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-rw-r--r--src/util.cpp906
1 files changed, 906 insertions, 0 deletions
diff --git a/src/util.cpp b/src/util.cpp
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+++ b/src/util.cpp
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+// 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.
+#include "headers.h"
+
+using namespace std;
+using namespace boost;
+
+map<string, string> mapArgs;
+map<string, vector<string> > mapMultiArgs;
+bool fDebug = false;
+bool fPrintToConsole = false;
+bool fPrintToDebugger = false;
+char pszSetDataDir[MAX_PATH] = "";
+bool fRequestShutdown = false;
+bool fShutdown = false;
+bool fDaemon = false;
+bool fServer = false;
+bool fCommandLine = false;
+string strMiscWarning;
+bool fTestNet = false;
+bool fNoListen = false;
+bool fLogTimestamps = false;
+
+
+
+
+// Workaround for "multiple definition of `_tls_used'"
+// http://svn.boost.org/trac/boost/ticket/4258
+extern "C" void tss_cleanup_implemented() { }
+
+
+
+
+
+// Init openssl library multithreading support
+static boost::interprocess::interprocess_mutex** ppmutexOpenSSL;
+void locking_callback(int mode, int i, const char* file, int line)
+{
+ if (mode & CRYPTO_LOCK)
+ ppmutexOpenSSL[i]->lock();
+ else
+ ppmutexOpenSSL[i]->unlock();
+}
+
+// Init
+class CInit
+{
+public:
+ CInit()
+ {
+ // Init openssl library multithreading support
+ ppmutexOpenSSL = (boost::interprocess::interprocess_mutex**)OPENSSL_malloc(CRYPTO_num_locks() * sizeof(boost::interprocess::interprocess_mutex*));
+ for (int i = 0; i < CRYPTO_num_locks(); i++)
+ ppmutexOpenSSL[i] = new boost::interprocess::interprocess_mutex();
+ CRYPTO_set_locking_callback(locking_callback);
+
+#ifdef __WXMSW__
+ // Seed random number generator with screen scrape and other hardware sources
+ RAND_screen();
+#endif
+
+ // Seed random number generator with performance counter
+ RandAddSeed();
+ }
+ ~CInit()
+ {
+ // Shutdown openssl library multithreading support
+ CRYPTO_set_locking_callback(NULL);
+ for (int i = 0; i < CRYPTO_num_locks(); i++)
+ delete ppmutexOpenSSL[i];
+ OPENSSL_free(ppmutexOpenSSL);
+ }
+}
+instance_of_cinit;
+
+
+
+
+
+
+
+
+void RandAddSeed()
+{
+ // Seed with CPU performance counter
+ int64 nCounter = GetPerformanceCounter();
+ RAND_add(&nCounter, sizeof(nCounter), 1.5);
+ memset(&nCounter, 0, sizeof(nCounter));
+}
+
+void RandAddSeedPerfmon()
+{
+ RandAddSeed();
+
+ // This can take up to 2 seconds, so only do it every 10 minutes
+ static int64 nLastPerfmon;
+ if (GetTime() < nLastPerfmon + 10 * 60)
+ return;
+ nLastPerfmon = GetTime();
+
+#ifdef __WXMSW__
+ // Don't need this on Linux, OpenSSL automatically uses /dev/urandom
+ // Seed with the entire set of perfmon data
+ unsigned char pdata[250000];
+ memset(pdata, 0, sizeof(pdata));
+ unsigned long nSize = sizeof(pdata);
+ long ret = RegQueryValueExA(HKEY_PERFORMANCE_DATA, "Global", NULL, NULL, pdata, &nSize);
+ RegCloseKey(HKEY_PERFORMANCE_DATA);
+ if (ret == ERROR_SUCCESS)
+ {
+ RAND_add(pdata, nSize, nSize/100.0);
+ memset(pdata, 0, nSize);
+ printf("%s RandAddSeed() %d bytes\n", DateTimeStrFormat("%x %H:%M", GetTime()).c_str(), nSize);
+ }
+#endif
+}
+
+uint64 GetRand(uint64 nMax)
+{
+ if (nMax == 0)
+ return 0;
+
+ // The range of the random source must be a multiple of the modulus
+ // to give every possible output value an equal possibility
+ uint64 nRange = (UINT64_MAX / nMax) * nMax;
+ uint64 nRand = 0;
+ do
+ RAND_bytes((unsigned char*)&nRand, sizeof(nRand));
+ while (nRand >= nRange);
+ return (nRand % nMax);
+}
+
+int GetRandInt(int nMax)
+{
+ return GetRand(nMax);
+}
+
+
+
+
+
+
+
+
+
+
+
+inline int OutputDebugStringF(const char* pszFormat, ...)
