Function openDirW [src]

Same as openDir except the path parameter is WTF-16 LE encoded, NT-prefixed. This function asserts the target OS is Windows.

Prototype

pub fn openDirW(self: Dir, sub_path_w: [*:0]const u16, args: OpenOptions) OpenError!Dir

Parameters

self: Dirsub_path_w: [*:0]const u16args: OpenOptions

Possible Errors

AccessDenied

BadPathName

DeviceBusy

FileNotFound

InvalidUtf8

WASI-only; file paths must be valid UTF-8.

InvalidWtf8

Windows-only; file paths provided by the user must be valid WTF-8. https://simonsapin.github.io/wtf-8/

NameTooLong

NetworkNotFound

On Windows, \\server or \\server\share was not found.

NoDevice

NotDir

PermissionDenied

ProcessFdQuotaExceeded

SymLinkLoop

SystemFdQuotaExceeded

SystemResources

Unexpected UnexpectedError

The Operating System returned an undocumented error code.

This error is in theory not possible, but it would be better to handle this error than to invoke undefined behavior.

When this error code is observed, it usually means the Zig Standard Library needs a small patch to add the error code to the error set for the respective function.

Source

  pub fn openDirW(self: Dir, sub_path_w: [*:0]const u16, args: OpenOptions) OpenError!Dir {
    const w = windows;
    // TODO remove some of these flags if args.access_sub_paths is false
    const base_flags = w.STANDARD_RIGHTS_READ | w.FILE_READ_ATTRIBUTES | w.FILE_READ_EA |
        w.SYNCHRONIZE | w.FILE_TRAVERSE;
    const flags: u32 = if (args.iterate) base_flags | w.FILE_LIST_DIRECTORY else base_flags;
    const dir = self.makeOpenDirAccessMaskW(sub_path_w, flags, .{
        .no_follow = args.no_follow,
        .create_disposition = w.FILE_OPEN,
    }) catch |err| switch (err) {
        error.ReadOnlyFileSystem => unreachable,
        error.DiskQuota => unreachable,
        error.NoSpaceLeft => unreachable,
        error.PathAlreadyExists => unreachable,
        error.LinkQuotaExceeded => unreachable,
        else => |e| return e,
    };
    return dir;
}  