Update vendor with Kubernetes v1.24 dependencies

Signed-off-by: RainbowMango <renhongcai@huawei.com>
This commit is contained in:
RainbowMango 2022-06-25 14:38:47 +08:00
parent 1293a604f8
commit 614e285083
834 changed files with 23171 additions and 23771 deletions

22
vendor/github.com/blang/semver/v4/LICENSE generated vendored Normal file
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The MIT License
Copyright (c) 2014 Benedikt Lang <github at benediktlang.de>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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vendor/github.com/blang/semver/v4/json.go generated vendored Normal file
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package semver
import (
"encoding/json"
)
// MarshalJSON implements the encoding/json.Marshaler interface.
func (v Version) MarshalJSON() ([]byte, error) {
return json.Marshal(v.String())
}
// UnmarshalJSON implements the encoding/json.Unmarshaler interface.
func (v *Version) UnmarshalJSON(data []byte) (err error) {
var versionString string
if err = json.Unmarshal(data, &versionString); err != nil {
return
}
*v, err = Parse(versionString)
return
}

416
vendor/github.com/blang/semver/v4/range.go generated vendored Normal file
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package semver
import (
"fmt"
"strconv"
"strings"
"unicode"
)
type wildcardType int
const (
noneWildcard wildcardType = iota
majorWildcard wildcardType = 1
minorWildcard wildcardType = 2
patchWildcard wildcardType = 3
)
func wildcardTypefromInt(i int) wildcardType {
switch i {
case 1:
return majorWildcard
case 2:
return minorWildcard
case 3:
return patchWildcard
default:
return noneWildcard
}
}
type comparator func(Version, Version) bool
var (
compEQ comparator = func(v1 Version, v2 Version) bool {
return v1.Compare(v2) == 0
}
compNE = func(v1 Version, v2 Version) bool {
return v1.Compare(v2) != 0
}
compGT = func(v1 Version, v2 Version) bool {
return v1.Compare(v2) == 1
}
compGE = func(v1 Version, v2 Version) bool {
return v1.Compare(v2) >= 0
}
compLT = func(v1 Version, v2 Version) bool {
return v1.Compare(v2) == -1
}
compLE = func(v1 Version, v2 Version) bool {
return v1.Compare(v2) <= 0
}
)
type versionRange struct {
v Version
c comparator
}
// rangeFunc creates a Range from the given versionRange.
func (vr *versionRange) rangeFunc() Range {
return Range(func(v Version) bool {
return vr.c(v, vr.v)
})
}
// Range represents a range of versions.
// A Range can be used to check if a Version satisfies it:
//
// range, err := semver.ParseRange(">1.0.0 <2.0.0")
// range(semver.MustParse("1.1.1") // returns true
type Range func(Version) bool
// OR combines the existing Range with another Range using logical OR.
func (rf Range) OR(f Range) Range {
return Range(func(v Version) bool {
return rf(v) || f(v)
})
}
// AND combines the existing Range with another Range using logical AND.
func (rf Range) AND(f Range) Range {
return Range(func(v Version) bool {
return rf(v) && f(v)
})
}
// ParseRange parses a range and returns a Range.
// If the range could not be parsed an error is returned.
//
// Valid ranges are:
// - "<1.0.0"
// - "<=1.0.0"
// - ">1.0.0"
// - ">=1.0.0"
// - "1.0.0", "=1.0.0", "==1.0.0"
// - "!1.0.0", "!=1.0.0"
//
// A Range can consist of multiple ranges separated by space:
// Ranges can be linked by logical AND:
// - ">1.0.0 <2.0.0" would match between both ranges, so "1.1.1" and "1.8.7" but not "1.0.0" or "2.0.0"
// - ">1.0.0 <3.0.0 !2.0.3-beta.2" would match every version between 1.0.0 and 3.0.0 except 2.0.3-beta.2
//
// Ranges can also be linked by logical OR:
// - "<2.0.0 || >=3.0.0" would match "1.x.x" and "3.x.x" but not "2.x.x"
//
// AND has a higher precedence than OR. It's not possible to use brackets.
//
// Ranges can be combined by both AND and OR
//
// - `>1.0.0 <2.0.0 || >3.0.0 !4.2.1` would match `1.2.3`, `1.9.9`, `3.1.1`, but not `4.2.1`, `2.1.1`
func ParseRange(s string) (Range, error) {
parts := splitAndTrim(s)
orParts, err := splitORParts(parts)
if err != nil {
return nil, err
}
expandedParts, err := expandWildcardVersion(orParts)
if err != nil {
return nil, err
}
var orFn Range
for _, p := range expandedParts {
var andFn Range
for _, ap := range p {
opStr, vStr, err := splitComparatorVersion(ap)
if err != nil {
return nil, err
}
vr, err := buildVersionRange(opStr, vStr)
if err != nil {
return nil, fmt.Errorf("Could not parse Range %q: %s", ap, err)
}
rf := vr.rangeFunc()
// Set function
if andFn == nil {
andFn = rf
} else { // Combine with existing function
andFn = andFn.AND(rf)
}
}
if orFn == nil {
orFn = andFn
} else {
orFn = orFn.OR(andFn)
}
}
return orFn, nil
}
// splitORParts splits the already cleaned parts by '||'.
// Checks for invalid positions of the operator and returns an
// error if found.
func splitORParts(parts []string) ([][]string, error) {
var ORparts [][]string
last := 0
for i, p := range parts {
if p == "||" {
if i == 0 {
return nil, fmt.Errorf("First element in range is '||'")
}
ORparts = append(ORparts, parts[last:i])
last = i + 1
}
}
if last == len(parts) {
return nil, fmt.Errorf("Last element in range is '||'")
}
ORparts = append(ORparts, parts[last:])
return ORparts, nil
}
// buildVersionRange takes a slice of 2: operator and version
// and builds a versionRange, otherwise an error.
func buildVersionRange(opStr, vStr string) (*versionRange, error) {
c := parseComparator(opStr)
if c == nil {
return nil, fmt.Errorf("Could not parse comparator %q in %q", opStr, strings.Join([]string{opStr, vStr}, ""))
}
v, err := Parse(vStr)
if err != nil {
return nil, fmt.Errorf("Could not parse version %q in %q: %s", vStr, strings.Join([]string{opStr, vStr}, ""), err)
}
return &versionRange{
v: v,
c: c,
}, nil
}
// inArray checks if a byte is contained in an array of bytes
func inArray(s byte, list []byte) bool {
for _, el := range list {
if el == s {
return true
}
}
return false
}
// splitAndTrim splits a range string by spaces and cleans whitespaces
func splitAndTrim(s string) (result []string) {
last := 0
var lastChar byte
excludeFromSplit := []byte{'>', '<', '='}
for i := 0; i < len(s); i++ {
if s[i] == ' ' && !inArray(lastChar, excludeFromSplit) {
if last < i-1 {
result = append(result, s[last:i])
}
last = i + 1
} else if s[i] != ' ' {
lastChar = s[i]
}
}
if last < len(s)-1 {
result = append(result, s[last:])
}
for i, v := range result {
result[i] = strings.Replace(v, " ", "", -1)
}
// parts := strings.Split(s, " ")
// for _, x := range parts {
// if s := strings.TrimSpace(x); len(s) != 0 {
// result = append(result, s)
// }
// }
return
}
// splitComparatorVersion splits the comparator from the version.
// Input must be free of leading or trailing spaces.
func splitComparatorVersion(s string) (string, string, error) {
i := strings.IndexFunc(s, unicode.IsDigit)
if i == -1 {
return "", "", fmt.Errorf("Could not get version from string: %q", s)
}
return strings.TrimSpace(s[0:i]), s[i:], nil
}
// getWildcardType will return the type of wildcard that the
// passed version contains
func getWildcardType(vStr string) wildcardType {
parts := strings.Split(vStr, ".")
nparts := len(parts)
wildcard := parts[nparts-1]
possibleWildcardType := wildcardTypefromInt(nparts)
if wildcard == "x" {
return possibleWildcardType
}
return noneWildcard
}
// createVersionFromWildcard will convert a wildcard version
// into a regular version, replacing 'x's with '0's, handling
// special cases like '1.x.x' and '1.x'
func createVersionFromWildcard(vStr string) string {
// handle 1.x.x
vStr2 := strings.Replace(vStr, ".x.x", ".x", 1)
vStr2 = strings.Replace(vStr2, ".x", ".0", 1)
parts := strings.Split(vStr2, ".")
// handle 1.x
if len(parts) == 2 {
return vStr2 + ".0"
}
return vStr2
}
// incrementMajorVersion will increment the major version
// of the passed version
func incrementMajorVersion(vStr string) (string, error) {
parts := strings.Split(vStr, ".")
i, err := strconv.Atoi(parts[0])
if err != nil {
return "", err
}
parts[0] = strconv.Itoa(i + 1)
return strings.Join(parts, "."), nil
}
// incrementMajorVersion will increment the minor version
// of the passed version
func incrementMinorVersion(vStr string) (string, error) {
parts := strings.Split(vStr, ".")
i, err := strconv.Atoi(parts[1])
if err != nil {
return "", err
}
parts[1] = strconv.Itoa(i + 1)
return strings.Join(parts, "."), nil
}
// expandWildcardVersion will expand wildcards inside versions
// following these rules:
//
// * when dealing with patch wildcards:
// >= 1.2.x will become >= 1.2.0
// <= 1.2.x will become < 1.3.0
// > 1.2.x will become >= 1.3.0
// < 1.2.x will become < 1.2.0
// != 1.2.x will become < 1.2.0 >= 1.3.0
//
// * when dealing with minor wildcards:
// >= 1.x will become >= 1.0.0
// <= 1.x will become < 2.0.0
// > 1.x will become >= 2.0.0
// < 1.0 will become < 1.0.0
// != 1.x will become < 1.0.0 >= 2.0.0
//
// * when dealing with wildcards without
// version operator:
// 1.2.x will become >= 1.2.0 < 1.3.0
// 1.x will become >= 1.0.0 < 2.0.0
func expandWildcardVersion(parts [][]string) ([][]string, error) {
var expandedParts [][]string
for _, p := range parts {
var newParts []string
for _, ap := range p {
if strings.Contains(ap, "x") {
opStr, vStr, err := splitComparatorVersion(ap)
if err != nil {
return nil, err
}
versionWildcardType := getWildcardType(vStr)
flatVersion := createVersionFromWildcard(vStr)
var resultOperator string
var shouldIncrementVersion bool
switch opStr {
case ">":
resultOperator = ">="
shouldIncrementVersion = true
case ">=":
resultOperator = ">="
case "<":
resultOperator = "<"
case "<=":
resultOperator = "<"
shouldIncrementVersion = true
case "", "=", "==":
newParts = append(newParts, ">="+flatVersion)
resultOperator = "<"
shouldIncrementVersion = true
case "!=", "!":
newParts = append(newParts, "<"+flatVersion)
resultOperator = ">="
shouldIncrementVersion = true
}
var resultVersion string
if shouldIncrementVersion {
switch versionWildcardType {
case patchWildcard:
resultVersion, _ = incrementMinorVersion(flatVersion)
case minorWildcard:
resultVersion, _ = incrementMajorVersion(flatVersion)
}
} else {
resultVersion = flatVersion
}
ap = resultOperator + resultVersion
}
newParts = append(newParts, ap)
}
expandedParts = append(expandedParts, newParts)
}
return expandedParts, nil
}
func parseComparator(s string) comparator {
switch s {
case "==":
fallthrough
case "":
fallthrough
case "=":
return compEQ
case ">":
return compGT
case ">=":
return compGE
case "<":
return compLT
case "<=":
return compLE
case "!":
fallthrough
case "!=":
return compNE
}
return nil
}
// MustParseRange is like ParseRange but panics if the range cannot be parsed.
func MustParseRange(s string) Range {
r, err := ParseRange(s)
if err != nil {
panic(`semver: ParseRange(` + s + `): ` + err.Error())
}
return r
}

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vendor/github.com/blang/semver/v4/semver.go generated vendored Normal file
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package semver
import (
"errors"
"fmt"
"strconv"
"strings"
)
const (
numbers string = "0123456789"
alphas = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-"
alphanum = alphas + numbers
)
// SpecVersion is the latest fully supported spec version of semver
var SpecVersion = Version{
Major: 2,
Minor: 0,
Patch: 0,
}
// Version represents a semver compatible version
type Version struct {
Major uint64
Minor uint64
Patch uint64
Pre []PRVersion
Build []string //No Precedence
}
// Version to string
func (v Version) String() string {
b := make([]byte, 0, 5)
b = strconv.AppendUint(b, v.Major, 10)
b = append(b, '.')
b = strconv.AppendUint(b, v.Minor, 10)
b = append(b, '.')
b = strconv.AppendUint(b, v.Patch, 10)
if len(v.Pre) > 0 {
b = append(b, '-')
b = append(b, v.Pre[0].String()...)
for _, pre := range v.Pre[1:] {
b = append(b, '.')
b = append(b, pre.String()...)
}
}
if len(v.Build) > 0 {
b = append(b, '+')
b = append(b, v.Build[0]...)
for _, build := range v.Build[1:] {
b = append(b, '.')
b = append(b, build...)
}
}
return string(b)
}
// FinalizeVersion discards prerelease and build number and only returns
// major, minor and patch number.
func (v Version) FinalizeVersion() string {
b := make([]byte, 0, 5)
b = strconv.AppendUint(b, v.Major, 10)
b = append(b, '.')
b = strconv.AppendUint(b, v.Minor, 10)
b = append(b, '.')
b = strconv.AppendUint(b, v.Patch, 10)
return string(b)
}
// Equals checks if v is equal to o.
func (v Version) Equals(o Version) bool {
return (v.Compare(o) == 0)
}
// EQ checks if v is equal to o.
func (v Version) EQ(o Version) bool {
return (v.Compare(o) == 0)
}
// NE checks if v is not equal to o.
func (v Version) NE(o Version) bool {
return (v.Compare(o) != 0)
}
// GT checks if v is greater than o.
func (v Version) GT(o Version) bool {
return (v.Compare(o) == 1)
}
// GTE checks if v is greater than or equal to o.
func (v Version) GTE(o Version) bool {
return (v.Compare(o) >= 0)
}
// GE checks if v is greater than or equal to o.
func (v Version) GE(o Version) bool {
return (v.Compare(o) >= 0)
}
// LT checks if v is less than o.
func (v Version) LT(o Version) bool {
return (v.Compare(o) == -1)
}
// LTE checks if v is less than or equal to o.
func (v Version) LTE(o Version) bool {
return (v.Compare(o) <= 0)
}
// LE checks if v is less than or equal to o.
func (v Version) LE(o Version) bool {
return (v.Compare(o) <= 0)
}
// Compare compares Versions v to o:
// -1 == v is less than o
// 0 == v is equal to o
// 1 == v is greater than o
func (v Version) Compare(o Version) int {
if v.Major != o.Major {
if v.Major > o.Major {
return 1
}
return -1
}
if v.Minor != o.Minor {
if v.Minor > o.Minor {
return 1
}
return -1
}
if v.Patch != o.Patch {
if v.Patch > o.Patch {
return 1
}
return -1
}
// Quick comparison if a version has no prerelease versions
if len(v.Pre) == 0 && len(o.Pre) == 0 {
return 0
} else if len(v.Pre) == 0 && len(o.Pre) > 0 {
return 1
} else if len(v.Pre) > 0 && len(o.Pre) == 0 {
return -1
}
i := 0
for ; i < len(v.Pre) && i < len(o.Pre); i++ {
if comp := v.Pre[i].Compare(o.Pre[i]); comp == 0 {
continue
} else if comp == 1 {
return 1
} else {
return -1
}
}
// If all pr versions are the equal but one has further prversion, this one greater
if i == len(v.Pre) && i == len(o.Pre) {
return 0
} else if i == len(v.Pre) && i < len(o.Pre) {
return -1
} else {
return 1
}
}
// IncrementPatch increments the patch version
func (v *Version) IncrementPatch() error {
v.Patch++
return nil
}
// IncrementMinor increments the minor version
func (v *Version) IncrementMinor() error {
v.Minor++
v.Patch = 0
return nil
}
// IncrementMajor increments the major version
func (v *Version) IncrementMajor() error {
v.Major++
v.Minor = 0
v.Patch = 0
return nil
}
// Validate validates v and returns error in case
func (v Version) Validate() error {
// Major, Minor, Patch already validated using uint64
for _, pre := range v.Pre {
if !pre.IsNum { //Numeric prerelease versions already uint64
if len(pre.VersionStr) == 0 {
return fmt.Errorf("Prerelease can not be empty %q", pre.VersionStr)
}
if !containsOnly(pre.VersionStr, alphanum) {
return fmt.Errorf("Invalid character(s) found in prerelease %q", pre.VersionStr)
}
}
}
for _, build := range v.Build {
if len(build) == 0 {
return fmt.Errorf("Build meta data can not be empty %q", build)
}
if !containsOnly(build, alphanum) {
return fmt.Errorf("Invalid character(s) found in build meta data %q", build)
}
}
return nil
}
// New is an alias for Parse and returns a pointer, parses version string and returns a validated Version or error
func New(s string) (*Version, error) {
v, err := Parse(s)
vp := &v
return vp, err
}
// Make is an alias for Parse, parses version string and returns a validated Version or error
func Make(s string) (Version, error) {
return Parse(s)
}
// ParseTolerant allows for certain version specifications that do not strictly adhere to semver
// specs to be parsed by this library. It does so by normalizing versions before passing them to
// Parse(). It currently trims spaces, removes a "v" prefix, adds a 0 patch number to versions
// with only major and minor components specified, and removes leading 0s.
func ParseTolerant(s string) (Version, error) {
s = strings.TrimSpace(s)
s = strings.TrimPrefix(s, "v")
// Split into major.minor.(patch+pr+meta)
parts := strings.SplitN(s, ".", 3)
// Remove leading zeros.
for i, p := range parts {
if len(p) > 1 {
p = strings.TrimLeft(p, "0")
if len(p) == 0 || !strings.ContainsAny(p[0:1], "0123456789") {
p = "0" + p
}
parts[i] = p
}
}
// Fill up shortened versions.
if len(parts) < 3 {
if strings.ContainsAny(parts[len(parts)-1], "+-") {
return Version{}, errors.New("Short version cannot contain PreRelease/Build meta data")
}
for len(parts) < 3 {
parts = append(parts, "0")
}
}
s = strings.Join(parts, ".")
return Parse(s)
}
// Parse parses version string and returns a validated Version or error
func Parse(s string) (Version, error) {
if len(s) == 0 {
return Version{}, errors.New("Version string empty")
}
// Split into major.minor.(patch+pr+meta)
parts := strings.SplitN(s, ".", 3)
if len(parts) != 3 {
return Version{}, errors.New("No Major.Minor.Patch elements found")
}
// Major
if !containsOnly(parts[0], numbers) {
return Version{}, fmt.Errorf("Invalid character(s) found in major number %q", parts[0])
}
if hasLeadingZeroes(parts[0]) {
return Version{}, fmt.Errorf("Major number must not contain leading zeroes %q", parts[0])
}
major, err := strconv.ParseUint(parts[0], 10, 64)
if err != nil {
return Version{}, err
}
// Minor
if !containsOnly(parts[1], numbers) {
return Version{}, fmt.Errorf("Invalid character(s) found in minor number %q", parts[1])
}
if hasLeadingZeroes(parts[1]) {
return Version{}, fmt.Errorf("Minor number must not contain leading zeroes %q", parts[1])
}
minor, err := strconv.ParseUint(parts[1], 10, 64)
if err != nil {
return Version{}, err
}
v := Version{}
v.Major = major
v.Minor = minor
var build, prerelease []string
patchStr := parts[2]
if buildIndex := strings.IndexRune(patchStr, '+'); buildIndex != -1 {
build = strings.Split(patchStr[buildIndex+1:], ".")
patchStr = patchStr[:buildIndex]
}
if preIndex := strings.IndexRune(patchStr, '-'); preIndex != -1 {
prerelease = strings.Split(patchStr[preIndex+1:], ".")
patchStr = patchStr[:preIndex]
}
if !containsOnly(patchStr, numbers) {
return Version{}, fmt.Errorf("Invalid character(s) found in patch number %q", patchStr)
}
if hasLeadingZeroes(patchStr) {
return Version{}, fmt.Errorf("Patch number must not contain leading zeroes %q", patchStr)
}
patch, err := strconv.ParseUint(patchStr, 10, 64)
if err != nil {
return Version{}, err
}
v.Patch = patch
// Prerelease
for _, prstr := range prerelease {
parsedPR, err := NewPRVersion(prstr)
if err != nil {
return Version{}, err
}
v.Pre = append(v.Pre, parsedPR)
}
// Build meta data
for _, str := range build {
if len(str) == 0 {
return Version{}, errors.New("Build meta data is empty")
}
if !containsOnly(str, alphanum) {
return Version{}, fmt.Errorf("Invalid character(s) found in build meta data %q", str)
}
v.Build = append(v.Build, str)
}
return v, nil
}
// MustParse is like Parse but panics if the version cannot be parsed.
func MustParse(s string) Version {
v, err := Parse(s)
if err != nil {
panic(`semver: Parse(` + s + `): ` + err.Error())
}
return v
}
// PRVersion represents a PreRelease Version
type PRVersion struct {
VersionStr string
VersionNum uint64
IsNum bool
}
// NewPRVersion creates a new valid prerelease version
func NewPRVersion(s string) (PRVersion, error) {
if len(s) == 0 {
return PRVersion{}, errors.New("Prerelease is empty")
}
v := PRVersion{}
if containsOnly(s, numbers) {
if hasLeadingZeroes(s) {
return PRVersion{}, fmt.Errorf("Numeric PreRelease version must not contain leading zeroes %q", s)
}
num, err := strconv.ParseUint(s, 10, 64)
// Might never be hit, but just in case
if err != nil {
return PRVersion{}, err
}
v.VersionNum = num
v.IsNum = true
} else if containsOnly(s, alphanum) {
v.VersionStr = s
v.IsNum = false
} else {
return PRVersion{}, fmt.Errorf("Invalid character(s) found in prerelease %q", s)
}
return v, nil
}
// IsNumeric checks if prerelease-version is numeric
func (v PRVersion) IsNumeric() bool {
return v.IsNum
}
// Compare compares two PreRelease Versions v and o:
// -1 == v is less than o
// 0 == v is equal to o
// 1 == v is greater than o
func (v PRVersion) Compare(o PRVersion) int {
if v.IsNum && !o.IsNum {
return -1
} else if !v.IsNum && o.IsNum {
return 1
} else if v.IsNum && o.IsNum {
if v.VersionNum == o.VersionNum {
return 0
} else if v.VersionNum > o.VersionNum {
return 1
} else {
return -1
}
} else { // both are Alphas
if v.VersionStr == o.VersionStr {
return 0
} else if v.VersionStr > o.VersionStr {
return 1
} else {
return -1
}
}
}
// PreRelease version to string
func (v PRVersion) String() string {
if v.IsNum {
return strconv.FormatUint(v.VersionNum, 10)
}
return v.VersionStr
}
func containsOnly(s string, set string) bool {
return strings.IndexFunc(s, func(r rune) bool {
return !strings.ContainsRune(set, r)
}) == -1
}
func hasLeadingZeroes(s string) bool {
return len(s) > 1 && s[0] == '0'
}
// NewBuildVersion creates a new valid build version
func NewBuildVersion(s string) (string, error) {
if len(s) == 0 {
return "", errors.New("Buildversion is empty")
}
if !containsOnly(s, alphanum) {
return "", fmt.Errorf("Invalid character(s) found in build meta data %q", s)
}
return s, nil
}
// FinalizeVersion returns the major, minor and patch number only and discards
// prerelease and build number.
func FinalizeVersion(s string) (string, error) {
v, err := Parse(s)
if err != nil {
return "", err
}
v.Pre = nil
v.Build = nil
finalVer := v.String()
return finalVer, nil
}

