/
streamserver.go
84 lines (72 loc) · 2.17 KB
/
streamserver.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
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
// Copyright (C) 2014-2018 Goodrain Co., Ltd.
// RAINBOND, Application Management Platform
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version. For any non-GPL usage of Rainbond,
// one or multiple Commercial Licenses authorized by Goodrain Co., Ltd.
// must be obtained first.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package util
import (
"net"
"sync"
"time"
"golang.org/x/net/context"
)
type Config struct {
PacketSendChanLimit uint32 // the limit of packet send channel
PacketReceiveChanLimit uint32 // the limit of packet receive channel
}
type Server struct {
config *Config // server configuration
callback ConnCallback // message callbacks in connection
exitChan chan struct{} // notify all goroutines to shutdown
waitGroup *sync.WaitGroup // wait for all goroutines
ctx context.Context
}
// NewServer creates a server
func NewServer(config *Config, callback ConnCallback, ctx context.Context) *Server {
return &Server{
config: config,
callback: callback,
exitChan: make(chan struct{}),
waitGroup: &sync.WaitGroup{},
ctx: ctx,
}
}
// Start starts service
func (s *Server) Start(listener *net.TCPListener, acceptTimeout time.Duration) {
s.waitGroup.Add(1)
defer func() {
listener.Close()
s.waitGroup.Done()
}()
for {
select {
case <-s.exitChan:
return
default:
}
listener.SetDeadline(time.Now().Add(acceptTimeout))
conn, err := listener.AcceptTCP()
if err != nil {
continue
}
s.waitGroup.Add(1)
go func() {
newConn(conn, s, s.ctx).Do()
s.waitGroup.Done()
}()
}
}
// Stop stops service
func (s *Server) Stop() {
close(s.exitChan)
s.waitGroup.Wait()
}