diff options
Diffstat (limited to 'util.h')
| -rw-r--r-- | util.h | 399 |
1 files changed, 399 insertions, 0 deletions
diff --git a/util.h b/util.h new file mode 100644 index 0000000000..97617ab490 --- /dev/null +++ b/util.h @@ -0,0 +1,399 @@ +// Copyright (c) 2009 Satoshi Nakamoto
+// Distributed under the MIT/X11 software license, see the accompanying
+// file license.txt or http://www.opensource.org/licenses/mit-license.php.
+
+
+#if defined(_MSC_VER) || defined(__BORLANDC__)
+typedef __int64 int64;
+typedef unsigned __int64 uint64;
+#else
+typedef long long int64;
+typedef unsigned long long uint64;
+#endif
+#if defined(_MSC_VER) && _MSC_VER < 1300
+#define for if (false) ; else for
+#endif
+
+#ifndef _MSC_VER
+#define __forceinline inline
+#endif
+
+#define foreach BOOST_FOREACH
+#define loop for (;;)
+#define BEGIN(a) ((char*)&(a))
+#define END(a) ((char*)&((&(a))[1]))
+#define UBEGIN(a) ((unsigned char*)&(a))
+#define UEND(a) ((unsigned char*)&((&(a))[1]))
+#define ARRAYLEN(array) (sizeof(array)/sizeof((array)[0]))
+
+#ifdef _WINDOWS
+#define printf OutputDebugStringF
+#endif
+
+#ifdef snprintf
+#undef snprintf
+#endif
+#define snprintf my_snprintf
+
+#ifndef PRId64
+#if defined(_MSC_VER) || defined(__BORLANDC__) || defined(__MSVCRT__)
+#define PRId64 "I64d"
+#define PRIu64 "I64u"
+#define PRIx64 "I64x"
+#else
+#define PRId64 "lld"
+#define PRIu64 "llu"
+#define PRIx64 "llx"
+#endif
+#endif
+
+// This is needed because the foreach macro can't get over the comma in pair<t1, t2>
+#define PAIRTYPE(t1, t2) pair<t1, t2>
+
+// 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 (T&)val;
+}
+
+
+
+
+
+
+
+
+
+extern bool fDebug;
+
+void RandAddSeed(bool fPerfmon=false);
+int my_snprintf(char* buffer, size_t limit, const char* format, ...);
+string strprintf(const char* format, ...);
+bool error(const char* format, ...);
+void PrintException(std::exception* pex, const char* pszThread);
+void ParseString(const string& str, char c, vector<string>& v);
+string FormatMoney(int64 n, bool fPlus=false);
+bool ParseMoney(const char* pszIn, int64& nRet);
+bool FileExists(const char* psz);
+int GetFilesize(FILE* file);
+uint64 GetRand(uint64 nMax);
+int64 GetTime();
+int64 GetAdjustedTime();
+void AddTimeData(unsigned int ip, int64 nTime);
+
+
+
+
+
+
+
+
+
+
+
+
+// Wrapper to automatically initialize critical section
+// Could use wxCriticalSection for portability, but it doesn't support TryEnterCriticalSection
+class CCriticalSection
+{
+protected:
+ CRITICAL_SECTION cs;
+public:
+ char* pszFile;
+ int nLine;
+ explicit CCriticalSection() { InitializeCriticalSection(&cs); }
+ ~CCriticalSection() { DeleteCriticalSection(&cs); }
+ void Enter() { EnterCriticalSection(&cs); }
+ void Leave() { LeaveCriticalSection(&cs); }
+ bool TryEnter() { return TryEnterCriticalSection(&cs); }
+ CRITICAL_SECTION* operator&() { return &cs; }
+};
+
+// Automatically leave critical section when leaving block, needed for exception safety
+class CCriticalBlock
+{
+protected:
+ CRITICAL_SECTION* pcs;
+public:
+ CCriticalBlock(CRITICAL_SECTION& csIn) { pcs = &csIn; EnterCriticalSection(pcs); }
+ CCriticalBlock(CCriticalSection& csIn) { pcs = &csIn; EnterCriticalSection(pcs); }
+ ~CCriticalBlock() { LeaveCriticalSection(pcs); }
+};
+
+// WARNING: This will catch continue and break!
+// break is caught with an assertion, but there's no way to detect continue.
+// I'd rather be careful than suffer the other more error prone syntax.
+// The compiler will optimise away all this loop junk.
