// Copyright (c) 2009-2010 Satoshi Nakamoto
+// Copyright (c) 2009-2012 The Bitcoin developers
// Distributed under the MIT/X11 software license, see the accompanying
// file license.txt or http://www.opensource.org/licenses/mit-license.php.
+#ifndef BITCOIN_SERIALIZE_H
+#define BITCOIN_SERIALIZE_H
#include <string>
#include <vector>
#include <map>
#include <set>
+#include <cassert>
+#include <climits>
+#include <cstring>
+#include <cstdio>
+
#include <boost/type_traits/is_fundamental.hpp>
#include <boost/tuple/tuple.hpp>
#include <boost/tuple/tuple_comparison.hpp>
#include <boost/tuple/tuple_io.hpp>
+
#if defined(_MSC_VER) || defined(__BORLANDC__)
typedef __int64 int64;
typedef unsigned __int64 uint64;
#if defined(_MSC_VER) && _MSC_VER < 1300
#define for if (false) ; else for
#endif
+
+#ifdef __WXMSW__
+// This is used to attempt to keep keying material out of swap
+// Note that VirtualLock does not provide this as a guarantee on Windows,
+// but, in practice, memory that has been VirtualLock'd almost never gets written to
+// the pagefile except in rare circumstances where memory is extremely low.
+#include <windows.h>
+#define mlock(p, n) VirtualLock((p), (n));
+#define munlock(p, n) VirtualUnlock((p), (n));
+#else
+#include <sys/mman.h>
+#include <limits.h>
+/* This comes from limits.h if it's not defined there set a sane default */
+#ifndef PAGESIZE
+#include <unistd.h>
+#define PAGESIZE sysconf(_SC_PAGESIZE)
+#endif
+#define mlock(a,b) \
+ mlock(((void *)(((size_t)(a)) & (~((PAGESIZE)-1)))),\
+ (((((size_t)(a)) + (b) - 1) | ((PAGESIZE) - 1)) + 1) - (((size_t)(a)) & (~((PAGESIZE) - 1))))
+#define munlock(a,b) \
+ munlock(((void *)(((size_t)(a)) & (~((PAGESIZE)-1)))),\
+ (((((size_t)(a)) + (b) - 1) | ((PAGESIZE) - 1)) + 1) - (((size_t)(a)) & (~((PAGESIZE) - 1))))
+#endif
+
class CScript;
class CDataStream;
class CAutoFile;
static const unsigned int MAX_SIZE = 0x02000000;
-static const int VERSION = 32100;
+static const int VERSION = 40700;
static const char* pszSubVer = "";
static const bool VERSION_IS_BETA = true;
-
-
-
-
+// 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);
+}
/////////////////////////////////////////////////////////////////
//
const bool fRead = false; \
unsigned int nSerSize = 0; \
ser_streamplaceholder s; \
+ assert(fGetSize||fWrite||fRead); /* suppress warning */ \
s.nType = nType; \
s.nVersion = nVersion; \
{statements} \
const bool fWrite = true; \
const bool fRead = false; \
unsigned int nSerSize = 0; \
+ assert(fGetSize||fWrite||fRead); /* suppress warning */ \
{statements} \
} \
template<typename Stream> \
const bool fWrite = false; \
const bool fRead = true; \
unsigned int nSerSize = 0; \
+ assert(fGetSize||fWrite||fRead); /* suppress warning */ \
{statements} \
}
class CFixedFieldString
{
protected:
- const string* pcstr;
- string* pstr;
+ const std::string* pcstr;
+ std::string* pstr;
public:
- explicit CFixedFieldString(const string& str) : pcstr(&str), pstr(NULL) { }
- explicit CFixedFieldString(string& str) : pcstr(&str), pstr(&str) { }
