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
|
package main
import (
"github.com/anon55555/mt"
"github.com/yuin/gopher-lua"
"reflect"
"time"
)
func doPoll(l *lua.LState, clients []*Client) (*Client, *mt.Pkt, bool) {
var timeout time.Duration
hasTimeout := false
if l.GetTop() > 1 {
timeout = time.Duration(float64(l.ToNumber(2)) * float64(time.Second))
hasTimeout = true
}
cases := make([]reflect.SelectCase, 0, len(clients)+2)
for _, client := range clients {
if client.state != csConnected {
continue
}
cases = append(cases, reflect.SelectCase{
Dir: reflect.SelectRecv,
Chan: reflect.ValueOf(client.queue),
})
}
offset := len(cases)
if offset < 1 {
return nil, nil, false
}
cases = append(cases, reflect.SelectCase{
Dir: reflect.SelectRecv,
Chan: reflect.ValueOf(signalChannel()),
})
if hasTimeout {
cases = append(cases, reflect.SelectCase{
Dir: reflect.SelectRecv,
Chan: reflect.ValueOf(time.After(timeout)),
})
}
idx, value, ok := reflect.Select(cases)
if idx >= offset {
return nil, nil, true
}
client := clients[idx]
var pkt *mt.Pkt = nil
if ok {
pkt = value.Interface().(*mt.Pkt)
} else {
client.state = csDisconnected
}
return client, pkt, false
}
|
