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lib/File/Locate/Iterator.pm  view on Meta::CPAN

#     failed then this is -1 and $it->rewind is not possible.
#
#     Normally fh_start is simply length($header) for a database starting at
#     the start of the file, but a database_fh arg which is positioned at
#     some offset into a file can be read and remembering an fh_start
#     position lets $it->rewind work on it too.
#
# fm
#     When using mmap, a File::Locate::Iterator::FileMap object which is the
#     cache entry for the database file, otherwise no such field.  This is
#     hung onto to keep it alive while in use.  $self->{'mref'} is
#     $fm->mmapref in this case.
#
# pos
#     When mref is not undef, an integer offset into the $$mref string which
#     is the current read position.  The file header is checked in new() so
#     the initial value is length($header), ie. 10, the position of the
#     first entry (or possibly EOF).
#
# entry
#     String of the last database entry returned, or no such field before