feat(server): warn if encoding takes >10ms

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>

Author: elmarco

crates/ironrdp-server/src/lib.rs

@@ -28,3 +28,16 @@ pub use handler::*;
 pub use helper::*;
 pub use server::*;
 pub use sound::*;
+
+#[macro_export]
+macro_rules! time_warn {
+    ($context:expr, $threshold:expr, $op:expr) => {{
+        let start = std::time::Instant::now();
+        let result = $op;
+        let duration = start.elapsed().as_millis();
+        if duration > $threshold {
+            ::tracing::warn!("{} took {} ms!", $context, duration);
+        }
+        result
+    }};
+}

crates/ironrdp-server/src/server.rs

@@ -32,7 +32,7 @@ use crate::clipboard::CliprdrServerFactory;
 use crate::display::{DisplayUpdate, RdpServerDisplay};
 use crate::encoder::UpdateEncoder;
 use crate::handler::RdpServerInputHandler;
-use crate::{builder, capabilities, SoundServerFactory};
+use crate::{builder, capabilities, time_warn, SoundServerFactory};
 
 #[derive(Clone)]
 pub struct RdpServerOptions {
@@ -417,7 +417,7 @@ impl RdpServer {
         let mut fragmenter = match update {
             DisplayUpdate::Bitmap(bitmap) => {
                 let (enc, res) = task::spawn_blocking(move || {
-                    let res = encoder.bitmap(bitmap).map(|r| r.into_owned());
+                    let res = time_warn!("Encoding bitmap", 10, encoder.bitmap(bitmap).map(|r| r.into_owned()));
                     (encoder, res)
                 })
                 .await?;