Function unlinkatWasi [src]
Prototype
pub fn unlinkatWasi(dirfd: fd_t, file_path: []const u8, flags: u32) UnlinkatError!void Parameters
dirfd: fd_tfile_path: []const u8flags: u32 Possible Errors
In WASI, this error may occur when the file descriptor does not hold the required rights to unlink a resource by path relative to it.
On Windows, file paths cannot contain these characters: '/', '*', '?', '"', '<', '>', '|'
When passing AT.REMOVEDIR, this error occurs when the named directory is not empty.
WASI-only; file paths must be valid UTF-8.
Windows-only; file paths provided by the user must be valid WTF-8. https://simonsapin.github.io/wtf-8/
On Windows, \\server or \\server\share was not found.
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 unlinkatWasi(dirfd: fd_t, file_path: []const u8, flags: u32) UnlinkatError!void {
const remove_dir = (flags & AT.REMOVEDIR) != 0;
const res = if (remove_dir)
wasi.path_remove_directory(dirfd, file_path.ptr, file_path.len)
else
wasi.path_unlink_file(dirfd, file_path.ptr, file_path.len);
switch (res) {
.SUCCESS => return,
.ACCES => return error.AccessDenied,
.PERM => return error.PermissionDenied,
.BUSY => return error.FileBusy,
.FAULT => unreachable,
.IO => return error.FileSystem,
.ISDIR => return error.IsDir,
.LOOP => return error.SymLinkLoop,
.NAMETOOLONG => return error.NameTooLong,
.NOENT => return error.FileNotFound,
.NOTDIR => return error.NotDir,
.NOMEM => return error.SystemResources,
.ROFS => return error.ReadOnlyFileSystem,
.NOTEMPTY => return error.DirNotEmpty,
.NOTCAPABLE => return error.AccessDenied,
.ILSEQ => return error.InvalidUtf8,
.INVAL => unreachable, // invalid flags, or pathname has . as last component
.BADF => unreachable, // always a race condition
else => |err| return unexpectedErrno(err),
}
}