From 9399b07d0c9194042bb8b9d97561617d98fa5d5a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michael=20M=C3=BCller?= <michael.mueller@uos.de>
Date: Mon, 11 Jul 2022 12:28:26 +0200
Subject: [PATCH 1/2] hello_tutorial: Let hello_clients run periodically.

---
 repos/hello_tutorial/src/hello/client/main.cc | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/repos/hello_tutorial/src/hello/client/main.cc b/repos/hello_tutorial/src/hello/client/main.cc
index 46f3bab35c..55d25e2436 100644
--- a/repos/hello_tutorial/src/hello/client/main.cc
+++ b/repos/hello_tutorial/src/hello/client/main.cc
@@ -16,10 +16,12 @@
 #include <base/log.h>
 #include <base/attached_rom_dataspace.h>
 #include <hello_session/connection.h>
+#include <timer_session/connection.h>
 
 struct HelloClient {
 	Genode::Env &_env;
 	Hello::Connection &_hello;
+	Timer::Connection _timer{_env};
 
 	unsigned short _a;
 	unsigned short _b;
@@ -49,9 +51,12 @@ struct HelloClient {
 	{
 		_hello.say_hello();
 
-		int const sum = _hello.add(_a, _b);
-		Genode::log("added ", _a, " + ", _b, " = ", sum);
-
+		while (true) {
+			int const sum = _hello.add(_a, _b);
+			Genode::log("added ", _a, " + ", _b, " = ", sum);
+			_timer.msleep(_a*1000);
+			_b += 2;
+		}
 		Genode::log("hello test completed.");
 	}
 

From db3b242acbd725487bc0f72dbbe354e22c9041ed Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michael=20M=C3=BCller?= <michael.mueller@uos.de>
Date: Mon, 11 Jul 2022 12:30:50 +0200
Subject: [PATCH 2/2] hello_tutorial: Adapted scenario.

---
 repos/hello_tutorial/run/hello.run | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/repos/hello_tutorial/run/hello.run b/repos/hello_tutorial/run/hello.run
index 244550a19d..13a2b10850 100644
--- a/repos/hello_tutorial/run/hello.run
+++ b/repos/hello_tutorial/run/hello.run
@@ -22,6 +22,13 @@ install_config {
 		<any-service> <parent/> <any-child/> </any-service>
 	</default-route>
 	<default caps="60"/>
+	<start name="timer">
+		<resource name="RAM" quantum="1M"/>
+		<provides><service name="Timer"/></provides>
+		<route>
+			<any-service><parent/><any-child/></any-service>
+		</route>
+	</start>	
 	<start name="hello_server">
 		<resource name="RAM" quantum="1M"/>
 		<provides> <service name="Hello"/> </provides>