mirror of
https://github.com/prometheus/prometheus.git
synced 2024-12-28 15:09:39 -08:00
0393b188c9
* Trace remote read Signed-off-by: vas <vasily.sliouniaev@jet.com> * Use jaeger Signed-off-by: vas <vasily.sliouniaev@jet.com>
88 lines
2.3 KiB
Go
88 lines
2.3 KiB
Go
// Copyright (c) 2017 Uber Technologies, Inc.
|
|
//
|
|
// 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 utils
|
|
|
|
import (
|
|
"encoding/binary"
|
|
"errors"
|
|
"net"
|
|
"strconv"
|
|
"strings"
|
|
"time"
|
|
)
|
|
|
|
var (
|
|
// ErrEmptyIP an error for empty ip strings
|
|
ErrEmptyIP = errors.New("empty string given for ip")
|
|
|
|
// ErrNotHostColonPort an error for invalid host port string
|
|
ErrNotHostColonPort = errors.New("expecting host:port")
|
|
|
|
// ErrNotFourOctets an error for the wrong number of octets after splitting a string
|
|
ErrNotFourOctets = errors.New("Wrong number of octets")
|
|
)
|
|
|
|
// ParseIPToUint32 converts a string ip (e.g. "x.y.z.w") to an uint32
|
|
func ParseIPToUint32(ip string) (uint32, error) {
|
|
if ip == "" {
|
|
return 0, ErrEmptyIP
|
|
}
|
|
|
|
if ip == "localhost" {
|
|
return 127<<24 | 1, nil
|
|
}
|
|
|
|
octets := strings.Split(ip, ".")
|
|
if len(octets) != 4 {
|
|
return 0, ErrNotFourOctets
|
|
}
|
|
|
|
var intIP uint32
|
|
for i := 0; i < 4; i++ {
|
|
octet, err := strconv.Atoi(octets[i])
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
intIP = (intIP << 8) | uint32(octet)
|
|
}
|
|
|
|
return intIP, nil
|
|
}
|
|
|
|
// ParsePort converts port number from string to uin16
|
|
func ParsePort(portString string) (uint16, error) {
|
|
port, err := strconv.ParseUint(portString, 10, 16)
|
|
return uint16(port), err
|
|
}
|
|
|
|
// PackIPAsUint32 packs an IPv4 as uint32
|
|
func PackIPAsUint32(ip net.IP) uint32 {
|
|
if ipv4 := ip.To4(); ipv4 != nil {
|
|
return binary.BigEndian.Uint32(ipv4)
|
|
}
|
|
return 0
|
|
}
|
|
|
|
// TimeToMicrosecondsSinceEpochInt64 converts Go time.Time to a long
|
|
// representing time since epoch in microseconds, which is used expected
|
|
// in the Jaeger spans encoded as Thrift.
|
|
func TimeToMicrosecondsSinceEpochInt64(t time.Time) int64 {
|
|
// ^^^ Passing time.Time by value is faster than passing a pointer!
|
|
// BenchmarkTimeByValue-8 2000000000 1.37 ns/op
|
|
// BenchmarkTimeByPtr-8 2000000000 1.98 ns/op
|
|
|
|
return t.UnixNano() / 1000
|
|
}
|