NAME
MogileFS::Client::CallbackFile
SYNOPSIS
my $mogfs = MogileFS::Client::Callback->new( ... )
open(my $read_fh, "<", "...") or die ...
my $eventual_length = -s $read_fh;
my $f = $mogfs->store_file_from_fh($class, $read_fh, $eventual_length, \%opts);
$f->($eventual_length, 0);
$f->("", 1); # indicate EOF
DESCRIPTION
This package inherits from MogileFS::Client::Async and provides an additional blocking API in which the data you wish to upload is read from a file when commanded by a callback function. function, allowing other processing to take place on data as you read it from disc or elsewhere.