1 // Copyright (c) 2009 Satoshi Nakamoto
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2 // Distributed under the MIT/X11 software license, see the accompanying
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3 // file license.txt or http://www.opensource.org/licenses/mit-license.php.
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6 #if defined(_MSC_VER) || defined(__BORLANDC__)
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7 typedef __int64 int64;
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8 typedef unsigned __int64 uint64;
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10 typedef long long int64;
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11 typedef unsigned long long uint64;
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13 #if defined(_MSC_VER) && _MSC_VER < 1300
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14 #define for if (false) ; else for
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18 #define __forceinline inline
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21 #define foreach BOOST_FOREACH
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22 #define loop for (;;)
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23 #define BEGIN(a) ((char*)&(a))
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24 #define END(a) ((char*)&((&(a))[1]))
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25 #define UBEGIN(a) ((unsigned char*)&(a))
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26 #define UEND(a) ((unsigned char*)&((&(a))[1]))
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27 #define ARRAYLEN(array) (sizeof(array)/sizeof((array)[0]))
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30 #define printf OutputDebugStringF
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36 #define snprintf my_snprintf
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39 #if defined(_MSC_VER) || defined(__BORLANDC__) || defined(__MSVCRT__)
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40 #define PRId64 "I64d"
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41 #define PRIu64 "I64u"
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42 #define PRIx64 "I64x"
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44 #define PRId64 "lld"
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45 #define PRIu64 "llu"
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46 #define PRIx64 "llx"
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50 // This is needed because the foreach macro can't get over the comma in pair<t1, t2>
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51 #define PAIRTYPE(t1, t2) pair<t1, t2>
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53 // Used to bypass the rule against non-const reference to temporary
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54 // where it makes sense with wrappers such as CFlatData or CTxDB
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55 template<typename T>
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56 inline T& REF(const T& val)
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71 void RandAddSeed(bool fPerfmon=false);
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72 int my_snprintf(char* buffer, size_t limit, const char* format, ...);
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73 string strprintf(const char* format, ...);
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74 bool error(const char* format, ...);
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75 void PrintException(std::exception* pex, const char* pszThread);
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76 void ParseString(const string& str, char c, vector<string>& v);
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77 string FormatMoney(int64 n, bool fPlus=false);
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78 bool ParseMoney(const char* pszIn, int64& nRet);
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79 bool FileExists(const char* psz);
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80 int GetFilesize(FILE* file);
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81 uint64 GetRand(uint64 nMax);
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83 int64 GetAdjustedTime();
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84 void AddTimeData(unsigned int ip, int64 nTime);
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97 // Wrapper to automatically initialize critical section
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98 // Could use wxCriticalSection for portability, but it doesn't support TryEnterCriticalSection
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99 class CCriticalSection
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102 CRITICAL_SECTION cs;
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106 explicit CCriticalSection() { InitializeCriticalSection(&cs); }
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107 ~CCriticalSection() { DeleteCriticalSection(&cs); }
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108 void Enter() { EnterCriticalSection(&cs); }
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109 void Leave() { LeaveCriticalSection(&cs); }
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110 bool TryEnter() { return TryEnterCriticalSection(&cs); }
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111 CRITICAL_SECTION* operator&() { return &cs; }
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114 // Automatically leave critical section when leaving block, needed for exception safety
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115 class CCriticalBlock
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118 CRITICAL_SECTION* pcs;
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120 CCriticalBlock(CRITICAL_SECTION& csIn) { pcs = &csIn; EnterCriticalSection(pcs); }
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121 CCriticalBlock(CCriticalSection& csIn) { pcs = &csIn; EnterCriticalSection(pcs); }
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122 ~CCriticalBlock() { LeaveCriticalSection(pcs); }
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125 // WARNING: This will catch continue and break!
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126 // break is caught with an assertion, but there's no way to detect continue.
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127 // I'd rather be careful than suffer the other more error prone syntax.
