Merge branch 'master' of github.com:bitcoin/bitcoin

1 files changed, 657 insertions, 0 deletions

diff --git a/src/util.h b/src/util.h
new file mode 100644
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;
+}