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twister-core/serialize.h

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update fSpent flag on wallet transactions if they're seen spent in case copy of wallet.dat was used elsewhere or restored from backup, better error dialog box if try to spend already spent coins, got rid of unused notebook with only one tab on main dialog, nicer looking About dialog, resize About dialog better on linux
15 years ago
// Copyright (c) 2009-2010 Satoshi Nakamoto
First commit
15 years ago
// Distributed under the MIT/X11 software license, see the accompanying
// file license.txt or http://www.opensource.org/licenses/mit-license.php.
#include <vector>
#include <map>
#include <boost/type_traits/is_fundamental.hpp>
#if defined(_MSC_VER) || defined(__BORLANDC__)
typedef __int64 int64;
typedef unsigned __int64 uint64;
#else
typedef long long int64;
typedef unsigned long long uint64;
#endif
#if defined(_MSC_VER) && _MSC_VER < 1300
#define for if (false) ; else for
#endif
class CScript;
class CDataStream;
class CAutoFile;
run as daemon without GUI, hooked wxApp::Initialize to ignore gtk-init-check failure if no GUI, fork to daemonize, rpc getinfo, getconnectioncount, getbalance, getgenerate, setgenerate, -- version 0.2.6
15 years ago
static const int VERSION = 206;
all builds are now with wxWidgets-2.9.0, we are now using UTF-8, added support for language translation file locale/<lang>/LC_MESSAGES/bitcoin.mo -- version 0.2.2
15 years ago
static const char* pszSubVer = ".0";
First commit
15 years ago
/////////////////////////////////////////////////////////////////
//
// Templates for serializing to anything that looks like a stream,
// i.e. anything that supports .read(char*, int) and .write(char*, int)
//
enum
{
// primary actions
SER_NETWORK = (1 << 0),
SER_DISK = (1 << 1),
SER_GETHASH = (1 << 2),
// modifiers
SER_SKIPSIG = (1 << 16),
SER_BLOCKHEADERONLY = (1 << 17),
};
#define IMPLEMENT_SERIALIZE(statements) \
unsigned int GetSerializeSize(int nType=0, int nVersion=VERSION) const \
{ \
CSerActionGetSerializeSize ser_action; \
const bool fGetSize = true; \
const bool fWrite = false; \
const bool fRead = false; \
unsigned int nSerSize = 0; \
ser_streamplaceholder s; \
s.nType = nType; \
s.nVersion = nVersion; \
{statements} \
return nSerSize; \
} \
template<typename Stream> \
void Serialize(Stream& s, int nType=0, int nVersion=VERSION) const \
{ \
CSerActionSerialize ser_action; \
const bool fGetSize = false; \
const bool fWrite = true; \
const bool fRead = false; \
unsigned int nSerSize = 0; \
{statements} \
} \
template<typename Stream> \
void Unserialize(Stream& s, int nType=0, int nVersion=VERSION) \
{ \
CSerActionUnserialize ser_action; \
const bool fGetSize = false; \
const bool fWrite = false; \
const bool fRead = true; \
unsigned int nSerSize = 0; \
{statements} \
}
#define READWRITE(obj) (nSerSize += ::SerReadWrite(s, (obj), nType, nVersion, ser_action))
//
// Basic types
//
#define WRITEDATA(s, obj) s.write((char*)&(obj), sizeof(obj))
#define READDATA(s, obj) s.read((char*)&(obj), sizeof(obj))
inline unsigned int GetSerializeSize(char a, int, int=0) { return sizeof(a); }
inline unsigned int GetSerializeSize(signed char a, int, int=0) { return sizeof(a); }
inline unsigned int GetSerializeSize(unsigned char a, int, int=0) { return sizeof(a); }
inline unsigned int GetSerializeSize(signed short a, int, int=0) { return sizeof(a); }
inline unsigned int GetSerializeSize(unsigned short a, int, int=0) { return sizeof(a); }
inline unsigned int GetSerializeSize(signed int a, int, int=0) { return sizeof(a); }
inline unsigned int GetSerializeSize(unsigned int a, int, int=0) { return sizeof(a); }
inline unsigned int GetSerializeSize(signed long a, int, int=0) { return sizeof(a); }
inline unsigned int GetSerializeSize(unsigned long a, int, int=0) { return sizeof(a); }
inline unsigned int GetSerializeSize(int64 a, int, int=0) { return sizeof(a); }
inline unsigned int GetSerializeSize(uint64 a, int, int=0) { return sizeof(a); }
inline unsigned int GetSerializeSize(float a, int, int=0) { return sizeof(a); }
inline unsigned int GetSerializeSize(double a, int, int=0) { return sizeof(a); }
template<typename Stream> inline void Serialize(Stream& s, char a, int, int=0) { WRITEDATA(s, a); }
template<typename Stream> inline void Serialize(Stream& s, signed char a, int, int=0) { WRITEDATA(s, a); }
