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-rw-r--r--src/util.h657
1 files changed, 657 insertions, 0 deletions
diff --git a/src/util.h b/src/util.h
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index 0000000000..44afffcbf6
--- /dev/null
+++ b/src/util.h
@@ -0,0 +1,657 @@
+// Copyright (c) 2009-2010 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]))
+#define printf OutputDebugStringF
+
+#ifdef snprintf
+#undef snprintf
+#endif
+#define snprintf my_snprintf
+
+#ifndef PRI64d
+#if defined(_MSC_VER) || defined(__BORLANDC__) || defined(__MSVCRT__)
+#define PRI64d "I64d"
+#define PRI64u "I64u"
+#define PRI64x "I64x"
+#else
+#define PRI64d "lld"
+#define PRI64u "llu"
+#define PRI64x "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;
+}
+
+// Align by increasing pointer, must have extra space at end of buffer
+template <size_t nBytes, typename T>
+T* alignup(T* p)
+{
+ union
+ {
+ T* ptr;
+ size_t n;
+ } u;
+ u.ptr = p;
+ u.n = (u.n + (nBytes-1)) & ~(nBytes-1);
+ return u.ptr;
+}
+
+#ifdef __WXMSW__
+#define MSG_NOSIGNAL 0
+#define MSG_DONTWAIT 0
+#ifndef UINT64_MAX
+#define UINT64_MAX _UI64_MAX
+#define INT64_MAX _I64_MAX
+#define INT64_MIN _I64_MIN
+#endif
+#ifndef S_IRUSR
+#define S_IRUSR 0400
+#define S_IWUSR 0200
+#endif
+#define unlink _unlink
+typedef int socklen_t;
+#else
+#define WSAGetLastError() errno
+#define WSAEWOULDBLOCK EWOULDBLOCK
+#define WSAEMSGSIZE EMSGSIZE
+#define WSAEINTR EINTR
+#define WSAEINPROGRESS EINPROGRESS
+#define WSAEADDRINUSE EADDRINUSE
+#define WSAENOTSOCK EBADF
+#define INVALID_SOCKET (SOCKET)(~0)
+#define SOCKET_ERROR -1
+typedef u_int SOCKET;
+#define _vsnprintf(a,b,c,d) vsnprintf(a,b,c,d)
+#define strlwr(psz) to_lower(psz)
+#define _strlwr(psz) to_lower(psz)
+#define MAX_PATH 1024
+#define Beep(n1,n2) (0)
+inline void Sleep(int64 n)
+{
+ boost::thread::sleep(boost::get_system_time() + boost::posix_time::milliseconds(n));
+}
+#endif
+
+inline int myclosesocket(SOCKET& hSocket)
+{
+ if (hSocket == INVALID_SOCKET)
+ return WSAENOTSOCK;
+#ifdef __WXMSW__
+ int ret = closesocket(hSocket);
+#else
+ int ret = close(hSocket);
+#endif
+ hSocket = INVALID_SOCKET;
+ return ret;
+}
+#define closesocket(s) myclosesocket(s)
+
+#ifndef GUI
+inline const char* _(const char* psz)
+{
+ return psz;
+}
+#endif
+
+
+
+
+
+
+
+
+
+
+extern map<string, string> mapArgs;
+extern map<string, vector<string> > mapMultiArgs;
+extern bool fDebug;
+extern bool fPrintToConsole;
+extern bool fPrintToDebugger;
+extern char pszSetDataDir[MAX_PATH];
+extern bool fRequestShutdown;
+extern bool fShutdown;
+extern bool fDaemon;
+extern bool fServer;
+extern bool fCommandLine;
+extern string strMiscWarning;
+extern bool fTestNet;
+extern bool fNoListen;
+extern bool fLogTimestamps;
+
+void RandAddSeed();
+void RandAddSeedPerfmon();
+int OutputDebugStringF(const char* pszFormat, ...);
+int my_snprintf(char* buffer, size_t limit, const char* format, ...);
+string strprintf(const char* format, ...);
+bool error(const char* format, ...);
+void LogException(std::exception* pex, const char* pszThread);
+void PrintException(std::exception* pex, const char* pszThread);