28
vendor/github.com/blang/semver/v4/sort.go generated vendored Normal file
View File

@ -0,0 +1,28 @@
package semver
import (
"sort"
)
// Versions represents multiple versions.
type Versions []Version
// Len returns length of version collection
func (s Versions) Len() int {
return len(s)
}
// Swap swaps two versions inside the collection by its indices
func (s Versions) Swap(i, j int) {
s[i], s[j] = s[j], s[i]
}
// Less checks if version at index i is less than version at index j
func (s Versions) Less(i, j int) bool {
return s[i].LT(s[j])
}
// Sort sorts a slice of versions
func Sort(versions []Version) {
sort.Sort(Versions(versions))
}

30
vendor/github.com/blang/semver/v4/sql.go generated vendored Normal file
View File

@ -0,0 +1,30 @@
package semver
import (
"database/sql/driver"
"fmt"
)
// Scan implements the database/sql.Scanner interface.
func (v *Version) Scan(src interface{}) (err error) {
var str string
switch src := src.(type) {
case string:
str = src
case []byte:
str = string(src)
default:
return fmt.Errorf("version.Scan: cannot convert %T to string", src)
}
if t, err := Parse(str); err == nil {
*v = t
}
return
}
// Value implements the database/sql/driver.Valuer interface.
func (v Version) Value() (driver.Value, error) {
return v.String(), nil
}

View File

@ -22,8 +22,9 @@ import (
"github.com/golang/protobuf/proto"
"github.com/golang/protobuf/ptypes/any"
extensions "github.com/googleapis/gnostic/extensions"
yaml "gopkg.in/yaml.v3"
extensions "github.com/google/gnostic/extensions"
)
// ExtensionHandler describes a binary that is called by the compiler to handle specification extensions.

View File

@ -20,8 +20,9 @@ import (
"sort"
"strconv"
"github.com/googleapis/gnostic/jsonschema"
"gopkg.in/yaml.v3"
"github.com/google/gnostic/jsonschema"
)
// compiler helper functions, usually called from generated code

View File

@ -15,7 +15,7 @@
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.26.0
// protoc v3.15.5
// protoc v3.18.1
// source: extensions/extension.proto
package gnostic_extension_v1

View File

@ -18,10 +18,12 @@ package openapi_v2
import (
"fmt"
"github.com/googleapis/gnostic/compiler"
"gopkg.in/yaml.v3"
"regexp"
"strings"
"gopkg.in/yaml.v3"
"github.com/google/gnostic/compiler"
)
// Version returns the package name (and OpenAPI version).

View File

@ -17,7 +17,7 @@
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.26.0
// protoc v3.15.5
// protoc v3.18.1
// source: openapiv2/OpenAPIv2.proto
package openapi_v2

View File

@ -15,8 +15,9 @@
package openapi_v2
import (
"github.com/googleapis/gnostic/compiler"
"gopkg.in/yaml.v3"
"github.com/google/gnostic/compiler"
)
// ParseDocument reads an OpenAPI v2 description from a YAML/JSON representation.

View File

@ -18,10 +18,12 @@ package openapi_v3
import (
"fmt"
"github.com/googleapis/gnostic/compiler"
"gopkg.in/yaml.v3"
"regexp"
"strings"
"gopkg.in/yaml.v3"
"github.com/google/gnostic/compiler"
)
// Version returns the package name (and OpenAPI version).
@ -3431,6 +3433,24 @@ func NewReference(in *yaml.Node, context *compiler.Context) (*Reference, error)
errors = append(errors, compiler.NewError(context, message))
}
}
// string summary = 2;
v2 := compiler.MapValueForKey(m, "summary")
if v2 != nil {
x.Summary, ok = compiler.StringForScalarNode(v2)
if !ok {
message := fmt.Sprintf("has unexpected value for summary: %s", compiler.Display(v2))
errors = append(errors, compiler.NewError(context, message))
}
}
// string description = 3;
v3 := compiler.MapValueForKey(m, "description")
if v3 != nil {
x.Description, ok = compiler.StringForScalarNode(v3)
if !ok {
message := fmt.Sprintf("has unexpected value for description: %s", compiler.Display(v3))
errors = append(errors, compiler.NewError(context, message))
}
}
}
return x, compiler.NewErrorGroupOrNil(errors)
}
@ -6187,6 +6207,13 @@ func (m *Reference) ResolveReferences(root string) (*yaml.Node, error) {
if err != nil {
return nil, err
}
if info != nil {
replacement, err := NewReference(info, nil)
if err == nil {
*m = *replacement
return m.ResolveReferences(root)
}
}
return info, nil
}
return nil, compiler.NewErrorGroupOrNil(errors)
@ -7977,6 +8004,14 @@ func (m *Reference) ToRawInfo() *yaml.Node {
// always include this required field.
info.Content = append(info.Content, compiler.NewScalarNodeForString("$ref"))
info.Content = append(info.Content, compiler.NewScalarNodeForString(m.XRef))
if m.Summary != "" {
info.Content = append(info.Content, compiler.NewScalarNodeForString("summary"))
info.Content = append(info.Content, compiler.NewScalarNodeForString(m.Summary))
}
if m.Description != "" {
info.Content = append(info.Content, compiler.NewScalarNodeForString("description"))
info.Content = append(info.Content, compiler.NewScalarNodeForString(m.Description))
}
return info
}

View File

@ -17,7 +17,7 @@
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.26.0
// protoc v3.15.5
// protoc v3.18.1
// source: openapiv3/OpenAPIv3.proto
package openapi_v3
@ -3995,7 +3995,9 @@ type Reference struct {
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
XRef string `protobuf:"bytes,1,opt,name=_ref,json=Ref,proto3" json:"_ref,omitempty"`
XRef string `protobuf:"bytes,1,opt,name=_ref,json=Ref,proto3" json:"_ref,omitempty"`
Summary string `protobuf:"bytes,2,opt,name=summary,proto3" json:"summary,omitempty"`
Description string `protobuf:"bytes,3,opt,name=description,proto3" json:"description,omitempty"`
}
func (x *Reference) Reset() {
@ -4037,6 +4039,20 @@ func (x *Reference) GetXRef() string {
return ""
}
func (x *Reference) GetSummary() string {
if x != nil {
return x.Summary
}
return ""
}
func (x *Reference) GetDescription() string {
if x != nil {
return x.Description
}
return ""
}
type RequestBodiesOrReferences struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
@ -6435,317 +6451,321 @@ var file_openapiv3_OpenAPIv3_proto_rawDesc = []byte{
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0x65, 0x6e, 0x61, 0x70, 0x69, 0x5f, 0x76, 0x33, 0xa2, 0x02, 0x03, 0x4f, 0x41, 0x53, 0x62, 0x06,
0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
}
var (

View File

@ -485,6 +485,8 @@ message Properties {
// A simple object to allow referencing other components in the specification, internally and externally. The Reference Object is defined by JSON Reference and follows the same structure, behavior and rules. For this specification, reference resolution is accomplished as defined by the JSON Reference specification and not by the JSON Schema specification.
message Reference {
string _ref = 1;
string summary = 2;
string description = 3;
}
message RequestBodiesOrReferences {

View File

@ -15,8 +15,9 @@
package openapi_v3
import (
"github.com/googleapis/gnostic/compiler"
"gopkg.in/yaml.v3"
"github.com/google/gnostic/compiler"
)
// ParseDocument reads an OpenAPI v3 description from a YAML/JSON representation.

View File

@ -704,6 +704,12 @@
"properties": {
"$ref": {
"type": "string"
},
"summary": {
"type": "string"
},
"description": {
"type": "string"
}
}
},

View File

@ -88,7 +88,7 @@
},
"summary": {
"type": "string"
},
}
}
},
"contact": {
@ -707,6 +707,12 @@
"properties": {
"$ref": {
"type": "string"
},
"summary": {
"type": "string"
},
"description": {
"type": "string"
}
}
},

View File

@ -1 +1 @@
See [![go-doc](https://godoc.org/github.com/prometheus/client_golang/prometheus?status.svg)](https://godoc.org/github.com/prometheus/client_golang/prometheus).
See [![Go Reference](https://pkg.go.dev/badge/github.com/prometheus/client_golang/prometheus.svg)](https://pkg.go.dev/github.com/prometheus/client_golang/prometheus).

View File

@ -0,0 +1,38 @@
// Copyright 2021 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 prometheus
import "runtime/debug"
// NewBuildInfoCollector is the obsolete version of collectors.NewBuildInfoCollector.
// See there for documentation.
//
// Deprecated: Use collectors.NewBuildInfoCollector instead.
func NewBuildInfoCollector() Collector {
path, version, sum := "unknown", "unknown", "unknown"
if bi, ok := debug.ReadBuildInfo(); ok {
path = bi.Main.Path
version = bi.Main.Version
sum = bi.Main.Sum
}
c := &selfCollector{MustNewConstMetric(
NewDesc(
"go_build_info",
"Build information about the main Go module.",
nil, Labels{"path": path, "version": version, "checksum": sum},
),
GaugeValue, 1)}
c.init(c.self)
return c
}

View File

@ -118,3 +118,11 @@ func (c *selfCollector) Describe(ch chan<- *Desc) {
func (c *selfCollector) Collect(ch chan<- Metric) {
ch <- c.self
}
// collectorMetric is a metric that is also a collector.
// Because of selfCollector, most (if not all) Metrics in
// this package are also collectors.
type collectorMetric interface {
Metric
Collector
}

View File

@ -11,6 +11,7 @@
// See the License for the specific language governing permissions and
// limitations under the License.
//go:build go1.15
// +build go1.15
package collectors

View File

@ -11,6 +11,7 @@
// See the License for the specific language governing permissions and
// limitations under the License.
//go:build !go1.15
// +build !go1.15
package collectors

View File

@ -133,10 +133,14 @@ func (c *counter) Inc() {
atomic.AddUint64(&c.valInt, 1)
}
func (c *counter) Write(out *dto.Metric) error {
func (c *counter) get() float64 {
fval := math.Float64frombits(atomic.LoadUint64(&c.valBits))
ival := atomic.LoadUint64(&c.valInt)
val := fval + float64(ival)
return fval + float64(ival)
}
func (c *counter) Write(out *dto.Metric) error {
val := c.get()
var exemplar *dto.Exemplar
if e := c.exemplar.Load(); e != nil {