+{
+ int ret = 0;
+ if (fPrintToConsole)
+ {
+ // print to console
+ va_list arg_ptr;
+ va_start(arg_ptr, pszFormat);
+ ret = vprintf(pszFormat, arg_ptr);
+ va_end(arg_ptr);
+ }
+ else
+ {
+ // print to debug.log
+ static FILE* fileout = NULL;
+
+ if (!fileout)
+ {
+ char pszFile[MAX_PATH+100];
+ GetDataDir(pszFile);
+ strlcat(pszFile, "/debug.log", sizeof(pszFile));
+ fileout = fopen(pszFile, "a");
+ if (fileout) setbuf(fileout, NULL); // unbuffered
+ }
+ if (fileout)
+ {
+ static bool fStartedNewLine = true;
+
+ // Debug print useful for profiling
+ if (fLogTimestamps && fStartedNewLine)
+ fprintf(fileout, "%s ", DateTimeStrFormat("%x %H:%M:%S", GetTime()).c_str());
+ if (pszFormat[strlen(pszFormat) - 1] == '\n')
+ fStartedNewLine = true;
+ else
+ fStartedNewLine = false;
+
+ va_list arg_ptr;
+ va_start(arg_ptr, pszFormat);
+ ret = vfprintf(fileout, pszFormat, arg_ptr);
+ va_end(arg_ptr);
+ }
+ }
+
+#ifdef __WXMSW__
+ if (fPrintToDebugger)
+ {
+ static CCriticalSection cs_OutputDebugStringF;
+
+ // accumulate a line at a time
+ CRITICAL_BLOCK(cs_OutputDebugStringF)
+ {
+ static char pszBuffer[50000];
+ static char* pend;
+ if (pend == NULL)
+ pend = pszBuffer;
+ va_list arg_ptr;
+ va_start(arg_ptr, pszFormat);
+ int limit = END(pszBuffer) - pend - 2;
+ int ret = _vsnprintf(pend, limit, pszFormat, arg_ptr);
+ va_end(arg_ptr);
+ if (ret < 0 || ret >= limit)
+ {
+ pend = END(pszBuffer) - 2;
+ *pend++ = '\n';
+ }
+ else
+ pend += ret;
+ *pend = '\0';
+ char* p1 = pszBuffer;
+ char* p2;
+ while (p2 = strchr(p1, '\n'))
+ {
+ p2++;
+ char c = *p2;
+ *p2 = '\0';
+ OutputDebugStringA(p1);
+ *p2 = c;
+ p1 = p2;
+ }
+ if (p1 != pszBuffer)
+ memmove(pszBuffer, p1, pend - p1 + 1);
+ pend -= (p1 - pszBuffer);
+ }
+ }
+#endif
+ return ret;
+}
+
+
+// Safer snprintf
+// - prints up to limit-1 characters
+// - output string is always null terminated even if limit reached
+// - return value is the number of characters actually printed
+int my_snprintf(char* buffer, size_t limit, const char* format, ...)
+{
+ if (limit == 0)
+ return 0;
+ va_list arg_ptr;
+ va_start(arg_ptr, format);
+ int ret = _vsnprintf(buffer, limit, format, arg_ptr);
+ va_end(arg_ptr);
+ if (ret < 0 || ret >= limit)
+ {
+ ret = limit - 1;
+ buffer[limit-1] = 0;
+ }
+ return ret;
+}
+
+
+string strprintf(const char* format, ...)
