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1159 lines
39 KiB
1159 lines
39 KiB
// Copyright (c) 2009 Satoshi Nakamoto |
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// Distributed under the MIT/X11 software license, see the accompanying |
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// file license.txt or http://www.opensource.org/licenses/mit-license.php. |
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#include <vector> |
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#include <map> |
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#include <boost/type_traits/is_fundamental.hpp> |
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#if defined(_MSC_VER) || defined(__BORLANDC__) |
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typedef __int64 int64; |
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typedef unsigned __int64 uint64; |
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#else |
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typedef long long int64; |
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typedef unsigned long long uint64; |
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#endif |
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#if defined(_MSC_VER) && _MSC_VER < 1300 |
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#define for if (false) ; else for |
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#endif |
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class CScript; |
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class CDataStream; |
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class CAutoFile; |
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static const int VERSION = 106; |
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static const char* pszSubVer = " test10"; |
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///////////////////////////////////////////////////////////////// |
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// |
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// Templates for serializing to anything that looks like a stream, |
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// i.e. anything that supports .read(char*, int) and .write(char*, int) |
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// |
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enum |
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{ |
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// primary actions |
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SER_NETWORK = (1 << 0), |
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SER_DISK = (1 << 1), |
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SER_GETHASH = (1 << 2), |
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// modifiers |
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SER_SKIPSIG = (1 << 16), |
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SER_BLOCKHEADERONLY = (1 << 17), |
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}; |
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#define IMPLEMENT_SERIALIZE(statements) \ |
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unsigned int GetSerializeSize(int nType=0, int nVersion=VERSION) const \ |
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{ \ |
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CSerActionGetSerializeSize ser_action; \ |
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const bool fGetSize = true; \ |
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const bool fWrite = false; \ |
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const bool fRead = false; \ |
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unsigned int nSerSize = 0; \ |
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ser_streamplaceholder s; \ |
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s.nType = nType; \ |
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s.nVersion = nVersion; \ |
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{statements} \ |
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return nSerSize; \ |
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} \ |
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template<typename Stream> \ |
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void Serialize(Stream& s, int nType=0, int nVersion=VERSION) const \ |
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{ \ |
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CSerActionSerialize ser_action; \ |
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const bool fGetSize = false; \ |
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const bool fWrite = true; \ |
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const bool fRead = false; \ |
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unsigned int nSerSize = 0; \ |
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{statements} \ |
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} \ |
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template<typename Stream> \ |
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void Unserialize(Stream& s, int nType=0, int nVersion=VERSION) \ |
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{ \ |
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CSerActionUnserialize ser_action; \ |
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const bool fGetSize = false; \ |
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const bool fWrite = false; \ |
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const bool fRead = true; \ |
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unsigned int nSerSize = 0; \ |
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{statements} \ |
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} |
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#define READWRITE(obj) (nSerSize += ::SerReadWrite(s, (obj), nType, nVersion, ser_action)) |
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// |
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// Basic types |
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// |
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#define WRITEDATA(s, obj) s.write((char*)&(obj), sizeof(obj)) |
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#define READDATA(s, obj) s.read((char*)&(obj), sizeof(obj)) |
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inline unsigned int GetSerializeSize(char a, int, int=0) { return sizeof(a); } |
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inline unsigned int GetSerializeSize(signed char a, int, int=0) { return sizeof(a); } |
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inline unsigned int GetSerializeSize(unsigned char a, int, int=0) { return sizeof(a); } |
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inline unsigned int GetSerializeSize(signed short a, int, int=0) { return sizeof(a); } |
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inline unsigned int GetSerializeSize(unsigned short a, int, int=0) { return sizeof(a); } |
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inline unsigned int GetSerializeSize(signed int a, int, int=0) { return sizeof(a); } |
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inline unsigned int GetSerializeSize(unsigned int a, int, int=0) { return sizeof(a); } |
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inline unsigned int GetSerializeSize(signed long a, int, int=0) { return sizeof(a); } |
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inline unsigned int GetSerializeSize(unsigned long a, int, int=0) { return sizeof(a); } |