View File

@ -16,32 +16,209 @@ package prometheus
import (
"runtime"
"runtime/debug"
"sync"
"time"
)
type goCollector struct {
func goRuntimeMemStats() memStatsMetrics {
return memStatsMetrics{
{
desc: NewDesc(
memstatNamespace("alloc_bytes"),
"Number of bytes allocated and still in use.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.Alloc) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("alloc_bytes_total"),
"Total number of bytes allocated, even if freed.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.TotalAlloc) },
valType: CounterValue,
}, {
desc: NewDesc(
memstatNamespace("sys_bytes"),
"Number of bytes obtained from system.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.Sys) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("lookups_total"),
"Total number of pointer lookups.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.Lookups) },
valType: CounterValue,
}, {
desc: NewDesc(
memstatNamespace("mallocs_total"),
"Total number of mallocs.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.Mallocs) },
valType: CounterValue,
}, {
desc: NewDesc(
memstatNamespace("frees_total"),
"Total number of frees.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.Frees) },
valType: CounterValue,
}, {
desc: NewDesc(
memstatNamespace("heap_alloc_bytes"),
"Number of heap bytes allocated and still in use.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.HeapAlloc) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("heap_sys_bytes"),
"Number of heap bytes obtained from system.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.HeapSys) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("heap_idle_bytes"),
"Number of heap bytes waiting to be used.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.HeapIdle) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("heap_inuse_bytes"),
"Number of heap bytes that are in use.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.HeapInuse) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("heap_released_bytes"),
"Number of heap bytes released to OS.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.HeapReleased) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("heap_objects"),
"Number of allocated objects.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.HeapObjects) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("stack_inuse_bytes"),
"Number of bytes in use by the stack allocator.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.StackInuse) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("stack_sys_bytes"),
"Number of bytes obtained from system for stack allocator.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.StackSys) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("mspan_inuse_bytes"),
"Number of bytes in use by mspan structures.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.MSpanInuse) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("mspan_sys_bytes"),
"Number of bytes used for mspan structures obtained from system.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.MSpanSys) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("mcache_inuse_bytes"),
"Number of bytes in use by mcache structures.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.MCacheInuse) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("mcache_sys_bytes"),
"Number of bytes used for mcache structures obtained from system.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.MCacheSys) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("buck_hash_sys_bytes"),
"Number of bytes used by the profiling bucket hash table.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.BuckHashSys) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("gc_sys_bytes"),
"Number of bytes used for garbage collection system metadata.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.GCSys) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("other_sys_bytes"),
"Number of bytes used for other system allocations.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.OtherSys) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("next_gc_bytes"),
"Number of heap bytes when next garbage collection will take place.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.NextGC) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("gc_cpu_fraction"),
"The fraction of this program's available CPU time used by the GC since the program started.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return ms.GCCPUFraction },
valType: GaugeValue,
},
}
}
type baseGoCollector struct {
goroutinesDesc *Desc
threadsDesc *Desc
gcDesc *Desc
gcLastTimeDesc *Desc
goInfoDesc *Desc
// ms... are memstats related.
msLast *runtime.MemStats // Previously collected memstats.
msLastTimestamp time.Time
msMtx sync.Mutex // Protects msLast and msLastTimestamp.
msMetrics memStatsMetrics
msRead func(*runtime.MemStats) // For mocking in tests.
msMaxWait time.Duration // Wait time for fresh memstats.
msMaxAge time.Duration // Maximum allowed age of old memstats.
}
// NewGoCollector is the obsolete version of collectors.NewGoCollector.
// See there for documentation.
//
// Deprecated: Use collectors.NewGoCollector instead.
func NewGoCollector() Collector {
return &goCollector{
func newBaseGoCollector() baseGoCollector {
return baseGoCollector{
goroutinesDesc: NewDesc(
"go_goroutines",
"Number of goroutines that currently exist.",
@ -54,243 +231,28 @@ func NewGoCollector() Collector {
"go_gc_duration_seconds",
"A summary of the pause duration of garbage collection cycles.",
nil, nil),
gcLastTimeDesc: NewDesc(
memstatNamespace("last_gc_time_seconds"),
"Number of seconds since 1970 of last garbage collection.",
nil, nil),
goInfoDesc: NewDesc(
"go_info",
"Information about the Go environment.",
nil, Labels{"version": runtime.Version()}),
msLast: &runtime.MemStats{},
msRead: runtime.ReadMemStats,
msMaxWait: time.Second,
msMaxAge: 5 * time.Minute,
msMetrics: memStatsMetrics{
{
desc: NewDesc(
memstatNamespace("alloc_bytes"),
"Number of bytes allocated and still in use.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.Alloc) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("alloc_bytes_total"),
"Total number of bytes allocated, even if freed.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.TotalAlloc) },
valType: CounterValue,
}, {
desc: NewDesc(
memstatNamespace("sys_bytes"),
"Number of bytes obtained from system.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.Sys) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("lookups_total"),
"Total number of pointer lookups.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.Lookups) },
valType: CounterValue,
}, {
desc: NewDesc(
memstatNamespace("mallocs_total"),
"Total number of mallocs.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.Mallocs) },
valType: CounterValue,
}, {
desc: NewDesc(
memstatNamespace("frees_total"),
"Total number of frees.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.Frees) },
valType: CounterValue,
}, {
desc: NewDesc(
memstatNamespace("heap_alloc_bytes"),
"Number of heap bytes allocated and still in use.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.HeapAlloc) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("heap_sys_bytes"),
"Number of heap bytes obtained from system.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.HeapSys) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("heap_idle_bytes"),
"Number of heap bytes waiting to be used.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.HeapIdle) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("heap_inuse_bytes"),
"Number of heap bytes that are in use.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.HeapInuse) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("heap_released_bytes"),
"Number of heap bytes released to OS.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.HeapReleased) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("heap_objects"),
"Number of allocated objects.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.HeapObjects) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("stack_inuse_bytes"),
"Number of bytes in use by the stack allocator.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.StackInuse) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("stack_sys_bytes"),
"Number of bytes obtained from system for stack allocator.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.StackSys) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("mspan_inuse_bytes"),
"Number of bytes in use by mspan structures.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.MSpanInuse) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("mspan_sys_bytes"),
"Number of bytes used for mspan structures obtained from system.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.MSpanSys) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("mcache_inuse_bytes"),
"Number of bytes in use by mcache structures.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.MCacheInuse) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("mcache_sys_bytes"),
"Number of bytes used for mcache structures obtained from system.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.MCacheSys) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("buck_hash_sys_bytes"),
"Number of bytes used by the profiling bucket hash table.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.BuckHashSys) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("gc_sys_bytes"),
"Number of bytes used for garbage collection system metadata.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.GCSys) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("other_sys_bytes"),
"Number of bytes used for other system allocations.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.OtherSys) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("next_gc_bytes"),
"Number of heap bytes when next garbage collection will take place.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.NextGC) },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("last_gc_time_seconds"),
"Number of seconds since 1970 of last garbage collection.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return float64(ms.LastGC) / 1e9 },
valType: GaugeValue,
}, {
desc: NewDesc(
memstatNamespace("gc_cpu_fraction"),
"The fraction of this program's available CPU time used by the GC since the program started.",
nil, nil,
),
eval: func(ms *runtime.MemStats) float64 { return ms.GCCPUFraction },
valType: GaugeValue,
},
},
}
}
func memstatNamespace(s string) string {
return "go_memstats_" + s
}
// Describe returns all descriptions of the collector.
func (c *goCollector) Describe(ch chan<- *Desc) {
func (c *baseGoCollector) Describe(ch chan<- *Desc) {
ch <- c.goroutinesDesc
ch <- c.threadsDesc
ch <- c.gcDesc
ch <- c.gcLastTimeDesc
ch <- c.goInfoDesc
for _, i := range c.msMetrics {
ch <- i.desc
}
}
// Collect returns the current state of all metrics of the collector.
func (c *goCollector) Collect(ch chan<- Metric) {
var (
ms = &runtime.MemStats{}
done = make(chan struct{})
)
// Start reading memstats first as it might take a while.
go func() {
c.msRead(ms)
c.msMtx.Lock()
c.msLast = ms
c.msLastTimestamp = time.Now()
c.msMtx.Unlock()
close(done)
}()
func (c *baseGoCollector) Collect(ch chan<- Metric) {
ch <- MustNewConstMetric(c.goroutinesDesc, GaugeValue, float64(runtime.NumGoroutine()))
n, _ := runtime.ThreadCreateProfile(nil)
ch <- MustNewConstMetric(c.threadsDesc, GaugeValue, float64(n))
@ -305,63 +267,19 @@ func (c *goCollector) Collect(ch chan<- Metric) {
}
quantiles[0.0] = stats.PauseQuantiles[0].Seconds()
ch <- MustNewConstSummary(c.gcDesc, uint64(stats.NumGC), stats.PauseTotal.Seconds(), quantiles)
ch <- MustNewConstMetric(c.gcLastTimeDesc, GaugeValue, float64(stats.LastGC.UnixNano())/1e9)
ch <- MustNewConstMetric(c.goInfoDesc, GaugeValue, 1)
timer := time.NewTimer(c.msMaxWait)
select {
case <-done: // Our own ReadMemStats succeeded in time. Use it.
timer.Stop() // Important for high collection frequencies to not pile up timers.
c.msCollect(ch, ms)
return
case <-timer.C: // Time out, use last memstats if possible. Continue below.
}
c.msMtx.Lock()
if time.Since(c.msLastTimestamp) < c.msMaxAge {
// Last memstats are recent enough. Collect from them under the lock.
c.msCollect(ch, c.msLast)
c.msMtx.Unlock()
return
}
// If we are here, the last memstats are too old or don't exist. We have
// to wait until our own ReadMemStats finally completes. For that to
// happen, we have to release the lock.
c.msMtx.Unlock()
<-done
c.msCollect(ch, ms)
}
func (c *goCollector) msCollect(ch chan<- Metric, ms *runtime.MemStats) {
for _, i := range c.msMetrics {
ch <- MustNewConstMetric(i.desc, i.valType, i.eval(ms))
}
func memstatNamespace(s string) string {
return "go_memstats_" + s
}
// memStatsMetrics provide description, value, and value type for memstat metrics.
// memStatsMetrics provide description, evaluator, runtime/metrics name, and
// value type for memstat metrics.
type memStatsMetrics []struct {
desc *Desc
eval func(*runtime.MemStats) float64
valType ValueType
}
// NewBuildInfoCollector is the obsolete version of collectors.NewBuildInfoCollector.
// See there for documentation.
//
// Deprecated: Use collectors.NewBuildInfoCollector instead.
func NewBuildInfoCollector() Collector {
path, version, sum := "unknown", "unknown", "unknown"
if bi, ok := debug.ReadBuildInfo(); ok {
path = bi.Main.Path
version = bi.Main.Version
sum = bi.Main.Sum
}
c := &selfCollector{MustNewConstMetric(
NewDesc(
"go_build_info",
"Build information about the main Go module.",
nil, Labels{"path": path, "version": version, "checksum": sum},
),
GaugeValue, 1)}
c.init(c.self)
return c
}

View File

@ -0,0 +1,107 @@
// Copyright 2021 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 !go1.17
// +build !go1.17
package prometheus
import (
"runtime"
"sync"
"time"
)
type goCollector struct {
base baseGoCollector
// ms... are memstats related.
msLast *runtime.MemStats // Previously collected memstats.
msLastTimestamp time.Time
msMtx sync.Mutex // Protects msLast and msLastTimestamp.
msMetrics memStatsMetrics
msRead func(*runtime.MemStats) // For mocking in tests.
msMaxWait time.Duration // Wait time for fresh memstats.
msMaxAge time.Duration // Maximum allowed age of old memstats.
}
// NewGoCollector is the obsolete version of collectors.NewGoCollector.
// See there for documentation.
//
// Deprecated: Use collectors.NewGoCollector instead.
func NewGoCollector() Collector {
return &goCollector{
base: newBaseGoCollector(),
msLast: &runtime.MemStats{},
msRead: runtime.ReadMemStats,
msMaxWait: time.Second,
msMaxAge: 5 * time.Minute,
msMetrics: goRuntimeMemStats(),
}
}
// Describe returns all descriptions of the collector.
func (c *goCollector) Describe(ch chan<- *Desc) {
c.base.Describe(ch)
for _, i := range c.msMetrics {
ch <- i.desc
}
}
// Collect returns the current state of all metrics of the collector.
func (c *goCollector) Collect(ch chan<- Metric) {
var (
ms = &runtime.MemStats{}
done = make(chan struct{})
)
// Start reading memstats first as it might take a while.
go func() {
c.msRead(ms)
c.msMtx.Lock()
c.msLast = ms
c.msLastTimestamp = time.Now()
c.msMtx.Unlock()
close(done)
}()
// Collect base non-memory metrics.
c.base.Collect(ch)
timer := time.NewTimer(c.msMaxWait)
select {
case <-done: // Our own ReadMemStats succeeded in time. Use it.
timer.Stop() // Important for high collection frequencies to not pile up timers.
c.msCollect(ch, ms)
return
case <-timer.C: // Time out, use last memstats if possible. Continue below.
}
c.msMtx.Lock()
if time.Since(c.msLastTimestamp) < c.msMaxAge {
// Last memstats are recent enough. Collect from them under the lock.
c.msCollect(ch, c.msLast)
c.msMtx.Unlock()
return
}
// If we are here, the last memstats are too old or don't exist. We have
// to wait until our own ReadMemStats finally completes. For that to
// happen, we have to release the lock.
c.msMtx.Unlock()
<-done
c.msCollect(ch, ms)
}
func (c *goCollector) msCollect(ch chan<- Metric, ms *runtime.MemStats) {
for _, i := range c.msMetrics {
ch <- MustNewConstMetric(i.desc, i.valType, i.eval(ms))
}
}

View File

@ -0,0 +1,408 @@
// Copyright 2021 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 go1.17
// +build go1.17
package prometheus
import (
"math"
"runtime"
"runtime/metrics"
"strings"
"sync"
//nolint:staticcheck // Ignore SA1019. Need to keep deprecated package for compatibility.
"github.com/golang/protobuf/proto"
"github.com/prometheus/client_golang/prometheus/internal"
dto "github.com/prometheus/client_model/go"
)
type goCollector struct {
base baseGoCollector
// mu protects updates to all fields ensuring a consistent
// snapshot is always produced by Collect.
mu sync.Mutex
// rm... fields all pertain to the runtime/metrics package.
rmSampleBuf []metrics.Sample
rmSampleMap map[string]*metrics.Sample
rmMetrics []collectorMetric
// With Go 1.17, the runtime/metrics package was introduced.
// From that point on, metric names produced by the runtime/metrics
// package could be generated from runtime/metrics names. However,
// these differ from the old names for the same values.
//
// This field exist to export the same values under the old names
// as well.
msMetrics memStatsMetrics
}
// NewGoCollector is the obsolete version of collectors.NewGoCollector.
// See there for documentation.
//
// Deprecated: Use collectors.NewGoCollector instead.
func NewGoCollector() Collector {
descriptions := metrics.All()
// Collect all histogram samples so that we can get their buckets.
// The API guarantees that the buckets are always fixed for the lifetime
// of the process.
var histograms []metrics.Sample
for _, d := range descriptions {
if d.Kind == metrics.KindFloat64Histogram {
histograms = append(histograms, metrics.Sample{Name: d.Name})
}
}
metrics.Read(histograms)
bucketsMap := make(map[string][]float64)
for i := range histograms {
bucketsMap[histograms[i].Name] = histograms[i].Value.Float64Histogram().Buckets
}
// Generate a Desc and ValueType for each runtime/metrics metric.
metricSet := make([]collectorMetric, 0, len(descriptions))
sampleBuf := make([]metrics.Sample, 0, len(descriptions))
sampleMap := make(map[string]*metrics.Sample, len(descriptions))
for i := range descriptions {
d := &descriptions[i]
namespace, subsystem, name, ok := internal.RuntimeMetricsToProm(d)
if !ok {
// Just ignore this metric; we can't do anything with it here.
// If a user decides to use the latest version of Go, we don't want
// to fail here. This condition is tested elsewhere.
continue
}
// Set up sample buffer for reading, and a map
// for quick lookup of sample values.
sampleBuf = append(sampleBuf, metrics.Sample{Name: d.Name})
sampleMap[d.Name] = &sampleBuf[len(sampleBuf)-1]
var m collectorMetric
if d.Kind == metrics.KindFloat64Histogram {
_, hasSum := rmExactSumMap[d.Name]
unit := d.Name[strings.IndexRune(d.Name, ':')+1:]
m = newBatchHistogram(
NewDesc(
BuildFQName(namespace, subsystem, name),
d.Description,
nil,
nil,
),
internal.RuntimeMetricsBucketsForUnit(bucketsMap[d.Name], unit),
hasSum,
)
} else if d.Cumulative {
m = NewCounter(CounterOpts{
Namespace: namespace,
Subsystem: subsystem,
Name: name,
Help: d.Description,
})
} else {
m = NewGauge(GaugeOpts{
Namespace: namespace,
Subsystem: subsystem,
Name: name,
Help: d.Description,
})
}
metricSet = append(metricSet, m)
}
return &goCollector{
base: newBaseGoCollector(),
rmSampleBuf: sampleBuf,
rmSampleMap: sampleMap,
rmMetrics: metricSet,
msMetrics: goRuntimeMemStats(),
}
}
// Describe returns all descriptions of the collector.
func (c *goCollector) Describe(ch chan<- *Desc) {
c.base.Describe(ch)
for _, i := range c.msMetrics {
ch <- i.desc
}
for _, m := range c.rmMetrics {
ch <- m.Desc()
}
}
// Collect returns the current state of all metrics of the collector.
func (c *goCollector) Collect(ch chan<- Metric) {
// Collect base non-memory metrics.
c.base.Collect(ch)
// Collect must be thread-safe, so prevent concurrent use of
// rmSampleBuf. Just read into rmSampleBuf but write all the data
// we get into our Metrics or MemStats.
//
// This lock also ensures that the Metrics we send out are all from
// the same updates, ensuring their mutual consistency insofar as
// is guaranteed by the runtime/metrics package.
//
// N.B. This locking is heavy-handed, but Collect is expected to be called
// relatively infrequently. Also the core operation here, metrics.Read,
// is fast (O(tens of microseconds)) so contention should certainly be
// low, though channel operations and any allocations may add to that.
c.mu.Lock()
defer c.mu.Unlock()
// Populate runtime/metrics sample buffer.
metrics.Read(c.rmSampleBuf)
// Update all our metrics from rmSampleBuf.
for i, sample := range c.rmSampleBuf {
// N.B. switch on concrete type because it's significantly more efficient
// than checking for the Counter and Gauge interface implementations. In
// this case, we control all the types here.
switch m := c.rmMetrics[i].(type) {
case *counter:
// Guard against decreases. This should never happen, but a failure
// to do so will result in a panic, which is a harsh consequence for
// a metrics collection bug.
v0, v1 := m.get(), unwrapScalarRMValue(sample.Value)
if v1 > v0 {
m.Add(unwrapScalarRMValue(sample.Value) - m.get())
}
m.Collect(ch)
case *gauge:
m.Set(unwrapScalarRMValue(sample.Value))
m.Collect(ch)
case *batchHistogram:
m.update(sample.Value.Float64Histogram(), c.exactSumFor(sample.Name))
m.Collect(ch)
default:
panic("unexpected metric type")
}
}
// ms is a dummy MemStats that we populate ourselves so that we can
// populate the old metrics from it.
var ms runtime.MemStats
memStatsFromRM(&ms, c.rmSampleMap)
for _, i := range c.msMetrics {
ch <- MustNewConstMetric(i.desc, i.valType, i.eval(&ms))
}
}
// unwrapScalarRMValue unwraps a runtime/metrics value that is assumed
// to be scalar and returns the equivalent float64 value. Panics if the
// value is not scalar.
func unwrapScalarRMValue(v metrics.Value) float64 {
switch v.Kind() {
case metrics.KindUint64:
return float64(v.Uint64())
case metrics.KindFloat64:
return v.Float64()
case metrics.KindBad:
// Unsupported metric.
//
// This should never happen because we always populate our metric
// set from the runtime/metrics package.
panic("unexpected unsupported metric")
default:
// Unsupported metric kind.
//
// This should never happen because we check for this during initialization
// and flag and filter metrics whose kinds we don't understand.
panic("unexpected unsupported metric kind")
}
}
var rmExactSumMap = map[string]string{
"/gc/heap/allocs-by-size:bytes": "/gc/heap/allocs:bytes",
"/gc/heap/frees-by-size:bytes": "/gc/heap/frees:bytes",
}
// exactSumFor takes a runtime/metrics metric name (that is assumed to
// be of kind KindFloat64Histogram) and returns its exact sum and whether
// its exact sum exists.
//
// The runtime/metrics API for histograms doesn't currently expose exact
// sums, but some of the other metrics are in fact exact sums of histograms.
func (c *goCollector) exactSumFor(rmName string) float64 {
sumName, ok := rmExactSumMap[rmName]
if !ok {
return 0
}
s, ok := c.rmSampleMap[sumName]
if !ok {
return 0
}
return unwrapScalarRMValue(s.Value)
}
func memStatsFromRM(ms *runtime.MemStats, rm map[string]*metrics.Sample) {
lookupOrZero := func(name string) uint64 {
if s, ok := rm[name]; ok {
return s.Value.Uint64()
}
return 0
}
// Currently, MemStats adds tiny alloc count to both Mallocs AND Frees.
// The reason for this is because MemStats couldn't be extended at the time
// but there was a desire to have Mallocs at least be a little more representative,
// while having Mallocs - Frees still represent a live object count.
// Unfortunately, MemStats doesn't actually export a large allocation count,
// so it's impossible to pull this number out directly.
tinyAllocs := lookupOrZero("/gc/heap/tiny/allocs:objects")
ms.Mallocs = lookupOrZero("/gc/heap/allocs:objects") + tinyAllocs
ms.Frees = lookupOrZero("/gc/heap/frees:objects") + tinyAllocs
ms.TotalAlloc = lookupOrZero("/gc/heap/allocs:bytes")
ms.Sys = lookupOrZero("/memory/classes/total:bytes")
ms.Lookups = 0 // Already always zero.
ms.HeapAlloc = lookupOrZero("/memory/classes/heap/objects:bytes")
ms.Alloc = ms.HeapAlloc
ms.HeapInuse = ms.HeapAlloc + lookupOrZero("/memory/classes/heap/unused:bytes")
ms.HeapReleased = lookupOrZero("/memory/classes/heap/released:bytes")
ms.HeapIdle = ms.HeapReleased + lookupOrZero("/memory/classes/heap/free:bytes")
ms.HeapSys = ms.HeapInuse + ms.HeapIdle
ms.HeapObjects = lookupOrZero("/gc/heap/objects:objects")
ms.StackInuse = lookupOrZero("/memory/classes/heap/stacks:bytes")
ms.StackSys = ms.StackInuse + lookupOrZero("/memory/classes/os-stacks:bytes")
ms.MSpanInuse = lookupOrZero("/memory/classes/metadata/mspan/inuse:bytes")
ms.MSpanSys = ms.MSpanInuse + lookupOrZero("/memory/classes/metadata/mspan/free:bytes")
ms.MCacheInuse = lookupOrZero("/memory/classes/metadata/mcache/inuse:bytes")
ms.MCacheSys = ms.MCacheInuse + lookupOrZero("/memory/classes/metadata/mcache/free:bytes")
ms.BuckHashSys = lookupOrZero("/memory/classes/profiling/buckets:bytes")
ms.GCSys = lookupOrZero("/memory/classes/metadata/other:bytes")
ms.OtherSys = lookupOrZero("/memory/classes/other:bytes")
ms.NextGC = lookupOrZero("/gc/heap/goal:bytes")
// N.B. LastGC is omitted because runtime.GCStats already has this.
// See https://github.com/prometheus/client_golang/issues/842#issuecomment-861812034
// for more details.
ms.LastGC = 0
// N.B. GCCPUFraction is intentionally omitted. This metric is not useful,
// and often misleading due to the fact that it's an average over the lifetime
// of the process.
// See https://github.com/prometheus/client_golang/issues/842#issuecomment-861812034
// for more details.
ms.GCCPUFraction = 0
}
// batchHistogram is a mutable histogram that is updated
// in batches.
type batchHistogram struct {
selfCollector
// Static fields updated only once.
desc *Desc
hasSum bool
// Because this histogram operates in batches, it just uses a
// single mutex for everything. updates are always serialized
// but Write calls may operate concurrently with updates.
// Contention between these two sources should be rare.
mu sync.Mutex
buckets []float64 // Inclusive lower bounds, like runtime/metrics.
counts []uint64
sum float64 // Used if hasSum is true.
}
// newBatchHistogram creates a new batch histogram value with the given
// Desc, buckets, and whether or not it has an exact sum available.
//
// buckets must always be from the runtime/metrics package, following
// the same conventions.
func newBatchHistogram(desc *Desc, buckets []float64, hasSum bool) *batchHistogram {
h := &batchHistogram{
desc: desc,
buckets: buckets,
// Because buckets follows runtime/metrics conventions, there's
// 1 more value in the buckets list than there are buckets represented,
// because in runtime/metrics, the bucket values represent *boundaries*,
// and non-Inf boundaries are inclusive lower bounds for that bucket.
counts: make([]uint64, len(buckets)-1),
hasSum: hasSum,
}
h.init(h)
return h
}
// update updates the batchHistogram from a runtime/metrics histogram.
//
// sum must be provided if the batchHistogram was created to have an exact sum.
// h.buckets must be a strict subset of his.Buckets.
func (h *batchHistogram) update(his *metrics.Float64Histogram, sum float64) {
counts, buckets := his.Counts, his.Buckets
h.mu.Lock()
defer h.mu.Unlock()
// Clear buckets.
for i := range h.counts {
h.counts[i] = 0
}
// Copy and reduce buckets.
var j int
for i, count := range counts {
h.counts[j] += count
if buckets[i+1] == h.buckets[j+1] {
j++
}
}
if h.hasSum {
h.sum = sum
}
}
func (h *batchHistogram) Desc() *Desc {
return h.desc
}
func (h *batchHistogram) Write(out *dto.Metric) error {
h.mu.Lock()
defer h.mu.Unlock()
sum := float64(0)
if h.hasSum {
sum = h.sum
}
dtoBuckets := make([]*dto.Bucket, 0, len(h.counts))
totalCount := uint64(0)
for i, count := range h.counts {
totalCount += count
if !h.hasSum {
// N.B. This computed sum is an underestimate.
sum += h.buckets[i] * float64(count)
}
// Skip the +Inf bucket, but only for the bucket list.
// It must still count for sum and totalCount.
if math.IsInf(h.buckets[i+1], 1) {
break
}
// Float64Histogram's upper bound is exclusive, so make it inclusive
// by obtaining the next float64 value down, in order.
upperBound := math.Nextafter(h.buckets[i+1], h.buckets[i])
dtoBuckets = append(dtoBuckets, &dto.Bucket{
CumulativeCount: proto.Uint64(totalCount),
UpperBound: proto.Float64(upperBound),
})
}
out.Histogram = &dto.Histogram{
Bucket: dtoBuckets,
SampleCount: proto.Uint64(totalCount),
SampleSum: proto.Float64(sum),
}
return nil
}

