1 // Copyright (c) 2009-2010 Satoshi Nakamoto
2 // Distributed under the MIT/X11 software license, see the accompanying
3 // file license.txt or http://www.opensource.org/licenses/mit-license.php.
10 #include <sys/types.h>
12 #include <sys/resource.h>
18 #include <boost/foreach.hpp>
19 #include <boost/thread.hpp>
20 #include <boost/interprocess/sync/interprocess_recursive_mutex.hpp>
21 #include <boost/date_time/gregorian/gregorian_types.hpp>
22 #include <boost/date_time/posix_time/posix_time_types.hpp>
24 #include <openssl/sha.h>
25 #include <openssl/ripemd.h>
28 #if defined(_MSC_VER) || defined(__BORLANDC__)
29 typedef __int64 int64;
30 typedef unsigned __int64 uint64;
32 typedef long long int64;
33 typedef unsigned long long uint64;
35 #if defined(_MSC_VER) && _MSC_VER < 1300
36 #define for if (false) ; else for
39 #define __forceinline inline
43 #define BEGIN(a) ((char*)&(a))
44 #define END(a) ((char*)&((&(a))[1]))
45 #define UBEGIN(a) ((unsigned char*)&(a))
46 #define UEND(a) ((unsigned char*)&((&(a))[1]))
47 #define ARRAYLEN(array) (sizeof(array)/sizeof((array)[0]))
48 #define printf OutputDebugStringF
53 #define snprintf my_snprintf
56 #if defined(_MSC_VER) || defined(__BORLANDC__) || defined(__MSVCRT__)
67 // This is needed because the foreach macro can't get over the comma in pair<t1, t2>
68 #define PAIRTYPE(t1, t2) std::pair<t1, t2>
70 // Used to bypass the rule against non-const reference to temporary
71 // where it makes sense with wrappers such as CFlatData or CTxDB
73 inline T& REF(const T& val)
78 // Align by increasing pointer, must have extra space at end of buffer
79 template <size_t nBytes, typename T>
88 u.n = (u.n + (nBytes-1)) & ~(nBytes-1);
93 #define MSG_NOSIGNAL 0
94 #define MSG_DONTWAIT 0
96 #define UINT64_MAX _UI64_MAX
97 #define INT64_MAX _I64_MAX
98 #define INT64_MIN _I64_MIN
104 #define unlink _unlink
105 typedef int socklen_t;
107 #define WSAGetLastError() errno
108 #define WSAEWOULDBLOCK EWOULDBLOCK
109 #define WSAEMSGSIZE EMSGSIZE
110 #define WSAEINTR EINTR
111 #define WSAEINPROGRESS EINPROGRESS
112 #define WSAEADDRINUSE EADDRINUSE
113 #define WSAENOTSOCK EBADF
114 #define INVALID_SOCKET (SOCKET)(~0)
115 #define SOCKET_ERROR -1
116 typedef u_int SOCKET;
117 #define _vsnprintf(a,b,c,d) vsnprintf(a,b,c,d)
118 #define strlwr(psz) to_lower(psz)
119 #define _strlwr(psz) to_lower(psz)
120 #define MAX_PATH 1024
121 #define Beep(n1,n2) (0)
122 inline void Sleep(int64 n)
124 boost::thread::sleep(boost::get_system_time() + boost::posix_time::milliseconds(n));
128 inline int myclosesocket(SOCKET& hSocket)
130 if (hSocket == INVALID_SOCKET)
133 int ret = closesocket(hSocket);
135 int ret = close(hSocket);
137 hSocket = INVALID_SOCKET;
140 #define closesocket(s) myclosesocket(s)
143 inline const char* _(const char* psz)
158 extern std::map<std::string, std::string> mapArgs;
159 extern std::map<std::string, std::vector<std::string> > mapMultiArgs;
161 extern bool fPrintToConsole;
162 extern bool fPrintToDebugger;
163 extern char pszSetDataDir[MAX_PATH];
164 extern bool fRequestShutdown;
165 extern bool fShutdown;
168 extern bool fCommandLine;
169 extern std::string strMiscWarning;
170 extern bool fTestNet;
171 extern bool fNoListen;
172 extern bool fLogTimestamps;
175 void RandAddSeedPerfmon();
176 int OutputDebugStringF(const char* pszFormat, ...);
177 int my_snprintf(char* buffer, size_t limit, const char* format, ...);
178 std::string strprintf(const char* format, ...);
179 bool error(const char* format, ...);
180 void LogException(std::exception* pex, const char* pszThread);
181 void PrintException(std::exception* pex, const char* pszThread);
182 void PrintExceptionContinue(std::exception* pex, const char* pszThread);
183 void ParseString(const std::string& str, char c, std::vector<std::string>& v);
