fix: avoid uncaughtException when server cannot open (#537)

yaacov · Dec 12, 2023 · 5663cbf · 5663cbf
1 parent 048f6bf
commit 5663cbf
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diff --git a/ServerTCP.d.ts b/ServerTCP.d.ts
@@ -53,6 +53,7 @@ interface IServerOptions {
 
 export declare interface ServerTCP {
     on(event: 'socketError', listener: FCallback): this;
+    on(event: 'serverError', listener: FCallback): this;
     on(event: 'error', listener: FCallback): this;
     on(event: 'initialized', listener: FCallback): this;
 }

diff --git a/servers/servertcp.js b/servers/servertcp.js
@@ -217,6 +217,9 @@ class ServerTCP extends EventEmitter {
 
         // create a tcp server
         modbus._server = net.createServer();
+        modbus._server.on("error", function(error) {
+            modbus.emit("serverError", error);
+        });
         modbus._server.listen({
             port: options.port || MODBUS_PORT,
             host: options.host || HOST