From b3607a6d7d14b23369275188eebd93e8949b1a4c Mon Sep 17 00:00:00 2001
From: skywind3000 <skywind3000@163.com>
Date: Fri, 15 May 2026 21:40:30 +0800
Subject: [PATCH] fix: on_pkt_sent lacks xmit information

---
 ikcp.c | 3 ++-
 ikcp.h | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/ikcp.c b/ikcp.c
index c18b688..6e625b6 100644
--- a/ikcp.c
+++ b/ikcp.c
@@ -1086,7 +1086,8 @@ void ikcp_flush(ikcpcb *kcp)
 		newseg->xmit = 0;
 
 		if (kcp->ccops && kcp->ccops->on_pkt_sent) {
-			kcp->ccops->on_pkt_sent(kcp, newseg->sn, current, newseg->len, kcp->nsnd_buf - 1);
+			kcp->ccops->on_pkt_sent(kcp, newseg->sn, current, 
+					newseg->len, kcp->nsnd_buf - 1, 0);
 		}
 	}
 
diff --git a/ikcp.h b/ikcp.h
index 6cf5a5f..9d90b8b 100644
--- a/ikcp.h
+++ b/ikcp.h
@@ -306,7 +306,7 @@ struct IKCPOPS
 	void (*on_app_limited)(ikcpcb *kcp, IUINT32 inflight);
 	void (*on_rtt)(ikcpcb *kcp, IINT32 rtt);
 	void (*on_pkt_sent)(ikcpcb *kcp, IUINT32 sn, IUINT32 ts,
-				IUINT32 len, IUINT32 inflight);
+				IUINT32 len, IUINT32 inflight, IUINT32 xmit);
 	void (*on_pkt_acked)(ikcpcb *kcp, IUINT32 sn, IUINT32 ts,
 				IUINT32 len, IINT32 rtt, IUINT32 xmit);
 	IUINT32 (*get_info)(ikcpcb *kcp, void *buf, IUINT32 bufsize);