From b9fc4b9cee6190f8841f00b1bd958ebe8d9391ad Mon Sep 17 00:00:00 2001
From: Nils Andreas Svee <me@lochnair.net>
Date: Tue, 28 Apr 2026 22:38:08 +0700
Subject: [PATCH] refactor(client): capture send timestamp before socket call

Record the send timestamp immediately before the socket operation to include local enqueue overhead in RTT measurements, providing more conservative latency data for consumers.
---
 crates/irtt-client/src/client.rs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/crates/irtt-client/src/client.rs b/crates/irtt-client/src/client.rs
index 973fc40..a7e40bd 100644
--- a/crates/irtt-client/src/client.rs
+++ b/crates/irtt-client/src/client.rs
@@ -201,9 +201,8 @@ impl Client {
             payload: vec![],
         };
         let packet = encode_echo_request(&request, self.config.hmac_key.as_deref())?;
-        self.socket.send(&packet)?;
-
         let sent_at = override_ts.unwrap_or_else(ClientTimestamp::now);
+        self.socket.send(&packet)?;
 
         let session = self
             .session