184 std::string FormatMoney(int64 n, bool fPlus=false);
185 bool ParseMoney(const std::string& str, int64& nRet);
186 bool ParseMoney(const char* pszIn, int64& nRet);
187 std::vector<unsigned char> ParseHex(const char* psz);
188 std::vector<unsigned char> ParseHex(const std::string& str);
189 void ParseParameters(int argc, char* argv[]);
190 const char* wxGetTranslation(const char* psz);
191 bool WildcardMatch(const char* psz, const char* mask);
192 bool WildcardMatch(const std::string& str, const std::string& mask);
193 int GetFilesize(FILE* file);
194 void GetDataDir(char* pszDirRet);
195 std::string GetConfigFile();
196 std::string GetPidFile();
197 void CreatePidFile(std::string pidFile, pid_t pid);
198 void ReadConfigFile(std::map<std::string, std::string>& mapSettingsRet, std::map<std::string, std::vector<std::string> >& mapMultiSettingsRet);
200 std::string MyGetSpecialFolderPath(int nFolder, bool fCreate);
202 std::string GetDefaultDataDir();
203 std::string GetDataDir();
204 void ShrinkDebugFile();
205 int GetRandInt(int nMax);
206 uint64 GetRand(uint64 nMax);
208 int64 GetAdjustedTime();
209 void AddTimeData(unsigned int ip, int64 nTime);
210 std::string FormatFullVersion();
224 // Wrapper to automatically initialize critical sections
225 class CCriticalSection
231 explicit CCriticalSection() { InitializeCriticalSection(&cs); }
232 ~CCriticalSection() { DeleteCriticalSection(&cs); }
233 void Enter() { EnterCriticalSection(&cs); }
234 void Leave() { LeaveCriticalSection(&cs); }
235 bool TryEnter() { return TryEnterCriticalSection(&cs); }
238 boost::interprocess::interprocess_recursive_mutex mutex;
240 explicit CCriticalSection() { }
241 ~CCriticalSection() { }
242 void Enter() { mutex.lock(); }
243 void Leave() { mutex.unlock(); }
244 bool TryEnter() { return mutex.try_lock(); }
251 // Automatically leave critical section when leaving block, needed for exception safety
255 CCriticalSection* pcs;
257 CCriticalBlock(CCriticalSection& csIn) { pcs = &csIn; pcs->Enter(); }
258 ~CCriticalBlock() { pcs->Leave(); }
261 // WARNING: This will catch continue and break!
262 // break is caught with an assertion, but there's no way to detect continue.
263 // I'd rather be careful than suffer the other more error prone syntax.
264 // The compiler will optimise away all this loop junk.
265 #define CRITICAL_BLOCK(cs) \
266 for (bool fcriticalblockonce=true; fcriticalblockonce; assert(("break caught by CRITICAL_BLOCK!", !fcriticalblockonce)), fcriticalblockonce=false) \
267 for (CCriticalBlock criticalblock(cs); fcriticalblockonce && (cs.pszFile=__FILE__, cs.nLine=__LINE__, true); fcriticalblockonce=false, cs.pszFile=NULL, cs.nLine=0)
269 class CTryCriticalBlock
272 CCriticalSection* pcs;
274 CTryCriticalBlock(CCriticalSection& csIn) { pcs = (csIn.TryEnter() ? &csIn : NULL); }
275 ~CTryCriticalBlock() { if (pcs) pcs->Leave(); }
276 bool Entered() { return pcs != NULL; }
279 #define TRY_CRITICAL_BLOCK(cs) \
280 for (bool fcriticalblockonce=true; fcriticalblockonce; assert(("break caught by TRY_CRITICAL_BLOCK!", !fcriticalblockonce)), fcriticalblockonce=false) \
281 for (CTryCriticalBlock criticalblock(cs); fcriticalblockonce && (fcriticalblockonce = criticalblock.Entered()) && (cs.pszFile=__FILE__, cs.nLine=__LINE__, true); fcriticalblockonce=false, cs.pszFile=NULL, cs.nLine=0)
292 inline std::string i64tostr(int64 n)
294 return strprintf("%"PRI64d, n);
297 inline std::string itostr(int n)
299 return strprintf("%d", n);
302 inline int64 atoi64(const char* psz)
307 return strtoll(psz, NULL, 10);
311 inline int64 atoi64(const std::string& str)
314 return _atoi64(str.c_str());
316 return strtoll(str.c_str(), NULL, 10);
320 inline int atoi(const std::string& str)
322 return atoi(str.c_str());
325 inline int roundint(double d)
327 return (int)(d > 0 ? d + 0.5 : d - 0.5);
