misc/quazip/quacrc32.cpp
author Medo <smaxein@googlemail.com>
Tue, 24 Jul 2012 16:57:48 +0200
changeset 7355 5673e95ef647
parent 5752 ea95ee97c805
permissions -rw-r--r--
Hedgeroid: Misguided attempts at getting the connection lifecycle right. Committing this because it basically runs this way, so i might want to revert to it later :)

#include "quacrc32.h"

#include "zlib.h"

QuaCrc32::QuaCrc32()
{
	reset();
}

quint32 QuaCrc32::calculate(const QByteArray &data)
{
	return crc32( crc32(0L, Z_NULL, 0), (const Bytef*)data.data(), data.size() );
}

void QuaCrc32::reset()
{
	checksum = crc32(0L, Z_NULL, 0);
}

void QuaCrc32::update(const QByteArray &buf)
{
	checksum = crc32( checksum, (const Bytef*)buf.data(), buf.size() );
}

quint32 QuaCrc32::value()
{
	return checksum;
}