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inline unsigned int GetSerializeSize(int64 a, int, int=0) { return sizeof(a); } |
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inline unsigned int GetSerializeSize(uint64 a, int, int=0) { return sizeof(a); } |
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inline unsigned int GetSerializeSize(float a, int, int=0) { return sizeof(a); } |
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inline unsigned int GetSerializeSize(double a, int, int=0) { return sizeof(a); } |
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template<typename Stream> inline void Serialize(Stream& s, char a, int, int=0) { WRITEDATA(s, a); } |
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template<typename Stream> inline void Serialize(Stream& s, signed char a, int, int=0) { WRITEDATA(s, a); } |
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template<typename Stream> inline void Serialize(Stream& s, unsigned char a, int, int=0) { WRITEDATA(s, a); } |
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template<typename Stream> inline void Serialize(Stream& s, signed short a, int, int=0) { WRITEDATA(s, a); } |
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template<typename Stream> inline void Serialize(Stream& s, unsigned short a, int, int=0) { WRITEDATA(s, a); } |
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template<typename Stream> inline void Serialize(Stream& s, signed int a, int, int=0) { WRITEDATA(s, a); } |
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template<typename Stream> inline void Serialize(Stream& s, unsigned int a, int, int=0) { WRITEDATA(s, a); } |
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template<typename Stream> inline void Serialize(Stream& s, signed long a, int, int=0) { WRITEDATA(s, a); } |
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template<typename Stream> inline void Serialize(Stream& s, unsigned long a, int, int=0) { WRITEDATA(s, a); } |
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template<typename Stream> inline void Serialize(Stream& s, int64 a, int, int=0) { WRITEDATA(s, a); } |
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template<typename Stream> inline void Serialize(Stream& s, uint64 a, int, int=0) { WRITEDATA(s, a); } |
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template<typename Stream> inline void Serialize(Stream& s, float a, int, int=0) { WRITEDATA(s, a); } |
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template<typename Stream> inline void Serialize(Stream& s, double a, int, int=0) { WRITEDATA(s, a); } |
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template<typename Stream> inline void Unserialize(Stream& s, char& a, int, int=0) { READDATA(s, a); } |
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template<typename Stream> inline void Unserialize(Stream& s, signed char& a, int, int=0) { READDATA(s, a); } |
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template<typename Stream> inline void Unserialize(Stream& s, unsigned char& a, int, int=0) { READDATA(s, a); } |
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template<typename Stream> inline void Unserialize(Stream& s, signed short& a, int, int=0) { READDATA(s, a); } |
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template<typename Stream> inline void Unserialize(Stream& s, unsigned short& a, int, int=0) { READDATA(s, a); } |
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template<typename Stream> inline void Unserialize(Stream& s, signed int& a, int, int=0) { READDATA(s, a); } |
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template<typename Stream> inline void Unserialize(Stream& s, unsigned int& a, int, int=0) { READDATA(s, a); } |
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template<typename Stream> inline void Unserialize(Stream& s, signed long& a, int, int=0) { READDATA(s, a); } |
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template<typename Stream> inline void Unserialize(Stream& s, unsigned long& a, int, int=0) { READDATA(s, a); } |
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template<typename Stream> inline void Unserialize(Stream& s, int64& a, int, int=0) { READDATA(s, a); } |
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template<typename Stream> inline void Unserialize(Stream& s, uint64& a, int, int=0) { READDATA(s, a); } |
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template<typename Stream> inline void Unserialize(Stream& s, float& a, int, int=0) { READDATA(s, a); } |
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template<typename Stream> inline void Unserialize(Stream& s, double& a, int, int=0) { READDATA(s, a); } |
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inline unsigned int GetSerializeSize(bool a, int, int=0) { return sizeof(char); } |
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template<typename Stream> inline void Serialize(Stream& s, bool a, int, int=0) { char f=a; WRITEDATA(s, f); } |
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template<typename Stream> inline void Unserialize(Stream& s, bool& a, int, int=0) { char f; READDATA(s, f); a=f; } |
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// |
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// Compact size |
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// size < 253 -- 1 byte |
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// size <= USHRT_MAX -- 3 bytes (253 + 2 bytes) |
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// size <= UINT_MAX -- 5 bytes (254 + 4 bytes) |
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// size > UINT_MAX -- 9 bytes (255 + 8 bytes) |
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// |
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inline unsigned int GetSizeOfCompactSize(uint64 nSize) |
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{ |
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if (nSize < UCHAR_MAX-2) return sizeof(unsigned char); |
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else if (nSize <= USHRT_MAX) return sizeof(unsigned char) + sizeof(unsigned short); |
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else if (nSize <= UINT_MAX) return sizeof(unsigned char) + sizeof(unsigned int); |
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else return sizeof(unsigned char) + sizeof(uint64); |
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} |
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template<typename Stream> |
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void WriteCompactSize(Stream& os, uint64 nSize) |
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{ |
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if (nSize < UCHAR_MAX-2) |
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{ |
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unsigned char chSize = nSize; |
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WRITEDATA(os, chSize); |
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} |
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else if (nSize <= USHRT_MAX) |
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{ |
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unsigned char chSize = UCHAR_MAX-2; |
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unsigned short xSize = nSize; |
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WRITEDATA(os, chSize); |
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WRITEDATA(os, xSize); |
