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Diffstat (limited to 'src/serialize.h')
-rw-r--r-- | src/serialize.h | 860 |
1 files changed, 860 insertions, 0 deletions
diff --git a/src/serialize.h b/src/serialize.h new file mode 100644 index 0000000000..53d8af142f --- /dev/null +++ b/src/serialize.h @@ -0,0 +1,860 @@ +// Copyright (c) 2009-2010 Satoshi Nakamoto +// Copyright (c) 2009-2014 The Bitcoin Core developers +// Distributed under the MIT software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +#ifndef BITCOIN_SERIALIZE_H +#define BITCOIN_SERIALIZE_H + +#include "compat/endian.h" + +#include <algorithm> +#include <assert.h> +#include <ios> +#include <limits> +#include <map> +#include <set> +#include <stdint.h> +#include <string> +#include <string.h> +#include <utility> +#include <vector> + +class CScript; + +static const unsigned int MAX_SIZE = 0x02000000; + +/** + * Used to bypass the rule against non-const reference to temporary + * where it makes sense with wrappers such as CFlatData or CTxDB + */ +template<typename T> +inline T& REF(const T& val) +{ + return const_cast<T&>(val); +} + +/** + * Used to acquire a non-const pointer "this" to generate bodies + * of const serialization operations from a template + */ +template<typename T> +inline T* NCONST_PTR(const T* val) +{ + return const_cast<T*>(val); +} + +/** + * Get begin pointer of vector (non-const version). + * @note These functions avoid the undefined case of indexing into an empty + * vector, as well as that of indexing after the end of the vector. + */ +template <class T, class TAl> +inline T* begin_ptr(std::vector<T,TAl>& v) +{ + return v.empty() ? NULL : &v[0]; +} +/** Get begin pointer of vector (const version) */ +template <class T, class TAl> +inline const T* begin_ptr(const std::vector<T,TAl>& v) +{ + return v.empty() ? NULL : &v[0]; +} +/** Get end pointer of vector (non-const version) */ +template <class T, class TAl> +inline T* end_ptr(std::vector<T,TAl>& v) +{ + return v.empty() ? NULL : (&v[0] + v.size()); +} +/** Get end pointer of vector (const version) */ +template <class T, class TAl> +inline const T* end_ptr(const std::vector<T,TAl>& v) +{ + return v.empty() ? NULL : (&v[0] + v.size()); +} + +/* + * Lowest-level serialization and conversion. + * @note Sizes of these types are verified in the tests + */ +template<typename Stream> inline void ser_writedata8(Stream &s, uint8_t obj) +{ + s.write((char*)&obj, 1); +} +template<typename Stream> inline void ser_writedata16(Stream &s, uint16_t obj) +{ + obj = htole16(obj); + s.write((char*)&obj, 2); +} +template<typename Stream> inline void ser_writedata32(Stream &s, uint32_t obj) +{ + obj = htole32(obj); + s.write((char*)&obj, 4); +} +template<typename Stream> inline void ser_writedata64(Stream &s, uint64_t obj) +{ + obj = htole64(obj); + s.write((char*)&obj, 8); +} +template<typename Stream> inline uint8_t ser_readdata8(Stream &s) +{ + uint8_t obj; + s.read((char*)&obj, 1); + return obj; +} +template<typename Stream> inline uint16_t ser_readdata16(Stream &s) +{ + uint16_t obj; + s.read((char*)&obj, 2); + return le16toh(obj); +} +template<typename Stream> inline uint32_t ser_readdata32(Stream &s) +{ + uint32_t obj; + s.read((char*)&obj, 4); + return le32toh(obj); +} +template<typename Stream> inline uint64_t ser_readdata64(Stream &s) +{ + uint64_t obj; + s.read((char*)&obj, 8); + return le64toh(obj); +} +inline uint64_t ser_double_to_uint64(double x) +{ + union { double x; uint64_t y; } tmp; + tmp.x = x; + return tmp.y; +} +inline uint32_t ser_float_to_uint32(float x) +{ + union { float x; uint32_t y; } tmp; + tmp.x = x; + return tmp.y; +} +inline double ser_uint64_to_double(uint64_t y) +{ + union { double x; uint64_t y; } tmp; + tmp.y = y; + return tmp.x; +} +inline float ser_uint32_to_float(uint32_t y) +{ + union { float x; uint32_t y; } tmp; + tmp.y = y; + return tmp.x; +} + + +///////////////////////////////////////////////////////////////// +// +// Templates for serializing to anything that looks like a stream, +// i.e. anything that supports .read(char*, size_t) and .write(char*, size_t) +// + +enum +{ + // primary actions + SER_NETWORK = (1 << 0), + SER_DISK = (1 << 