+{
+ char buffer[50000];
+ char* p = buffer;
+ int limit = sizeof(buffer);
+ int ret;
+ loop
+ {
+ va_list arg_ptr;
+ va_start(arg_ptr, format);
+ ret = _vsnprintf(p, limit, format, arg_ptr);
+ va_end(arg_ptr);
+ if (ret >= 0 && ret < limit)
+ break;
+ if (p != buffer)
+ delete[] p;
+ limit *= 2;
+ p = new char[limit];
+ if (p == NULL)
+ throw std::bad_alloc();
+ }
+ string str(p, p+ret);
+ if (p != buffer)
+ delete[] p;
+ return str;
+}
+
+
+bool error(const char* format, ...)
+{
+ char buffer[50000];
+ int limit = sizeof(buffer);
+ va_list arg_ptr;
+ va_start(arg_ptr, format);
+ int ret = _vsnprintf(buffer, limit, format, arg_ptr);
+ va_end(arg_ptr);
+ if (ret < 0 || ret >= limit)
+ {
+ ret = limit - 1;
+ buffer[limit-1] = 0;
+ }
+ printf("ERROR: %s\n", buffer);
+ return false;
+}
+
+
+void ParseString(const string& str, char c, vector<string>& v)
+{
+ if (str.empty())
+ return;
+ string::size_type i1 = 0;
+ string::size_type i2;
+ loop
+ {
+ i2 = str.find(c, i1);
+ if (i2 == str.npos)
+ {
+ v.push_back(str.substr(i1));
+ return;
+ }
+ v.push_back(str.substr(i1, i2-i1));
+ i1 = i2+1;
+ }
+}
+
+
+string FormatMoney(int64 n, bool fPlus)
+{
+ // Note: not using straight sprintf here because we do NOT want
+ // localized number formatting.
+ int64 n_abs = (n > 0 ? n : -n);
+ int64 quotient = n_abs/COIN;
+ int64 remainder = n_abs%COIN;
+ string str = strprintf("%"PRI64d".%08"PRI64d, quotient, remainder);
+
+ // Right-trim excess 0's before the decimal point:
+ int nTrim = 0;
+ for (int i = str.size()-1; (str[i] == '0' && isdigit(str[i-2])); --i)
+ ++nTrim;
+ if (nTrim)
+ str.erase(str.size()-nTrim, nTrim);
+
+ // Insert thousands-separators:
+ size_t point = str.find(".");
+ for (int i = (str.size()-point)+3; i < str.size(); i += 4)
+ if (isdigit(str[str.size() - i - 1]))
+ str.insert(str.size() - i, 1, ',');
+ if (n < 0)
+ str.insert((unsigned int)0, 1, '-');
+ else if (fPlus && n > 0)
+ str.insert((unsigned int)0, 1, '+');
+ return str;
+}
+
+
+bool ParseMoney(const string& str, int64& nRet)
+{
+ return ParseMoney(str.c_str(), nRet);
+}
+
+bool ParseMoney(const char* pszIn, int64& nRet)
+{
+ string strWhole;
+ int64 nUnits = 0;
+ const char* p = pszIn;
+ while (isspace(*p))
+ p++;
+ for (; *p; p++)
+ {
+ if (*p == ',' && p > pszIn && isdigit(p[-1]) && isdigit(p[1]) && isdigit(p[2]) && isdigit(p[3]) && !isdigit(p[4]))
+ continue;
+ if (*p == '.')
