#include <cstring>
#include <cstdio>
+#ifndef Q_MOC_RUN
#include <boost/type_traits/is_fundamental.hpp>
#include <boost/tuple/tuple.hpp>
#include <boost/tuple/tuple_comparison.hpp>
#include <boost/tuple/tuple_io.hpp>
+#endif
+
+#if defined __USE_MINGW_ANSI_STDIO
+#undef __USE_MINGW_ANSI_STDIO // This constant forces MinGW to conduct stupid behavior
+#endif
+#include <inttypes.h>
#include "allocators.h"
#include "version.h"
-typedef long long int64;
-typedef unsigned long long uint64;
class CScript;
class CDataStream;
// modifiers
SER_SKIPSIG = (1 << 16),
- SER_BLOCKHEADERONLY = (1 << 17),
+ SER_BLOCKHEADERONLY = (1 << 17)
+
};
#define IMPLEMENT_SERIALIZE(statements) \
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(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_t a, int, int=0) { return sizeof(a); }
+inline unsigned int GetSerializeSize(uint64_t 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, 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, 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_t a, int, int=0) { WRITEDATA(s, a); }
+template<typename Stream> inline void Serialize(Stream& s, uint64_t 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, 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, 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_t& a, int, int=0) { READDATA(s, a); }
+template<typename Stream> inline void Unserialize(Stream& s, uint64_t& 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); }
template<typename Stream> inline void Unserialize(Stream& s, bool& a, int, int=0) { char f; READDATA(s, f); a=f; }
-#ifndef THROW_WITH_STACKTRACE
-#define THROW_WITH_STACKTRACE(exception) \
-{ \
- LogStackTrace(); \
- throw (exception); \
-}
-void LogStackTrace();
-#endif
+
+
+
//
// Compact size
// size <= UINT_MAX -- 5 bytes (254 + 4 bytes)
// size > UINT_MAX -- 9 bytes (255 + 8 bytes)
//
-inline unsigned int GetSizeOfCompactSize(uint64 nSize)
+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);
+ else return sizeof(unsigned char) + sizeof(uint64_t);
}
template<typename Stream>
-void WriteCompactSize(Stream& os, uint64 nSize)
+void WriteCompactSize(Stream& os, uint64_t nSize)
{
if (nSize < 253)
{
- unsigned char chSize = nSize;
+ unsigned char chSize = (unsigned char)nSize;
WRITEDATA(os, chSize);
}
else if (nSize <= std::numeric_limits<unsigned short>::max())
{
unsigned char chSize = 253;
- unsigned short xSize = nSize;
+ unsigned short xSize = (unsigned short)nSize;
WRITEDATA(os, chSize);
WRITEDATA(os, xSize);
}
else if (nSize <= std::numeric_limits<unsigned int>::max())
{
unsigned char chSize = 254;
- unsigned int xSize = nSize;
+ unsigned int xSize = (unsigned int)nSize;
WRITEDATA(os, chSize);
WRITEDATA(os, xSize);
}
else
{
unsigned char chSize = 255;
- uint64 xSize = nSize;
+ uint64_t xSize = nSize;
WRITEDATA(os, chSize);
WRITEDATA(os, xSize);
}
}
template<typename Stream>
-uint64 ReadCompactSize(Stream& is)
+uint64_t ReadCompactSize(Stream& is)
{
unsigned char chSize;
READDATA(is, chSize);
- uint64 nSizeRet = 0;
+ uint64_t nSizeRet = 0;
if (chSize < 253)
{
nSizeRet = chSize;
}
else
{
- uint64 xSize;
+ uint64_t xSize;
READDATA(is, xSize);
nSizeRet = xSize;
}
- if (nSizeRet > (uint64)MAX_SIZE)
- THROW_WITH_STACKTRACE(std::ios_base::failure("ReadCompactSize() : size too large"));
+ 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
+// 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;
+ for ( ; ; ) {
+ 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;
+ for ( ; ; ) {
+ tmp[len] = (n & 0x7F) | (len ? 0x80 : 0x00);
+ if (n <= 0x7F)
+ break;
+ n = (n >> 7) - 1;
+ len++;
+ }
+ do {
+ WRITEDATA(os, tmp[len]);
+ } while(len--);
+}
+
+template<typename Stream, typename I>
+I ReadVarInt(Stream& is)
+{
+ I n = 0;
+ for ( ; ; ) {
+ unsigned char chData;
+ READDATA(is, chData);
+ n = (n << 7) | (chData & 0x7F);
+ if (chData & 0x80)
+ n++;
+ else
+ return n;
+ }
+}
-#define FLATDATA(obj) REF(CFlatData((char*)&(obj), (char*)&(obj) + sizeof(obj)))
+#define FLATDATA(obj) REF(CFlatData((char*)&(obj), (char*)&(obj) + sizeof(obj)))
+#define VARINT(obj) REF(WrapVarInt(REF(obj)))
/** Wrapper for serializing arrays and POD.