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} |
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else if (nSize <= UINT_MAX) |
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{ |
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unsigned char chSize = UCHAR_MAX-1; |
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unsigned int xSize = nSize; |
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WRITEDATA(os, chSize); |
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WRITEDATA(os, xSize); |
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} |
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else |
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{ |
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unsigned char chSize = UCHAR_MAX; |
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WRITEDATA(os, chSize); |
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WRITEDATA(os, nSize); |
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} |
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return; |
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} |
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template<typename Stream> |
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uint64 ReadCompactSize(Stream& is) |
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{ |
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unsigned char chSize; |
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READDATA(is, chSize); |
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if (chSize < UCHAR_MAX-2) |
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{ |
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return chSize; |
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} |
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else if (chSize == UCHAR_MAX-2) |
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{ |
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unsigned short nSize; |
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READDATA(is, nSize); |
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return nSize; |
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} |
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else if (chSize == UCHAR_MAX-1) |
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{ |
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unsigned int nSize; |
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READDATA(is, nSize); |
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return nSize; |
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} |
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else |
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{ |
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uint64 nSize; |
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READDATA(is, nSize); |
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return nSize; |
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} |
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} |
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// |
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// Wrapper for serializing arrays and POD |
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// There's a clever template way to make arrays serialize normally, but MSVC6 doesn't support it |
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// |
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#define FLATDATA(obj) REF(CFlatData((char*)&(obj), (char*)&(obj) + sizeof(obj))) |
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class CFlatData |
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{ |
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protected: |
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char* pbegin; |
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char* pend; |
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public: |
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CFlatData(void* pbeginIn, void* pendIn) : pbegin((char*)pbeginIn), pend((char*)pendIn) { } |
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char* begin() { return pbegin; } |
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const char* begin() const { return pbegin; } |
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char* end() { return pend; } |
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const char* end() const { return pend; } |
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unsigned int GetSerializeSize(int, int=0) const |
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{ |
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return pend - pbegin; |
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} |
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template<typename Stream> |
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void Serialize(Stream& s, int, int=0) const |
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{ |
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s.write(pbegin, pend - pbegin); |
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} |
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template<typename Stream> |
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void Unserialize(Stream& s, int, int=0) |
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{ |
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s.read(pbegin, pend - pbegin); |
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} |
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}; |
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// |
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// string stored as a fixed length field |
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// |
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template<std::size_t LEN> |
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class CFixedFieldString |
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{ |
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protected: |
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const string* pcstr; |
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string* pstr; |
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public: |
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explicit CFixedFieldString(const string& str) : pcstr(&str), pstr(NULL) { } |
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explicit CFixedFieldString(string& str) : pcstr(&str), pstr(&str) { } |
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unsigned int GetSerializeSize(int, int=0) const |
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{ |
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return LEN; |
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} |
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template<typename Stream> |
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void Serialize(Stream& s, int, int=0) const |
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{ |
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char pszBuf[LEN]; |
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strncpy(pszBuf, pcstr->c_str(), LEN); |
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s.write(pszBuf, LEN); |
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} |
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template<typename Stream> |
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void Unserialize(Stream& s, int, int=0) |
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{ |