+ explicit CFixedFieldString(const std::string& str) : pcstr(&str), pstr(NULL) { }
+ explicit CFixedFieldString(std::string& str) : pcstr(&str), pstr(&str) { }
unsigned int GetSerializeSize(int, int=0) const
{
//
// string
-template<typename C> unsigned int GetSerializeSize(const basic_string<C>& str, int, int=0);
-template<typename Stream, typename C> void Serialize(Stream& os, const basic_string<C>& str, int, int=0);
-template<typename Stream, typename C> void Unserialize(Stream& is, basic_string<C>& str, int, int=0);
+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
template<typename T, typename A> unsigned int GetSerializeSize_impl(const std::vector<T, A>& v, int nType, int nVersion, const boost::true_type&);
// string
//
template<typename C>
-unsigned int GetSerializeSize(const basic_string<C>& str, int, int)
+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 basic_string<C>& str, int, int)
+void Serialize(Stream& os, const std::basic_string<C>& str, int, int)
{
WriteCompactSize(os, str.size());
if (!str.empty())
}
template<typename Stream, typename C>
-void Unserialize(Stream& is, basic_string<C>& str, int, int)
+void Unserialize(Stream& is, std::basic_string<C>& str, int, int)
{
unsigned int nSize = ReadCompactSize(is);
str.resize(nSize);
unsigned int i = 0;
while (i < nSize)
{
- unsigned int blk = min(nSize - i, (unsigned int)(1 + 4999999 / sizeof(T)));
+ 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;
//
inline unsigned int GetSerializeSize(const CScript& v, int nType, int nVersion)
{
- return GetSerializeSize((const vector<unsigned char>&)v, nType, 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 vector<unsigned char>&)v, nType, 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, (vector<unsigned char>&)v, nType, nVersion);
+ Unserialize(is, (std::vector<unsigned char>&)v, nType, nVersion);
}
unsigned int GetSerializeSize(const boost::tuple<T0, T1, T2>& item, int nType, int nVersion)
{
unsigned int nSize = 0;
- nSize += GetSerializeSize(get<0>(item), nType, nVersion);
- nSize += GetSerializeSize(get<1>(item), nType, nVersion);
- nSize += GetSerializeSize(get<2>(item), nType, nVersion);
+ nSize += GetSerializeSize(boost::get<0>(item), nType, nVersion);
+ nSize += GetSerializeSize(boost::get<1>(item), nType, nVersion);
+ nSize += GetSerializeSize(boost::get<2>(item), nType, nVersion);
return nSize;
}
template<typename Stream, typename T0, typename T1, typename T2>
void Serialize(Stream& os, const boost::tuple<T0, T1, T2>& item, int nType, int nVersion)
{
- Serialize(os, get<0>(item), nType, nVersion);
- Serialize(os, get<1>(item), nType, nVersion);
- Serialize(os, get<2>(item), nType, nVersion);
+ Serialize(os, boost::get<0>(item), nType, nVersion);
+ Serialize(os, boost::get<1>(item), nType, nVersion);
+ Serialize(os, boost::get<2>(item), nType, nVersion);
}
template<typename Stream, typename T0, typename T1, typename T2>
void Unserialize(Stream& is, boost::tuple<T0, T1, T2>& item, int nType, int nVersion)
{
- Unserialize(is, get<0>(item), nType, nVersion);
- Unserialize(is, get<1>(item), nType, nVersion);
