${CMAKE_CURRENT_SOURCE_DIR}/src/ntp.cpp
${CMAKE_CURRENT_SOURCE_DIR}/src/key.cpp
${CMAKE_CURRENT_SOURCE_DIR}/src/script.cpp
+ ${CMAKE_CURRENT_SOURCE_DIR}/src/streams.cpp
${CMAKE_CURRENT_SOURCE_DIR}/src/main.cpp
${CMAKE_CURRENT_SOURCE_DIR}/src/miner.cpp
${CMAKE_CURRENT_SOURCE_DIR}/src/init.cpp
${CMAKE_CURRENT_SOURCE_DIR}/rpcrawtransaction.cpp
${CMAKE_CURRENT_SOURCE_DIR}/rpcwallet.cpp
${CMAKE_CURRENT_SOURCE_DIR}/script.cpp
+ ${CMAKE_CURRENT_SOURCE_DIR}/streams.cpp
${CMAKE_CURRENT_SOURCE_DIR}/stun.cpp
${CMAKE_CURRENT_SOURCE_DIR}/sync.cpp
${CMAKE_CURRENT_SOURCE_DIR}/timedata.cpp
#include "addrman.h"
#include "hash.h"
+#include "streams.h"
using namespace std;
#include <mutex>
#include <cassert>
#include <map>
+#include <vector>
#ifdef WIN32
#ifdef _WIN32_WINNT
// This is exactly like std::string, but with a custom allocator.
typedef std::basic_string<char, std::char_traits<char>, secure_allocator<char> > SecureString;
+// Byte-vector that clears its contents before deletion.
+typedef std::vector<char, zero_after_free_allocator<char> > CSerializeData;
+
#endif
#include "sync.h"
#include "serialize.h"
#include "script.h"
+#include "streams.h"
#include <boost/filesystem/path.hpp>
#include "key.h"
#include "base58.h"
+#include "streams.h"
// Generate a private key from just the secret parameter
int EC_KEY_regenerate_key(EC_KEY *eckey, BIGNUM *priv_key)
#include "netbase.h"
#include "addrman.h"
#include "hash.h"
+#include "streams.h"
#include <openssl/rand.h>
#ifndef BITCOIN_SERIALIZE_H
#define BITCOIN_SERIALIZE_H
-#include "allocators.h"
#include "version.h"
+#include <cassert>
#include <vector>
#include <set>
#include <tuple>
#include <cstdio>
#include <ios>
#include <cinttypes>
+#include <map>
#if defined __USE_MINGW_ANSI_STDIO
#undef __USE_MINGW_ANSI_STDIO // This constant forces MinGW to conduct stupid behavior
class CScript;
-class CDataStream;
-class CAutoFile;
+
static const unsigned int MAX_SIZE = 0x02000000;
// Used to bypass the rule against non-const reference to temporary
int nVersion;
};
-
-
-
-
-
-
-
-
-
-
-typedef std::vector<char, zero_after_free_allocator<char> > CSerializeData;
-
-/** 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 CSerializeData 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, int nVersionIn)
- {
- Init(nTypeIn, nVersionIn);
- }
-
- CDataStream(const_iterator pbegin, const_iterator pend, int nTypeIn, int nVersionIn) : vch(pbegin, pend)
- {
- Init(nTypeIn, nVersionIn);
- }
-
-#if !defined(_MSC_VER) || _MSC_VER >= 1300
- CDataStream(const char* pbegin, const char* pend, int nTypeIn, int nVersionIn) : vch(pbegin, pend)
- {
- Init(nTypeIn, nVersionIn);
- }
-#endif
-
- CDataStream(const vector_type& vchIn, int nTypeIn, int nVersionIn) : vch(vchIn.begin(), vchIn.end())
- {
- Init(nTypeIn, nVersionIn);
- }
-
- CDataStream(const std::vector<char>& vchIn, int nTypeIn, int nVersionIn) : vch(vchIn.begin(), vchIn.end())
- {
- Init(nTypeIn, nVersionIn);
- }
-
- CDataStream(const std::vector<unsigned char>& vchIn, int nTypeIn, int nVersionIn) : vch(vchIn.begin(), vchIn.end())
- {
- Init(nTypeIn, nVersionIn);
- }
-
- void Init(int nTypeIn, int nVersionIn)
- {
- nReadPos = 0;
- nType = nTypeIn;
- nVersion = nVersionIn;
- state = 0;
- exceptmask = std::ios::badbit | std::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);
- }
-
- std::string str() const
- {
- return (std::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); }
-
-#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 -= (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)
- {
- 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 -= (unsigned int)(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 = (unsigned int)(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 -= (unsigned int)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 & (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 (int)(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(std::ios::failbit, "CDataStream::read() : end of data");
- memset(pch, 0, nSize);
- nSize = (int)(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(std::ios::failbit, "CDataStream::ignore() : end of data");