+ {
+ p++;
+ int64 nMult = CENT*10;
+ while (isdigit(*p) && (nMult > 0))
+ {
+ nUnits += nMult * (*p++ - '0');
+ nMult /= 10;
+ }
+ break;
+ }
+ if (isspace(*p))
+ break;
+ if (!isdigit(*p))
+ return false;
+ strWhole.insert(strWhole.end(), *p);
+ }
+ for (; *p; p++)
+ if (!isspace(*p))
+ return false;
+ if (strWhole.size() > 14)
+ return false;
+ if (nUnits < 0 || nUnits > COIN)
+ return false;
+ int64 nWhole = atoi64(strWhole);
+ int64 nValue = nWhole*COIN + nUnits;
+
+ nRet = nValue;
+ return true;
+}
+
+
+vector<unsigned char> ParseHex(const char* psz)
+{
+ static char phexdigit[256] =
+ { -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+ 0,1,2,3,4,5,6,7,8,9,-1,-1,-1,-1,-1,-1,
+ -1,0xa,0xb,0xc,0xd,0xe,0xf,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+ -1,0xa,0xb,0xc,0xd,0xe,0xf,-1,-1,-1,-1,-1,-1,-1,-1,-1
+ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, };
+
+ // convert hex dump to vector
+ vector<unsigned char> vch;
+ loop
+ {
+ while (isspace(*psz))
+ psz++;
+ char c = phexdigit[(unsigned char)*psz++];
+ if (c == (char)-1)
+ break;
+ unsigned char n = (c << 4);
+ c = phexdigit[(unsigned char)*psz++];
+ if (c == (char)-1)
+ break;
+ n |= c;
+ vch.push_back(n);
+ }
+ return vch;
+}
+
+vector<unsigned char> ParseHex(const string& str)
+{
+ return ParseHex(str.c_str());
+}
+
+
+void ParseParameters(int argc, char* argv[])
+{
+ mapArgs.clear();
+ mapMultiArgs.clear();
+ for (int i = 1; i < argc; i++)
+ {
+ char psz[10000];
+ strlcpy(psz, argv[i], sizeof(psz));
+ char* pszValue = (char*)"";
+ if (strchr(psz, '='))
+ {
+ pszValue = strchr(psz, '=');
+ *pszValue++ = '\0';
+ }
+ #ifdef __WXMSW__
+ _strlwr(psz);
+ if (psz[0] == '/')
+ psz[0] = '-';
+ #endif
+ if (psz[0] != '-')
+ break;
+ mapArgs[psz] = pszValue;
+ mapMultiArgs[psz].push_back(pszValue);
+ }
+}
+
+
+const char* wxGetTranslation(const char* pszEnglish)
+{
+#ifdef GUI
+ // Wrapper of wxGetTranslation returning the same const char* type as was passed in
+ static CCriticalSection cs;
+ CRITICAL_BLOCK(cs)
+ {
+ // Look in cache
+ static map<string, char*> mapCache;
+ map<string, char*>::iterator mi = mapCache.find(pszEnglish);
+ if (mi != mapCache.end())
+ return (*mi).second;
+
+ // wxWidgets translation
+ wxString strTranslated = wxGetTranslation(wxString(pszEnglish, wxConvUTF8));
+
+ // We don't cache unknown strings because caller might be passing in a
+ // dynamic string and we would keep allocating memory for each variation.
+ if (strcmp(pszEnglish, strTranslated.utf8_str()) == 0)
+ return pszEnglish;
+
+ // Add to cache, memory doesn't need to be freed. We only cache because
+ // we must pass back a pointer to permanently allocated memory.
+ char* pszCached = new char[strlen(strTranslated.utf8_str())+1];
+ strcpy(pszCached, strTranslated.utf8_str());
+ mapCache[pszEnglish] = pszCached;
+ return pszCached;
+ }
+ return NULL;
+#else
+ return pszEnglish;
+#endif
+}
+
+
+bool WildcardMatch(const char* psz, const char* mask)
+{
+ loop
+ {
+ switch (*mask)
+ {
+ case '\0':
+ return (*psz == '\0');
+ case '*':
+ return WildcardMatch(psz, mask+1) || (*psz && WildcardMatch(psz+1, mask));
+ case '?':
+ if (*psz == '\0')
+ return false;
+ break;
+ default:
+ if (*psz != *mask)
+ return false;
+ break;
+ }
+ psz++;
+ mask++;
+ }
+}
+
+bool WildcardMatch(const string& str, const string& mask)
+{
+ return WildcardMatch(str.c_str(), mask.c_str());
+}
+
+
+
+
+
+
+
+
+void FormatException(char* pszMessage, std::exception* pex, const char* pszThread)
