p7zip-rar/CPP/Common/XzCrc64Reg.cpp
2017-10-11 12:40:22 +02:00

43 lines
773 B
C++

// XzCrc64Reg.cpp
#include "StdAfx.h"
#include "../../C/CpuArch.h"
#include "../../C/XzCrc64.h"
#include "../Common/MyCom.h"
#include "../7zip/Common/RegisterCodec.h"
class CXzCrc64Hasher:
public IHasher,
public CMyUnknownImp
{
UInt64 _crc;
Byte mtDummy[1 << 7];
public:
CXzCrc64Hasher(): _crc(CRC64_INIT_VAL) {}
MY_UNKNOWN_IMP1(IHasher)
INTERFACE_IHasher(;)
};
STDMETHODIMP_(void) CXzCrc64Hasher::Init() throw()
{
_crc = CRC64_INIT_VAL;
}
STDMETHODIMP_(void) CXzCrc64Hasher::Update(const void *data, UInt32 size) throw()
{
_crc = Crc64Update(_crc, data, size);
}
STDMETHODIMP_(void) CXzCrc64Hasher::Final(Byte *digest) throw()
{
UInt64 val = CRC64_GET_DIGEST(_crc);
SetUi64(digest, val);
}
REGISTER_HASHER(CXzCrc64Hasher, 0x4, "CRC64", 8)