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if (pstr == NULL) |
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throw std::ios_base::failure("CFixedFieldString::Unserialize : trying to unserialize to const string"); |
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char pszBuf[LEN+1]; |
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s.read(pszBuf, LEN); |
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pszBuf[LEN] = '\0'; |
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*pstr = pszBuf; |
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} |
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}; |
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// |
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// Forward declarations |
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// |
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// string |
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template<typename C> unsigned int GetSerializeSize(const basic_string<C>& str, int, int=0); |
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template<typename Stream, typename C> void Serialize(Stream& os, const basic_string<C>& str, int, int=0); |
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template<typename Stream, typename C> void Unserialize(Stream& is, basic_string<C>& str, int, int=0); |
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// vector |
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template<typename T, typename A> unsigned int GetSerializeSize_impl(const std::vector<T, A>& v, int nType, int nVersion, const boost::true_type&); |
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template<typename T, typename A> unsigned int GetSerializeSize_impl(const std::vector<T, A>& v, int nType, int nVersion, const boost::false_type&); |
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template<typename T, typename A> inline unsigned int GetSerializeSize(const std::vector<T, A>& v, int nType, int nVersion=VERSION); |
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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&); |
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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&); |
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template<typename Stream, typename T, typename A> inline void Serialize(Stream& os, const std::vector<T, A>& v, int nType, int nVersion=VERSION); |
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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&); |
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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&); |
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template<typename Stream, typename T, typename A> inline void Unserialize(Stream& is, std::vector<T, A>& v, int nType, int nVersion=VERSION); |
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// others derived from vector |
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extern inline unsigned int GetSerializeSize(const CScript& v, int nType, int nVersion=VERSION); |
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template<typename Stream> void Serialize(Stream& os, const CScript& v, int nType, int nVersion=VERSION); |
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template<typename Stream> void Unserialize(Stream& is, CScript& v, int nType, int nVersion=VERSION); |
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// pair |
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template<typename K, typename T> unsigned int GetSerializeSize(const std::pair<K, T>& item, int nType, int nVersion=VERSION); |
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template<typename Stream, typename K, typename T> void Serialize(Stream& os, const std::pair<K, T>& item, int nType, int nVersion=VERSION); |
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template<typename Stream, typename K, typename T> void Unserialize(Stream& is, std::pair<K, T>& item, int nType, int nVersion=VERSION); |
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// map |
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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); |
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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); |
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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); |
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// set |
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template<typename K, typename Pred, typename A> unsigned int GetSerializeSize(const std::set<K, Pred, A>& m, int nType, int nVersion=VERSION); |
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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); |
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template<typename Stream, typename K, typename Pred, typename A> void Unserialize(Stream& is, std::set<K, Pred, A>& m, int nType, int nVersion=VERSION); |
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// |
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// If none of the specialized versions above matched, default to calling member function. |
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// "int nType" is changed to "long nType" to keep from getting an ambiguous overload error. |
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// The compiler will only cast int to long if none of the other templates matched. |
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// Thanks to Boost serialization for this idea. |
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// |
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template<typename T> |
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inline unsigned int GetSerializeSize(const T& a, long nType, int nVersion=VERSION) |
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{ |
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return a.GetSerializeSize((int)nType, nVersion); |
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} |
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template<typename Stream, typename T> |
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inline void Serialize(Stream& os, const T& a, long nType, int nVersion=VERSION) |
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{ |
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a.Serialize(os, (int)nType, nVersion); |
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} |
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template<typename Stream, typename T> |
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inline void Unserialize(Stream& is, T& a, long nType, int nVersion=VERSION) |
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{ |
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a.Unserialize(is, (int)nType, nVersion); |
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} |
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// |
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// string |
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// |
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template<typename C> |
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unsigned int GetSerializeSize(const basic_string<C>& str, int, int) |
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{ |
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return GetSizeOfCompactSize(str.size()) + str.size() * sizeof(str[0]); |
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} |
