1 // Copyright (c) 2009-2010 Satoshi Nakamoto
2 // Copyright (c) 2011 The Bitcoin developers
3 // Distributed under the MIT/X11 software license, see the accompanying
4 // file license.txt or http://www.opensource.org/licenses/mit-license.php.
7 #include <boost/algorithm/string/join.hpp>
8 #include <boost/program_options/detail/config_file.hpp>
9 #include <boost/program_options/parsers.hpp>
10 #include <boost/filesystem.hpp>
11 #include <boost/filesystem/fstream.hpp>
12 #include <boost/interprocess/sync/interprocess_mutex.hpp>
13 #include <boost/interprocess/sync/interprocess_recursive_mutex.hpp>
14 #include <boost/foreach.hpp>
17 using namespace boost;
19 map<string, string> mapArgs;
20 map<string, vector<string> > mapMultiArgs;
22 bool fPrintToConsole = false;
23 bool fPrintToDebugger = false;
24 char pszSetDataDir[MAX_PATH] = "";
25 bool fRequestShutdown = false;
26 bool fShutdown = false;
29 bool fCommandLine = false;
30 string strMiscWarning;
31 bool fTestNet = false;
32 bool fNoListen = false;
33 bool fLogTimestamps = false;
34 CMedianFilter<int64> vTimeOffsets(200,0);
38 // Workaround for "multiple definition of `_tls_used'"
39 // http://svn.boost.org/trac/boost/ticket/4258
40 extern "C" void tss_cleanup_implemented() { }
46 // Init openssl library multithreading support
47 static boost::interprocess::interprocess_mutex** ppmutexOpenSSL;
48 void locking_callback(int mode, int i, const char* file, int line)
50 if (mode & CRYPTO_LOCK)
51 ppmutexOpenSSL[i]->lock();
53 ppmutexOpenSSL[i]->unlock();
62 // Init openssl library multithreading support
63 ppmutexOpenSSL = (boost::interprocess::interprocess_mutex**)OPENSSL_malloc(CRYPTO_num_locks() * sizeof(boost::interprocess::interprocess_mutex*));
64 for (int i = 0; i < CRYPTO_num_locks(); i++)
65 ppmutexOpenSSL[i] = new boost::interprocess::interprocess_mutex();
66 CRYPTO_set_locking_callback(locking_callback);
69 // Seed random number generator with screen scrape and other hardware sources
73 // Seed random number generator with performance counter
78 // Shutdown openssl library multithreading support
79 CRYPTO_set_locking_callback(NULL);
80 for (int i = 0; i < CRYPTO_num_locks(); i++)
81 delete ppmutexOpenSSL[i];
82 OPENSSL_free(ppmutexOpenSSL);
96 // Seed with CPU performance counter
97 int64 nCounter = GetPerformanceCounter();
98 RAND_add(&nCounter, sizeof(nCounter), 1.5);
99 memset(&nCounter, 0, sizeof(nCounter));
102 void RandAddSeedPerfmon()
106 // This can take up to 2 seconds, so only do it every 10 minutes
107 static int64 nLastPerfmon;
108 if (GetTime() < nLastPerfmon + 10 * 60)
110 nLastPerfmon = GetTime();
113 // Don't need this on Linux, OpenSSL automatically uses /dev/urandom
114 // Seed with the entire set of perfmon data
115 unsigned char pdata[250000];
116 memset(pdata, 0, sizeof(pdata));
117 unsigned long nSize = sizeof(pdata);
118 long ret = RegQueryValueExA(HKEY_PERFORMANCE_DATA, "Global", NULL, NULL, pdata, &nSize);
119 RegCloseKey(HKEY_PERFORMANCE_DATA);
120 if (ret == ERROR_SUCCESS)
122 RAND_add(pdata, nSize, nSize/100.0);
123 memset(pdata, 0, nSize);
124 printf("%s RandAddSeed() %d bytes\n", DateTimeStrFormat("%x %H:%M", GetTime()).c_str(), nSize);
129 uint64 GetRand(uint64 nMax)
134 // The range of the random source must be a multiple of the modulus
135 // to give every possible output value an equal possibility
136 uint64 nRange = (std::numeric_limits<uint64>::max() / nMax) * nMax;
139 RAND_bytes((unsigned char*)&nRand, sizeof(nRand));
140 while (nRand >= nRange);
141 return (nRand % nMax);
144 int GetRandInt(int nMax)
146 return GetRand(nMax);
159 inline int OutputDebugStringF(const char* pszFormat, ...)
