refactor: convert to milliseconds

Author: dylanlott

src/config.rs

@@ -158,8 +158,8 @@ pub struct BuilderConfig {
     /// Number of seconds before the end of the slot to stop querying for new blocks
     #[from_env(
         var = "BLOCK_QUERY_CUTOFF_BUFFER",
-        desc = "Number of seconds before the end of the slot to stop querying for new blocks",
-        default = 2
+        desc = "Number of milliseconds before the end of the slot to stop querying for new blocks",
+        default = 3000
     )]
     pub block_query_cutoff_buffer: u64,
 

src/tasks/block/sim.rs

@@ -249,14 +249,16 @@ impl Simulator {
         // Get the current timepoint within the slot.
         let timepoint =
             self.slot_calculator().current_point_within_slot().expect("host chain has started");
-
-        // We have the timepoint in seconds into the slot. To find out what's
-        // remaining, we need to subtract it from the slot duration
-        // we also subtract 3 seconds to account for the sequencer stopping signing.
-        let remaining = (self.slot_calculator().slot_duration() - timepoint)
-            .saturating_sub(self.config.block_query_cutoff_buffer);
-
-        let deadline = Instant::now() + Duration::from_secs(remaining);
+        // To find the remaining slot time, subtract the timepoint from the slot duration.
+        let slot_duration = Duration::from_secs(self.slot_calculator().slot_duration());
+        let elapsed_in_slot = Duration::from_secs(timepoint);
+        // Then subtract the block query cutoff buffer from the slot duration to account for
+        // the sequencer stopping signing.
+        let query_cutoff_buffer = Duration::from_millis(self.config.block_query_cutoff_buffer);
+        let remaining =
+            slot_duration.saturating_sub(elapsed_in_slot).saturating_sub(query_cutoff_buffer);
+        // The deadline is then calculated by adding the remaining time from this instant.
+        let deadline = Instant::now() + remaining;
         deadline.max(Instant::now())
     }
 }