+void PrintExceptionContinue(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 string& str, int64& nRet);
+bool ParseMoney(const char* pszIn, int64& nRet);
+vector<unsigned char> ParseHex(const char* psz);
+vector<unsigned char> ParseHex(const string& str);
+void ParseParameters(int argc, char* argv[]);
+const char* wxGetTranslation(const char* psz);
+bool WildcardMatch(const char* psz, const char* mask);
+bool WildcardMatch(const string& str, const string& mask);
+int GetFilesize(FILE* file);
+void GetDataDir(char* pszDirRet);
+string GetConfigFile();
+string GetPidFile();
+void CreatePidFile(string pidFile, pid_t pid);
+void ReadConfigFile(map<string, string>& mapSettingsRet, map<string, vector<string> >& mapMultiSettingsRet);
+#ifdef __WXMSW__
+string MyGetSpecialFolderPath(int nFolder, bool fCreate);
+#endif
+string GetDefaultDataDir();
+string GetDataDir();
+void ShrinkDebugFile();
+int GetRandInt(int nMax);
+uint64 GetRand(uint64 nMax);
+int64 GetTime();
+int64 GetAdjustedTime();
+void AddTimeData(unsigned int ip, int64 nTime);
+string FormatFullVersion();
+
+
+
+
+
+
+
+
+
+
+
+
+
+// Wrapper to automatically initialize critical sections
+class CCriticalSection
+{
+#ifdef __WXMSW__
+protected:
+ CRITICAL_SECTION cs;
+public:
+ explicit CCriticalSection() { InitializeCriticalSection(&cs); }
+ ~CCriticalSection() { DeleteCriticalSection(&cs); }
+ void Enter() { EnterCriticalSection(&cs); }
+ void Leave() { LeaveCriticalSection(&cs); }
+ bool TryEnter() { return TryEnterCriticalSection(&cs); }
+#else
+protected:
+ boost::interprocess::interprocess_recursive_mutex mutex;
+public:
+ explicit CCriticalSection() { }
+ ~CCriticalSection() { }
+ void Enter() { mutex.lock(); }
+ void Leave() { mutex.unlock(); }
+ bool TryEnter() { return mutex.try_lock(); }
+#endif
+public:
+ const char* pszFile;
+ int nLine;
+};
+
+// Automatically leave critical section when leaving block, needed for exception safety
+class CCriticalBlock
+{
+protected:
+ CCriticalSection* pcs;
+public:
+ CCriticalBlock(CCriticalSection& csIn) { pcs = &csIn; pcs->Enter(); }
+ ~CCriticalBlock() { pcs->Leave(); }
+};
+
+// 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:
+ CCriticalSection* pcs;
+public:
+ CTryCriticalBlock(CCriticalSection& csIn) { pcs = (csIn.TryEnter() ? &csIn : NULL); }
+ ~CTryCriticalBlock() { if (pcs) pcs->Leave(); }
+ 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("%"PRI64d, 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);
+}
+
+inline int64 roundint64(double d)
+{
+ return (int64)(d > 0 ? d + 0.5 : d - 0.5);
+}
+
+inline int64 abs64(int64 n)
+{
+ return (n >= 0 ? n : -n);
+}
+
+template<typename T>
+string HexStr(const T itbegin, const T itend, bool fSpaces=false)
+{
+ if (itbegin == itend)
+ return "";
+ const unsigned char* pbegin = (const unsigned char*)&itbegin[0];
+ const unsigned char* pend = pbegin + (itend - itbegin) * sizeof(itbegin[0]);
+ string str;
+ str.reserve((pend-pbegin) * (fSpaces ? 3 : 2));
+ for (const unsigned char* p = pbegin; p != pend; p++)
+ str += strprintf((fSpaces && p != pend-1 ? "%02x " : "%02x"), *p);
+ return str;
+}
+
+inline string HexStr(const vector<unsigned char>& vch, bool fSpaces=false)
