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Re: Re (2): Checksumming dynamically created media (code)

by bikeNomad (Priest)
on Jul 16, 2001 at 21:30 UTC ( [id://97103]=note: print w/replies, xml ) Need Help??


in reply to Re (2): Checksumming dynamically created media (code)
in thread Checksumming dynamically created media (code)

Compress::Zlib's crc32 function can update a CRC in pieces; you can call it with an existing CRC to update it. So you read a buffer full at a time and update your CRC:

use Compress::Zlib
my $crc = 0;
while ($fh->read($buffer))
{
   $crc = Compress::Zlib::crc32($buffer, $crc);
}

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