Perl Modules /IO/Seekable.pm

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 IO::Seekable - supply seek based methods for I/O objects

 IO::Seekable - supply seek based methods for I/O objects

NAME

IO::Seekable - supply seek based methods for I/O objects

SYNOPSIS

    use IO::Seekable;
    package IO::Something;
    @ISA = qw(IO::Seekable);

DESCRIPTION

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

SEE ALSO

perlfunc, perlop/``I/O Operators'', the IO::Handle manpage the IO::File manpage

HISTORY

Derived from FileHandle.pm by Graham Barr <gbarr@pobox.com>

 IO::Seekable - supply seek based methods for I/O objects

Perl Module Viewer: Last Modified : Sun Jul 20 11:38:21 2008