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template<typename Stream, typename C> |
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void Serialize(Stream& os, const basic_string<C>& str, int, int) |
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{ |
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WriteCompactSize(os, str.size()); |
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if (!str.empty()) |
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os.write((char*)&str[0], str.size() * sizeof(str[0])); |
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} |
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template<typename Stream, typename C> |
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void Unserialize(Stream& is, basic_string<C>& str, int, int) |
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{ |
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unsigned int nSize = ReadCompactSize(is); |
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str.resize(nSize); |
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if (nSize != 0) |
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is.read((char*)&str[0], nSize * sizeof(str[0])); |
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} |
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// |
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// vector |
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// |
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template<typename T, typename A> |
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unsigned int GetSerializeSize_impl(const std::vector<T, A>& v, int nType, int nVersion, const boost::true_type&) |
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{ |
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return (GetSizeOfCompactSize(v.size()) + v.size() * sizeof(T)); |
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} |
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template<typename T, typename A> |
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unsigned int GetSerializeSize_impl(const std::vector<T, A>& v, int nType, int nVersion, const boost::false_type&) |
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{ |
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unsigned int nSize = GetSizeOfCompactSize(v.size()); |
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for (typename std::vector<T, A>::const_iterator vi = v.begin(); vi != v.end(); ++vi) |
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nSize += GetSerializeSize((*vi), nType, nVersion); |
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return nSize; |
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} |
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template<typename T, typename A> |
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inline unsigned int GetSerializeSize(const std::vector<T, A>& v, int nType, int nVersion) |
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{ |
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return GetSerializeSize_impl(v, nType, nVersion, boost::is_fundamental<T>()); |
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} |
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template<typename Stream, typename T, typename A> |
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void Serialize_impl(Stream& os, const std::vector<T, A>& v, int nType, int nVersion, const boost::true_type&) |
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{ |
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WriteCompactSize(os, v.size()); |
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if (!v.empty()) |
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os.write((char*)&v[0], v.size() * sizeof(T)); |
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} |
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template<typename Stream, typename T, typename A> |
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void Serialize_impl(Stream& os, const std::vector<T, A>& v, int nType, int nVersion, const boost::false_type&) |
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{ |
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WriteCompactSize(os, v.size()); |
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for (typename std::vector<T, A>::const_iterator vi = v.begin(); vi != v.end(); ++vi) |
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::Serialize(os, (*vi), nType, nVersion); |
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} |
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template<typename Stream, typename T, typename A> |
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inline void Serialize(Stream& os, const std::vector<T, A>& v, int nType, int nVersion) |
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{ |
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Serialize_impl(os, v, nType, nVersion, boost::is_fundamental<T>()); |
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} |
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template<typename Stream, typename T, typename A> |
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void Unserialize_impl(Stream& is, std::vector<T, A>& v, int nType, int nVersion, const boost::true_type&) |
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{ |
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//unsigned int nSize = ReadCompactSize(is); |
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//v.resize(nSize); |
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//is.read((char*)&v[0], nSize * sizeof(T)); |
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// Limit size per read so bogus size value won't cause out of memory |
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v.clear(); |
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unsigned int nSize = ReadCompactSize(is); |
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unsigned int i = 0; |
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while (i < nSize) |
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{ |
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unsigned int blk = min(nSize - i, 1 + 4999999 / sizeof(T)); |
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v.resize(i + blk); |
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is.read((char*)&v[i], blk * sizeof(T)); |
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i += blk; |
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} |
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} |
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template<typename Stream, typename T, typename A> |
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void Unserialize_impl(Stream& is, std::vector<T, A>& v, int nType, int nVersion, const boost::false_type&) |
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{ |
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//unsigned int nSize = ReadCompactSize(is); |
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//v.resize(nSize); |
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//for (std::vector<T, A>::iterator vi = v.begin(); vi != v.end(); ++vi) |
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// Unserialize(is, (*vi), nType, nVersion); |
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v.clear(); |
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unsigned int nSize = ReadCompactSize(is); |
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unsigned int i = 0; |
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unsigned int nMid = 0; |
