vals...)
return fmt.Errorf(
"%w: expected %d label values but got %d in %#v",
errInconsistentCardinality, expectedNumberOfValues,

View File

@ -11,8 +11,8 @@
// See the License for the specific language governing permissions and
// limitations under the License.
//go:build !windows && !js
// +build !windows,!js
//go:build !windows && !js && !wasip1
// +build !windows,!js,!wasip1
package prometheus

View File

@ -0,0 +1,26 @@
// Copyright 2023 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//go:build wasip1
// +build wasip1
package prometheus
func canCollectProcess() bool {
return false
}
func (*processCollector) processCollect(chan<- Metric) {
// noop on this platform
return
}

View File

@ -483,6 +483,8 @@ type Histogram struct {
// histograms.
PositiveDelta []int64 `protobuf:"zigzag64,13,rep,name=positive_delta,json=positiveDelta" json:"positive_delta,omitempty"` // Count delta of each bucket compared to previous one (or to zero for 1st bucket).
PositiveCount []float64 `protobuf:"fixed64,14,rep,name=positive_count,json=positiveCount" json:"positive_count,omitempty"` // Absolute count of each bucket.
// Only used for native histograms. These exemplars MUST have a timestamp.
Exemplars []*Exemplar `protobuf:"bytes,16,rep,name=exemplars" json:"exemplars,omitempty"`
}
func (x *Histogram) Reset() {
@ -622,6 +624,13 @@ func (x *Histogram) GetPositiveCount() []float64 {
return nil
}
func (x *Histogram) GetExemplars() []*Exemplar {
if x != nil {
return x.Exemplars
}
return nil
}
// A Bucket of a conventional histogram, each of which is treated as
// an individual counter-like time series by Prometheus.
type Bucket struct {
@ -923,6 +932,7 @@ type MetricFamily struct {
Help *string `protobuf:"bytes,2,opt,name=help" json:"help,omitempty"`
Type *MetricType `protobuf:"varint,3,opt,name=type,enum=io.prometheus.client.MetricType" json:"type,omitempty"`
Metric []*Metric `protobuf:"bytes,4,rep,name=metric" json:"metric,omitempty"`
Unit *string `protobuf:"bytes,5,opt,name=unit" json:"unit,omitempty"`
}
func (x *MetricFamily) Reset() {
@ -985,6 +995,13 @@ func (x *MetricFamily) GetMetric() []*Metric {
return nil
}
func (x *MetricFamily) GetUnit() string {
if x != nil && x.Unit != nil {
return *x.Unit
}
return ""
}
var File_io_prometheus_client_metrics_proto protoreflect.FileDescriptor
var file_io_prometheus_client_metrics_proto_rawDesc = []byte{
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}
var (
@ -1185,22 +1207,23 @@ var file_io_prometheus_client_metrics_proto_depIdxs = []int32{
13, // 5: io.prometheus.client.Histogram.created_timestamp:type_name -> google.protobuf.Timestamp
9, // 6: io.prometheus.client.Histogram.negative_span:type_name -> io.prometheus.client.BucketSpan
9, // 7: io.prometheus.client.Histogram.positive_span:type_name -> io.prometheus.client.BucketSpan
10, // 8: io.prometheus.client.Bucket.exemplar:type_name -> io.prometheus.client.Exemplar
1, // 9: io.prometheus.client.Exemplar.label:type_name -> io.prometheus.client.LabelPair
13, // 10: io.prometheus.client.Exemplar.timestamp:type_name -> google.protobuf.Timestamp
1, // 11: io.prometheus.client.Metric.label:type_name -> io.prometheus.client.LabelPair
2, // 12: io.prometheus.client.Metric.gauge:type_name -> io.prometheus.client.Gauge
3, // 13: io.prometheus.client.Metric.counter:type_name -> io.prometheus.client.Counter
5, // 14: io.prometheus.client.Metric.summary:type_name -> io.prometheus.client.Summary
6, // 15: io.prometheus.client.Metric.untyped:type_name -> io.prometheus.client.Untyped
7, // 16: io.prometheus.client.Metric.histogram:type_name -> io.prometheus.client.Histogram
0, // 17: io.prometheus.client.MetricFamily.type:type_name -> io.prometheus.client.MetricType
11, // 18: io.prometheus.client.MetricFamily.metric:type_name -> io.prometheus.client.Metric
19, // [19:19] is the sub-list for method output_type
19, // [19:19] is the sub-list for method input_type
19, // [19:19] is the sub-list for extension type_name
19, // [19:19] is the sub-list for extension extendee
0, // [0:19] is the sub-list for field type_name
10, // 8: io.prometheus.client.Histogram.exemplars:type_name -> io.prometheus.client.Exemplar
10, // 9: io.prometheus.client.Bucket.exemplar:type_name -> io.prometheus.client.Exemplar
1, // 10: io.prometheus.client.Exemplar.label:type_name -> io.prometheus.client.LabelPair
13, // 11: io.prometheus.client.Exemplar.timestamp:type_name -> google.protobuf.Timestamp
1, // 12: io.prometheus.client.Metric.label:type_name -> io.prometheus.client.LabelPair
2, // 13: io.prometheus.client.Metric.gauge:type_name -> io.prometheus.client.Gauge
3, // 14: io.prometheus.client.Metric.counter:type_name -> io.prometheus.client.Counter
5, // 15: io.prometheus.client.Metric.summary:type_name -> io.prometheus.client.Summary
6, // 16: io.prometheus.client.Metric.untyped:type_name -> io.prometheus.client.Untyped
7, // 17: io.prometheus.client.Metric.histogram:type_name -> io.prometheus.client.Histogram
0, // 18: io.prometheus.client.MetricFamily.type:type_name -> io.prometheus.client.MetricType
11, // 19: io.prometheus.client.MetricFamily.metric:type_name -> io.prometheus.client.Metric
20, // [20:20] is the sub-list for method output_type
20, // [20:20] is the sub-list for method input_type
20, // [20:20] is the sub-list for extension type_name
20, // [20:20] is the sub-list for extension extendee
0, // [0:20] is the sub-list for field type_name
}
func init() { file_io_prometheus_client_metrics_proto_init() }

View File

@ -14,6 +14,7 @@
package expfmt
import (
"bufio"
"fmt"
"io"
"math"
@ -21,8 +22,8 @@ import (
"net/http"
dto "github.com/prometheus/client_model/go"
"google.golang.org/protobuf/encoding/protodelim"
"github.com/matttproud/golang_protobuf_extensions/pbutil"
"github.com/prometheus/common/model"
)
@ -44,7 +45,7 @@ func ResponseFormat(h http.Header) Format {
mediatype, params, err := mime.ParseMediaType(ct)
if err != nil {
return FmtUnknown
return fmtUnknown
}
const textType = "text/plain"
@ -52,42 +53,44 @@ func ResponseFormat(h http.Header) Format {
switch mediatype {
case ProtoType:
if p, ok := params["proto"]; ok && p != ProtoProtocol {
return FmtUnknown
return fmtUnknown
}
if e, ok := params["encoding"]; ok && e != "delimited" {
return FmtUnknown
return fmtUnknown
}
return FmtProtoDelim
return fmtProtoDelim
case textType:
if v, ok := params["version"]; ok && v != TextVersion {
return FmtUnknown
return fmtUnknown
}
return FmtText
return fmtText
}
return FmtUnknown
return fmtUnknown
}
// NewDecoder returns a new decoder based on the given input format.
// If the input format does not imply otherwise, a text format decoder is returned.
func NewDecoder(r io.Reader, format Format) Decoder {
switch format {
case FmtProtoDelim:
return &protoDecoder{r: r}
switch format.FormatType() {
case TypeProtoDelim:
return &protoDecoder{r: bufio.NewReader(r)}
}
return &textDecoder{r: r}
}
// protoDecoder implements the Decoder interface for protocol buffers.
type protoDecoder struct {
r io.Reader
r protodelim.Reader
}
// Decode implements the Decoder interface.
func (d *protoDecoder) Decode(v *dto.MetricFamily) error {
_, err := pbutil.ReadDelimited(d.r, v)
if err != nil {
opts := protodelim.UnmarshalOptions{
MaxSize: -1,
}
if err := opts.UnmarshalFrom(d.r, v); err != nil {
return err
}
if !model.IsValidMetricName(model.LabelValue(v.GetName())) {

View File

@ -18,10 +18,12 @@ import (
"io"
"net/http"
"github.com/matttproud/golang_protobuf_extensions/pbutil"
"github.com/prometheus/common/internal/bitbucket.org/ww/goautoneg"
"google.golang.org/protobuf/encoding/protodelim"
"google.golang.org/protobuf/encoding/prototext"
"github.com/prometheus/common/internal/bitbucket.org/ww/goautoneg"
"github.com/prometheus/common/model"
dto "github.com/prometheus/client_model/go"
)
@ -60,23 +62,32 @@ func (ec encoderCloser) Close() error {
// as the support is still experimental. To include the option to negotiate
// FmtOpenMetrics, use NegotiateOpenMetrics.
func Negotiate(h http.Header) Format {
escapingScheme := Format(fmt.Sprintf("; escaping=%s", Format(model.NameEscapingScheme.String())))
for _, ac := range goautoneg.ParseAccept(h.Get(hdrAccept)) {
if escapeParam := ac.Params[model.EscapingKey]; escapeParam != "" {
switch Format(escapeParam) {
case model.AllowUTF8, model.EscapeUnderscores, model.EscapeDots, model.EscapeValues:
escapingScheme = Format(fmt.Sprintf("; escaping=%s", escapeParam))
default:
// If the escaping parameter is unknown, ignore it.
}
}
ver := ac.Params["version"]
if ac.Type+"/"+ac.SubType == ProtoType && ac.Params["proto"] == ProtoProtocol {
switch ac.Params["encoding"] {
case "delimited":
return FmtProtoDelim
return fmtProtoDelim + escapingScheme
case "text":
return FmtProtoText
return fmtProtoText + escapingScheme
case "compact-text":
return FmtProtoCompact
return fmtProtoCompact + escapingScheme
}
}
if ac.Type == "text" && ac.SubType == "plain" && (ver == TextVersion || ver == "") {
return FmtText
return fmtText + escapingScheme
}
}
return FmtText
return fmtText + escapingScheme
}
// NegotiateIncludingOpenMetrics works like Negotiate but includes
@ -84,29 +95,40 @@ func Negotiate(h http.Header) Format {
// temporary and will disappear once FmtOpenMetrics is fully supported and as
// such may be negotiated by the normal Negotiate function.
func NegotiateIncludingOpenMetrics(h http.Header) Format {
escapingScheme := Format(fmt.Sprintf("; escaping=%s", Format(model.NameEscapingScheme.String())))
for _, ac := range goautoneg.ParseAccept(h.Get(hdrAccept)) {
if escapeParam := ac.Params[model.EscapingKey]; escapeParam != "" {
switch Format(escapeParam) {
case model.AllowUTF8, model.EscapeUnderscores, model.EscapeDots, model.EscapeValues:
escapingScheme = Format(fmt.Sprintf("; escaping=%s", escapeParam))
default:
// If the escaping parameter is unknown, ignore it.
}
}
ver := ac.Params["version"]
if ac.Type+"/"+ac.SubType == ProtoType && ac.Params["proto"] == ProtoProtocol {
switch ac.Params["encoding"] {
case "delimited":
return FmtProtoDelim
return fmtProtoDelim + escapingScheme
case "text":
return FmtProtoText
return fmtProtoText + escapingScheme
case "compact-text":
return FmtProtoCompact
return fmtProtoCompact + escapingScheme
}
}
if ac.Type == "text" && ac.SubType == "plain" && (ver == TextVersion || ver == "") {
return FmtText
return fmtText + escapingScheme
}
if ac.Type+"/"+ac.SubType == OpenMetricsType && (ver == OpenMetricsVersion_0_0_1 || ver == OpenMetricsVersion_1_0_0 || ver == "") {
if ver == OpenMetricsVersion_1_0_0 {
return FmtOpenMetrics_1_0_0
switch ver {
case OpenMetricsVersion_1_0_0:
return fmtOpenMetrics_1_0_0 + escapingScheme
default:
return fmtOpenMetrics_0_0_1 + escapingScheme
}
return FmtOpenMetrics_0_0_1
}
}
return FmtText
return fmtText + escapingScheme
}
// NewEncoder returns a new encoder based on content type negotiation. All
@ -115,44 +137,54 @@ func NegotiateIncludingOpenMetrics(h http.Header) Format {
// for FmtOpenMetrics, but a future (breaking) release will add the Close method
// to the Encoder interface directly. The current version of the Encoder
// interface is kept for backwards compatibility.
func NewEncoder(w io.Writer, format Format) Encoder {
switch format {
case FmtProtoDelim:
// In cases where the Format does not allow for UTF-8 names, the global
// NameEscapingScheme will be applied.
//
// NewEncoder can be called with additional options to customize the OpenMetrics text output.
// For example:
// NewEncoder(w, FmtOpenMetrics_1_0_0, WithCreatedLines())
//
// Extra options are ignored for all other formats.
func NewEncoder(w io.Writer, format Format, options ...EncoderOption) Encoder {
escapingScheme := format.ToEscapingScheme()
switch format.FormatType() {
case TypeProtoDelim:
return encoderCloser{
encode: func(v *dto.MetricFamily) error {
_, err := pbutil.WriteDelimited(w, v)
_, err := protodelim.MarshalTo(w, v)
return err
},
close: func() error { return nil },
}
case FmtProtoCompact:
case TypeProtoCompact:
return encoderCloser{
encode: func(v *dto.MetricFamily) error {
_, err := fmt.Fprintln(w, v.String())
_, err := fmt.Fprintln(w, model.EscapeMetricFamily(v, escapingScheme).String())
return err
},
close: func() error { return nil },
}
case FmtProtoText:
case TypeProtoText:
return encoderCloser{
encode: func(v *dto.MetricFamily) error {
_, err := fmt.Fprintln(w, prototext.Format(v))
_, err := fmt.Fprintln(w, prototext.Format(model.EscapeMetricFamily(v, escapingScheme)))
return err
},
close: func() error { return nil },
}
case FmtText:
case TypeTextPlain:
return encoderCloser{
encode: func(v *dto.MetricFamily) error {
_, err := MetricFamilyToText(w, v)
_, err := MetricFamilyToText(w, model.EscapeMetricFamily(v, escapingScheme))
return err
},
close: func() error { return nil },
}
case FmtOpenMetrics_0_0_1, FmtOpenMetrics_1_0_0:
case TypeOpenMetrics:
return encoderCloser{
encode: func(v *dto.MetricFamily) error {
_, err := MetricFamilyToOpenMetrics(w, v)
_, err := MetricFamilyToOpenMetrics(w, model.EscapeMetricFamily(v, escapingScheme), options...)
return err
},
close: func() error {

