mirror of
https://github.com/talent-plan/tinykv.git
synced 2025-01-13 13:50:43 +08:00
5e089a2cd1
Signed-off-by: Connor <zbk602423539@gmail.com> Co-authored-by: Nick Cameron <nrc@ncameron.org> Co-authored-by: linning <linningde25@gmail.com> Co-authored-by: YangKeao <keao.yang@yahoo.com> Co-authored-by: andylokandy <andylokandy@hotmail.com> Co-authored-by: Iosmanthus Teng <myosmanthustree@gmail.com>
62 lines
1.3 KiB
Go
62 lines
1.3 KiB
Go
// Copyright 2018 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,
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package tempurl
|
|
|
|
import (
|
|
"fmt"
|
|
"net"
|
|
"sync"
|
|
"time"
|
|
|
|
"github.com/pingcap/log"
|
|
"go.uber.org/zap"
|
|
)
|
|
|
|
var (
|
|
testAddrMutex sync.Mutex
|
|
testAddrMap = make(map[string]struct{})
|
|
)
|
|
|
|
// Alloc allocates a local URL for testing.
|
|
func Alloc() string {
|
|
for i := 0; i < 10; i++ {
|
|
if u := tryAllocTestURL(); u != "" {
|
|
return u
|
|
}
|
|
time.Sleep(time.Second)
|
|
}
|
|
log.Fatal("failed to alloc test URL")
|
|
return ""
|
|
}
|
|
|
|
func tryAllocTestURL() string {
|
|
l, err := net.Listen("tcp", "127.0.0.1:0")
|
|
if err != nil {
|
|
log.Fatal("listen failed", zap.Error(err))
|
|
}
|
|
addr := fmt.Sprintf("http://%s", l.Addr())
|
|
err = l.Close()
|
|
if err != nil {
|
|
log.Fatal("close failed", zap.Error(err))
|
|
}
|
|
|
|
testAddrMutex.Lock()
|
|
defer testAddrMutex.Unlock()
|
|
if _, ok := testAddrMap[addr]; ok {
|
|
return ""
|
|
}
|
|
testAddrMap[addr] = struct{}{}
|
|
return addr
|
|
}
|