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while (nMid < nSize) |
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{ |
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nMid += 5000000 / sizeof(T); |
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if (nMid > nSize) |
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nMid = nSize; |
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v.resize(nMid); |
|
for (; i < nMid; i++) |
|
Unserialize(is, v[i], nType, nVersion); |
|
} |
|
} |
|
|
|
template<typename Stream, typename T, typename A> |
|
inline void Unserialize(Stream& is, std::vector<T, A>& v, int nType, int nVersion) |
|
{ |
|
Unserialize_impl(is, v, nType, nVersion, boost::is_fundamental<T>()); |
|
} |
|
|
|
|
|
|
|
// |
|
// others derived from vector |
|
// |
|
inline unsigned int GetSerializeSize(const CScript& v, int nType, int nVersion) |
|
{ |
|
return GetSerializeSize((const vector<unsigned char>&)v, nType, nVersion); |
|
} |
|
|
|
template<typename Stream> |
|
void Serialize(Stream& os, const CScript& v, int nType, int nVersion) |
|
{ |
|
Serialize(os, (const vector<unsigned char>&)v, nType, nVersion); |
|
} |
|
|
|
template<typename Stream> |
|
void Unserialize(Stream& is, CScript& v, int nType, int nVersion) |
|
{ |
|
Unserialize(is, (vector<unsigned char>&)v, nType, nVersion); |
|
} |
|
|
|
|
|
|
|
// |
|
// pair |
|
// |
|
template<typename K, typename T> |
|
unsigned int GetSerializeSize(const std::pair<K, T>& item, int nType, int nVersion) |
|
{ |
|
return GetSerializeSize(item.first, nType, nVersion) + GetSerializeSize(item.second, nType, nVersion); |
|
} |
|
|
|
template<typename Stream, typename K, typename T> |
|
void Serialize(Stream& os, const std::pair<K, T>& item, int nType, int nVersion) |
|
{ |
|
Serialize(os, item.first, nType, nVersion); |
|
Serialize(os, item.second, nType, nVersion); |
|
} |
|
|
|
template<typename Stream, typename K, typename T> |
|
void Unserialize(Stream& is, std::pair<K, T>& item, int nType, int nVersion) |
|
{ |
|
Unserialize(is, item.first, nType, nVersion); |
|
Unserialize(is, item.second, nType, nVersion); |
|
} |
|
|
|
|
|
|
|
// |
|
// map |
|
// |
|
template<typename K, typename T, typename Pred, typename A> |
|
unsigned int GetSerializeSize(const std::map<K, T, Pred, A>& m, int nType, int nVersion) |
|
{ |
|
unsigned int nSize = GetSizeOfCompactSize(m.size()); |
|
for (typename std::map<K, T, Pred, A>::const_iterator mi = m.begin(); mi != m.end(); ++mi) |
|
nSize += GetSerializeSize((*mi), nType, nVersion); |
|
return nSize; |
|
} |
|
|
|
template<typename Stream, typename K, typename T, typename Pred, typename A> |
|
void Serialize(Stream& os, const std::map<K, T, Pred, A>& m, int nType, int nVersion) |
|
{ |
|
WriteCompactSize(os, m.size()); |
|
for (typename std::map<K, T, Pred, A>::const_iterator mi = m.begin(); mi != m.end(); ++mi) |
|
Serialize(os, (*mi), nType, nVersion); |
|
} |
|
|
|
template<typename Stream, typename K, typename T, typename Pred, typename A> |
|
void Unserialize(Stream& is, std::map<K, T, Pred, A>& m, int nType, int nVersion) |
|
{ |
|
m.clear(); |
|
unsigned int nSize = ReadCompactSize(is); |
|
typename std::map<K, T, Pred, A>::iterator mi = m.begin(); |
|
for (unsigned int i = 0; i < nSize; i++) |
|
{ |
|
pair<K, T> item; |
|
Unserialize(is, item, nType, nVersion); |
|
mi = m.insert(mi, item); |
|
} |
|
} |
|
|
|
|
|
|
|
// |
|
// set |
|
// |
|
template<typename K, typename Pred, typename A> |
|
unsigned int GetSerializeSize(const std::set<K, Pred, A>& m, int nType, int nVersion) |
|
{ |
|
unsigned int nSize = GetSizeOfCompactSize(m.size()); |
|
for (typename std::set<K, Pred, A>::const_iterator it = m.begin(); it != m.end(); ++it) |
|
nSize += GetSerializeSize((*it), nType, nVersion); |
|
return nSize; |
|
} |
|
|
|
template<typename Stream, typename K, typename Pred, typename A> |
|
void Serialize(Stream& os, const std::set<K, Pred, A>& m, int nType, int nVersion) |
|
{ |
|
WriteCompactSize(os, m.size()); |
|
for (typename std::set<K, Pred, A>::const_iterator it = m.begin(); it != m.end(); ++it) |
|
Serialize(os, (*it), nType, nVersion); |
|
} |
|
|
|
template<typename Stream, typename K, typename Pred, typename A> |
|
void Unserialize(Stream& is, std::set<K, Pred, A>& m, int nType, int nVersion) |
|
{ |
|
m.clear(); |
|
unsigned int nSize = ReadCompactSize(is); |
|
typename std::set<K, Pred, A>::iterator it = m.begin(); |
|
for (unsigned int i = 0; i < nSize; i++) |
|
{ |
|
K key; |
|
Unserialize(is, key, nType, nVersion); |
|
it = m.insert(it, key); |
|
} |
|
} |
|
|
|
|
|
|
|
// |
|
// Support for IMPLEMENT_SERIALIZE and READWRITE macro |
|
// |
|
class CSerActionGetSerializeSize { }; |
|
class CSerActionSerialize { }; |
|
class CSerActionUnserialize { }; |
|
|
|
template<typename Stream, typename T> |
|
inline unsigned int SerReadWrite(Stream& s, const T& obj, int nType, int nVersion, CSerActionGetSerializeSize ser_action) |
|
{ |
|
return ::GetSerializeSize(obj, nType, nVersion); |
|
} |
|
|
|
template<typename Stream, typename T> |
|
inline unsigned int SerReadWrite(Stream& s, const T& obj, int nType, int nVersion, CSerActionSerialize ser_action) |
|
{ |
|
::Serialize(s, obj, nType, nVersion); |
|
return 0; |
|
} |
|
|
|
template<typename Stream, typename T> |
|
inline unsigned int SerReadWrite(Stream& s, T& obj, int nType, int nVersion, CSerActionUnserialize ser_action) |
|
{ |
|
::Unserialize(s, obj, nType, nVersion); |
|
return 0; |
|
} |
|
|
|
struct ser_streamplaceholder |
|
{ |
|
int nType; |
|
int nVersion; |
|
}; |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// |
|
// Allocator that clears its contents before deletion |
|
// |
|
template<typename T> |
|
struct secure_allocator : public std::allocator<T> |
|
{ |
|
// MSVC8 default copy constructor is broken |
|
typedef std::allocator<T> base; |
|
typedef typename base::size_type size_type; |
|
typedef typename base::difference_type difference_type; |
|
typedef typename base::pointer pointer; |
|
typedef typename base::const_pointer const_pointer; |
|
typedef typename base::reference reference; |
|
typedef typename base::const_reference const_reference; |
|
typedef typename base::value_type value_type; |
|
secure_allocator() throw() {} |
|
secure_allocator(const secure_allocator& a) throw() : base(a) {} |
|
~secure_allocator() throw() {} |
|
template<typename _Other> struct rebind |
|
{ typedef secure_allocator<_Other> other; }; |
|
|
|
void deallocate(T* p, std::size_t n) |
|
{ |
|
if (p != NULL) |
|
memset(p, 0, sizeof(T) * n); |
|
allocator<T>::deallocate(p, n); |
|
} |
|
}; |
|
|
|
|
|
|
|
// |
|
// Double ended buffer combining vector and stream-like interfaces. |
|
// >> and << read and write unformatted data using the above serialization templates. |
|
// Fills with data in linear time; some stringstream implementations take N^2 time. |
|
// |
|
class CDataStream |
|
{ |
|
protected: |
|
typedef vector<char, secure_allocator<char> > vector_type; |
|
vector_type vch; |
|
unsigned int nReadPos; |
|
short state; |
|
short exceptmask; |
|
public: |
|
int nType; |
|
int nVersion; |
|
|
|
typedef vector_type::allocator_type allocator_type; |
|
typedef vector_type::size_type size_type; |
|
typedef vector_type::difference_type difference_type; |
|
typedef vector_type::reference reference; |
|
typedef vector_type::const_reference const_reference; |
|
typedef vector_type::value_type value_type; |
|
typedef vector_type::iterator iterator; |
|
typedef vector_type::const_iterator const_iterator; |
|
typedef vector_type::reverse_iterator reverse_iterator; |
|
|
|