template<typename Stream> inline void Serialize(Stream& s, unsigned char a, int, int=0) { WRITEDATA(s, a); }
template<typename Stream> inline void Serialize(Stream& s, signed short a, int, int=0) { WRITEDATA(s, a); }
template<typename Stream> inline void Serialize(Stream& s, unsigned short a, int, int=0) { WRITEDATA(s, a); }
template<typename Stream> inline void Serialize(Stream& s, signed int a, int, int=0) { WRITEDATA(s, a); }
template<typename Stream> inline void Serialize(Stream& s, unsigned int a, int, int=0) { WRITEDATA(s, a); }
template<typename Stream> inline void Serialize(Stream& s, signed long a, int, int=0) { WRITEDATA(s, a); }
template<typename Stream> inline void Serialize(Stream& s, unsigned long a, int, int=0) { WRITEDATA(s, a); }
template<typename Stream> inline void Serialize(Stream& s, int64 a, int, int=0) { WRITEDATA(s, a); }
template<typename Stream> inline void Serialize(Stream& s, uint64 a, int, int=0) { WRITEDATA(s, a); }
template<typename Stream> inline void Serialize(Stream& s, float a, int, int=0) { WRITEDATA(s, a); }
template<typename Stream> inline void Serialize(Stream& s, double a, int, int=0) { WRITEDATA(s, a); }
template<typename Stream> inline void Unserialize(Stream& s, char& a, int, int=0) { READDATA(s, a); }
template<typename Stream> inline void Unserialize(Stream& s, signed char& a, int, int=0) { READDATA(s, a); }
template<typename Stream> inline void Unserialize(Stream& s, unsigned char& a, int, int=0) { READDATA(s, a); }
template<typename Stream> inline void Unserialize(Stream& s, signed short& a, int, int=0) { READDATA(s, a); }
template<typename Stream> inline void Unserialize(Stream& s, unsigned short& a, int, int=0) { READDATA(s, a); }
template<typename Stream> inline void Unserialize(Stream& s, signed int& a, int, int=0) { READDATA(s, a); }
template<typename Stream> inline void Unserialize(Stream& s, unsigned int& a, int, int=0) { READDATA(s, a); }
template<typename Stream> inline void Unserialize(Stream& s, signed long& a, int, int=0) { READDATA(s, a); }
template<typename Stream> inline void Unserialize(Stream& s, unsigned long& a, int, int=0) { READDATA(s, a); }
template<typename Stream> inline void Unserialize(Stream& s, int64& a, int, int=0) { READDATA(s, a); }
template<typename Stream> inline void Unserialize(Stream& s, uint64& a, int, int=0) { READDATA(s, a); }
template<typename Stream> inline void Unserialize(Stream& s, float& a, int, int=0) { READDATA(s, a); }
template<typename Stream> inline void Unserialize(Stream& s, double& a, int, int=0) { READDATA(s, a); }
inline unsigned int GetSerializeSize(bool a, int, int=0) { return sizeof(char); }
template<typename Stream> inline void Serialize(Stream& s, bool a, int, int=0) { char f=a; WRITEDATA(s, f); }
template<typename Stream> inline void Unserialize(Stream& s, bool& a, int, int=0) { char f; READDATA(s, f); a=f; }
//
// Compact size
// size < 253 -- 1 byte
// size <= USHRT_MAX -- 3 bytes (253 + 2 bytes)
// size <= UINT_MAX -- 5 bytes (254 + 4 bytes)
// size > UINT_MAX -- 9 bytes (255 + 8 bytes)
//
inline unsigned int GetSizeOfCompactSize(uint64 nSize)
{
if (nSize < UCHAR_MAX-2) return sizeof(unsigned char);
else if (nSize <= USHRT_MAX) return sizeof(unsigned char) + sizeof(unsigned short);
else if (nSize <= UINT_MAX) return sizeof(unsigned char) + sizeof(unsigned int);
else return sizeof(unsigned char) + sizeof(uint64);
}
template<typename Stream>
void WriteCompactSize(Stream& os, uint64 nSize)
{
if (nSize < UCHAR_MAX-2)
{
unsigned char chSize = nSize;
WRITEDATA(os, chSize);
}
else if (nSize <= USHRT_MAX)
{
unsigned char chSize = UCHAR_MAX-2;
unsigned short xSize = nSize;
WRITEDATA(os, chSize);
WRITEDATA(os, xSize);
}
else if (nSize <= UINT_MAX)
{
unsigned char chSize = UCHAR_MAX-1;
unsigned int xSize = nSize;
WRITEDATA(os, chSize);
WRITEDATA(os, xSize);
}
else
{
unsigned char chSize = UCHAR_MAX;
WRITEDATA(os, chSize);
WRITEDATA(os, nSize);
}
return;
}
template<typename Stream>
uint64 ReadCompactSize(Stream& is)
{
unsigned char chSize;
READDATA(is, chSize);
simplify AddAddress, readcompactsize limit, fixed a 64-bit compile error in serialize.h, change status "# blocks" to "# confirmations" and widen the column.
15 years ago
uint64 nSizeRet = 0;
First commit
15 years ago
if (chSize < UCHAR_MAX-2)
{
simplify AddAddress, readcompactsize limit, fixed a 64-bit compile error in serialize.h, change status "# blocks" to "# confirmations" and widen the column.
