Commit 1f09584d05

Andrew Kelley <andrew@ziglang.org>
2020-12-09 23:03:17
MoveFileEx can return ACCESS_DENIED
I observed this on Windows 10, trying to use MoveFileEx with MOVEFILE_REPLACE_EXISTING | MOVEFILE_WRITE_THROUGH to overwrite a running executable.
1 parent cad2e8d
Changed files (1)
lib
std
os
windows.zig
lib/std/os/windows.zig
@@ -828,7 +828,7 @@ pub fn DeleteFile(sub_path_w: []const u16, options: DeleteFileOptions) DeleteFil
     }
 }
 
-pub const MoveFileError = error{ FileNotFound, Unexpected };
+pub const MoveFileError = error{ FileNotFound, AccessDenied, Unexpected };
 
 pub fn MoveFileEx(old_path: []const u8, new_path: []const u8, flags: DWORD) MoveFileError!void {
     const old_path_w = try sliceToPrefixedFileW(old_path);
@@ -840,6 +840,7 @@ pub fn MoveFileExW(old_path: [*:0]const u16, new_path: [*:0]const u16, flags: DW
     if (kernel32.MoveFileExW(old_path, new_path, flags) == 0) {
         switch (kernel32.GetLastError()) {
             .FILE_NOT_FOUND => return error.FileNotFound,
+            .ACCESS_DENIED => return error.AccessDenied,
             else => |err| return unexpectedError(err),
         }
     }