1st working version of node example

examples/node/libzt.js

@@ -0,0 +1,41 @@
+var nbind = require('@mcesystems/nbind')
+var ZeroTier = nbind.init().lib.ZeroTier
+
+// Start ZeroTier service
+ZeroTier.start(".zerotier", 9994);
+
+// Join virtual network
+ZeroTier.join("8056c2e21c000001");
+
+// Open the socket
+let fd = ZeroTier.connectStream("29.49.7.203", 4444);
+
+// Send some data
+ZeroTier.send(fd, Buffer.from("Name?\n", 'utf8'), 0)
+
+// Set blocking read mode
+// ZeroTier.fcntlSetBlocking(fd, true);
+let heartbeat = setInterval(() => process.stderr.write('.'), 100)
+
+// Receive some data
+const _read = () => {
+    const buf = Buffer.alloc(32)
+    let bytes = -1
+    do {
+        bytes = ZeroTier.recv(fd, buf, 0)
+        if (bytes > 0) { process.stdout.write(buf.toString('utf8')) }
+    } while (bytes > 0);
+
+    if (!ZeroTier.getMyNode().online || buf.toString('utf8').includes("exit")) {
+        // Close the socket
+        ZeroTier.close(fd)
+        // Stop ZeroTier service
+        ZeroTier.stop()
+        // Clear the interval
+        clearInterval(heartbeat)
+    } else {
+        setTimeout(_read, 500)
+    }
+}
+_read()
+