166 va_start(arg_ptr, pszFormat);
167 ret = vprintf(pszFormat, arg_ptr);
172 // print to debug.log
173 static FILE* fileout = NULL;
177 char pszFile[MAX_PATH+100];
179 strlcat(pszFile, "/debug.log", sizeof(pszFile));
180 fileout = fopen(pszFile, "a");
181 if (fileout) setbuf(fileout, NULL); // unbuffered
185 static bool fStartedNewLine = true;
187 // Debug print useful for profiling
188 if (fLogTimestamps && fStartedNewLine)
189 fprintf(fileout, "%s ", DateTimeStrFormat("%x %H:%M:%S", GetTime()).c_str());
190 if (pszFormat[strlen(pszFormat) - 1] == '\n')
191 fStartedNewLine = true;
193 fStartedNewLine = false;
196 va_start(arg_ptr, pszFormat);
197 ret = vfprintf(fileout, pszFormat, arg_ptr);
203 if (fPrintToDebugger)
205 static CCriticalSection cs_OutputDebugStringF;
207 // accumulate a line at a time
208 CRITICAL_BLOCK(cs_OutputDebugStringF)
210 static char pszBuffer[50000];
215 va_start(arg_ptr, pszFormat);
216 int limit = END(pszBuffer) - pend - 2;
217 int ret = _vsnprintf(pend, limit, pszFormat, arg_ptr);
219 if (ret < 0 || ret >= limit)
221 pend = END(pszBuffer) - 2;
227 char* p1 = pszBuffer;
229 while (p2 = strchr(p1, '\n'))
234 OutputDebugStringA(p1);
239 memmove(pszBuffer, p1, pend - p1 + 1);
240 pend -= (p1 - pszBuffer);
249 // - prints up to limit-1 characters
250 // - output string is always null terminated even if limit reached
251 // - return value is the number of characters actually printed
252 int my_snprintf(char* buffer, size_t limit, const char* format, ...)
257 va_start(arg_ptr, format);
258 int ret = _vsnprintf(buffer, limit, format, arg_ptr);
260 if (ret < 0 || ret >= limit)
268 string strprintf(const std::string &format, ...)
272 int limit = sizeof(buffer);
277 va_start(arg_ptr, format);
278 ret = _vsnprintf(p, limit, format.c_str(), arg_ptr);
280 if (ret >= 0 && ret < limit)
287 throw std::bad_alloc();
289 string str(p, p+ret);
295 bool error(const std::string &format, ...)
298 int limit = sizeof(buffer);
300 va_start(arg_ptr, format);
301 int ret = _vsnprintf(buffer, limit, format.c_str(), arg_ptr);
303 if (ret < 0 || ret >= limit)
308 printf("ERROR: %s\n", buffer);
313 void ParseString(const string& str, char c, vector<string>& v)
317 string::size_type i1 = 0;
318 string::size_type i2;
321 i2 = str.find(c, i1);
324 v.push_back(str.substr(i1));
327 v.push_back(str.substr(i1, i2-i1));
333 string FormatMoney(int64 n, bool fPlus)
335 // Note: not using straight sprintf here because we do NOT want
336 // localized number formatting.