- 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, int nVersion) 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);
- }
-
- void GetAndClear(CSerializeData &data) {
- vch.swap(data);
- CSerializeData().swap(vch);
- }
-};
-
-
-
-
-
-
-
-
-
-
-/** RAII 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;
-
- CAutoFile(FILE* filenew, int nTypeIn, int nVersionIn)
- {
- file = filenew;
- nType = nTypeIn;
- nVersion = nVersionIn;
- state = 0;
- exceptmask = std::ios::badbit | std::ios::failbit;
- }
-
- ~CAutoFile()
- {
- fclose();
- }
-
- void fclose()
- {
- if (file != NULL && file != stdin && file != stdout && file != stderr)
- ::fclose(file);
- file = NULL;
- }
-
- FILE* release() { FILE* ret = file; file = NULL; return ret; }
- operator FILE*() { return file; }
- FILE* operator->() { return file; }
- FILE& operator*() { return *file; }
- FILE** operator&() { return &file; }
- FILE* operator=(FILE* pnew) { return file = pnew; }
- bool operator!() { return (file == NULL); }
-
-
- //
- // Stream subset
- //
- void setstate(short bits, const char* psz)
- {
- state |= bits;
- if (state & exceptmask)
- throw std::ios_base::failure(psz);
- }
-
- bool fail() const { return (state & (std::ios::badbit | std::ios::failbit)) != 0; }
- bool good() const { return state == 0; }
- void clear(short n = 0) { state = n; }
- short exceptions() { return exceptmask; }
- short exceptions(short mask) { short prev = exceptmask; exceptmask = mask; setstate(0, "CAutoFile"); return prev; }
-
- void SetType(int n) { nType = n; }
- int GetType() { return nType; }
- void SetVersion(int n) { nVersion = n; }
- int GetVersion() { return nVersion; }
- void ReadVersion() { *this >> nVersion; }
- void WriteVersion() { *this << nVersion; }
-
- CAutoFile& read(char* pch, size_t nSize)
- {
- if (!file)
- throw std::ios_base::failure("CAutoFile::read : file handle is NULL");
- if (fread(pch, 1, nSize, file) != nSize)
- setstate(std::ios::failbit, feof(file) ? "CAutoFile::read : end of file" : "CAutoFile::read : fread failed");
- return (*this);
- }
-
- CAutoFile& write(const char* pch, size_t nSize)
- {
- if (!file)
- throw std::ios_base::failure("CAutoFile::write : file handle is NULL");
- if (fwrite(pch, 1, nSize, file) != nSize)
- setstate(std::ios::failbit, "CAutoFile::write : write failed");
- return (*this);
- }
-
- template<typename T>
- unsigned int GetSerializeSize(const T& obj)
- {
- // Tells the size of the object if serialized to this stream
- return ::GetSerializeSize(obj, nType, nVersion);
- }
-
- template<typename T>
- CAutoFile& operator<<(const T& obj)
- {
- // Serialize to this stream
- if (!file)
- throw std::ios_base::failure("CAutoFile::operator<< : file handle is NULL");
- ::Serialize(*this, obj, nType, nVersion);
- return (*this);
- }
-
- template<typename T>
- CAutoFile& operator>>(T& obj)
- {
- // Unserialize from this stream
- if (!file)
- throw std::ios_base::failure("CAutoFile::operator>> : file handle is NULL");
- ::Unserialize(*this, obj, nType, nVersion);
- return (*this);
- }
-};
-
-/** 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
--- /dev/null
+#include "streams.h"
+
+CDataStream::CDataStream(int nTypeIn, int nVersionIn)
+{
+ Init(nTypeIn, nVersionIn);
+}
+
+CDataStream::CDataStream(const_iterator pbegin, const_iterator pend, int nTypeIn, int nVersionIn) : vch(pbegin, pend)
+{
+ Init(nTypeIn, nVersionIn);
+}
+
+CDataStream::CDataStream(const char *pbegin, const char *pend, int nTypeIn, int nVersionIn) : vch(pbegin, pend)
+{
+ Init(nTypeIn, nVersionIn);
+}
+
+CDataStream::CDataStream(const vector_type &vchIn, int nTypeIn, int nVersionIn) : vch(vchIn.begin(), vchIn.end())
+{
+ Init(nTypeIn, nVersionIn);
+}
+
+CDataStream::CDataStream(const std::vector<char> &vchIn, int nTypeIn, int nVersionIn) : vch(vchIn.begin(), vchIn.end())
+{
+ Init(nTypeIn, nVersionIn);
+}
+
+CDataStream::CDataStream(const std::vector<unsigned char> &vchIn, int nTypeIn, int nVersionIn) : vch(vchIn.begin(), vchIn.end())
+{
+ Init(nTypeIn, nVersionIn);
+}
+
