1 // Copyright (c) 2009-2010 Satoshi Nakamoto
2 // Copyright (c) 2009-2012 The Bitcoin developers
3 // Distributed under the MIT/X11 software license, see the accompanying
4 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
11 #include <sys/resource.h>
21 #include <boost/thread.hpp>
22 #include <boost/filesystem.hpp>
23 #include <boost/filesystem/path.hpp>
28 #if defined(__USE_MINGW_ANSI_STDIO)
29 #undef __USE_MINGW_ANSI_STDIO // This constant forces MinGW to conduct stupid behavior
35 static const int32_t nOneHour = 60 * 60;
36 static const int32_t nOneDay = 24 * 60 * 60;
37 static const int64_t nOneWeek = 7 * 24 * 60 * 60;
39 static const int64_t COIN = 1000000;
40 static const int64_t CENT = 10000;
42 #define BEGIN(a) ((char*)&(a))
43 #define END(a) ((char*)&((&(a))[1]))
44 #define UBEGIN(a) ((unsigned char*)&(a))
45 #define UEND(a) ((unsigned char*)&((&(a))[1]))
47 #ifndef THROW_WITH_STACKTRACE
48 #define THROW_WITH_STACKTRACE(exception) \
56 #if defined(_MSC_VER) || defined(__MSVCRT__)
57 /* Silence compiler warnings on Windows
58 related to MinGWs inttypes.h */
69 /* Format characters for (s)size_t and ptrdiff_t */
70 #if defined(_MSC_VER) || defined(__MSVCRT__)
71 /* (s)size_t and ptrdiff_t have the same size specifier in MSVC:
72 http://msdn.microsoft.com/en-us/library/tcxf1dw6%28v=vs.100%29.aspx
80 #else /* C99 standard */
89 // Align by increasing pointer, must have extra space at end of buffer
90 template <size_t nBytes, typename T>
99 u.n = (u.n + (nBytes-1)) & ~(nBytes-1);
104 #define MSG_NOSIGNAL 0
105 #define MSG_DONTWAIT 0
112 #define MAX_PATH 1024
113 inline void Sleep(int64_t n)
115 /*Boost has a year 2038 problem— if the request sleep time is past epoch+2^31 seconds the sleep returns instantly.
116 So we clamp our sleeps here to 10 years and hope that boost is fixed by 2028.*/
117 boost::thread::sleep(boost::get_system_time() + boost::posix_time::milliseconds(n>315576000000LL?315576000000LL:n));
121 /* This GNU C extension enables the compiler to check the format string against the parameters provided.
122 * X is the number of the "format string" parameter, and Y is the number of the first variadic parameter.
123 * Parameters count from 1.
126 #define ATTR_WARN_PRINTF(X,Y) __attribute__((format(printf,X,Y)))
128 #define ATTR_WARN_PRINTF(X,Y)
138 extern std::map<std::string, std::string> mapArgs;
139 extern std::map<std::string, std::vector<std::string> > mapMultiArgs;
141 extern bool fDebugNet;
142 extern bool fPrintToConsole;
143 extern bool fPrintToDebugger;
144 extern bool fRequestShutdown;
145 extern bool fShutdown;
148 extern bool fCommandLine;
149 extern std::string strMiscWarning;
150 extern bool fTestNet;
151 extern bool fLogTimestamps;
152 extern bool fReopenDebugLog;
155 void RandAddSeedPerfmon();
156 int ATTR_WARN_PRINTF(1,2) OutputDebugStringF(const char* pszFormat, ...);
159 Rationale for the real_strprintf / strprintf construction:
160 It is not allowed to use va_start with a pass-by-reference argument.
161 (C++ standard, 18.7, paragraph 3). Use a dummy argument to work around this, and use a
162 macro to keep similar semantics.
165 /** Overload strprintf for char*, so that GCC format type warnings can be given */
166 std::string ATTR_WARN_PRINTF(1,3) real_strprintf(const char *format, int dummy, ...);
167 /** Overload strprintf for std::string, to be able to use it with _ (translation).
168 * This will not support GCC format type warnings (-Wformat) so be careful.
170 std::string real_strprintf(const std::string &format, int dummy, ...);
171 #define strprintf(format, ...) real_strprintf(format, 0, __VA_ARGS__)
172 std::string vstrprintf(const char *format, va_list ap);
174 bool ATTR_WARN_PRINTF(1,2) error(const char *format, ...);
176 /* Redefine printf so that it directs output to debug.log
178 * Do this *after* defining the other printf-like functions, because otherwise the
179 * __attribute__((format(printf,X,Y))) gets expanded to __attribute__((format(OutputDebugStringF,X,Y)))
180 * which confuses gcc.
