From 4e078941d032c6ac0e1ea3c85989fd5d9a8747ba Mon Sep 17 00:00:00 2001
From: Ryan Liptak <squeek502@hotmail.com>
Date: Sat, 26 Nov 2022 11:02:04 -0800
Subject: os.windows.OpenFile: Add `USER_MAPPED_FILE` as a possible error

Ran into this when using a program that uses CreateFileMapping and then trying to call `std.fs.createFile` on the mapped file. More info can be found here:

https://stackoverflow.com/questions/41844842/when-error-1224-error-user-mapped-file-occurs

Before:

```
error.Unexpected NTSTATUS=0xc0000243
C:\Users\Ryan\Programming\Zig\zig\lib\std\os\windows.zig:138:40: 0x7ff74e957466 in OpenFile (test.exe.obj)
        else => return unexpectedStatus(rc),
                                       ^
```

After:

```
FAIL (AccessDenied)
C:\Users\Ryan\Programming\Zig\zig\lib\std\os\windows.zig:137:30: 0x7ff7f5b776ea in OpenFile (test.exe.obj)
        .USER_MAPPED_FILE => return error.AccessDenied,
                             ^
```
---
 lib/std/os/windows.zig | 1 +
 1 file changed, 1 insertion(+)

(limited to 'lib/std')

diff --git a/lib/std/os/windows.zig b/lib/std/os/windows.zig
index ba9979cbb4..ec49873efc 100644
--- a/lib/std/os/windows.zig
+++ b/lib/std/os/windows.zig
@@ -134,6 +134,7 @@ pub fn OpenFile(sub_path_w: []const u16, options: OpenFileOptions) OpenError!HAN
         .OBJECT_NAME_COLLISION => return error.PathAlreadyExists,
         .FILE_IS_A_DIRECTORY => return error.IsDir,
         .NOT_A_DIRECTORY => return error.NotDir,
+        .USER_MAPPED_FILE => return error.AccessDenied,
         .INVALID_HANDLE => unreachable,
         else => return unexpectedStatus(rc),
     }
-- 
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