+void CDataStream::Init(int nTypeIn, int nVersionIn)
+{
+ nReadPos = 0;
+ nType = nTypeIn;
+ nVersion = nVersionIn;
+ state = 0;
+ exceptmask = std::ios::badbit | std::ios::failbit;
+}
+
+CDataStream &CDataStream::operator+=(const CDataStream &b)
+{
+ vch.insert(vch.end(), b.begin(), b.end());
+ return *this;
+}
+
+std::string CDataStream::str() const
+{
+ return std::string(begin(), end());
+}
+
+bool CDataStream::Rewind(size_type n)
+{
+ // Rewind by n characters if the buffer hasn't been compacted yet
+ if (n > nReadPos)
+ return false;
+ nReadPos -= (unsigned int)n;
+ return true;
+}
+
+void CDataStream::setstate(short bits, const char *psz)
+{
+ state |= bits;
+ if (state & exceptmask)
+ throw std::ios_base::failure(psz);
+}
+
+CDataStream &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(std::ios::failbit, "CDataStream::read() : end of data");
+ memset(pch, 0, nSize);
+ nSize = (int)(vch.size() - nReadPos);
+ }
+ memcpy(pch, &vch[nReadPos], nSize);
+ nReadPos = 0;
+ vch.clear();
+ return (*this);
+ }
+ memcpy(pch, &vch[nReadPos], nSize);
+ nReadPos = nReadPosNext;
+ return (*this);
+}
+
+CDataStream &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(std::ios::failbit, "CDataStream::ignore() : end of data");
+ nReadPos = 0;
+ vch.clear();
+ return (*this);
+ }
+ nReadPos = nReadPosNext;
+ return (*this);
+}
+
+CDataStream &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);
+}
+
+void CDataStream::GetAndClear(CSerializeData &data) {
+ vch.swap(data);
+ CSerializeData().swap(vch);
+}
+
+CAutoFile::CAutoFile(FILE *filenew, int nTypeIn, int nVersionIn)
+{
+ file = filenew;
+ nType = nTypeIn;
+ nVersion = nVersionIn;
+ state = 0;
+ exceptmask = std::ios::badbit | std::ios::failbit;
+}
+
+CAutoFile::~CAutoFile()
+{
+ fclose();
+}
+
+void CAutoFile::fclose()
+{
+ if (file != NULL && file != stdin && file != stdout && file != stderr)
+ ::fclose(file);
+ file = NULL;
+}
+
+void CAutoFile::setstate(short bits, const char *psz)
+{
+ state |= bits;
+ if (state & exceptmask)
+ throw std::ios_base::failure(psz);
+}
+
+CAutoFile &CAutoFile::read(char *pch, size_t nSize)
+{
+ if (!file)
+ throw std::ios_base::failure("CAutoFile::read : file handle is NULL");
+ if (fread(pch, 1, nSize, file) != nSize)
+ setstate(std::ios::failbit, feof(file) ? "CAutoFile::read : end of file" : "CAutoFile::read : fread failed");
+ return (*this);
+}
+
+CAutoFile &CAutoFile::write(const char *pch, size_t nSize)
+{
+ if (!file)
+ throw std::ios_base::failure("CAutoFile::write : file handle is NULL");
+ if (fwrite(pch, 1, nSize, file) != nSize)
+ setstate(std::ios::failbit, "CAutoFile::write : write failed");
+ return (*this);
+}
+
+void CBufferedFile::setstate(short bits, const char *psz) {
+ state |= bits;
+ if (state & exceptmask)
+ throw std::ios_base::failure(psz);
+}
+
+bool CBufferedFile::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;
+ }
+}
+
+CBufferedFile &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);
+}
+
+bool CBufferedFile::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 CBufferedFile::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;
+}
+
+bool CBufferedFile::SetLimit(uint64_t nPos) {
+ if (nPos < nReadPos)
+ return false;
+ nReadLimit = nPos;
+ return true;
+}
+
+void CBufferedFile::FindByte(char ch) {
+ for ( ; ; ) {
+ if (nReadPos == nSrcPos)
+ Fill();
+ if (vchBuf[nReadPos % vchBuf.size()] == ch)
+ break;
+ nReadPos++;
+ }
+}
--- /dev/null
+// Copyright (c) 2009-2010 Satoshi Nakamoto
+// Copyright (c) 2009-2013 The Bitcoin developers
+// Distributed under the MIT/X11 software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#ifndef BITCOIN_STREAMS_H
+#define BITCOIN_STREAMS_H
+
+#include "allocators.h"
+#include "serialize.h"
+
+#include <algorithm>
+#include <ios>
+#include <utility>
+
+/** 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 CSerializeData 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, int nVersionIn);
+
+ CDataStream(const_iterator pbegin, const_iterator pend, int nTypeIn, int nVersionIn);
+ CDataStream(const char* pbegin, const char* pend, int nTypeIn, int nVersionIn);