View File

@ -116,6 +116,34 @@ func ExponentialBuckets(start, factor float64, count int) []float64 {
return buckets
}
// ExponentialBucketsRange creates 'count' buckets, where the lowest bucket is
// 'min' and the highest bucket is 'max'. The final +Inf bucket is not counted
// and not included in the returned slice. The returned slice is meant to be
// used for the Buckets field of HistogramOpts.
//
// The function panics if 'count' is 0 or negative, if 'min' is 0 or negative.
func ExponentialBucketsRange(min, max float64, count int) []float64 {
if count < 1 {
panic("ExponentialBucketsRange count needs a positive count")
}
if min <= 0 {
panic("ExponentialBucketsRange min needs to be greater than 0")
}
// Formula for exponential buckets.
// max = min*growthFactor^(bucketCount-1)
// We know max/min and highest bucket. Solve for growthFactor.
growthFactor := math.Pow(max/min, 1.0/float64(count-1))
// Now that we know growthFactor, solve for each bucket.
buckets := make([]float64, count)
for i := 1; i <= count; i++ {
buckets[i-1] = min * math.Pow(growthFactor, float64(i-1))
}
return buckets
}
// HistogramOpts bundles the options for creating a Histogram metric. It is
// mandatory to set Name to a non-empty string. All other fields are optional
// and can safely be left at their zero value, although it is strongly

View File

@ -0,0 +1,142 @@
// Copyright 2021 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 go1.17
// +build go1.17
package internal
import (
"math"
"path"
"runtime/metrics"
"strings"
"github.com/prometheus/common/model"
)
// RuntimeMetricsToProm produces a Prometheus metric name from a runtime/metrics
// metric description and validates whether the metric is suitable for integration
// with Prometheus.
//
// Returns false if a name could not be produced, or if Prometheus does not understand
// the runtime/metrics Kind.
//
// Note that the main reason a name couldn't be produced is if the runtime/metrics
// package exports a name with characters outside the valid Prometheus metric name
// character set. This is theoretically possible, but should never happen in practice.
// Still, don't rely on it.
func RuntimeMetricsToProm(d *metrics.Description) (string, string, string, bool) {
namespace := "go"
comp := strings.SplitN(d.Name, ":", 2)
key := comp[0]
unit := comp[1]
// The last path element in the key is the name,
// the rest is the subsystem.
subsystem := path.Dir(key[1:] /* remove leading / */)
name := path.Base(key)
// subsystem is translated by replacing all / and - with _.
subsystem = strings.ReplaceAll(subsystem, "/", "_")
subsystem = strings.ReplaceAll(subsystem, "-", "_")
// unit is translated assuming that the unit contains no
// non-ASCII characters.
unit = strings.ReplaceAll(unit, "-", "_")
unit = strings.ReplaceAll(unit, "*", "_")
unit = strings.ReplaceAll(unit, "/", "_per_")
// name has - replaced with _ and is concatenated with the unit and
// other data.
name = strings.ReplaceAll(name, "-", "_")
name = name + "_" + unit
if d.Cumulative {
name = name + "_total"
}
valid := model.IsValidMetricName(model.LabelValue(namespace + "_" + subsystem + "_" + name))
switch d.Kind {
case metrics.KindUint64:
case metrics.KindFloat64:
case metrics.KindFloat64Histogram:
default:
valid = false
}
return namespace, subsystem, name, valid
}
// RuntimeMetricsBucketsForUnit takes a set of buckets obtained for a runtime/metrics histogram
// type (so, lower-bound inclusive) and a unit from a runtime/metrics name, and produces
// a reduced set of buckets. This function always removes any -Inf bucket as it's represented
// as the bottom-most upper-bound inclusive bucket in Prometheus.
func RuntimeMetricsBucketsForUnit(buckets []float64, unit string) []float64 {
switch unit {
case "bytes":
// Rebucket as powers of 2.
return rebucketExp(buckets, 2)
case "seconds":
// Rebucket as powers of 10 and then merge all buckets greater
// than 1 second into the +Inf bucket.
b := rebucketExp(buckets, 10)
for i := range b {
if b[i] <= 1 {
continue
}
b[i] = math.Inf(1)
b = b[:i+1]
break
}
return b
}
return buckets
}
// rebucketExp takes a list of bucket boundaries (lower bound inclusive) and
// downsamples the buckets to those a multiple of base apart. The end result
// is a roughly exponential (in many cases, perfectly exponential) bucketing
// scheme.
func rebucketExp(buckets []float64, base float64) []float64 {
bucket := buckets[0]
var newBuckets []float64
// We may see a -Inf here, in which case, add it and skip it
// since we risk producing NaNs otherwise.
//
// We need to preserve -Inf values to maintain runtime/metrics
// conventions. We'll strip it out later.
if bucket == math.Inf(-1) {
newBuckets = append(newBuckets, bucket)
buckets = buckets[1:]
bucket = buckets[0]
}
// From now on, bucket should always have a non-Inf value because
// Infs are only ever at the ends of the bucket lists, so
// arithmetic operations on it are non-NaN.
for i := 1; i < len(buckets); i++ {
if bucket >= 0 && buckets[i] < bucket*base {
// The next bucket we want to include is at least bucket*base.
continue
} else if bucket < 0 && buckets[i] < bucket/base {
// In this case the bucket we're targeting is negative, and since
// we're ascending through buckets here, we need to divide to get
// closer to zero exponentially.
continue
}
// The +Inf bucket will always be the last one, and we'll always
// end up including it here because bucket
newBuckets = append(newBuckets, bucket)
bucket = buckets[i]
}
return append(newBuckets, bucket)
}

View File

@ -11,6 +11,7 @@
// See the License for the specific language governing permissions and
// limitations under the License.
//go:build !windows
// +build !windows
package prometheus

View File

@ -49,7 +49,10 @@ func InstrumentRoundTripperInFlight(gauge prometheus.Gauge, next http.RoundTripp
// http.RoundTripper to observe the request result with the provided CounterVec.
// The CounterVec must have zero, one, or two non-const non-curried labels. For
// those, the only allowed label names are "code" and "method". The function
// panics otherwise. Partitioning of the CounterVec happens by HTTP status code
// panics otherwise. For the "method" label a predefined default label value set
// is used to filter given values. Values besides predefined values will count
// as `unknown` method.`WithExtraMethods` can be used to add more
// methods to the set. Partitioning of the CounterVec happens by HTTP status code
// and/or HTTP method if the respective instance label names are present in the
// CounterVec. For unpartitioned counting, use a CounterVec with zero labels.
//
@ -57,13 +60,18 @@ func InstrumentRoundTripperInFlight(gauge prometheus.Gauge, next http.RoundTripp
// is not incremented.
//
// See the example for ExampleInstrumentRoundTripperDuration for example usage.
func InstrumentRoundTripperCounter(counter *prometheus.CounterVec, next http.RoundTripper) RoundTripperFunc {
func InstrumentRoundTripperCounter(counter *prometheus.CounterVec, next http.RoundTripper, opts ...Option) RoundTripperFunc {
rtOpts := &option{}
for _, o := range opts {
o(rtOpts)
}
code, method := checkLabels(counter)
return RoundTripperFunc(func(r *http.Request) (*http.Response, error) {
resp, err := next.RoundTrip(r)
if err == nil {
counter.With(labels(code, method, r.Method, resp.StatusCode)).Inc()
counter.With(labels(code, method, r.Method, resp.StatusCode, rtOpts.extraMethods...)).Inc()
}
return resp, err
})
@ -73,7 +81,10 @@ func InstrumentRoundTripperCounter(counter *prometheus.CounterVec, next http.Rou
// http.RoundTripper to observe the request duration with the provided
// ObserverVec. The ObserverVec must have zero, one, or two non-const
// non-curried labels. For those, the only allowed label names are "code" and
// "method". The function panics otherwise. The Observe method of the Observer
// "method". The function panics otherwise. For the "method" label a predefined
// default label value set is used to filter given values. Values besides
// predefined values will count as `unknown` method. `WithExtraMethods`
// can be used to add more methods to the set. The Observe method of the Observer
// in the ObserverVec is called with the request duration in
// seconds. Partitioning happens by HTTP status code and/or HTTP method if the
// respective instance label names are present in the ObserverVec. For
@ -85,14 +96,19 @@ func InstrumentRoundTripperCounter(counter *prometheus.CounterVec, next http.Rou
//
// Note that this method is only guaranteed to never observe negative durations
// if used with Go1.9+.
func InstrumentRoundTripperDuration(obs prometheus.ObserverVec, next http.RoundTripper) RoundTripperFunc {
func InstrumentRoundTripperDuration(obs prometheus.ObserverVec, next http.RoundTripper, opts ...Option) RoundTripperFunc {
rtOpts := &option{}
for _, o := range opts {
o(rtOpts)
}
code, method := checkLabels(obs)
return RoundTripperFunc(func(r *http.Request) (*http.Response, error) {
start := time.Now()
resp, err := next.RoundTrip(r)
if err == nil {
obs.With(labels(code, method, r.Method, resp.StatusCode)).Observe(time.Since(start).Seconds())
obs.With(labels(code, method, r.Method, resp.StatusCode, rtOpts.extraMethods...)).Observe(time.Since(start).Seconds())
}
return resp, err
})