View File

@ -14,30 +14,164 @@
// Package expfmt contains tools for reading and writing Prometheus metrics.
package expfmt
import (
"fmt"
"strings"
"github.com/prometheus/common/model"
)
// Format specifies the HTTP content type of the different wire protocols.
type Format string
// Constants to assemble the Content-Type values for the different wire protocols.
// Constants to assemble the Content-Type values for the different wire
// protocols. The Content-Type strings here are all for the legacy exposition
// formats, where valid characters for metric names and label names are limited.
// Support for arbitrary UTF-8 characters in those names is already partially
// implemented in this module (see model.ValidationScheme), but to actually use
// it on the wire, new content-type strings will have to be agreed upon and
// added here.
const (
TextVersion = "0.0.4"
ProtoType = `application/vnd.google.protobuf`
ProtoProtocol = `io.prometheus.client.MetricFamily`
ProtoFmt = ProtoType + "; proto=" + ProtoProtocol + ";"
protoFmt = ProtoType + "; proto=" + ProtoProtocol + ";"
OpenMetricsType = `application/openmetrics-text`
OpenMetricsVersion_0_0_1 = "0.0.1"
OpenMetricsVersion_1_0_0 = "1.0.0"
// The Content-Type values for the different wire protocols.
FmtUnknown Format = `<unknown>`
FmtText Format = `text/plain; version=` + TextVersion + `; charset=utf-8`
FmtProtoDelim Format = ProtoFmt + ` encoding=delimited`
FmtProtoText Format = ProtoFmt + ` encoding=text`
FmtProtoCompact Format = ProtoFmt + ` encoding=compact-text`
FmtOpenMetrics_1_0_0 Format = OpenMetricsType + `; version=` + OpenMetricsVersion_1_0_0 + `; charset=utf-8`
FmtOpenMetrics_0_0_1 Format = OpenMetricsType + `; version=` + OpenMetricsVersion_0_0_1 + `; charset=utf-8`
// The Content-Type values for the different wire protocols. Note that these
// values are now unexported. If code was relying on comparisons to these
// constants, instead use FormatType().
fmtUnknown Format = `<unknown>`
fmtText Format = `text/plain; version=` + TextVersion + `; charset=utf-8`
fmtProtoDelim Format = protoFmt + ` encoding=delimited`
fmtProtoText Format = protoFmt + ` encoding=text`
fmtProtoCompact Format = protoFmt + ` encoding=compact-text`
fmtOpenMetrics_1_0_0 Format = OpenMetricsType + `; version=` + OpenMetricsVersion_1_0_0 + `; charset=utf-8`
fmtOpenMetrics_0_0_1 Format = OpenMetricsType + `; version=` + OpenMetricsVersion_0_0_1 + `; charset=utf-8`
)
const (
hdrContentType = "Content-Type"
hdrAccept = "Accept"
)
// FormatType is a Go enum representing the overall category for the given
// Format. As the number of Format permutations increases, doing basic string
// comparisons are not feasible, so this enum captures the most useful
// high-level attribute of the Format string.
type FormatType int
const (
TypeUnknown FormatType = iota
TypeProtoCompact
TypeProtoDelim
TypeProtoText
TypeTextPlain
TypeOpenMetrics
)
// NewFormat generates a new Format from the type provided. Mostly used for
// tests, most Formats should be generated as part of content negotiation in
// encode.go. If a type has more than one version, the latest version will be
// returned.
func NewFormat(t FormatType) Format {
switch t {
case TypeProtoCompact:
return fmtProtoCompact
case TypeProtoDelim:
return fmtProtoDelim
case TypeProtoText:
return fmtProtoText
case TypeTextPlain:
return fmtText
case TypeOpenMetrics:
return fmtOpenMetrics_1_0_0
default:
return fmtUnknown
}
}
// NewOpenMetricsFormat generates a new OpenMetrics format matching the
// specified version number.
func NewOpenMetricsFormat(version string) (Format, error) {
if version == OpenMetricsVersion_0_0_1 {
return fmtOpenMetrics_0_0_1, nil
}
if version == OpenMetricsVersion_1_0_0 {
return fmtOpenMetrics_1_0_0, nil
}
return fmtUnknown, fmt.Errorf("unknown open metrics version string")
}
// FormatType deduces an overall FormatType for the given format.
func (f Format) FormatType() FormatType {
toks := strings.Split(string(f), ";")
params := make(map[string]string)
for i, t := range toks {
if i == 0 {
continue
}
args := strings.Split(t, "=")
if len(args) != 2 {
continue
}
params[strings.TrimSpace(args[0])] = strings.TrimSpace(args[1])
}
switch strings.TrimSpace(toks[0]) {
case ProtoType:
if params["proto"] != ProtoProtocol {
return TypeUnknown
}
switch params["encoding"] {
case "delimited":
return TypeProtoDelim
case "text":
return TypeProtoText
case "compact-text":
return TypeProtoCompact
default:
return TypeUnknown
}
case OpenMetricsType:
if params["charset"] != "utf-8" {
return TypeUnknown
}
return TypeOpenMetrics
case "text/plain":
v, ok := params["version"]
if !ok {
return TypeTextPlain
}
if v == TextVersion {
return TypeTextPlain
}
return TypeUnknown
default:
return TypeUnknown
}
}
// ToEscapingScheme returns an EscapingScheme depending on the Format. Iff the
// Format contains a escaping=allow-utf-8 term, it will select NoEscaping. If a valid
// "escaping" term exists, that will be used. Otherwise, the global default will
// be returned.
func (format Format) ToEscapingScheme() model.EscapingScheme {
for _, p := range strings.Split(string(format), ";") {
toks := strings.Split(p, "=")
if len(toks) != 2 {
continue
}
key, value := strings.TrimSpace(toks[0]), strings.TrimSpace(toks[1])
if key == model.EscapingKey {
scheme, err := model.ToEscapingScheme(value)
if err != nil {
return model.NameEscapingScheme
}
return scheme
}
}
return model.NameEscapingScheme
}

View File

@ -22,11 +22,47 @@ import (
"strconv"
"strings"
"google.golang.org/protobuf/types/known/timestamppb"
"github.com/prometheus/common/model"
dto "github.com/prometheus/client_model/go"
)
type encoderOption struct {
withCreatedLines bool
withUnit bool
}
type EncoderOption func(*encoderOption)
// WithCreatedLines is an EncoderOption that configures the OpenMetrics encoder
// to include _created lines (See
// https://github.com/OpenObservability/OpenMetrics/blob/main/specification/OpenMetrics.md#counter-1).
// Created timestamps can improve the accuracy of series reset detection, but
// come with a bandwidth cost.
//
// At the time of writing, created timestamp ingestion is still experimental in
// Prometheus and need to be enabled with the feature-flag
// `--feature-flag=created-timestamp-zero-ingestion`, and breaking changes are
// still possible. Therefore, it is recommended to use this feature with caution.
func WithCreatedLines() EncoderOption {
return func(t *encoderOption) {
t.withCreatedLines = true
}
}
// WithUnit is an EncoderOption enabling a set unit to be written to the output
// and to be added to the metric name, if it's not there already, as a suffix.
// Without opting in this way, the unit will not be added to the metric name and,
// on top of that, the unit will not be passed onto the output, even if it
// were declared in the *dto.MetricFamily struct, i.e. even if in.Unit !=nil.
func WithUnit() EncoderOption {
return func(t *encoderOption) {
t.withUnit = true
}
}
// MetricFamilyToOpenMetrics converts a MetricFamily proto message into the
// OpenMetrics text format and writes the resulting lines to 'out'. It returns
// the number of bytes written and any error encountered. The output will have
@ -35,6 +71,18 @@ import (
// sanity checks. If the input contains duplicate metrics or invalid metric or
// label names, the conversion will result in invalid text format output.
//
// If metric names conform to the legacy validation pattern, they will be placed
// outside the brackets in the traditional way, like `foo{}`. If the metric name
// fails the legacy validation check, it will be placed quoted inside the
// brackets: `{"foo"}`. As stated above, the input is assumed to be santized and
// no error will be thrown in this case.
//
// Similar to metric names, if label names conform to the legacy validation
// pattern, they will be unquoted as normal, like `foo{bar="baz"}`. If the label
// name fails the legacy validation check, it will be quoted:
// `foo{"bar"="baz"}`. As stated above, the input is assumed to be santized and
// no error will be thrown in this case.
//
// This function fulfills the type 'expfmt.encoder'.
//
// Note that OpenMetrics requires a final `# EOF` line. Since this function acts
@ -47,20 +95,34 @@ import (
// Prometheus to OpenMetrics or vice versa:
//
// - Counters are expected to have the `_total` suffix in their metric name. In
// the output, the suffix will be truncated from the `# TYPE` and `# HELP`
// line. A counter with a missing `_total` suffix is not an error. However,
// the output, the suffix will be truncated from the `# TYPE`, `# HELP` and `# UNIT`
// lines. A counter with a missing `_total` suffix is not an error. However,
// its type will be set to `unknown` in that case to avoid invalid OpenMetrics
// output.
//
// - No support for the following (optional) features: `# UNIT` line, `_created`
// line, info type, stateset type, gaugehistogram type.
// - According to the OM specs, the `# UNIT` line is optional, but if populated,
// the unit has to be present in the metric name as its suffix:
// (see https://github.com/OpenObservability/OpenMetrics/blob/main/specification/OpenMetrics.md#unit).
// However, in order to accommodate any potential scenario where such a change in the
// metric name is not desirable, the users are here given the choice of either explicitly
// opt in, in case they wish for the unit to be included in the output AND in the metric name
// as a suffix (see the description of the WithUnit function above),
// or not to opt in, in case they don't want for any of that to happen.
//
// - No support for the following (optional) features: info type,
// stateset type, gaugehistogram type.
//
// - The size of exemplar labels is not checked (i.e. it's possible to create
// exemplars that are larger than allowed by the OpenMetrics specification).
//
// - The value of Counters is not checked. (OpenMetrics doesn't allow counters
// with a `NaN` value.)
func MetricFamilyToOpenMetrics(out io.Writer, in *dto.MetricFamily) (written int, err error) {
func MetricFamilyToOpenMetrics(out io.Writer, in *dto.MetricFamily, options ...EncoderOption) (written int, err error) {
toOM := encoderOption{}
for _, option := range options {
option(&toOM)
}
name := in.GetName()
if name == "" {
return 0, fmt.Errorf("MetricFamily has no name: %s", in)
@ -83,12 +145,15 @@ func MetricFamilyToOpenMetrics(out io.Writer, in *dto.MetricFamily) (written int
}
var (
n int
metricType = in.GetType()
shortName = name
n int
metricType = in.GetType()
compliantName = name
)
if metricType == dto.MetricType_COUNTER && strings.HasSuffix(shortName, "_total") {
shortName = name[:len(name)-6]
if metricType == dto.MetricType_COUNTER && strings.HasSuffix(compliantName, "_total") {
compliantName = name[:len(name)-6]
}
if toOM.withUnit && in.Unit != nil && !strings.HasSuffix(compliantName, fmt.Sprintf("_%s", *in.Unit)) {
compliantName = compliantName + fmt.Sprintf("_%s", *in.Unit)
}
// Comments, first HELP, then TYPE.
@ -98,7 +163,7 @@ func MetricFamilyToOpenMetrics(out io.Writer, in *dto.MetricFamily) (written int
if err != nil {
return
}
n, err = w.WriteString(shortName)
n, err = writeName(w, compliantName)
written += n
if err != nil {
return
@ -124,7 +189,7 @@ func MetricFamilyToOpenMetrics(out io.Writer, in *dto.MetricFamily) (written int
if err != nil {
return
}
n, err = w.WriteString(shortName)
n, err = writeName(w, compliantName)
written += n
if err != nil {
return
@ -151,55 +216,89 @@ func MetricFamilyToOpenMetrics(out io.Writer, in *dto.MetricFamily) (written int
if err != nil {
return
}
if toOM.withUnit && in.Unit != nil {
n, err = w.WriteString("# UNIT ")
written += n
if err != nil {
return
}
n, err = writeName(w, compliantName)
written += n
if err != nil {
return
}
err = w.WriteByte(' ')
written++
if err != nil {
return
}
n, err = writeEscapedString(w, *in.Unit, true)
written += n
if err != nil {
return
}
err = w.WriteByte('\n')
written++
if err != nil {
return
}
}
var createdTsBytesWritten int
// Finally the samples, one line for each.
if metricType == dto.MetricType_COUNTER && strings.HasSuffix(name, "_total") {
compliantName = compliantName + "_total"
}
for _, metric := range in.Metric {
switch metricType {
case dto.MetricType_COUNTER:
if metric.Counter == nil {
return written, fmt.Errorf(
"expected counter in metric %s %s", name, metric,
"expected counter in metric %s %s", compliantName, metric,
)
}
// Note that we have ensured above that either the name
// ends on `_total` or that the rendered type is
// `unknown`. Therefore, no `_total` must be added here.
n, err = writeOpenMetricsSample(
w, name, "", metric, "", 0,
w, compliantName, "", metric, "", 0,
metric.Counter.GetValue(), 0, false,
metric.Counter.Exemplar,
)
if toOM.withCreatedLines && metric.Counter.CreatedTimestamp != nil {
createdTsBytesWritten, err = writeOpenMetricsCreated(w, compliantName, "_total", metric, "", 0, metric.Counter.GetCreatedTimestamp())
n += createdTsBytesWritten
}
case dto.MetricType_GAUGE:
if metric.Gauge == nil {
return written, fmt.Errorf(
"expected gauge in metric %s %s", name, metric,
"expected gauge in metric %s %s", compliantName, metric,
)
}
n, err = writeOpenMetricsSample(
w, name, "", metric, "", 0,
w, compliantName, "", metric, "", 0,
metric.Gauge.GetValue(), 0, false,
nil,
)
case dto.MetricType_UNTYPED:
if metric.Untyped == nil {
return written, fmt.Errorf(
"expected untyped in metric %s %s", name, metric,
"expected untyped in metric %s %s", compliantName, metric,
)
}
n, err = writeOpenMetricsSample(
w, name, "", metric, "", 0,
w, compliantName, "", metric, "", 0,
metric.Untyped.GetValue(), 0, false,
nil,
)
case dto.MetricType_SUMMARY:
if metric.Summary == nil {
return written, fmt.Errorf(
"expected summary in metric %s %s", name, metric,
"expected summary in metric %s %s", compliantName, metric,
)
}
for _, q := range metric.Summary.Quantile {
n, err = writeOpenMetricsSample(
w, name, "", metric,
w, compliantName, "", metric,
model.QuantileLabel, q.GetQuantile(),
q.GetValue(), 0, false,
nil,
@ -210,7 +309,7 @@ func MetricFamilyToOpenMetrics(out io.Writer, in *dto.MetricFamily) (written int
}
}
n, err = writeOpenMetricsSample(
w, name, "_sum", metric, "", 0,
w, compliantName, "_sum", metric, "", 0,
metric.Summary.GetSampleSum(), 0, false,
nil,
)
@ -219,20 +318,24 @@ func MetricFamilyToOpenMetrics(out io.Writer, in *dto.MetricFamily) (written int
return
}
n, err = writeOpenMetricsSample(
w, name, "_count", metric, "", 0,
w, compliantName, "_count", metric, "", 0,
0, metric.Summary.GetSampleCount(), true,
nil,
)
if toOM.withCreatedLines && metric.Summary.CreatedTimestamp != nil {
createdTsBytesWritten, err = writeOpenMetricsCreated(w, compliantName, "", metric, "", 0, metric.Summary.GetCreatedTimestamp())
n += createdTsBytesWritten
}
case dto.MetricType_HISTOGRAM:
if metric.Histogram == nil {
return written, fmt.Errorf(
"expected histogram in metric %s %s", name, metric,
"expected histogram in metric %s %s", compliantName, metric,
)
}
infSeen := false
for _, b := range metric.Histogram.Bucket {
n, err = writeOpenMetricsSample(
w, name, "_bucket", metric,
w, compliantName, "_bucket", metric,
model.BucketLabel, b.GetUpperBound(),
0, b.GetCumulativeCount(), true,
b.Exemplar,
@ -247,7 +350,7 @@ func MetricFamilyToOpenMetrics(out io.Writer, in *dto.MetricFamily) (written int
}
if !infSeen {
n, err = writeOpenMetricsSample(
w, name, "_bucket", metric,
w, compliantName, "_bucket", metric,
model.BucketLabel, math.Inf(+1),
0, metric.Histogram.GetSampleCount(), true,
nil,
@ -258,7 +361,7 @@ func MetricFamilyToOpenMetrics(out io.Writer, in *dto.MetricFamily) (written int
}
}
n, err = writeOpenMetricsSample(
w, name, "_sum", metric, "", 0,
w, compliantName, "_sum", metric, "", 0,
metric.Histogram.GetSampleSum(), 0, false,
nil,
)
@ -267,13 +370,17 @@ func MetricFamilyToOpenMetrics(out io.Writer, in *dto.MetricFamily) (written int
return
}
n, err = writeOpenMetricsSample(
w, name, "_count", metric, "", 0,
w, compliantName, "_count", metric, "", 0,
0, metric.Histogram.GetSampleCount(), true,
nil,
)
if toOM.withCreatedLines && metric.Histogram.CreatedTimestamp != nil {
createdTsBytesWritten, err = writeOpenMetricsCreated(w, compliantName, "", metric, "", 0, metric.Histogram.GetCreatedTimestamp())
n += createdTsBytesWritten
}
default:
return written, fmt.Errorf(
"unexpected type in metric %s %s", name, metric,
"unexpected type in metric %s %s", compliantName, metric,
)
}
written += n
@ -303,21 +410,9 @@ func writeOpenMetricsSample(
floatValue float64, intValue uint64, useIntValue bool,
exemplar *dto.Exemplar,
) (int, error) {
var written int
n, err := w.WriteString(name)
written += n
if err != nil {
return written, err
}
if suffix != "" {
n, err = w.WriteString(suffix)
written += n
if err != nil {
return written, err
}
}
n, err = writeOpenMetricsLabelPairs(
w, metric.Label, additionalLabelName, additionalLabelValue,
written := 0
n, err := writeOpenMetricsNameAndLabelPairs(
w, name+suffix, metric.Label, additionalLabelName, additionalLabelValue,
)
written += n
if err != nil {
@ -350,7 +445,7 @@ func writeOpenMetricsSample(
return written, err
}
}
if exemplar != nil {
if exemplar != nil && len(exemplar.Label) > 0 {
n, err = writeExemplar(w, exemplar)
written += n
if err != nil {
@ -365,27 +460,58 @@ func writeOpenMetricsSample(
return written, nil
}
// writeOpenMetricsLabelPairs works like writeOpenMetrics but formats the float
// in OpenMetrics style.
func writeOpenMetricsLabelPairs(
// writeOpenMetricsNameAndLabelPairs works like writeOpenMetricsSample but
// formats the float in OpenMetrics style.
func writeOpenMetricsNameAndLabelPairs(
w enhancedWriter,
name string,
in []*dto.LabelPair,
additionalLabelName string, additionalLabelValue float64,
) (int, error) {
if len(in) == 0 && additionalLabelName == "" {
return 0, nil
}
var (
written int
separator byte = '{'
written int
separator byte = '{'
metricInsideBraces = false
)
if name != "" {
// If the name does not pass the legacy validity check, we must put the
// metric name inside the braces, quoted.
if !model.IsValidLegacyMetricName(model.LabelValue(name)) {
metricInsideBraces = true
err := w.WriteByte(separator)
written++
if err != nil {
return written, err
}
separator = ','
}
n, err := writeName(w, name)
written += n
if err != nil {
return written, err
}
}
if len(in) == 0 && additionalLabelName == "" {
if metricInsideBraces {
err := w.WriteByte('}')
written++
if err != nil {
return written, err
}
}
return written, nil
}
for _, lp := range in {
err := w.WriteByte(separator)
written++
if err != nil {
return written, err
}
n, err := w.WriteString(lp.GetName())
n, err := writeName(w, lp.GetName())
written += n
if err != nil {
return written, err
@ -442,6 +568,49 @@ func writeOpenMetricsLabelPairs(
return written, nil
}
// writeOpenMetricsCreated writes the created timestamp for a single time series
// following OpenMetrics text format to w, given the metric name, the metric proto
// message itself, optionally a suffix to be removed, e.g. '_total' for counters,
// an additional label name with a float64 value (use empty string as label name if
// not required) and the timestamp that represents the created timestamp.
// The function returns the number of bytes written and any error encountered.
func writeOpenMetricsCreated(w enhancedWriter,
name, suffixToTrim string, metric *dto.Metric,
additionalLabelName string, additionalLabelValue float64,
createdTimestamp *timestamppb.Timestamp,
) (int, error) {
written := 0
n, err := writeOpenMetricsNameAndLabelPairs(
w, strings.TrimSuffix(name, suffixToTrim)+"_created", metric.Label, additionalLabelName, additionalLabelValue,
)
written += n
if err != nil {
return written, err
}
err = w.WriteByte(' ')
written++
if err != nil {
return written, err
}
// TODO(beorn7): Format this directly from components of ts to
// avoid overflow/underflow and precision issues of the float
// conversion.
n, err = writeOpenMetricsFloat(w, float64(createdTimestamp.AsTime().UnixNano())/1e9)
written += n
if err != nil {
return written, err
}
err = w.WriteByte('\n')
written++
if err != nil {
return written, err
}
return written, nil
}
// writeExemplar writes the provided exemplar in OpenMetrics format to w. The
// function returns the number of bytes written and any error encountered.
func writeExemplar(w enhancedWriter, e *dto.Exemplar) (int, error) {
@ -451,7 +620,7 @@ func writeExemplar(w enhancedWriter, e *dto.Exemplar) (int, error) {
if err != nil {
return written, err
}
n, err = writeOpenMetricsLabelPairs(w, e.Label, "", 0)
n, err = writeOpenMetricsNameAndLabelPairs(w, "", e.Label, "", 0)
written += n
if err != nil {
return written, err