*/
unsigned int GetSerializeSize(int, int=0) const
{
- return pend - pbegin;
+ return (unsigned int)(pend - pbegin);
}
template<typename Stream>
void Serialize(Stream& s, int, int=0) const
{
- s.write(pbegin, pend - pbegin);
+ s.write(pbegin, (int)(pend - pbegin));
}
template<typename Stream>
}
};
+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<typename I>
+CVarInt<I> WrapVarInt(I& n) { return CVarInt<I>(n); }
+
//
// Forward declarations
//
template<typename C>
unsigned int GetSerializeSize(const std::basic_string<C>& str, int, int)
{
- return GetSizeOfCompactSize(str.size()) + str.size() * sizeof(str[0]);
+ return (unsigned int)(GetSizeOfCompactSize(str.size()) + str.size() * sizeof(str[0]));
}
template<typename Stream, typename C>
{
WriteCompactSize(os, str.size());
if (!str.empty())
- os.write((char*)&str[0], str.size() * sizeof(str[0]));
+ os.write((char*)&str[0], (int)(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);
+ unsigned int nSize = (unsigned int)(ReadCompactSize(is));
str.resize(nSize);
if (nSize != 0)
is.read((char*)&str[0], nSize * sizeof(str[0]));
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));
+ return (unsigned int)(GetSizeOfCompactSize(v.size()) + v.size() * sizeof(T));
}
template<typename T, typename A>
{
WriteCompactSize(os, v.size());
if (!v.empty())
- os.write((char*)&v[0], v.size() * sizeof(T));
+ os.write((char*)&v[0], (int)(v.size() * sizeof(T)));
}
template<typename Stream, typename T, typename A>
{
// Limit size per read so bogus size value won't cause out of memory
v.clear();
- unsigned int nSize = ReadCompactSize(is);
+ unsigned int nSize = (unsigned int)(ReadCompactSize(is));
unsigned int i = 0;
while (i < nSize)
{
void Unserialize_impl(Stream& is, std::vector<T, A>& v, int nType, int nVersion, const boost::false_type&)
{
v.clear();
- unsigned int nSize = ReadCompactSize(is);
+ unsigned int nSize = (unsigned int)(ReadCompactSize(is));
unsigned int i = 0;
unsigned int nMid = 0;
while (nMid < nSize)
void Unserialize(Stream& is, std::map<K, T, Pred, A>& m, int nType, int nVersion)
{
m.clear();
- unsigned int nSize = ReadCompactSize(is);
+ unsigned int nSize = (unsigned int)(ReadCompactSize(is));
typename std::map<K, T, Pred, A>::iterator mi = m.begin();
for (unsigned int i = 0; i < nSize; i++)
{
+typedef std::vector<char, zero_after_free_allocator<char> > CSerializeData;
/** Double ended buffer combining vector and stream-like interfaces.