337 int64 n_abs = (n > 0 ? n : -n);
338 int64 quotient = n_abs/COIN;
339 int64 remainder = n_abs%COIN;
340 string str = strprintf("%"PRI64d".%08"PRI64d, quotient, remainder);
342 // Right-trim excess 0's before the decimal point:
344 for (int i = str.size()-1; (str[i] == '0' && isdigit(str[i-2])); --i)
347 str.erase(str.size()-nTrim, nTrim);
350 str.insert((unsigned int)0, 1, '-');
351 else if (fPlus && n > 0)
352 str.insert((unsigned int)0, 1, '+');
357 bool ParseMoney(const string& str, int64& nRet)
359 return ParseMoney(str.c_str(), nRet);
362 bool ParseMoney(const char* pszIn, int64& nRet)
366 const char* p = pszIn;
374 int64 nMult = CENT*10;
375 while (isdigit(*p) && (nMult > 0))
377 nUnits += nMult * (*p++ - '0');
386 strWhole.insert(strWhole.end(), *p);
391 if (strWhole.size() > 10) // guard against 63 bit overflow
393 if (nUnits < 0 || nUnits > COIN)
395 int64 nWhole = atoi64(strWhole);
396 int64 nValue = nWhole*COIN + nUnits;
403 vector<unsigned char> ParseHex(const char* psz)
405 static char phexdigit[256] =
406 { -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
407 -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
408 -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
409 0,1,2,3,4,5,6,7,8,9,-1,-1,-1,-1,-1,-1,
410 -1,0xa,0xb,0xc,0xd,0xe,0xf,-1,-1,-1,-1,-1,-1,-1,-1,-1,
411 -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
412 -1,0xa,0xb,0xc,0xd,0xe,0xf,-1,-1,-1,-1,-1,-1,-1,-1,-1
413 -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
414 -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
415 -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
416 -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
417 -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
418 -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
419 -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
420 -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
421 -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, };
423 // convert hex dump to vector
424 vector<unsigned char> vch;
427 while (isspace(*psz))
429 char c = phexdigit[(unsigned char)*psz++];
432 unsigned char n = (c << 4);
433 c = phexdigit[(unsigned char)*psz++];
442 vector<unsigned char> ParseHex(const string& str)
444 return ParseHex(str.c_str());
447 void ParseParameters(int argc, char* argv[])
450 mapMultiArgs.clear();
451 for (int i = 1; i < argc; i++)
454 strlcpy(psz, argv[i], sizeof(psz));
455 char* pszValue = (char*)"";
456 if (strchr(psz, '='))
458 pszValue = strchr(psz, '=');
468 mapArgs[psz] = pszValue;
469 mapMultiArgs[psz].push_back(pszValue);
473 string EncodeBase64(const unsigned char* pch, size_t len)
475 static const char *pbase64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
478 strRet.reserve((len+2)/3*4);
481 const unsigned char *pchEnd = pch+len;
488 case 0: // we have no bits
489 strRet += pbase64[enc >> 2];
490 left = (enc & 3) << 4;
494 case 1: // we have two bits
495 strRet += pbase64[left | (enc >> 4)];
496 left = (enc & 15) << 2;
500 case 2: // we have four bits
501 strRet += pbase64[left | (enc >> 6)];
502 strRet += pbase64[enc & 63];
510 strRet += pbase64[left];
519 string EncodeBase64(const string& str)
521 return EncodeBase64((const unsigned char*)str.c_str(), str.size());
524 vector<unsigned char> DecodeBase64(const char* p, bool* pfInvalid)
526 static const int decode64_table[256] =
528 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
529 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
530 -1, -1, -1, 62, -1, -1, -1, 63, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1,
531 -1, -1, -1, -1, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
532 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1, -1, 26, 27, 28,
