NAME
Unix::errno - Provide transparent access to errno
SYNOPSIS
use Unix::errno; # exports errno, set_errno
set_errno(2);
say errno; # No such file or directory (errno = 2)
say "failed: {errno}"; # failed: No such file or directory
say +errno; # 2
DESCRIPTION
This module provides access to the errno
variable that is available on all Unix-like systems. Please note that in a threaded environment such as Raku is, the value of errno
is even more volatile than it has been already. For now, this issue is ignored.
CAVEATS
Since setting of any "extern" variables is not supported yet by NativeCall
, the setting of errno
is faked. If set_errno
is called, it will set the value only in a shadow copy. That value will be returned As long as the underlying "real" errno doesn't change (at which point that value will be returned.
AUTHOR
Elizabeth Mattijsen liz@raku.rocks
Source can be located at: https://github.com/lizmat/Unix-errno . Comments and Pull Requests are welcome.
If you like this module, or what I’m doing more generally, committing to a small sponsorship would mean a great deal to me!
COPYRIGHT AND LICENSE
Copyright 2018, 2021, 2024 Elizabeth Mattijsen
This library is free software; you can redistribute it and/or modify it under the Artistic License 2.0.