*
class CDataStream
{
protected:
- typedef std::vector<char, zero_after_free_allocator<char> > vector_type;
+ typedef CSerializeData vector_type;
vector_type vch;
unsigned int nReadPos;
short state;
Init(nTypeIn, nVersionIn);
}
- CDataStream(const std::vector<unsigned char>& vchIn, int nTypeIn, int nVersionIn) : vch((char*)&vchIn.begin()[0], (char*)&vchIn.end()[0])
+ CDataStream(const std::vector<unsigned char>& vchIn, int nTypeIn, int nVersionIn) : vch(vchIn.begin(), vchIn.end())
{
Init(nTypeIn, nVersionIn);
}
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); }
+#ifdef _MSC_VER
void insert(iterator it, const_iterator first, const_iterator last)
{
assert(last - first >= 0);
if (it == vch.begin() + nReadPos && (unsigned int)(last - first) <= nReadPos)
{
// special case for inserting at the front when there's room
- nReadPos -= (last - first);
+ nReadPos -= (unsigned int)(last - first);
memcpy(&vch[nReadPos], &first[0], last - first);
}
else
vch.insert(it, first, last);
}
+#endif
+#ifndef _MSC_VER
+ void insert(iterator it, std::vector<char>::const_iterator first, std::vector<char>::const_iterator last)
+ {
+ assert(last - first >= 0);
+ if (it == vch.begin() + nReadPos && (unsigned int)(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
#if !defined(_MSC_VER) || _MSC_VER >= 1300
void insert(iterator it, const char* first, const char* last)
if (it == vch.begin() + nReadPos && (unsigned int)(last - first) <= nReadPos)
{
// special case for inserting at the front when there's room
- nReadPos -= (last - first);
+ nReadPos -= (unsigned int)(last - first);
memcpy(&vch[nReadPos], &first[0], last - first);
}
else
}
else
{
- nReadPos = (last - vch.begin());
+ nReadPos = (unsigned int)(last - vch.begin());
return last;
}
}
// Rewind by n characters if the buffer hasn't been compacted yet
if (n > nReadPos)
return false;
- nReadPos -= n;
+ nReadPos -= (unsigned int)n;
return true;
}
{
state |= bits;
if (state & exceptmask)
- THROW_WITH_STACKTRACE(std::ios_base::failure(psz));
+ throw std::ios_base::failure(psz);
}
bool eof() const { return size() == 0; }
- bool fail() const { return state & (std::ios::badbit | std::ios::failbit); }
+ bool fail() const { return (state & (std::ios::badbit | std::ios::failbit)) != 0; }
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(); }
+ int in_avail() { return (int)(size()); }
void SetType(int n) { nType = n; }
int GetType() { return nType; }
{
setstate(std::ios::failbit, "CDataStream::read() : end of data");
memset(pch, 0, nSize);
- nSize = vch.size() - nReadPos;
+ nSize = (int)(vch.size() - nReadPos);
}
memcpy(pch, &vch[nReadPos], nSize);
nReadPos = 0;
if (nReadPosNext >= vch.size())
{
if (nReadPosNext > vch.size())
- {
setstate(std::ios::failbit, "CDataStream::ignore() : end of data");
- nSize = vch.size() - nReadPos;
- }
nReadPos = 0;
vch.clear();
return (*this);
::Unserialize(*this, obj, nType, nVersion);
return (*this);
}
+
+ void GetAndClear(CSerializeData &data) {
+ vch.swap(data);
+ CSerializeData().swap(vch);
+ }
};
{
state |= bits;
if (state & exceptmask)
- THROW_WITH_STACKTRACE(std::ios_base::failure(psz));
+ throw std::ios_base::failure(psz);
}
- bool fail() const { return state & (std::ios::badbit | std::ios::failbit); }
+ bool fail() const { return (state & (std::ios::badbit | std::ios::failbit)) != 0; }
bool good() const { return state == 0; }
void clear(short n = 0) { state = n; }
short exceptions() { return exceptmask; }
}
};
+/** Wrapper around a FILE* that implements a ring buffer to
+ * deserialize from. It guarantees the ability to rewind
+ * a given number of bytes. */
+class CBufferedFile
+{
+private:
+ FILE *src; // source file
+ uint64_t nSrcPos; // how many bytes have been read from source
