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Code Issues Releases Activity

Tag class clean-up

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brain5lug 2016-10-11 00:19:34 +03:00
parent 6d63521622
commit 141fb78237
1 changed files with 64 additions and 73 deletions
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137
Tag.h
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@ -1,3 +1,6 @@
#ifndef TAG_H__
#define TAG_H__
/* /*
* Copyright (c) 2013-2016, The PurpleI2P Project * Copyright (c) 2013-2016, The PurpleI2P Project
* *
@ -6,92 +9,80 @@
* See full license text in LICENSE file at top of project tree * See full license text in LICENSE file at top of project tree
*/ */
#ifndef TAG_H__ #include <boost/static_assert.hpp>
#define TAG_H__ #include <string.h>
#include <string.h> /* memcpy */
#include "Base.h" #include "Base.h"
namespace i2p { namespace i2p {
namespace data { namespace data {
template<int sz>
class Tag template<size_t sz>
class Tag
{
BOOST_STATIC_ASSERT_MSG(sz % 8 == 0, "Tag size must be multiple of 8 bytes");
public:
Tag () = default;
Tag (const uint8_t * buf) { memcpy (m_Buf, buf, sz); }
bool operator== (const Tag& other) const { return !memcmp (m_Buf, other.m_Buf, sz); }
bool operator< (const Tag& other) const { return memcmp (m_Buf, other.m_Buf, sz) < 0; }
uint8_t * operator()() { return m_Buf; }
const uint8_t * operator()() const { return m_Buf; }
operator uint8_t * () { return m_Buf; }
operator const uint8_t * () const { return m_Buf; }
const uint8_t * data() const { return m_Buf; }
const uint64_t * GetLL () const { return ll; }
bool IsZero () const
{ {
public: for (size_t i = 0; i < sz/8; ++i)
if (ll[i]) return false;
return true;
}
Tag (const uint8_t * buf) { memcpy (m_Buf, buf, sz); }; void Fill(uint8_t c)
Tag (const Tag<sz>& ) = default; {
#ifndef _WIN32 // FIXME!!! msvs 2013 can't compile it memset(m_Buf, c, sz);
Tag (Tag<sz>&& ) = default; }
#endif
Tag () = default;
Tag<sz>& operator= (const Tag<sz>& ) = default;
#ifndef _WIN32
Tag<sz>& operator= (Tag<sz>&& ) = default;
#endif
uint8_t * operator()() { return m_Buf; };
const uint8_t * operator()() const { return m_Buf; };
operator uint8_t * () { return m_Buf; };
operator const uint8_t * () const { return m_Buf; };
const uint64_t * GetLL () const { return ll; };
bool operator== (const Tag<sz>& other) const { return !memcmp (m_Buf, other.m_Buf, sz); };
bool operator< (const Tag<sz>& other) const { return memcmp (m_Buf, other.m_Buf, sz) < 0; };
bool IsZero () const
{
for (int i = 0; i < sz/8; i++)
if (ll[i]) return false;
return true;
}
const uint8_t * data() const { return m_Buf; }
/** fill with a value */
void Fill(uint8_t c)
{
memset(m_Buf, c, sz);
}
std::string ToBase64 () const std::string ToBase64 () const
{ {
char str[sz*2]; char str[sz*2];
int l = i2p::data::ByteStreamToBase64 (m_Buf, sz, str, sz*2); size_t l = i2p::data::ByteStreamToBase64 (m_Buf, sz, str, sz*2);
str[l] = 0; return std::string (str, str + l);
return std::string (str); }
}
std::string ToBase32 () const std::string ToBase32 () const
{ {
char str[sz*2]; char str[sz*2];
int l = i2p::data::ByteStreamToBase32 (m_Buf, sz, str, sz*2); size_t l = i2p::data::ByteStreamToBase32 (m_Buf, sz, str, sz*2);
str[l] = 0; return std::string (str, str + l);
return std::string (str); }
}
void FromBase32 (const std::string& s) void FromBase32 (const std::string& s)
{ {
i2p::data::Base32ToByteStream (s.c_str (), s.length (), m_Buf, sz); i2p::data::Base32ToByteStream (s.c_str (), s.length (), m_Buf, sz);
} }
void FromBase64 (const std::string& s) void FromBase64 (const std::string& s)
{ {
i2p::data::Base64ToByteStream (s.c_str (), s.length (), m_Buf, sz); i2p::data::Base64ToByteStream (s.c_str (), s.length (), m_Buf, sz);
} }
private: private:
union // 8 bytes alignment union // 8 bytes aligned
{ {
uint8_t m_Buf[sz]; uint8_t m_Buf[sz];
uint64_t ll[sz/8]; uint64_t ll[sz/8];
};
}; };
};
} // data } // data
} // i2p } // i2p