1), + SER_GETHASH = (1 << 2), +}; + +#define READWRITE(obj) (::SerReadWrite(s, (obj), nType, nVersion, ser_action)) + +/** + * Implement three methods for serializable objects. These are actually wrappers over + * "SerializationOp" template, which implements the body of each class' serialization + * code. Adding "ADD_SERIALIZE_METHODS" in the body of the class causes these wrappers to be + * added as members. + */ +#define ADD_SERIALIZE_METHODS \ + size_t GetSerializeSize(int nType, int nVersion) const { \ + CSizeComputer s(nType, nVersion); \ + NCONST_PTR(this)->SerializationOp(s, CSerActionSerialize(), nType, nVersion);\ + return s.size(); \ + } \ + template<typename Stream> \ + void Serialize(Stream& s, int nType, int nVersion) const { \ + NCONST_PTR(this)->SerializationOp(s, CSerActionSerialize(), nType, nVersion);\ + } \ + template<typename Stream> \ + void Unserialize(Stream& s, int nType, int nVersion) { \ + SerializationOp(s, CSerActionUnserialize(), nType, nVersion); \ + } + +/* + * Basic Types + */ +inline unsigned int GetSerializeSize(char a, int, int=0) { return 1; } +inline unsigned int GetSerializeSize(int8_t a, int, int=0) { return 1; } +inline unsigned int GetSerializeSize(uint8_t a, int, int=0) { return 1; } +inline unsigned int GetSerializeSize(int16_t a, int, int=0) { return 2; } +inline unsigned int GetSerializeSize(uint16_t a, int, int=0) { return 2; } +inline unsigned int GetSerializeSize(int32_t a, int, int=0) { return 4; } +inline unsigned int GetSerializeSize(uint32_t a, int, int=0) { return 4; } +inline unsigned int GetSerializeSize(int64_t a, int, int=0) { return 8; } +inline unsigned int GetSerializeSize(uint64_t a, int, int=0) { return 8; } +inline unsigned int GetSerializeSize(float a, int, int=0) { return 4; } +inline unsigned int GetSerializeSize(double a, int, int=0) { return 8; } + +template<typename Stream> inline void Serialize(Stream& s, char a, int, int=0) { ser_writedata8(s, a); } // TODO Get rid of bare char +template<typename Stream> inline void Serialize(Stream& s, int8_t a, int, int=0) { ser_writedata8(s, a); } +template<typename Stream> inline void Serialize(Stream& s, uint8_t a, int, int=0) { ser_writedata8(s, a); } +template<typename Stream> inline void Serialize(Stream& s, int16_t a, int, int=0) { ser_writedata16(s, a); } +template<typename Stream> inline void Serialize(Stream& s, uint16_t a, int, int=0) { ser_writedata16(s, a); } +template<typename Stream> inline void Serialize(Stream& s, int32_t a, int, int=0) { ser_writedata32(s, a); } +template<typename Stream> inline void Serialize(Stream& s, uint32_t a, int, int=0) { ser_writedata32(s, a); } +template<typename Stream> inline void Serialize(Stream& s, int64_t a, int, int=0) { ser_writedata64(s, a); } +template<typename Stream> inline void Serialize(Stream& s, uint64_t a, int, int=0) { ser_writedata64(s, a); } +template<typename Stream> inline void Serialize(Stream& s, float a, int, int=0) { ser_writedata32(s, ser_float_to_uint32(a)); } +template<typename Stream> inline void Serialize(Stream& s, double a, int, int=0) { ser_writedata64(s, ser_double_to_uint64(a)); } + +template<typename Stream> inline void Unserialize(Stream& s, char& a, int, int=0) { a = ser_readdata8(s); } // TODO Get rid of bare char +template<typename Stream> inline void Unserialize(Stream& s, int8_t& a, int, int=0) { a = ser_readdata8(s); } +template<typename Stream> inline void Unserialize(Stream& s, uint8_t& a, int, int=0) { a = ser_readdata8(s); } +template<typename Stream> inline void Unserialize(Stream& s, int16_t& a, int, int=0) { a = ser_readdata16(s); } +template<typename Stream> inline void Unserialize(Stream& s, uint16_t& a, int, int=0) { a = ser_readdata16(s); } +template<typename Stream> inline void Unserialize(Stream& s, int32_t& a, int, int=0) { a = ser_readdata32(s); } +template<typename Stream> inline void Unserialize(Stream& s, uint32_t& a, int, int=0) { a = ser_readdata32(s); } +template<typename Stream> inline void Unserialize(Stream& s, int64_t& a, int, int=0) { a = ser_readdata64(s); } +template<typename Stream> inline void Unserialize(Stream& s, uint64_t& a, int, int=0) { a = ser_readdata64(s); } +template<typename