533 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48,
534 49, 50, 51, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
535 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
536 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
537 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
538 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
539 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
540 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
546 vector<unsigned char> vchRet;
547 vchRet.reserve(strlen(p)*3/4);
554 int dec = decode64_table[*p];
555 if (dec == -1) break;
559 case 0: // we have no bits and get 6
564 case 1: // we have 6 bits and keep 4
565 vchRet.push_back((left<<2) | (dec>>4));
570 case 2: // we have 4 bits and get 6, we keep 2
571 vchRet.push_back((left<<4) | (dec>>2));
576 case 3: // we have 2 bits and get 6
577 vchRet.push_back((left<<6) | dec);
586 case 0: // 4n base64 characters processed: ok
589 case 1: // 4n+1 base64 character processed: impossible
593 case 2: // 4n+2 base64 characters processed: require '=='
594 if (left || p[0] != '=' || p[1] != '=' || decode64_table[p[2]] != -1)
598 case 3: // 4n+3 base64 characters processed: require '='
599 if (left || p[0] != '=' || decode64_table[p[1]] != -1)
607 string DecodeBase64(const string& str)
609 vector<unsigned char> vchRet = DecodeBase64(str.c_str());
610 return string((const char*)&vchRet[0], vchRet.size());
614 bool WildcardMatch(const char* psz, const char* mask)
621 return (*psz == '\0');
623 return WildcardMatch(psz, mask+1) || (*psz && WildcardMatch(psz+1, mask));
638 bool WildcardMatch(const string& str, const string& mask)
640 return WildcardMatch(str.c_str(), mask.c_str());
650 void FormatException(char* pszMessage, std::exception* pex, const char* pszThread)
653 char pszModule[MAX_PATH];
655 GetModuleFileNameA(NULL, pszModule, sizeof(pszModule));
657 const char* pszModule = "bitcoin";
660 snprintf(pszMessage, 1000,
661 "EXCEPTION: %s \n%s \n%s in %s \n", typeid(*pex).name(), pex->what(), pszModule, pszThread);
663 snprintf(pszMessage, 1000,
664 "UNKNOWN EXCEPTION \n%s in %s \n", pszModule, pszThread);
667 void LogException(std::exception* pex, const char* pszThread)
669 char pszMessage[10000];
670 FormatException(pszMessage, pex, pszThread);
671 printf("\n%s", pszMessage);
674 void PrintException(std::exception* pex, const char* pszThread)
676 char pszMessage[10000];
677 FormatException(pszMessage, pex, pszThread);
678 printf("\n\n************************\n%s\n", pszMessage);
679 fprintf(stderr, "\n\n************************\n%s\n", pszMessage);
680 strMiscWarning = pszMessage;
684 void ThreadOneMessageBox(string strMessage)
686 // Skip message boxes if one is already open
687 static bool fMessageBoxOpen;
690 fMessageBoxOpen = true;
691 ThreadSafeMessageBox(strMessage, "Bitcoin", wxOK | wxICON_EXCLAMATION);
692 fMessageBoxOpen = false;
695 void PrintExceptionContinue(std::exception* pex, const char* pszThread)
697 char pszMessage[10000];
698 FormatException(pszMessage, pex, pszThread);
699 printf("\n\n************************\n%s\n", pszMessage);
700 fprintf(stderr, "\n\n************************\n%s\n", pszMessage);
701 strMiscWarning = pszMessage;
712 typedef WINSHELLAPI BOOL (WINAPI *PSHGETSPECIALFOLDERPATHA)(HWND hwndOwner, LPSTR lpszPath, int nFolder, BOOL fCreate);
714 string MyGetSpecialFolderPath(int nFolder, bool fCreate)
716 char pszPath[MAX_PATH+100] = "";
718 // SHGetSpecialFolderPath isn't always available on old Windows versions
719 HMODULE hShell32 = LoadLibraryA("shell32.dll");
722 PSHGETSPECIALFOLDERPATHA pSHGetSpecialFolderPath =
723 (PSHGETSPECIALFOLDERPATHA)GetProcAddress(hShell32, "SHGetSpecialFolderPathA");