View File

@ -62,6 +62,18 @@ var (
// contains duplicate metrics or invalid metric or label names, the conversion
// will result in invalid text format output.
//
// If metric names conform to the legacy validation pattern, they will be placed
// outside the brackets in the traditional way, like `foo{}`. If the metric name
// fails the legacy validation check, it will be placed quoted inside the
// brackets: `{"foo"}`. As stated above, the input is assumed to be santized and
// no error will be thrown in this case.
//
// Similar to metric names, if label names conform to the legacy validation
// pattern, they will be unquoted as normal, like `foo{bar="baz"}`. If the label
// name fails the legacy validation check, it will be quoted:
// `foo{"bar"="baz"}`. As stated above, the input is assumed to be santized and
// no error will be thrown in this case.
//
// This method fulfills the type 'prometheus.encoder'.
func MetricFamilyToText(out io.Writer, in *dto.MetricFamily) (written int, err error) {
// Fail-fast checks.
@ -98,7 +110,7 @@ func MetricFamilyToText(out io.Writer, in *dto.MetricFamily) (written int, err e
if err != nil {
return
}
n, err = w.WriteString(name)
n, err = writeName(w, name)
written += n
if err != nil {
return
@ -124,7 +136,7 @@ func MetricFamilyToText(out io.Writer, in *dto.MetricFamily) (written int, err e
if err != nil {
return
}
n, err = w.WriteString(name)
n, err = writeName(w, name)
written += n
if err != nil {
return
@ -280,21 +292,9 @@ func writeSample(
additionalLabelName string, additionalLabelValue float64,
value float64,
) (int, error) {
var written int
n, err := w.WriteString(name)
written += n
if err != nil {
return written, err
}
if suffix != "" {
n, err = w.WriteString(suffix)
written += n
if err != nil {
return written, err
}
}
n, err = writeLabelPairs(
w, metric.Label, additionalLabelName, additionalLabelValue,
written := 0
n, err := writeNameAndLabelPairs(
w, name+suffix, metric.Label, additionalLabelName, additionalLabelValue,
)
written += n
if err != nil {
@ -330,32 +330,64 @@ func writeSample(
return written, nil
}
// writeLabelPairs converts a slice of LabelPair proto messages plus the
// explicitly given additional label pair into text formatted as required by the
// text format and writes it to 'w'. An empty slice in combination with an empty
// string 'additionalLabelName' results in nothing being written. Otherwise, the
// label pairs are written, escaped as required by the text format, and enclosed
// in '{...}'. The function returns the number of bytes written and any error
// encountered.
func writeLabelPairs(
// writeNameAndLabelPairs converts a slice of LabelPair proto messages plus the
// explicitly given metric name and additional label pair into text formatted as
// required by the text format and writes it to 'w'. An empty slice in
// combination with an empty string 'additionalLabelName' results in nothing
// being written. Otherwise, the label pairs are written, escaped as required by
// the text format, and enclosed in '{...}'. The function returns the number of
// bytes written and any error encountered. If the metric name is not
// legacy-valid, it will be put inside the brackets as well. Legacy-invalid
// label names will also be quoted.
func writeNameAndLabelPairs(
w enhancedWriter,
name string,
in []*dto.LabelPair,
additionalLabelName string, additionalLabelValue float64,
) (int, error) {
if len(in) == 0 && additionalLabelName == "" {
return 0, nil
}
var (
written int
separator byte = '{'
written int
separator byte = '{'
metricInsideBraces = false
)
if name != "" {
// If the name does not pass the legacy validity check, we must put the
// metric name inside the braces.
if !model.IsValidLegacyMetricName(model.LabelValue(name)) {
metricInsideBraces = true
err := w.WriteByte(separator)
written++
if err != nil {
return written, err
}
separator = ','
}
n, err := writeName(w, name)
written += n
if err != nil {
return written, err
}
}
if len(in) == 0 && additionalLabelName == "" {
if metricInsideBraces {
err := w.WriteByte('}')
written++
if err != nil {
return written, err
}
}
return written, nil
}
for _, lp := range in {
err := w.WriteByte(separator)
written++
if err != nil {
return written, err
}
n, err := w.WriteString(lp.GetName())
n, err := writeName(w, lp.GetName())
written += n
if err != nil {
return written, err
@ -462,3 +494,27 @@ func writeInt(w enhancedWriter, i int64) (int, error) {
numBufPool.Put(bp)
return written, err
}
// writeName writes a string as-is if it complies with the legacy naming
// scheme, or escapes it in double quotes if not.
func writeName(w enhancedWriter, name string) (int, error) {
if model.IsValidLegacyMetricName(model.LabelValue(name)) {
return w.WriteString(name)
}
var written int
var err error
err = w.WriteByte('"')
written++
if err != nil {
return written, err
}
var n int
n, err = writeEscapedString(w, name, true)
written += n
if err != nil {
return written, err
}
err = w.WriteByte('"')
written++
return written, err
}

View File

@ -16,6 +16,7 @@ package expfmt
import (
"bufio"
"bytes"
"errors"
"fmt"
"io"
"math"
@ -24,8 +25,9 @@ import (
dto "github.com/prometheus/client_model/go"
"github.com/prometheus/common/model"
"google.golang.org/protobuf/proto"
"github.com/prometheus/common/model"
)
// A stateFn is a function that represents a state in a state machine. By
@ -112,7 +114,7 @@ func (p *TextParser) TextToMetricFamilies(in io.Reader) (map[string]*dto.MetricF
// stream. Turn this error into something nicer and more
// meaningful. (io.EOF is often used as a signal for the legitimate end
// of an input stream.)
if p.err == io.EOF {
if p.err != nil && errors.Is(p.err, io.EOF) {
p.parseError("unexpected end of input stream")
}
return p.metricFamiliesByName, p.err
@ -146,7 +148,7 @@ func (p *TextParser) startOfLine() stateFn {
// which is not an error but the signal that we are done.
// Any other error that happens to align with the start of
// a line is still an error.
if p.err == io.EOF {
if errors.Is(p.err, io.EOF) {
p.err = nil
}
return nil

View File

@ -75,7 +75,12 @@ func (a *Alert) ResolvedAt(ts time.Time) bool {
// Status returns the status of the alert.
func (a *Alert) Status() AlertStatus {
if a.Resolved() {
return a.StatusAt(time.Now())
}
// StatusAt returns the status of the alert at the given timestamp.
func (a *Alert) StatusAt(ts time.Time) AlertStatus {
if a.ResolvedAt(ts) {
return AlertResolved
}
return AlertFiring
@ -90,13 +95,13 @@ func (a *Alert) Validate() error {
return fmt.Errorf("start time must be before end time")
}
if err := a.Labels.Validate(); err != nil {
return fmt.Errorf("invalid label set: %s", err)
return fmt.Errorf("invalid label set: %w", err)
}
if len(a.Labels) == 0 {
return fmt.Errorf("at least one label pair required")
}
if err := a.Annotations.Validate(); err != nil {
return fmt.Errorf("invalid annotations: %s", err)
return fmt.Errorf("invalid annotations: %w", err)
}
return nil
}
@ -127,6 +132,17 @@ func (as Alerts) HasFiring() bool {
return false
}
// HasFiringAt returns true iff one of the alerts is not resolved
// at the time ts.
func (as Alerts) HasFiringAt(ts time.Time) bool {
for _, a := range as {
if !a.ResolvedAt(ts) {
return true
}
}
return false
}
// Status returns StatusFiring iff at least one of the alerts is firing.
func (as Alerts) Status() AlertStatus {
if as.HasFiring() {
@ -134,3 +150,12 @@ func (as Alerts) Status() AlertStatus {
}
return AlertResolved
}
// StatusAt returns StatusFiring iff at least one of the alerts is firing
// at the time ts.
func (as Alerts) StatusAt(ts time.Time) AlertStatus {
if as.HasFiringAt(ts) {
return AlertFiring
}
return AlertResolved
}

View File

@ -97,17 +97,25 @@ var LabelNameRE = regexp.MustCompile("^[a-zA-Z_][a-zA-Z0-9_]*$")
// therewith.
type LabelName string
// IsValid is true iff the label name matches the pattern of LabelNameRE. This
// method, however, does not use LabelNameRE for the check but a much faster
// hardcoded implementation.
// IsValid returns true iff name matches the pattern of LabelNameRE for legacy
// names, and iff it's valid UTF-8 if NameValidationScheme is set to
// UTF8Validation. For the legacy matching, it does not use LabelNameRE for the
// check but a much faster hardcoded implementation.
func (ln LabelName) IsValid() bool {
if len(ln) == 0 {
return false
}
for i, b := range ln {
if !((b >= 'a' && b <= 'z') || (b >= 'A' && b <= 'Z') || b == '_' || (b >= '0' && b <= '9' && i > 0)) {
return false
switch NameValidationScheme {
case LegacyValidation:
for i, b := range ln {
if !((b >= 'a' && b <= 'z') || (b >= 'A' && b <= 'Z') || b == '_' || (b >= '0' && b <= '9' && i > 0)) {
return false
}
}
case UTF8Validation:
return utf8.ValidString(string(ln))
default:
panic(fmt.Sprintf("Invalid name validation scheme requested: %d", NameValidationScheme))
}
return true
}
@ -164,7 +172,7 @@ func (l LabelNames) String() string {
// A LabelValue is an associated value for a LabelName.
type LabelValue string
// IsValid returns true iff the string is a valid UTF8.
// IsValid returns true iff the string is a valid UTF-8.
func (lv LabelValue) IsValid() bool {
return utf8.ValidString(string(lv))
}

View File

@ -17,7 +17,6 @@ import (
"encoding/json"
"fmt"
"sort"
"strings"
)
// A LabelSet is a collection of LabelName and LabelValue pairs. The LabelSet
@ -129,16 +128,6 @@ func (l LabelSet) Merge(other LabelSet) LabelSet {
return result
}
func (l LabelSet) String() string {
lstrs := make([]string, 0, len(l))
for l, v := range l {
lstrs = append(lstrs, fmt.Sprintf("%s=%q", l, v))
}
sort.Strings(lstrs)
return fmt.Sprintf("{%s}", strings.Join(lstrs, ", "))
}
// Fingerprint returns the LabelSet's fingerprint.
func (ls LabelSet) Fingerprint() Fingerprint {
return labelSetToFingerprint(ls)

View File

@ -0,0 +1,45 @@
// Copyright 2024 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//go:build go1.21
package model
import (
"bytes"
"slices"
"strconv"
)
// String will look like `{foo="bar", more="less"}`. Names are sorted alphabetically.
func (l LabelSet) String() string {
var lna [32]string // On stack to avoid memory allocation for sorting names.
labelNames := lna[:0]
for name := range l {
labelNames = append(labelNames, string(name))
}
slices.Sort(labelNames)
var bytea [1024]byte // On stack to avoid memory allocation while building the output.
b := bytes.NewBuffer(bytea[:0])
b.WriteByte('{')
for i, name := range labelNames {
if i > 0 {
b.WriteString(", ")
}
b.WriteString(name)
b.WriteByte('=')
b.Write(strconv.AppendQuote(b.AvailableBuffer(), string(l[LabelName(name)])))
}
b.WriteByte('}')
return b.String()
}

View File

@ -0,0 +1,39 @@
// Copyright 2024 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//go:build !go1.21
package model
import (
"fmt"
"sort"
"strings"
)
// String was optimized using functions not available for go 1.20
// or lower. We keep the old implementation for compatibility with client_golang.
// Once client golang drops support for go 1.20 (scheduled for August 2024), this
// file can be removed.
func (l LabelSet) String() string {
labelNames := make([]string, 0, len(l))
for name := range l {
labelNames = append(labelNames, string(name))
}
sort.Strings(labelNames)
lstrs := make([]string, 0, len(l))
for _, name := range labelNames {
lstrs = append(lstrs, fmt.Sprintf("%s=%q", name, l[LabelName(name)]))
}
return fmt.Sprintf("{%s}", strings.Join(lstrs, ", "))
}

View File

@ -0,0 +1,28 @@
// Copyright 2023 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package model
// MetricType represents metric type values.
type MetricType string
const (
MetricTypeCounter = MetricType("counter")
MetricTypeGauge = MetricType("gauge")
MetricTypeHistogram = MetricType("histogram")
MetricTypeGaugeHistogram = MetricType("gaugehistogram")
MetricTypeSummary = MetricType("summary")
MetricTypeInfo = MetricType("info")
MetricTypeStateset = MetricType("stateset")
MetricTypeUnknown = MetricType("unknown")
)

