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
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
|
package sctp
import (
"fmt"
"io"
"math/rand"
"sync"
"testing"
"time"
)
const (
STREAM_TEST_CLIENTS = 128
STREAM_TEST_STREAMS = 11
)
func TestStreams(t *testing.T) {
var rMu sync.Mutex
r := rand.New(rand.NewSource(time.Now().UnixNano()))
randomStr := func(strlen int) string {
const chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
result := make([]byte, strlen)
rMu.Lock()
for i := range result {
result[i] = chars[r.Intn(len(chars))]
}
rMu.Unlock()
return string(result)
}
addr, _ := ResolveSCTPAddr("sctp", "127.0.0.1:0")
ln, err := ListenSCTPExt("sctp", addr, InitMsg{NumOstreams: STREAM_TEST_STREAMS, MaxInstreams: STREAM_TEST_STREAMS})
if err != nil {
t.Fatalf("failed to listen: %v", err)
}
addr = ln.Addr().(*SCTPAddr)
t.Logf("Listen on %s", ln.Addr())
go func() {
for {
c, err := ln.Accept()
sconn := c.(*SCTPConn)
if err != nil {
t.Errorf("failed to accept: %v", err)
return
}
defer sconn.Close()
sconn.SubscribeEvents(SCTP_EVENT_DATA_IO)
go func() {
totalrcvd := 0
for {
buf := make([]byte, 512)
n, info, err := sconn.SCTPRead(buf)
if err != nil {
if err == io.EOF || err == io.ErrUnexpectedEOF {
if n == 0 {
break
}
t.Logf("EOF on server connection. Total bytes received: %d, bytes received: %d", totalrcvd, n)
} else {
t.Errorf("Server connection read err: %v. Total bytes received: %d, bytes received: %d", err, totalrcvd, n)
return
}
}
t.Logf("server read: info: %+v, payload: %s", info, string(buf[:n]))
n, err = sconn.SCTPWrite(buf[:n], info)
if err != nil {
t.Error(err)
return
}
}
}()
}
}()
wait := make(chan struct{})
i := 0
for ; i < STREAM_TEST_CLIENTS; i++ {
go func(test int) {
defer func() { wait <- struct{}{} }()
conn, err := DialSCTPExt(
"sctp", nil, addr, InitMsg{NumOstreams: STREAM_TEST_STREAMS, MaxInstreams: STREAM_TEST_STREAMS})
if err != nil {
t.Errorf("failed to dial address %s, test #%d: %v", addr.String(), test, err)
return
}
defer conn.Close()
conn.SubscribeEvents(SCTP_EVENT_DATA_IO)
for ppid := uint16(0); ppid < STREAM_TEST_STREAMS; ppid++ {
info := &SndRcvInfo{
Stream: uint16(ppid),
PPID: uint32(ppid),
}
rMu.Lock()
randomLen := r.Intn(255)
rMu.Unlock()
text := fmt.Sprintf("Test %s ***\n\t\t%d %d ***", randomStr(randomLen), test, ppid)
n, err := conn.SCTPWrite([]byte(text), info)
if err != nil {
t.Errorf("failed to write %s, len: %d, err: %v, bytes written: %d", text, len(text), err, n)
return
}
rn := 0
cn := 0
buf := make([]byte, 512)
for {
cn, info, err = conn.SCTPRead(buf[rn:])
if err != nil {
if err == io.EOF || err == io.ErrUnexpectedEOF {
rn += cn
break
}
t.Errorf("failed to read: %v", err)
return
}
if info.Stream != ppid {
t.Errorf("Mismatched PPIDs: %d != %d", info.Stream, ppid)
return
}
rn += cn
if rn >= n {
break
}
}
rtext := string(buf[:rn])
if rtext != text {
t.Fatalf("Mismatched payload: %s != %s", rtext, text)
}
}
}(i)
}
for ; i > 0; i-- {
select {
case <-wait:
case <-time.After(time.Second * 30):
close(wait)
t.Fatal("timed out")
}
}
}
|