724 if (pSHGetSpecialFolderPath)
725 (*pSHGetSpecialFolderPath)(NULL, pszPath, nFolder, fCreate);
726 FreeModule(hShell32);
730 if (pszPath[0] == '\0')
732 if (nFolder == CSIDL_STARTUP)
734 strcpy(pszPath, getenv("USERPROFILE"));
735 strcat(pszPath, "\\Start Menu\\Programs\\Startup");
737 else if (nFolder == CSIDL_APPDATA)
739 strcpy(pszPath, getenv("APPDATA"));
747 string GetDefaultDataDir()
749 // Windows: C:\Documents and Settings\username\Application Data\Bitcoin
750 // Mac: ~/Library/Application Support/Bitcoin
754 return MyGetSpecialFolderPath(CSIDL_APPDATA, true) + "\\Bitcoin";
756 char* pszHome = getenv("HOME");
757 if (pszHome == NULL || strlen(pszHome) == 0)
758 pszHome = (char*)"/";
759 string strHome = pszHome;
760 if (strHome[strHome.size()-1] != '/')
764 strHome += "Library/Application Support/";
765 filesystem::create_directory(strHome.c_str());
766 return strHome + "Bitcoin";
769 return strHome + ".bitcoin";
774 void GetDataDir(char* pszDir)
776 // pszDir must be at least MAX_PATH length.
778 if (pszSetDataDir[0] != 0)
780 strlcpy(pszDir, pszSetDataDir, MAX_PATH);
785 // This can be called during exceptions by printf, so we cache the
786 // value so we don't have to do memory allocations after that.
787 static char pszCachedDir[MAX_PATH];
788 if (pszCachedDir[0] == 0)
789 strlcpy(pszCachedDir, GetDefaultDataDir().c_str(), sizeof(pszCachedDir));
790 strlcpy(pszDir, pszCachedDir, MAX_PATH);
795 char* p = pszDir + strlen(pszDir);
796 if (p > pszDir && p[-1] != '/' && p[-1] != '\\')
798 strcpy(p, "testnet");
801 static bool pfMkdir[4];
802 if (!pfMkdir[nVariation])
804 pfMkdir[nVariation] = true;
805 boost::filesystem::create_directory(pszDir);
811 char pszDir[MAX_PATH];
816 string GetConfigFile()
818 namespace fs = boost::filesystem;
819 fs::path pathConfig(GetArg("-conf", "bitcoin.conf"));
820 if (!pathConfig.is_complete())
821 pathConfig = fs::path(GetDataDir()) / pathConfig;
822 return pathConfig.string();
825 void ReadConfigFile(map<string, string>& mapSettingsRet,
826 map<string, vector<string> >& mapMultiSettingsRet)
828 namespace fs = boost::filesystem;
829 namespace pod = boost::program_options::detail;
831 fs::ifstream streamConfig(GetConfigFile());
832 if (!streamConfig.good())
835 set<string> setOptions;
836 setOptions.insert("*");
838 for (pod::config_file_iterator it(streamConfig, setOptions), end; it != end; ++it)
840 // Don't overwrite existing settings so command line settings override bitcoin.conf
841 string strKey = string("-") + it->string_key;
842 if (mapSettingsRet.count(strKey) == 0)
843 mapSettingsRet[strKey] = it->value[0];
844 mapMultiSettingsRet[strKey].push_back(it->value[0]);
850 namespace fs = boost::filesystem;
851 fs::path pathConfig(GetArg("-pid", "bitcoind.pid"));
852 if (!pathConfig.is_complete())
853 pathConfig = fs::path(GetDataDir()) / pathConfig;
854 return pathConfig.string();
857 void CreatePidFile(string pidFile, pid_t pid)
859 FILE* file = fopen(pidFile.c_str(), "w");
862 fprintf(file, "%d\n", pid);
867 int GetFilesize(FILE* file)
869 int nSavePos = ftell(file);
871 if (fseek(file, 0, SEEK_END) == 0)
872 nFilesize = ftell(file);
873 fseek(file, nSavePos, SEEK_SET);
877 void ShrinkDebugFile()
879 // Scroll debug.log if it's getting too big
880 string strFile = GetDataDir() + "/debug.log";
881 FILE* file = fopen(strFile.c_str(), "r");
882 if (file && GetFilesize(file) > 10 * 1000000)
884 // Restart the file with some of the end
886 fseek(file, -sizeof(pch), SEEK_END);
887 int nBytes = fread(pch, 1, sizeof(pch), file);
890 file = fopen(strFile.c_str(), "w");
893 fwrite(pch, 1, nBytes, file);
907 // "Never go to sea with two chronometers; take one or three."
