From 3e7e1a317eac76f0b79752ccfcb6e11c5de85064 Mon Sep 17 00:00:00 2001
From: PioLing <964472638@qq.com>
Date: Wed, 10 Jul 2024 10:43:14 +0800
Subject: [PATCH] Fix the bug in Win32 that fails to retrieve sizes larger than
 4GB. (#3707 #3702)

---
 src/Http/HttpBody.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/Http/HttpBody.cpp b/src/Http/HttpBody.cpp
index a406a076..a6aeb695 100644
--- a/src/Http/HttpBody.cpp
+++ b/src/Http/HttpBody.cpp
@@ -141,7 +141,9 @@ static std::shared_ptr<char> getSharedMmap(const string &file_path, int64_t &fil
         return nullptr;
     }
 
-     file_size = ::GetFileSize(hfile, NULL);
+     LARGE_INTEGER FileSize; 
+     GetFileSizeEx(hfile, &FileSize); //GetFileSize函数的拓展，可用于获取大于4G的文件大小
+     file_size = FileSize.QuadPart;
 
     auto hmapping = ::CreateFileMapping(hfile, NULL, PAGE_READONLY, 0, 0, NULL);