Stream> inline void Unserialize(Stream& s, float& a, int, int=0) { a = ser_uint32_to_float(ser_readdata32(s)); } +template<typename Stream> inline void Unserialize(Stream& s, double& a, int, int=0) { a = ser_uint64_to_double(ser_readdata64(s)); } + +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; ser_writedata8(s, f); } +template<typename Stream> inline void Unserialize(Stream& s, bool& a, int, int=0) { char f=ser_readdata8(s); 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_t nSize) +{ + if (nSize < 253) return sizeof(unsigned char); + else if (nSize <= std::numeric_limits<unsigned short>::max()) return sizeof(unsigned char) + sizeof(unsigned short); + else if (nSize <= std::numeric_limits<unsigned int>::max()) return sizeof(unsigned char) + sizeof(unsigned int); + else return sizeof(unsigned char) + sizeof(uint64_t); +} + +template<typename Stream> +void WriteCompactSize(Stream& os, uint64_t nSize) +{ + if (nSize < 253) + { + ser_writedata8(os, nSize); + } + else if (nSize <= std::numeric_limits<unsigned short>::max()) + { + ser_writedata8(os, 253); + ser_writedata16(os, nSize); + } + else if (nSize <= std::numeric_limits<unsigned int>::max()) + { + ser_writedata8(os, 254); + ser_writedata32(os, nSize); + } + else + { + ser_writedata8(os, 255); + ser_writedata64(os, nSize); + } + return; +} + +template<typename Stream> +uint64_t ReadCompactSize(Stream& is) +{ + uint8_t chSize = ser_readdata8(is); + uint64_t nSizeRet = 0; + if (chSize < 253) + { + nSizeRet = chSize; + } + else if (chSize == 253) + { + nSizeRet = ser_readdata16(is); + if (nSizeRet < 253) + throw std::ios_base::failure("non-canonical ReadCompactSize()"); + } + else if (chSize == 254) + { + nSizeRet = ser_readdata32(is); + if (nSizeRet < 0x10000u) + throw std::ios_base::failure("non-canonical ReadCompactSize()"); + } + else + { + nSizeRet = ser_readdata64(is); + if (nSizeRet < 0x100000000ULL) + throw std::ios_base::failure("non-canonical ReadCompactSize()"); + } + if (nSizeRet > (uint64_t)MAX_SIZE) + throw std::ios_base::failure("ReadCompactSize(): size too large"); + return nSizeRet; +} + +/** + * Variable-length integers: bytes are a MSB base-128 encoding of the number. + * The high bit in each byte signifies whether another digit follows. To make + * sure the encoding is one-to-one, one is subtracted from all but the last digit. + * Thus, the byte sequence a[] with length len, where all but the last byte + * has bit 128 set, encodes the number: + * + * (a[len-1] & 0x7F) + sum(i=1..len-1, 128^i*((a[len-i-1] & 0x7F)+1)) + * + * Properties: + * * Very small (0-127: 1 byte, 128-16511: 2 bytes, 16512-2113663: 3 bytes) + * * Every integer has exactly one encoding + * * Encoding does not depend on size of original integer type + * * No redundancy: every (infinite) byte sequence corresponds to a list + * of encoded integers. + * + * 0: [0x00] 256: [0x81 0x00] + * 1: [0x01] 16383: [0xFE 0x7F] + * 127: [0x7F] 16384: [0xFF 0x00] + * 128: [0x80 0x00] 16511: [0x80 0xFF 0x7F] + * 255: [0x80 0x7F] 65535: [0x82 0xFD 0x7F] + * 2^32: [0x8E 0xFE 0xFE 0xFF 0x00] + */ + +template<typename I> +inline unsigned int GetSizeOfVarInt(I n) +{ + int nRet = 0; + while(true) { + nRet++; + if (n <= 0x7F) + break; + n = (n >> 7) - 1; + } + return nRet; +} + +template<typename Stream, typename I> +void WriteVarInt(Stream& os, I n) +{ + unsigned char tmp[(sizeof(n)*8+6)/7]; + int len=0; + while(true) { + tmp[len] = (n & 0x7F) | (len ? 0x80 : 0x00); + if (n <= 0x7F) + break; + n = (n >> 7) - 1; + len++; + } + do { + ser_writedata8(os, tmp[len]); + } while(len--); +} + +template<typename Stream, typename I> +I ReadVarInt(Stream& is) +{ + I n = 0; + while(true) { + unsigned char chData = ser_readdata8(is); + n = (n << 7) | (chData & 0x7F); + if (chData & 0x80) + n++; + else + return n; + } +} + +#define FLATDATA(obj) REF(CFlatData((char*)&(obj), (char*)&(obj) + sizeof(obj))) +#define VARINT(obj) REF(WrapVarInt(REF(obj))) +#define LIMITED_STRING(obj,n) REF(LimitedString< n >(REF(obj))) + +/** + * Wrapper for serializing arrays and POD. + */ +class CFlatData +{ +protected: + char* pbegin; + char* pend; +public: + CFlatData(void* pbeginIn, void* pendIn) : pbegin((char*)pbeginIn), pend((char*)pendIn) { } + template <class T, class TAl> + explicit CFlatData(std::vector<T,TAl> &v) + { + pbegin = (char*)begin_ptr(v); + pend = (char*)end_ptr(v); + } + 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); + } +}; + +template<typename I> +class CVarInt +{ +protected: + I &n; +public: + CVarInt(I& nIn) : n(nIn) { } + + unsigned int GetSerializeSize(int, int) const { + return GetSizeOfVarInt<I>(n); + } + + template<typename Stream> + void Serialize(Stream &s, int, int) const { + WriteVarInt<Stream,I>(s, n); + } + + template<typename Stream> + void Unserialize(Stream& s, int, int) { + n = ReadVarInt<Stream,I>(s); + } +}; + +template<size_t Limit> +class LimitedString +{ +protected: + std::string& string; +public: + LimitedString(std::string& string) : string(string) {} + + template<typename Stream> + void Unserialize(Stream& s, int, int=0) + { + size_t size = ReadCompactSize(s); + if (size > Limit) { + throw std::ios_base::failure("String length limit exceeded"); + } + string.resize(size); + if (size != 0) + s.read((char*)&string[0], size); + } + + template<typename Stream> + void Serialize(Stream& s, int, int=0) const + { + WriteCompactSize(s, string.size()); + if (!string.empty()) + s.write((char*)&string[0], string.size()); + } + + unsigned int GetSerializeSize(int, int=0) const + { + return GetSizeOfCompactSize(string.size()) + string.size(); + } +}; + +template<typename I> +CVarInt<I> WrapVarInt(I& n) { return CVarInt<I>(n); } + +/** + * Forward declarations + */ + +/** + * string + */ +template<typename C> unsigned int GetSerializeSize(const std::basic_string<C>& str, int, int=0); +template<typename Stream, typename C> void Serialize(Stream& os, const std::basic_string<C>& str, int, int=0); +template<typename Stream, typename C> void Unserialize(Stream& is, std::basic_string<C>& str, int, int=0); + +/** + * vector + * vectors of unsigned char are a special case and are intended to be serialized as a single opaque blob. + */ +template<typename T, typename A> unsigned int GetSerializeSize_impl(const std::vector<T, A>& v, int nType, int nVersion, const unsigned char&); +template<typename T, typename A, typename V> unsigned int GetSerializeSize_impl(const std::vector<T, A>& v, int nType, int nVersion, const V&); +template<typename T, typename A> inline unsigned int GetSerializeSize(const std::vector<T, A>& v, int nType, int nVersion); +template<typename Stream, typename T, typename A> void Serialize_impl(Stream& os, const std::vector<T, A>& v, int nType, int nVersion, const unsigned char&); +template<typename Stream, typename T, typename A, typename V> void Serialize_impl(Stream& os, const std::vector<T, A>& v, int nType, int nVersion, const V&); +template<typename Stream, typename T, typename A> inline void Serialize(Stream& os, const std::vector<T, A>& v, int nType, int nVersion); +template<typename Stream, typename T, typename A> void Unserialize_impl(Stream& is, std::vector<T, A>& v, int nType, int nVersion, const unsigned char&); +template<typename Stream, typename T, typename A, typename V> void Unserialize_impl(Stream& is, std::vector<T, A>& v, int nType, int nVersion, const V&); +template<typename Stream, typename T, typename A> inline void Unserialize(Stream& is, std::vector<T, A>& v, int nType, int nVersion); + +/** + * others derived from vector + */ +extern inline unsigned int GetSerializeSize(const CScript& v, int nType, int nVersion); +template<typename Stream> void Serialize(Stream& os, const CScript& v, int nType, int nVersion); +template<typename Stream> void Unserialize(Stream& is, CScript& v, int nType, int nVersion); + +/** + * pair + */ +template<typename K, typename T> unsigned int GetSerializeSize(const std::pair<K, T>& item, int nType, int nVersion); +template<typename Stream, typename K, typename T> void Serialize(Stream& os, const std::pair<K, T>& item, int nType, int nVersion); +template<typename Stream, typename K, typename T> void Unserialize(Stream& is, std::pair<K, T>& item, int nType, int 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); +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); +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); + +/** + * set + */ +template<typename K, typename Pred, typename A> unsigned int GetSerializeSize(const std::set<K, Pred, A>& m, int nType, int nVersion); +template<typename Stream, typename K, typename Pred, typename A> void Serialize(Stream& os, const std::set<K, Pred, A>& m, int nType, int nVersion); +template<typename Stream, typename K, typename Pred, typename A> void Unserialize(Stream& is, std::set<K, Pred, A>& m, int nType, int nVersion); + + + + + +/** + * 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) +{ + return a.GetSerializeSize((int)nType, nVersion); +} + +template<typename Stream, typename T> +inline void Serialize(Stream& os, const T& a, long nType, int nVersion) +{ + a.Serialize(os, (int)nType, nVersion); +} + +template<typename Stream, typename T> +inline void Unserialize(Stream& is, T& a, long nType, int nVersion) +{ + a.Unserialize(is, (int)nType, nVersion); +} + + + + + +/** + * string + */ +template<typename C> +unsigned int GetSerializeSize(const std::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 std::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, std::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 unsigned char&) +{ + return (GetSizeOfCompactSize(v.size()) + v.size() * sizeof(T)); +} + +template<typename T, typename A, typename V> +unsigned int GetSerializeSize_impl(const std::vector<T, A>& v, int nType, int nVersion, const V&) +{ + 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, T()); +} + + +template<typename Stream, typename T, typename A> +void Serialize_impl(Stream& os, const std::vector<T, A>& v, int nType, int nVersion, const unsigned char&) +{ + WriteCompactSize(os, v.size()); + if (!v.empty()) + os.write((char*)&v[0], v.size() * sizeof(T)); +} + +template<typename Stream, typename T, typename A, typename V> +void Serialize_impl(Stream& os, const std::vector<T, A>& v, int nType, int nVersion, const V&) +{ + 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, T()); +} + + +template<typename Stream, typename T, typename A> +void Unserialize_impl(Stream& is, std::vector<T, A>& v, int nType, int nVersion, const unsigned char&) +{ + // 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 = std::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, typename V> +void Unserialize_impl(Stream& is, std::vector<T, A>& v, int nType, int nVersion, const V&) +{ + 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, T()); +} + + + +/** + * others derived from vector + */ +inline unsigned int GetSerializeSize(const CScript& v, int nType, int nVersion) +{ + return GetSerializeSize((const std::vector<unsigned char>&)v, nType, nVersion); +} + +template<typename Stream> +void Serialize(Stream& os, const CScript& v, int nType, int nVersion) +{ + Serialize(os, (const std::vector<unsigned char>&)v, nType, nVersion); +} + +template<typename Stream> +void Unserialize(Stream& is, CScript& v, int nType, int nVersion) +{ + Unserialize(is, (std::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++) + { + std::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 ADD_SERIALIZE_METHODS and READWRITE macro + */ +struct CSerActionSerialize +{ + bool ForRead() const { return false; } +}; +struct CSerActionUnserialize +{ + bool ForRead() const { return true; } +}; + +template<typename Stream, typename T> +inline void SerReadWrite(Stream& s, const T& obj, int nType, int nVersion, CSerActionSerialize ser_action) +{ + ::Serialize(s, obj, nType, nVersion); +} + +template<typename Stream, typename T> +inline void SerReadWrite(Stream& s, T& obj, int nType, int nVersion, CSerActionUnserialize ser_action) +{ + ::Unserialize(s, obj, nType, nVersion); +} + + + + + + + + + +class CSizeComputer +{ +protected: + size_t nSize; + +public: + int nType; + int nVersion; + + CSizeComputer(int nTypeIn, int nVersionIn) : nSize(0), nType(nTypeIn), nVersion(nVersionIn) {} + + CSizeComputer& write(const char *psz, size_t nSize) + { + this->nSize += nSize; + return *this; + } + + template<typename T> + CSizeComputer& operator<<(const T& obj) + { + ::Serialize(*this, obj, nType, nVersion); + return (*this); + } + + size_t size() const { + return nSize; + } +}; + +#endif // BITCOIN_SERIALIZE_H |