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128 // The compiler will optimise away all this loop junk.
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129 #define CRITICAL_BLOCK(cs) \
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130 for (bool fcriticalblockonce=true; fcriticalblockonce; assert(("break caught by CRITICAL_BLOCK!", !fcriticalblockonce)), fcriticalblockonce=false) \
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131 for (CCriticalBlock criticalblock(cs); fcriticalblockonce && (cs.pszFile=__FILE__, cs.nLine=__LINE__, true); fcriticalblockonce=false, cs.pszFile=NULL, cs.nLine=0)
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133 class CTryCriticalBlock
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136 CRITICAL_SECTION* pcs;
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138 CTryCriticalBlock(CRITICAL_SECTION& csIn) { pcs = (TryEnterCriticalSection(&csIn) ? &csIn : NULL); }
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139 CTryCriticalBlock(CCriticalSection& csIn) { pcs = (TryEnterCriticalSection(&csIn) ? &csIn : NULL); }
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140 ~CTryCriticalBlock() { if (pcs) LeaveCriticalSection(pcs); }
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141 bool Entered() { return pcs != NULL; }
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144 #define TRY_CRITICAL_BLOCK(cs) \
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145 for (bool fcriticalblockonce=true; fcriticalblockonce; assert(("break caught by TRY_CRITICAL_BLOCK!", !fcriticalblockonce)), fcriticalblockonce=false) \
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146 for (CTryCriticalBlock criticalblock(cs); fcriticalblockonce && (fcriticalblockonce = criticalblock.Entered()) && (cs.pszFile=__FILE__, cs.nLine=__LINE__, true); fcriticalblockonce=false, cs.pszFile=NULL, cs.nLine=0)
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159 inline string i64tostr(int64 n)
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161 return strprintf("%"PRId64, n);
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164 inline string itostr(int n)
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166 return strprintf("%d", n);
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169 inline int64 atoi64(const char* psz)
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172 return _atoi64(psz);
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174 return strtoll(psz, NULL, 10);
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178 inline int64 atoi64(const string& str)
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181 return _atoi64(str.c_str());
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183 return strtoll(str.c_str(), NULL, 10);
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187 inline int atoi(const string& str)
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189 return atoi(str.c_str());
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192 inline int roundint(double d)
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194 return (int)(d > 0 ? d + 0.5 : d - 0.5);
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197 template<typename T>
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198 string HexStr(const T itbegin, const T itend, bool fSpaces=true)
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200 const unsigned char* pbegin = (const unsigned char*)&itbegin[0];
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201 const unsigned char* pend = pbegin + (itend - itbegin) * sizeof(itbegin[0]);
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203 for (const unsigned char* p = pbegin; p != pend; p++)
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204 str += strprintf((fSpaces && p != pend-1 ? "%02x " : "%02x"), *p);
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208 template<typename T>
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209 string HexNumStr(const T itbegin, const T itend, bool f0x=true)
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211 const unsigned char* pbegin = (const unsigned char*)&itbegin[0];
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212 const unsigned char* pend = pbegin + (itend - itbegin) * sizeof(itbegin[0]);
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213 string str = (f0x ? "0x" : "");
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214 for (const unsigned char* p = pend-1; p >= pbegin; p--)
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215 str += strprintf("%02X", *p);
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219 template<typename T>
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220 void PrintHex(const T pbegin, const T pend, const char* pszFormat="%s", bool fSpaces=true)
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222 printf(pszFormat, HexStr(pbegin, pend, fSpaces).c_str());
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232 inline int OutputDebugStringF(const char* pszFormat, ...)