330 inline int64 roundint64(double d)
332 return (int64)(d > 0 ? d + 0.5 : d - 0.5);
335 inline int64 abs64(int64 n)
337 return (n >= 0 ? n : -n);
341 std::string HexStr(const T itbegin, const T itend, bool fSpaces=false)
343 if (itbegin == itend)
345 const unsigned char* pbegin = (const unsigned char*)&itbegin[0];
346 const unsigned char* pend = pbegin + (itend - itbegin) * sizeof(itbegin[0]);
348 str.reserve((pend-pbegin) * (fSpaces ? 3 : 2));
349 for (const unsigned char* p = pbegin; p != pend; p++)
350 str += strprintf((fSpaces && p != pend-1 ? "%02x " : "%02x"), *p);
354 inline std::string HexStr(const std::vector<unsigned char>& vch, bool fSpaces=false)
356 return HexStr(vch.begin(), vch.end(), fSpaces);
360 std::string HexNumStr(const T itbegin, const T itend, bool f0x=true)
362 if (itbegin == itend)
364 const unsigned char* pbegin = (const unsigned char*)&itbegin[0];
365 const unsigned char* pend = pbegin + (itend - itbegin) * sizeof(itbegin[0]);
366 std::string str = (f0x ? "0x" : "");
367 str.reserve(str.size() + (pend-pbegin) * 2);
368 for (const unsigned char* p = pend-1; p >= pbegin; p--)
369 str += strprintf("%02x", *p);
373 inline std::string HexNumStr(const std::vector<unsigned char>& vch, bool f0x=true)
375 return HexNumStr(vch.begin(), vch.end(), f0x);
379 void PrintHex(const T pbegin, const T pend, const char* pszFormat="%s", bool fSpaces=true)
381 printf(pszFormat, HexStr(pbegin, pend, fSpaces).c_str());
384 inline void PrintHex(const std::vector<unsigned char>& vch, const char* pszFormat="%s", bool fSpaces=true)
386 printf(pszFormat, HexStr(vch, fSpaces).c_str());
389 inline int64 GetPerformanceCounter()
393 QueryPerformanceCounter((LARGE_INTEGER*)&nCounter);
396 gettimeofday(&t, NULL);
397 nCounter = t.tv_sec * 1000000 + t.tv_usec;
402 inline int64 GetTimeMillis()
404 return (boost::posix_time::ptime(boost::posix_time::microsec_clock::universal_time()) -
405 boost::posix_time::ptime(boost::gregorian::date(1970,1,1))).total_milliseconds();
408 inline std::string DateTimeStrFormat(const char* pszFormat, int64 nTime)
411 struct tm* ptmTime = gmtime(&n);
413 strftime(pszTime, sizeof(pszTime), pszFormat, ptmTime);
418 void skipspaces(T& it)
424 inline bool IsSwitchChar(char c)
427 return c == '-' || c == '/';
433 inline std::string GetArg(const std::string& strArg, const std::string& strDefault)
435 if (mapArgs.count(strArg))
436 return mapArgs[strArg];
440 inline int64 GetArg(const std::string& strArg, int64 nDefault)
442 if (mapArgs.count(strArg))
443 return atoi64(mapArgs[strArg]);
447 inline bool GetBoolArg(const std::string& strArg)
449 if (mapArgs.count(strArg))
451 if (mapArgs[strArg].empty())
453 return (atoi(mapArgs[strArg]) != 0);
467 inline void heapchk()
471 //if (_heapchk() != _HEAPOK)
476 // Randomize the stack to help protect against buffer overrun exploits
477 #define IMPLEMENT_RANDOMIZE_STACK(ThreadFn) \
479 static char nLoops; \
481 nLoops = GetRand(20) + 1; \
489 #define CATCH_PRINT_EXCEPTION(pszFn) \
490 catch (std::exception& e) { \
491 PrintException(&e, (pszFn)); \
493 PrintException(NULL, (pszFn)); \
505 template<typename T1>
506 inline uint256 Hash(const T1 pbegin, const T1 pend)
508 static unsigned char pblank[1];
510 SHA256((pbegin == pend ? pblank : (unsigned char*)&pbegin[0]), (pend - pbegin) * sizeof(pbegin[0]), (unsigned char*)&hash1);
512 SHA256((unsigned char*)&hash1, sizeof(hash1), (unsigned char*)&hash2);
516 template<typename T1, typename T2>
517 inline uint256 Hash(const T1 p1begin, const T1 p1end,
518 const T2 p2begin, const T2 p2end)
520 static unsigned char pblank[1];
524 SHA256_Update(&ctx, (p1begin == p1end ? pblank : (unsigned char*)&p1begin[0]), (p1end - p1begin) * sizeof(p1begin[0]));
525 SHA256_Update(&ctx, (p2begin == p2end ? pblank : (unsigned char*)&p2begin[0]), (p2end - p2begin) * sizeof(p2begin[0]));