182 #define printf OutputDebugStringF
184 void PrintException(std::exception* pex, const char* pszThread);
185 void PrintExceptionContinue(std::exception* pex, const char* pszThread);
186 void ParseString(const std::string& str, char c, std::vector<std::string>& v);
187 std::string FormatMoney(int64_t n, bool fPlus=false);
188 bool ParseMoney(const std::string& str, int64_t& nRet);
189 bool ParseMoney(const char* pszIn, int64_t& nRet);
190 std::vector<uint8_t> ParseHex(const char *str);
191 inline std::vector<uint8_t> ParseHex(const std::string& str) { return ParseHex(str.c_str()); }
192 bool IsHex(const std::string& str);
193 std::vector<unsigned char> DecodeBase64(const char* p, bool* pfInvalid = NULL);
194 std::string DecodeBase64(const std::string& str);
195 std::string EncodeBase64(const unsigned char* pch, size_t len);
196 std::string EncodeBase64(const std::string& str);
197 std::vector<unsigned char> DecodeBase32(const char* p, bool* pfInvalid = NULL);
198 std::string DecodeBase32(const std::string& str);
199 std::string EncodeBase32(const unsigned char* pch, size_t len);
200 std::string EncodeBase32(const std::string& str);
201 std::string EncodeDumpTime(int64_t nTime);
202 int64_t DecodeDumpTime(const std::string& s);
203 std::string EncodeDumpString(const std::string &str);
204 std::string DecodeDumpString(const std::string &str);
205 void ParseParameters(int argc, const char*const argv[]);
206 bool WildcardMatch(const char* psz, const char* mask);
207 bool WildcardMatch(const std::string& str, const std::string& mask);
208 void FileCommit(FILE *fileout);
209 int GetFilesize(FILE* file);
210 bool RenameOver(boost::filesystem::path src, boost::filesystem::path dest);
211 boost::filesystem::path GetDefaultDataDir();
212 const boost::filesystem::path &GetDataDir(bool fNetSpecific = true);
213 boost::filesystem::path GetConfigFile();
214 boost::filesystem::path GetPidFile();
216 void CreatePidFile(const boost::filesystem::path &path, pid_t pid);
218 void ReadConfigFile(std::map<std::string, std::string>& mapSettingsRet, std::map<std::string, std::vector<std::string> >& mapMultiSettingsRet);
220 boost::filesystem::path GetSpecialFolderPath(int nFolder, bool fCreate = true);
222 void ShrinkDebugFile();
223 int GetRandInt(int nMax);
224 uint64_t GetRand(uint64_t nMax);
225 void FillRand(uint8_t *buffer, size_t nCount);
227 int64_t GetTimeMillis();
228 int64_t GetTimeMicros();
230 std::string FormatFullVersion();
231 std::string FormatSubVersion(const std::string& name, int nClientVersion, const std::vector<std::string>& comments);
232 void runCommand(std::string strCommand);
238 inline std::string i64tostr(int64_t n)
240 return strprintf("%" PRId64, n);
243 inline int64_t strtoll(const char* psz)
245 return strtoll(psz, NULL, 10);
248 inline int64_t strtoll(const std::string& str)
250 return strtoll(str.c_str(), NULL, 10);
253 inline int32_t strtol(const char* psz)
255 return strtol(psz, NULL, 10);
258 inline int32_t strtol(const std::string& str)
260 return strtol(str.c_str(), NULL, 10);
263 inline uint32_t strtoul(const char* psz)
265 return strtoul(psz, NULL, 10);
268 inline uint32_t strtoul(const std::string& str)
270 return strtoul(str.c_str(), NULL, 10);
273 inline int atoi(const std::string& str)
275 return atoi(str.c_str());
278 inline int roundint(double d)
280 return (int)(d > 0 ? d + 0.5 : d - 0.5);
283 inline int64_t roundint64(double d)
285 return (int64_t)(d > 0 ? d + 0.5 : d - 0.5);
288 inline std::string leftTrim(std::string src, char chr)
290 std::string::size_type pos = src.find_first_not_of(chr, 0);
299 std::string HexStr(const T itbegin, const T itend, bool fSpaces=false)
302 static const char hexmap[16] = { '0', '1', '2', '3', '4', '5', '6', '7',
303 '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
304 rv.reserve((itend-itbegin)*3);
305 for(T it = itbegin; it < itend; ++it)
307 unsigned char val = (unsigned char)(*it);
308 if(fSpaces && it != itbegin)
310 rv.push_back(hexmap[val>>4]);
311 rv.push_back(hexmap[val&15]);
317 inline std::string HexStr(const std::vector<unsigned char>& vch, bool fSpaces=false)
319 return HexStr(vch.begin(), vch.end(), fSpaces);
323 void PrintHex(const T pbegin, const T pend, const char* pszFormat="%s", bool fSpaces=true)
