Avoid spurios wakups when sent capacity doesn't change

Fixes #628
hyperium · Jul 28, 2022 · 01cea3d · 01cea3d
1 parent 756384f
commit 01cea3d
Showing 1 changed file with 6 additions and 5 deletions.
diff --git a/src/proto/streams/prioritize.rs b/src/proto/streams/prioritize.rs
@@ -749,11 +749,12 @@ impl Prioritize {
                                 stream.buffered_send_data -= len as usize;
                                 stream.requested_send_capacity -= len;
 
-                                // If the capacity was limited because of the
-                                // max_send_buffer_size, then consider waking
-                                // the send task again...
-                                stream.notify_if_can_buffer_more(self.max_buffer_size);
-
+                                if stream_capacity > self.max_buffer_size {
+                                    // If the capacity was limited because of the
+                                    // max_send_buffer_size, then consider waking
+                                    // the send task again...
+                                    stream.notify_if_can_buffer_more(self.max_buffer_size);
+                                }
                                 // Assign the capacity back to the connection that
                                 // was just consumed from the stream in the previous
                                 // line.