diff options
author | s_nakamoto <s_nakamoto@1a98c847-1fd6-4fd8-948a-caf3550aa51b> | 2010-08-29 16:58:15 +0000 |
---|---|---|
committer | s_nakamoto <s_nakamoto@1a98c847-1fd6-4fd8-948a-caf3550aa51b> | 2010-08-29 16:58:15 +0000 |
commit | 0a61b0df1224a5470bcddab302bc199ca5a9e356 (patch) | |
tree | 78560a03540864c3c6d6fcaf9c334f479cafc1bb /serialize.h | |
parent | 5b721607b1057df4dfe97f80d235ed372312f398 (diff) |
propset svn:eol-style native
git-svn-id: https://bitcoin.svn.sourceforge.net/svnroot/bitcoin/trunk@146 1a98c847-1fd6-4fd8-948a-caf3550aa51b
Diffstat (limited to 'serialize.h')
-rw-r--r-- | serialize.h | 2370 |
1 files changed, 1185 insertions, 1185 deletions
diff --git a/serialize.h b/serialize.h index d1dcea218d..3797159726 100644 --- a/serialize.h +++ b/serialize.h @@ -1,1185 +1,1185 @@ -// 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 unsigned int MAX_SIZE = 0x02000000;
-
-static const int VERSION = 311;
-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))
-
-#define READWRITEVER(obj) \
- do { \
- READWRITE((obj)); \
- if ((obj) == 10300) \
- (obj) = 300; \
- } while (false)
-
-
-
-
-
-
-//
-// 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)MAX_SIZE)
- 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 unsigned int MAX_SIZE = 0x02000000; + +static const int VERSION = 311; +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)) + +#define READWRITEVER(obj) \ + do { \ + READWRITE((obj)); \ + if ((obj) == 10300) \ + (obj) = 300; \ + } while (false) + + + + + + +// +// 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)MAX_SIZE) + 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); + } +}; |