adding timeout to function node

.gitignore

@@ -27,3 +27,4 @@ docs
 .vscode
 .nyc_output
 sync.ffs_db
+package-lock.json

packages/node_modules/@node-red/nodes/core/function/10-function.html

@@ -82,6 +82,11 @@
                 <input id="node-input-outputs" style="width: 60px;" value="1">
             </div>
 
+            <div class="form-row">
+                <label for="node-input-timeout"><i class="fa fa-clock"></i> <span data-i18n="function.label.timeout"></span></label>
+                <input id="node-input-timeout" style="width: 60px;" value="1000">
+            </div>
+
             <div class="form-row node-input-libs-row hide" style="margin-bottom: 0px;">
                 <label><i class="fa fa-cubes"></i> <span data-i18n="function.label.modules"></span></label>
             </div>
@@ -353,6 +358,8 @@
         return _libs;
     }
 
+   
+
     RED.nodes.registerType('function',{
         color:"#fdd0a2",
         category: 'function',
@@ -360,6 +367,7 @@
             name: {value:"_DEFAULT_"},
             func: {value:"\nreturn msg;"},
             outputs: {value:1},
+            timeout:{value:0},
             noerr: {value:0,required:true,
                     validate: function(v, opt) {
                         if (!v) {
@@ -463,6 +471,25 @@
                     if (value !== this.value) { $(this).spinner("value", value); }
                 }
             });
+            // 4294967295 is max in node.js timeout.
+            $( "#node-input-timeout" ).spinner({
+                min: 0,
+                max: 4294967294,
+                change: function(event, ui) {
+                    var value = this.value;
+                    if(value == ""){
+                        value = 0;
+                    }
+                    else
+                    {
+                        value = parseInt(value);
+                    }
+                    value = isNaN(value) ? 1 : value;
+                    value = Math.max(value, parseInt($(this).attr("aria-valuemin")));
+                    value = Math.min(value, parseInt($(this).attr("aria-valuemax")));
+                    if (value !== this.value) { $(this).spinner("value", value); }
+                }
+            });
 
             var buildEditor = function(id, stateId, focus, value, defaultValue, extraLibs, offset) {
                 var editor = RED.editor.createEditor({
@@ -503,7 +530,7 @@
                 editor:this.editor, // the field name the main text body goes to
                 mode:"ace/mode/nrjavascript",
                 fields:[
-                    'name', 'outputs',
+                    'name', 'outputs', 'timeout',
                     {
                         name: 'initialize',
                         get: function() {

packages/node_modules/@node-red/nodes/core/function/10-function.js

@@ -96,6 +96,14 @@ module.exports = function(RED) {
         node.name = n.name;
         node.func = n.func;
         node.outputs = n.outputs;
+        node.timeout = n.timeout*1;
+        if(node.timeout>0){
+            node.timeoutOptions = {
+                timeout:node.timeout,
+                breakOnSigint:true
+            }
+        }
+
         node.ini = n.initialize ? n.initialize.trim() : "";
         node.fin = n.finalize ? n.finalize.trim() : "";
         node.libs = n.libs || [];
@@ -361,6 +369,10 @@ module.exports = function(RED) {
                         `+ node.ini +`
                     })(__initSend__);`;
                     iniOpt = createVMOpt(node, " setup");
+                    if(node.timeout>0){
+                        iniOpt.timeout = node.timeout;
+                        iniOpt.breakOnSigint = true;
+                    }
                     iniScript = new vm.Script(iniText, iniOpt);
                 }
                 node.script = vm.createScript(functionText, createVMOpt(node, ""));
@@ -384,6 +396,11 @@ module.exports = function(RED) {
                         `+node.fin +`
                     })();`;
                     finOpt = createVMOpt(node, " cleanup");
+                    if(node.timeout>0){
+                        finOpt.timeout = node.timeout;
+                        finOpt.breakOnSigint = true;
+                    }
+                    
                     finScript = new vm.Script(finText, finOpt);
                 }
                 var promise = Promise.resolve();
@@ -396,9 +413,12 @@ module.exports = function(RED) {
                     var start = process.hrtime();
                     context.msg = msg;
                     context.__send__ = send;
-                    context.__done__ = done;
+                    context.__done__ = done;    
-
+                    var opts = {};
-                    node.script.runInContext(context);
+                    if (node.timeout>0){
+                        opts = node.timeoutOptions;
+                    }
+                    node.script.runInContext(context,opts);
                     context.results.then(function(results) {
                         sendResults(node,send,msg._msgid,results,false);
                         if (handleNodeDoneCall) {

packages/node_modules/@node-red/nodes/locales/en-US/messages.json

@@ -248,7 +248,8 @@
             "initialize": "On Start",
             "finalize": "On Stop",
             "outputs": "Outputs",
-            "modules": "Modules"
+            "modules": "Modules",
+            "timeout": "Timeout (ms)"
         },
         "text": {
             "initialize": "// Code added here will be run once\n// whenever the node is started.\n",

packages/node_modules/node-red/settings.js

@@ -539,4 +539,8 @@ module.exports = {
     //    *   - reason: if result is false, the HTTP reason string to return
     //    */
     //},
+    /** The following property can be used to specify the defaultTimeout Value for function nodes.
+     */
+    //defaultFunctionNodeTimeout:1000
+    defaultFunctionNodeTimeout:1000,
 }