make daemon node kill/term/int selectable

utility/daemon/daemon.html

@@ -28,6 +28,14 @@
             <option value="number">try to convert reply to a number</option>
         </select>
     </div>
+    <div class="form-row">
+        <label for="node-input-closer"> on close</label>
+        <select id="node-input-closer" style='width:70%'>
+            <option value="SIGKILL">kill process immediately</option>
+            <option value="SIGTERM">try to terminate process</option>
+            <option value="SIGINT">try to interrupt process</option>
+        </select>
+    </div>
     <div class="form-row">
         <label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
         <input type="text" id="node-input-name" placeholder="Name">
@@ -51,12 +59,13 @@
         category: 'advanced-function',
         color:"darksalmon",
         defaults: {
+            name: {value:""},
             command: {value:"",required:true},
             args: {value:""},
             cr: {value:false},
             redo: {value:true},
             op: {value:"string"},
-            name: {value:""}
+            closer: {value:"SIGKILL"}
         },
         inputs:1,
         outputs:3,

utility/daemon/daemon.js

@@ -11,6 +11,7 @@ module.exports = function(RED) {
         this.op = n.op;
         this.redo = n.redo;
         this.running = false;
+        this.closer = n.closer || "SIGKILL";
         var node = this;
 
         function inputlistener(msg) {
@@ -110,10 +111,21 @@ module.exports = function(RED) {
 
         node.on("close", function(done) {
             clearInterval(loop);
-            if (node.child != null) { node.child.kill('SIGKILL'); }
-            if (RED.settings.verbose) { node.log(node.cmd+" stopped"); }
+            if (node.child != null) {
+                var tout;
+                node.child.on('exit', function() {
+                    if (tout) { clearTimeout(tout); }
+                    done();
+                });
+                tout = setTimeout(function() {
+                    node.child.kill("SIGKILL"); // if it takes more than 3 secs kill it anyway.
+                    done();
+                }, 3000);
+                node.child.kill(node.closer);
+                if (RED.settings.verbose) { node.log(node.cmd+" stopped"); }
+            }
+            else { setTimeout(function() { done(); }, 100); }
             node.status({});
-            setTimeout(function() { done(); }, 100);
         });
 
         runit();

utility/daemon/package.json

@@ -1,6 +1,6 @@
 {
     "name"          : "node-red-node-daemon",
-    "version"       : "0.0.20",
+    "version"       : "0.0.21",
     "description"   : "A Node-RED node that runs and monitors a long running system command.",
     "dependencies"  : {
     },