- Unserialize(is, get<2>(item), nType, nVersion);
+ Unserialize(is, boost::get<0>(item), nType, nVersion);
+ Unserialize(is, boost::get<1>(item), nType, nVersion);
+ Unserialize(is, boost::get<2>(item), nType, nVersion);
}
unsigned int GetSerializeSize(const boost::tuple<T0, T1, T2, T3>& item, int nType, int nVersion)
{
unsigned int nSize = 0;
- nSize += GetSerializeSize(get<0>(item), nType, nVersion);
- nSize += GetSerializeSize(get<1>(item), nType, nVersion);
- nSize += GetSerializeSize(get<2>(item), nType, nVersion);
- nSize += GetSerializeSize(get<3>(item), nType, nVersion);
+ nSize += GetSerializeSize(boost::get<0>(item), nType, nVersion);
+ nSize += GetSerializeSize(boost::get<1>(item), nType, nVersion);
+ nSize += GetSerializeSize(boost::get<2>(item), nType, nVersion);
+ nSize += GetSerializeSize(boost::get<3>(item), nType, nVersion);
return nSize;
}
template<typename Stream, typename T0, typename T1, typename T2, typename T3>
void Serialize(Stream& os, const boost::tuple<T0, T1, T2, T3>& item, int nType, int nVersion)
{
- Serialize(os, get<0>(item), nType, nVersion);
- Serialize(os, get<1>(item), nType, nVersion);
- Serialize(os, get<2>(item), nType, nVersion);
- Serialize(os, get<3>(item), nType, nVersion);
+ Serialize(os, boost::get<0>(item), nType, nVersion);
+ Serialize(os, boost::get<1>(item), nType, nVersion);
+ Serialize(os, boost::get<2>(item), nType, nVersion);
+ Serialize(os, boost::get<3>(item), nType, nVersion);
}
template<typename Stream, typename T0, typename T1, typename T2, typename T3>
void Unserialize(Stream& is, boost::tuple<T0, T1, T2, T3>& item, int nType, int nVersion)
{
- Unserialize(is, get<0>(item), nType, nVersion);
- Unserialize(is, get<1>(item), nType, nVersion);
- Unserialize(is, get<2>(item), nType, nVersion);
- Unserialize(is, get<3>(item), nType, nVersion);
+ Unserialize(is, boost::get<0>(item), nType, nVersion);
+ Unserialize(is, boost::get<1>(item), nType, nVersion);
+ Unserialize(is, boost::get<2>(item), nType, nVersion);
+ Unserialize(is, boost::get<3>(item), nType, nVersion);
}
typename std::map<K, T, Pred, A>::iterator mi = m.begin();
for (unsigned int i = 0; i < nSize; i++)
{
- pair<K, T> item;
+ std::pair<K, T> item;
Unserialize(is, item, nType, nVersion);
mi = m.insert(mi, item);
}
//
-// Allocator that clears its contents before deletion
+// Allocator that locks its contents from being paged
+// out of memory and clears its contents before deletion.
//
template<typename T>
struct secure_allocator : public std::allocator<T>
template<typename _Other> struct rebind
{ typedef secure_allocator<_Other> other; };
+ T* allocate(std::size_t n, const void *hint = 0)
+ {
+ T *p;
+ p = std::allocator<T>::allocate(n, hint);
+ if (p != NULL)
+ mlock(p, sizeof(T) * n);
+ return p;
+ }
+
void deallocate(T* p, std::size_t n)
{
if (p != NULL)
+ {
memset(p, 0, sizeof(T) * n);
- allocator<T>::deallocate(p, n);
+ munlock(p, sizeof(T) * n);
+ }
+ std::allocator<T>::deallocate(p, n);
+ }
+};
+
+
+//
+// Allocator that clears its contents before deletion.