+{
+#ifdef __WXMSW__
+ char pszModule[MAX_PATH];
+ pszModule[0] = '\0';
+ GetModuleFileNameA(NULL, pszModule, sizeof(pszModule));
+#else
+ const char* pszModule = "bitcoin";
+#endif
+ if (pex)
+ snprintf(pszMessage, 1000,
+ "EXCEPTION: %s \n%s \n%s in %s \n", typeid(*pex).name(), pex->what(), pszModule, pszThread);
+ else
+ snprintf(pszMessage, 1000,
+ "UNKNOWN EXCEPTION \n%s in %s \n", pszModule, pszThread);
+}
+
+void LogException(std::exception* pex, const char* pszThread)
+{
+ char pszMessage[10000];
+ FormatException(pszMessage, pex, pszThread);
+ printf("\n%s", pszMessage);
+}
+
+void PrintException(std::exception* pex, const char* pszThread)
+{
+ char pszMessage[10000];
+ FormatException(pszMessage, pex, pszThread);
+ printf("\n\n************************\n%s\n", pszMessage);
+ fprintf(stderr, "\n\n************************\n%s\n", pszMessage);
+ strMiscWarning = pszMessage;
+#ifdef GUI
+ if (wxTheApp && !fDaemon)
+ MyMessageBox(pszMessage, "Bitcoin", wxOK | wxICON_ERROR);
+#endif
+ throw;
+}
+
+void ThreadOneMessageBox(string strMessage)
+{
+ // Skip message boxes if one is already open
+ static bool fMessageBoxOpen;
+ if (fMessageBoxOpen)
+ return;
+ fMessageBoxOpen = true;
+ ThreadSafeMessageBox(strMessage, "Bitcoin", wxOK | wxICON_EXCLAMATION);
+ fMessageBoxOpen = false;
+}
+
+void PrintExceptionContinue(std::exception* pex, const char* pszThread)
+{
+ char pszMessage[10000];
+ FormatException(pszMessage, pex, pszThread);
+ printf("\n\n************************\n%s\n", pszMessage);
+ fprintf(stderr, "\n\n************************\n%s\n", pszMessage);
+ strMiscWarning = pszMessage;
+#ifdef GUI
+ if (wxTheApp && !fDaemon)
+ boost::thread(boost::bind(ThreadOneMessageBox, string(pszMessage)));
+#endif
+}
+
+
+
+
+
+
+
+
+#ifdef __WXMSW__
+typedef WINSHELLAPI BOOL (WINAPI *PSHGETSPECIALFOLDERPATHA)(HWND hwndOwner, LPSTR lpszPath, int nFolder, BOOL fCreate);
+
+string MyGetSpecialFolderPath(int nFolder, bool fCreate)
+{
+ char pszPath[MAX_PATH+100] = "";
+
+ // SHGetSpecialFolderPath isn't always available on old Windows versions
+ HMODULE hShell32 = LoadLibraryA("shell32.dll");
+ if (hShell32)
+ {
+ PSHGETSPECIALFOLDERPATHA pSHGetSpecialFolderPath =
+ (PSHGETSPECIALFOLDERPATHA)GetProcAddress(hShell32, "SHGetSpecialFolderPathA");
+ if (pSHGetSpecialFolderPath)
+ (*pSHGetSpecialFolderPath)(NULL, pszPath, nFolder, fCreate);
+ FreeModule(hShell32);
+ }
+
+ // Backup option
+ if (pszPath[0] == '\0')
+ {
+ if (nFolder == CSIDL_STARTUP)
+ {
+ strcpy(pszPath, getenv("USERPROFILE"));
+ strcat(pszPath, "\\Start Menu\\Programs\\Startup");
+ }
+ else if (nFolder == CSIDL_APPDATA)
+ {
+ strcpy(pszPath, getenv("APPDATA"));
+ }
+ }
+
+ return pszPath;
+}
+#endif
+
+string GetDefaultDataDir()
+{
+ // Windows: C:\Documents and Settings\username\Application Data\Bitcoin
+ // Mac: ~/Library/Application Support/Bitcoin
+ // Unix: ~/.bitcoin
+#ifdef __WXMSW__
+ // Windows
+ return MyGetSpecialFolderPath(CSIDL_APPDATA, true) + "\\Bitcoin";
+#else
+ char* pszHome = getenv("HOME");
+ if (pszHome == NULL || strlen(pszHome) == 0)
+ pszHome = (char*)"/";
+ string strHome = pszHome;
+ if (strHome[strHome.size()-1] != '/')
+ strHome += '/';
+#ifdef __WXMAC_OSX__
+ // Mac
+ strHome += "Library/Application Support/";
+ filesystem::create_directory(strHome.c_str());
+ return strHome + "Bitcoin";
+#else
+ // Unix
+ return strHome + ".bitcoin";
+#endif
+#endif
+}
+
+void GetDataDir(char* pszDir)
+{
+ // pszDir must be at least MAX_PATH length.
