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redefrag codes of Hash

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hyzboy
2024-11-26 00:39:53 +08:00
parent 79bb27d9cb
commit 289cf37a6f
16 changed files with 259 additions and 312 deletions
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267
inc/hgl/util/hash/Hash.h
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@@ -23,23 +23,24 @@ namespace hgl
xxH32,
xxH64,
XXH3_64,
XXH3_128,
xxH3_64,
xxH3_128,
FNV1a,
// Murmur3,
// City64,
// City128,
Murmur3,
City32,
City64,
City128,
ENUM_CLASS_RANGE(Adler32,FNV1a)
ENUM_CLASS_RANGE(Adler32,City128)
};//enum HASH
/**
* Hash编码结构模板
*/
template<int SIZE> struct HashCode
template<size_t SIZE> struct HashCode
{
unsigned char code[SIZE];
uint8 code[SIZE]{};
public:
@@ -48,39 +49,15 @@ namespace hgl
public:
HashCode()
{
hgl_zero(code);
}
static constexpr int size()noexcept{return SIZE;}
static constexpr int size(){return SIZE;}
const uint8 operator[](int index)const{return code[index];}
const unsigned char operator[](int index)const
{
return code[index];
}
void CopyFrom (const void *ptr){memcpy(code,ptr,SIZE);}
void FromString (const char *str){ParseHexStr(code,str,SIZE);}
void CopyFrom(const void *ptr)
{
memcpy(code,ptr,SIZE);
}
void FromString(const char *str)
{
ParseHexStr(code,str,SIZE);
}
template<typename T>
void ToUpperString(T *str,const T gap_char=0) const
{
ToUpperHexStr<T>(str,code,SIZE,gap_char);
}
template<typename T>
void ToLowerString(T *str,const T gap_char=0) const
{
ToLowerHexStr<T>(str,code,SIZE,gap_char);
}
template<typename T> void ToUpperString(T *str,const T gap_char=0) const {ToUpperHexStr<T>(str,code,SIZE,gap_char);}
template<typename T> void ToLowerString(T *str,const T gap_char=0) const {ToLowerHexStr<T>(str,code,SIZE,gap_char);}
const int CompFunc(const HashCode<SIZE> &hash)const
{
@@ -100,36 +77,23 @@ namespace hgl
}
CompOperator(const HashCode<SIZE> &,CompFunc)
};//template<int SIZE> struct HashCode
using HashCodeCRC32 =HashCode<4> ;
using HashCodeAdler32 =HashCode<4> ;
using HashCodeMD5 =HashCode<16> ;
using HashCodeMD4 =HashCode<16> ;
using HashCodeSHA1 =HashCode<20> ;
using HashCodeSHA1LE =HashCode<20> ;
using HashCodeSHA256 =HashCode<32> ;
using HashCodeSHA512 =HashCode<64> ;
using HashCodexxH32 =HashCode<4> ;
using HashCodexxH64 =HashCode<8> ;
using HashCodeXXH3_64 =HashCode<8> ;
using HashCodeXXH3_128 =HashCode<16> ;
using HashCodeFNV1a =HashCode<4>;
const int hash_code_bytes[]={4,4,16,16,20,20,32,64,4,8,16,4}; //hash码长度
};//template<size_t SIZE> struct HashCode
/**
* 散列值计算功能基类
*/
class Hash ///散列值计算功能基类
{
AnsiString hash_name;
size_t hash_size;
public:
Hash(const size_t s,const AnsiString &n):hash_size(s),hash_name(n){}
virtual ~Hash()=default;
virtual void GetName(UTF8String &)const=0; ///<取得HASH算法的名称
