Function linkZ [src]
On WASI, both paths should be encoded as valid UTF-8.
On other platforms, both paths are an opaque sequence of bytes with no particular encoding.
Prototype
pub fn linkZ(oldpath: [*:0]const u8, newpath: [*:0]const u8) LinkError!void Parameters
oldpath: [*:0]const u8newpath: [*:0]const u8 Possible Errors
WASI-only; file paths must be valid UTF-8.
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 linkZ(oldpath: [*:0]const u8, newpath: [*:0]const u8) LinkError!void {
if (native_os == .wasi and !builtin.link_libc) {
return link(mem.sliceTo(oldpath, 0), mem.sliceTo(newpath, 0));
}
switch (errno(system.link(oldpath, newpath))) {
.SUCCESS => return,
.ACCES => return error.AccessDenied,
.DQUOT => return error.DiskQuota,
.EXIST => return error.PathAlreadyExists,
.FAULT => unreachable,
.IO => return error.FileSystem,
.LOOP => return error.SymLinkLoop,
.MLINK => return error.LinkQuotaExceeded,
.NAMETOOLONG => return error.NameTooLong,
.NOENT => return error.FileNotFound,
.NOMEM => return error.SystemResources,
.NOSPC => return error.NoSpaceLeft,
.PERM => return error.PermissionDenied,
.ROFS => return error.ReadOnlyFileSystem,
.XDEV => return error.NotSameFileSystem,
.INVAL => unreachable,
.ILSEQ => |err| if (native_os == .wasi)
return error.InvalidUtf8
else
return unexpectedErrno(err),
else => |err| return unexpectedErrno(err),
}
}