+{
+ return HexStr(vch.begin(), vch.end(), fSpaces);
+}
+
+template<typename T>
+string HexNumStr(const T itbegin, const T itend, bool f0x=true)
+{
+ if (itbegin == itend)
+ return "";
+ const unsigned char* pbegin = (const unsigned char*)&itbegin[0];
+ const unsigned char* pend = pbegin + (itend - itbegin) * sizeof(itbegin[0]);
+ string str = (f0x ? "0x" : "");
+ str.reserve(str.size() + (pend-pbegin) * 2);
+ for (const unsigned char* p = pend-1; p >= pbegin; p--)
+ str += strprintf("%02x", *p);
+ return str;
+}
+
+inline string HexNumStr(const vector<unsigned char>& vch, bool f0x=true)
+{
+ return HexNumStr(vch.begin(), vch.end(), f0x);
+}
+
+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 void PrintHex(const vector<unsigned char>& vch, const char* pszFormat="%s", bool fSpaces=true)
+{
+ printf(pszFormat, HexStr(vch, fSpaces).c_str());
+}
+
+inline int64 GetPerformanceCounter()
+{
+ int64 nCounter = 0;
+#ifdef __WXMSW__
+ QueryPerformanceCounter((LARGE_INTEGER*)&nCounter);
+#else
+ timeval t;
+ gettimeofday(&t, NULL);
+ nCounter = t.tv_sec * 1000000 + t.tv_usec;
+#endif
+ return nCounter;
+}
+
+inline int64 GetTimeMillis()
+{
+ return (posix_time::ptime(posix_time::microsec_clock::universal_time()) -
+ posix_time::ptime(gregorian::date(1970,1,1))).total_milliseconds();
+}
+
+inline string DateTimeStrFormat(const char* pszFormat, int64 nTime)
+{
+ time_t n = nTime;
+ struct tm* ptmTime = gmtime(&n);
+ char pszTime[200];
+ strftime(pszTime, sizeof(pszTime), pszFormat, ptmTime);
+ return pszTime;
+}
+
+template<typename T>
+void skipspaces(T& it)
+{
+ while (isspace(*it))
+ ++it;
+}
+
+inline bool IsSwitchChar(char c)
+{
+#ifdef __WXMSW__
+ return c == '-' || c == '/';
+#else
+ return c == '-';
+#endif
+}
+
+inline string GetArg(const string& strArg, const string& strDefault)
+{
+ if (mapArgs.count(strArg))
+ return mapArgs[strArg];
+ return strDefault;
+}
+
+inline int64 GetArg(const string& strArg, int64 nDefault)
+{
+ if (mapArgs.count(strArg))
+ return atoi64(mapArgs[strArg]);
+ return nDefault;
+}
+
+inline bool GetBoolArg(const string& strArg)
+{
+ if (mapArgs.count(strArg))
+ {
+ if (mapArgs[strArg].empty())
+ return true;
+ return (atoi(mapArgs[strArg]) != 0);
+ }
+ return false;
+}
+
+
+
+
+
+
+
+
+
+
+inline void heapchk()
+{
+#ifdef __WXMSW__
+ /// for debugging
+ //if (_heapchk() != _HEAPOK)
+ // DebugBreak();
+#endif
+}
+
+// Randomize the stack to help protect against buffer overrun exploits
+#define IMPLEMENT_RANDOMIZE_STACK(ThreadFn) \
+ { \
+ static char nLoops; \
+ if (nLoops <= 0) \
+ nLoops = GetRand(20) + 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)
+{
+ static unsigned char pblank[1];
+ uint256 hash1;
+ SHA256((pbegin == pend ? pblank : (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)
+{
+ static unsigned char pblank[1];
+ uint256 hash1;
+ SHA256_CTX ctx;
+ SHA256_Init(&ctx);
+ SHA256_Update(&ctx, (p1begin == p1end ? pblank : (unsigned char*)&p1begin[0]), (p1end - p1begin) * sizeof(p1begin[0]));
+ SHA256_Update(&ctx, (p2begin == p2end ? pblank : (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)
+{
+ static unsigned char pblank[1];
+ uint256 hash1;
+ SHA256_CTX ctx;
