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-rw-r--r--util.cpp1430
1 files changed, 715 insertions, 715 deletions
diff --git a/util.cpp b/util.cpp
index 4293b2d5e2..c374dc2d3b 100644
--- a/util.cpp
+++ b/util.cpp
@@ -1,715 +1,715 @@
-// 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"
-
-
-map<string, string> mapArgs;
-map<string, vector<string> > mapMultiArgs;
-bool fDebug = false;
-bool fPrintToConsole = false;
-bool fPrintToDebugger = false;
-char pszSetDataDir[MAX_PATH] = "";
-bool fShutdown = false;
-bool fDaemon = false;
-bool fCommandLine = false;
-
-
-
-
-
-// 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 = PerformanceCounter();
- 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)
- {
- uint256 hash;
- SHA256(pdata, nSize, (unsigned char*)&hash);
- RAND_add(&hash, sizeof(hash), min(nSize/500.0, (double)sizeof(hash)));
- hash = 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);
-}
-
-
-
-
-
-
-
-
-
-
-
-inline int OutputDebugStringF(const char* pszFormat, ...)
-{
- int ret = 0;
- if (fPrintToConsole || wxTheApp == NULL)
- {
- // 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
- char pszFile[MAX_PATH+100];
- GetDataDir(pszFile);
- strlcat(pszFile, "/debug.log", sizeof(pszFile));
- FILE* fileout = fopen(pszFile, "a");
- if (fileout)
- {
- //// Debug print useful for profiling
- //fprintf(fileout, " %"PRI64d" ", GetTimeMillis());
- va_list arg_ptr;
- va_start(arg_ptr, pszFormat);
- ret = vfprintf(fileout, pszFormat, arg_ptr);
- va_end(arg_ptr);
- fclose(fileout);
- }
- }
-
-#ifdef __WXMSW__
- if (fPrintToDebugger)
- {
- // accumulate a line at a time
- static CCriticalSection cs_OutputDebugStringF;
- 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)
-{
- n /= CENT;
- string str = strprintf("%"PRI64d".%02"PRI64d, (n > 0 ? n : -n)/100, (n > 0 ? n : -n)%100);
- for (int i = 6; 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 nCents = 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++;
- if (isdigit(*p))
- {
- nCents = 10 * (*p++ - '0');
- if (isdigit(*p))
- nCents += (*p++ - '0');
- }
- 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 (nCents < 0 || nCents > 99)
- return false;
- int64 nWhole = atoi64(strWhole);
- int64 nPreValue = nWhole * 100 + nCents;
- int64 nValue = nPreValue * CENT;
- if (nValue / CENT != nPreValue)
- return false;
- if (nValue / COIN != nWhole)
- return false;
- nRet = nValue;
- return true;
-}
-
-
-vector<unsigned char> ParseHex(const char* psz)
-{
- vector<unsigned char> vch;
- while (isspace(*psz))
- psz++;
- vch.reserve((strlen(psz)+1)/3);
-
- 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, };
-
- while (*psz)
- {
- char c = phexdigit[(unsigned char)*psz++];
- if (c == -1)
- break;
- unsigned char n = (c << 4);
- if (*psz)
- {
- char c = phexdigit[(unsigned char)*psz++];
- if (c == -1)
- break;
- n |= c;
- vch.push_back(n);
- }
- while (isspace(*psz))
- psz++;
- }
-
- return vch;
-}
-
-vector<unsigned char> ParseHex(const std::string& str)
-{
- return ParseHex(str.c_str());
-}
-
-
-void ParseParameters(int argc, char* argv[])
-{
- mapArgs.clear();
- mapMultiArgs.clear();
- for (int i = 0; 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
- mapArgs[psz] = pszValue;
- mapMultiArgs[psz].push_back(pszValue);
- }
-}
-
-
-const char* wxGetTranslation(const char* pszEnglish)
-{
- // 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;
-}
-
-
-
-
-
-
-
-
-
-
-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
- // might not be thread safe, uses wxString
- //const char* pszModule = wxStandardPaths::Get().GetExecutablePath().mb_str();
- 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[1000];
- FormatException(pszMessage, pex, pszThread);
- printf("\n%s", pszMessage);
-}
-
-void PrintException(std::exception* pex, const char* pszThread)
-{
- char pszMessage[1000];
- FormatException(pszMessage, pex, pszThread);
- printf("\n\n************************\n%s\n", pszMessage);
- fprintf(stderr, "\n\n************************\n%s\n", pszMessage);
- if (wxTheApp && !fDaemon && fGUI)
- MyMessageBox(pszMessage, "Error", wxOK | wxICON_ERROR);
- throw;
- //DebugBreak();
-}
-
-
-
-
-
-
-
-
-#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 __WXOSX__
- // Mac
- strHome += "Library/Application Support/";
- _mkdir(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.