908 // Our three time sources are:
910 // - Median of other nodes's clocks
911 // - The user (asking the user to fix the system clock if the first two disagree)
913 static int64 nMockTime = 0; // For unit testing
917 if (nMockTime) return nMockTime;
922 void SetMockTime(int64 nMockTimeIn)
924 nMockTime = nMockTimeIn;
927 static int64 nTimeOffset = 0;
929 int64 GetAdjustedTime()
931 return GetTime() + nTimeOffset;
934 void AddTimeData(unsigned int ip, int64 nTime)
936 int64 nOffsetSample = nTime - GetTime();
939 static set<unsigned int> setKnown;
940 if (!setKnown.insert(ip).second)
944 vTimeOffsets.input(nOffsetSample);
945 printf("Added time data, samples %d, offset %+"PRI64d" (%+"PRI64d" minutes)\n", vTimeOffsets.size(), nOffsetSample, nOffsetSample/60);
946 if (vTimeOffsets.size() >= 5 && vTimeOffsets.size() % 2 == 1)
948 int64 nMedian = vTimeOffsets.median();
949 std::vector<int64> vSorted = vTimeOffsets.sorted();
950 // Only let other nodes change our time by so much
951 if (abs64(nMedian) < 70 * 60)
953 nTimeOffset = nMedian;
962 // If nobody has a time different than ours but within 5 minutes of ours, give a warning
964 BOOST_FOREACH(int64 nOffset, vSorted)
965 if (nOffset != 0 && abs64(nOffset) < 5 * 60)
971 string strMessage = _("Warning: Please check that your computer's date and time are correct. If your clock is wrong Bitcoin will not work properly.");
972 strMiscWarning = strMessage;
973 printf("*** %s\n", strMessage.c_str());
974 boost::thread(boost::bind(ThreadSafeMessageBox, strMessage+" ", string("Bitcoin"), wxOK | wxICON_EXCLAMATION, (wxWindow*)NULL, -1, -1));
979 BOOST_FOREACH(int64 n, vSorted)
980 printf("%+"PRI64d" ", n);
983 printf("nTimeOffset = %+"PRI64d" (%+"PRI64d" minutes)\n", nTimeOffset, nTimeOffset/60);
995 string FormatVersion(int nVersion)
997 if (nVersion%100 == 0)
998 return strprintf("%d.%d.%d", nVersion/1000000, (nVersion/10000)%100, (nVersion/100)%100);
1000 return strprintf("%d.%d.%d.%d", nVersion/1000000, (nVersion/10000)%100, (nVersion/100)%100, nVersion%100);
1003 string FormatFullVersion()
1005 string s = FormatVersion(CLIENT_VERSION);
1006 if (VERSION_IS_BETA) {
1013 // Format the subversion field according to BIP 14 spec (https://en.bitcoin.it/wiki/BIP_0014)
1014 std::string FormatSubVersion(const std::string& name, int nClientVersion, const std::vector<std::string>& comments)
1016 std::ostringstream ss;
1018 ss << name << ":" << FormatVersion(nClientVersion);
1019 if (!comments.empty())
1020 ss << "(" << boost::algorithm::join(comments, "; ") << ")";
1027 #ifdef DEBUG_LOCKORDER
1029 // Early deadlock detection.