View File

@ -45,7 +45,10 @@ func InstrumentHandlerInFlight(g prometheus.Gauge, next http.Handler) http.Handl
// http.Handler to observe the request duration with the provided ObserverVec.
// The ObserverVec must have valid metric and label names and must have zero,
// one, or two non-const non-curried labels. For those, the only allowed label
// names are "code" and "method". The function panics otherwise. The Observe
// names are "code" and "method". The function panics otherwise. For the "method"
// label a predefined default label value set is used to filter given values.
// Values besides predefined values will count as `unknown` method.
//`WithExtraMethods` can be used to add more methods to the set. The Observe
// method of the Observer in the ObserverVec is called with the request duration
// in seconds. Partitioning happens by HTTP status code and/or HTTP method if
// the respective instance label names are present in the ObserverVec. For
@ -58,7 +61,12 @@ func InstrumentHandlerInFlight(g prometheus.Gauge, next http.Handler) http.Handl
//
// Note that this method is only guaranteed to never observe negative durations
// if used with Go1.9+.
func InstrumentHandlerDuration(obs prometheus.ObserverVec, next http.Handler) http.HandlerFunc {
func InstrumentHandlerDuration(obs prometheus.ObserverVec, next http.Handler, opts ...Option) http.HandlerFunc {
mwOpts := &option{}
for _, o := range opts {
o(mwOpts)
}
code, method := checkLabels(obs)
if code {
@ -67,14 +75,14 @@ func InstrumentHandlerDuration(obs prometheus.ObserverVec, next http.Handler) ht
d := newDelegator(w, nil)
next.ServeHTTP(d, r)
obs.With(labels(code, method, r.Method, d.Status())).Observe(time.Since(now).Seconds())
obs.With(labels(code, method, r.Method, d.Status(), mwOpts.extraMethods...)).Observe(time.Since(now).Seconds())
})
}
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
now := time.Now()
next.ServeHTTP(w, r)
obs.With(labels(code, method, r.Method, 0)).Observe(time.Since(now).Seconds())
obs.With(labels(code, method, r.Method, 0, mwOpts.extraMethods...)).Observe(time.Since(now).Seconds())
})
}
@ -82,7 +90,10 @@ func InstrumentHandlerDuration(obs prometheus.ObserverVec, next http.Handler) ht
// to observe the request result with the provided CounterVec. The CounterVec
// must have valid metric and label names and must have zero, one, or two
// non-const non-curried labels. For those, the only allowed label names are
// "code" and "method". The function panics otherwise. Partitioning of the
// "code" and "method". The function panics otherwise. For the "method"
// label a predefined default label value set is used to filter given values.
// Values besides predefined values will count as `unknown` method.
// `WithExtraMethods` can be used to add more methods to the set. Partitioning of the
// CounterVec happens by HTTP status code and/or HTTP method if the respective
// instance label names are present in the CounterVec. For unpartitioned
// counting, use a CounterVec with zero labels.
@ -92,20 +103,25 @@ func InstrumentHandlerDuration(obs prometheus.ObserverVec, next http.Handler) ht
// If the wrapped Handler panics, the Counter is not incremented.
//
// See the example for InstrumentHandlerDuration for example usage.
func InstrumentHandlerCounter(counter *prometheus.CounterVec, next http.Handler) http.HandlerFunc {
func InstrumentHandlerCounter(counter *prometheus.CounterVec, next http.Handler, opts ...Option) http.HandlerFunc {
mwOpts := &option{}
for _, o := range opts {
o(mwOpts)
}
code, method := checkLabels(counter)
if code {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
d := newDelegator(w, nil)
next.ServeHTTP(d, r)
counter.With(labels(code, method, r.Method, d.Status())).Inc()
counter.With(labels(code, method, r.Method, d.Status(), mwOpts.extraMethods...)).Inc()
})
}
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
next.ServeHTTP(w, r)
counter.With(labels(code, method, r.Method, 0)).Inc()
counter.With(labels(code, method, r.Method, 0, mwOpts.extraMethods...)).Inc()
})
}
@ -114,7 +130,10 @@ func InstrumentHandlerCounter(counter *prometheus.CounterVec, next http.Handler)
// until the response headers are written. The ObserverVec must have valid
// metric and label names and must have zero, one, or two non-const non-curried
// labels. For those, the only allowed label names are "code" and "method". The
// function panics otherwise. The Observe method of the Observer in the
// function panics otherwise. For the "method" label a predefined default label
// value set is used to filter given values. Values besides predefined values
// will count as `unknown` method.`WithExtraMethods` can be used to add more
// methods to the set. The Observe method of the Observer in the
// ObserverVec is called with the request duration in seconds. Partitioning
// happens by HTTP status code and/or HTTP method if the respective instance
// label names are present in the ObserverVec. For unpartitioned observations,
@ -128,13 +147,18 @@ func InstrumentHandlerCounter(counter *prometheus.CounterVec, next http.Handler)
// if used with Go1.9+.
//
// See the example for InstrumentHandlerDuration for example usage.
func InstrumentHandlerTimeToWriteHeader(obs prometheus.ObserverVec, next http.Handler) http.HandlerFunc {
func InstrumentHandlerTimeToWriteHeader(obs prometheus.ObserverVec, next http.Handler, opts ...Option) http.HandlerFunc {
mwOpts := &option{}
for _, o := range opts {
o(mwOpts)
}
code, method := checkLabels(obs)
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
now := time.Now()
d := newDelegator(w, func(status int) {
obs.With(labels(code, method, r.Method, status)).Observe(time.Since(now).Seconds())
obs.With(labels(code, method, r.Method, status, mwOpts.extraMethods...)).Observe(time.Since(now).Seconds())
})
next.ServeHTTP(d, r)
})
@ -144,8 +168,11 @@ func InstrumentHandlerTimeToWriteHeader(obs prometheus.ObserverVec, next http.Ha
// http.Handler to observe the request size with the provided ObserverVec. The
// ObserverVec must have valid metric and label names and must have zero, one,
// or two non-const non-curried labels. For those, the only allowed label names
// are "code" and "method". The function panics otherwise. The Observe method of
// the Observer in the ObserverVec is called with the request size in
// are "code" and "method". The function panics otherwise. For the "method"
// label a predefined default label value set is used to filter given values.
// Values besides predefined values will count as `unknown` method.
// `WithExtraMethods` can be used to add more methods to the set. The Observe
// method of the Observer in the ObserverVec is called with the request size in
// bytes. Partitioning happens by HTTP status code and/or HTTP method if the
// respective instance label names are present in the ObserverVec. For
// unpartitioned observations, use an ObserverVec with zero labels. Note that
@ -156,7 +183,12 @@ func InstrumentHandlerTimeToWriteHeader(obs prometheus.ObserverVec, next http.Ha
// If the wrapped Handler panics, no values are reported.
//
// See the example for InstrumentHandlerDuration for example usage.
func InstrumentHandlerRequestSize(obs prometheus.ObserverVec, next http.Handler) http.HandlerFunc {
func InstrumentHandlerRequestSize(obs prometheus.ObserverVec, next http.Handler, opts ...Option) http.HandlerFunc {
mwOpts := &option{}
for _, o := range opts {
o(mwOpts)
}
code, method := checkLabels(obs)
if code {
@ -164,14 +196,14 @@ func InstrumentHandlerRequestSize(obs prometheus.ObserverVec, next http.Handler)
d := newDelegator(w, nil)
next.ServeHTTP(d, r)
size := computeApproximateRequestSize(r)
obs.With(labels(code, method, r.Method, d.Status())).Observe(float64(size))
obs.With(labels(code, method, r.Method, d.Status(), mwOpts.extraMethods...)).Observe(float64(size))
})
}
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
next.ServeHTTP(w, r)
size := computeApproximateRequestSize(r)
obs.With(labels(code, method, r.Method, 0)).Observe(float64(size))
obs.With(labels(code, method, r.Method, 0, mwOpts.extraMethods...)).Observe(float64(size))
})
}
@ -179,8 +211,11 @@ func InstrumentHandlerRequestSize(obs prometheus.ObserverVec, next http.Handler)
// http.Handler to observe the response size with the provided ObserverVec. The
// ObserverVec must have valid metric and label names and must have zero, one,
// or two non-const non-curried labels. For those, the only allowed label names
// are "code" and "method". The function panics otherwise. The Observe method of
// the Observer in the ObserverVec is called with the response size in
// are "code" and "method". The function panics otherwise. For the "method"
// label a predefined default label value set is used to filter given values.
// Values besides predefined values will count as `unknown` method.
// `WithExtraMethods` can be used to add more methods to the set. The Observe
// method of the Observer in the ObserverVec is called with the response size in
// bytes. Partitioning happens by HTTP status code and/or HTTP method if the
// respective instance label names are present in the ObserverVec. For
// unpartitioned observations, use an ObserverVec with zero labels. Note that
@ -191,12 +226,18 @@ func InstrumentHandlerRequestSize(obs prometheus.ObserverVec, next http.Handler)
// If the wrapped Handler panics, no values are reported.
//
// See the example for InstrumentHandlerDuration for example usage.
func InstrumentHandlerResponseSize(obs prometheus.ObserverVec, next http.Handler) http.Handler {
func InstrumentHandlerResponseSize(obs prometheus.ObserverVec, next http.Handler, opts ...Option) http.Handler {
mwOpts := &option{}
for _, o := range opts {
o(mwOpts)
}
code, method := checkLabels(obs)
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
d := newDelegator(w, nil)
next.ServeHTTP(d, r)
obs.With(labels(code, method, r.Method, d.Status())).Observe(float64(d.Written()))
obs.With(labels(code, method, r.Method, d.Status(), mwOpts.extraMethods...)).Observe(float64(d.Written()))
})
}
@ -290,7 +331,7 @@ func isLabelCurried(c prometheus.Collector, label string) bool {
// unnecessary allocations on each request.
var emptyLabels = prometheus.Labels{}
func labels(code, method bool, reqMethod string, status int) prometheus.Labels {
func labels(code, method bool, reqMethod string, status int, extraMethods ...string) prometheus.Labels {
if !(code || method) {
return emptyLabels
}
@ -300,7 +341,7 @@ func labels(code, method bool, reqMethod string, status int) prometheus.Labels {
labels["code"] = sanitizeCode(status)
}
if method {
labels["method"] = sanitizeMethod(reqMethod)
labels["method"] = sanitizeMethod(reqMethod, extraMethods...)
}
return labels
@ -330,7 +371,12 @@ func computeApproximateRequestSize(r *http.Request) int {
return s
}
func sanitizeMethod(m string) string {
// If the wrapped http.Handler has a known method, it will be sanitized and returned.
// Otherwise, "unknown" will be returned. The known method list can be extended
// as needed by using extraMethods parameter.
func sanitizeMethod(m string, extraMethods ...string) string {
// See https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods for
// the methods chosen as default.
switch m {
case "GET", "get":
return "get"
@ -348,15 +394,25 @@ func sanitizeMethod(m string) string {
return "options"
case "NOTIFY", "notify":
return "notify"
case "TRACE", "trace":
return "trace"
case "PATCH", "patch":
return "patch"
default:
return strings.ToLower(m)
for _, method := range extraMethods {
if strings.EqualFold(m, method) {
return strings.ToLower(m)
}
}
return "unknown"
}
}
// If the wrapped http.Handler has not set a status code, i.e. the value is
// currently 0, santizeCode will return 200, for consistency with behavior in
// currently 0, sanitizeCode will return 200, for consistency with behavior in
// the stdlib.
func sanitizeCode(s int) string {
// See for accepted codes https://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml
switch s {
case 100:
return "100"
@ -453,6 +509,9 @@ func sanitizeCode(s int) string {
return "511"
default:
return strconv.Itoa(s)
if s >= 100 && s <= 599 {
return strconv.Itoa(s)
}
return "unknown"
}
}

View File

@ -0,0 +1,31 @@
// Copyright 2022 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 promhttp
// Option are used to configure a middleware or round tripper..
type Option func(*option)
type option struct {
extraMethods []string
}
// WithExtraMethods adds additional HTTP methods to the list of allowed methods.
// See https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods for the default list.
//
// See the example for ExampleInstrumentHandlerWithExtraMethods for example usage.
func WithExtraMethods(methods ...string) Option {
return func(o *option) {
o.extraMethods = methods
}
}

View File

@ -21,7 +21,7 @@ import (
//nolint:staticcheck // Ignore SA1019. Need to keep deprecated package for compatibility.
"github.com/golang/protobuf/proto"
"github.com/golang/protobuf/ptypes"
"google.golang.org/protobuf/types/known/timestamppb"
dto "github.com/prometheus/client_model/go"
)
@ -183,8 +183,8 @@ const ExemplarMaxRunes = 64
func newExemplar(value float64, ts time.Time, l Labels) (*dto.Exemplar, error) {
e := &dto.Exemplar{}
e.Value = proto.Float64(value)
tsProto, err := ptypes.TimestampProto(ts)
if err != nil {
tsProto := timestamppb.New(ts)
if err := tsProto.CheckValid(); err != nil {
return nil, err
}
e.Timestamp = tsProto

View File

@ -18,7 +18,7 @@ import (
"io"
"net/http"
"github.com/golang/protobuf/proto"
"github.com/golang/protobuf/proto" //nolint:staticcheck // Ignore SA1019. Need to keep deprecated package for compatibility.
"github.com/matttproud/golang_protobuf_extensions/pbutil"
"github.com/prometheus/common/internal/bitbucket.org/ww/goautoneg"

View File

@ -24,7 +24,7 @@ import (
dto "github.com/prometheus/client_model/go"
"github.com/golang/protobuf/proto"
"github.com/golang/protobuf/proto" //nolint:staticcheck // Ignore SA1019. Need to keep deprecated package for compatibility.
"github.com/prometheus/common/model"
)

View File

@ -18,6 +18,8 @@ include Makefile.common
./ttar -C $(dir $*) -x -f $*.ttar
touch $@
fixtures: fixtures/.unpacked
update_fixtures:
rm -vf fixtures/.unpacked
./ttar -c -f fixtures.ttar fixtures/

View File

@ -78,12 +78,12 @@ ifneq ($(shell which gotestsum),)
endif
endif
PROMU_VERSION ?= 0.7.0
PROMU_VERSION ?= 0.12.0
PROMU_URL := https://github.com/prometheus/promu/releases/download/v$(PROMU_VERSION)/promu-$(PROMU_VERSION).$(GO_BUILD_PLATFORM).tar.gz
GOLANGCI_LINT :=
GOLANGCI_LINT_OPTS ?=
GOLANGCI_LINT_VERSION ?= v1.18.0
GOLANGCI_LINT_VERSION ?= v1.39.0
# golangci-lint only supports linux, darwin and windows platforms on i386/amd64.
# windows isn't included here because of the path separator being different.
ifeq ($(GOHOSTOS),$(filter $(GOHOSTOS),linux darwin))
@ -118,7 +118,7 @@ endif
%: common-% ;
.PHONY: common-all
common-all: precheck style check_license lint unused build test
common-all: precheck style check_license lint yamllint unused build test
.PHONY: common-style
common-style:
@ -198,6 +198,15 @@ else
endif
endif
.PHONY: common-yamllint
common-yamllint:
@echo ">> running yamllint on all YAML files in the repository"
ifeq (, $(shell which yamllint))
@echo "yamllint not installed so skipping"
else
yamllint .
endif
# For backward-compatibility.
.PHONY: common-staticcheck
common-staticcheck: lint

View File

@ -6,8 +6,8 @@ metrics from the pseudo-filesystems /proc and /sys.
*WARNING*: This package is a work in progress. Its API may still break in
backwards-incompatible ways without warnings. Use it at your own risk.
[![GoDoc](https://godoc.org/github.com/prometheus/procfs?status.png)](https://godoc.org/github.com/prometheus/procfs)
[![Build Status](https://travis-ci.org/prometheus/procfs.svg?branch=master)](https://travis-ci.org/prometheus/procfs)
[![Go Reference](https://pkg.go.dev/badge/github.com/prometheus/procfs.svg)](https://pkg.go.dev/github.com/prometheus/procfs)
[![CircleCI](https://circleci.com/gh/prometheus/procfs/tree/master.svg?style=svg)](https://circleci.com/gh/prometheus/procfs/tree/master)
[![Go Report Card](https://goreportcard.com/badge/github.com/prometheus/procfs)](https://goreportcard.com/report/github.com/prometheus/procfs)
## Usage

30
vendor/github.com/prometheus/procfs/cmdline.go generated vendored Normal file
View File

@ -0,0 +1,30 @@
// Copyright 2021 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 procfs
import (
"strings"
"github.com/prometheus/procfs/internal/util"
)
// CmdLine returns the command line of the kernel.
func (fs FS) CmdLine() ([]string, error) {
data, err := util.ReadFileNoStat(fs.proc.Path("cmdline"))
if err != nil {
return nil, err
}
return strings.Fields(string(data)), nil
}

View File

@ -31,7 +31,7 @@
// log.Fatalf("could not get process: %s", err)
// }
//
// stat, err := p.NewStat()
// stat, err := p.Stat()
// if err != nil {
// log.Fatalf("could not get process stat: %s", err)
// }

