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main.go
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main.go
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// RAINBOND, Application Management Platform
// Copyright (C) 2014-2017 Goodrain Co., Ltd.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version. For any non-GPL usage of Rainbond,
// one or multiple Commercial Licenses authorized by Goodrain Co., Ltd.
// must be obtained first.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package main
import (
"errors"
"fmt"
"os"
"os/signal"
"sync"
"syscall"
"time"
"github.com/Sirupsen/logrus"
"github.com/pebbe/zmq4"
"github.com/spf13/pflag"
"github.com/twinj/uuid"
)
const (
REQUEST_TIMEOUT = 1000 * time.Millisecond
MAX_RETRIES = 3 // Before we abandon
)
var endpoint string
var coreNum int
var t string
func AddFlags(fs *pflag.FlagSet) {
fs.StringVar(&endpoint, "endpoint", "tcp://127.0.0.1:6366", "event server url")
fs.IntVar(&coreNum, "core", 10, "core number")
fs.StringVar(&t, "t", "1s", "时间间隔")
}
func main() {
AddFlags(pflag.CommandLine)
pflag.Parse()
interrupt := make(chan os.Signal, 1)
signal.Notify(interrupt, os.Interrupt, syscall.SIGTERM)
var wait sync.WaitGroup
d, _ := time.ParseDuration(t)
for i := 0; i < coreNum; i++ {
wait.Add(1)
go func(en string) {
client, _ := zmq4.NewSocket(zmq4.REQ)
client.Connect(en)
defer client.Close()
id := uuid.NewV4()
Continuous:
for {
request := []string{fmt.Sprintf(`{"event_id":"%s","message":"hello word2","time":"%s"}`, id, time.Now().Format(time.RFC3339))}
_, err := client.SendMessage(request)
if err != nil {
logrus.Error("Send:", err)
}
poller := zmq4.NewPoller()
poller.Add(client, zmq4.POLLIN)
polled, err := poller.Poll(REQUEST_TIMEOUT)
if err != nil {
logrus.Error("Red:", err)
}
reply := []string{}
if len(polled) > 0 {
reply, err = client.RecvMessage(0)
} else {
err = errors.New("Time out")
}
if len(reply) > 0 {
logrus.Info(en, ":", reply[0])
}
if err != nil {
logrus.Error(err)
break Continuous
}
select {
case <-interrupt:
break Continuous
case <-time.Tick(d):
}
}
wait.Done()
}(endpoint)
}
wait.Wait()
}