+ int nVariation;
+ if (pszSetDataDir[0] != 0)
+ {
+ strlcpy(pszDir, pszSetDataDir, MAX_PATH);
+ nVariation = 0;
+ }
+ else
+ {
+ // This can be called during exceptions by printf, so we cache the
+ // value so we don't have to do memory allocations after that.
+ static char pszCachedDir[MAX_PATH];
+ if (pszCachedDir[0] == 0)
+ strlcpy(pszCachedDir, GetDefaultDataDir().c_str(), sizeof(pszCachedDir));
+ strlcpy(pszDir, pszCachedDir, MAX_PATH);
+ nVariation = 1;
+ }
+ if (fTestNet)
+ {
+ char* p = pszDir + strlen(pszDir);
+ if (p > pszDir && p[-1] != '/' && p[-1] != '\\')
+ *p++ = '/';
+ strcpy(p, "testnet");
+ nVariation += 2;
+ }
+ static bool pfMkdir[4];
+ if (!pfMkdir[nVariation])
+ {
+ pfMkdir[nVariation] = true;
+ boost::filesystem::create_directory(pszDir);
+ }
+}
+
+string GetDataDir()
+{
+ char pszDir[MAX_PATH];
+ GetDataDir(pszDir);
+ return pszDir;
+}
+
+string GetConfigFile()
+{
+ namespace fs = boost::filesystem;
+ fs::path pathConfig(GetArg("-conf", "bitcoin.conf"));
+ if (!pathConfig.is_complete())
+ pathConfig = fs::path(GetDataDir()) / pathConfig;
+ return pathConfig.string();
+}
+
+void ReadConfigFile(map<string, string>& mapSettingsRet,
+ map<string, vector<string> >& mapMultiSettingsRet)
+{
+ namespace fs = boost::filesystem;
+ namespace pod = boost::program_options::detail;
+
+ fs::ifstream streamConfig(GetConfigFile());
+ if (!streamConfig.good())
+ return;
+
+ set<string> setOptions;
+ setOptions.insert("*");
+
+ for (pod::config_file_iterator it(streamConfig, setOptions), end; it != end; ++it)
+ {
+ // Don't overwrite existing settings so command line settings override bitcoin.conf
+ string strKey = string("-") + it->string_key;
+ if (mapSettingsRet.count(strKey) == 0)
+ mapSettingsRet[strKey] = it->value[0];
+ mapMultiSettingsRet[strKey].push_back(it->value[0]);
+ }
+}
+
+string GetPidFile()
+{
+ namespace fs = boost::filesystem;
+ fs::path pathConfig(GetArg("-pid", "bitcoind.pid"));
+ if (!pathConfig.is_complete())
+ pathConfig = fs::path(GetDataDir()) / pathConfig;
+ return pathConfig.string();
+}
+
+void CreatePidFile(string pidFile, pid_t pid)
+{
+ FILE* file;
+ if (file = fopen(pidFile.c_str(), "w"))
+ {
+ fprintf(file, "%d\n", pid);
+ fclose(file);
+ }
+}
+
+int GetFilesize(FILE* file)
+{
+ int nSavePos = ftell(file);
+ int nFilesize = -1;
+ if (fseek(file, 0, SEEK_END) == 0)
+ nFilesize = ftell(file);
+ fseek(file, nSavePos, SEEK_SET);
+ return nFilesize;
+}
+
+void ShrinkDebugFile()
+{
+ // Scroll debug.log if it's getting too big
+ string strFile = GetDataDir() + "/debug.log";
+ FILE* file = fopen(strFile.c_str(), "r");
+ if (file && GetFilesize(file) > 10 * 1000000)
+ {
+ // Restart the file with some of the end
+ char pch[200000];
+ fseek(file, -sizeof(pch), SEEK_END);
+ int nBytes = fread(pch, 1, sizeof(pch), file);
+ fclose(file);
+ if (file = fopen(strFile.c_str(), "w"))
+ {
+ fwrite(pch, 1, nBytes, file);
+ fclose(file);
+ }
+ }
+}
+
+
+
+
+
+
+
+
+//
+// "Never go to sea with two chronometers; take one or three."
