tidb portgenerator 代码
文件路径：/cmd/portgenerator/portgenerator.go
/ Copyright 2021 PingCAP, 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 main
import (
"flag"
"fmt"
"github.com/phayes/freeport"
"github.com/pingcap/log"
"go.uber.org/zap"
)
var (
count uint
)
func init() {
flag.UintVar(&count, "count", 1, "number of generated ports")
}
func generatePorts(count int) []int {
var (
err error
ports []int
)
if ports, err = freeport.GetFreePorts(count); err != nil {
log.Fatal("no more free ports", zap.Error(err))
}
return ports
}
func main() {
flag.Parse()
for _, port := range generatePorts(int(count)) {
fmt.Println(port)
}
}