IO::Seekable - supply seek based methods for I/O objects
use IO::Seekable;
package IO::Something;
@ISA = qw(IO::Seekable);
IO::Seekable
does not have a constructor of its own as it is intended to be inherited by other IO::Handle
based objects. It provides methods which allow seeking of the file descriptors.
If the C functions fgetpos() and fsetpos() are available, then $io-<getpos
returns an opaque value that represents the current position of the IO::File, and $io->setpos(POS)
uses that value to return to a previously visited position.
See perlfunc for complete descriptions of each of the following supported IO::Seekable
methods, which are just front ends for the corresponding built-in functions:
$io->seek( POS, WHENCE )
$io->sysseek( POS, WHENCE )
$io->tell
perlfunc, "I/O Operators" in perlop, IO::Handle IO::File
Derived from FileHandle.pm by Graham Barr <gbarr@pobox.com>