File diff suppressed because it is too large Load Diff

View File

@ -22,9 +22,12 @@ import (
)
var (
statusLineRE = regexp.MustCompile(`(\d+) blocks .*\[(\d+)/(\d+)\] \[[U_]+\]`)
recoveryLineRE = regexp.MustCompile(`\((\d+)/\d+\)`)
componentDeviceRE = regexp.MustCompile(`(.*)\[\d+\]`)
statusLineRE = regexp.MustCompile(`(\d+) blocks .*\[(\d+)/(\d+)\] \[([U_]+)\]`)
recoveryLineBlocksRE = regexp.MustCompile(`\((\d+)/\d+\)`)
recoveryLinePctRE = regexp.MustCompile(`= (.+)%`)
recoveryLineFinishRE = regexp.MustCompile(`finish=(.+)min`)
recoveryLineSpeedRE = regexp.MustCompile(`speed=(.+)[A-Z]`)
componentDeviceRE = regexp.MustCompile(`(.*)\[\d+\]`)
)
// MDStat holds info parsed from /proc/mdstat.
@ -39,12 +42,20 @@ type MDStat struct {
DisksTotal int64
// Number of failed disks.
DisksFailed int64
// Number of "down" disks. (the _ indicator in the status line)
DisksDown int64
// Spare disks in the device.
DisksSpare int64
// Number of blocks the device holds.
BlocksTotal int64
// Number of blocks on the device that are in sync.
BlocksSynced int64
// progress percentage of current sync
BlocksSyncedPct float64
// estimated finishing time for current sync (in minutes)
BlocksSyncedFinishTime float64
// current sync speed (in Kilobytes/sec)
BlocksSyncedSpeed float64
// Name of md component devices
Devices []string
}
@ -91,7 +102,7 @@ func parseMDStat(mdStatData []byte) ([]MDStat, error) {
// Failed disks have the suffix (F) & Spare disks have the suffix (S).
fail := int64(strings.Count(line, "(F)"))
spare := int64(strings.Count(line, "(S)"))
active, total, size, err := evalStatusLine(lines[i], lines[i+1])
active, total, down, size, err := evalStatusLine(lines[i], lines[i+1])
if err != nil {
return nil, fmt.Errorf("error parsing md device lines: %w", err)
@ -105,6 +116,9 @@ 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
speed := float64(0)
finish := float64(0)
pct := float64(0)
recovering := strings.Contains(lines[syncLineIdx], "recovery")
resyncing := strings.Contains(lines[syncLineIdx], "resync")
checking := strings.Contains(lines[syncLineIdx], "check")
@ -124,7 +138,7 @@ func parseMDStat(mdStatData []byte) ([]MDStat, error) {
strings.Contains(lines[syncLineIdx], "DELAYED") {
syncedBlocks = 0
} else {
syncedBlocks, err = evalRecoveryLine(lines[syncLineIdx])
syncedBlocks, pct, finish, speed, err = evalRecoveryLine(lines[syncLineIdx])
if err != nil {
return nil, fmt.Errorf("error parsing sync line in md device %q: %w", mdName, err)
}
@ -132,69 +146,104 @@ func parseMDStat(mdStatData []byte) ([]MDStat, error) {
}
mdStats = append(mdStats, MDStat{
Name: mdName,
ActivityState: state,
DisksActive: active,
DisksFailed: fail,
DisksSpare: spare,
DisksTotal: total,
BlocksTotal: size,
BlocksSynced: syncedBlocks,
Devices: evalComponentDevices(deviceFields),
Name: mdName,
ActivityState: state,
DisksActive: active,
DisksFailed: fail,
DisksDown: down,
DisksSpare: spare,
DisksTotal: total,
BlocksTotal: size,
BlocksSynced: syncedBlocks,
BlocksSyncedPct: pct,
BlocksSyncedFinishTime: finish,
BlocksSyncedSpeed: speed,
Devices: evalComponentDevices(deviceFields),
})
}
return mdStats, nil
}
func evalStatusLine(deviceLine, statusLine string) (active, total, size int64, err error) {
func evalStatusLine(deviceLine, statusLine string) (active, total, down, size int64, err error) {
sizeStr := strings.Fields(statusLine)[0]
size, err = strconv.ParseInt(sizeStr, 10, 64)
if err != nil {
return 0, 0, 0, fmt.Errorf("unexpected statusLine %q: %w", statusLine, err)
return 0, 0, 0, 0, fmt.Errorf("unexpected statusLine %q: %w", statusLine, err)
}
if strings.Contains(deviceLine, "raid0") || strings.Contains(deviceLine, "linear") {
// In the device deviceLine, only disks have a number associated with them in [].
total = int64(strings.Count(deviceLine, "["))
return total, total, size, nil
return total, total, 0, size, nil
}
if strings.Contains(deviceLine, "inactive") {
return 0, 0, size, nil
return 0, 0, 0, size, nil
}
matches := statusLineRE.FindStringSubmatch(statusLine)
if len(matches) != 4 {
return 0, 0, 0, fmt.Errorf("couldn't find all the substring matches: %s", statusLine)
if len(matches) != 5 {
return 0, 0, 0, 0, fmt.Errorf("couldn't find all the substring matches: %s", statusLine)
}
total, err = strconv.ParseInt(matches[2], 10, 64)
if err != nil {
return 0, 0, 0, fmt.Errorf("unexpected statusLine %q: %w", statusLine, err)
return 0, 0, 0, 0, fmt.Errorf("unexpected statusLine %q: %w", statusLine, err)
}
active, err = strconv.ParseInt(matches[3], 10, 64)
if err != nil {
return 0, 0, 0, fmt.Errorf("unexpected statusLine %q: %w", statusLine, err)
return 0, 0, 0, 0, fmt.Errorf("unexpected statusLine %q: %w", statusLine, err)
}
down = int64(strings.Count(matches[4], "_"))
return active, total, size, nil
return active, total, down, size, nil
}
func evalRecoveryLine(recoveryLine string) (syncedBlocks int64, err error) {
matches := recoveryLineRE.FindStringSubmatch(recoveryLine)
func evalRecoveryLine(recoveryLine string) (syncedBlocks int64, pct float64, finish float64, speed float64, err error) {
matches := recoveryLineBlocksRE.FindStringSubmatch(recoveryLine)
if len(matches) != 2 {
return 0, fmt.Errorf("unexpected recoveryLine: %s", recoveryLine)
return 0, 0, 0, 0, fmt.Errorf("unexpected recoveryLine: %s", recoveryLine)
}
syncedBlocks, err = strconv.ParseInt(matches[1], 10, 64)
if err != nil {
return 0, fmt.Errorf("error parsing int from recoveryLine %q: %w", recoveryLine, err)
return 0, 0, 0, 0, fmt.Errorf("error parsing int from recoveryLine %q: %w", recoveryLine, err)
}
return syncedBlocks, nil
// Get percentage complete
matches = recoveryLinePctRE.FindStringSubmatch(recoveryLine)
if len(matches) != 2 {
return syncedBlocks, 0, 0, 0, fmt.Errorf("unexpected recoveryLine matching percentage: %s", recoveryLine)
}
pct, err = strconv.ParseFloat(strings.TrimSpace(matches[1]), 64)
if err != nil {
return syncedBlocks, 0, 0, 0, fmt.Errorf("error parsing float from recoveryLine %q: %w", recoveryLine, err)
}
// Get time expected left to complete
matches = recoveryLineFinishRE.FindStringSubmatch(recoveryLine)
if len(matches) != 2 {
return syncedBlocks, pct, 0, 0, fmt.Errorf("unexpected recoveryLine matching est. finish time: %s", recoveryLine)
}
finish, err = strconv.ParseFloat(matches[1], 64)
if err != nil {
return syncedBlocks, pct, 0, 0, fmt.Errorf("error parsing float from recoveryLine %q: %w", recoveryLine, err)
}
// Get recovery speed
matches = recoveryLineSpeedRE.FindStringSubmatch(recoveryLine)
if len(matches) != 2 {
return syncedBlocks, pct, finish, 0, fmt.Errorf("unexpected recoveryLine matching speed: %s", recoveryLine)
}
speed, err = strconv.ParseFloat(matches[1], 64)
if err != nil {
return syncedBlocks, pct, finish, 0, fmt.Errorf("error parsing float from recoveryLine %q: %w", recoveryLine, err)
}
return syncedBlocks, pct, finish, speed, nil
}
func evalComponentDevices(deviceFields []string) []string {

View File

@ -65,6 +65,7 @@ type (
TxQueue uint64
RxQueue uint64
UID uint64
Inode uint64
}
)
@ -150,9 +151,9 @@ func parseIP(hexIP string) (net.IP, error) {
// parseNetIPSocketLine parses a single line, represented by a list of fields.
func parseNetIPSocketLine(fields []string) (*netIPSocketLine, error) {
line := &netIPSocketLine{}
if len(fields) < 8 {
if len(fields) < 10 {
return nil, fmt.Errorf(
"cannot parse net socket line as it has less then 8 columns %q",
"cannot parse net socket line as it has less then 10 columns %q",
strings.Join(fields, " "),
)
}
@ -216,5 +217,10 @@ func parseNetIPSocketLine(fields []string) (*netIPSocketLine, error) {
return nil, fmt.Errorf("cannot parse uid value in socket line: %w", err)
}
// inode
if line.Inode, err = strconv.ParseUint(fields[9], 0, 64); err != nil {
return nil, fmt.Errorf("cannot parse inode value in socket line: %w", err)
}
return line, nil
}

68
vendor/github.com/prometheus/procfs/netstat.go generated vendored Normal file
View File

@ -0,0 +1,68 @@
// Copyright 2020 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 procfs
import (
"bufio"
"os"
"path/filepath"
"strconv"
"strings"
)
// NetStat contains statistics for all the counters from one file
type NetStat struct {
Filename string
Stats map[string][]uint64
}
// NetStat retrieves stats from /proc/net/stat/
func (fs FS) NetStat() ([]NetStat, error) {
statFiles, err := filepath.Glob(fs.proc.Path("net/stat/*"))
if err != nil {
return nil, err
}
var netStatsTotal []NetStat
for _, filePath := range statFiles {
file, err := os.Open(filePath)
if err != nil {
return nil, err
}
netStatFile := NetStat{
Filename: filepath.Base(filePath),
Stats: make(map[string][]uint64),
}
scanner := bufio.NewScanner(file)
scanner.Scan()
// First string is always a header for stats
var headers []string
headers = append(headers, strings.Fields(scanner.Text())...)
// Other strings represent per-CPU counters
for scanner.Scan() {
for num, counter := range strings.Fields(scanner.Text()) {
value, err := strconv.ParseUint(counter, 16, 32)
if err != nil {
return nil, err
}
netStatFile.Stats[headers[num]] = append(netStatFile.Stats[headers[num]], value)
}
}
netStatsTotal = append(netStatsTotal, netStatFile)
}
return netStatsTotal, nil
}

View File

@ -90,7 +90,7 @@ func parseCgroups(data []byte) ([]Cgroup, error) {
// control hierarchy running on this system. On every system (v1 and v2), all hierarchies contain all processes,
// so the len of the returned struct is equal to the number of active hierarchies on this system
func (p Proc) Cgroups() ([]Cgroup, error) {
data, err := util.ReadFileNoStat(fmt.Sprintf("/proc/%d/cgroup", p.PID))
data, err := util.ReadFileNoStat(p.path("cgroup"))
if err != nil {
return nil, err
}

View File

@ -100,6 +100,15 @@ type ProcStat struct {
VSize uint
// Resident set size in pages.
RSS int
// Soft limit in bytes on the rss of the process.
RSSLimit uint64
// Real-time scheduling priority, a number in the range 1 to 99 for processes
// scheduled under a real-time policy, or 0, for non-real-time processes.
RTPriority uint
// Scheduling policy.
Policy uint
// Aggregated block I/O delays, measured in clock ticks (centiseconds).
DelayAcctBlkIOTicks uint64
proc fs.FS
}
@ -119,7 +128,8 @@ func (p Proc) Stat() (ProcStat, error) {
}
var (
ignore int
ignoreInt64 int64
ignoreUint64 uint64
s = ProcStat{PID: p.PID, proc: p.fs}
l = bytes.Index(data, []byte("("))
@ -151,10 +161,28 @@ func (p Proc) Stat() (ProcStat, error) {
&s.Priority,
&s.Nice,
&s.NumThreads,
&ignore,
&ignoreInt64,
&s.Starttime,
&s.VSize,
&s.RSS,
&s.RSSLimit,
&ignoreUint64,
&ignoreUint64,
&ignoreUint64,
&ignoreUint64,
&ignoreUint64,
&ignoreUint64,
&ignoreUint64,
&ignoreUint64,
&ignoreUint64,
&ignoreUint64,
&ignoreUint64,
&ignoreUint64,
&ignoreInt64,
&ignoreInt64,
&s.RTPriority,
&s.Policy,
&s.DelayAcctBlkIOTicks,
)
if err != nil {
return ProcStat{}, err

View File

@ -99,7 +99,6 @@ func parseZoneinfo(zoneinfoData []byte) ([]Zoneinfo, error) {
continue
}
if strings.HasPrefix(strings.TrimSpace(line), "per-node stats") {
zoneinfoElement.Zone = ""
continue
}
parts := strings.Fields(strings.TrimSpace(line))

13
vendor/github.com/spf13/cobra/MAINTAINERS generated vendored Normal file
View File

@ -0,0 +1,13 @@
maintainers:
- spf13
- johnSchnake
- jpmcb
- marckhouzam
inactive:
- anthonyfok
- bep
- bogem
- broady
- eparis
- jharshman
- wfernandes

View File

@ -9,11 +9,11 @@ ifeq (, $(shell which richgo))
$(warning "could not find richgo in $(PATH), run: go get github.com/kyoh86/richgo")
endif
.PHONY: fmt lint test cobra_generator install_deps clean
.PHONY: fmt lint test install_deps clean
default: all
all: fmt test cobra_generator
all: fmt test
fmt:
$(info ******************** checking formatting ********************)
@ -27,11 +27,6 @@ test: install_deps
$(info ******************** running tests ********************)
richgo test -v ./...
cobra_generator: install_deps
$(info ******************** building generator ********************)
mkdir -p $(BIN)
make -C cobra all
install_deps:
$(info ******************** downloading dependencies ********************)
go get -v ./...

