61 lines
1.2 KiB
Go
61 lines
1.2 KiB
Go
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package qgrpc
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import (
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"context"
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"github.com/coreos/etcd/clientv3"
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"globalfintech/golib/tlog"
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"path"
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"time"
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)
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func etcdGrantWrapper(cli *clientv3.Client) (clientv3.LeaseID, error) {
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resp, err := cli.Grant(context.Background(), 5)
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if err != nil {
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return 0, err
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}
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return resp.ID, nil
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}
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func (self *Server) register() (err error) {
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if len(self.userCfg.Prefix) < 1 || len(self.userCfg.Addr) < 1 {
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tlog.Info("qgrpc server||register||prefix or addr less than 1 char")
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return nil
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}
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if self.etcdId, err = etcdGrantWrapper(self.etcdCli); err != nil {
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return err
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}
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for _, server := range self.userCfg.Servers {
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addr := self.userCfg.GetAddr()
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etcdKey := path.Join(self.userCfg.Prefix, server, addr)
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if _, err = self.etcdCli.Put(context.Background(), etcdKey, addr, clientv3.WithLease(self.etcdId)); err != nil {
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return err
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}
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}
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ch, err := self.etcdCli.KeepAlive(context.Background(), self.etcdId)
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if err != nil {
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tlog.Error(err)
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}
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go self.keepalive(ch)
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return err
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}
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func (self *Server) keepalive(ch <-chan *clientv3.LeaseKeepAliveResponse) {
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for {
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resp := <-ch
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if resp == nil {
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tlog.Error("qgrpc server||keepalive||nil response")
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self.Revoke()
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time.Sleep(time.Second)
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self.register()
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return
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}
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}
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}
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