View File

@ -18,15 +18,84 @@ import (
"regexp"
"sort"
"strings"
"unicode/utf8"
dto "github.com/prometheus/client_model/go"
"google.golang.org/protobuf/proto"
)
var (
// MetricNameRE is a regular expression matching valid metric
// names. Note that the IsValidMetricName function performs the same
// check but faster than a match with this regular expression.
MetricNameRE = regexp.MustCompile(`^[a-zA-Z_:][a-zA-Z0-9_:]*$`)
// NameValidationScheme determines the method of name validation to be used by
// all calls to IsValidMetricName() and LabelName IsValid(). Setting UTF-8 mode
// in isolation from other components that don't support UTF-8 may result in
// bugs or other undefined behavior. This value is intended to be set by
// UTF-8-aware binaries as part of their startup. To avoid need for locking,
// this value should be set once, ideally in an init(), before multiple
// goroutines are started.
NameValidationScheme = LegacyValidation
// NameEscapingScheme defines the default way that names will be
// escaped when presented to systems that do not support UTF-8 names. If the
// Content-Type "escaping" term is specified, that will override this value.
NameEscapingScheme = ValueEncodingEscaping
)
// ValidationScheme is a Go enum for determining how metric and label names will
// be validated by this library.
type ValidationScheme int
const (
// LegacyValidation is a setting that requirets that metric and label names
// conform to the original Prometheus character requirements described by
// MetricNameRE and LabelNameRE.
LegacyValidation ValidationScheme = iota
// UTF8Validation only requires that metric and label names be valid UTF-8
// strings.
UTF8Validation
)
type EscapingScheme int
const (
// NoEscaping indicates that a name will not be escaped. Unescaped names that
// do not conform to the legacy validity check will use a new exposition
// format syntax that will be officially standardized in future versions.
NoEscaping EscapingScheme = iota
// UnderscoreEscaping replaces all legacy-invalid characters with underscores.
UnderscoreEscaping
// DotsEscaping is similar to UnderscoreEscaping, except that dots are
// converted to `_dot_` and pre-existing underscores are converted to `__`.
DotsEscaping
// ValueEncodingEscaping prepends the name with `U__` and replaces all invalid
// characters with the unicode value, surrounded by underscores. Single
// underscores are replaced with double underscores.
ValueEncodingEscaping
)
const (
// EscapingKey is the key in an Accept or Content-Type header that defines how
// metric and label names that do not conform to the legacy character
// requirements should be escaped when being scraped by a legacy prometheus
// system. If a system does not explicitly pass an escaping parameter in the
// Accept header, the default NameEscapingScheme will be used.
EscapingKey = "escaping"
// Possible values for Escaping Key:
AllowUTF8 = "allow-utf-8" // No escaping required.
EscapeUnderscores = "underscores"
EscapeDots = "dots"
EscapeValues = "values"
)
// MetricNameRE is a regular expression matching valid metric
// names. Note that the IsValidMetricName function performs the same
// check but faster than a match with this regular expression.
var MetricNameRE = regexp.MustCompile(`^[a-zA-Z_:][a-zA-Z0-9_:]*$`)
// A Metric is similar to a LabelSet, but the key difference is that a Metric is
// a singleton and refers to one and only one stream of samples.
type Metric LabelSet
@ -86,17 +155,303 @@ func (m Metric) FastFingerprint() Fingerprint {
return LabelSet(m).FastFingerprint()
}
// IsValidMetricName returns true iff name matches the pattern of MetricNameRE.
// IsValidMetricName returns true iff name matches the pattern of MetricNameRE
// for legacy names, and iff it's valid UTF-8 if the UTF8Validation scheme is
// selected.
func IsValidMetricName(n LabelValue) bool {
switch NameValidationScheme {
case LegacyValidation:
return IsValidLegacyMetricName(n)
case UTF8Validation:
if len(n) == 0 {
return false
}
return utf8.ValidString(string(n))
default:
panic(fmt.Sprintf("Invalid name validation scheme requested: %d", NameValidationScheme))
}
}
// IsValidLegacyMetricName is similar to IsValidMetricName but always uses the
// legacy validation scheme regardless of the value of NameValidationScheme.
// This function, however, does not use MetricNameRE for the check but a much
// faster hardcoded implementation.
func IsValidMetricName(n LabelValue) bool {
func IsValidLegacyMetricName(n LabelValue) bool {
if len(n) == 0 {
return false
}
for i, b := range n {
if !((b >= 'a' && b <= 'z') || (b >= 'A' && b <= 'Z') || b == '_' || b == ':' || (b >= '0' && b <= '9' && i > 0)) {
if !isValidLegacyRune(b, i) {
return false
}
}
return true
}
// EscapeMetricFamily escapes the given metric names and labels with the given
// escaping scheme. Returns a new object that uses the same pointers to fields
// when possible and creates new escaped versions so as not to mutate the
// input.
func EscapeMetricFamily(v *dto.MetricFamily, scheme EscapingScheme) *dto.MetricFamily {
if v == nil {
return nil
}
if scheme == NoEscaping {
return v
}
out := &dto.MetricFamily{
Help: v.Help,
Type: v.Type,
Unit: v.Unit,
}
// If the name is nil, copy as-is, don't try to escape.
if v.Name == nil || IsValidLegacyMetricName(LabelValue(v.GetName())) {
out.Name = v.Name
} else {
out.Name = proto.String(EscapeName(v.GetName(), scheme))
}
for _, m := range v.Metric {
if !metricNeedsEscaping(m) {
out.Metric = append(out.Metric, m)
continue
}
escaped := &dto.Metric{
Gauge: m.Gauge,
Counter: m.Counter,
Summary: m.Summary,
Untyped: m.Untyped,
Histogram: m.Histogram,
TimestampMs: m.TimestampMs,
}
for _, l := range m.Label {
if l.GetName() == MetricNameLabel {
if l.Value == nil || IsValidLegacyMetricName(LabelValue(l.GetValue())) {
escaped.Label = append(escaped.Label, l)
continue
}
escaped.Label = append(escaped.Label, &dto.LabelPair{
Name: proto.String(MetricNameLabel),
Value: proto.String(EscapeName(l.GetValue(), scheme)),
})
continue
}
if l.Name == nil || IsValidLegacyMetricName(LabelValue(l.GetName())) {
escaped.Label = append(escaped.Label, l)
continue
}
escaped.Label = append(escaped.Label, &dto.LabelPair{
Name: proto.String(EscapeName(l.GetName(), scheme)),
Value: l.Value,
})
}
out.Metric = append(out.Metric, escaped)
}
return out
}
func metricNeedsEscaping(m *dto.Metric) bool {
for _, l := range m.Label {
if l.GetName() == MetricNameLabel && !IsValidLegacyMetricName(LabelValue(l.GetValue())) {
return true
}
if !IsValidLegacyMetricName(LabelValue(l.GetName())) {
return true
}
}
return false
}
const (
lowerhex = "0123456789abcdef"
)
// EscapeName escapes the incoming name according to the provided escaping
// scheme. Depending on the rules of escaping, this may cause no change in the
// string that is returned. (Especially NoEscaping, which by definition is a
// noop). This function does not do any validation of the name.
func EscapeName(name string, scheme EscapingScheme) string {
if len(name) == 0 {
return name
}
var escaped strings.Builder
switch scheme {
case NoEscaping:
return name
case UnderscoreEscaping:
if IsValidLegacyMetricName(LabelValue(name)) {
return name
}
for i, b := range name {
if isValidLegacyRune(b, i) {
escaped.WriteRune(b)
} else {
escaped.WriteRune('_')
}
}
return escaped.String()
case DotsEscaping:
// Do not early return for legacy valid names, we still escape underscores.
for i, b := range name {
if b == '_' {
escaped.WriteString("__")
} else if b == '.' {
escaped.WriteString("_dot_")
} else if isValidLegacyRune(b, i) {
escaped.WriteRune(b)
} else {
escaped.WriteRune('_')
}
}
return escaped.String()
case ValueEncodingEscaping:
if IsValidLegacyMetricName(LabelValue(name)) {
return name
}
escaped.WriteString("U__")
for i, b := range name {
if isValidLegacyRune(b, i) {
escaped.WriteRune(b)
} else if !utf8.ValidRune(b) {
escaped.WriteString("_FFFD_")
} else if b < 0x100 {
escaped.WriteRune('_')
for s := 4; s >= 0; s -= 4 {
escaped.WriteByte(lowerhex[b>>uint(s)&0xF])
}
escaped.WriteRune('_')
} else if b < 0x10000 {
escaped.WriteRune('_')
for s := 12; s >= 0; s -= 4 {
escaped.WriteByte(lowerhex[b>>uint(s)&0xF])
}
escaped.WriteRune('_')
}
}
return escaped.String()
default:
panic(fmt.Sprintf("invalid escaping scheme %d", scheme))
}
}
// lower function taken from strconv.atoi
func lower(c byte) byte {
return c | ('x' - 'X')
}
// UnescapeName unescapes the incoming name according to the provided escaping
// scheme if possible. Some schemes are partially or totally non-roundtripable.
// If any error is enountered, returns the original input.
func UnescapeName(name string, scheme EscapingScheme) string {
if len(name) == 0 {
return name
}
switch scheme {
case NoEscaping:
return name
case UnderscoreEscaping:
// It is not possible to unescape from underscore replacement.
return name
case DotsEscaping:
name = strings.ReplaceAll(name, "_dot_", ".")
name = strings.ReplaceAll(name, "__", "_")
return name
case ValueEncodingEscaping:
escapedName, found := strings.CutPrefix(name, "U__")
if !found {
return name
}
var unescaped strings.Builder
TOP:
for i := 0; i < len(escapedName); i++ {
// All non-underscores are treated normally.
if escapedName[i] != '_' {
unescaped.WriteByte(escapedName[i])
continue
}
i++
if i >= len(escapedName) {
return name
}
// A double underscore is a single underscore.
if escapedName[i] == '_' {
unescaped.WriteByte('_')
continue
}
// We think we are in a UTF-8 code, process it.
var utf8Val uint
for j := 0; i < len(escapedName); j++ {
// This is too many characters for a utf8 value.
if j > 4 {
return name
}
// Found a closing underscore, convert to a rune, check validity, and append.
if escapedName[i] == '_' {
utf8Rune := rune(utf8Val)
if !utf8.ValidRune(utf8Rune) {
return name
}
unescaped.WriteRune(utf8Rune)
continue TOP
}
r := lower(escapedName[i])
utf8Val *= 16
if r >= '0' && r <= '9' {
utf8Val += uint(r) - '0'
} else if r >= 'a' && r <= 'f' {
utf8Val += uint(r) - 'a' + 10
} else {
return name
}
i++
}
// Didn't find closing underscore, invalid.
return name
}
return unescaped.String()
default:
panic(fmt.Sprintf("invalid escaping scheme %d", scheme))
}
}
func isValidLegacyRune(b rune, i int) bool {
return (b >= 'a' && b <= 'z') || (b >= 'A' && b <= 'Z') || b == '_' || b == ':' || (b >= '0' && b <= '9' && i > 0)
}
func (e EscapingScheme) String() string {
switch e {
case NoEscaping:
return AllowUTF8
case UnderscoreEscaping:
return EscapeUnderscores
case DotsEscaping:
return EscapeDots
case ValueEncodingEscaping:
return EscapeValues
default:
panic(fmt.Sprintf("unknown format scheme %d", e))
}
}
func ToEscapingScheme(s string) (EscapingScheme, error) {
if s == "" {
return NoEscaping, fmt.Errorf("got empty string instead of escaping scheme")
}
switch s {
case AllowUTF8:
return NoEscaping, nil
case EscapeUnderscores:
return UnderscoreEscaping, nil
case EscapeDots:
return DotsEscaping, nil
case EscapeValues:
return ValueEncodingEscaping, nil
default:
return NoEscaping, fmt.Errorf("unknown format scheme " + s)
}
}

View File

@ -22,10 +22,8 @@ import (
// when calculating their combined hash value (aka signature aka fingerprint).
const SeparatorByte byte = 255
var (
// cache the signature of an empty label set.
emptyLabelSignature = hashNew()
)
// cache the signature of an empty label set.
var emptyLabelSignature = hashNew()
// LabelsToSignature returns a quasi-unique signature (i.e., fingerprint) for a
// given label set. (Collisions are possible but unlikely if the number of label

View File

@ -81,7 +81,7 @@ func (s *Silence) Validate() error {
}
for _, m := range s.Matchers {
if err := m.Validate(); err != nil {
return fmt.Errorf("invalid matcher: %s", err)
return fmt.Errorf("invalid matcher: %w", err)
}
}
if s.StartsAt.IsZero() {

View File

@ -21,14 +21,12 @@ import (
"strings"
)
var (
// ZeroSample is the pseudo zero-value of Sample used to signal a
// non-existing sample. It is a Sample with timestamp Earliest, value 0.0,
// and metric nil. Note that the natural zero value of Sample has a timestamp
// of 0, which is possible to appear in a real Sample and thus not suitable
// to signal a non-existing Sample.
ZeroSample = Sample{Timestamp: Earliest}
)
// ZeroSample is the pseudo zero-value of Sample used to signal a
// non-existing sample. It is a Sample with timestamp Earliest, value 0.0,
// and metric nil. Note that the natural zero value of Sample has a timestamp
// of 0, which is possible to appear in a real Sample and thus not suitable
// to signal a non-existing Sample.
var ZeroSample = Sample{Timestamp: Earliest}
// Sample is a sample pair associated with a metric. A single sample must either
// define Value or Histogram but not both. Histogram == nil implies the Value
@ -274,7 +272,7 @@ func (s *Scalar) UnmarshalJSON(b []byte) error {
value, err := strconv.ParseFloat(f, 64)
if err != nil {
return fmt.Errorf("error parsing sample value: %s", err)
return fmt.Errorf("error parsing sample value: %w", err)
}
s.Value = SampleValue(value)
return nil

View File

@ -20,14 +20,12 @@ import (
"strconv"
)
var (
// ZeroSamplePair is the pseudo zero-value of SamplePair used to signal a
// non-existing sample pair. It is a SamplePair with timestamp Earliest and
// value 0.0. Note that the natural zero value of SamplePair has a timestamp
// of 0, which is possible to appear in a real SamplePair and thus not
// suitable to signal a non-existing SamplePair.
ZeroSamplePair = SamplePair{Timestamp: Earliest}
)
// ZeroSamplePair is the pseudo zero-value of SamplePair used to signal a
// non-existing sample pair. It is a SamplePair with timestamp Earliest and
// value 0.0. Note that the natural zero value of SamplePair has a timestamp
// of 0, which is possible to appear in a real SamplePair and thus not
// suitable to signal a non-existing SamplePair.
var ZeroSamplePair = SamplePair{Timestamp: Earliest}
// A SampleValue is a representation of a value for a given sample at a given
// time.

View File

@ -1,9 +1,16 @@
---
linters:
enable:
- errcheck
- godot
- gosimple
- govet
- ineffassign
- misspell
- revive
- staticcheck
- testifylint
- unused
linter-settings:
godot:

View File

@ -1,2 +1,3 @@
* Johannes 'fish' Ziemke <github@freigeist.org> @discordianfish
* Paul Gier <pgier@redhat.com> @pgier
* Paul Gier <paulgier@gmail.com> @pgier
* Ben Kochie <superq@gmail.com> @SuperQ

View File

@ -49,23 +49,23 @@ endif
GOTEST := $(GO) test
GOTEST_DIR :=
ifneq ($(CIRCLE_JOB),)
ifneq ($(shell command -v gotestsum > /dev/null),)
ifneq ($(shell command -v gotestsum 2> /dev/null),)
GOTEST_DIR := test-results
GOTEST := gotestsum --junitfile $(GOTEST_DIR)/unit-tests.xml --
endif
endif
PROMU_VERSION ?= 0.15.0
PROMU_VERSION ?= 0.17.0
PROMU_URL := https://github.com/prometheus/promu/releases/download/v$(PROMU_VERSION)/promu-$(PROMU_VERSION).$(GO_BUILD_PLATFORM).tar.gz
SKIP_GOLANGCI_LINT :=
GOLANGCI_LINT :=
GOLANGCI_LINT_OPTS ?=
GOLANGCI_LINT_VERSION ?= v1.54.2
# golangci-lint only supports linux, darwin and windows platforms on i386/amd64.
GOLANGCI_LINT_VERSION ?= v1.59.0
# golangci-lint only supports linux, darwin and windows platforms on i386/amd64/arm64.
# windows isn't included here because of the path separator being different.
ifeq ($(GOHOSTOS),$(filter $(GOHOSTOS),linux darwin))
ifeq ($(GOHOSTARCH),$(filter $(GOHOSTARCH),amd64 i386))
ifeq ($(GOHOSTARCH),$(filter $(GOHOSTARCH),amd64 i386 arm64))
# If we're in CI and there is an Actions file, that means the linter
# is being run in Actions, so we don't need to run it here.
ifneq (,$(SKIP_GOLANGCI_LINT))
@ -169,16 +169,20 @@ common-vet:
common-lint: $(GOLANGCI_LINT)
ifdef GOLANGCI_LINT
@echo ">> running golangci-lint"
# 'go list' needs to be executed before staticcheck to prepopulate the modules cache.
# Otherwise staticcheck might fail randomly for some reason not yet explained.
$(GO) list -e -compiled -test=true -export=false -deps=true -find=false -tags= -- ./... > /dev/null
$(GOLANGCI_LINT) run $(GOLANGCI_LINT_OPTS) $(pkgs)
endif
.PHONY: common-lint-fix
common-lint-fix: $(GOLANGCI_LINT)
ifdef GOLANGCI_LINT
@echo ">> running golangci-lint fix"
$(GOLANGCI_LINT) run --fix $(GOLANGCI_LINT_OPTS) $(pkgs)
endif
.PHONY: common-yamllint
common-yamllint:
@echo ">> running yamllint on all YAML files in the repository"
ifeq (, $(shell command -v yamllint > /dev/null))
ifeq (, $(shell command -v yamllint 2> /dev/null))
@echo "yamllint not installed so skipping"
else
yamllint .
@ -204,6 +208,10 @@ common-tarball: promu
@echo ">> building release tarball"
$(PROMU) tarball --prefix $(PREFIX) $(BIN_DIR)
.PHONY: common-docker-repo-name
common-docker-repo-name:
@echo "$(DOCKER_REPO)/$(DOCKER_IMAGE_NAME)"
.PHONY: common-docker $(BUILD_DOCKER_ARCHS)
common-docker: $(BUILD_DOCKER_ARCHS)
$(BUILD_DOCKER_ARCHS): common-docker-%:

View File

@ -55,7 +55,7 @@ type ARPEntry struct {
func (fs FS) GatherARPEntries() ([]ARPEntry, error) {
data, err := os.ReadFile(fs.proc.Path("net/arp"))
if err != nil {
return nil, fmt.Errorf("%s: error reading arp %s: %w", ErrFileRead, fs.proc.Path("net/arp"), err)
return nil, fmt.Errorf("%w: error reading arp %s: %w", ErrFileRead, fs.proc.Path("net/arp"), err)
}
return parseARPEntries(data)
@ -78,11 +78,11 @@ func parseARPEntries(data []byte) ([]ARPEntry, error) {
} else if width == expectedDataWidth {
entry, err := parseARPEntry(columns)
if err != nil {
return []ARPEntry{}, fmt.Errorf("%s: Failed to parse ARP entry: %v: %w", ErrFileParse, entry, err)
return []ARPEntry{}, fmt.Errorf("%w: Failed to parse ARP entry: %v: %w", ErrFileParse, entry, err)
}
entries = append(entries, entry)
} else {
return []ARPEntry{}, fmt.Errorf("%s: %d columns found, but expected %d: %w", ErrFileParse, width, expectedDataWidth, err)
return []ARPEntry{}, fmt.Errorf("%w: %d columns found, but expected %d: %w", ErrFileParse, width, expectedDataWidth, err)
}
}