View File

@ -1,13 +1,13 @@
![cobra logo](https://cloud.githubusercontent.com/assets/173412/10886352/ad566232-814f-11e5-9cd0-aa101788c117.png)
Cobra is both a library for creating powerful modern CLI applications as well as a program to generate applications and command files.
Cobra is a library for creating powerful modern CLI applications.
Cobra is used in many Go projects such as [Kubernetes](http://kubernetes.io/),
[Hugo](https://gohugo.io), and [Github CLI](https://github.com/cli/cli) to
name a few. [This list](./projects_using_cobra.md) contains a more extensive list of projects using Cobra.
[![](https://img.shields.io/github/workflow/status/spf13/cobra/Test?longCache=tru&label=Test&logo=github%20actions&logoColor=fff)](https://github.com/spf13/cobra/actions?query=workflow%3ATest)
[![GoDoc](https://godoc.org/github.com/spf13/cobra?status.svg)](https://godoc.org/github.com/spf13/cobra)
[![Go Reference](https://pkg.go.dev/badge/github.com/spf13/cobra.svg)](https://pkg.go.dev/github.com/spf13/cobra)
[![Go Report Card](https://goreportcard.com/badge/github.com/spf13/cobra)](https://goreportcard.com/report/github.com/spf13/cobra)
[![Slack](https://img.shields.io/badge/Slack-cobra-brightgreen)](https://gophers.slack.com/archives/CD3LP1199)
@ -16,15 +16,11 @@ name a few. [This list](./projects_using_cobra.md) contains a more extensive lis
Cobra is a library providing a simple interface to create powerful modern CLI
interfaces similar to git & go tools.
Cobra is also an application that will generate your application scaffolding to rapidly
develop a Cobra-based application.
Cobra provides:
* Easy subcommand-based CLIs: `app server`, `app fetch`, etc.
* Fully POSIX-compliant flags (including short & long versions)
* Nested subcommands
* Global, local and cascading flags
* Easy generation of applications & commands with `cobra init` & `cobra add cmdname`
* Intelligent suggestions (`app srver`... did you mean `app server`?)
* Automatic help generation for commands and flags
* Automatic help flag recognition of `-h`, `--help`, etc.
@ -83,10 +79,11 @@ which maintains the same interface while adding POSIX compliance.
# Installing
Using Cobra is easy. First, use `go get` to install the latest version
of the library. This command will install the `cobra` generator executable
along with the library and its dependencies:
of the library.
go get -u github.com/spf13/cobra
```
go get -u github.com/spf13/cobra@latest
```
Next, include Cobra in your application:
@ -95,10 +92,17 @@ import "github.com/spf13/cobra"
```
# Usage
Cobra provides its own program that will create your application and add any
commands you want. It's the easiest way to incorporate Cobra into your application.
`cobra-cli` is a command line program to generate cobra applications and command files.
It will bootstrap your application scaffolding to rapidly
develop a Cobra-based application. It is the easiest way to incorporate Cobra into your application.
For complete details on using the Cobra generator, please read [The Cobra Generator README](https://github.com/spf13/cobra/blob/master/cobra/README.md)
It can be installed by running:
```
go install github.com/spf13/cobra-cli@latest
```
For complete details on using the Cobra-CLI generator, please read [The Cobra Generator README](https://github.com/spf13/cobra-cli/blob/master/README.md)
For complete details on using the Cobra library, please read the [The Cobra User Guide](user_guide.md).

View File

@ -35,6 +35,7 @@
- [OpenShift](https://www.openshift.com/)
- [Ory Hydra](https://github.com/ory/hydra)
- [Ory Kratos](https://github.com/ory/kratos)
- [Pixie](https://github.com/pixie-io/pixie)
- [Pouch](https://github.com/alibaba/pouch)
- [ProjectAtomic (enterprise)](http://www.projectatomic.io/)
- [Prototool](https://github.com/uber/prototool)

View File

@ -16,10 +16,12 @@ If you do not wish to use the default `completion` command, you can choose to
provide your own, which will take precedence over the default one. (This also provides
backwards-compatibility with programs that already have their own `completion` command.)
If you are using the generator, you can create a completion command by running
If you are using the `cobra-cli` generator,
which can be found at [spf13/cobra-cli](https://github.com/spf13/cobra-cli),
you can create a completion command by running
```bash
cobra add completion
cobra-cli add completion
```
and then modifying the generated `cmd/completion.go` file to look something like this
(writing the shell script to stdout allows the most flexible use):

View File

@ -29,10 +29,10 @@ func main() {
## Using the Cobra Generator
Cobra provides its own program that will create your application and add any
Cobra-CLI is its own program that will create your application and add any
commands you want. It's the easiest way to incorporate Cobra into your application.
For complete details on using the Cobra generator, please read [The Cobra Generator README](https://github.com/spf13/cobra/blob/master/cobra/README.md)
For complete details on using the Cobra generator, please refer to [The Cobra-CLI Generator README](https://github.com/spf13/cobra-cli/blob/master/README.md)
## Using the Cobra Library
@ -86,7 +86,7 @@ var (
userLicense string
rootCmd = &cobra.Command{
Use: "cobra",
Use: "cobra-cli",
Short: "A generator for Cobra based Applications",
Long: `Cobra is a CLI library for Go that empowers applications.
This application is a tool to generate the needed files

View File

@ -296,9 +296,7 @@ func (c *Client) dial(creds grpccredentials.TransportCredentials, dopts ...grpc.
dctx, cancel = context.WithTimeout(c.ctx, c.cfg.DialTimeout)
defer cancel() // TODO: Is this right for cases where grpc.WithBlock() is not set on the dial options?
}
initialEndpoints := strings.Join(c.cfg.Endpoints, ";")
target := fmt.Sprintf("%s://%p/#initially=[%s]", resolver.Schema, c, initialEndpoints)
target := fmt.Sprintf("%s://%p/%s", resolver.Schema, c, authority(c.Endpoints()[0]))
conn, err := grpc.DialContext(dctx, target, opts...)
if err != nil {
return nil, err
@ -306,6 +304,20 @@ func (c *Client) dial(creds grpccredentials.TransportCredentials, dopts ...grpc.
return conn, nil
}
func authority(endpoint string) string {
spl := strings.SplitN(endpoint, "://", 2)
if len(spl) < 2 {
if strings.HasPrefix(endpoint, "unix:") {
return endpoint[len("unix:"):]
}
if strings.HasPrefix(endpoint, "unixs:") {
return endpoint[len("unixs:"):]
}
return endpoint
}
return spl[1]
}
func (c *Client) credentialsForEndpoint(ep string) grpccredentials.TransportCredentials {
r := endpoint.RequiresCredentials(ep)
switch r {

168
vendor/golang.org/x/net/internal/socks/client.go generated vendored Normal file
View File

@ -0,0 +1,168 @@
// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package socks
import (
"context"
"errors"
"io"
"net"
"strconv"
"time"
)
var (
noDeadline = time.Time{}
aLongTimeAgo = time.Unix(1, 0)
)
func (d *Dialer) connect(ctx context.Context, c net.Conn, address string) (_ net.Addr, ctxErr error) {
host, port, err := splitHostPort(address)
if err != nil {
return nil, err
}
if deadline, ok := ctx.Deadline(); ok && !deadline.IsZero() {
c.SetDeadline(deadline)
defer c.SetDeadline(noDeadline)
}
if ctx != context.Background() {
errCh := make(chan error, 1)
done := make(chan struct{})
defer func() {
close(done)
if ctxErr == nil {
ctxErr = <-errCh
}
}()
go func() {
select {
case <-ctx.Done():
c.SetDeadline(aLongTimeAgo)
errCh <- ctx.Err()
case <-done:
errCh <- nil
}
}()
}
b := make([]byte, 0, 6+len(host)) // the size here is just an estimate
b = append(b, Version5)
if len(d.AuthMethods) == 0 || d.Authenticate == nil {
b = append(b, 1, byte(AuthMethodNotRequired))
} else {
ams := d.AuthMethods
if len(ams) > 255 {
return nil, errors.New("too many authentication methods")
}
b = append(b, byte(len(ams)))
for _, am := range ams {
b = append(b, byte(am))
}
}
if _, ctxErr = c.Write(b); ctxErr != nil {
return
}
if _, ctxErr = io.ReadFull(c, b[:2]); ctxErr != nil {
return
}
if b[0] != Version5 {
return nil, errors.New("unexpected protocol version " + strconv.Itoa(int(b[0])))
}
am := AuthMethod(b[1])
if am == AuthMethodNoAcceptableMethods {
return nil, errors.New("no acceptable authentication methods")
}
if d.Authenticate != nil {
if ctxErr = d.Authenticate(ctx, c, am); ctxErr != nil {
return
}
}
b = b[:0]
b = append(b, Version5, byte(d.cmd), 0)
if ip := net.ParseIP(host); ip != nil {
if ip4 := ip.To4(); ip4 != nil {
b = append(b, AddrTypeIPv4)
b = append(b, ip4...)
} else if ip6 := ip.To16(); ip6 != nil {
b = append(b, AddrTypeIPv6)
b = append(b, ip6...)
} else {
return nil, errors.New("unknown address type")
}
} else {
if len(host) > 255 {
return nil, errors.New("FQDN too long")
}
b = append(b, AddrTypeFQDN)
b = append(b, byte(len(host)))
b = append(b, host...)
}
b = append(b, byte(port>>8), byte(port))
if _, ctxErr = c.Write(b); ctxErr != nil {
return
}
if _, ctxErr = io.ReadFull(c, b[:4]); ctxErr != nil {
return
}
if b[0] != Version5 {
return nil, errors.New("unexpected protocol version " + strconv.Itoa(int(b[0])))
}
if cmdErr := Reply(b[1]); cmdErr != StatusSucceeded {
return nil, errors.New("unknown error " + cmdErr.String())
}
if b[2] != 0 {
return nil, errors.New("non-zero reserved field")
}
l := 2
var a Addr
switch b[3] {
case AddrTypeIPv4:
l += net.IPv4len
a.IP = make(net.IP, net.IPv4len)
case AddrTypeIPv6:
l += net.IPv6len
a.IP = make(net.IP, net.IPv6len)
case AddrTypeFQDN:
if _, err := io.ReadFull(c, b[:1]); err != nil {
return nil, err
}
l += int(b[0])
default:
return nil, errors.New("unknown address type " + strconv.Itoa(int(b[3])))
}
if cap(b) < l {
b = make([]byte, l)
} else {
b = b[:l]
}
if _, ctxErr = io.ReadFull(c, b); ctxErr != nil {
return
}
if a.IP != nil {
copy(a.IP, b)
} else {
a.Name = string(b[:len(b)-2])
}
a.Port = int(b[len(b)-2])<<8 | int(b[len(b)-1])
return &a, nil
}
func splitHostPort(address string) (string, int, error) {
host, port, err := net.SplitHostPort(address)
if err != nil {
return "", 0, err
}
portnum, err := strconv.Atoi(port)
if err != nil {
return "", 0, err
}
if 1 > portnum || portnum > 0xffff {
return "", 0, errors.New("port number out of range " + port)
}
return host, portnum, nil
}

317
vendor/golang.org/x/net/internal/socks/socks.go generated vendored Normal file
View File

@ -0,0 +1,317 @@
// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package socks provides a SOCKS version 5 client implementation.
//
// SOCKS protocol version 5 is defined in RFC 1928.
// Username/Password authentication for SOCKS version 5 is defined in
// RFC 1929.
package socks
import (
"context"
"errors"
"io"
"net"
"strconv"
)
// A Command represents a SOCKS command.
type Command int
func (cmd Command) String() string {
switch cmd {
case CmdConnect:
return "socks connect"
case cmdBind:
return "socks bind"
default:
return "socks " + strconv.Itoa(int(cmd))
}
}
// An AuthMethod represents a SOCKS authentication method.
type AuthMethod int
// A Reply represents a SOCKS command reply code.
type Reply int
func (code Reply) String() string {
switch code {
case StatusSucceeded:
return "succeeded"
case 0x01:
return "general SOCKS server failure"
case 0x02:
return "connection not allowed by ruleset"
case 0x03:
return "network unreachable"
case 0x04:
return "host unreachable"
case 0x05:
return "connection refused"
case 0x06:
return "TTL expired"
case 0x07:
return "command not supported"
case 0x08:
return "address type not supported"
default:
return "unknown code: " + strconv.Itoa(int(code))
}
}
// Wire protocol constants.
const (
Version5 = 0x05
AddrTypeIPv4 = 0x01
AddrTypeFQDN = 0x03
AddrTypeIPv6 = 0x04
CmdConnect Command = 0x01 // establishes an active-open forward proxy connection
cmdBind Command = 0x02 // establishes a passive-open forward proxy connection
AuthMethodNotRequired AuthMethod = 0x00 // no authentication required
AuthMethodUsernamePassword AuthMethod = 0x02 // use username/password
AuthMethodNoAcceptableMethods AuthMethod = 0xff // no acceptable authentication methods
StatusSucceeded Reply = 0x00
)
// An Addr represents a SOCKS-specific address.
// Either Name or IP is used exclusively.
type Addr struct {
Name string // fully-qualified domain name
IP net.IP
Port int
}
func (a *Addr) Network() string { return "socks" }
func (a *Addr) String() string {
if a == nil {
return "<nil>"
}
port := strconv.Itoa(a.Port)
if a.IP == nil {
return net.JoinHostPort(a.Name, port)
}
return net.JoinHostPort(a.IP.String(), port)
}
// A Conn represents a forward proxy connection.
type Conn struct {
net.Conn
boundAddr net.Addr
}
// BoundAddr returns the address assigned by the proxy server for
// connecting to the command target address from the proxy server.
func (c *Conn) BoundAddr() net.Addr {
if c == nil {
return nil
}
return c.boundAddr
}
// A Dialer holds SOCKS-specific options.
type Dialer struct {
cmd Command // either CmdConnect or cmdBind
proxyNetwork string // network between a proxy server and a client
proxyAddress string // proxy server address
// ProxyDial specifies the optional dial function for
// establishing the transport connection.
ProxyDial func(context.Context, string, string) (net.Conn, error)
// AuthMethods specifies the list of request authentication
// methods.
// If empty, SOCKS client requests only AuthMethodNotRequired.
AuthMethods []AuthMethod
// Authenticate specifies the optional authentication
// function. It must be non-nil when AuthMethods is not empty.
// It must return an error when the authentication is failed.
Authenticate func(context.Context, io.ReadWriter, AuthMethod) error
}
// DialContext connects to the provided address on the provided
// network.
//
// The returned error value may be a net.OpError. When the Op field of
// net.OpError contains "socks", the Source field contains a proxy
// server address and the Addr field contains a command target
// address.
//
// See func Dial of the net package of standard library for a
// description of the network and address parameters.
func (d *Dialer) DialContext(ctx context.Context, network, address string) (net.Conn, error) {
if err := d.validateTarget(network, address); err != nil {
proxy, dst, _ := d.pathAddrs(address)
return nil, &net.OpError{Op: d.cmd.String(), Net: network, Source: proxy, Addr: dst, Err: err}
}
if ctx == nil {
proxy, dst, _ := d.pathAddrs(address)
return nil, &net.OpError{Op: d.cmd.String(), Net: network, Source: proxy, Addr: dst, Err: errors.New("nil context")}
}
var err error
var c net.Conn
if d.ProxyDial != nil {
c, err = d.ProxyDial(ctx, d.proxyNetwork, d.proxyAddress)
} else {
var dd net.Dialer
c, err = dd.DialContext(ctx, d.proxyNetwork, d.proxyAddress)
}
if err != nil {
proxy, dst, _ := d.pathAddrs(address)
return nil, &net.OpError{Op: d.cmd.String(), Net: network, Source: proxy, Addr: dst, Err: err}
}
a, err := d.connect(ctx, c, address)
if err != nil {
c.Close()
proxy, dst, _ := d.pathAddrs(address)
return nil, &net.OpError{Op: d.cmd.String(), Net: network, Source: proxy, Addr: dst, Err: err}
}
return &Conn{Conn: c, boundAddr: a}, nil
}
// DialWithConn initiates a connection from SOCKS server to the target
// network and address using the connection c that is already
// connected to the SOCKS server.
//
// It returns the connection's local address assigned by the SOCKS
// server.
func (d *Dialer) DialWithConn(ctx context.Context, c net.Conn, network, address string) (net.Addr, error) {
if err := d.validateTarget(network, address); err != nil {
proxy, dst, _ := d.pathAddrs(address)
return nil, &net.OpError{Op: d.cmd.String(), Net: network, Source: proxy, Addr: dst, Err: err}
}
if ctx == nil {
proxy, dst, _ := d.pathAddrs(address)
return nil, &net.OpError{Op: d.cmd.String(), Net: network, Source: proxy, Addr: dst, Err: errors.New("nil context")}
}
a, err := d.connect(ctx, c, address)
if err != nil {
proxy, dst, _ := d.pathAddrs(address)
return nil, &net.OpError{Op: d.cmd.String(), Net: network, Source: proxy, Addr: dst, Err: err}
}
return a, nil
}
// Dial connects to the provided address on the provided network.
//
// Unlike DialContext, it returns a raw transport connection instead
// of a forward proxy connection.
//
// Deprecated: Use DialContext or DialWithConn instead.
func (d *Dialer) Dial(network, address string) (net.Conn, error) {
if err := d.validateTarget(network, address); err != nil {
proxy, dst, _ := d.pathAddrs(address)
return nil, &net.OpError{Op: d.cmd.String(), Net: network, Source: proxy, Addr: dst, Err: err}
}
var err error
var c net.Conn
if d.ProxyDial != nil {
c, err = d.ProxyDial(context.Background(), d.proxyNetwork, d.proxyAddress)
} else {
c, err = net.Dial(d.proxyNetwork, d.proxyAddress)
}
if err != nil {
proxy, dst, _ := d.pathAddrs(address)
return nil, &net.OpError{Op: d.cmd.String(), Net: network, Source: proxy, Addr: dst, Err: err}
}
if _, err := d.DialWithConn(context.Background(), c, network, address); err != nil {
c.Close()
return nil, err
}
return c, nil
}
func (d *Dialer) validateTarget(network, address string) error {
switch network {
case "tcp", "tcp6", "tcp4":
default:
return errors.New("network not implemented")
}
switch d.cmd {
case CmdConnect, cmdBind:
default:
return errors.New("command not implemented")
}
return nil
}
func (d *Dialer) pathAddrs(address string) (proxy, dst net.Addr, err error) {
for i, s := range []string{d.proxyAddress, address} {
host, port, err := splitHostPort(s)
if err != nil {
return nil, nil, err
}
a := &Addr{Port: port}
a.IP = net.ParseIP(host)
if a.IP == nil {
a.Name = host
}
if i == 0 {
proxy = a
} else {
dst = a
}
}
return
}
// NewDialer returns a new Dialer that dials through the provided
// proxy server's network and address.
func NewDialer(network, address string) *Dialer {
return &Dialer{proxyNetwork: network, proxyAddress: address, cmd: CmdConnect}
}
const (
authUsernamePasswordVersion = 0x01
authStatusSucceeded = 0x00
)
// UsernamePassword are the credentials for the username/password
// authentication method.
type UsernamePassword struct {
Username string
Password string
}
// Authenticate authenticates a pair of username and password with the
// proxy server.
func (up *UsernamePassword) Authenticate(ctx context.Context, rw io.ReadWriter, auth AuthMethod) error {
switch auth {
case AuthMethodNotRequired:
return nil
case AuthMethodUsernamePassword:
if len(up.Username) == 0 || len(up.Username) > 255 || len(up.Password) == 0 || len(up.Password) > 255 {
return errors.New("invalid username/password")
}
b := []byte{authUsernamePasswordVersion}
b = append(b, byte(len(up.Username)))
b = append(b, up.Username...)
b = append(b, byte(len(up.Password)))
b = append(b, up.Password...)
// TODO(mikio): handle IO deadlines and cancelation if
// necessary
if _, err := rw.Write(b); err != nil {
return err
}
if _, err := io.ReadFull(rw, b[:2]); err != nil {
return err
}
if b[0] != authUsernamePasswordVersion {
return errors.New("invalid username/password version")
}
if b[1] != authStatusSucceeded {
return errors.New("username/password authentication failed")
}
return nil
}
return errors.New("unsupported authentication method " + strconv.Itoa(int(auth)))
}

54
vendor/golang.org/x/net/proxy/dial.go generated vendored Normal file
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@ -0,0 +1,54 @@
// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package proxy
import (
"context"
"net"
)
// A ContextDialer dials using a context.
type ContextDialer interface {
DialContext(ctx context.Context, network, address string) (net.Conn, error)
}
// Dial works like DialContext on net.Dialer but using a dialer returned by FromEnvironment.
//
// The passed ctx is only used for returning the Conn, not the lifetime of the Conn.
//
// Custom dialers (registered via RegisterDialerType) that do not implement ContextDialer
// can leak a goroutine for as long as it takes the underlying Dialer implementation to timeout.
//
// A Conn returned from a successful Dial after the context has been cancelled will be immediately closed.
func Dial(ctx context.Context, network, address string) (net.Conn, error) {
d := FromEnvironment()
if xd, ok := d.(ContextDialer); ok {
return xd.DialContext(ctx, network, address)
}
return dialContext(ctx, d, network, address)
}
// WARNING: this can leak a goroutine for as long as the underlying Dialer implementation takes to timeout
// A Conn returned from a successful Dial after the context has been cancelled will be immediately closed.
func dialContext(ctx context.Context, d Dialer, network, address string) (net.Conn, error) {
var (
conn net.Conn
done = make(chan struct{}, 1)
err error
)
go func() {
conn, err = d.Dial(network, address)
close(done)
if conn != nil && ctx.Err() != nil {
conn.Close()
}
}()
select {
case <-ctx.Done():
err = ctx.Err()
case <-done:
}
return conn, err
}

31
vendor/golang.org/x/net/proxy/direct.go generated vendored Normal file
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@ -0,0 +1,31 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package proxy
import (
"context"
"net"
)
type direct struct{}
