forked from childe/gohangout
-
Notifications
You must be signed in to change notification settings - Fork 0
/
gohangout.go
138 lines (115 loc) · 2.95 KB
/
gohangout.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
package main
import (
"flag"
"net/http"
_ "net/http/pprof"
"os"
"os/signal"
"runtime"
"runtime/pprof"
"sync"
"syscall"
"github.com/childe/gohangout/input"
"github.com/childe/gohangout/topology"
"github.com/golang/glog"
jsoniter "github.com/json-iterator/go"
)
var json = jsoniter.ConfigCompatibleWithStandardLibrary
var options = &struct {
config string
pprof bool
pprofAddr string
cpuprofile string
memprofile string
}{}
var gitCommit string
func printVersion() {
glog.Info("Current build version: ", gitCommit)
}
var (
worker = flag.Int("worker", 1, "worker thread count")
)
func init() {
flag.StringVar(&options.config, "config", options.config, "path to configuration file or directory")
flag.BoolVar(&options.pprof, "pprof", false, "if pprof")
flag.StringVar(&options.pprofAddr, "pprof-address", "127.0.0.1:8899", "default: 127.0.0.1:8899")
flag.StringVar(&options.cpuprofile, "cpuprofile", "", "write cpu profile to `file`")
flag.StringVar(&options.memprofile, "memprofile", "", "write mem profile to `file`")
flag.Parse()
}
func init() {
printVersion()
}
func buildPluginLink(config map[string]interface{}) []*input.InputBox {
boxes := make([]*input.InputBox, 0)
for inputIdx, inputI := range config["inputs"].([]interface{}) {
var inputPlugin topology.Input
i := inputI.(map[interface{}]interface{})
glog.Infof("input[%d] %v", inputIdx+1, i)
// len(i) is 1
for inputTypeI, inputConfigI := range i {
inputType := inputTypeI.(string)
inputConfig := inputConfigI.(map[interface{}]interface{})
inputPlugin = input.GetInput(inputType, inputConfig)
box := input.NewInputBox(inputPlugin, config)
boxes = append(boxes, box)
}
}
return boxes
}
func main() {
if options.pprof {
go func() {
http.ListenAndServe(options.pprofAddr, nil)
}()
}
if options.cpuprofile != "" {
f, err := os.Create(options.cpuprofile)
if err != nil {
glog.Fatalf("could not create CPU profile: %s", err)
}
if err := pprof.StartCPUProfile(f); err != nil {
glog.Fatalf("could not start CPU profile: %s", err)
}
defer pprof.StopCPUProfile()
}
if options.memprofile != "" {
defer func() {
f, err := os.Create(options.memprofile)
if err != nil {
glog.Fatalf("could not create memory profile: %s", err)
}
defer f.Close()
runtime.GC() // get up-to-date statistics
if err := pprof.WriteHeapProfile(f); err != nil {
glog.Fatalf("could not write memory profile: %s", err)
}
}()
}
config, err := parseConfig(options.config)
if err != nil {
glog.Fatalf("could not parse config:%s", err)
}
glog.Infof("%v", config)
boxes := buildPluginLink(config)
c := make(chan os.Signal, 1)
signal.Notify(c, os.Interrupt, syscall.SIGTERM)
go func() {
for {
<-c
signal.Stop(c)
for _, box := range boxes {
box.Shutdown()
}
}
}()
var wg sync.WaitGroup
wg.Add(len(boxes))
defer wg.Wait()
for i, _ := range boxes {
go func(i int) {
defer wg.Done()
boxes[i].Beat(*worker)
}(i)
}
}