- if (pszSetDataDir[0] != 0)
- {
- strlcpy(pszDir, pszSetDataDir, MAX_PATH);
- static bool fMkdirDone;
- if (!fMkdirDone)
- {
- fMkdirDone = true;
- _mkdir(pszDir);
- }
- }
- 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, wxStandardPaths::Get().GetUserDataDir().c_str(), sizeof(pszCachedDir));
- strlcpy(pszCachedDir, GetDefaultDataDir().c_str(), sizeof(pszCachedDir));
- _mkdir(pszCachedDir);
- }
- strlcpy(pszDir, pszCachedDir, MAX_PATH);
- }
-}
-
-string GetDataDir()
-{
- char pszDir[MAX_PATH];
- GetDataDir(pszDir);
- return pszDir;
-}
-
-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 chronometers are:
-// - System clock
-// - Median of other server's clocks
-// - NTP servers
-//
-// note: NTP isn't implemented yet, so until then we just use the median
-// of other nodes clocks to correct ours.
-//
-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];
- nTimeOffset = nMedian;
- if ((nMedian > 0 ? nMedian : -nMedian) > 5 * 60)
- {
- // Only let other nodes change our clock so far before we
- // go to the NTP servers
- /// todo: Get time from NTP servers, then set a flag
- /// to make sure it doesn't get changed again
- }
- foreach(int64 n, vTimeOffsets)
- printf("%+"PRI64d" ", n);
- printf("| nTimeOffset = %+"PRI64d" (%+"PRI64d" minutes)\n", nTimeOffset, nTimeOffset/60);
- }
-}
+// 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"
+
+
+map<string, string> mapArgs;
+map<string, vector<string> > mapMultiArgs;
+bool fDebug = false;
+bool fPrintToConsole = false;
+bool fPrintToDebugger = false;
+char pszSetDataDir[MAX_PATH] = "";
+bool fShutdown = false;
+bool fDaemon = false;
+bool fCommandLine = false;
+
+
+
+
+
+// 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 = PerformanceCounter();
+ 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)
+ {
+ uint256 hash;
+ SHA256(pdata, nSize, (unsigned char*)&hash);
+ RAND_add(&hash, sizeof(hash), min(nSize/500.0, (double)sizeof(hash)));
+ hash = 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);
+}
+
+
+
+
+
+
+
+
+
+
+
+inline int OutputDebugStringF(const char* pszFormat, ...)
+{
+ int ret = 0;
+ if (fPrintToConsole || wxTheApp == NULL)
+ {
+ // 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
+ char pszFile[MAX_PATH+100];
+ GetDataDir(pszFile);
+ strlcat(pszFile, "/debug.log", sizeof(pszFile));
+ FILE* fileout = fopen(pszFile, "a");
+ if (fileout)
+ {
+ //// Debug print useful for profiling
+ //fprintf(fileout, " %"PRI64d" ", GetTimeMillis());
+ va_list arg_ptr;
+ va_start(arg_ptr, pszFormat);
+ ret = vfprintf(fileout, pszFormat, arg_ptr);
+ va_end(arg_ptr);
+ fclose(fileout);
+ }
+ }
+
+#ifdef __WXMSW__
+ if (fPrintToDebugger)
+ {
+ // accumulate a line at a time
+ static CCriticalSection cs_OutputDebugStringF;
+ 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)
+{
+ n /= CENT;
+ string str = strprintf("%"PRI64d".%02"PRI64d, (n > 0 ? n : -n)/100, (n > 0 ? n : -n)%100);
+ for (int i = 6; 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 nCents = 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++;
+ if (isdigit(*p))
+ {
+ nCents = 10 * (*p++ - '0');
+ if (isdigit(*p))
+ nCents += (*p++ - '0');
+ }
+ 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 (nCents < 0 || nCents > 99)
+ return false;
+ int64 nWhole = atoi64(strWhole);
+ int64 nPreValue = nWhole * 100 + nCents;
+ int64 nValue = nPreValue * CENT;
+ if (nValue / CENT != nPreValue)