15 years ago
nSizeRet = chSize;
First commit
15 years ago
}
else if (chSize == UCHAR_MAX-2)
{
unsigned short nSize;
READDATA(is, nSize);
simplify AddAddress, readcompactsize limit, fixed a 64-bit compile error in serialize.h, change status "# blocks" to "# confirmations" and widen the column.
15 years ago
nSizeRet = nSize;
First commit
15 years ago
}
else if (chSize == UCHAR_MAX-1)
{
unsigned int nSize;
READDATA(is, nSize);
simplify AddAddress, readcompactsize limit, fixed a 64-bit compile error in serialize.h, change status "# blocks" to "# confirmations" and widen the column.
15 years ago
nSizeRet = nSize;
First commit
15 years ago
}
else
{
uint64 nSize;
READDATA(is, nSize);
simplify AddAddress, readcompactsize limit, fixed a 64-bit compile error in serialize.h, change status "# blocks" to "# confirmations" and widen the column.
15 years ago
nSizeRet = nSize;
First commit
15 years ago
}
simplify AddAddress, readcompactsize limit, fixed a 64-bit compile error in serialize.h, change status "# blocks" to "# confirmations" and widen the column.
15 years ago
if (nSizeRet > (uint64)INT_MAX)
throw std::ios_base::failure("ReadCompactSize() : size too large");
return nSizeRet;
First commit
15 years ago
}
//
// Wrapper for serializing arrays and POD
// There's a clever template way to make arrays serialize normally, but MSVC6 doesn't support it
//
#define FLATDATA(obj) REF(CFlatData((char*)&(obj), (char*)&(obj) + sizeof(obj)))
class CFlatData
{
protected:
char* pbegin;
char* pend;
public:
CFlatData(void* pbeginIn, void* pendIn) : pbegin((char*)pbeginIn), pend((char*)pendIn) { }
char* begin() { return pbegin; }
const char* begin() const { return pbegin; }
char* end() { return pend; }
const char* end() const { return pend; }
unsigned int GetSerializeSize(int, int=0) const
{
return pend - pbegin;
}
template<typename Stream>
void Serialize(Stream& s, int, int=0) const
{
s.write(pbegin, pend - pbegin);
}
template<typename Stream>
void Unserialize(Stream& s, int, int=0)
{
s.read(pbegin, pend - pbegin);
}
};
//
// string stored as a fixed length field
//
template<std::size_t LEN>
class CFixedFieldString
{
protected:
const string* pcstr;
string* pstr;
public:
explicit CFixedFieldString(const string& str) : pcstr(&str), pstr(NULL) { }
explicit CFixedFieldString(string& str) : pcstr(&str), pstr(&str) { }
unsigned int GetSerializeSize(int, int=0) const
{
return LEN;
}
template<typename Stream>
void Serialize(Stream& s, int, int=0) const
{
char pszBuf[LEN];
strncpy(pszBuf, pcstr->c_str(), LEN);
s.write(pszBuf, LEN);
}
template<typename Stream>
void Unserialize(Stream& s, int, int=0)
{
if (pstr == NULL)
throw std::ios_base::failure("CFixedFieldString::Unserialize : trying to unserialize to const string");
char pszBuf[LEN+1];
s.read(pszBuf, LEN);
pszBuf[LEN] = '\0';
*pstr = pszBuf;
}
};
//
// Forward declarations
//
// string
template<typename C> unsigned int GetSerializeSize(const basic_string<C>& str, int, int=0);
template<typename Stream, typename C> void Serialize(Stream& os, const basic_string<C>& str, int, int=0);
template<typename Stream, typename C> void Unserialize(Stream& is, basic_string<C>& str, int, int=0);
// vector
template<typename T, typename A> unsigned int GetSerializeSize_impl(const std::vector<T, A>& v, int nType, int nVersion, const boost::true_type&);
template<typename T, typename A> unsigned int GetSerializeSize_impl(const std::vector<T, A>& v, int nType, int nVersion, const boost::false_type&);
template<typename T, typename A> inline unsigned int GetSerializeSize(const std::vector<T, A>& v, int nType, int nVersion=VERSION);
template<typename Stream, typename T, typename A> void Serialize_impl(Stream& os, const std::vector<T, A>& v, int nType, int nVersion, const boost::true_type&);
template<typename Stream, typename T, typename A> void Serialize_impl(Stream& os, const std::vector<T, A>& v, int nType, int nVersion, const boost::false_type&);
template<typename Stream, typename T, typename A> inline void Serialize(Stream& os, const std::vector<T, A>& v, int nType, int nVersion=VERSION);
template<typename Stream, typename T, typename A> void Unserialize_impl(Stream& is, std::vector<T, A>& v, int nType, int nVersion, const boost::true_type&);
template<typename Stream, typename T, typename A> void Unserialize_impl(Stream& is, std::vector<T, A>& v, int nType, int nVersion, const boost::false_type&);
template<typename Stream, typename T, typename A> inline void Unserialize(Stream& is, std::vector<T, A>& v, int nType, int nVersion=VERSION);
// others derived from vector
extern inline unsigned int GetSerializeSize(const CScript& v, int nType, int nVersion=VERSION);
template<typename Stream> void Serialize(Stream& os, const CScript& v, int nType, int nVersion=VERSION);
template<typename Stream> void Unserialize(Stream& is, CScript& v, int nType, int nVersion=VERSION);
// pair