View File

@ -58,8 +58,8 @@ func parseBuddyInfo(r io.Reader) ([]BuddyInfo, error) {
return nil, fmt.Errorf("%w: Invalid number of fields, found: %v", ErrFileParse, parts)
}
node := strings.TrimRight(parts[1], ",")
zone := strings.TrimRight(parts[3], ",")
node := strings.TrimSuffix(parts[1], ",")
zone := strings.TrimSuffix(parts[3], ",")
arraySize := len(parts[4:])
if bucketCount == -1 {
@ -74,7 +74,7 @@ func parseBuddyInfo(r io.Reader) ([]BuddyInfo, error) {
for i := 0; i < arraySize; i++ {
sizes[i], err = strconv.ParseFloat(parts[i+4], 64)
if err != nil {
return nil, fmt.Errorf("%s: Invalid valid in buddyinfo: %f: %w", ErrFileParse, sizes[i], err)
return nil, fmt.Errorf("%w: Invalid valid in buddyinfo: %f: %w", ErrFileParse, sizes[i], err)
}
}

View File

@ -194,7 +194,7 @@ func parseCPUInfoARM(info []byte) ([]CPUInfo, error) {
firstLine := firstNonEmptyLine(scanner)
match, err := regexp.MatchString("^[Pp]rocessor", firstLine)
if !match || !strings.Contains(firstLine, ":") {
return nil, fmt.Errorf("%s: Cannot parse line: %q: %w", ErrFileParse, firstLine, err)
return nil, fmt.Errorf("%w: Cannot parse line: %q: %w", ErrFileParse, firstLine, err)
}
field := strings.SplitN(firstLine, ": ", 2)
@ -386,7 +386,7 @@ func parseCPUInfoLoong(info []byte) ([]CPUInfo, error) {
// find the first "processor" line
firstLine := firstNonEmptyLine(scanner)
if !strings.HasPrefix(firstLine, "system type") || !strings.Contains(firstLine, ":") {
return nil, errors.New("invalid cpuinfo file: " + firstLine)
return nil, fmt.Errorf("%w: %q", ErrFileParse, firstLine)
}
field := strings.SplitN(firstLine, ": ", 2)
cpuinfo := []CPUInfo{}

View File

@ -55,13 +55,13 @@ func (fs FS) Crypto() ([]Crypto, error) {
path := fs.proc.Path("crypto")
b, err := util.ReadFileNoStat(path)
if err != nil {
return nil, fmt.Errorf("%s: Cannot read file %v: %w", ErrFileRead, b, err)
return nil, fmt.Errorf("%w: Cannot read file %v: %w", ErrFileRead, b, err)
}
crypto, err := parseCrypto(bytes.NewReader(b))
if err != nil {
return nil, fmt.Errorf("%s: Cannot parse %v: %w", ErrFileParse, crypto, err)
return nil, fmt.Errorf("%w: Cannot parse %v: %w", ErrFileParse, crypto, err)
}
return crypto, nil
@ -84,7 +84,7 @@ func parseCrypto(r io.Reader) ([]Crypto, error) {
kv := strings.Split(text, ":")
if len(kv) != 2 {
return nil, fmt.Errorf("%w: Cannot parae line: %q", ErrFileParse, text)
return nil, fmt.Errorf("%w: Cannot parse line: %q", ErrFileParse, text)
}
k := strings.TrimSpace(kv[0])

View File

@ -236,7 +236,7 @@ func (fs FS) Fscacheinfo() (Fscacheinfo, error) {
m, err := parseFscacheinfo(bytes.NewReader(b))
if err != nil {
return Fscacheinfo{}, fmt.Errorf("%s: Cannot parse %v: %w", ErrFileParse, m, err)
return Fscacheinfo{}, fmt.Errorf("%w: Cannot parse %v: %w", ErrFileParse, m, err)
}
return *m, nil
@ -245,7 +245,7 @@ func (fs FS) Fscacheinfo() (Fscacheinfo, error) {
func setFSCacheFields(fields []string, setFields ...*uint64) error {
var err error
if len(fields) < len(setFields) {
return fmt.Errorf("%s: Expected %d, but got %d: %w", ErrFileParse, len(setFields), len(fields), err)
return fmt.Errorf("%w: Expected %d, but got %d: %w", ErrFileParse, len(setFields), len(fields), err)
}
for i := range setFields {

View File

@ -221,16 +221,16 @@ func parseIPPort(s string) (net.IP, uint16, error) {
case 46:
ip = net.ParseIP(s[1:40])
if ip == nil {
return nil, 0, fmt.Errorf("%s: Invalid IPv6 addr %s: %w", ErrFileParse, s[1:40], err)
return nil, 0, fmt.Errorf("%w: Invalid IPv6 addr %s: %w", ErrFileParse, s[1:40], err)
}
default:
return nil, 0, fmt.Errorf("%s: Unexpected IP:Port %s: %w", ErrFileParse, s, err)
return nil, 0, fmt.Errorf("%w: Unexpected IP:Port %s: %w", ErrFileParse, s, err)
}
portString := s[len(s)-4:]
if len(portString) != 4 {
return nil, 0,
fmt.Errorf("%s: Unexpected port string format %s: %w", ErrFileParse, portString, err)
fmt.Errorf("%w: Unexpected port string format %s: %w", ErrFileParse, portString, err)
}
port, err := strconv.ParseUint(portString, 16, 16)
if err != nil {

View File

@ -51,7 +51,7 @@ func parseLoad(loadavgBytes []byte) (*LoadAvg, error) {
for i, load := range parts[0:3] {
loads[i], err = strconv.ParseFloat(load, 64)
if err != nil {
return nil, fmt.Errorf("%s: Cannot parse load: %f: %w", ErrFileParse, loads[i], err)
return nil, fmt.Errorf("%w: Cannot parse load: %f: %w", ErrFileParse, loads[i], err)
}
}
return &LoadAvg{

View File

@ -23,7 +23,7 @@ import (
var (
statusLineRE = regexp.MustCompile(`(\d+) blocks .*\[(\d+)/(\d+)\] \[([U_]+)\]`)
recoveryLineBlocksRE = regexp.MustCompile(`\((\d+)/\d+\)`)
recoveryLineBlocksRE = regexp.MustCompile(`\((\d+/\d+)\)`)
recoveryLinePctRE = regexp.MustCompile(`= (.+)%`)
recoveryLineFinishRE = regexp.MustCompile(`finish=(.+)min`)
recoveryLineSpeedRE = regexp.MustCompile(`speed=(.+)[A-Z]`)
@ -50,6 +50,8 @@ type MDStat struct {
BlocksTotal int64
// Number of blocks on the device that are in sync.
BlocksSynced int64
// Number of blocks on the device that need to be synced.
BlocksToBeSynced int64
// progress percentage of current sync
BlocksSyncedPct float64
// estimated finishing time for current sync (in minutes)
@ -70,7 +72,7 @@ func (fs FS) MDStat() ([]MDStat, error) {
}
mdstat, err := parseMDStat(data)
if err != nil {
return nil, fmt.Errorf("%s: Cannot parse %v: %w", ErrFileParse, fs.proc.Path("mdstat"), err)
return nil, fmt.Errorf("%w: Cannot parse %v: %w", ErrFileParse, fs.proc.Path("mdstat"), err)
}
return mdstat, nil
}
@ -90,7 +92,7 @@ func parseMDStat(mdStatData []byte) ([]MDStat, error) {
deviceFields := strings.Fields(line)
if len(deviceFields) < 3 {
return nil, fmt.Errorf("%s: Expected 3+ lines, got %q", ErrFileParse, line)
return nil, fmt.Errorf("%w: Expected 3+ lines, got %q", ErrFileParse, line)
}
mdName := deviceFields[0] // mdx
state := deviceFields[2] // active or inactive
@ -105,7 +107,7 @@ func parseMDStat(mdStatData []byte) ([]MDStat, error) {
active, total, down, size, err := evalStatusLine(lines[i], lines[i+1])
if err != nil {
return nil, fmt.Errorf("%s: Cannot parse md device lines: %v: %w", ErrFileParse, active, err)
return nil, fmt.Errorf("%w: Cannot parse md device lines: %v: %w", ErrFileParse, active, err)
}
syncLineIdx := i + 2
@ -115,7 +117,8 @@ func parseMDStat(mdStatData []byte) ([]MDStat, error) {
// If device is syncing at the moment, get the number of currently
// synced bytes, otherwise that number equals the size of the device.
syncedBlocks := size
blocksSynced := size
blocksToBeSynced := size
speed := float64(0)
finish := float64(0)
pct := float64(0)
@ -136,11 +139,11 @@ func parseMDStat(mdStatData []byte) ([]MDStat, error) {
// Handle case when resync=PENDING or resync=DELAYED.
if strings.Contains(lines[syncLineIdx], "PENDING") ||
strings.Contains(lines[syncLineIdx], "DELAYED") {
syncedBlocks = 0
blocksSynced = 0
} else {
syncedBlocks, pct, finish, speed, err = evalRecoveryLine(lines[syncLineIdx])
blocksSynced, blocksToBeSynced, pct, finish, speed, err = evalRecoveryLine(lines[syncLineIdx])
if err != nil {
return nil, fmt.Errorf("%s: Cannot parse sync line in md device: %q: %w", ErrFileParse, mdName, err)
return nil, fmt.Errorf("%w: Cannot parse sync line in md device: %q: %w", ErrFileParse, mdName, err)
}
}
}
@ -154,7 +157,8 @@ func parseMDStat(mdStatData []byte) ([]MDStat, error) {
DisksSpare: spare,
DisksTotal: total,
BlocksTotal: size,
BlocksSynced: syncedBlocks,
BlocksSynced: blocksSynced,
BlocksToBeSynced: blocksToBeSynced,
BlocksSyncedPct: pct,
BlocksSyncedFinishTime: finish,
BlocksSyncedSpeed: speed,
@ -168,13 +172,13 @@ func parseMDStat(mdStatData []byte) ([]MDStat, error) {
func evalStatusLine(deviceLine, statusLine string) (active, total, down, size int64, err error) {
statusFields := strings.Fields(statusLine)
if len(statusFields) < 1 {
return 0, 0, 0, 0, fmt.Errorf("%s: Unexpected statusline %q: %w", ErrFileParse, statusLine, err)
return 0, 0, 0, 0, fmt.Errorf("%w: Unexpected statusline %q: %w", ErrFileParse, statusLine, err)
}
sizeStr := statusFields[0]
size, err = strconv.ParseInt(sizeStr, 10, 64)
if err != nil {
return 0, 0, 0, 0, fmt.Errorf("%s: Unexpected statusline %q: %w", ErrFileParse, statusLine, err)
return 0, 0, 0, 0, fmt.Errorf("%w: Unexpected statusline %q: %w", ErrFileParse, statusLine, err)
}
if strings.Contains(deviceLine, "raid0") || strings.Contains(deviceLine, "linear") {
@ -189,65 +193,71 @@ func evalStatusLine(deviceLine, statusLine string) (active, total, down, size in
matches := statusLineRE.FindStringSubmatch(statusLine)
if len(matches) != 5 {
return 0, 0, 0, 0, fmt.Errorf("%s: Could not fild all substring matches %s: %w", ErrFileParse, statusLine, err)
return 0, 0, 0, 0, fmt.Errorf("%w: Could not fild all substring matches %s: %w", ErrFileParse, statusLine, err)
}
total, err = strconv.ParseInt(matches[2], 10, 64)
if err != nil {
return 0, 0, 0, 0, fmt.Errorf("%s: Unexpected statusline %q: %w", ErrFileParse, statusLine, err)
return 0, 0, 0, 0, fmt.Errorf("%w: Unexpected statusline %q: %w", ErrFileParse, statusLine, err)
}
active, err = strconv.ParseInt(matches[3], 10, 64)
if err != nil {
return 0, 0, 0, 0, fmt.Errorf("%s: Unexpected active %d: %w", ErrFileParse, active, err)
return 0, 0, 0, 0, fmt.Errorf("%w: Unexpected active %d: %w", ErrFileParse, active, err)
}
down = int64(strings.Count(matches[4], "_"))
return active, total, down, size, nil
}
func evalRecoveryLine(recoveryLine string) (syncedBlocks int64, pct float64, finish float64, speed float64, err error) {
func evalRecoveryLine(recoveryLine string) (blocksSynced int64, blocksToBeSynced int64, pct float64, finish float64, speed float64, err error) {
matches := recoveryLineBlocksRE.FindStringSubmatch(recoveryLine)
if len(matches) != 2 {
return 0, 0, 0, 0, fmt.Errorf("%s: Unexpected recoveryLine %s: %w", ErrFileParse, recoveryLine, err)
return 0, 0, 0, 0, 0, fmt.Errorf("%w: Unexpected recoveryLine blocks %s: %w", ErrFileParse, recoveryLine, err)
}
syncedBlocks, err = strconv.ParseInt(matches[1], 10, 64)
blocks := strings.Split(matches[1], "/")
blocksSynced, err = strconv.ParseInt(blocks[0], 10, 64)
if err != nil {
return 0, 0, 0, 0, fmt.Errorf("%s: Unexpected parsing of recoveryLine %q: %w", ErrFileParse, recoveryLine, err)
return 0, 0, 0, 0, 0, fmt.Errorf("%w: Unable to parse recovery blocks synced %q: %w", ErrFileParse, matches[1], err)
}
blocksToBeSynced, err = strconv.ParseInt(blocks[1], 10, 64)
if err != nil {
return blocksSynced, 0, 0, 0, 0, fmt.Errorf("%w: Unable to parse recovery to be synced blocks %q: %w", ErrFileParse, matches[2], err)
}
// Get percentage complete
matches = recoveryLinePctRE.FindStringSubmatch(recoveryLine)
if len(matches) != 2 {
return syncedBlocks, 0, 0, 0, fmt.Errorf("%w: Unexpected recoveryLine matching percentage %s", ErrFileParse, recoveryLine)
return blocksSynced, blocksToBeSynced, 0, 0, 0, fmt.Errorf("%w: Unexpected recoveryLine matching percentage %s", ErrFileParse, recoveryLine)
}
pct, err = strconv.ParseFloat(strings.TrimSpace(matches[1]), 64)
if err != nil {
return syncedBlocks, 0, 0, 0, fmt.Errorf("%w: Error parsing float from recoveryLine %q", ErrFileParse, recoveryLine)
return blocksSynced, blocksToBeSynced, 0, 0, 0, fmt.Errorf("%w: Error parsing float from recoveryLine %q", ErrFileParse, recoveryLine)
}
// Get time expected left to complete
matches = recoveryLineFinishRE.FindStringSubmatch(recoveryLine)
if len(matches) != 2 {
return syncedBlocks, pct, 0, 0, fmt.Errorf("%w: Unexpected recoveryLine matching est. finish time: %s", ErrFileParse, recoveryLine)
return blocksSynced, blocksToBeSynced, pct, 0, 0, fmt.Errorf("%w: Unexpected recoveryLine matching est. finish time: %s", ErrFileParse, recoveryLine)
}
finish, err = strconv.ParseFloat(matches[1], 64)
if err != nil {
return syncedBlocks, pct, 0, 0, fmt.Errorf("%w: Unable to parse float from recoveryLine: %q", ErrFileParse, recoveryLine)
return blocksSynced, blocksToBeSynced, pct, 0, 0, fmt.Errorf("%w: Unable to parse float from recoveryLine: %q", ErrFileParse, recoveryLine)
}
// Get recovery speed
matches = recoveryLineSpeedRE.FindStringSubmatch(recoveryLine)
if len(matches) != 2 {
return syncedBlocks, pct, finish, 0, fmt.Errorf("%w: Unexpected recoveryLine value: %s", ErrFileParse, recoveryLine)
return blocksSynced, blocksToBeSynced, pct, finish, 0, fmt.Errorf("%w: Unexpected recoveryLine value: %s", ErrFileParse, recoveryLine)
}
speed, err = strconv.ParseFloat(matches[1], 64)
if err != nil {
return syncedBlocks, pct, finish, 0, fmt.Errorf("%s: Error parsing float from recoveryLine: %q: %w", ErrFileParse, recoveryLine, err)
return blocksSynced, blocksToBeSynced, pct, finish, 0, fmt.Errorf("%w: Error parsing float from recoveryLine: %q: %w", ErrFileParse, recoveryLine, err)
}
return syncedBlocks, pct, finish, speed, nil
return blocksSynced, blocksToBeSynced, pct, finish, speed, nil
}
func evalComponentDevices(deviceFields []string) []string {