1030 // Problem being solved:
1031 // Thread 1 locks A, then B, then C
1032 // Thread 2 locks D, then C, then A
1033 // --> may result in deadlock between the two threads, depending on when they run.
1034 // Solution implemented here:
1035 // Keep track of pairs of locks: (A before B), (A before C), etc.
1036 // Complain if any thread trys to lock in a different order.
1039 struct CLockLocation
1041 CLockLocation(const char* pszName, const char* pszFile, int nLine)
1043 mutexName = pszName;
1044 sourceFile = pszFile;
1048 std::string ToString() const
1050 return mutexName+" "+sourceFile+":"+itostr(sourceLine);
1054 std::string mutexName;
1055 std::string sourceFile;
1059 typedef std::vector< std::pair<CCriticalSection*, CLockLocation> > LockStack;
1061 static boost::interprocess::interprocess_mutex dd_mutex;
1062 static std::map<std::pair<CCriticalSection*, CCriticalSection*>, LockStack> lockorders;
1063 static boost::thread_specific_ptr<LockStack> lockstack;
1066 static void potential_deadlock_detected(const std::pair<CCriticalSection*, CCriticalSection*>& mismatch, const LockStack& s1, const LockStack& s2)
1068 printf("POTENTIAL DEADLOCK DETECTED\n");
1069 printf("Previous lock order was:\n");
1070 BOOST_FOREACH(const PAIRTYPE(CCriticalSection*, CLockLocation)& i, s2)
1072 if (i.first == mismatch.first) printf(" (1)");
1073 if (i.first == mismatch.second) printf(" (2)");
1074 printf(" %s\n", i.second.ToString().c_str());
1076 printf("Current lock order is:\n");
1077 BOOST_FOREACH(const PAIRTYPE(CCriticalSection*, CLockLocation)& i, s1)
1079 if (i.first == mismatch.first) printf(" (1)");
1080 if (i.first == mismatch.second) printf(" (2)");
1081 printf(" %s\n", i.second.ToString().c_str());
1085 static void push_lock(CCriticalSection* c, const CLockLocation& locklocation)
1087 bool fOrderOK = true;
1088 if (lockstack.get() == NULL)
1089 lockstack.reset(new LockStack);
1091 if (fDebug) printf("Locking: %s\n", locklocation.ToString().c_str());
1094 (*lockstack).push_back(std::make_pair(c, locklocation));
1096 BOOST_FOREACH(const PAIRTYPE(CCriticalSection*, CLockLocation)& i, (*lockstack))
1098 if (i.first == c) break;
1100 std::pair<CCriticalSection*, CCriticalSection*> p1 = std::make_pair(i.first, c);
1101 if (lockorders.count(p1))
1103 lockorders[p1] = (*lockstack);
1105 std::pair<CCriticalSection*, CCriticalSection*> p2 = std::make_pair(c, i.first);
1106 if (lockorders.count(p2))
1108 potential_deadlock_detected(p1, lockorders[p2], lockorders[p1]);
1115 static void pop_lock()
1119 const CLockLocation& locklocation = (*lockstack).rbegin()->second;
1120 printf("Unlocked: %s\n", locklocation.ToString().c_str());
1123 (*lockstack).pop_back();
1127 void CCriticalSection::Enter(const char* pszName, const char* pszFile, int nLine)
1129 push_lock(this, CLockLocation(pszName, pszFile, nLine));
1132 void CCriticalSection::Leave()
1137 bool CCriticalSection::TryEnter(const char* pszName, const char* pszFile, int nLine)
1139 push_lock(this, CLockLocation(pszName, pszFile, nLine));
1140 bool result = mutex.try_lock();
1141 if (!result) pop_lock();
1147 void CCriticalSection::Enter(const char*, const char*, int)
1152 void CCriticalSection::Leave()
1157 bool CCriticalSection::TryEnter(const char*, const char*, int)
1159 bool result = mutex.try_lock();
1163 #endif /* DEBUG_LOCKORDER */