OS2::ExtAttr - Perl access to extended attributes.
use OS2::ExtAttr;
tie %ea, 'OS2::ExtAttr', 'my.file';
print $ea{eaname};
$ea{myfield} = 'value';
untie %ea;
The package provides low-level and high-level interface to Extended Attributes under OS/2.
The only argument of
tie() is a file name, or an open
file handle.
Note that all the changes of the tied hash happen in core, to propagate it to disk the tied hash should be
untie()ed or should go out of scope. Alternatively, one may use the low-level
update
method on the corresponding object. Example:
tied(%hash)->update;
Note also that setting/getting
EA flag is not supported by the high-level interface,
one should use the low-level interface instead. To use it on a tied hash
one needs undocumented way to find
eas give the tied hash.
Two low-level methods are supported by the objects:
copy() and
update(). The
copy() takes one argument: the name of a file to copy the attributes to, or an opened file handle.
update() takes no arguments, and is discussed above.
Three convenience functions are provided:
value($eas, $key) add($eas, $key, $value [, $flag]) replace($eas, $key, $value [, $flag])
The default value for flag is 0.
In addition, all the _ea_* and _ead_* functions defined in
EMX library are supported, with leading _ea/_ead stripped.
Ilya Zakharevich, ilya@math.ohio-state.edu
perl(1).
If rather than formatting bugs, you encounter substantive content errors in these documents, such as mistakes in the explanations or code, please use the perlbug utility included with the Perl distribution.