+ SHA256_Init(&ctx);
+ SHA256_Update(&ctx, (p1begin == p1end ? pblank : (unsigned char*)&p1begin[0]), (p1end - p1begin) * sizeof(p1begin[0]));
+ SHA256_Update(&ctx, (p2begin == p2end ? pblank : (unsigned char*)&p2begin[0]), (p2end - p2begin) * sizeof(p2begin[0]));
+ SHA256_Update(&ctx, (p3begin == p3end ? pblank : (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;
+}
+
+
+
+
+
+
+
+
+
+
+
+// Note: It turns out we might have been able to use boost::thread
+// by using TerminateThread(boost::thread.native_handle(), 0);
+#ifdef __WXMSW__
+typedef HANDLE pthread_t;
+
+inline pthread_t CreateThread(void(*pfn)(void*), void* parg, bool fWantHandle=false)
+{
+ DWORD nUnused = 0;
+ HANDLE hthread =
+ CreateThread(
+ NULL, // default security
+ 0, // inherit stack size from parent
+ (LPTHREAD_START_ROUTINE)pfn, // function pointer
+ parg, // argument
+ 0, // creation option, start immediately
+ &nUnused); // thread identifier
+ if (hthread == NULL)
+ {
+ printf("Error: CreateThread() returned %d\n", GetLastError());
+ return (pthread_t)0;
+ }
+ if (!fWantHandle)
+ {
+ CloseHandle(hthread);
+ return (pthread_t)-1;
+ }
+ return hthread;
+}
+
+inline void SetThreadPriority(int nPriority)
+{
+ SetThreadPriority(GetCurrentThread(), nPriority);
+}
+#else
+inline pthread_t CreateThread(void(*pfn)(void*), void* parg, bool fWantHandle=false)
+{
+ pthread_t hthread = 0;
+ int ret = pthread_create(&hthread, NULL, (void*(*)(void*))pfn, parg);
+ if (ret != 0)
+ {
+ printf("Error: pthread_create() returned %d\n", ret);
+ return (pthread_t)0;
+ }
+ if (!fWantHandle)
+ return (pthread_t)-1;
+ return hthread;
+}
+
+#define THREAD_PRIORITY_LOWEST PRIO_MAX
+#define THREAD_PRIORITY_BELOW_NORMAL 2
+#define THREAD_PRIORITY_NORMAL 0
+#define THREAD_PRIORITY_ABOVE_NORMAL 0
+
+inline void SetThreadPriority(int nPriority)
+{
+ // It's unclear if it's even possible to change thread priorities on Linux,
+ // but we really and truly need it for the generation threads.
+#ifdef PRIO_THREAD
+ setpriority(PRIO_THREAD, 0, nPriority);
+#else
+ setpriority(PRIO_PROCESS, 0, nPriority);
+#endif
+}
+
+inline bool TerminateThread(pthread_t hthread, unsigned int nExitCode)
+{
+ return (pthread_cancel(hthread) == 0);
+}
+
+inline void ExitThread(unsigned int nExitCode)
+{
+ pthread_exit((void*)nExitCode);
+}
+#endif
+
+
+
+
+
+inline bool AffinityBugWorkaround(void(*pfn)(void*))
+{
+#ifdef __WXMSW__
+ // Sometimes after a few hours affinity gets stuck on one processor
+ DWORD dwProcessAffinityMask = -1;
+ DWORD dwSystemAffinityMask = -1;
+ GetProcessAffinityMask(GetCurrentProcess(), &dwProcessAffinityMask, &dwSystemAffinityMask);
+ DWORD dwPrev1 = SetThreadAffinityMask(GetCurrentThread(), dwProcessAffinityMask);
+ DWORD dwPrev2 = SetThreadAffinityMask(GetCurrentThread(), dwProcessAffinityMask);
+ if (dwPrev2 != dwProcessAffinityMask)
+ {
+ printf("AffinityBugWorkaround() : SetThreadAffinityMask=%d, ProcessAffinityMask=%d, restarting thread\n", dwPrev2, dwProcessAffinityMask);
+ if (!CreateThread(pfn, NULL))
+ printf("Error: CreateThread() failed\n");
+ return true;
+ }
+#endif
+ return false;
+}
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