fix metrics logic

1 files changed, 3 insertions, 1 deletions

diff --git a/src/isolate.rs b/src/isolate.rs
index 0adfdb884..4d6f7cdfc 100644
--- a/src/isolate.rs
+++ b/src/isolate.rs
@@ -171,7 +171,6 @@ impl Isolate {
   }
 
   pub fn respond(&mut self, req_id: i32, buf: Buf) {
-    self.state.metrics_op_completed(buf.len() as u64);
     // TODO(zero-copy) Use Buf::leak(buf) to leak the heap allocated buf. And
     // don't do the memcpy in ImportBuf() (in libdeno/binding.cc)
     unsafe {
@@ -189,7 +188,9 @@ impl Isolate {
     // completing.
     self.ntasks_decrement();
     // Call into JS with the buf.
+    let buf_size = buf.len() as u64;
     self.respond(req_id, buf);
+    self.state.metrics_op_completed(buf_size)
   }
 
   fn timeout(&mut self) {
@@ -307,6 +308,7 @@ extern "C" fn pre_dispatch(
     if buf_size != 0 {
       // Set the synchronous response, the value returned from isolate.send().
       isolate.respond(req_id, buf);
+      isolate.state.metrics_op_completed(buf_size as u64);
     }
   } else {
     // Execute op asynchronously.