From 8785ffcb0e640070c6fc7fc8637b2b3363d4eaf6 Mon Sep 17 00:00:00 2001
From: zhang275 <77143103+zhang275@users.noreply.github.com>
Date: Mon, 18 Mar 2024 14:35:05 +0800
Subject: [PATCH] Fixed readback boundary (#370)

---
 src/rpc_buffer.cc | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/rpc_buffer.cc b/src/rpc_buffer.cc
index 0a45fa3d..d5ebb079 100644
--- a/src/rpc_buffer.cc
+++ b/src/rpc_buffer.cc
@@ -482,7 +482,10 @@ long RPCBuffer::read_back(long offset)
 		}
 
  		if (cur_.first == buffer_list_.begin())
- 			break;
+		{
+			cur_.second = 0;
+			break;
+		}
 
 		--cur_.first;
 		cur_.second = cur_.first->buflen;