Merge #393

393: improve output message of httpd r=mkroening a=stlankes

- use the time crate to determine the current UTC time
- return greeting with a current timestamp

Co-authored-by: Stefan Lankes <slankes@eonerc.rwth-aachen.de>

Author: bors[bot]

examples/httpd/Cargo.toml

@@ -8,6 +8,9 @@ publish = false
 [dependencies]
 tiny_http = "0.12"
 
+[dependencies.time]
+version = "0.3"
+
 [target.'cfg(target_os = "hermit")'.dependencies.hermit-sys]
 path = "../../hermit-sys"
 default-features = false

examples/httpd/src/main.rs

@@ -5,10 +5,6 @@ use hermit_sys as _;
 
 fn main() {
 	let crab = vec![0xF0_u8, 0x9F_u8, 0xA6_u8, 0x80_u8];
-	let text = format!(
-		"Hello from RustyHermit {}",
-		String::from_utf8(crab).unwrap_or_default()
-	);
 
 	let server = tiny_http::Server::http("0.0.0.0:9975").unwrap();
 	println!("Now listening on port 9975");
@@ -24,7 +20,13 @@ fn main() {
 			request.headers()
 		);
 
-		let response = tiny_http::Response::from_string(text.clone());
+		let now = time::OffsetDateTime::now_utc();
+		let text = format!(
+			"Hello from RustyHermit {}!\nThe current UTC time is {}!\n",
+			String::from_utf8(crab.clone()).unwrap_or_default(),
+			now
+		);
+		let response = tiny_http::Response::from_string(text);
 		request.respond(response).expect("Responded");
 	}
 
@@ -37,7 +39,13 @@ fn main() {
 			request.headers()
 		);
 
-		let response = tiny_http::Response::from_string(text.clone());
+		let now = time::OffsetDateTime::now_utc();
+		let text = format!(
+			"Hello from RustyHermit {}!\nThe current UTC time is {}!\n",
+			String::from_utf8(crab.clone()).unwrap_or_default(),
+			now
+		);
+		let response = tiny_http::Response::from_string(text);
 		request.respond(response).expect("Responded");
 	}
 }