526 SHA256_Final((unsigned char*)&hash1, &ctx);
528 SHA256((unsigned char*)&hash1, sizeof(hash1), (unsigned char*)&hash2);
532 template<typename T1, typename T2, typename T3>
533 inline uint256 Hash(const T1 p1begin, const T1 p1end,
534 const T2 p2begin, const T2 p2end,
535 const T3 p3begin, const T3 p3end)
537 static unsigned char pblank[1];
541 SHA256_Update(&ctx, (p1begin == p1end ? pblank : (unsigned char*)&p1begin[0]), (p1end - p1begin) * sizeof(p1begin[0]));
542 SHA256_Update(&ctx, (p2begin == p2end ? pblank : (unsigned char*)&p2begin[0]), (p2end - p2begin) * sizeof(p2begin[0]));
543 SHA256_Update(&ctx, (p3begin == p3end ? pblank : (unsigned char*)&p3begin[0]), (p3end - p3begin) * sizeof(p3begin[0]));
544 SHA256_Final((unsigned char*)&hash1, &ctx);
546 SHA256((unsigned char*)&hash1, sizeof(hash1), (unsigned char*)&hash2);
551 uint256 SerializeHash(const T& obj, int nType=SER_GETHASH, int nVersion=VERSION)
553 // Most of the time is spent allocating and deallocating CDataStream's
554 // buffer. If this ever needs to be optimized further, make a CStaticStream
555 // class with its buffer on the stack.
556 CDataStream ss(nType, nVersion);
559 return Hash(ss.begin(), ss.end());
562 inline uint160 Hash160(const std::vector<unsigned char>& vch)
565 SHA256(&vch[0], vch.size(), (unsigned char*)&hash1);
567 RIPEMD160((unsigned char*)&hash1, sizeof(hash1), (unsigned char*)&hash2);
581 // Note: It turns out we might have been able to use boost::thread
582 // by using TerminateThread(boost::thread.native_handle(), 0);
584 typedef HANDLE pthread_t;
586 inline pthread_t CreateThread(void(*pfn)(void*), void* parg, bool fWantHandle=false)
591 NULL, // default security
592 0, // inherit stack size from parent
593 (LPTHREAD_START_ROUTINE)pfn, // function pointer
595 0, // creation option, start immediately
596 &nUnused); // thread identifier
599 printf("Error: CreateThread() returned %d\n", GetLastError());
604 CloseHandle(hthread);
605 return (pthread_t)-1;
610 inline void SetThreadPriority(int nPriority)
612 SetThreadPriority(GetCurrentThread(), nPriority);
615 inline pthread_t CreateThread(void(*pfn)(void*), void* parg, bool fWantHandle=false)
617 pthread_t hthread = 0;
618 int ret = pthread_create(&hthread, NULL, (void*(*)(void*))pfn, parg);
621 printf("Error: pthread_create() returned %d\n", ret);
625 return (pthread_t)-1;
629 #define THREAD_PRIORITY_LOWEST PRIO_MAX
630 #define THREAD_PRIORITY_BELOW_NORMAL 2
631 #define THREAD_PRIORITY_NORMAL 0
632 #define THREAD_PRIORITY_ABOVE_NORMAL 0
634 inline void SetThreadPriority(int nPriority)
636 // It's unclear if it's even possible to change thread priorities on Linux,
637 // but we really and truly need it for the generation threads.
639 setpriority(PRIO_THREAD, 0, nPriority);
641 setpriority(PRIO_PROCESS, 0, nPriority);
645 inline bool TerminateThread(pthread_t hthread, unsigned int nExitCode)
647 return (pthread_cancel(hthread) == 0);
650 inline void ExitThread(unsigned int nExitCode)
652 pthread_exit((void*)nExitCode);
660 inline bool AffinityBugWorkaround(void(*pfn)(void*))
663 // Sometimes after a few hours affinity gets stuck on one processor
664 DWORD dwProcessAffinityMask = -1;
665 DWORD dwSystemAffinityMask = -1;
666 GetProcessAffinityMask(GetCurrentProcess(), &dwProcessAffinityMask, &dwSystemAffinityMask);
667 DWORD dwPrev1 = SetThreadAffinityMask(GetCurrentThread(), dwProcessAffinityMask);
668 DWORD dwPrev2 = SetThreadAffinityMask(GetCurrentThread(), dwProcessAffinityMask);
669 if (dwPrev2 != dwProcessAffinityMask)
671 printf("AffinityBugWorkaround() : SetThreadAffinityMask=%d, ProcessAffinityMask=%d, restarting thread\n", dwPrev2, dwProcessAffinityMask);
672 if (!CreateThread(pfn, NULL))
673 printf("Error: CreateThread() failed\n");