OS2::ExtAttr - Perl access to extended attributes. |
OS2::ExtAttr - Perl access to extended attributes.
use OS2::ExtAttr; tie %ea, 'OS2::ExtAttr', 'my.file'; print $ea{eaname}; $ea{myfield} = 'value'; untie %ea;
The package provides low-level and high-level interface to Extended Attributes under OS/2.
tie
The only argument of tie()
is a file name, or an open file handle.
Note that all the changes of the tied hash happen in core, to
propagate it to disk the tied hash should be untie()ed or should go
out of scope. Alternatively, one may use the low-level update
method on the corresponding object. Example:
tied(%hash)->update;
Note also that setting/getting EA flag is not supported by the
high-level interface, one should use the low-level interface
instead. To use it on a tied hash one needs undocumented way to find
eas
give the tied hash.
Two low-level methods are supported by the objects: copy()
and
update(). The copy()
takes one argument: the name of a file to copy
the attributes to, or an opened file handle. update()
takes no
arguments, and is discussed above.
Three convenience functions are provided:
value($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).
OS2::ExtAttr - Perl access to extended attributes. |