View File

@ -126,6 +126,7 @@ type Meminfo struct {
VmallocUsed *uint64
// largest contiguous block of vmalloc area which is free
VmallocChunk *uint64
Percpu *uint64
HardwareCorrupted *uint64
AnonHugePages *uint64
ShmemHugePages *uint64
@ -140,6 +141,55 @@ type Meminfo struct {
DirectMap4k *uint64
DirectMap2M *uint64
DirectMap1G *uint64
// The struct fields below are the byte-normalized counterparts to the
// existing struct fields. Values are normalized using the optional
// unit field in the meminfo line.
MemTotalBytes *uint64
MemFreeBytes *uint64
MemAvailableBytes *uint64
BuffersBytes *uint64
CachedBytes *uint64
SwapCachedBytes *uint64
ActiveBytes *uint64
InactiveBytes *uint64
ActiveAnonBytes *uint64
InactiveAnonBytes *uint64
ActiveFileBytes *uint64
InactiveFileBytes *uint64
UnevictableBytes *uint64
MlockedBytes *uint64
SwapTotalBytes *uint64
SwapFreeBytes *uint64
DirtyBytes *uint64
WritebackBytes *uint64
AnonPagesBytes *uint64
MappedBytes *uint64
ShmemBytes *uint64
SlabBytes *uint64
SReclaimableBytes *uint64
SUnreclaimBytes *uint64
KernelStackBytes *uint64
PageTablesBytes *uint64
NFSUnstableBytes *uint64
BounceBytes *uint64
WritebackTmpBytes *uint64
CommitLimitBytes *uint64
CommittedASBytes *uint64
VmallocTotalBytes *uint64
VmallocUsedBytes *uint64
VmallocChunkBytes *uint64
PercpuBytes *uint64
HardwareCorruptedBytes *uint64
AnonHugePagesBytes *uint64
ShmemHugePagesBytes *uint64
ShmemPmdMappedBytes *uint64
CmaTotalBytes *uint64
CmaFreeBytes *uint64
HugepagesizeBytes *uint64
DirectMap4kBytes *uint64
DirectMap2MBytes *uint64
DirectMap1GBytes *uint64
}
// Meminfo returns an information about current kernel/system memory statistics.
@ -152,7 +202,7 @@ func (fs FS) Meminfo() (Meminfo, error) {
m, err := parseMemInfo(bytes.NewReader(b))
if err != nil {
return Meminfo{}, fmt.Errorf("%s: %w", ErrFileParse, err)
return Meminfo{}, fmt.Errorf("%w: %w", ErrFileParse, err)
}
return *m, nil
@ -162,114 +212,176 @@ func parseMemInfo(r io.Reader) (*Meminfo, error) {
var m Meminfo
s := bufio.NewScanner(r)
for s.Scan() {
// Each line has at least a name and value; we ignore the unit.
fields := strings.Fields(s.Text())
if len(fields) < 2 {
return nil, fmt.Errorf("%w: Malformed line %q", ErrFileParse, s.Text())
}
var val, valBytes uint64
v, err := strconv.ParseUint(fields[1], 0, 64)
val, err := strconv.ParseUint(fields[1], 0, 64)
if err != nil {
return nil, err
}
switch len(fields) {
case 2:
// No unit present, use the parsed the value as bytes directly.
valBytes = val
case 3:
// Unit present in optional 3rd field, convert it to
// bytes. The only unit supported within the Linux
// kernel is `kB`.
if fields[2] != "kB" {
return nil, fmt.Errorf("%w: Unsupported unit in optional 3rd field %q", ErrFileParse, fields[2])
}
valBytes = 1024 * val
default:
return nil, fmt.Errorf("%w: Malformed line %q", ErrFileParse, s.Text())
}
switch fields[0] {
case "MemTotal:":
m.MemTotal = &v
m.MemTotal = &val
m.MemTotalBytes = &valBytes
case "MemFree:":
m.MemFree = &v
m.MemFree = &val
m.MemFreeBytes = &valBytes
case "MemAvailable:":
m.MemAvailable = &v
m.MemAvailable = &val
m.MemAvailableBytes = &valBytes
case "Buffers:":
m.Buffers = &v
m.Buffers = &val
m.BuffersBytes = &valBytes
case "Cached:":
m.Cached = &v
m.Cached = &val
m.CachedBytes = &valBytes
case "SwapCached:":
m.SwapCached = &v
m.SwapCached = &val
m.SwapCachedBytes = &valBytes
case "Active:":
m.Active = &v
m.Active = &val
m.ActiveBytes = &valBytes
case "Inactive:":
m.Inactive = &v
m.Inactive = &val
m.InactiveBytes = &valBytes
case "Active(anon):":
m.ActiveAnon = &v
m.ActiveAnon = &val
m.ActiveAnonBytes = &valBytes
case "Inactive(anon):":
m.InactiveAnon = &v
m.InactiveAnon = &val
m.InactiveAnonBytes = &valBytes
case "Active(file):":
m.ActiveFile = &v
m.ActiveFile = &val
m.ActiveFileBytes = &valBytes
case "Inactive(file):":
m.InactiveFile = &v
m.InactiveFile = &val
m.InactiveFileBytes = &valBytes
case "Unevictable:":
m.Unevictable = &v
m.Unevictable = &val
m.UnevictableBytes = &valBytes
case "Mlocked:":
m.Mlocked = &v
m.Mlocked = &val
m.MlockedBytes = &valBytes
case "SwapTotal:":
m.SwapTotal = &v
m.SwapTotal = &val
m.SwapTotalBytes = &valBytes
case "SwapFree:":
m.SwapFree = &v
m.SwapFree = &val
m.SwapFreeBytes = &valBytes
case "Dirty:":
m.Dirty = &v
m.Dirty = &val
m.DirtyBytes = &valBytes
case "Writeback:":
m.Writeback = &v
m.Writeback = &val
m.WritebackBytes = &valBytes
case "AnonPages:":
m.AnonPages = &v
m.AnonPages = &val
m.AnonPagesBytes = &valBytes
case "Mapped:":
m.Mapped = &v
m.Mapped = &val
m.MappedBytes = &valBytes
case "Shmem:":
m.Shmem = &v
m.Shmem = &val
m.ShmemBytes = &valBytes
case "Slab:":
m.Slab = &v
m.Slab = &val
m.SlabBytes = &valBytes
case "SReclaimable:":
m.SReclaimable = &v
m.SReclaimable = &val
m.SReclaimableBytes = &valBytes
case "SUnreclaim:":
m.SUnreclaim = &v
m.SUnreclaim = &val
m.SUnreclaimBytes = &valBytes
case "KernelStack:":
m.KernelStack = &v
m.KernelStack = &val
m.KernelStackBytes = &valBytes
case "PageTables:":
m.PageTables = &v
m.PageTables = &val
m.PageTablesBytes = &valBytes
case "NFS_Unstable:":
m.NFSUnstable = &v
m.NFSUnstable = &val
m.NFSUnstableBytes = &valBytes
case "Bounce:":
m.Bounce = &v
m.Bounce = &val
m.BounceBytes = &valBytes
case "WritebackTmp:":
m.WritebackTmp = &v
m.WritebackTmp = &val
m.WritebackTmpBytes = &valBytes
case "CommitLimit:":
m.CommitLimit = &v
m.CommitLimit = &val
m.CommitLimitBytes = &valBytes
case "Committed_AS:":
m.CommittedAS = &v
m.CommittedAS = &val
m.CommittedASBytes = &valBytes
case "VmallocTotal:":
m.VmallocTotal = &v
m.VmallocTotal = &val
m.VmallocTotalBytes = &valBytes
case "VmallocUsed:":
m.VmallocUsed = &v
m.VmallocUsed = &val
m.VmallocUsedBytes = &valBytes
case "VmallocChunk:":
m.VmallocChunk = &v
m.VmallocChunk = &val
m.VmallocChunkBytes = &valBytes
case "Percpu:":
m.Percpu = &val
m.PercpuBytes = &valBytes
case "HardwareCorrupted:":
m.HardwareCorrupted = &v
m.HardwareCorrupted = &val
m.HardwareCorruptedBytes = &valBytes
case "AnonHugePages:":
m.AnonHugePages = &v
m.AnonHugePages = &val
m.AnonHugePagesBytes = &valBytes
case "ShmemHugePages:":
m.ShmemHugePages = &v
m.ShmemHugePages = &val
m.ShmemHugePagesBytes = &valBytes
case "ShmemPmdMapped:":
m.ShmemPmdMapped = &v
m.ShmemPmdMapped = &val
m.ShmemPmdMappedBytes = &valBytes
case "CmaTotal:":
m.CmaTotal = &v
m.CmaTotal = &val
m.CmaTotalBytes = &valBytes
case "CmaFree:":
m.CmaFree = &v
m.CmaFree = &val
m.CmaFreeBytes = &valBytes
case "HugePages_Total:":
m.HugePagesTotal = &v
m.HugePagesTotal = &val
case "HugePages_Free:":
m.HugePagesFree = &v
m.HugePagesFree = &val
case "HugePages_Rsvd:":
m.HugePagesRsvd = &v
m.HugePagesRsvd = &val
case "HugePages_Surp:":
m.HugePagesSurp = &v
m.HugePagesSurp = &val
case "Hugepagesize:":
m.Hugepagesize = &v
m.Hugepagesize = &val
m.HugepagesizeBytes = &valBytes
case "DirectMap4k:":
m.DirectMap4k = &v
m.DirectMap4k = &val
m.DirectMap4kBytes = &valBytes
case "DirectMap2M:":
m.DirectMap2M = &v
m.DirectMap2M = &val
m.DirectMap2MBytes = &valBytes
case "DirectMap1G:":
m.DirectMap1G = &v
m.DirectMap1G = &val
m.DirectMap1GBytes = &valBytes
}
}

View File

@ -109,7 +109,7 @@ func parseMountInfoString(mountString string) (*MountInfo, error) {
if mountInfo[6] != "" {
mount.OptionalFields, err = mountOptionsParseOptionalFields(mountInfo[6 : mountInfoLength-4])
if err != nil {
return nil, fmt.Errorf("%s: %w", ErrFileParse, err)
return nil, fmt.Errorf("%w: %w", ErrFileParse, err)
}
}
return mount, nil

View File

@ -88,7 +88,7 @@ type MountStatsNFS struct {
// Statistics broken down by filesystem operation.
Operations []NFSOperationStats
// Statistics about the NFS RPC transport.
Transport NFSTransportStats
Transport []NFSTransportStats
}
// mountStats implements MountStats.
@ -194,8 +194,6 @@ type NFSOperationStats struct {
CumulativeTotalResponseMilliseconds uint64
// Duration from when a request was enqueued to when it was completely handled.
CumulativeTotalRequestMilliseconds uint64
// The average time from the point the client sends RPC requests until it receives the response.
AverageRTTMilliseconds float64
// The count of operations that complete with tk_status < 0. These statuses usually indicate error conditions.
Errors uint64
}
@ -434,7 +432,7 @@ func parseMountStatsNFS(s *bufio.Scanner, statVersion string) (*MountStatsNFS, e
return nil, err
}
stats.Transport = *tstats
stats.Transport = append(stats.Transport, *tstats)
}
// When encountering "per-operation statistics", we must break this
@ -582,9 +580,6 @@ func parseNFSOperationStats(s *bufio.Scanner) ([]NFSOperationStats, error) {
CumulativeTotalResponseMilliseconds: ns[6],
CumulativeTotalRequestMilliseconds: ns[7],
}
if ns[0] != 0 {
opStats.AverageRTTMilliseconds = float64(ns[6]) / float64(ns[0])
}
if len(ns) > 8 {
opStats.Errors = ns[8]
@ -632,7 +627,7 @@ func parseNFSTransportStats(ss []string, statVersion string) (*NFSTransportStats
return nil, fmt.Errorf("%w: invalid NFS transport stats 1.1 statement: %v, protocol: %v", ErrFileParse, ss, protocol)
}
default:
return nil, fmt.Errorf("%s: Unrecognized NFS transport stats version: %q, protocol: %v", ErrFileParse, statVersion, protocol)
return nil, fmt.Errorf("%w: Unrecognized NFS transport stats version: %q, protocol: %v", ErrFileParse, statVersion, protocol)
}
// Allocate enough for v1.1 stats since zero value for v1.1 stats will be okay

View File

@ -58,7 +58,7 @@ func readConntrackStat(path string) ([]ConntrackStatEntry, error) {
stat, err := parseConntrackStat(bytes.NewReader(b))
if err != nil {
return nil, fmt.Errorf("%s: Cannot read file: %v: %w", ErrFileRead, path, err)
return nil, fmt.Errorf("%w: Cannot read file: %v: %w", ErrFileRead, path, err)
}
return stat, nil
@ -86,7 +86,7 @@ func parseConntrackStat(r io.Reader) ([]ConntrackStatEntry, error) {
func parseConntrackStatEntry(fields []string) (*ConntrackStatEntry, error) {
entries, err := util.ParseHexUint64s(fields)
if err != nil {
return nil, fmt.Errorf("%s: Cannot parse entry: %d: %w", ErrFileParse, entries, err)
return nil, fmt.Errorf("%w: Cannot parse entry: %d: %w", ErrFileParse, entries, err)
}
numEntries := len(entries)
if numEntries < 16 || numEntries > 17 {

View File

@ -50,10 +50,13 @@ type (
// UsedSockets shows the total number of parsed lines representing the
// number of used sockets.
UsedSockets uint64
// Drops shows the total number of dropped packets of all UPD sockets.
Drops *uint64
}
// netIPSocketLine represents the fields parsed from a single line
// in /proc/net/{t,u}dp{,6}. Fields which are not used by IPSocket are skipped.
// Drops is non-nil for udp{,6}, but nil for tcp{,6}.
// For the proc file format details, see https://linux.die.net/man/5/proc.
netIPSocketLine struct {
Sl uint64
@ -66,6 +69,7 @@ type (
RxQueue uint64
UID uint64
Inode uint64
Drops *uint64
}
)
@ -77,13 +81,14 @@ func newNetIPSocket(file string) (NetIPSocket, error) {
defer f.Close()
var netIPSocket NetIPSocket
isUDP := strings.Contains(file, "udp")
lr := io.LimitReader(f, readLimit)
s := bufio.NewScanner(lr)
s.Scan() // skip first line with headers
for s.Scan() {
fields := strings.Fields(s.Text())
line, err := parseNetIPSocketLine(fields)
line, err := parseNetIPSocketLine(fields, isUDP)
if err != nil {
return nil, err
}
@ -104,19 +109,25 @@ func newNetIPSocketSummary(file string) (*NetIPSocketSummary, error) {
defer f.Close()
var netIPSocketSummary NetIPSocketSummary
var udpPacketDrops uint64
isUDP := strings.Contains(file, "udp")
lr := io.LimitReader(f, readLimit)
s := bufio.NewScanner(lr)
s.Scan() // skip first line with headers
for s.Scan() {
fields := strings.Fields(s.Text())
line, err := parseNetIPSocketLine(fields)
line, err := parseNetIPSocketLine(fields, isUDP)
if err != nil {
return nil, err
}
netIPSocketSummary.TxQueueLength += line.TxQueue
netIPSocketSummary.RxQueueLength += line.RxQueue
netIPSocketSummary.UsedSockets++
if isUDP {
udpPacketDrops += *line.Drops
netIPSocketSummary.Drops = &udpPacketDrops
}
}
if err := s.Err(); err != nil {
return nil, err
@ -130,7 +141,7 @@ func parseIP(hexIP string) (net.IP, error) {
var byteIP []byte
byteIP, err := hex.DecodeString(hexIP)
if err != nil {
return nil, fmt.Errorf("%s: Cannot parse socket field in %q: %w", ErrFileParse, hexIP, err)
return nil, fmt.Errorf("%w: Cannot parse socket field in %q: %w", ErrFileParse, hexIP, err)
}
switch len(byteIP) {
case 4:
@ -144,12 +155,12 @@ func parseIP(hexIP string) (net.IP, error) {
}
return i, nil
default:
return nil, fmt.Errorf("%s: Unable to parse IP %s: %w", ErrFileParse, hexIP, nil)
return nil, fmt.Errorf("%w: Unable to parse IP %s: %v", ErrFileParse, hexIP, nil)
}
}
// parseNetIPSocketLine parses a single line, represented by a list of fields.
func parseNetIPSocketLine(fields []string) (*netIPSocketLine, error) {
func parseNetIPSocketLine(fields []string, isUDP bool) (*netIPSocketLine, error) {
line := &netIPSocketLine{}
if len(fields) < 10 {
return nil, fmt.Errorf(
@ -167,7 +178,7 @@ func parseNetIPSocketLine(fields []string) (*netIPSocketLine, error) {
}
if line.Sl, err = strconv.ParseUint(s[0], 0, 64); err != nil {
return nil, fmt.Errorf("%s: Unable to parse sl field in %q: %w", ErrFileParse, line.Sl, err)
return nil, fmt.Errorf("%w: Unable to parse sl field in %q: %w", ErrFileParse, line.Sl, err)
}
// local_address
l := strings.Split(fields[1], ":")
@ -178,7 +189,7 @@ func parseNetIPSocketLine(fields []string) (*netIPSocketLine, error) {
return nil, err
}
if line.LocalPort, err = strconv.ParseUint(l[1], 16, 64); err != nil {
return nil, fmt.Errorf("%s: Unable to parse local_address port value line %q: %w", ErrFileParse, line.LocalPort, err)
return nil, fmt.Errorf("%w: Unable to parse local_address port value line %q: %w", ErrFileParse, line.LocalPort, err)
}
// remote_address
@ -190,12 +201,12 @@ func parseNetIPSocketLine(fields []string) (*netIPSocketLine, error) {
return nil, err
}
if line.RemPort, err = strconv.ParseUint(r[1], 16, 64); err != nil {
return nil, fmt.Errorf("%s: Cannot parse rem_address port value in %q: %w", ErrFileParse, line.RemPort, err)
return nil, fmt.Errorf("%w: Cannot parse rem_address port value in %q: %w", ErrFileParse, line.RemPort, err)
}
// st
if line.St, err = strconv.ParseUint(fields[3], 16, 64); err != nil {
return nil, fmt.Errorf("%s: Cannot parse st value in %q: %w", ErrFileParse, line.St, err)
return nil, fmt.Errorf("%w: Cannot parse st value in %q: %w", ErrFileParse, line.St, err)
}
// tx_queue and rx_queue
@ -208,20 +219,29 @@ func parseNetIPSocketLine(fields []string) (*netIPSocketLine, error) {
)
}
if line.TxQueue, err = strconv.ParseUint(q[0], 16, 64); err != nil {
return nil, fmt.Errorf("%s: Cannot parse tx_queue value in %q: %w", ErrFileParse, line.TxQueue, err)
return nil, fmt.Errorf("%w: Cannot parse tx_queue value in %q: %w", ErrFileParse, line.TxQueue, err)
}
if line.RxQueue, err = strconv.ParseUint(q[1], 16, 64); err != nil {
return nil, fmt.Errorf("%s: Cannot parse trx_queue value in %q: %w", ErrFileParse, line.RxQueue, err)
return nil, fmt.Errorf("%w: Cannot parse trx_queue value in %q: %w", ErrFileParse, line.RxQueue, err)
}
// uid
if line.UID, err = strconv.ParseUint(fields[7], 0, 64); err != nil {
return nil, fmt.Errorf("%s: Cannot parse UID value in %q: %w", ErrFileParse, line.UID, err)
return nil, fmt.Errorf("%w: Cannot parse UID value in %q: %w", ErrFileParse, line.UID, err)
}
// inode
if line.Inode, err = strconv.ParseUint(fields[9], 0, 64); err != nil {
return nil, fmt.Errorf("%s: Cannot parse inode value in %q: %w", ErrFileParse, line.Inode, err)
return nil, fmt.Errorf("%w: Cannot parse inode value in %q: %w", ErrFileParse, line.Inode, err)
}
// drops
if isUDP {
drops, err := strconv.ParseUint(fields[12], 0, 64)
if err != nil {
return nil, fmt.Errorf("%w: Cannot parse drops value in %q: %w", ErrFileParse, drops, err)
}
line.Drops = &drops
}
return line, nil

