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 WSAEINVAL EINVAL
109 #define WSAEALREADY EALREADY
110 #define WSAEWOULDBLOCK EWOULDBLOCK
111 #define WSAEMSGSIZE EMSGSIZE
112 #define WSAEINTR EINTR
113 #define WSAEINPROGRESS EINPROGRESS
114 #define WSAEADDRINUSE EADDRINUSE
115 #define WSAENOTSOCK EBADF
116 #define INVALID_SOCKET (SOCKET)(~0)
117 #define SOCKET_ERROR -1
118 typedef u_int SOCKET;
119 #define _vsnprintf(a,b,c,d) vsnprintf(a,b,c,d)
120 #define strlwr(psz) to_lower(psz)
121 #define _strlwr(psz) to_lower(psz)
122 #define MAX_PATH 1024
123 #define Beep(n1,n2) (0)
124 inline void Sleep(int64 n)
126 boost::thread::sleep(boost::get_system_time() + boost::posix_time::milliseconds(n));
130 inline int myclosesocket(SOCKET& hSocket)
132 if (hSocket == INVALID_SOCKET)
135 int ret = closesocket(hSocket);
137 int ret = close(hSocket);
139 hSocket = INVALID_SOCKET;
142 #define closesocket(s) myclosesocket(s)
145 inline const char* _(const char* psz)
160 extern std::map<std::string, std::string> mapArgs;
161 extern std::map<std::string, std::vector<std::string> > mapMultiArgs;
163 extern bool fPrintToConsole;
164 extern bool fPrintToDebugger;
165 extern char pszSetDataDir[MAX_PATH];
166 extern bool fRequestShutdown;
167 extern bool fShutdown;
170 extern bool fCommandLine;
171 extern std::string strMiscWarning;
172 extern bool fTestNet;
173 extern bool fNoListen;
174 extern bool fLogTimestamps;
177 void RandAddSeedPerfmon();
178 int OutputDebugStringF(const char* pszFormat, ...);
179 int my_snprintf(char* buffer, size_t limit, const char* format, ...);
180 std::string strprintf(const char* format, ...);
181 bool error(const char* format, ...);
182 void LogException(std::exception* pex, const char* pszThread);
183 void PrintException(std::exception* pex, const char* pszThread);
184 void PrintExceptionContinue(std::exception* pex, const char* pszThread);
185 void ParseString(const std::string& str, char c, std::vector<std::string>& v);
186 std::string FormatMoney(int64 n, bool fPlus=false);
187 bool ParseMoney(const std::string& str, int64& nRet);
188 bool ParseMoney(const char* pszIn, int64& nRet);
189 std::vector<unsigned char> ParseHex(const char* psz);
190 std::vector<unsigned char> ParseHex(const std::string& str);
191 void ParseParameters(int argc, char* argv[]);
192 const char* wxGetTranslation(const char* psz);
193 bool WildcardMatch(const char* psz, const char* mask);
194 bool WildcardMatch(const std::string& str, const std::string& mask);
195 int GetFilesize(FILE* file);
196 void GetDataDir(char* pszDirRet);
197 std::string GetConfigFile();
198 std::string GetPidFile();
199 void CreatePidFile(std::string pidFile, pid_t pid);
200 void ReadConfigFile(std::map<std::string, std::string>& mapSettingsRet, std::map<std::string, std::vector<std::string> >& mapMultiSettingsRet);
202 std::string MyGetSpecialFolderPath(int nFolder, bool fCreate);
204 std::string GetDefaultDataDir();
205 std::string GetDataDir();
206 void ShrinkDebugFile();
207 int GetRandInt(int nMax);
208 uint64 GetRand(uint64 nMax);
210 int64 GetAdjustedTime();
211 void AddTimeData(unsigned int ip, int64 nTime);
212 std::string FormatFullVersion();
226 // Wrapper to automatically initialize critical sections
227 class CCriticalSection
233 explicit CCriticalSection() { InitializeCriticalSection(&cs); }
234 ~CCriticalSection() { DeleteCriticalSection(&cs); }
235 void Enter() { EnterCriticalSection(&cs); }
236 void Leave() { LeaveCriticalSection(&cs); }
237 bool TryEnter() { return TryEnterCriticalSection(&cs); }
240 boost::interprocess::interprocess_recursive_mutex mutex;
242 explicit CCriticalSection() { }
243 ~CCriticalSection() { }
244 void Enter() { mutex.lock(); }
245 void Leave() { mutex.unlock(); }
246 bool TryEnter() { return mutex.try_lock(); }
253 // Automatically leave critical section when leaving block, needed for exception safety
257 CCriticalSection* pcs;
259 CCriticalBlock(CCriticalSection& csIn) { pcs = &csIn; pcs->Enter(); }
260 ~CCriticalBlock() { pcs->Leave(); }
263 // WARNING: This will catch continue and break!