virtual void GetName(UTF16String &)const=0; ///<取得HASH算法的名称
virtual const int GetHashBytes()const=0; ///<取得HASH码字节长度(MD4/MD5为16,SHA1为20)
void GetName (AnsiString &name)const {name=hash_name;} ///<取得HASH算法的名称
const size_t GetHashBytes()const noexcept {return hash_size;} ///<取得HASH码字节长度(MD4/MD5为16,SHA1为20)
virtual void Init()=0; ///<初始化散列值计算
virtual void Update(const void *,uint)=0; ///<提交新的数据
@@ -150,50 +114,7 @@ namespace hgl
template<HASH ha> Hash *CreateHash(); ///<创建一个hash值计算类实例
#define HGL_CREATE_HASH_FUNC(name) Hash *Create##name##Hash(); \
template<> inline Hash *CreateHash<HASH::name>(){return Create##name##Hash();}
HGL_CREATE_HASH_FUNC(Adler32)
HGL_CREATE_HASH_FUNC(CRC32)
HGL_CREATE_HASH_FUNC(MD4)
HGL_CREATE_HASH_FUNC(MD5)
HGL_CREATE_HASH_FUNC(SHA1)
HGL_CREATE_HASH_FUNC(SHA1LE)
HGL_CREATE_HASH_FUNC(SHA256)
HGL_CREATE_HASH_FUNC(SHA512)
HGL_CREATE_HASH_FUNC(xxH32)
HGL_CREATE_HASH_FUNC(xxH64)
HGL_CREATE_HASH_FUNC(XXH3_64)
HGL_CREATE_HASH_FUNC(XXH3_128)
HGL_CREATE_HASH_FUNC(FNV1a)
//#undef HGL_CREATE_HASH_FUNC
inline Hash *CreateHash(HASH ha)
{
RANGE_CHECK_RETURN_NULLPTR(ha)
using CreateHashFunc=Hash *(*)();
const CreateHashFunc func[(size_t)HASH::RANGE_SIZE]=
{
CreateAdler32Hash,
CreateCRC32Hash,
CreateMD4Hash,
CreateMD5Hash,
CreateSHA1Hash,
CreateSHA1LEHash,
CreateSHA256Hash,
CreateSHA512Hash,
CreatexxH32Hash,
CreatexxH64Hash,
CreateXXH3_64Hash,
CreateXXH3_128Hash,
CreateFNV1aHash
};
return func[(size_t)ha]();
}
Hash *CreateHash(const HASH ha); ///<创建一个hash值计算类实例
/**
* 计算一段数据的Hash值
@@ -220,141 +141,29 @@ namespace hgl
}
/**
* 计算一段数据的Hash值
* @param data 数据指针
* @param size 数据长度
* @param ha hash算法
* @param hash_code 计算后的hash值存放处
* 取得一个文件的hash值
* @param filename 文件名
* @param ha hash对象
* @param hash_code 计算后的hash存放处
* @return 是否计算成功
*/
inline bool CountHash(const void *data,int size,HASH ha,void *hash_code)
bool GetFileHash(const OSString &filename,Hash *ha,void *hash_code);
template<typename ha> bool GetFileHash(const OSString &filename,void *hash_code,size_t &hash_size)
{
RANGE_CHECK_RETURN_FALSE(ha)
if(!data||size<=0||!hash_code)return(false);
using CountHashFunc=bool (*)(const void *,int size,void *);
const CountHashFunc func[(size_t)HASH::RANGE_SIZE]=
{
CountHash<HASH::Adler32 >,
CountHash<HASH::CRC32 >,
CountHash<HASH::MD4 >,
CountHash<HASH::MD5 >,
CountHash<HASH::SHA1 >,
CountHash<HASH::SHA1LE >,
CountHash<HASH::SHA256 >,
CountHash<HASH::SHA512 >,
CountHash<HASH::xxH32 >,
CountHash<HASH::xxH64 >,
CountHash<HASH::XXH3_64 >,
CountHash<HASH::XXH3_128>,
CountHash<HASH::FNV1a >
};
return func[(size_t)ha](data,size,hash_code);
}
/**
* 计算一段数据的Hash值
* @param data 数据指针
* @param size 数据长度
* @param ha hash算法
* @param hash_str 计算后的hash值存放处
* @param litter 小写字母
* @return 是否计算成功
*/
template<HASH ha> bool CountHashStr(const void *data,int size,UTF8String &hash_str,bool litter=true)
{