+#define CRITICAL_BLOCK(cs) \
+ for (bool fcriticalblockonce=true; fcriticalblockonce; assert(("break caught by CRITICAL_BLOCK!", !fcriticalblockonce)), fcriticalblockonce=false) \
+ for (CCriticalBlock criticalblock(cs); fcriticalblockonce && (cs.pszFile=__FILE__, cs.nLine=__LINE__, true); fcriticalblockonce=false, cs.pszFile=NULL, cs.nLine=0)
+
+class CTryCriticalBlock
+{
+protected:
+ CRITICAL_SECTION* pcs;
+public:
+ CTryCriticalBlock(CRITICAL_SECTION& csIn) { pcs = (TryEnterCriticalSection(&csIn) ? &csIn : NULL); }
+ CTryCriticalBlock(CCriticalSection& csIn) { pcs = (TryEnterCriticalSection(&csIn) ? &csIn : NULL); }
+ ~CTryCriticalBlock() { if (pcs) LeaveCriticalSection(pcs); }
+ bool Entered() { return pcs != NULL; }
+};
+
+#define TRY_CRITICAL_BLOCK(cs) \
+ for (bool fcriticalblockonce=true; fcriticalblockonce; assert(("break caught by TRY_CRITICAL_BLOCK!", !fcriticalblockonce)), fcriticalblockonce=false) \
+ for (CTryCriticalBlock criticalblock(cs); fcriticalblockonce && (fcriticalblockonce = criticalblock.Entered()) && (cs.pszFile=__FILE__, cs.nLine=__LINE__, true); fcriticalblockonce=false, cs.pszFile=NULL, cs.nLine=0)
+
+
+
+
+
+
+
+
+
+
+
+
+inline string i64tostr(int64 n)
+{
+ return strprintf("%"PRId64, n);
+}
+
+inline string itostr(int n)
+{
+ return strprintf("%d", n);
+}
+
+inline int64 atoi64(const char* psz)
+{
+#ifdef _MSC_VER
+ return _atoi64(psz);
+#else
+ return strtoll(psz, NULL, 10);
+#endif
+}
+
+inline int64 atoi64(const string& str)
+{
+#ifdef _MSC_VER
+ return _atoi64(str.c_str());
+#else
+ return strtoll(str.c_str(), NULL, 10);
+#endif
+}
+
+inline int atoi(const string& str)
+{
+ return atoi(str.c_str());
+}
+
+inline int roundint(double d)
+{
+ return (int)(d > 0 ? d + 0.5 : d - 0.5);
+}
+
+template<typename T>
+string HexStr(const T itbegin, const T itend, bool fSpaces=true)
+{
+ const unsigned char* pbegin = (const unsigned char*)&itbegin[0];
+ const unsigned char* pend = pbegin + (itend - itbegin) * sizeof(itbegin[0]);
+ string str;
+ for (const unsigned char* p = pbegin; p != pend; p++)
+ str += strprintf((fSpaces && p != pend-1 ? "%02x " : "%02x"), *p);
+ return str;
+}
+
+template<typename T>
+string HexNumStr(const T itbegin, const T itend, bool f0x=true)
+{
+ const unsigned char* pbegin = (const unsigned char*)&itbegin[0];
+ const unsigned char* pend = pbegin + (itend - itbegin) * sizeof(itbegin[0]);
+ string str = (f0x ? "0x" : "");
+ for (const unsigned char* p = pend-1; p >= pbegin; p--)
+ str += strprintf("%02X", *p);
+ return str;
+}
+
+template<typename T>
+void PrintHex(const T pbegin, const T pend, const char* pszFormat="%s", bool fSpaces=true)
+{
+ printf(pszFormat, HexStr(pbegin, pend, fSpaces).c_str());
+}
+
+
+
+
+
+
+
+
+inline int OutputDebugStringF(const char* pszFormat, ...)
