lbcdblocknotify: support multiple stratum server

rpcclient/examples/lbcdblocknotify/main.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"flag"
+	"fmt"
 	"log"
 	"os/exec"
 	"path/filepath"
@@ -10,56 +11,73 @@ import (
 	"github.com/lbryio/lbcutil"
 )
 
+type stratumFlag []string
+
 var (
 	lbcdHomeDir = lbcutil.AppDataDir("lbcd", false)
 	defaultCert = filepath.Join(lbcdHomeDir, "rpc.cert")
+	stratumList stratumFlag
 )
 var (
-	coinid        = flag.String("coinid", "1425", "Coin ID")
-	stratumServer = flag.String("stratum", "", "Stratum server")
-	stratumPass   = flag.String("stratumpass", "", "Stratum server password")
-	rpcserver     = flag.String("rpcserver", "localhost:9245", "LBCD RPC server")
-	rpcuser       = flag.String("rpcuser", "rpcuser", "LBCD RPC username")
-	rpcpass       = flag.String("rpcpass", "rpcpass", "LBCD RPC password")
-	rpccert       = flag.String("rpccert", defaultCert, "LBCD RPC certificate")
-	notls         = flag.Bool("notls", false, "Connect to LBCD with TLS disabled")
-	run           = flag.String("run", "", "Run custom shell command")
-	quiet         = flag.Bool("quiet", false, "Do not print logs")
+	coinid      = flag.String("coinid", "1425", "Coin ID")
+	stratumPass = flag.String("stratumpass", "", "Stratum server password")
+	rpcserver   = flag.String("rpcserver", "localhost:9245", "LBCD RPC server")
+	rpcuser     = flag.String("rpcuser", "rpcuser", "LBCD RPC username")
+	rpcpass     = flag.String("rpcpass", "rpcpass", "LBCD RPC password")
+	rpccert     = flag.String("rpccert", defaultCert, "LBCD RPC certificate")
+	notls       = flag.Bool("notls", false, "Connect to LBCD with TLS disabled")
+	run         = flag.String("run", "", "Run custom shell command")
+	quiet       = flag.Bool("quiet", false, "Do not print logs")
 )
 
 func main() {
 
+	flag.Var(&stratumList, "stratum", "--stratum=stratum1 --stratum=stratum2")
 	flag.Parse()
+	for _, stratum := range stratumList {
+		go func(stratum string) {
+			// Setup notification handler
+			b := newBridge(stratum, *stratumPass, *coinid)
 
-	// Setup notification handler
-	b := newBridge(*stratumServer, *stratumPass, *coinid)
+			if len(*run) > 0 {
+				// Check if ccommand exists.
+				strs := strings.Split(*run, " ")
+				cmd := strs[0]
+				_, err := exec.LookPath(cmd)
+				if err != nil {
+					log.Fatalf("ERROR: %s not found: %s", cmd, err)
+				}
+				b.customCmd = *run
+			}
 
-	if len(*run) > 0 {
-		// Check if ccommand exists.
-		strs := strings.Split(*run, " ")
-		cmd := strs[0]
-		_, err := exec.LookPath(cmd)
-		if err != nil {
-			log.Fatalf("ERROR: %s not found: %s", cmd, err)
-		}
-		b.customCmd = *run
-	}
+			// Start the eventt handler.
+			go b.start()
+
+			// Adaptater receives lbcd notifications, and emit events.
+			adpt := adapter{b}
 
-	// Start the eventt handler.
-	go b.start()
+			client := newLbcdClient(*rpcserver, *rpcuser, *rpcpass, *notls, adpt)
 
-	// Adaptater receives lbcd notifications, and emit events.
-	adpt := adapter{b}
+			go func() {
+				err := <-b.errorc
+				log.Fatalf("ERROR: %s", err)
+				client.Shutdown()
+			}()
+			// Wait until the client either shuts down gracefully (or the user
+			// terminates the process with Ctrl+C).
+			client.WaitForShutdown()
+		}(stratum)
+	}
 
-	client := newLbcdClient(*rpcserver, *rpcuser, *rpcpass, *notls, adpt)
+	quit := make(chan bool)
+	<-quit
+}
 
-	go func() {
-		err := <-b.errorc
-		log.Fatalf("ERROR: %s", err)
-		client.Shutdown()
-	}()
+func (f *stratumFlag) String() string {
+	return fmt.Sprintf("%v", []string(*f))
+}
 
-	// Wait until the client either shuts down gracefully (or the user
-	// terminates the process with Ctrl+C).
-	client.WaitForShutdown()
+func (f *stratumFlag) Set(value string) error {
+	*f = append(*f, value)
+	return nil
 }