View File

@ -69,7 +69,7 @@ func readSockstat(name string) (*NetSockstat, error) {
stat, err := parseSockstat(bytes.NewReader(b))
if err != nil {
return nil, fmt.Errorf("%s: sockstats from %q: %w", ErrFileRead, name, err)
return nil, fmt.Errorf("%w: sockstats from %q: %w", ErrFileRead, name, err)
}
return stat, nil
@ -89,7 +89,7 @@ func parseSockstat(r io.Reader) (*NetSockstat, error) {
// The remaining fields are key/value pairs.
kvs, err := parseSockstatKVs(fields[1:])
if err != nil {
return nil, fmt.Errorf("%s: sockstat key/value pairs from %q: %w", ErrFileParse, s.Text(), err)
return nil, fmt.Errorf("%w: sockstat key/value pairs from %q: %w", ErrFileParse, s.Text(), err)
}
// The first field is the protocol. We must trim its colon suffix.

View File

@ -64,7 +64,7 @@ func (fs FS) NetSoftnetStat() ([]SoftnetStat, error) {
entries, err := parseSoftnet(bytes.NewReader(b))
if err != nil {
return nil, fmt.Errorf("%s: /proc/net/softnet_stat: %w", ErrFileParse, err)
return nil, fmt.Errorf("%w: /proc/net/softnet_stat: %w", ErrFileParse, err)
}
return entries, nil

View File

@ -0,0 +1,119 @@
// Copyright 2023 Prometheus Team
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package procfs
import (
"bufio"
"fmt"
"os"
"strconv"
"strings"
)
// TLSStat struct represents data in /proc/net/tls_stat.
// See https://docs.kernel.org/networking/tls.html#statistics
type TLSStat struct {
// number of TX sessions currently installed where host handles cryptography
TLSCurrTxSw int
// number of RX sessions currently installed where host handles cryptography
TLSCurrRxSw int
// number of TX sessions currently installed where NIC handles cryptography
TLSCurrTxDevice int
// number of RX sessions currently installed where NIC handles cryptography
TLSCurrRxDevice int
//number of TX sessions opened with host cryptography
TLSTxSw int
//number of RX sessions opened with host cryptography
TLSRxSw int
// number of TX sessions opened with NIC cryptography
TLSTxDevice int
// number of RX sessions opened with NIC cryptography
TLSRxDevice int
// record decryption failed (e.g. due to incorrect authentication tag)
TLSDecryptError int
// number of RX resyncs sent to NICs handling cryptography
TLSRxDeviceResync int
// number of RX records which had to be re-decrypted due to TLS_RX_EXPECT_NO_PAD mis-prediction. Note that this counter will also increment for non-data records.
TLSDecryptRetry int
// number of data RX records which had to be re-decrypted due to TLS_RX_EXPECT_NO_PAD mis-prediction.
TLSRxNoPadViolation int
}
// NewTLSStat reads the tls_stat statistics.
func NewTLSStat() (TLSStat, error) {
fs, err := NewFS(DefaultMountPoint)
if err != nil {
return TLSStat{}, err
}
return fs.NewTLSStat()
}
// NewTLSStat reads the tls_stat statistics.
func (fs FS) NewTLSStat() (TLSStat, error) {
file, err := os.Open(fs.proc.Path("net/tls_stat"))
if err != nil {
return TLSStat{}, err
}
defer file.Close()
var (
tlsstat = TLSStat{}
s = bufio.NewScanner(file)
)
for s.Scan() {
fields := strings.Fields(s.Text())
if len(fields) != 2 {
return TLSStat{}, fmt.Errorf("%w: %q line %q", ErrFileParse, file.Name(), s.Text())
}
name := fields[0]
value, err := strconv.Atoi(fields[1])
if err != nil {
return TLSStat{}, err
}
switch name {
case "TlsCurrTxSw":
tlsstat.TLSCurrTxSw = value
case "TlsCurrRxSw":
tlsstat.TLSCurrRxSw = value
case "TlsCurrTxDevice":
tlsstat.TLSCurrTxDevice = value
case "TlsCurrRxDevice":
tlsstat.TLSCurrRxDevice = value
case "TlsTxSw":
tlsstat.TLSTxSw = value
case "TlsRxSw":
tlsstat.TLSRxSw = value
case "TlsTxDevice":
tlsstat.TLSTxDevice = value
case "TlsRxDevice":
tlsstat.TLSRxDevice = value
case "TlsDecryptError":
tlsstat.TLSDecryptError = value
case "TlsRxDeviceResync":
tlsstat.TLSRxDeviceResync = value
case "TlsDecryptRetry":
tlsstat.TLSDecryptRetry = value
case "TlsRxNoPadViolation":
tlsstat.TLSRxNoPadViolation = value
}
}
return tlsstat, s.Err()
}

View File

@ -108,14 +108,14 @@ func parseNetUNIX(r io.Reader) (*NetUNIX, error) {
line := s.Text()
item, err := nu.parseLine(line, hasInode, minFields)
if err != nil {
return nil, fmt.Errorf("%s: /proc/net/unix encountered data %q: %w", ErrFileParse, line, err)
return nil, fmt.Errorf("%w: /proc/net/unix encountered data %q: %w", ErrFileParse, line, err)
}
nu.Rows = append(nu.Rows, item)
}
if err := s.Err(); err != nil {
return nil, fmt.Errorf("%s: /proc/net/unix encountered data: %w", ErrFileParse, err)
return nil, fmt.Errorf("%w: /proc/net/unix encountered data: %w", ErrFileParse, err)
}
return &nu, nil
@ -136,29 +136,29 @@ func (u *NetUNIX) parseLine(line string, hasInode bool, min int) (*NetUNIXLine,
users, err := u.parseUsers(fields[1])
if err != nil {
return nil, fmt.Errorf("%s: ref count %q: %w", ErrFileParse, fields[1], err)
return nil, fmt.Errorf("%w: ref count %q: %w", ErrFileParse, fields[1], err)
}
flags, err := u.parseFlags(fields[3])
if err != nil {
return nil, fmt.Errorf("%s: Unable to parse flags %q: %w", ErrFileParse, fields[3], err)
return nil, fmt.Errorf("%w: Unable to parse flags %q: %w", ErrFileParse, fields[3], err)
}
typ, err := u.parseType(fields[4])
if err != nil {
return nil, fmt.Errorf("%s: Failed to parse type %q: %w", ErrFileParse, fields[4], err)
return nil, fmt.Errorf("%w: Failed to parse type %q: %w", ErrFileParse, fields[4], err)
}
state, err := u.parseState(fields[5])
if err != nil {
return nil, fmt.Errorf("%s: Failed to parse state %q: %w", ErrFileParse, fields[5], err)
return nil, fmt.Errorf("%w: Failed to parse state %q: %w", ErrFileParse, fields[5], err)
}
var inode uint64
if hasInode {
inode, err = u.parseInode(fields[6])
if err != nil {
return nil, fmt.Errorf("%s failed to parse inode %q: %w", ErrFileParse, fields[6], err)
return nil, fmt.Errorf("%w failed to parse inode %q: %w", ErrFileParse, fields[6], err)
}
}

View File

@ -68,7 +68,7 @@ func (fs FS) Wireless() ([]*Wireless, error) {
m, err := parseWireless(bytes.NewReader(b))
if err != nil {
return nil, fmt.Errorf("%s: wireless: %w", ErrFileParse, err)
return nil, fmt.Errorf("%w: wireless: %w", ErrFileParse, err)
}
return m, nil
@ -114,47 +114,47 @@ func parseWireless(r io.Reader) ([]*Wireless, error) {
qlink, err := strconv.Atoi(strings.TrimSuffix(stats[1], "."))
if err != nil {
return nil, fmt.Errorf("%s: parse Quality:link as integer %q: %w", ErrFileParse, qlink, err)
return nil, fmt.Errorf("%w: parse Quality:link as integer %q: %w", ErrFileParse, qlink, err)
}
qlevel, err := strconv.Atoi(strings.TrimSuffix(stats[2], "."))
if err != nil {
return nil, fmt.Errorf("%s: Quality:level as integer %q: %w", ErrFileParse, qlevel, err)
return nil, fmt.Errorf("%w: Quality:level as integer %q: %w", ErrFileParse, qlevel, err)
}
qnoise, err := strconv.Atoi(strings.TrimSuffix(stats[3], "."))
if err != nil {
return nil, fmt.Errorf("%s: Quality:noise as integer %q: %w", ErrFileParse, qnoise, err)
return nil, fmt.Errorf("%w: Quality:noise as integer %q: %w", ErrFileParse, qnoise, err)
}
dnwid, err := strconv.Atoi(stats[4])
if err != nil {
return nil, fmt.Errorf("%s: Discarded:nwid as integer %q: %w", ErrFileParse, dnwid, err)
return nil, fmt.Errorf("%w: Discarded:nwid as integer %q: %w", ErrFileParse, dnwid, err)
}
dcrypt, err := strconv.Atoi(stats[5])
if err != nil {
return nil, fmt.Errorf("%s: Discarded:crypt as integer %q: %w", ErrFileParse, dcrypt, err)
return nil, fmt.Errorf("%w: Discarded:crypt as integer %q: %w", ErrFileParse, dcrypt, err)
}
dfrag, err := strconv.Atoi(stats[6])
if err != nil {
return nil, fmt.Errorf("%s: Discarded:frag as integer %q: %w", ErrFileParse, dfrag, err)
return nil, fmt.Errorf("%w: Discarded:frag as integer %q: %w", ErrFileParse, dfrag, err)
}
dretry, err := strconv.Atoi(stats[7])
if err != nil {
return nil, fmt.Errorf("%s: Discarded:retry as integer %q: %w", ErrFileParse, dretry, err)
return nil, fmt.Errorf("%w: Discarded:retry as integer %q: %w", ErrFileParse, dretry, err)
}
dmisc, err := strconv.Atoi(stats[8])
if err != nil {
return nil, fmt.Errorf("%s: Discarded:misc as integer %q: %w", ErrFileParse, dmisc, err)
return nil, fmt.Errorf("%w: Discarded:misc as integer %q: %w", ErrFileParse, dmisc, err)
}
mbeacon, err := strconv.Atoi(stats[9])
if err != nil {
return nil, fmt.Errorf("%s: Missed:beacon as integer %q: %w", ErrFileParse, mbeacon, err)
return nil, fmt.Errorf("%w: Missed:beacon as integer %q: %w", ErrFileParse, mbeacon, err)
}
w := &Wireless{
@ -175,7 +175,7 @@ func parseWireless(r io.Reader) ([]*Wireless, error) {
}
if err := scanner.Err(); err != nil {
return nil, fmt.Errorf("%s: Failed to scan /proc/net/wireless: %w", ErrFileRead, err)
return nil, fmt.Errorf("%w: Failed to scan /proc/net/wireless: %w", ErrFileRead, err)
}
return interfaces, nil

View File

@ -111,7 +111,7 @@ func (fs FS) AllProcs() (Procs, error) {
names, err := d.Readdirnames(-1)
if err != nil {
return Procs{}, fmt.Errorf("%s: Cannot read file: %v: %w", ErrFileRead, names, err)
return Procs{}, fmt.Errorf("%w: Cannot read file: %v: %w", ErrFileRead, names, err)
}
p := Procs{}
@ -137,7 +137,7 @@ func (p Proc) CmdLine() ([]string, error) {
return []string{}, nil
}
return strings.Split(string(bytes.TrimRight(data, string("\x00"))), string(byte(0))), nil
return strings.Split(string(bytes.TrimRight(data, "\x00")), "\x00"), nil
}
// Wchan returns the wchan (wait channel) of a process.
@ -212,7 +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("%s: Cannot parse line: %v: %w", ErrFileParse, i, err)
return nil, fmt.Errorf("%w: Cannot parse line: %v: %w", ErrFileParse, i, err)
}
fds[i] = uintptr(fd)
}
@ -297,7 +297,7 @@ func (p Proc) fileDescriptors() ([]string, error) {
names, err := d.Readdirnames(-1)
if err != nil {
return nil, fmt.Errorf("%s: Cannot read file: %v: %w", ErrFileRead, names, err)
return nil, fmt.Errorf("%w: Cannot read file: %v: %w", ErrFileRead, names, err)
}
return names, nil

View File

@ -154,7 +154,7 @@ func parseUint(s string) (uint64, error) {
}
i, err := strconv.ParseUint(s, 10, 64)
if err != nil {
return 0, fmt.Errorf("%s: couldn't parse value %q: %w", ErrFileParse, s, err)
return 0, fmt.Errorf("%w: couldn't parse value %q: %w", ErrFileParse, s, err)
}
return i, nil
}

View File

@ -40,7 +40,7 @@ func (p Proc) Namespaces() (Namespaces, error) {
names, err := d.Readdirnames(-1)
if err != nil {
return nil, fmt.Errorf("%s: failed to read contents of ns dir: %w", ErrFileRead, err)
return nil, fmt.Errorf("%w: failed to read contents of ns dir: %w", ErrFileRead, err)
}
ns := make(Namespaces, len(names))
@ -58,7 +58,7 @@ func (p Proc) Namespaces() (Namespaces, error) {
typ := fields[0]
inode, err := strconv.ParseUint(strings.Trim(fields[1], "[]"), 10, 32)
if err != nil {
return nil, fmt.Errorf("%s: inode from %q: %w", ErrFileParse, fields[1], err)
return nil, fmt.Errorf("%w: inode from %q: %w", ErrFileParse, fields[1], err)
}
ns[name] = Namespace{typ, uint32(inode)}

View File

@ -61,7 +61,7 @@ type PSIStats struct {
func (fs FS) PSIStatsForResource(resource string) (PSIStats, error) {
data, err := util.ReadFileNoStat(fs.proc.Path(fmt.Sprintf("%s/%s", "pressure", resource)))
if err != nil {
return PSIStats{}, fmt.Errorf("%s: psi_stats: unavailable for %q: %w", ErrFileRead, resource, err)
return PSIStats{}, fmt.Errorf("%w: psi_stats: unavailable for %q: %w", ErrFileRead, resource, err)
}
return parsePSIStats(bytes.NewReader(data))

View File

@ -127,7 +127,7 @@ func (s *ProcSMapsRollup) parseLine(line string) error {
}
v := strings.TrimSpace(kv[1])
v = strings.TrimRight(v, " kB")
v = strings.TrimSuffix(v, " kB")
vKBytes, err := strconv.ParseUint(v, 10, 64)
if err != nil {