template<typename K, typename T> unsigned int GetSerializeSize(const std::pair<K, T>& item, int nType, int nVersion=VERSION);
template<typename Stream, typename K, typename T> void Serialize(Stream& os, const std::pair<K, T>& item, int nType, int nVersion=VERSION);
template<typename Stream, typename K, typename T> void Unserialize(Stream& is, std::pair<K, T>& item, int nType, int nVersion=VERSION);
// map
template<typename K, typename T, typename Pred, typename A> unsigned int GetSerializeSize(const std::map<K, T, Pred, A>& m, int nType, int nVersion=VERSION);
template<typename Stream, typename K, typename T, typename Pred, typename A> void Serialize(Stream& os, const std::map<K, T, Pred, A>& m, int nType, int nVersion=VERSION);
template<typename Stream, typename K, typename T, typename Pred, typename A> void Unserialize(Stream& is, std::map<K, T, Pred, A>& m, int nType, int nVersion=VERSION);
// set
template<typename K, typename Pred, typename A> unsigned int GetSerializeSize(const std::set<K, Pred, A>& m, int nType, int nVersion=VERSION);
template<typename Stream, typename K, typename Pred, typename A> void Serialize(Stream& os, const std::set<K, Pred, A>& m, int nType, int nVersion=VERSION);
template<typename Stream, typename K, typename Pred, typename A> void Unserialize(Stream& is, std::set<K, Pred, A>& m, int nType, int nVersion=VERSION);
//
// If none of the specialized versions above matched, default to calling member function.
// "int nType" is changed to "long nType" to keep from getting an ambiguous overload error.
// The compiler will only cast int to long if none of the other templates matched.
// Thanks to Boost serialization for this idea.
//
template<typename T>
inline unsigned int GetSerializeSize(const T& a, long nType, int nVersion=VERSION)
{
return a.GetSerializeSize((int)nType, nVersion);
}
template<typename Stream, typename T>
inline void Serialize(Stream& os, const T& a, long nType, int nVersion=VERSION)
{
a.Serialize(os, (int)nType, nVersion);
}
template<typename Stream, typename T>
inline void Unserialize(Stream& is, T& a, long nType, int nVersion=VERSION)
{
a.Unserialize(is, (int)nType, nVersion);
}
//
// string
//
template<typename C>
unsigned int GetSerializeSize(const basic_string<C>& str, int, int)
{
return GetSizeOfCompactSize(str.size()) + str.size() * sizeof(str[0]);
}
template<typename Stream, typename C>
void Serialize(Stream& os, const basic_string<C>& str, int, int)
{
WriteCompactSize(os, str.size());
if (!str.empty())
os.write((char*)&str[0], str.size() * sizeof(str[0]));
}
template<typename Stream, typename C>
void Unserialize(Stream& is, basic_string<C>& str, int, int)
{
unsigned int nSize = ReadCompactSize(is);
str.resize(nSize);
if (nSize != 0)
is.read((char*)&str[0], nSize * sizeof(str[0]));
}
//
// vector
//
template<typename T, typename A>
unsigned int GetSerializeSize_impl(const std::vector<T, A>& v, int nType, int nVersion, const boost::true_type&)
{
return (GetSizeOfCompactSize(v.size()) + v.size() * sizeof(T));
}
template<typename T, typename A>
unsigned int GetSerializeSize_impl(const std::vector<T, A>& v, int nType, int nVersion, const boost::false_type&)
{
unsigned int nSize = GetSizeOfCompactSize(v.size());
for (typename std::vector<T, A>::const_iterator vi = v.begin(); vi != v.end(); ++vi)
nSize += GetSerializeSize((*vi), nType, nVersion);
return nSize;
}
template<typename T, typename A>
inline unsigned int GetSerializeSize(const std::vector<T, A>& v, int nType, int nVersion)
{
return GetSerializeSize_impl(v, nType, nVersion, boost::is_fundamental<T>());
}
template<typename Stream, typename T, typename A>
void Serialize_impl(Stream& os, const std::vector<T, A>& v, int nType, int nVersion, const boost::true_type&)
{
WriteCompactSize(os, v.size());
if (!v.empty())
os.write((char*)&v[0], v.size() * sizeof(T));
}
template<typename Stream, typename T, typename A>
void Serialize_impl(Stream& os, const std::vector<T, A>& v, int nType, int nVersion, const boost::false_type&)
{
WriteCompactSize(os, v.size());
for (typename std::vector<T, A>::const_iterator vi = v.begin(); vi != v.end(); ++vi)
::Serialize(os, (*vi), nType, nVersion);
}
template<typename Stream, typename T, typename A>
inline void Serialize(Stream& os, const std::vector<T, A>& v, int nType, int nVersion)
{
Serialize_impl(os, v, nType, nVersion, boost::is_fundamental<T>());
}
template<typename Stream, typename T, typename A>
void Unserialize_impl(Stream& is, std::vector<T, A>& v, int nType, int nVersion, const boost::true_type&)
{
//unsigned int nSize = ReadCompactSize(is);
//v.resize(nSize);
//is.read((char*)&v[0], nSize * sizeof(T));
// Limit size per read so bogus size value won't cause out of memory
v.clear();
unsigned int nSize = ReadCompactSize(is);
unsigned int i = 0;
while (i < nSize)
{
simplify AddAddress, readcompactsize limit, fixed a 64-bit compile error in serialize.h, change status "# blocks" to "# confirmations" and widen the column.