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236 FILE* fileout = fopen("debug.log", "a");
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240 va_start(arg_ptr, pszFormat);
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241 vfprintf(fileout, pszFormat, arg_ptr);
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246 // accumulate a line at a time
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247 static CCriticalSection cs_OutputDebugStringF;
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248 CRITICAL_BLOCK(cs_OutputDebugStringF)
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250 static char pszBuffer[50000];
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255 va_start(arg_ptr, pszFormat);
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256 int limit = END(pszBuffer) - pend - 2;
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257 int ret = _vsnprintf(pend, limit, pszFormat, arg_ptr);
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259 if (ret < 0 || ret >= limit)
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261 pend = END(pszBuffer) - 2;
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267 char* p1 = pszBuffer;
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269 while (p2 = strchr(p1, '\n'))
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274 OutputDebugString(p1);
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278 if (p1 != pszBuffer)
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279 memmove(pszBuffer, p1, pend - p1 + 1);
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280 pend -= (p1 - pszBuffer);
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287 // print to console
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289 va_start(arg_ptr, pszFormat);
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290 vprintf(pszFormat, arg_ptr);
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304 inline void heapchk()
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306 if (_heapchk() != _HEAPOK)
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310 // Randomize the stack to help protect against buffer overrun exploits
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311 #define IMPLEMENT_RANDOMIZE_STACK(ThreadFn) \
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313 static char nLoops; \
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315 nLoops = GetRand(50) + 1; \
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316 if (nLoops-- > 1) \
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323 #define CATCH_PRINT_EXCEPTION(pszFn) \
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324 catch (std::exception& e) { \
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325 PrintException(&e, (pszFn)); \
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327 PrintException(NULL, (pszFn)); \
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338 template<typename T1>
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339 inline uint256 Hash(const T1 pbegin, const T1 pend)
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342 SHA256((unsigned char*)&pbegin[0], (pend - pbegin) * sizeof(pbegin[0]), (unsigned char*)&hash1);
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344 SHA256((unsigned char*)&hash1, sizeof(hash1), (unsigned char*)&hash2);
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348 template<typename T1, typename T2>
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349 inline uint256 Hash(const T1 p1begin, const T1 p1end,
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350 const T2 p2begin, const T2 p2end)
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355 SHA256_Update(&ctx, (unsigned char*)&p1begin[0], (p1end - p1begin) * sizeof(p1begin[0]));
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356 SHA256_Update(&ctx, (unsigned char*)&p2begin[0], (p2end - p2begin) * sizeof(p2begin[0]));
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357 SHA256_Final((unsigned char*)&hash1, &ctx);
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359 SHA256((unsigned char*)&hash1, sizeof(hash1), (unsigned char*)&hash2);
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363 template<typename T1, typename T2, typename T3>
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364 inline uint256 Hash(const T1 p1begin, const T1 p1end,
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365 const T2 p2begin, const T2 p2end,
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366 const T3 p3begin, const T3 p3end)
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371 SHA256_Update(&ctx, (unsigned char*)&p1begin[0], (p1end - p1begin) * sizeof(p1begin[0]));
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372 SHA256_Update(&ctx, (unsigned char*)&p2begin[0], (p2end - p2begin) * sizeof(p2begin[0]));
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373 SHA256_Update(&ctx, (unsigned char*)&p3begin[0], (p3end - p3begin) * sizeof(p3begin[0]));
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374 SHA256_Final((unsigned char*)&hash1, &ctx);
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376 SHA256((unsigned char*)&hash1, sizeof(hash1), (unsigned char*)&hash2);
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380 template<typename T>
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381 uint256 SerializeHash(const T& obj, int nType=SER_GETHASH, int nVersion=VERSION)
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383 // Most of the time is spent allocating and deallocating CDataStream's
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384 // buffer. If this ever needs to be optimized further, make a CStaticStream
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385 // class with its buffer on the stack.
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386 CDataStream ss(nType, nVersion);
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389 return Hash(ss.begin(), ss.end());
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392 inline uint160 Hash160(const vector<unsigned char>& vch)
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395 SHA256(&vch[0], vch.size(), (unsigned char*)&hash1);
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397 RIPEMD160((unsigned char*)&hash1, sizeof(hash1), (unsigned char*)&hash2);
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