-
Notifications
You must be signed in to change notification settings - Fork 698
/
wait_port_ready.go
39 lines (35 loc) · 1.13 KB
/
wait_port_ready.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
// Copyright 2020 The SQLFlow Authors. All rights reserved.
// 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 server
import (
"net"
"time"
)
func serverIsReady(addr string, timeout time.Duration) bool {
conn, err := net.DialTimeout("tcp", addr, timeout)
if err != nil {
return false
}
err = conn.Close()
return err == nil
}
// WaitPortReady will wait until the tcp address like ip:port can be connected from client.
func WaitPortReady(addr string, timeout time.Duration) {
// Set default timeout to
if timeout == 0 {
timeout = time.Duration(1) * time.Second
}
for !serverIsReady(addr, timeout) {
time.Sleep(1 * time.Second)
}
}