1 files changed, 55 insertions, 0 deletions
diff --git a/examples/message.rs b/examples/message.rs
new file mode 100644
index 00000000..871058d8
--- /dev/null
+++ b/examples/message.rs
@@ -0,0 +1,55 @@
+//! examples/message.rs
+
+#![deny(unsafe_code)]
+#![deny(warnings)]
+#![no_main]
+#![no_std]
+
+use panic_semihosting as _;
+
+#[rtic::app(device = lm3s6965, dispatchers = [SSI0])]
+mod app {
+    use cortex_m_semihosting::{debug, hprintln};
+
+    #[resources]
+    struct Resources {
+        #[task_local]
+        #[init(0)]
+        times: u32,
+    }
+
+    #[init]
+    fn init(_: init::Context) -> (init::LateResources, init::Monotonics) {
+        foo::spawn(/* no message */).unwrap();
+
+        (init::LateResources {}, init::Monotonics())
+    }
+
+    #[task(resources = [times])]
+    fn foo(cx: foo::Context) {
+        let times = cx.resources.times;
+
+        hprintln!("foo").unwrap();
+
+        bar::spawn(*times).unwrap();
+        *times += 1;
+    }
+
+    #[task]
+    fn bar(_: bar::Context, x: u32) {
+        hprintln!("bar({})", x).unwrap();
+
+        baz::spawn(x + 1, x + 2).unwrap();
+    }
+
+    #[task]
+    fn baz(_: baz::Context, x: u32, y: u32) {
+        hprintln!("baz({}, {})", x, y).unwrap();
+
+        if x + y > 4 {
+            debug::exit(debug::EXIT_SUCCESS);
+        }
+
+        foo::spawn().unwrap();
+    }
+}