15 years ago
unsigned int blk = min(nSize - i, (unsigned int)(1 + 4999999 / sizeof(T)));
First commit
15 years ago
v.resize(i + blk);
is.read((char*)&v[i], blk * sizeof(T));
i += blk;
}
}
template<typename Stream, typename T, typename A>
void Unserialize_impl(Stream& is, std::vector<T, A>& v, int nType, int nVersion, const boost::false_type&)
{
//unsigned int nSize = ReadCompactSize(is);
//v.resize(nSize);
//for (std::vector<T, A>::iterator vi = v.begin(); vi != v.end(); ++vi)
// Unserialize(is, (*vi), nType, nVersion);
v.clear();
unsigned int nSize = ReadCompactSize(is);
unsigned int i = 0;
unsigned int nMid = 0;
while (nMid < nSize)
{
nMid += 5000000 / sizeof(T);
if (nMid > nSize)
nMid = nSize;
v.resize(nMid);
for (; i < nMid; i++)
Unserialize(is, v[i], nType, nVersion);
}
}
template<typename Stream, typename T, typename A>
inline void Unserialize(Stream& is, std::vector<T, A>& v, int nType, int nVersion)
{
Unserialize_impl(is, v, nType, nVersion, boost::is_fundamental<T>());
}
//
// others derived from vector
//
inline unsigned int GetSerializeSize(const CScript& v, int nType, int nVersion)
{
return GetSerializeSize((const vector<unsigned char>&)v, nType, nVersion);
}
template<typename Stream>
void Serialize(Stream& os, const CScript& v, int nType, int nVersion)
{
Serialize(os, (const vector<unsigned char>&)v, nType, nVersion);
}
template<typename Stream>
void Unserialize(Stream& is, CScript& v, int nType, int nVersion)
{
Unserialize(is, (vector<unsigned char>&)v, nType, nVersion);
}
//
// pair
//
template<typename K, typename T>
unsigned int GetSerializeSize(const std::pair<K, T>& item, int nType, int nVersion)
{
return GetSerializeSize(item.first, nType, nVersion) + GetSerializeSize(item.second, nType, nVersion);
}
template<typename Stream, typename K, typename T>
void Serialize(Stream& os, const std::pair<K, T>& item, int nType, int nVersion)
{
Serialize(os, item.first, nType, nVersion);
Serialize(os, item.second, nType, nVersion);
}
template<typename Stream, typename K, typename T>
void Unserialize(Stream& is, std::pair<K, T>& item, int nType, int nVersion)
{
Unserialize(is, item.first, nType, nVersion);
Unserialize(is, item.second, nType, nVersion);
}
//
// map
//
template<typename K, typename T, typename Pred, typename A>
unsigned int GetSerializeSize(const std::map<K, T, Pred, A>& m, int nType, int nVersion)
{
unsigned int nSize = GetSizeOfCompactSize(m.size());
for (typename std::map<K, T, Pred, A>::const_iterator mi = m.begin(); mi != m.end(); ++mi)
nSize += GetSerializeSize((*mi), nType, nVersion);
return nSize;
}
template<typename Stream, typename K, typename T, typename Pred, typename A>
void Serialize(Stream& os, const std::map<K, T, Pred, A>& m, int nType, int nVersion)
{
WriteCompactSize(os, m.size());
for (typename std::map<K, T, Pred, A>::const_iterator mi = m.begin(); mi != m.end(); ++mi)
Serialize(os, (*mi), nType, nVersion);
}
template<typename Stream, typename K, typename T, typename Pred, typename A>
void Unserialize(Stream& is, std::map<K, T, Pred, A>& m, int nType, int nVersion)
{
m.clear();
unsigned int nSize = ReadCompactSize(is);
typename std::map<K, T, Pred, A>::iterator mi = m.begin();
for (unsigned int i = 0; i < nSize; i++)
{
pair<K, T> item;
Unserialize(is, item, nType, nVersion);
mi = m.insert(mi, item);
}
}
//
// set
//
template<typename K, typename Pred, typename A>
unsigned int GetSerializeSize(const std::set<K, Pred, A>& m, int nType, int nVersion)
{
unsigned int nSize = GetSizeOfCompactSize(m.size());
for (typename std::set<K, Pred, A>::const_iterator it = m.begin(); it != m.end(); ++it)
nSize += GetSerializeSize((*it), nType, nVersion);
return nSize;
}
template<typename Stream, typename K, typename Pred, typename A>
void Serialize(Stream& os, const std::set<K, Pred, A>& m, int nType, int nVersion)
{
WriteCompactSize(os, m.size());
for (typename std::set<K, Pred, A>::const_iterator it = m.begin(); it != m.end(); ++it)
Serialize(os, (*it), nType, nVersion);
}
template<typename Stream, typename K, typename Pred, typename A>
void Unserialize(Stream& is, std::set<K, Pred, A>& m, int nType, int nVersion)
{
m.clear();
unsigned int nSize = ReadCompactSize(is);
typename std::set<K, Pred, A>::iterator it = m.begin();
for (unsigned int i = 0; i < nSize; i++)
{
K key;
Unserialize(is, key, nType, nVersion);