View File

@ -110,6 +110,11 @@ type ProcStat struct {
Policy uint
// Aggregated block I/O delays, measured in clock ticks (centiseconds).
DelayAcctBlkIOTicks uint64
// Guest time of the process (time spent running a virtual CPU for a guest
// operating system), measured in clock ticks.
GuestTime int
// Guest time of the process's children, measured in clock ticks.
CGuestTime int
proc FS
}
@ -189,6 +194,8 @@ func (p Proc) Stat() (ProcStat, error) {
&s.RTPriority,
&s.Policy,
&s.DelayAcctBlkIOTicks,
&s.GuestTime,
&s.CGuestTime,
)
if err != nil {
return ProcStat{}, err

View File

@ -15,6 +15,7 @@ package procfs
import (
"bytes"
"math/bits"
"sort"
"strconv"
"strings"
@ -76,9 +77,9 @@ type ProcStatus struct {
NonVoluntaryCtxtSwitches uint64
// UIDs of the process (Real, effective, saved set, and filesystem UIDs)
UIDs [4]string
UIDs [4]uint64
// GIDs of the process (Real, effective, saved set, and filesystem GIDs)
GIDs [4]string
GIDs [4]uint64
// CpusAllowedList: List of cpu cores processes are allowed to run on.
CpusAllowedList []uint64
@ -113,22 +114,37 @@ func (p Proc) NewStatus() (ProcStatus, error) {
// convert kB to B
vBytes := vKBytes * 1024
s.fillStatus(k, v, vKBytes, vBytes)
err = s.fillStatus(k, v, vKBytes, vBytes)
if err != nil {
return ProcStatus{}, err
}
}
return s, nil
}
func (s *ProcStatus) fillStatus(k string, vString string, vUint uint64, vUintBytes uint64) {
func (s *ProcStatus) fillStatus(k string, vString string, vUint uint64, vUintBytes uint64) error {
switch k {
case "Tgid":
s.TGID = int(vUint)
case "Name":
s.Name = vString
case "Uid":
copy(s.UIDs[:], strings.Split(vString, "\t"))
var err error
for i, v := range strings.Split(vString, "\t") {
s.UIDs[i], err = strconv.ParseUint(v, 10, bits.UintSize)
if err != nil {
return err
}
}
case "Gid":
copy(s.GIDs[:], strings.Split(vString, "\t"))
var err error
for i, v := range strings.Split(vString, "\t") {
s.GIDs[i], err = strconv.ParseUint(v, 10, bits.UintSize)
if err != nil {
return err
}
}
case "NSpid":
s.NSpids = calcNSPidsList(vString)
case "VmPeak":
@ -173,6 +189,7 @@ func (s *ProcStatus) fillStatus(k string, vString string, vUint uint64, vUintByt
s.CpusAllowedList = calcCpusAllowedList(vString)
}
return nil
}
// TotalCtxtSwitches returns the total context switch.

View File

@ -44,7 +44,7 @@ func (fs FS) SysctlInts(sysctl string) ([]int, error) {
vp := util.NewValueParser(f)
values[i] = vp.Int()
if err := vp.Err(); err != nil {
return nil, fmt.Errorf("%s: field %d in sysctl %s is not a valid int: %w", ErrFileParse, i, sysctl, err)
return nil, fmt.Errorf("%w: field %d in sysctl %s is not a valid int: %w", ErrFileParse, i, sysctl, err)
}
}
return values, nil

View File

@ -74,7 +74,7 @@ func parseSoftirqs(r io.Reader) (Softirqs, error) {
softirqs.Hi = make([]uint64, len(perCPU))
for i, count := range perCPU {
if softirqs.Hi[i], err = strconv.ParseUint(count, 10, 64); err != nil {
return Softirqs{}, fmt.Errorf("%s: couldn't parse %q (HI%d): %w", ErrFileParse, count, i, err)
return Softirqs{}, fmt.Errorf("%w: couldn't parse %q (HI%d): %w", ErrFileParse, count, i, err)
}
}
case parts[0] == "TIMER:":
@ -82,7 +82,7 @@ func parseSoftirqs(r io.Reader) (Softirqs, error) {
softirqs.Timer = make([]uint64, len(perCPU))
for i, count := range perCPU {
if softirqs.Timer[i], err = strconv.ParseUint(count, 10, 64); err != nil {
return Softirqs{}, fmt.Errorf("%s: couldn't parse %q (TIMER%d): %w", ErrFileParse, count, i, err)
return Softirqs{}, fmt.Errorf("%w: couldn't parse %q (TIMER%d): %w", ErrFileParse, count, i, err)
}
}
case parts[0] == "NET_TX:":
@ -90,7 +90,7 @@ func parseSoftirqs(r io.Reader) (Softirqs, error) {
softirqs.NetTx = make([]uint64, len(perCPU))
for i, count := range perCPU {
if softirqs.NetTx[i], err = strconv.ParseUint(count, 10, 64); err != nil {
return Softirqs{}, fmt.Errorf("%s: couldn't parse %q (NET_TX%d): %w", ErrFileParse, count, i, err)
return Softirqs{}, fmt.Errorf("%w: couldn't parse %q (NET_TX%d): %w", ErrFileParse, count, i, err)
}
}
case parts[0] == "NET_RX:":
@ -98,7 +98,7 @@ func parseSoftirqs(r io.Reader) (Softirqs, error) {
softirqs.NetRx = make([]uint64, len(perCPU))
for i, count := range perCPU {
if softirqs.NetRx[i], err = strconv.ParseUint(count, 10, 64); err != nil {
return Softirqs{}, fmt.Errorf("%s: couldn't parse %q (NET_RX%d): %w", ErrFileParse, count, i, err)
return Softirqs{}, fmt.Errorf("%w: couldn't parse %q (NET_RX%d): %w", ErrFileParse, count, i, err)
}
}
case parts[0] == "BLOCK:":
@ -106,7 +106,7 @@ func parseSoftirqs(r io.Reader) (Softirqs, error) {
softirqs.Block = make([]uint64, len(perCPU))
for i, count := range perCPU {
if softirqs.Block[i], err = strconv.ParseUint(count, 10, 64); err != nil {
return Softirqs{}, fmt.Errorf("%s: couldn't parse %q (BLOCK%d): %w", ErrFileParse, count, i, err)
return Softirqs{}, fmt.Errorf("%w: couldn't parse %q (BLOCK%d): %w", ErrFileParse, count, i, err)
}
}
case parts[0] == "IRQ_POLL:":
@ -114,7 +114,7 @@ func parseSoftirqs(r io.Reader) (Softirqs, error) {
softirqs.IRQPoll = make([]uint64, len(perCPU))
for i, count := range perCPU {
if softirqs.IRQPoll[i], err = strconv.ParseUint(count, 10, 64); err != nil {
return Softirqs{}, fmt.Errorf("%s: couldn't parse %q (IRQ_POLL%d): %w", ErrFileParse, count, i, err)
return Softirqs{}, fmt.Errorf("%w: couldn't parse %q (IRQ_POLL%d): %w", ErrFileParse, count, i, err)
}
}
case parts[0] == "TASKLET:":
@ -122,7 +122,7 @@ func parseSoftirqs(r io.Reader) (Softirqs, error) {
softirqs.Tasklet = make([]uint64, len(perCPU))
for i, count := range perCPU {
if softirqs.Tasklet[i], err = strconv.ParseUint(count, 10, 64); err != nil {
return Softirqs{}, fmt.Errorf("%s: couldn't parse %q (TASKLET%d): %w", ErrFileParse, count, i, err)
return Softirqs{}, fmt.Errorf("%w: couldn't parse %q (TASKLET%d): %w", ErrFileParse, count, i, err)
}
}
case parts[0] == "SCHED:":
@ -130,7 +130,7 @@ func parseSoftirqs(r io.Reader) (Softirqs, error) {
softirqs.Sched = make([]uint64, len(perCPU))
for i, count := range perCPU {
if softirqs.Sched[i], err = strconv.ParseUint(count, 10, 64); err != nil {
return Softirqs{}, fmt.Errorf("%s: couldn't parse %q (SCHED%d): %w", ErrFileParse, count, i, err)
return Softirqs{}, fmt.Errorf("%w: couldn't parse %q (SCHED%d): %w", ErrFileParse, count, i, err)
}
}
case parts[0] == "HRTIMER:":
@ -138,7 +138,7 @@ func parseSoftirqs(r io.Reader) (Softirqs, error) {
softirqs.HRTimer = make([]uint64, len(perCPU))
for i, count := range perCPU {
if softirqs.HRTimer[i], err = strconv.ParseUint(count, 10, 64); err != nil {
return Softirqs{}, fmt.Errorf("%s: couldn't parse %q (HRTIMER%d): %w", ErrFileParse, count, i, err)
return Softirqs{}, fmt.Errorf("%w: couldn't parse %q (HRTIMER%d): %w", ErrFileParse, count, i, err)
}
}
case parts[0] == "RCU:":
@ -146,14 +146,14 @@ func parseSoftirqs(r io.Reader) (Softirqs, error) {
softirqs.RCU = make([]uint64, len(perCPU))
for i, count := range perCPU {
if softirqs.RCU[i], err = strconv.ParseUint(count, 10, 64); err != nil {
return Softirqs{}, fmt.Errorf("%s: couldn't parse %q (RCU%d): %w", ErrFileParse, count, i, err)
return Softirqs{}, fmt.Errorf("%w: couldn't parse %q (RCU%d): %w", ErrFileParse, count, i, err)
}
}
}
}
if err := scanner.Err(); err != nil {
return Softirqs{}, fmt.Errorf("%s: couldn't parse softirqs: %w", ErrFileParse, err)
return Softirqs{}, fmt.Errorf("%w: couldn't parse softirqs: %w", ErrFileParse, err)
}
return softirqs, scanner.Err()

View File

@ -93,7 +93,7 @@ func parseCPUStat(line string) (CPUStat, int64, error) {
&cpuStat.Guest, &cpuStat.GuestNice)
if err != nil && err != io.EOF {
return CPUStat{}, -1, fmt.Errorf("%s: couldn't parse %q (cpu): %w", ErrFileParse, line, err)
return CPUStat{}, -1, fmt.Errorf("%w: couldn't parse %q (cpu): %w", ErrFileParse, line, err)
}
if count == 0 {
return CPUStat{}, -1, fmt.Errorf("%w: couldn't parse %q (cpu): 0 elements parsed", ErrFileParse, line)
@ -116,7 +116,7 @@ func parseCPUStat(line string) (CPUStat, int64, error) {
cpuID, err := strconv.ParseInt(cpu[3:], 10, 64)
if err != nil {
return CPUStat{}, -1, fmt.Errorf("%s: couldn't parse %q (cpu/cpuid): %w", ErrFileParse, line, err)
return CPUStat{}, -1, fmt.Errorf("%w: couldn't parse %q (cpu/cpuid): %w", ErrFileParse, line, err)
}
return cpuStat, cpuID, nil
@ -136,7 +136,7 @@ func parseSoftIRQStat(line string) (SoftIRQStat, uint64, error) {
&softIRQStat.Hrtimer, &softIRQStat.Rcu)
if err != nil {
return SoftIRQStat{}, 0, fmt.Errorf("%s: couldn't parse %q (softirq): %w", ErrFileParse, line, err)
return SoftIRQStat{}, 0, fmt.Errorf("%w: couldn't parse %q (softirq): %w", ErrFileParse, line, err)
}
return softIRQStat, total, nil
@ -201,34 +201,34 @@ func parseStat(r io.Reader, fileName string) (Stat, error) {
switch {
case parts[0] == "btime":
if stat.BootTime, err = strconv.ParseUint(parts[1], 10, 64); err != nil {
return Stat{}, fmt.Errorf("%s: couldn't parse %q (btime): %w", ErrFileParse, parts[1], err)
return Stat{}, fmt.Errorf("%w: couldn't parse %q (btime): %w", ErrFileParse, parts[1], err)
}
case parts[0] == "intr":
if stat.IRQTotal, err = strconv.ParseUint(parts[1], 10, 64); err != nil {
return Stat{}, fmt.Errorf("%s: couldn't parse %q (intr): %w", ErrFileParse, parts[1], err)
return Stat{}, fmt.Errorf("%w: couldn't parse %q (intr): %w", ErrFileParse, parts[1], err)
}
numberedIRQs := parts[2:]
stat.IRQ = make([]uint64, len(numberedIRQs))
for i, count := range numberedIRQs {
if stat.IRQ[i], err = strconv.ParseUint(count, 10, 64); err != nil {
return Stat{}, fmt.Errorf("%s: couldn't parse %q (intr%d): %w", ErrFileParse, count, i, err)
return Stat{}, fmt.Errorf("%w: couldn't parse %q (intr%d): %w", ErrFileParse, count, i, err)
}
}
case parts[0] == "ctxt":
if stat.ContextSwitches, err = strconv.ParseUint(parts[1], 10, 64); err != nil {
return Stat{}, fmt.Errorf("%s: couldn't parse %q (ctxt): %w", ErrFileParse, parts[1], err)
return Stat{}, fmt.Errorf("%w: couldn't parse %q (ctxt): %w", ErrFileParse, parts[1], err)
}
case parts[0] == "processes":
if stat.ProcessCreated, err = strconv.ParseUint(parts[1], 10, 64); err != nil {
return Stat{}, fmt.Errorf("%s: couldn't parse %q (processes): %w", ErrFileParse, parts[1], err)
return Stat{}, fmt.Errorf("%w: couldn't parse %q (processes): %w", ErrFileParse, parts[1], err)
}
case parts[0] == "procs_running":
if stat.ProcessesRunning, err = strconv.ParseUint(parts[1], 10, 64); err != nil {
return Stat{}, fmt.Errorf("%s: couldn't parse %q (procs_running): %w", ErrFileParse, parts[1], err)
return Stat{}, fmt.Errorf("%w: couldn't parse %q (procs_running): %w", ErrFileParse, parts[1], err)
}
case parts[0] == "procs_blocked":
if stat.ProcessesBlocked, err = strconv.ParseUint(parts[1], 10, 64); err != nil {
return Stat{}, fmt.Errorf("%s: couldn't parse %q (procs_blocked): %w", ErrFileParse, parts[1], err)
return Stat{}, fmt.Errorf("%w: couldn't parse %q (procs_blocked): %w", ErrFileParse, parts[1], err)
}
case parts[0] == "softirq":
softIRQStats, total, err := parseSoftIRQStat(line)
@ -251,7 +251,7 @@ func parseStat(r io.Reader, fileName string) (Stat, error) {
}
if err := scanner.Err(); err != nil {
return Stat{}, fmt.Errorf("%s: couldn't parse %q: %w", ErrFileParse, fileName, err)
return Stat{}, fmt.Errorf("%w: couldn't parse %q: %w", ErrFileParse, fileName, err)
}
return stat, nil

View File

@ -74,15 +74,15 @@ func parseSwapString(swapString string) (*Swap, error) {
swap.Size, err = strconv.Atoi(swapFields[2])
if err != nil {
return nil, fmt.Errorf("%s: invalid swap size: %s: %w", ErrFileParse, swapFields[2], err)
return nil, fmt.Errorf("%w: invalid swap size: %s: %w", ErrFileParse, swapFields[2], err)
}
swap.Used, err = strconv.Atoi(swapFields[3])
if err != nil {
return nil, fmt.Errorf("%s: invalid swap used: %s: %w", ErrFileParse, swapFields[3], err)
return nil, fmt.Errorf("%w: invalid swap used: %s: %w", ErrFileParse, swapFields[3], err)
}
swap.Priority, err = strconv.Atoi(swapFields[4])
if err != nil {
return nil, fmt.Errorf("%s: invalid swap priority: %s: %w", ErrFileParse, swapFields[4], err)
return nil, fmt.Errorf("%w: invalid swap priority: %s: %w", ErrFileParse, swapFields[4], err)
}
return swap, nil

View File

@ -45,7 +45,7 @@ func (fs FS) AllThreads(pid int) (Procs, error) {
names, err := d.Readdirnames(-1)
if err != nil {
return Procs{}, fmt.Errorf("%s: could not read %q: %w", ErrFileRead, d.Name(), err)
return Procs{}, fmt.Errorf("%w: could not read %q: %w", ErrFileRead, d.Name(), err)
}
t := Procs{}

View File

@ -75,11 +75,11 @@ var nodeZoneRE = regexp.MustCompile(`(\d+), zone\s+(\w+)`)
func (fs FS) Zoneinfo() ([]Zoneinfo, error) {
data, err := os.ReadFile(fs.proc.Path("zoneinfo"))
if err != nil {
return nil, fmt.Errorf("%s: error reading zoneinfo %q: %w", ErrFileRead, fs.proc.Path("zoneinfo"), err)
return nil, fmt.Errorf("%w: error reading zoneinfo %q: %w", ErrFileRead, fs.proc.Path("zoneinfo"), err)
}
zoneinfo, err := parseZoneinfo(data)
if err != nil {
return nil, fmt.Errorf("%s: error parsing zoneinfo %q: %w", ErrFileParse, fs.proc.Path("zoneinfo"), err)
return nil, fmt.Errorf("%w: error parsing zoneinfo %q: %w", ErrFileParse, fs.proc.Path("zoneinfo"), err)
}
return zoneinfo, nil
}