264 // break is caught with an assertion, but there's no way to detect continue.
265 // I'd rather be careful than suffer the other more error prone syntax.
266 // The compiler will optimise away all this loop junk.
267 #define CRITICAL_BLOCK(cs) \
268 for (bool fcriticalblockonce=true; fcriticalblockonce; assert(("break caught by CRITICAL_BLOCK!", !fcriticalblockonce)), fcriticalblockonce=false) \
269 for (CCriticalBlock criticalblock(cs); fcriticalblockonce && (cs.pszFile=__FILE__, cs.nLine=__LINE__, true); fcriticalblockonce=false, cs.pszFile=NULL, cs.nLine=0)
271 class CTryCriticalBlock
274 CCriticalSection* pcs;
276 CTryCriticalBlock(CCriticalSection& csIn) { pcs = (csIn.TryEnter() ? &csIn : NULL); }
277 ~CTryCriticalBlock() { if (pcs) pcs->Leave(); }
278 bool Entered() { return pcs != NULL; }
281 #define TRY_CRITICAL_BLOCK(cs) \
282 for (bool fcriticalblockonce=true; fcriticalblockonce; assert(("break caught by TRY_CRITICAL_BLOCK!", !fcriticalblockonce)), fcriticalblockonce=false) \
283 for (CTryCriticalBlock criticalblock(cs); fcriticalblockonce && (fcriticalblockonce = criticalblock.Entered()) && (cs.pszFile=__FILE__, cs.nLine=__LINE__, true); fcriticalblockonce=false, cs.pszFile=NULL, cs.nLine=0)
294 inline std::string i64tostr(int64 n)
296 return strprintf("%"PRI64d, n);
299 inline std::string itostr(int n)
301 return strprintf("%d", n);
304 inline int64 atoi64(const char* psz)
309 return strtoll(psz, NULL, 10);
313 inline int64 atoi64(const std::string& str)
316 return _atoi64(str.c_str());
318 return strtoll(str.c_str(), NULL, 10);
322 inline int atoi(const std::string& str)
324 return atoi(str.c_str());
327 inline int roundint(double d)
329 return (int)(d > 0 ? d + 0.5 : d - 0.5);
332 inline int64 roundint64(double d)
334 return (int64)(d > 0 ? d + 0.5 : d - 0.5);
337 inline int64 abs64(int64 n)
339 return (n >= 0 ? n : -n);
343 std::string HexStr(const T itbegin, const T itend, bool fSpaces=false)
345 if (itbegin == itend)
347 const unsigned char* pbegin = (const unsigned char*)&itbegin[0];
348 const unsigned char* pend = pbegin + (itend - itbegin) * sizeof(itbegin[0]);
350 str.reserve((pend-pbegin) * (fSpaces ? 3 : 2));
351 for (const unsigned char* p = pbegin; p != pend; p++)
352 str += strprintf((fSpaces && p != pend-1 ? "%02x " : "%02x"), *p);
356 inline std::string HexStr(const std::vector<unsigned char>& vch, bool fSpaces=false)
358 return HexStr(vch.begin(), vch.end(), fSpaces);
362 std::string HexNumStr(const T itbegin, const T itend, bool f0x=true)
364 if (itbegin == itend)
366 const unsigned char* pbegin = (const unsigned char*)&itbegin[0];
367 const unsigned char* pend = pbegin + (itend - itbegin) * sizeof(itbegin[0]);
368 std::string str = (f0x ? "0x" : "");
369 str.reserve(str.size() + (pend-pbegin) * 2);
370 for (const unsigned char* p = pend-1; p >= pbegin; p--)
371 str += strprintf("%02x", *p);
375 inline std::string HexNumStr(const std::vector<unsigned char>& vch, bool f0x=true)
377 return HexNumStr(vch.begin(), vch.end(), f0x);
381 void PrintHex(const T pbegin, const T pend, const char* pszFormat="%s", bool fSpaces=true)
383 printf(pszFormat, HexStr(pbegin, pend, fSpaces).c_str());
386 inline void PrintHex(const std::vector<unsigned char>& vch, const char* pszFormat="%s", bool fSpaces=true)
388 printf(pszFormat, HexStr(vch, fSpaces).c_str());