it = m.insert(it, key);
}
}
//
// Support for IMPLEMENT_SERIALIZE and READWRITE macro
//
class CSerActionGetSerializeSize { };
class CSerActionSerialize { };
class CSerActionUnserialize { };
template<typename Stream, typename T>
inline unsigned int SerReadWrite(Stream& s, const T& obj, int nType, int nVersion, CSerActionGetSerializeSize ser_action)
{
return ::GetSerializeSize(obj, nType, nVersion);
}
template<typename Stream, typename T>
inline unsigned int SerReadWrite(Stream& s, const T& obj, int nType, int nVersion, CSerActionSerialize ser_action)
{
::Serialize(s, obj, nType, nVersion);
return 0;
}
template<typename Stream, typename T>
inline unsigned int SerReadWrite(Stream& s, T& obj, int nType, int nVersion, CSerActionUnserialize ser_action)
{
::Unserialize(s, obj, nType, nVersion);
return 0;
}
struct ser_streamplaceholder
{
int nType;
int nVersion;
};
//
// Allocator that clears its contents before deletion
//
template<typename T>
struct secure_allocator : public std::allocator<T>
{
// MSVC8 default copy constructor is broken
typedef std::allocator<T> base;
typedef typename base::size_type size_type;
typedef typename base::difference_type difference_type;
typedef typename base::pointer pointer;
typedef typename base::const_pointer const_pointer;
typedef typename base::reference reference;
typedef typename base::const_reference const_reference;
typedef typename base::value_type value_type;
secure_allocator() throw() {}
secure_allocator(const secure_allocator& a) throw() : base(a) {}
~secure_allocator() throw() {}
template<typename _Other> struct rebind
{ typedef secure_allocator<_Other> other; };
void deallocate(T* p, std::size_t n)
{
if (p != NULL)
memset(p, 0, sizeof(T) * n);
allocator<T>::deallocate(p, n);
}
};
//
// Double ended buffer combining vector and stream-like interfaces.
// >> and << read and write unformatted data using the above serialization templates.
// Fills with data in linear time; some stringstream implementations take N^2 time.
//
class CDataStream
{
protected:
typedef vector<char, secure_allocator<char> > vector_type;
vector_type vch;
unsigned int nReadPos;
short state;
short exceptmask;
public:
int nType;
int nVersion;
typedef vector_type::allocator_type allocator_type;
typedef vector_type::size_type size_type;
typedef vector_type::difference_type difference_type;
typedef vector_type::reference reference;
typedef vector_type::const_reference const_reference;
typedef vector_type::value_type value_type;
typedef vector_type::iterator iterator;
typedef vector_type::const_iterator const_iterator;
typedef vector_type::reverse_iterator reverse_iterator;
explicit CDataStream(int nTypeIn=0, int nVersionIn=VERSION)
{
Init(nTypeIn, nVersionIn);
}
CDataStream(const_iterator pbegin, const_iterator pend, int nTypeIn=0, int nVersionIn=VERSION) : vch(pbegin, pend)
{
Init(nTypeIn, nVersionIn);
}
#if !defined(_MSC_VER) || _MSC_VER >= 1300
CDataStream(const char* pbegin, const char* pend, int nTypeIn=0, int nVersionIn=VERSION) : vch(pbegin, pend)
{
Init(nTypeIn, nVersionIn);
}
#endif
CDataStream(const vector_type& vchIn, int nTypeIn=0, int nVersionIn=VERSION) : vch(vchIn.begin(), vchIn.end())
{
Init(nTypeIn, nVersionIn);
}
CDataStream(const vector<char>& vchIn, int nTypeIn=0, int nVersionIn=VERSION) : vch(vchIn.begin(), vchIn.end())
{
Init(nTypeIn, nVersionIn);
}
CDataStream(const vector<unsigned char>& vchIn, int nTypeIn=0, int nVersionIn=VERSION) : vch((char*)&vchIn.begin()[0], (char*)&vchIn.end()[0])
{
Init(nTypeIn, nVersionIn);
}
void Init(int nTypeIn=0, int nVersionIn=VERSION)
{
nReadPos = 0;
nType = nTypeIn;
nVersion = nVersionIn;
state = 0;
exceptmask = ios::badbit | ios::failbit;
}
CDataStream& operator+=(const CDataStream& b)
{
vch.insert(vch.end(), b.begin(), b.end());
return *this;
}
friend CDataStream operator+(const CDataStream& a, const CDataStream& b)
{
CDataStream ret = a;
ret += b;
return (ret);
}
string str() const
{
return (string(begin(), end()));
}
//
// Vector subset
//
const_iterator begin() const { return vch.begin() + nReadPos; }
iterator begin() { return vch.begin() + nReadPos; }
const_iterator end() const { return vch.end(); }
iterator end() { return vch.end(); }
size_type size() const { return vch.size() - nReadPos; }
bool empty() const { return vch.size() == nReadPos; }
