Limit commands delivered by i104m to the first two ip addresses.

Author: riclolsen

Diff for: src/i104m/README.md

@@ -40,7 +40,7 @@ One connection must be created for each instance in "protocolConnections":
         "enabled": true,                        // enable the connection
         "commandsEnabled": true,                // enable commands for the connection (if false, no commands will be forwarded)
         "ipAddressLocalBind": "0.0.0.0:8099",   // bind address and port to listen for UPD messages
-        "ipAddresses": ["127.0.0.1:8098"]       // only accept messages from addresses here, deliver commands to IP:port
+        "ipAddresses": ["127.0.0.1:8098"]       // only accept messages from addresses here, deliver commands only to the first two to IP:port of this list
         })
 
 

Diff for: src/i104m/i104m.go

@@ -40,7 +40,7 @@ import (
 	"go.mongodb.org/mongo-driver/mongo/options"
 )
 
-var softwareVersion string = "{json:scada} I104M Protocol Driver v.0.1.1 - Copyright 2020 Ricardo L. Olsen"
+var softwareVersion string = "{json:scada} I104M Protocol Driver v.0.1.2 - Copyright 2020-2021 Ricardo L. Olsen"
 var driverName string = "I104M"
 var isActive bool = false
 
@@ -278,7 +278,12 @@ func iterateChangeStream(routineCtx context.Context, waitGroup *sync.WaitGroup,
 
 			errMsg := ""
 			ok := false
-			for _, ipAddressDest := range protCon.IPAddresses {
+			for i, ipAddressDest := range protCon.IPAddresses {
+
+				if i >= 2 { // only send to the first 2 addresses
+					break
+				}
+
 				if strings.TrimSpace(ipAddressDest) == "" {
 					errMsg = "no IP destination"
 					continue