From 0d6096df0a8a770f50d09cfb8625ee4225eb18be Mon Sep 17 00:00:00 2001
From: John Benediktsson <mrjbq7@gmail.com>
Date: Tue, 25 Feb 2020 11:05:17 -0800
Subject: [PATCH] vm: use FILE_READ_ATTRIBUTES to make exists? faster.

---
 vm/os-windows.cpp | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/vm/os-windows.cpp b/vm/os-windows.cpp
index d6b74888c2..a5df4dc864 100644
--- a/vm/os-windows.cpp
+++ b/vm/os-windows.cpp
@@ -37,15 +37,14 @@ void factor_vm::ffi_dlclose(dll* dll) {
 
 BOOL factor_vm::windows_stat(vm_char* path) {
   BY_HANDLE_FILE_INFORMATION bhfi;
-  HANDLE h = CreateFileW(path, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, NULL,
+  HANDLE h = CreateFileW(path, FILE_READ_ATTRIBUTES, 0, NULL,
                          OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL);
 
   if (h == INVALID_HANDLE_VALUE) {
     // FindFirstFile is the only call that can stat c:\pagefile.sys
     WIN32_FIND_DATA st;
-    HANDLE h;
-
-    if (INVALID_HANDLE_VALUE == (h = FindFirstFile(path, &st)))
+    h = FindFirstFile(path, &st);
+    if (h == INVALID_HANDLE_VALUE)
       return false;
     FindClose(h);
     return true;
-- 
2.34.1