forked from tiglabs/raft
-
Notifications
You must be signed in to change notification settings - Fork 0
/
transport_sender.go
162 lines (146 loc) · 3.33 KB
/
transport_sender.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
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
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
package raft
import (
"runtime"
"sync"
"time"
"github.com/tiglabs/raft/logger"
"github.com/tiglabs/raft/proto"
"github.com/tiglabs/raft/util"
)
type unreachableReporter func(uint64)
type transportSender struct {
nodeId uint64
concurrency uint64
senderType SocketType
resolver SocketResolver
inputc []chan *proto.Message
send func(msg *proto.Message)
mu sync.Mutex
stopc chan struct{}
}
func newTransportSender(nodeId, concurrency uint64, buffSize int, senderType SocketType, resolver SocketResolver) *transportSender {
sender := &transportSender{
nodeId: nodeId,
concurrency: concurrency,
senderType: senderType,
resolver: resolver,
inputc: make([]chan *proto.Message, concurrency),
stopc: make(chan struct{}),
}
for i := uint64(0); i < concurrency; i++ {
sender.inputc[i] = make(chan *proto.Message, buffSize)
sender.loopSend(sender.inputc[i])
}
if (concurrency & (concurrency - 1)) == 0 {
sender.send = func(msg *proto.Message) {
idx := 0
if concurrency > 1 {
idx = int(msg.ID&concurrency - 1)
}
sender.inputc[idx] <- msg
}
} else {
sender.send = func(msg *proto.Message) {
idx := 0
if concurrency > 1 {
idx = int(msg.ID % concurrency)
}
sender.inputc[idx] <- msg
}
}
return sender
}
func (s *transportSender) stop() {
s.mu.Lock()
defer s.mu.Unlock()
select {
case <-s.stopc:
return
default:
close(s.stopc)
}
}
func (s *transportSender) loopSend(recvc chan *proto.Message) {
util.RunWorkerUtilStop(func() {
conn := getConn(s.nodeId, s.senderType, s.resolver, 0, 2*time.Second)
bufWr := util.NewBufferWriter(conn, 16*KB)
defer func() {
if conn != nil {
conn.Close()
}
}()
loopCount := 0
var err error
for {
loopCount = loopCount + 1
if loopCount > 8 {
loopCount = 0
runtime.Gosched()
}
select {
case <-s.stopc:
return
case msg := <-recvc:
if conn == nil {
conn = getConn(s.nodeId, s.senderType, s.resolver, 0, 2*time.Second)
if conn == nil {
time.Sleep(50 * time.Millisecond)
continue
}
bufWr.Reset(conn)
}
err = msg.Encode(bufWr)
proto.ReturnMessage(msg)
if err != nil {
goto flush
}
// group send message
flag := false
for i := 0; i < 16; i++ {
select {
case msg := <-recvc:
err = msg.Encode(bufWr)
proto.ReturnMessage(msg)
if err != nil {
goto flush
}
default:
flag = true
}
if flag {
break
}
}
}
flush:
// flush write
if err == nil {
err = bufWr.Flush()
}
if err != nil {
logger.Error("[Transport]send message[%s] to %v[%s] error:[%v].", s.senderType, s.nodeId, conn.RemoteAddr(), err)
conn.Close()
conn = nil
}
}
}, s.stopc)
}
func getConn(nodeId uint64, socketType SocketType, resolver SocketResolver, rdTime, wrTime time.Duration) (conn *util.ConnTimeout) {
var (
addr string
err error
)
if addr, err = resolver.NodeAddress(nodeId, socketType); err == nil {
if conn, err = util.DialTimeout(addr, 2*time.Second); err == nil {
conn.SetReadTimeout(rdTime)
conn.SetWriteTimeout(wrTime)
}
}
if err != nil {
conn = nil
if logger.IsEnableDebug() {
logger.Debug("[Transport] get connection[%s] to %v[%s] failed,error is: %s", socketType, nodeId, addr, err)
}
}
return
}