+//
+template<typename T>
+struct zero_after_free_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;
+ zero_after_free_allocator() throw() {}
+ zero_after_free_allocator(const zero_after_free_allocator& a) throw() : base(a) {}
+ template <typename U>
+ zero_after_free_allocator(const zero_after_free_allocator<U>& a) throw() : base(a) {}
+ ~zero_after_free_allocator() throw() {}
+ template<typename _Other> struct rebind
+ { typedef zero_after_free_allocator<_Other> other; };
+
+ void deallocate(T* p, std::size_t n)
+ {
+ if (p != NULL)
+ memset(p, 0, sizeof(T) * n);
+ std::allocator<T>::deallocate(p, n);
}
};
class CDataStream
{
protected:
- typedef vector<char, secure_allocator<char> > vector_type;
+ typedef std::vector<char, zero_after_free_allocator<char> > vector_type;
vector_type vch;
unsigned int nReadPos;
short state;
Init(nTypeIn, nVersionIn);
}
- CDataStream(const vector<char>& vchIn, int nTypeIn=SER_NETWORK, int nVersionIn=VERSION) : vch(vchIn.begin(), vchIn.end())
+ CDataStream(const std::vector<char>& vchIn, int nTypeIn=SER_NETWORK, int nVersionIn=VERSION) : vch(vchIn.begin(), vchIn.end())
{
Init(nTypeIn, nVersionIn);
}
- CDataStream(const vector<unsigned char>& vchIn, int nTypeIn=SER_NETWORK, int nVersionIn=VERSION) : vch((char*)&vchIn.begin()[0], (char*)&vchIn.end()[0])
+ CDataStream(const std::vector<unsigned char>& vchIn, int nTypeIn=SER_NETWORK, int nVersionIn=VERSION) : vch((char*)&vchIn.begin()[0], (char*)&vchIn.end()[0])
{
Init(nTypeIn, nVersionIn);
}
nType = nTypeIn;
nVersion = nVersionIn;
state = 0;
- exceptmask = ios::badbit | ios::failbit;
+ exceptmask = std::ios::badbit | std::ios::failbit;
}
CDataStream& operator+=(const CDataStream& b)
return (ret);
}
- string str() const
+ std::string str() const
{
- return (string(begin(), end()));
+ return (std::string(begin(), end()));
}
vch.insert(it, first, last);
}
- void insert(iterator it, vector<char>::const_iterator first, vector<char>::const_iterator last)
+ void insert(iterator it, std::vector<char>::const_iterator first, std::vector<char>::const_iterator last)
{
if (it == vch.begin() + nReadPos && last - first <= nReadPos)
{
}
bool eof() const { return size() == 0; }
- bool fail() const { return state & (ios::badbit | ios::failbit); }
+ bool fail() const { return state & (std::ios::badbit | std::ios::failbit); }
bool good() const { return !eof() && (state == 0); }
void clear(short n) { state = n; } // name conflict with vector clear()
short exceptions() { return exceptmask; }
{
if (nReadPosNext > vch.size())
{
- setstate(ios::failbit, "CDataStream::read() : end of data");
+ setstate(std::ios::failbit, "CDataStream::read() : end of data");
memset(pch, 0, nSize);
nSize = vch.size() - nReadPos;
}
{
if (nReadPosNext > vch.size())
{
- setstate(ios::failbit, "CDataStream::ignore() : end of data");
+ setstate(std::ios::failbit, "CDataStream::ignore() : end of data");
nSize = vch.size() - nReadPos;
}
nReadPos = 0;
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;
+ exceptmask = std::ios::badbit | std::ios::failbit;
}
~CAutoFile()
throw std::ios_base::failure(psz);
}
- bool fail() const { return state & (ios::badbit | ios::failbit); }
+ bool fail() const { return state & (std::ios::badbit | std::ios::failbit); }
bool good() const { return state == 0; }
void clear(short n = 0) { state = n; }
short exceptions() { return exceptmask; }
if (!file)
throw std::ios_base::failure("CAutoFile::read : file handle is NULL");
if (fread(pch, 1, nSize, file) != nSize)
- setstate(ios::failbit, feof(file) ? "CAutoFile::read : end of file" : "CAutoFile::read : fread failed");
+ setstate(std::ios::failbit, feof(file) ? "CAutoFile::read : end of file" : "CAutoFile::read : fread failed");
return (*this);
}
if (!file)
throw std::ios_base::failure("CAutoFile::write : file handle is NULL");
if (fwrite(pch, 1, nSize, file) != nSize)
- setstate(ios::failbit, "CAutoFile::write : write failed");
+ setstate(std::ios::failbit, "CAutoFile::write : write failed");
return (*this);
}
return (*this);
}
};
+
+#endif
git://git.novaco.in / novacoin.git / blobdiff