+// Our three time sources are:
+// - System clock
+// - Median of other nodes's clocks
+// - The user (asking the user to fix the system clock if the first two disagree)
+//
+int64 GetTime()
+{
+ return time(NULL);
+}
+
+static int64 nTimeOffset = 0;
+
+int64 GetAdjustedTime()
+{
+ return GetTime() + nTimeOffset;
+}
+
+void AddTimeData(unsigned int ip, int64 nTime)
+{
+ int64 nOffsetSample = nTime - GetTime();
+
+ // Ignore duplicates
+ static set<unsigned int> setKnown;
+ if (!setKnown.insert(ip).second)
+ return;
+
+ // Add data
+ static vector<int64> vTimeOffsets;
+ if (vTimeOffsets.empty())
+ vTimeOffsets.push_back(0);
+ vTimeOffsets.push_back(nOffsetSample);
+ printf("Added time data, samples %d, offset %+"PRI64d" (%+"PRI64d" minutes)\n", vTimeOffsets.size(), vTimeOffsets.back(), vTimeOffsets.back()/60);
+ if (vTimeOffsets.size() >= 5 && vTimeOffsets.size() % 2 == 1)
+ {
+ sort(vTimeOffsets.begin(), vTimeOffsets.end());
+ int64 nMedian = vTimeOffsets[vTimeOffsets.size()/2];
+ // Only let other nodes change our time by so much
+ if (abs64(nMedian) < 70 * 60)
+ {
+ nTimeOffset = nMedian;
+ }
+ else
+ {
+ nTimeOffset = 0;
+
+ static bool fDone;
+ if (!fDone)
+ {
+ // If nobody has a time different than ours but within 5 minutes of ours, give a warning
+ bool fMatch = false;
+ BOOST_FOREACH(int64 nOffset, vTimeOffsets)
+ if (nOffset != 0 && abs64(nOffset) < 5 * 60)
+ fMatch = true;
+
+ if (!fMatch)
+ {
+ fDone = true;
+ string strMessage = _("Warning: Please check that your computer's date and time are correct. If your clock is wrong Bitcoin will not work properly.");
+ strMiscWarning = strMessage;
+ printf("*** %s\n", strMessage.c_str());
+ boost::thread(boost::bind(ThreadSafeMessageBox, strMessage+" ", string("Bitcoin"), wxOK | wxICON_EXCLAMATION, (wxWindow*)NULL, -1, -1));
+ }
+ }
+ }
+ BOOST_FOREACH(int64 n, vTimeOffsets)
+ printf("%+"PRI64d" ", n);
+ printf("| nTimeOffset = %+"PRI64d" (%+"PRI64d" minutes)\n", nTimeOffset, nTimeOffset/60);
+ }
+}
+
+
+
+
+
+
+
+
+
+string FormatVersion(int nVersion)
+{
+ if (nVersion%100 == 0)
+ return strprintf("%d.%d.%d", nVersion/1000000, (nVersion/10000)%100, (nVersion/100)%100);
+ else
+ return strprintf("%d.%d.%d.%d", nVersion/1000000, (nVersion/10000)%100, (nVersion/100)%100, nVersion%100);
+}
+
+string FormatFullVersion()
+{
+ string s = FormatVersion(VERSION) + pszSubVer;
+ if (VERSION_IS_BETA)
+ s += _("-beta");
+ return s;
+}
+
+
+
+
+
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-01 17:29:00 +0000