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
|
package snowflake_client
import (
"log"
"time"
)
const (
LogTimeInterval = 5 * time.Second
)
type bytesLogger interface {
addOutbound(int64)
addInbound(int64)
}
// Default bytesLogger does nothing.
type bytesNullLogger struct{}
func (b bytesNullLogger) addOutbound(amount int64) {}
func (b bytesNullLogger) addInbound(amount int64) {}
// bytesSyncLogger uses channels to safely log from multiple sources with output
// occuring at reasonable intervals.
type bytesSyncLogger struct {
outboundChan chan int64
inboundChan chan int64
}
// newBytesSyncLogger returns a new bytesSyncLogger and starts it loggin.
func newBytesSyncLogger() *bytesSyncLogger {
b := &bytesSyncLogger{
outboundChan: make(chan int64, 5),
inboundChan: make(chan int64, 5),
}
go b.log()
return b
}
func (b *bytesSyncLogger) log() {
var outbound, inbound int64
var outEvents, inEvents int
ticker := time.NewTicker(LogTimeInterval)
for {
select {
case <-ticker.C:
if outEvents > 0 || inEvents > 0 {
log.Printf("Traffic Bytes (in|out): %d | %d -- (%d OnMessages, %d Sends)",
inbound, outbound, inEvents, outEvents)
}
outbound = 0
outEvents = 0
inbound = 0
inEvents = 0
case amount := <-b.outboundChan:
outbound += amount
outEvents++
case amount := <-b.inboundChan:
inbound += amount
inEvents++
}
}
}
func (b *bytesSyncLogger) addOutbound(amount int64) {
b.outboundChan <- amount
}
func (b *bytesSyncLogger) addInbound(amount int64) {
b.inboundChan <- amount
}
|