391 inline int64 GetPerformanceCounter()
395 QueryPerformanceCounter((LARGE_INTEGER*)&nCounter);
398 gettimeofday(&t, NULL);
399 nCounter = t.tv_sec * 1000000 + t.tv_usec;
404 inline int64 GetTimeMillis()
406 return (boost::posix_time::ptime(boost::posix_time::microsec_clock::universal_time()) -
407 boost::posix_time::ptime(boost::gregorian::date(1970,1,1))).total_milliseconds();
410 inline std::string DateTimeStrFormat(const char* pszFormat, int64 nTime)
413 struct tm* ptmTime = gmtime(&n);
415 strftime(pszTime, sizeof(pszTime), pszFormat, ptmTime);
420 void skipspaces(T& it)
426 inline bool IsSwitchChar(char c)
429 return c == '-' || c == '/';
435 inline std::string GetArg(const std::string& strArg, const std::string& strDefault)
437 if (mapArgs.count(strArg))
438 return mapArgs[strArg];
442 inline int64 GetArg(const std::string& strArg, int64 nDefault)
444 if (mapArgs.count(strArg))
445 return atoi64(mapArgs[strArg]);
449 inline bool GetBoolArg(const std::string& strArg)
451 if (mapArgs.count(strArg))
453 if (mapArgs[strArg].empty())
455 return (atoi(mapArgs[strArg]) != 0);
469 inline void heapchk()
473 //if (_heapchk() != _HEAPOK)
478 // Randomize the stack to help protect against buffer overrun exploits
479 #define IMPLEMENT_RANDOMIZE_STACK(ThreadFn) \
481 static char nLoops; \
483 nLoops = GetRand(20) + 1; \
491 #define CATCH_PRINT_EXCEPTION(pszFn) \
492 catch (std::exception& e) { \
493 PrintException(&e, (pszFn)); \
495 PrintException(NULL, (pszFn)); \
507 template<typename T1>
508 inline uint256 Hash(const T1 pbegin, const T1 pend)
510 static unsigned char pblank[1];
512 SHA256((pbegin == pend ? pblank : (unsigned char*)&pbegin[0]), (pend - pbegin) * sizeof(pbegin[0]), (unsigned char*)&hash1);
514 SHA256((unsigned char*)&hash1, sizeof(hash1), (unsigned char*)&hash2);
518 template<typename T1, typename T2>
519 inline uint256 Hash(const T1 p1begin, const T1 p1end,
520 const T2 p2begin, const T2 p2end)
522 static unsigned char pblank[1];
526 SHA256_Update(&ctx, (p1begin == p1end ? pblank : (unsigned char*)&p1begin[0]), (p1end - p1begin) * sizeof(p1begin[0]));
527 SHA256_Update(&ctx, (p2begin == p2end ? pblank : (unsigned char*)&p2begin[0]), (p2end - p2begin) * sizeof(p2begin[0]));
528 SHA256_Final((unsigned char*)&hash1, &ctx);
530 SHA256((unsigned char*)&hash1, sizeof(hash1), (unsigned char*)&hash2);
534 template<typename T1, typename T2, typename T3>
535 inline uint256 Hash(const T1 p1begin, const T1 p1end,
536 const T2 p2begin, const T2 p2end,
537 const T3 p3begin, const T3 p3end)
539 static unsigned char pblank[1];
543 SHA256_Update(&ctx, (p1begin == p1end ? pblank : (unsigned char*)&p1begin[0]), (p1end - p1begin) * sizeof(p1begin[0]));
544 SHA256_Update(&ctx, (p2begin == p2end ? pblank : (unsigned char*)&p2begin[0]), (p2end - p2begin) * sizeof(p2begin[0]));
545 SHA256_Update(&ctx, (p3begin == p3end ? pblank : (unsigned char*)&p3begin[0]), (p3end - p3begin) * sizeof(p3begin[0]));
546 SHA256_Final((unsigned char*)&hash1, &ctx);
548 SHA256((unsigned char*)&hash1, sizeof(hash1), (unsigned char*)&hash2);
553 uint256 SerializeHash(const T& obj, int nType=SER_GETHASH, int nVersion=VERSION)
555 // Most of the time is spent allocating and deallocating CDataStream's
556 // buffer. If this ever needs to be optimized further, make a CStaticStream
557 // class with its buffer on the stack.