if(!data||size<=0)return(false);
Hash *h=CreateHash<ha>();
if(!h)return(false);
const int hash_bytes=hash_code_bytes[(size_t)ha];
uint8 *hash_code=new uint8[hash_bytes];
u8char *hash_code_str=new u8char[1+(hash_bytes<<1)];
h->Init();
h->Update(data,size);
h->Final(hash_code);
if(!GetFileHash(filename,h,hash_code))
{
delete h;
return(false);
}
hash_size=h->GetHashBytes();
delete h;
DataToHexStr(hash_code_str,hash_code,hash_bytes,litter?LowerHexChar:UpperHexChar);
hash_str.SetInstance(hash_code_str,hash_bytes<<1);
delete[] hash_code;
return(true);
}
/**
* 计算一段数据的Hash值
* @param data 数据指针
* @param size 数据长度
* @param ha hash算法
* @param hash_str 计算后的hash值存放处
* @param litter 小写字母
* @return 是否计算成功
*/
inline bool CountHash(const void *data,int size,HASH ha,UTF8String &hash_str,bool litter=true)
{
RANGE_CHECK_RETURN_FALSE(ha)
if(!data||size<=0)return(false);
using CountHashFunc=bool (*)(const void *,int size,UTF8String &,bool);
const CountHashFunc func[(size_t)HASH::RANGE_SIZE]=
{
CountHashStr<HASH::Adler32 >,
CountHashStr<HASH::CRC32 >,
CountHashStr<HASH::MD4 >,
CountHashStr<HASH::MD5 >,
CountHashStr<HASH::SHA1 >,
CountHashStr<HASH::SHA1LE >,
CountHashStr<HASH::SHA256 >,
CountHashStr<HASH::SHA512 >,
CountHashStr<HASH::xxH32 >,
CountHashStr<HASH::xxH64 >,
CountHashStr<HASH::XXH3_64 >,
CountHashStr<HASH::XXH3_128 >,
CountHashStr<HASH::FNV1a >
};
return func[(size_t)ha](data,size,hash_str,litter);
}
#define HGL_COUNT_HASH_FUNC(name) inline bool Count##name(const void *data, int size, HashCode##name &hc) { return CountHash<HASH::name>(data, size, &hc); } \
inline bool Count##name(const void *data, int size, UTF8String &hash_str, bool litter = true) { return CountHashStr<HASH::name>(data, size, hash_str, litter); } \
inline bool Count##name(const UTF8String &str, UTF8String &hash_str, bool litter = true) { return CountHashStr<HASH::name>(str.c_str(), str.Length(), hash_str, litter); }
HGL_COUNT_HASH_FUNC(Adler32)
HGL_COUNT_HASH_FUNC(CRC32)
HGL_COUNT_HASH_FUNC(MD4)
HGL_COUNT_HASH_FUNC(MD5)
HGL_COUNT_HASH_FUNC(SHA1)
HGL_COUNT_HASH_FUNC(SHA1LE)
HGL_COUNT_HASH_FUNC(SHA256)
HGL_COUNT_HASH_FUNC(SHA512)
HGL_COUNT_HASH_FUNC(xxH32)
HGL_COUNT_HASH_FUNC(xxH64)
HGL_COUNT_HASH_FUNC(XXH3_64)
HGL_COUNT_HASH_FUNC(XXH3_128)
HGL_COUNT_HASH_FUNC(FNV1a)
#undef HGL_COUNT_HASH_FUNC
/**
* 取得一个文件的hash值
* @param filename 文件名
* @param ha hash算法
* @param hash_code 计算后的hash存放处
* @return 是否计算成功
*/
bool GetFileHash(const OSString &filename,HASH ha,void *hash_code);
/**
* 取得一个文件的hash值
* @param filename 文件名
@@ -363,7 +172,7 @@ namespace hgl
* @param litter 小写字母
* @return 是否计算成功
*/
bool GetFileHash(const OSString &filename,HASH ha,UTF8String &hash_str,bool litter=true);
//bool GetFileHash(const OSString &filename,HASH ha,UTF8String &hash_str,bool litter=true);
}//namespace util
}//namespace hgl
#endif//HGL_UTIL_HASH_INCLUDE