325 printf(pszFormat, HexStr(pbegin, pend, fSpaces).c_str());
328 inline void PrintHex(const std::vector<unsigned char>& vch, const char* pszFormat="%s", bool fSpaces=true)
330 printf(pszFormat, HexStr(vch, fSpaces).c_str());
333 inline int64_t GetPerformanceCounter()
335 int64_t nCounter = 0;
337 QueryPerformanceCounter((LARGE_INTEGER*)&nCounter);
340 gettimeofday(&t, NULL);
341 nCounter = (int64_t) t.tv_sec * 1000000 + t.tv_usec;
346 inline int64_t GetTimeMillis()
348 return std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count();
351 inline int64_t GetTimeMicros()
353 return std::chrono::duration_cast<std::chrono::microseconds>(std::chrono::system_clock::now().time_since_epoch()).count();
356 std::string DateTimeStrFormat(const char* pszFormat, int64_t nTime);
358 static const std::string strTimestampFormat = "%Y-%m-%d %H:%M:%S UTC";
359 inline std::string DateTimeStrFormat(int64_t nTime)
361 return DateTimeStrFormat(strTimestampFormat.c_str(), nTime);
366 void skipspaces(T& it)
372 inline bool IsSwitchChar(char c)
375 return c == '-' || c == '/';
382 * Return string argument or default value
384 * @param strArg Argument to get (e.g. "-foo")
385 * @param default (e.g. "1")
386 * @return command-line argument or default value
388 std::string GetArg(const std::string& strArg, const std::string& strDefault);
391 * Return 64-bit integer argument or default value
393 * @param strArg Argument to get (e.g. "-foo")
394 * @param default (e.g. 1)
395 * @return command-line argument (0 if invalid number) or default value
397 int64_t GetArg(const std::string& strArg, int64_t nDefault);
400 * Return 32-bit integer argument or default value
402 * @param strArg Argument to get (e.g. "-foo")
403 * @param default (e.g. 1)
404 * @return command-line argument (0 if invalid number) or default value
406 int32_t GetArgInt(const std::string& strArg, int32_t nDefault);
409 * Return 32-bit unsigned integer argument or default value
411 * @param strArg Argument to get (e.g. "-foo")
412 * @param default (e.g. 1)
413 * @return command-line argument (0 if invalid number) or default value
415 uint32_t GetArgUInt(const std::string& strArg, uint32_t nDefault);
418 * Return boolean argument or default value
420 * @param strArg Argument to get (e.g. "-foo")
421 * @param default (true or false)
422 * @return command-line argument or default value
424 bool GetBoolArg(const std::string& strArg, bool fDefault=false);
427 * Set an argument if it doesn't already have a value
429 * @param strArg Argument to set (e.g. "-foo")
430 * @param strValue Value (e.g. "1")
431 * @return true if argument gets set, false if it already had a value
433 bool SoftSetArg(const std::string& strArg, const std::string& strValue);
436 * Set a boolean argument if it doesn't already have a value
438 * @param strArg Argument to set (e.g. "-foo")
439 * @param fValue Value (e.g. false)
440 * @return true if argument gets set, false if it already had a value
442 bool SoftSetBoolArg(const std::string& strArg, bool fValue);
445 * Timing-attack-resistant comparison.
446 * Takes time proportional to length
449 template <typename T>
450 bool TimingResistantEqual(const T& a, const T& b)
452 if (b.size() == 0) return a.size() == 0;
453 size_t accumulator = a.size() ^ b.size();
454 for (size_t i = 0; i < a.size(); i++)
455 accumulator |= a[i] ^ b[i%b.size()];
456 return accumulator == 0;
459 bool NewThread(void(*pfn)(void*), void* parg);
462 inline void SetThreadPriority(int nPriority)
464 SetThreadPriority(GetCurrentThread(), nPriority);
468 #define THREAD_PRIORITY_LOWEST PRIO_MAX
469 #define THREAD_PRIORITY_BELOW_NORMAL 2
470 #define THREAD_PRIORITY_NORMAL 0
471 #define THREAD_PRIORITY_ABOVE_NORMAL 0
473 inline void SetThreadPriority(int nPriority)
475 // It's unclear if it's even possible to change thread priorities on Linux,
476 // but we really and truly need it for the generation threads.
478 setpriority(PRIO_THREAD, 0, nPriority);
480 setpriority(PRIO_PROCESS, 0, nPriority);
484 inline void ExitThread(size_t nExitCode)
486 pthread_exit((void*)nExitCode);
490 void RenameThread(const char* name);
492 inline uint32_t ByteReverse(uint32_t value)
494 value = ((value & 0xFF00FF00) >> 8) | ((value & 0x00FF00FF) << 8);
495 return (value<<16) | (value>>16);