void resize(size_type n, value_type c=0) { vch.resize(n + nReadPos, c); }
void reserve(size_type n) { vch.reserve(n + nReadPos); }
const_reference operator[](size_type pos) const { return vch[pos + nReadPos]; }
reference operator[](size_type pos) { return vch[pos + nReadPos]; }
void clear() { vch.clear(); nReadPos = 0; }
iterator insert(iterator it, const char& x=char()) { return vch.insert(it, x); }
void insert(iterator it, size_type n, const char& x) { vch.insert(it, n, x); }
void insert(iterator it, const_iterator first, const_iterator last)
{
if (it == vch.begin() + nReadPos && last - first <= nReadPos)
{
// special case for inserting at the front when there's room
nReadPos -= (last - first);
memcpy(&vch[nReadPos], &first[0], last - first);
}
else
vch.insert(it, first, last);
}
#if !defined(_MSC_VER) || _MSC_VER >= 1300
void insert(iterator it, const char* first, const char* last)
{
if (it == vch.begin() + nReadPos && last - first <= nReadPos)
{
// special case for inserting at the front when there's room
nReadPos -= (last - first);
memcpy(&vch[nReadPos], &first[0], last - first);
}
else
vch.insert(it, first, last);
}
#endif
iterator erase(iterator it)
{
if (it == vch.begin() + nReadPos)
{
// special case for erasing from the front
if (++nReadPos >= vch.size())
{
// whenever we reach the end, we take the opportunity to clear the buffer
nReadPos = 0;
return vch.erase(vch.begin(), vch.end());
}
return vch.begin() + nReadPos;
}
else
return vch.erase(it);
}
iterator erase(iterator first, iterator last)
{
if (first == vch.begin() + nReadPos)
{
// special case for erasing from the front
if (last == vch.end())
{
nReadPos = 0;
return vch.erase(vch.begin(), vch.end());
}
else
{
nReadPos = (last - vch.begin());
return last;
}
}
else
return vch.erase(first, last);
}
inline void Compact()
{
vch.erase(vch.begin(), vch.begin() + nReadPos);
nReadPos = 0;
}
bool Rewind(size_type n)
{
// Rewind by n characters if the buffer hasn't been compacted yet
if (n > nReadPos)
return false;
nReadPos -= n;
return true;
}
//
// Stream subset
//
void setstate(short bits, const char* psz)
{
state |= bits;
if (state & exceptmask)
throw std::ios_base::failure(psz);
}
bool eof() const { return size() == 0; }
bool fail() const { return state & (ios::badbit | ios::failbit); }
bool good() const { return !eof() && (state == 0); }
void clear(short n) { state = n; } // name conflict with vector clear()
short exceptions() { return exceptmask; }
short exceptions(short mask) { short prev = exceptmask; exceptmask = mask; setstate(0, "CDataStream"); return prev; }
CDataStream* rdbuf() { return this; }
int in_avail() { return size(); }
void SetType(int n) { nType = n; }
int GetType() { return nType; }
void SetVersion(int n) { nVersion = n; }
int GetVersion() { return nVersion; }
void ReadVersion() { *this >> nVersion; }
void WriteVersion() { *this << nVersion; }
CDataStream& read(char* pch, int nSize)
{
// Read from the beginning of the buffer
assert(nSize >= 0);
unsigned int nReadPosNext = nReadPos + nSize;
if (nReadPosNext >= vch.size())
{
if (nReadPosNext > vch.size())
{
setstate(ios::failbit, "CDataStream::read() : end of data");
memset(pch, 0, nSize);
nSize = vch.size() - nReadPos;
}
memcpy(pch, &vch[nReadPos], nSize);
nReadPos = 0;
vch.clear();
return (*this);
}
memcpy(pch, &vch[nReadPos], nSize);
nReadPos = nReadPosNext;
return (*this);
}
CDataStream& ignore(int nSize)
{
// Ignore from the beginning of the buffer
assert(nSize >= 0);
unsigned int nReadPosNext = nReadPos + nSize;
if (nReadPosNext >= vch.size())
{
if (nReadPosNext > vch.size())
{
setstate(ios::failbit, "CDataStream::ignore() : end of data");
nSize = vch.size() - nReadPos;
}
nReadPos = 0;
vch.clear();
return (*this);
}
nReadPos = nReadPosNext;
return (*this);
}
CDataStream& write(const char* pch, int nSize)
{
// Write to the end of the buffer
assert(nSize >= 0);
vch.insert(vch.end(), pch, pch + nSize);
return (*this);
}
template<typename Stream>
void Serialize(Stream& s, int nType=0, int nVersion=VERSION) const
{
// Special case: stream << stream concatenates like stream += stream
if (!vch.empty())
s.write((char*)&vch[0], vch.size() * sizeof(vch[0]));
}
template<typename T>
unsigned int GetSerializeSize(const T& obj)
{
// Tells the size of the object if serialized to this stream
return ::GetSerializeSize(obj, nType, nVersion);
}
template<typename T>
