/
main.go
90 lines (77 loc) · 1.51 KB
/
main.go
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package main
import (
"bytes"
syl "github.com/mrb/sylvester"
"log"
"math/rand"
"os"
"time"
)
func main() {
graph := syl.NewGraph()
node := graph.NewNode()
node.NewAsyncEvent(Starter)
node.NewAsyncEvent(Watcher)
node.NewSyncEvent(Sync)
node.NewSyncEvent(Sync2)
node.NewSyncEvent(Sync3)
graph.Activate()
<-graph.Control
}
func Starter(c syl.Channels) {
cd := 0
for {
c.Data <- []byte{byte(cd)}
cd += 1
if cd > 100 {
c.Control <- syl.NodeExit()
}
}
}
func Async(c syl.Channels) {
for {
select {
case data := <-c.Data:
<-time.After(time.Duration(rand.Int31n(100)) * time.Millisecond)
log.Print("a", data)
}
}
}
func Sync(c syl.Channels) {
select {
case data := <-c.Data:
<-time.After(time.Duration(rand.Int31n(100)) * time.Millisecond)
log.Print(" s", data)
c.Control <- syl.NodeNext()
}
}
func Sync2(c syl.Channels) {
select {
case data := <-c.Data:
<-time.After(time.Duration(rand.Int31n(100)) * time.Millisecond)
log.Print(" s2", data)
c.Control <- syl.NodeNext()
}
}
func Sync3(c syl.Channels) {
select {
case data := <-c.Data:
<-time.After(time.Duration(rand.Int31n(100)) * time.Millisecond)
log.Print(" s3", data)
c.Control <- syl.NodeSyncEventRestart()
}
}
func Watcher(c syl.Channels) {
for {
<-time.After(10 * time.Millisecond)
select {
case control := <-c.Control:
if bytes.Equal(control, syl.NodeExit()) {
log.Print("Received EXIT, exiting")
os.Exit(0)
} else {
c.Control <- control
}
}
}
}