+ return false;
+ if (nValue / COIN != nWhole)
+ return false;
+ nRet = nValue;
+ return true;
+}
+
+
+vector<unsigned char> ParseHex(const char* psz)
+{
+ vector<unsigned char> vch;
+ while (isspace(*psz))
+ psz++;
+ vch.reserve((strlen(psz)+1)/3);
+
+ 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, };
+
+ while (*psz)
+ {
+ char c = phexdigit[(unsigned char)*psz++];
+ if (c == -1)
+ break;
+ unsigned char n = (c << 4);
+ if (*psz)
+ {
+ char c = phexdigit[(unsigned char)*psz++];
+ if (c == -1)
+ break;
+ n |= c;
+ vch.push_back(n);
+ }
+ while (isspace(*psz))
+ psz++;
+ }
+
+ return vch;
+}
+
+vector<unsigned char> ParseHex(const std::string& str)
+{
+ return ParseHex(str.c_str());
+}
+
+
+void ParseParameters(int argc, char* argv[])
+{
+ mapArgs.clear();
+ mapMultiArgs.clear();
+ for (int i = 0; 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
+ mapArgs[psz] = pszValue;
+ mapMultiArgs[psz].push_back(pszValue);
+ }
+}
+
+
+const char* wxGetTranslation(const char* pszEnglish)
+{
+ // 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;
+}
+
+
+
+
+
+
+
+
+
+
+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
+ // might not be thread safe, uses wxString
+ //const char* pszModule = wxStandardPaths::Get().GetExecutablePath().mb_str();
+ 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[1000];
+ FormatException(pszMessage, pex, pszThread);
+ printf("\n%s", pszMessage);
+}
+
+void PrintException(std::exception* pex, const char* pszThread)
+{
+ char pszMessage[1000];
+ FormatException(pszMessage, pex, pszThread);
+ printf("\n\n************************\n%s\n", pszMessage);
+ fprintf(stderr, "\n\n************************\n%s\n", pszMessage);
+ if (wxTheApp && !fDaemon && fGUI)
+ MyMessageBox(pszMessage, "Error", wxOK | wxICON_ERROR);
+ throw;
+ //DebugBreak();
+}
+
+
+
+
+
+
+
+
+#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 __WXOSX__
+ // Mac
+ strHome += "Library/Application Support/";
+ _mkdir(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.
+ if (pszSetDataDir[0] != 0)
+ {
+ strlcpy(pszDir, pszSetDataDir, MAX_PATH);
+ static bool fMkdirDone;
+ if (!fMkdirDone)
+ {
+ fMkdirDone = true;
+ _mkdir(pszDir);
+ }
+ }
+ 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, wxStandardPaths::Get().GetUserDataDir().c_str(), sizeof(pszCachedDir));
+ strlcpy(pszCachedDir, GetDefaultDataDir().c_str(), sizeof(pszCachedDir));
+ _mkdir(pszCachedDir);
+ }
+ strlcpy(pszDir, pszCachedDir, MAX_PATH);
+ }
+}
+
+string GetDataDir()
+{
+ char pszDir[MAX_PATH];
+ GetDataDir(pszDir);
+ return pszDir;
+}
+
+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 chronometers are:
+// - System clock
+// - Median of other server's clocks
+// - NTP servers
+//
+// note: NTP isn't implemented yet, so until then we just use the median
+// of other nodes clocks to correct ours.
+//
+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];
+ nTimeOffset = nMedian;
+ if ((nMedian > 0 ? nMedian : -nMedian) > 5 * 60)
+ {
+ // Only let other nodes change our clock so far before we
+ // go to the NTP servers
+ /// todo: Get time from NTP servers, then set a flag
+ /// to make sure it doesn't get changed again
+ }
+ foreach(int64 n, vTimeOffsets)
+ printf("%+"PRI64d" ", n);
+ printf("| nTimeOffset = %+"PRI64d" (%+"PRI64d" minutes)\n", nTimeOffset, nTimeOffset/60);
+ }
+}
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-22 01:57:01 +0000