+ CDataStream(const vector_type& vchIn, int nTypeIn, int nVersionIn);
+ CDataStream(const std::vector<char>& vchIn, int nTypeIn, int nVersionIn);
+ CDataStream(const std::vector<unsigned char>& vchIn, int nTypeIn, int nVersionIn);
+
+ void Init(int nTypeIn, int nVersionIn);
+
+ CDataStream& operator+=(const CDataStream& b);
+
+ friend CDataStream operator+(const CDataStream& a, const CDataStream& b)
+ {
+ CDataStream ret = a;
+ ret += b;
+ return (ret);
+ }
+
+ std::string str() const;
+
+ //
+ // 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, 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);
+ }
+
+ void insert(iterator it, const char* first, const char* 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 -= (unsigned int)(last - first);
+ memcpy(&vch[nReadPos], &first[0], last - first);
+ }
+ else
+ vch.insert(it, first, last);
+ }
+
+ 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 = (unsigned int)(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);
+
+ //
+ // Stream subset
+ //
+ void setstate(short bits, const char* psz);
+
+ bool eof() const { return size() == 0; }
+ 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 (int)(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);
+ CDataStream& ignore(int nSize);
+ CDataStream& write(const char* pch, int nSize);
+
+ template<typename Stream>
+ void Serialize(Stream& s, int nType, int nVersion) 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);
+ }
+
+ void GetAndClear(CSerializeData &data);
+};
+
+
+/** RAII 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;
+
+ CAutoFile(FILE* filenew, int nTypeIn, int nVersionIn);
+ ~CAutoFile();
+ void fclose();
+
+ FILE* release() { FILE* ret = file; file = NULL; return ret; }
+ operator FILE*() { return file; }
+ FILE* operator->() { return file; }
+ FILE& operator*() { return *file; }
+ FILE** operator&() { return &file; }
+ FILE* operator=(FILE* pnew) { return file = pnew; }
+ bool operator!() { return (file == NULL); }
+
+
+ //
+ // Stream subset
+ //
+ void setstate(short bits, const char* psz);
+ 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; }
+ short exceptions(short mask) { short prev = exceptmask; exceptmask = mask; setstate(0, "CAutoFile"); return prev; }
+
+ void SetType(int n) { nType = n; }
+ int GetType() { return nType; }
+ void SetVersion(int n) { nVersion = n; }
+ int GetVersion() { return nVersion; }
+ void ReadVersion() { *this >> nVersion; }
+ void WriteVersion() { *this << nVersion; }
+
+ CAutoFile& read(char* pch, size_t nSize);
+ CAutoFile& write(const char* pch, size_t nSize);
+
+ template<typename T>
+ unsigned int GetSerializeSize(const T& obj)
+ {
+ // Tells the size of the object if serialized to this stream
+ return ::GetSerializeSize(obj, nType, nVersion);
+ }
+
+ template<typename T>
+ CAutoFile& operator<<(const T& obj)
+ {
+ // Serialize to this stream
+ if (!file)
+ throw std::ios_base::failure("CAutoFile::operator<< : file handle is NULL");
+ ::Serialize(*this, obj, nType, nVersion);
+ return (*this);
+ }
+
+ template<typename T>
+ CAutoFile& operator>>(T& obj)
+ {
+ // Unserialize from this stream
+ if (!file)
+ throw std::ios_base::failure("CAutoFile::operator>> : file handle is NULL");
+ ::Unserialize(*this, obj, nType, nVersion);
+ return (*this);
+ }
+};
+
+/** 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);
+
+ // read data from the source to fill the buffer
+ bool Fill();
+
+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);
+
+ // return the current reading position
+ uint64_t GetPos() {
+ return nReadPos;
+ }
+
+ // rewind to a given reading position
+ bool SetPos(uint64_t nPos);
+ bool Seek(uint64_t nPos);
+
+ // prevent reading beyond a certain position
+ // no argument removes the limit
+ bool SetLimit(uint64_t nPos = std::numeric_limits<uint64_t>::max());
+
+ 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);
+};
+
+#endif // BITCOIN_STREAMS_H
#define BITCOIN_LEVELDB_H
#include "serialize.h"
+#include "streams.h"
#include <map>
#include <string>
git://git.novaco.in / novacoin.git / commitdiff