+ uint64_t nReadPos; // how many bytes have been read from this
+ uint64_t nReadLimit; // up to which position we're allowed to read
+ uint64_t nRewind; // how many bytes we guarantee to rewind
+ std::vector<char> vchBuf; // the buffer
+
+ short state;
+ short exceptmask;
+
+protected:
+ void setstate(short bits, const char *psz) {
+ state |= bits;
+ if (state & exceptmask)
+ throw std::ios_base::failure(psz);
+ }
+
+ // read data from the source to fill the buffer
+ bool Fill() {
+ unsigned int pos = (unsigned int)(nSrcPos % vchBuf.size());
+ unsigned int readNow = (unsigned int)(vchBuf.size() - pos);
+ unsigned int nAvail = (unsigned int)(vchBuf.size() - (nSrcPos - nReadPos) - nRewind);
+ if (nAvail < readNow)
+ readNow = nAvail;
+ if (readNow == 0)
+ return false;
+ size_t read = fread((void*)&vchBuf[pos], 1, readNow, src);
+ if (read == 0) {
+ setstate(std::ios_base::failbit, feof(src) ? "CBufferedFile::Fill : end of file" : "CBufferedFile::Fill : fread failed");
+ return false;
+ } else {
+ nSrcPos += read;
+ return true;
+ }
+ }
+
+public:
+ int nType;
+ int nVersion;
+
+ CBufferedFile(FILE *fileIn, uint64_t nBufSize, uint64_t nRewindIn, int nTypeIn, int nVersionIn) :
+ src(fileIn), nSrcPos(0), nReadPos(0), nReadLimit(std::numeric_limits<uint64_t>::max()), nRewind(nRewindIn), vchBuf(nBufSize, 0),
+ state(0), exceptmask(std::ios_base::badbit | std::ios_base::failbit), nType(nTypeIn), nVersion(nVersionIn) {
+ }
+
+ // check whether no error occurred
+ bool good() const {
+ return state == 0;
+ }
+
+ // check whether we're at the end of the source file
+ bool eof() const {
+ return nReadPos == nSrcPos && feof(src);
+ }
+
+ // read a number of bytes
+ CBufferedFile& read(char *pch, size_t nSize) {
+ if (nSize + nReadPos > nReadLimit)
+ throw std::ios_base::failure("Read attempted past buffer limit");
+ if (nSize + nRewind > vchBuf.size())
+ throw std::ios_base::failure("Read larger than buffer size");
+ while (nSize > 0) {
+ if (nReadPos == nSrcPos)
+ Fill();
+ unsigned int pos = (unsigned int)(nReadPos % vchBuf.size());
+ size_t nNow = nSize;
+ if (nNow + pos > vchBuf.size())
+ nNow = vchBuf.size() - pos;
+ if (nNow + nReadPos > nSrcPos)
+ nNow = (size_t)(nSrcPos - nReadPos);
+ memcpy(pch, &vchBuf[pos], nNow);
+ nReadPos += nNow;
+ pch += nNow;
+ nSize -= nNow;
+ }
+ return (*this);
+ }
+
+ // return the current reading position
+ uint64_t GetPos() {
+ return nReadPos;
+ }
+
+ // rewind to a given reading position
+ bool SetPos(uint64_t nPos) {
+ nReadPos = nPos;
+ if (nReadPos + nRewind < nSrcPos) {
+ nReadPos = nSrcPos - nRewind;
+ return false;
+ } else if (nReadPos > nSrcPos) {
+ nReadPos = nSrcPos;
+ return false;
+ } else {
+ return true;
+ }
+ }
+
+ bool Seek(uint64_t nPos) {
+ long nLongPos = (long)nPos;
+ if (nPos != (uint64_t)nLongPos)
+ return false;
+ if (fseek(src, nLongPos, SEEK_SET))
+ return false;
+ nLongPos = ftell(src);
+ nSrcPos = nLongPos;
+ nReadPos = nLongPos;
+ state = 0;
+ return true;
+ }
+
+ // prevent reading beyond a certain position
+ // no argument removes the limit
+ bool SetLimit(uint64_t nPos = std::numeric_limits<uint64_t>::max()) {
+ if (nPos < nReadPos)
+ return false;
+ nReadLimit = nPos;
+ return true;
+ }
+
+ template<typename T>
+ CBufferedFile& operator>>(T& obj) {
+ // Unserialize from this stream
+ ::Unserialize(*this, obj, nType, nVersion);
+ return (*this);
+ }
+
+ // search for a given byte in the stream, and remain positioned on it
+ void FindByte(char ch) {
+ for ( ; ; ) {
+ if (nReadPos == nSrcPos)
+ Fill();
+ if (vchBuf[nReadPos % vchBuf.size()] == ch)
+ break;
+ nReadPos++;
+ }
+ }
+};
+
#endif
git://git.novaco.in / novacoin.git / blobdiff