// Direct implements Dialer by making network connections directly using net.Dial or net.DialContext.
var Direct = direct{}
var (
_ Dialer = Direct
_ ContextDialer = Direct
)
// Dial directly invokes net.Dial with the supplied parameters.
func (direct) Dial(network, addr string) (net.Conn, error) {
return net.Dial(network, addr)
}
// DialContext instantiates a net.Dialer and invokes its DialContext receiver with the supplied parameters.
func (direct) DialContext(ctx context.Context, network, addr string) (net.Conn, error) {
var d net.Dialer
return d.DialContext(ctx, network, addr)
}

155
vendor/golang.org/x/net/proxy/per_host.go generated vendored Normal file
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@ -0,0 +1,155 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package proxy
import (
"context"
"net"
"strings"
)
// A PerHost directs connections to a default Dialer unless the host name
// requested matches one of a number of exceptions.
type PerHost struct {
def, bypass Dialer
bypassNetworks []*net.IPNet
bypassIPs []net.IP
bypassZones []string
bypassHosts []string
}
// NewPerHost returns a PerHost Dialer that directs connections to either
// defaultDialer or bypass, depending on whether the connection matches one of
// the configured rules.
func NewPerHost(defaultDialer, bypass Dialer) *PerHost {
return &PerHost{
def: defaultDialer,
bypass: bypass,
}
}
// Dial connects to the address addr on the given network through either
// defaultDialer or bypass.
func (p *PerHost) Dial(network, addr string) (c net.Conn, err error) {
host, _, err := net.SplitHostPort(addr)
if err != nil {
return nil, err
}
return p.dialerForRequest(host).Dial(network, addr)
}
// DialContext connects to the address addr on the given network through either
// defaultDialer or bypass.
func (p *PerHost) DialContext(ctx context.Context, network, addr string) (c net.Conn, err error) {
host, _, err := net.SplitHostPort(addr)
if err != nil {
return nil, err
}
d := p.dialerForRequest(host)
if x, ok := d.(ContextDialer); ok {
return x.DialContext(ctx, network, addr)
}
return dialContext(ctx, d, network, addr)
}
func (p *PerHost) dialerForRequest(host string) Dialer {
if ip := net.ParseIP(host); ip != nil {
for _, net := range p.bypassNetworks {
if net.Contains(ip) {
return p.bypass
}
}
for _, bypassIP := range p.bypassIPs {
if bypassIP.Equal(ip) {
return p.bypass
}
}
return p.def
}
for _, zone := range p.bypassZones {
if strings.HasSuffix(host, zone) {
return p.bypass
}
if host == zone[1:] {
// For a zone ".example.com", we match "example.com"
// too.
return p.bypass
}
}
for _, bypassHost := range p.bypassHosts {
if bypassHost == host {
return p.bypass
}
}
return p.def
}
// AddFromString parses a string that contains comma-separated values
// specifying hosts that should use the bypass proxy. Each value is either an
// IP address, a CIDR range, a zone (*.example.com) or a host name
// (localhost). A best effort is made to parse the string and errors are
// ignored.
func (p *PerHost) AddFromString(s string) {
hosts := strings.Split(s, ",")
for _, host := range hosts {
host = strings.TrimSpace(host)
if len(host) == 0 {
continue
}
if strings.Contains(host, "/") {
// We assume that it's a CIDR address like 127.0.0.0/8
if _, net, err := net.ParseCIDR(host); err == nil {
p.AddNetwork(net)
}
continue
}
if ip := net.ParseIP(host); ip != nil {
p.AddIP(ip)
continue
}
if strings.HasPrefix(host, "*.") {
p.AddZone(host[1:])
continue
}
p.AddHost(host)
}
}
// AddIP specifies an IP address that will use the bypass proxy. Note that
// this will only take effect if a literal IP address is dialed. A connection
// to a named host will never match an IP.
func (p *PerHost) AddIP(ip net.IP) {
p.bypassIPs = append(p.bypassIPs, ip)
}
// AddNetwork specifies an IP range that will use the bypass proxy. Note that
// this will only take effect if a literal IP address is dialed. A connection
// to a named host will never match.
func (p *PerHost) AddNetwork(net *net.IPNet) {
p.bypassNetworks = append(p.bypassNetworks, net)
}
// AddZone specifies a DNS suffix that will use the bypass proxy. A zone of
// "example.com" matches "example.com" and all of its subdomains.
func (p *PerHost) AddZone(zone string) {
if strings.HasSuffix(zone, ".") {
zone = zone[:len(zone)-1]
}
if !strings.HasPrefix(zone, ".") {
zone = "." + zone
}
p.bypassZones = append(p.bypassZones, zone)
}
// AddHost specifies a host name that will use the bypass proxy.
func (p *PerHost) AddHost(host string) {
if strings.HasSuffix(host, ".") {
host = host[:len(host)-1]
}
p.bypassHosts = append(p.bypassHosts, host)
}

149
vendor/golang.org/x/net/proxy/proxy.go generated vendored Normal file
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@ -0,0 +1,149 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package proxy provides support for a variety of protocols to proxy network
// data.
package proxy // import "golang.org/x/net/proxy"
import (
"errors"
"net"
"net/url"
"os"
"sync"
)
// A Dialer is a means to establish a connection.
// Custom dialers should also implement ContextDialer.
type Dialer interface {
// Dial connects to the given address via the proxy.
Dial(network, addr string) (c net.Conn, err error)
}
// Auth contains authentication parameters that specific Dialers may require.
type Auth struct {
User, Password string
}
// FromEnvironment returns the dialer specified by the proxy-related
// variables in the environment and makes underlying connections
// directly.
func FromEnvironment() Dialer {
return FromEnvironmentUsing(Direct)
}
// FromEnvironmentUsing returns the dialer specify by the proxy-related
// variables in the environment and makes underlying connections
// using the provided forwarding Dialer (for instance, a *net.Dialer
// with desired configuration).
func FromEnvironmentUsing(forward Dialer) Dialer {
allProxy := allProxyEnv.Get()
if len(allProxy) == 0 {
return forward
}
proxyURL, err := url.Parse(allProxy)
if err != nil {
return forward
}
proxy, err := FromURL(proxyURL, forward)
if err != nil {
return forward
}
noProxy := noProxyEnv.Get()
if len(noProxy) == 0 {
return proxy
}
perHost := NewPerHost(proxy, forward)
perHost.AddFromString(noProxy)
return perHost
}
// proxySchemes is a map from URL schemes to a function that creates a Dialer
// from a URL with such a scheme.
var proxySchemes map[string]func(*url.URL, Dialer) (Dialer, error)
// RegisterDialerType takes a URL scheme and a function to generate Dialers from
// a URL with that scheme and a forwarding Dialer. Registered schemes are used
// by FromURL.
func RegisterDialerType(scheme string, f func(*url.URL, Dialer) (Dialer, error)) {
if proxySchemes == nil {
proxySchemes = make(map[string]func(*url.URL, Dialer) (Dialer, error))
}
proxySchemes[scheme] = f
}
// FromURL returns a Dialer given a URL specification and an underlying
// Dialer for it to make network requests.
func FromURL(u *url.URL, forward Dialer) (Dialer, error) {
var auth *Auth
if u.User != nil {
auth = new(Auth)
auth.User = u.User.Username()
if p, ok := u.User.Password(); ok {
auth.Password = p
}
}
switch u.Scheme {
case "socks5", "socks5h":
addr := u.Hostname()
port := u.Port()
if port == "" {
port = "1080"
}
return SOCKS5("tcp", net.JoinHostPort(addr, port), auth, forward)
}
// If the scheme doesn't match any of the built-in schemes, see if it
// was registered by another package.
if proxySchemes != nil {
if f, ok := proxySchemes[u.Scheme]; ok {
return f(u, forward)
}
}
return nil, errors.New("proxy: unknown scheme: " + u.Scheme)
}
var (
allProxyEnv = &envOnce{
names: []string{"ALL_PROXY", "all_proxy"},
}
noProxyEnv = &envOnce{
names: []string{"NO_PROXY", "no_proxy"},
}
)
// envOnce looks up an environment variable (optionally by multiple
// names) once. It mitigates expensive lookups on some platforms
// (e.g. Windows).
// (Borrowed from net/http/transport.go)
type envOnce struct {
names []string
once sync.Once
val string
}
func (e *envOnce) Get() string {
e.once.Do(e.init)
return e.val
}
func (e *envOnce) init() {
for _, n := range e.names {
e.val = os.Getenv(n)
if e.val != "" {
return
}
}
}
// reset is used by tests
func (e *envOnce) reset() {
e.once = sync.Once{}
e.val = ""
}

42
vendor/golang.org/x/net/proxy/socks5.go generated vendored Normal file
View File

@ -0,0 +1,42 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package proxy
import (
"context"
"net"
"golang.org/x/net/internal/socks"
)
// SOCKS5 returns a Dialer that makes SOCKSv5 connections to the given
// address with an optional username and password.
// See RFC 1928 and RFC 1929.
func SOCKS5(network, address string, auth *Auth, forward Dialer) (Dialer, error) {
d := socks.NewDialer(network, address)
if forward != nil {
if f, ok := forward.(ContextDialer); ok {
d.ProxyDial = func(ctx context.Context, network string, address string) (net.Conn, error) {
return f.DialContext(ctx, network, address)
}
} else {
d.ProxyDial = func(ctx context.Context, network string, address string) (net.Conn, error) {
return dialContext(ctx, forward, network, address)
}
}
}
if auth != nil {
up := socks.UsernamePassword{
Username: auth.User,
Password: auth.Password,
}
d.AuthMethods = []socks.AuthMethod{
socks.AuthMethodNotRequired,
socks.AuthMethodUsernamePassword,
}
d.Authenticate = up.Authenticate
}
return d, nil
}

View File

@ -597,6 +597,7 @@ ccflags="$@"
$2 ~ /^DEVLINK_/ ||
$2 ~ /^ETHTOOL_/ ||
$2 ~ /^LWTUNNEL_IP/ ||
$2 ~ /^ITIMER_/ ||
$2 !~ "WMESGLEN" &&
$2 ~ /^W[A-Z0-9]+$/ ||
$2 ~/^PPPIOC/ ||

View File

@ -14,6 +14,7 @@ package unix
import (
"encoding/binary"
"syscall"
"time"
"unsafe"
)
@ -2314,11 +2315,56 @@ type RemoteIovec struct {
//sys shmdt(addr uintptr) (err error)
//sys shmget(key int, size int, flag int) (id int, err error)
//sys getitimer(which int, currValue *Itimerval) (err error)
//sys setitimer(which int, newValue *Itimerval, oldValue *Itimerval) (err error)
// MakeItimerval creates an Itimerval from interval and value durations.
func MakeItimerval(interval, value time.Duration) Itimerval {
return Itimerval{
Interval: NsecToTimeval(interval.Nanoseconds()),
Value: NsecToTimeval(value.Nanoseconds()),
}
}
// A value which may be passed to the which parameter for Getitimer and
// Setitimer.
type ItimerWhich int
// Possible which values for Getitimer and Setitimer.
const (
ItimerReal ItimerWhich = ITIMER_REAL
ItimerVirtual ItimerWhich = ITIMER_VIRTUAL
ItimerProf ItimerWhich = ITIMER_PROF
)
// Getitimer wraps getitimer(2) to return the current value of the timer
// specified by which.
func Getitimer(which ItimerWhich) (Itimerval, error) {
var it Itimerval
if err := getitimer(int(which), &it); err != nil {
return Itimerval{}, err
}
return it, nil
}
// Setitimer wraps setitimer(2) to arm or disarm the timer specified by which.
// It returns the previous value of the timer.
//
// If the Itimerval argument is the zero value, the timer will be disarmed.
func Setitimer(which ItimerWhich, it Itimerval) (Itimerval, error) {
var prev Itimerval
if err := setitimer(int(which), &it, &prev); err != nil {
return Itimerval{}, err
}
return prev, nil
}
/*
* Unimplemented
*/
// AfsSyscall
// Alarm
// ArchPrctl
// Brk
// ClockNanosleep
@ -2334,7 +2380,6 @@ type RemoteIovec struct {
// GetMempolicy
// GetRobustList
// GetThreadArea
// Getitimer
// Getpmsg
// IoCancel
// IoDestroy

14
vendor/golang.org/x/sys/unix/syscall_linux_alarm.go generated vendored Normal file
View File

@ -0,0 +1,14 @@
// Copyright 2022 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build linux && (386 || amd64 || mips || mipsle || mips64 || mipsle || ppc64 || ppc64le || ppc || s390x || sparc64)
// +build linux
// +build 386 amd64 mips mipsle mips64 mipsle ppc64 ppc64le ppc s390x sparc64
package unix
// SYS_ALARM is not defined on arm or riscv, but is available for other GOARCH
// values.
//sys Alarm(seconds uint) (remaining uint, err error)

View File

@ -38,7 +38,8 @@ const (
AF_KEY = 0xf
AF_LLC = 0x1a
AF_LOCAL = 0x1
AF_MAX = 0x2d
AF_MAX = 0x2e
AF_MCTP = 0x2d
AF_MPLS = 0x1c
AF_NETBEUI = 0xd
AF_NETLINK = 0x10
@ -1267,6 +1268,9 @@ const (
IP_XFRM_POLICY = 0x11
ISOFS_SUPER_MAGIC = 0x9660
ISTRIP = 0x20
ITIMER_PROF = 0x2
ITIMER_REAL = 0x0
ITIMER_VIRTUAL = 0x1
IUTF8 = 0x4000
IXANY = 0x800
JFFS2_SUPER_MAGIC = 0x72b6

View File

@ -2032,3 +2032,23 @@ func shmget(key int, size int, flag int) (id int, err error) {
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func getitimer(which int, currValue *Itimerval) (err error) {
_, _, e1 := Syscall(SYS_GETITIMER, uintptr(which), uintptr(unsafe.Pointer(currValue)), 0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func setitimer(which int, newValue *Itimerval, oldValue *Itimerval) (err error) {
_, _, e1 := Syscall(SYS_SETITIMER, uintptr(which), uintptr(unsafe.Pointer(newValue)), uintptr(unsafe.Pointer(oldValue)))
if e1 != 0 {
err = errnoErr(e1)
}
return
}

View File

@ -1,4 +1,4 @@
// go run mksyscall.go -l32 -tags linux,386 syscall_linux.go syscall_linux_386.go
// go run mksyscall.go -l32 -tags linux,386 syscall_linux.go syscall_linux_386.go syscall_linux_alarm.go
// Code generated by the command above; see README.md. DO NOT EDIT.
//go:build linux && 386
@ -524,3 +524,14 @@ func utimes(path string, times *[2]Timeval) (err error) {
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Alarm(seconds uint) (remaining uint, err error) {
r0, _, e1 := Syscall(SYS_ALARM, uintptr(seconds), 0, 0)
remaining = uint(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}

View File

@ -1,4 +1,4 @@
// go run mksyscall.go -tags linux,amd64 syscall_linux.go syscall_linux_amd64.go
// go run mksyscall.go -tags linux,amd64 syscall_linux.go syscall_linux_amd64.go syscall_linux_alarm.go
// Code generated by the command above; see README.md. DO NOT EDIT.
//go:build linux && amd64
@ -691,3 +691,14 @@ func kexecFileLoad(kernelFd int, initrdFd int, cmdlineLen int, cmdline string, f
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Alarm(seconds uint) (remaining uint, err error) {
r0, _, e1 := Syscall(SYS_ALARM, uintptr(seconds), 0, 0)
remaining = uint(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}

View File

@ -1,4 +1,4 @@
// go run mksyscall.go -b32 -arm -tags linux,mips syscall_linux.go syscall_linux_mipsx.go
// go run mksyscall.go -b32 -arm -tags linux,mips syscall_linux.go syscall_linux_mipsx.go syscall_linux_alarm.go
// Code generated by the command above; see README.md. DO NOT EDIT.
//go:build linux && mips
@ -702,3 +702,14 @@ func setrlimit(resource int, rlim *rlimit32) (err error) {
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Alarm(seconds uint) (remaining uint, err error) {
r0, _, e1 := Syscall(SYS_ALARM, uintptr(seconds), 0, 0)
remaining = uint(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}

View File

@ -1,4 +1,4 @@
// go run mksyscall.go -tags linux,mips64 syscall_linux.go syscall_linux_mips64x.go
// go run mksyscall.go -tags linux,mips64 syscall_linux.go syscall_linux_mips64x.go syscall_linux_alarm.go
// Code generated by the command above; see README.md. DO NOT EDIT.
//go:build linux && mips64
@ -696,3 +696,14 @@ func stat(path string, st *stat_t) (err error) {
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Alarm(seconds uint) (remaining uint, err error) {
r0, _, e1 := Syscall(SYS_ALARM, uintptr(seconds), 0, 0)
remaining = uint(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}

View File

@ -1,4 +1,4 @@
// go run mksyscall.go -l32 -arm -tags linux,mipsle syscall_linux.go syscall_linux_mipsx.go
// go run mksyscall.go -l32 -arm -tags linux,mipsle syscall_linux.go syscall_linux_mipsx.go syscall_linux_alarm.go
// Code generated by the command above; see README.md. DO NOT EDIT.
//go:build linux && mipsle
@ -702,3 +702,14 @@ func setrlimit(resource int, rlim *rlimit32) (err error) {
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Alarm(seconds uint) (remaining uint, err error) {
r0, _, e1 := Syscall(SYS_ALARM, uintptr(seconds), 0, 0)
remaining = uint(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}

View File

@ -1,4 +1,4 @@
// go run mksyscall.go -b32 -tags linux,ppc syscall_linux.go syscall_linux_ppc.go
// go run mksyscall.go -b32 -tags linux,ppc syscall_linux.go syscall_linux_ppc.go syscall_linux_alarm.go
// Code generated by the command above; see README.md. DO NOT EDIT.
//go:build linux && ppc
@ -707,3 +707,14 @@ func kexecFileLoad(kernelFd int, initrdFd int, cmdlineLen int, cmdline string, f
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Alarm(seconds uint) (remaining uint, err error) {
r0, _, e1 := Syscall(SYS_ALARM, uintptr(seconds), 0, 0)
remaining = uint(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}

View File

@ -1,4 +1,4 @@
// go run mksyscall.go -tags linux,ppc64 syscall_linux.go syscall_linux_ppc64x.go
// go run mksyscall.go -tags linux,ppc64 syscall_linux.go syscall_linux_ppc64x.go syscall_linux_alarm.go
// Code generated by the command above; see README.md. DO NOT EDIT.
//go:build linux && ppc64
@ -753,3 +753,14 @@ func kexecFileLoad(kernelFd int, initrdFd int, cmdlineLen int, cmdline string, f
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Alarm(seconds uint) (remaining uint, err error) {
r0, _, e1 := Syscall(SYS_ALARM, uintptr(seconds), 0, 0)
remaining = uint(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}

View File

@ -1,4 +1,4 @@
// go run mksyscall.go -tags linux,ppc64le syscall_linux.go syscall_linux_ppc64x.go
// go run mksyscall.go -tags linux,ppc64le syscall_linux.go syscall_linux_ppc64x.go syscall_linux_alarm.go
// Code generated by the command above; see README.md. DO NOT EDIT.
//go:build linux && ppc64le
@ -753,3 +753,14 @@ func kexecFileLoad(kernelFd int, initrdFd int, cmdlineLen int, cmdline string, f
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Alarm(seconds uint) (remaining uint, err error) {
r0, _, e1 := Syscall(SYS_ALARM, uintptr(seconds), 0, 0)
remaining = uint(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}

View File

@ -1,4 +1,4 @@
// go run mksyscall.go -tags linux,s390x syscall_linux.go syscall_linux_s390x.go
// go run mksyscall.go -tags linux,s390x syscall_linux.go syscall_linux_s390x.go syscall_linux_alarm.go
// Code generated by the command above; see README.md. DO NOT EDIT.
//go:build linux && s390x
@ -533,3 +533,14 @@ func kexecFileLoad(kernelFd int, initrdFd int, cmdlineLen int, cmdline string, f
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Alarm(seconds uint) (remaining uint, err error) {
r0, _, e1 := Syscall(SYS_ALARM, uintptr(seconds), 0, 0)
remaining = uint(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}

View File

@ -1,4 +1,4 @@
// go run mksyscall.go -tags linux,sparc64 syscall_linux.go syscall_linux_sparc64.go
// go run mksyscall.go -tags linux,sparc64 syscall_linux.go syscall_linux_sparc64.go syscall_linux_alarm.go
// Code generated by the command above; see README.md. DO NOT EDIT.
//go:build linux && sparc64
@ -697,3 +697,14 @@ func utimes(path string, times *[2]Timeval) (err error) {
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Alarm(seconds uint) (remaining uint, err error) {
r0, _, e1 := Syscall(SYS_ALARM, uintptr(seconds), 0, 0)
remaining = uint(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}

View File

@ -24,6 +24,11 @@ type ItimerSpec struct {
Value Timespec
}
type Itimerval struct {
Interval Timeval
Value Timeval
}
const (
TIME_OK = 0x0
TIME_INS = 0x1

View File

@ -306,15 +306,27 @@ func (lim *Limiter) SetBurstAt(now time.Time, newBurst int) {
// reserveN returns Reservation, not *Reservation, to avoid allocation in AllowN and WaitN.
func (lim *Limiter) reserveN(now time.Time, n int, maxFutureReserve time.Duration) Reservation {
lim.mu.Lock()
defer lim.mu.Unlock()
if lim.limit == Inf {
lim.mu.Unlock()
return Reservation{
ok: true,
lim: lim,
tokens: n,
timeToAct: now,
}
} else if lim.limit == 0 {
var ok bool
if lim.burst >= n {
ok = true
lim.burst -= n
}
return Reservation{
ok: ok,
lim: lim,
tokens: lim.burst,
timeToAct: now,
}
}
now, last, tokens := lim.advance(now)
@ -351,7 +363,6 @@ func (lim *Limiter) reserveN(now time.Time, n int, maxFutureReserve time.Duratio
lim.last = last
}
lim.mu.Unlock()
return r
}
@ -377,6 +388,9 @@ func (lim *Limiter) advance(now time.Time) (newNow time.Time, newLast time.Time,
// durationFromTokens is a unit conversion function from the number of tokens to the duration
// of time it takes to accumulate them at a rate of limit tokens per second.
func (limit Limit) durationFromTokens(tokens float64) time.Duration {
if limit <= 0 {
return InfDuration
}
seconds := tokens / float64(limit)
return time.Duration(float64(time.Second) * seconds)
}
@ -384,5 +398,8 @@ func (limit Limit) durationFromTokens(tokens float64) time.Duration {
// tokensFromDuration is a unit conversion function from a time duration to the number of tokens
// which could be accumulated during that duration at a rate of limit tokens per second.
func (limit Limit) tokensFromDuration(d time.Duration) float64 {
if limit <= 0 {
return 0
}
return d.Seconds() * float64(limit)
}

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