explicit CDataStream(int nTypeIn=0, int nVersionIn=VERSION) |
|
{ |
|
Init(nTypeIn, nVersionIn); |
|
} |
|
|
|
CDataStream(const_iterator pbegin, const_iterator pend, int nTypeIn=0, int nVersionIn=VERSION) : vch(pbegin, pend) |
|
{ |
|
Init(nTypeIn, nVersionIn); |
|
} |
|
|
|
#if !defined(_MSC_VER) || _MSC_VER >= 1300 |
|
CDataStream(const char* pbegin, const char* pend, int nTypeIn=0, int nVersionIn=VERSION) : vch(pbegin, pend) |
|
{ |
|
Init(nTypeIn, nVersionIn); |
|
} |
|
#endif |
|
|
|
CDataStream(const vector_type& vchIn, int nTypeIn=0, int nVersionIn=VERSION) : vch(vchIn.begin(), vchIn.end()) |
|
{ |
|
Init(nTypeIn, nVersionIn); |
|
} |
|
|
|
CDataStream(const vector<char>& vchIn, int nTypeIn=0, int nVersionIn=VERSION) : vch(vchIn.begin(), vchIn.end()) |
|
{ |
|
Init(nTypeIn, nVersionIn); |
|
} |
|
|
|
CDataStream(const vector<unsigned char>& vchIn, int nTypeIn=0, int nVersionIn=VERSION) : vch((char*)&vchIn.begin()[0], (char*)&vchIn.end()[0]) |
|
{ |
|
Init(nTypeIn, nVersionIn); |
|
} |
|
|
|
void Init(int nTypeIn=0, int nVersionIn=VERSION) |
|
{ |
|
nReadPos = 0; |
|
nType = nTypeIn; |
|
nVersion = nVersionIn; |
|
state = 0; |
|
exceptmask = ios::badbit | ios::failbit; |
|
} |
|
|
|
CDataStream& operator+=(const CDataStream& b) |
|
{ |
|
vch.insert(vch.end(), b.begin(), b.end()); |
|
return *this; |
|
} |
|
|
|
friend CDataStream operator+(const CDataStream& a, const CDataStream& b) |
|
{ |
|
CDataStream ret = a; |
|
ret += b; |
|
return (ret); |
|
} |
|
|
|
string str() const |
|
{ |
|
return (string(begin(), end())); |
|
} |
|
|
|
|
|
// |
|
// Vector subset |
|
// |
|
const_iterator begin() const { return vch.begin() + nReadPos; } |
|
iterator begin() { return vch.begin() + nReadPos; } |
|
const_iterator end() const { return vch.end(); } |
|
iterator end() { return vch.end(); } |
|
size_type size() const { return vch.size() - nReadPos; } |
|
bool empty() const { return vch.size() == nReadPos; } |
|
void resize(size_type n, value_type c=0) { vch.resize(n + nReadPos, c); } |
|
void reserve(size_type n) { vch.reserve(n + nReadPos); } |
|
const_reference operator[](size_type pos) const { return vch[pos + nReadPos]; } |
|
reference operator[](size_type pos) { return vch[pos + nReadPos]; } |
|
void clear() { vch.clear(); nReadPos = 0; } |
|
iterator insert(iterator it, const char& x=char()) { return vch.insert(it, x); } |
|
void insert(iterator it, size_type n, const char& x) { vch.insert(it, n, x); } |
|
|
|
void insert(iterator it, const_iterator first, const_iterator last) |
|
{ |
|
if (it == vch.begin() + nReadPos && last - first <= nReadPos) |
|
{ |
|
// special case for inserting at the front when there's room |
|
nReadPos -= (last - first); |
|
memcpy(&vch[nReadPos], &first[0], last - first); |
|
} |
|
else |
|
vch.insert(it, first, last); |
|
} |
|
|
|
#if !defined(_MSC_VER) || _MSC_VER >= 1300 |
|
void insert(iterator it, const char* first, const char* last) |
|
{ |
|
if (it == vch.begin() + nReadPos && last - first <= nReadPos) |
|
{ |
|
// special case for inserting at the front when there's room |
|
nReadPos -= (last - first); |
|
memcpy(&vch[nReadPos], &first[0], last - first); |
|
} |
|
else |
|
vch.insert(it, first, last); |
|
} |
|
#endif |
|
|
|
iterator erase(iterator it) |
|
{ |
|
if (it == vch.begin() + nReadPos) |
|
{ |
|
// special case for erasing from the front |
|
if (++nReadPos >= vch.size()) |
|
{ |
|
// whenever we reach the end, we take the opportunity to clear the buffer |
|
nReadPos = 0; |
|
return vch.erase(vch.begin(), vch.end()); |
|
} |
|
return vch.begin() + nReadPos; |
|
} |
|
else |
|
return vch.erase(it); |
|
} |
|
|
|
iterator erase(iterator first, iterator last) |
|
{ |
|
if (first == vch.begin() + nReadPos) |
|
{ |
|
// special case for erasing from the front |
|
if (last == vch.end()) |
|
{ |
|
nReadPos = 0; |
|
return vch.erase(vch.begin(), vch.end()); |
|
} |
|
else |
|
{ |
|
nReadPos = (last - vch.begin()); |
|
return last; |
|
} |
|
} |
|
else |
|
return vch.erase(first, last); |
|
} |
|
|
|
inline void Compact() |
|
{ |
|
vch.erase(vch.begin(), vch.begin() + nReadPos); |
|
nReadPos = 0; |
|
} |
|
|
|
bool Rewind(size_type n) |
|
{ |
|
// Rewind by n characters if the buffer hasn't been compacted yet |
|
if (n > nReadPos) |
|
return false; |
|
nReadPos -= n; |
|
return true; |
|
} |
|
|
|
|
|
// |
|
// Stream subset |
|
// |
|
void setstate(short bits, const char* psz) |
|
{ |
|
state |= bits; |
|
if (state & exceptmask) |
|
throw std::ios_base::failure(psz); |
|
} |
|
|
|
bool eof() const { return size() == 0; } |
|
bool fail() const { return state & (ios::badbit | ios::failbit); } |
|
bool good() const { return !eof() && (state == 0); } |
|
void clear(short n) { state = n; } // name conflict with vector clear() |
|
short exceptions() { return exceptmask; } |
|
short exceptions(short mask) { short prev = exceptmask; exceptmask = mask; setstate(0, "CDataStream"); return prev; } |
|
CDataStream* rdbuf() { return this; } |
|
int in_avail() { return size(); } |
|
|
|
void SetType(int n) { nType = n; } |
|
int GetType() { return nType; } |
|
void SetVersion(int n) { nVersion = n; } |
|
int GetVersion() { return nVersion; } |
|
void ReadVersion() { *this >> nVersion; } |
|
void WriteVersion() { *this << nVersion; } |
|
|
|
CDataStream& read(char* pch, int nSize) |
|
{ |
|
// Read from the beginning of the buffer |
|
assert(nSize >= 0); |
|
unsigned int nReadPosNext = nReadPos + nSize; |
|
if (nReadPosNext >= vch.size()) |
|
{ |
|
if (nReadPosNext > vch.size()) |
|
{ |
|
setstate(ios::failbit, "CDataStream::read() : end of data"); |
|
memset(pch, 0, nSize); |
|
nSize = vch.size() - nReadPos; |
|
} |
|
memcpy(pch, &vch[nReadPos], nSize); |
|
nReadPos = 0; |
|
vch.clear(); |
|
return (*this); |
|
} |
|
memcpy(pch, &vch[nReadPos], nSize); |
|
nReadPos = nReadPosNext; |
|
return (*this); |
|
} |
|
|
|
CDataStream& ignore(int nSize) |
|
{ |
|
// Ignore from the beginning of the buffer |
|
assert(nSize >= 0); |
|
unsigned int nReadPosNext = nReadPos + nSize; |
|
if (nReadPosNext >= vch.size()) |
|
{ |
|
if (nReadPosNext > vch.size()) |
|
{ |
|
setstate(ios::failbit, "CDataStream::ignore() : end of data"); |
|
nSize = vch.size() - nReadPos; |
|
} |
|
nReadPos = 0; |
|
vch.clear(); |
|
return (*this); |
|
} |
|
nReadPos = nReadPosNext; |
|
return (*this); |
|
} |
|
|
|
CDataStream& write(const char* pch, int nSize) |
|
{ |
|
// Write to the end of the buffer |
|
assert(nSize >= 0); |
|
vch.insert(vch.end(), pch, pch + nSize); |
|
return (*this); |
|
} |
|
|
|
template<typename Stream> |
|
void Serialize(Stream& s, int nType=0, int nVersion=VERSION) const |
|
{ |
|
// Special case: stream << stream concatenates like stream += stream |
|
if (!vch.empty()) |
|
s.write((char*)&vch[0], vch.size() * sizeof(vch[0])); |
|
} |
|
|
|
template<typename T> |
|
unsigned int GetSerializeSize(const T& obj) |
|
{ |
|
// Tells the size of the object if serialized to this stream |
|
return ::GetSerializeSize(obj, nType, nVersion); |
|
} |
|
|
|
template<typename T> |
|
CDataStream& operator<<(const T& obj) |
|
{ |
|
// Serialize to this stream |
|
::Serialize(*this, obj, nType, nVersion); |
|
return (*this); |
|
} |
|
|
|
template<typename T> |
|
CDataStream& operator>>(T& obj) |
|
{ |
|
// Unserialize from this stream |
|
::Unserialize(*this, obj, nType, nVersion); |
|
return (*this); |
|
} |
|
}; |
|
|
|
#ifdef TESTCDATASTREAM |
|
// VC6sp6 |
|
// CDataStream: |
|
// n=1000 0 seconds |
|
// n=2000 0 seconds |
|
// n=4000 0 seconds |
|
// n=8000 0 seconds |
|
// n=16000 0 seconds |
|
// n=32000 0 seconds |
|
// n=64000 1 seconds |
|
// n=128000 1 seconds |
|