558 CDataStream ss(nType, nVersion);
561 return Hash(ss.begin(), ss.end());
564 inline uint160 Hash160(const std::vector<unsigned char>& vch)
567 SHA256(&vch[0], vch.size(), (unsigned char*)&hash1);
569 RIPEMD160((unsigned char*)&hash1, sizeof(hash1), (unsigned char*)&hash2);
583 // Note: It turns out we might have been able to use boost::thread
584 // by using TerminateThread(boost::thread.native_handle(), 0);
586 typedef HANDLE pthread_t;
588 inline pthread_t CreateThread(void(*pfn)(void*), void* parg, bool fWantHandle=false)
593 NULL, // default security
594 0, // inherit stack size from parent
595 (LPTHREAD_START_ROUTINE)pfn, // function pointer
597 0, // creation option, start immediately
598 &nUnused); // thread identifier
601 printf("Error: CreateThread() returned %d\n", GetLastError());
606 CloseHandle(hthread);
607 return (pthread_t)-1;
612 inline void SetThreadPriority(int nPriority)
614 SetThreadPriority(GetCurrentThread(), nPriority);
617 inline pthread_t CreateThread(void(*pfn)(void*), void* parg, bool fWantHandle=false)
619 pthread_t hthread = 0;
620 int ret = pthread_create(&hthread, NULL, (void*(*)(void*))pfn, parg);
623 printf("Error: pthread_create() returned %d\n", ret);
627 return (pthread_t)-1;
631 #define THREAD_PRIORITY_LOWEST PRIO_MAX
632 #define THREAD_PRIORITY_BELOW_NORMAL 2
633 #define THREAD_PRIORITY_NORMAL 0
634 #define THREAD_PRIORITY_ABOVE_NORMAL 0
636 inline void SetThreadPriority(int nPriority)
638 // It's unclear if it's even possible to change thread priorities on Linux,
639 // but we really and truly need it for the generation threads.
641 setpriority(PRIO_THREAD, 0, nPriority);
643 setpriority(PRIO_PROCESS, 0, nPriority);
647 inline bool TerminateThread(pthread_t hthread, unsigned int nExitCode)
649 return (pthread_cancel(hthread) == 0);
652 inline void ExitThread(unsigned int nExitCode)
654 pthread_exit((void*)nExitCode);
662 inline bool AffinityBugWorkaround(void(*pfn)(void*))
665 // Sometimes after a few hours affinity gets stuck on one processor
666 DWORD dwProcessAffinityMask = -1;
667 DWORD dwSystemAffinityMask = -1;
668 GetProcessAffinityMask(GetCurrentProcess(), &dwProcessAffinityMask, &dwSystemAffinityMask);
669 DWORD dwPrev1 = SetThreadAffinityMask(GetCurrentThread(), dwProcessAffinityMask);
670 DWORD dwPrev2 = SetThreadAffinityMask(GetCurrentThread(), dwProcessAffinityMask);
671 if (dwPrev2 != dwProcessAffinityMask)
673 printf("AffinityBugWorkaround() : SetThreadAffinityMask=%d, ProcessAffinityMask=%d, restarting thread\n", dwPrev2, dwProcessAffinityMask);
674 if (!CreateThread(pfn, NULL))
675 printf("Error: CreateThread() failed\n");