+{
+#ifdef __WXDEBUG__
+ // log file
+ FILE* fileout = fopen("debug.log", "a");
+ if (fileout)
+ {
+ va_list arg_ptr;
+ va_start(arg_ptr, pszFormat);
+ vfprintf(fileout, pszFormat, arg_ptr);
+ va_end(arg_ptr);
+ fclose(fileout);
+ }
+
+ // accumulate a line at a time
+ static CCriticalSection cs_OutputDebugStringF;
+ CRITICAL_BLOCK(cs_OutputDebugStringF)
+ {
+ static char pszBuffer[50000];
+ static char* pend;
+ if (pend == NULL)
+ pend = pszBuffer;
+ va_list arg_ptr;
+ va_start(arg_ptr, pszFormat);
+ int limit = END(pszBuffer) - pend - 2;
+ int ret = _vsnprintf(pend, limit, pszFormat, arg_ptr);
+ va_end(arg_ptr);
+ if (ret < 0 || ret >= limit)
+ {
+ pend = END(pszBuffer) - 2;
+ *pend++ = '\n';
+ }
+ else
+ pend += ret;
+ *pend = '\0';
+ char* p1 = pszBuffer;
+ char* p2;
+ while (p2 = strchr(p1, '\n'))
+ {
+ p2++;
+ char c = *p2;
+ *p2 = '\0';
+ OutputDebugString(p1);
+ *p2 = c;
+ p1 = p2;
+ }
+ if (p1 != pszBuffer)
+ memmove(pszBuffer, p1, pend - p1 + 1);
+ pend -= (p1 - pszBuffer);
+ return ret;
+ }
+#endif
+
+ if (!wxTheApp)
+ {
+ // print to console
+ va_list arg_ptr;
+ va_start(arg_ptr, pszFormat);
+ vprintf(pszFormat, arg_ptr);
+ va_end(arg_ptr);
+ }
+ return 0;
+}
+
+
+
+
+
+
+
+
+
+inline void heapchk()
+{
+ if (_heapchk() != _HEAPOK)
+ DebugBreak();
+}
+
+// Randomize the stack to help protect against buffer overrun exploits
+#define IMPLEMENT_RANDOMIZE_STACK(ThreadFn) \
+ { \
+ static char nLoops; \
+ if (nLoops <= 0) \
+ nLoops = GetRand(50) + 1; \
+ if (nLoops-- > 1) \
+ { \
+ ThreadFn; \
+ return; \
+ } \
+ }
+
+#define CATCH_PRINT_EXCEPTION(pszFn) \
+ catch (std::exception& e) { \
+ PrintException(&e, (pszFn)); \
+ } catch (...) { \
+ PrintException(NULL, (pszFn)); \
+ }
+
+
+
+
+
+
+
+
+
+template<typename T1>
+inline uint256 Hash(const T1 pbegin, const T1 pend)
+{
+ uint256 hash1;
+ SHA256((unsigned char*)&pbegin[0], (pend - pbegin) * sizeof(pbegin[0]), (unsigned char*)&hash1);
+ uint256 hash2;
+ SHA256((unsigned char*)&hash1, sizeof(hash1), (unsigned char*)&hash2);
+ return hash2;
+}
+
+template<typename T1, typename T2>
+inline uint256 Hash(const T1 p1begin, const T1 p1end,
+ const T2 p2begin, const T2 p2end)
+{
+ uint256 hash1;
+ SHA256_CTX ctx;
+ SHA256_Init(&ctx);
+ SHA256_Update(&ctx, (unsigned char*)&p1begin[0], (p1end - p1begin) * sizeof(p1begin[0]));
+ SHA256_Update(&ctx, (unsigned char*)&p2begin[0], (p2end - p2begin) * sizeof(p2begin[0]));
+ SHA256_Final((unsigned char*)&hash1, &ctx);
+ uint256 hash2;
+ SHA256((unsigned char*)&hash1, sizeof(hash1), (unsigned char*)&hash2);
+ return hash2;
+}
+
+template<typename T1, typename T2, typename T3>
+inline uint256 Hash(const T1 p1begin, const T1 p1end,
+ const T2 p2begin, const T2 p2end,
+ const T3 p3begin, const T3 p3end)
+{
+ uint256 hash1;
+ SHA256_CTX ctx;
+ SHA256_Init(&ctx);
+ SHA256_Update(&ctx, (unsigned char*)&p1begin[0], (p1end - p1begin) * sizeof(p1begin[0]));
+ SHA256_Update(&ctx, (unsigned char*)&p2begin[0], (p2end - p2begin) * sizeof(p2begin[0]));
+ SHA256_Update(&ctx, (unsigned char*)&p3begin[0], (p3end - p3begin) * sizeof(p3begin[0]));
+ SHA256_Final((unsigned char*)&hash1, &ctx);
+ uint256 hash2;
+ SHA256((unsigned char*)&hash1, sizeof(hash1), (unsigned char*)&hash2);
+ return hash2;
+}
+
+template<typename T>
+uint256 SerializeHash(const T& obj, int nType=SER_GETHASH, int nVersion=VERSION)
+{
+ // Most of the time is spent allocating and deallocating CDataStream's
+ // buffer. If this ever needs to be optimized further, make a CStaticStream
+ // class with its buffer on the stack.
+ CDataStream ss(nType, nVersion);
+ ss.reserve(10000);
+ ss << obj;
+ return Hash(ss.begin(), ss.end());
+}
+
+inline uint160 Hash160(const vector<unsigned char>& vch)
+{
+ uint256 hash1;
+ SHA256(&vch[0], vch.size(), (unsigned char*)&hash1);
+ uint160 hash2;
+ RIPEMD160((unsigned char*)&hash1, sizeof(hash1), (unsigned char*)&hash2);
+ return hash2;
+}
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