// n=256000 2 seconds |
|
// n=512000 4 seconds |
|
// n=1024000 8 seconds |
|
// n=2048000 16 seconds |
|
// n=4096000 32 seconds |
|
// stringstream: |
|
// n=1000 1 seconds |
|
// n=2000 1 seconds |
|
// n=4000 13 seconds |
|
// n=8000 87 seconds |
|
// n=16000 400 seconds |
|
// n=32000 1660 seconds |
|
// n=64000 6749 seconds |
|
// n=128000 27241 seconds |
|
// n=256000 109804 seconds |
|
#include <iostream> |
|
int main(int argc, char *argv[]) |
|
{ |
|
vector<unsigned char> vch(0xcc, 250); |
|
printf("CDataStream:\n"); |
|
for (int n = 1000; n <= 4500000; n *= 2) |
|
{ |
|
CDataStream ss; |
|
time_t nStart = time(NULL); |
|
for (int i = 0; i < n; i++) |
|
ss.write((char*)&vch[0], vch.size()); |
|
printf("n=%-10d %d seconds\n", n, time(NULL) - nStart); |
|
} |
|
printf("stringstream:\n"); |
|
for (int n = 1000; n <= 4500000; n *= 2) |
|
{ |
|
stringstream ss; |
|
time_t nStart = time(NULL); |
|
for (int i = 0; i < n; i++) |
|
ss.write((char*)&vch[0], vch.size()); |
|
printf("n=%-10d %d seconds\n", n, time(NULL) - nStart); |
|
} |
|
} |
|
#endif |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// |
|
// Automatic closing wrapper for FILE* |
|
// - Will automatically close the file when it goes out of scope if not null. |
|
// - If you're returning the file pointer, return file.release(). |
|
// - If you need to close the file early, use file.fclose() instead of fclose(file). |
|
// |
|
class CAutoFile |
|
{ |
|
protected: |
|
FILE* file; |
|
short state; |
|
short exceptmask; |
|
public: |
|
int nType; |
|
int nVersion; |
|
|
|
typedef FILE element_type; |
|
|
|
CAutoFile(FILE* filenew=NULL, int nTypeIn=SER_DISK, int nVersionIn=VERSION) |
|
{ |
|
file = filenew; |
|
nType = nTypeIn; |
|
nVersion = nVersionIn; |
|
state = 0; |
|
exceptmask = ios::badbit | ios::failbit; |
|
} |
|
|
|
~CAutoFile() |
|
{ |
|
fclose(); |
|
} |
|
|
|
void fclose() |
|
{ |
|
if (file != NULL && file != stdin && file != stdout && file != stderr) |
|
::fclose(file); |
|
file = NULL; |
|
} |
|
|
|
FILE* release() { FILE* ret = file; file = NULL; return ret; } |
|
operator FILE*() { return file; } |
|
FILE* operator->() { return file; } |
|
FILE& operator*() { return *file; } |
|
FILE** operator&() { return &file; } |
|
FILE* operator=(FILE* pnew) { return file = pnew; } |
|
bool operator!() { return (file == NULL); } |
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// |
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// Stream subset |
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// |
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void setstate(short bits, const char* psz) |
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{ |
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state |= bits; |
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if (state & exceptmask) |
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throw std::ios_base::failure(psz); |
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} |
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bool fail() const { return state & (ios::badbit | ios::failbit); } |
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bool good() const { return state == 0; } |
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void clear(short n = 0) { state = n; } |
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short exceptions() { return exceptmask; } |
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short exceptions(short mask) { short prev = exceptmask; exceptmask = mask; setstate(0, "CAutoFile"); return prev; } |
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void SetType(int n) { nType = n; } |
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int GetType() { return nType; } |
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void SetVersion(int n) { nVersion = n; } |
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int GetVersion() { return nVersion; } |
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void ReadVersion() { *this >> nVersion; } |
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void WriteVersion() { *this << nVersion; } |
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CAutoFile& read(char* pch, int nSize) |
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{ |
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if (!file) |
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throw std::ios_base::failure("CAutoFile::read : file handle is NULL"); |
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if (fread(pch, 1, nSize, file) != nSize) |
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setstate(ios::failbit, feof(file) ? "CAutoFile::read : end of file" : "CAutoFile::read : fread failed"); |
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return (*this); |
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} |
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CAutoFile& write(const char* pch, int nSize) |
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{ |
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if (!file) |
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throw std::ios_base::failure("CAutoFile::write : file handle is NULL"); |
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if (fwrite(pch, 1, nSize, file) != nSize) |
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setstate(ios::failbit, "CAutoFile::write : write failed"); |
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return (*this); |
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} |
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template<typename T> |
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unsigned int GetSerializeSize(const T& obj) |
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{ |
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// Tells the size of the object if serialized to this stream |
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return ::GetSerializeSize(obj, nType, nVersion); |
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} |
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template<typename T> |
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CAutoFile& operator<<(const T& obj) |
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{ |
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// Serialize to this stream |
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if (!file) |
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throw std::ios_base::failure("CAutoFile::operator<< : file handle is NULL"); |
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::Serialize(*this, obj, nType, nVersion); |
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return (*this); |
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} |
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template<typename T> |
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CAutoFile& operator>>(T& obj) |
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{ |
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// Unserialize from this stream |
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if (!file) |
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throw std::ios_base::failure("CAutoFile::operator>> : file handle is NULL"); |
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::Unserialize(*this, obj, nType, nVersion); |
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return (*this); |
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} |
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};
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