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-rw-r--r--serialize.h2350
1 files changed, 1175 insertions, 1175 deletions
diff --git a/serialize.h b/serialize.h
index a32d106a32..7ebc047f76 100644
--- a/serialize.h
+++ b/serialize.h
@@ -1,1175 +1,1175 @@
-// Copyright (c) 2009-2010 Satoshi Nakamoto
-// 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;
-
-static const int VERSION = 301;
-static const char* pszSubVer = ".0";
-
-
-
-
-
-/////////////////////////////////////////////////////////////////
-//
-// 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);
- uint64 nSizeRet = 0;
- if (chSize < UCHAR_MAX-2)
- {
- nSizeRet = chSize;
- }
- else if (chSize == UCHAR_MAX-2)
- {
- unsigned short nSize;
- READDATA(is, nSize);
- nSizeRet = nSize;
- }
- else if (chSize == UCHAR_MAX-1)
- {
- unsigned int nSize;
- READDATA(is, nSize);
- nSizeRet = nSize;
- }
- else
- {
- uint64 nSize;
- READDATA(is, nSize);
- nSizeRet = nSize;
- }
- if (nSizeRet > (uint64)INT_MAX)
- throw std::ios_base::failure("ReadCompactSize() : size too large");
- return nSizeRet;
-}
-
-
-
-//
-// 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)
- {
- unsigned int blk = min(nSize - i, (unsigned int)(1 + 4999999 / sizeof(T)));
- 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);
- }
-
- void insert(iterator it, vector<char>::const_iterator first, vector<char>::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);
- }
-};
+// Copyright (c) 2009-2010 Satoshi Nakamoto
+// 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;
+
+static const int VERSION = 301;
+static const char* pszSubVer = ".0";
+
+
+
+
+
+/////////////////////////////////////////////////////////////////
+//
+// 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);
+ uint64 nSizeRet = 0;
+ if (chSize < UCHAR_MAX-2)
+ {
+ nSizeRet = chSize;
+ }
+ else if (chSize == UCHAR_MAX-2)
+ {
+ unsigned short nSize;
+ READDATA(is, nSize);
+ nSizeRet = nSize;
+ }
+ else if (chSize == UCHAR_MAX-1)
+ {
+ unsigned int nSize;
+ READDATA(is, nSize);
+ nSizeRet = nSize;
+ }
+ else
+ {
+ uint64 nSize;
+ READDATA(is, nSize);
+ nSizeRet = nSize;
+ }
+ if (nSizeRet > (uint64)INT_MAX)
+ throw std::ios_base::failure("ReadCompactSize() : size too large");
+ return nSizeRet;
+}
+
+
+
+//
+// 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)
+ {
+ unsigned int blk = min(nSize - i, (unsigned int)(1 + 4999999 / sizeof(T)));
+ 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);
+ }
+
+ void insert(iterator it, vector<char>::const_iterator first, vector<char>::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);
+ }
+};
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-06 08:30:33 +0000