Unix::errno

Provide transparent access to errno

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 [email protected]

Source can be located at: https://github.com/lizmat/Unix-errno . Comments and Pull Requests are welcome.

COPYRIGHT AND LICENSE

Copyright 2018, 2021 Elizabeth Mattijsen

This library is free software; you can redistribute it and/or modify it under the Artistic License 2.0.

Unix::errno v0.0.4

Provide transparent access to errno

Authors

  • Elizabeth Mattijsen

License

Artistic-2.0

Dependencies

Test Dependencies

Provides

  • Unix::errno

The Camelia image is copyright 2009 by Larry Wall. "Raku" is trademark of the Yet Another Society. All rights reserved.