CDataStream& operator<<(const T& obj)
{
// Serialize to this stream
::Serialize(*this, obj, nType, nVersion);
return (*this);
}
template<typename T>
CDataStream& operator>>(T& obj)
{
// Unserialize from this stream
::Unserialize(*this, obj, nType, nVersion);
return (*this);
}
};
#ifdef TESTCDATASTREAM
// VC6sp6
// CDataStream:
// n=1000 0 seconds
// n=2000 0 seconds
// n=4000 0 seconds
// n=8000 0 seconds
// n=16000 0 seconds
// n=32000 0 seconds
// n=64000 1 seconds
// n=128000 1 seconds
// n=256000 2 seconds
// n=512000 4 seconds
// n=1024000 8 seconds
// n=2048000 16 seconds
// n=4096000 32 seconds
// stringstream:
// n=1000 1 seconds
// n=2000 1 seconds
// n=4000 13 seconds
// n=8000 87 seconds
// n=16000 400 seconds
// n=32000 1660 seconds
// n=64000 6749 seconds
// n=128000 27241 seconds
// n=256000 109804 seconds
#include <iostream>
int main(int argc, char *argv[])
{
vector<unsigned char> vch(0xcc, 250);
printf("CDataStream:\n");
for (int n = 1000; n <= 4500000; n *= 2)
{
CDataStream ss;
time_t nStart = time(NULL);
for (int i = 0; i < n; i++)
ss.write((char*)&vch[0], vch.size());
printf("n=%-10d %d seconds\n", n, time(NULL) - nStart);
}
printf("stringstream:\n");
for (int n = 1000; n <= 4500000; n *= 2)
{
stringstream ss;
time_t nStart = time(NULL);
for (int i = 0; i < n; i++)
ss.write((char*)&vch[0], vch.size());
printf("n=%-10d %d seconds\n", n, time(NULL) - nStart);
}
}
#endif
//
// Automatic closing wrapper for FILE*
// - Will automatically close the file when it goes out of scope if not null.
// - If you're returning the file pointer, return file.release().
// - If you need to close the file early, use file.fclose() instead of fclose(file).
//
class CAutoFile
{
protected:
FILE* file;
short state;
short exceptmask;
public:
int nType;
int nVersion;
typedef FILE element_type;
CAutoFile(FILE* filenew=NULL, int nTypeIn=SER_DISK, int nVersionIn=VERSION)
{
file = filenew;
nType = nTypeIn;
nVersion = nVersionIn;
state = 0;
exceptmask = ios::badbit | ios::failbit;
}
~CAutoFile()
{
fclose();
}
void fclose()
{
if (file != NULL && file != stdin && file != stdout && file != stderr)
::fclose(file);
file = NULL;
}
FILE* release() { FILE* ret = file; file = NULL; return ret; }
operator FILE*() { return file; }
FILE* operator->() { return file; }
FILE& operator*() { return *file; }
FILE** operator&() { return &file; }
FILE* operator=(FILE* pnew) { return file = pnew; }
bool operator!() { return (file == NULL); }
//
// Stream subset
//
void setstate(short bits, const char* psz)
{
state |= bits;
if (state & exceptmask)
throw std::ios_base::failure(psz);
}
bool fail() const { return state & (ios::badbit | ios::failbit); }
bool good() const { return state == 0; }
void clear(short n = 0) { state = n; }
short exceptions() { return exceptmask; }
short exceptions(short mask) { short prev = exceptmask; exceptmask = mask; setstate(0, "CAutoFile"); return prev; }
void SetType(int n) { nType = n; }
int GetType() { return nType; }
void SetVersion(int n) { nVersion = n; }
int GetVersion() { return nVersion; }
void ReadVersion() { *this >> nVersion; }
void WriteVersion() { *this << nVersion; }
CAutoFile& read(char* pch, int nSize)
{
if (!file)
throw std::ios_base::failure("CAutoFile::read : file handle is NULL");
if (fread(pch, 1, nSize, file) != nSize)
setstate(ios::failbit, feof(file) ? "CAutoFile::read : end of file" : "CAutoFile::read : fread failed");
return (*this);
}
CAutoFile& write(const char* pch, int nSize)
{
if (!file)
throw std::ios_base::failure("CAutoFile::write : file handle is NULL");
if (fwrite(pch, 1, nSize, file) != nSize)
setstate(ios::failbit, "CAutoFile::write : write failed");
return (*this);
}
template<typename T>
unsigned int GetSerializeSize(const T& obj)
{
// Tells the size of the object if serialized to this stream
return ::GetSerializeSize(obj, nType, nVersion);
}
template<typename T>
CAutoFile& operator<<(const T& obj)
{
// Serialize to this stream
if (!file)
throw std::ios_base::failure("CAutoFile::operator<< : file handle is NULL");
::Serialize(*this, obj, nType, nVersion);
return (*this);
}
template<typename T>
CAutoFile& operator>>(T& obj)
{
// Unserialize from this stream
if (!file)
throw std::ios_base::failure("CAutoFile::operator>> : file handle is NULL");
::Unserialize(*this, obj, nType, nVersion);
return (*this);
}
};