9.34

CPP/Common/XzCrc64Reg.cpp

@@ -0,0 +1,54 @@
+// XzCrc64Reg.cpp
+
+#include "StdAfx.h"
+
+#include "../../C/CpuArch.h"
+#include "../../C/XzCrc64.h"
+
+#include "../Common/MyCom.h"
+
+#include "../7zip/ICoder.h"
+#include "../7zip/Common/RegisterCodec.h"
+
+class CXzCrc64Hasher:
+  public IHasher,
+  public CMyUnknownImp
+{
+  UInt64 _crc;
+public:
+  CXzCrc64Hasher(): _crc(CRC64_INIT_VAL) {}
+
+  MY_UNKNOWN_IMP
+
+  STDMETHOD_(void, Init)();
+  STDMETHOD_(void, Update)(const void *data, UInt32 size);
+  STDMETHOD_(void, Final)(Byte *digest);
+  STDMETHOD_(UInt32, GetDigestSize)();
+};
+
+STDMETHODIMP_(void) CXzCrc64Hasher::Init()
+{
+  _crc = CRC64_INIT_VAL;
+}
+
+STDMETHODIMP_(void) CXzCrc64Hasher::Update(const void *data, UInt32 size)
+{
+  _crc = Crc64Update(_crc, data, size);
+}
+
+STDMETHODIMP_(void) CXzCrc64Hasher::Final(Byte *digest)
+{
+  UInt64 val = CRC64_GET_DIGEST(_crc);
+  SetUi64(digest, val);
+}
+
+STDMETHODIMP_(UInt32) CXzCrc64Hasher::GetDigestSize()
+{
+  return 8;
+}
+
+static IHasher *CreateHasher() { return new CXzCrc64Hasher; }
+
+static CHasherInfo g_HasherInfo = { CreateHasher, 0x4, L"CRC64", 8 };
+
+REGISTER_HASHER(Crc64)