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.
10 #include <sys/types.h>
12 #include <sys/resource.h>
24 #include <boost/thread.hpp>
25 #include <boost/filesystem.hpp>
26 #include <boost/filesystem/path.hpp>
27 #include <boost/date_time/gregorian/gregorian_types.hpp>
28 #include <boost/date_time/posix_time/posix_time_types.hpp>
33 #if defined(__USE_MINGW_ANSI_STDIO)
34 #undef __USE_MINGW_ANSI_STDIO // This constant forces MinGW to conduct stupid behavior
39 static const int32_t nOneHour = 60 * 60;
40 static const int32_t nOneDay = 24 * 60 * 60;
41 static const int64_t nOneWeek = 7 * 24 * 60 * 60;
43 static const int64_t COIN = 1000000;
44 static const int64_t CENT = 10000;
46 #define BEGIN(a) ((char*)&(a))
47 #define END(a) ((char*)&((&(a))[1]))
48 #define UBEGIN(a) ((unsigned char*)&(a))
49 #define UEND(a) ((unsigned char*)&((&(a))[1]))
50 #define ARRAYLEN(array) (sizeof(array)/sizeof((array)[0]))
52 #define UVOIDBEGIN(a) ((void*)&(a))
53 #define CVOIDBEGIN(a) ((const void*)&(a))
54 #define UINTBEGIN(a) ((uint32_t*)&(a))
55 #define CUINTBEGIN(a) ((const uint32_t*)&(a))
57 #ifndef THROW_WITH_STACKTRACE
58 #define THROW_WITH_STACKTRACE(exception) \
66 #if defined(_MSC_VER) || defined(__MSVCRT__)
67 /* Silence compiler warnings on Windows
68 related to MinGWs inttypes.h */
79 /* Format characters for (s)size_t and ptrdiff_t */
80 #if defined(_MSC_VER) || defined(__MSVCRT__)
81 /* (s)size_t and ptrdiff_t have the same size specifier in MSVC:
82 http://msdn.microsoft.com/en-us/library/tcxf1dw6%28v=vs.100%29.aspx
90 #else /* C99 standard */
99 // This is needed because the foreach macro can't get over the comma in pair<t1, t2>
100 #define PAIRTYPE(t1, t2) std::pair<t1, t2>
102 // Align by increasing pointer, must have extra space at end of buffer
103 template <size_t nBytes, typename T>
112 u.n = (u.n + (nBytes-1)) & ~(nBytes-1);
117 #define MSG_NOSIGNAL 0
118 #define MSG_DONTWAIT 0
125 #define MAX_PATH 1024
126 inline void Sleep(int64_t n)
128 /*Boost has a year 2038 problem— if the request sleep time is past epoch+2^31 seconds the sleep returns instantly.
129 So we clamp our sleeps here to 10 years and hope that boost is fixed by 2028.*/
130 boost::thread::sleep(boost::get_system_time() + boost::posix_time::milliseconds(n>315576000000LL?315576000000LL:n));
134 /* This GNU C extension enables the compiler to check the format string against the parameters provided.
135 * X is the number of the "format string" parameter, and Y is the number of the first variadic parameter.
136 * Parameters count from 1.
139 #define ATTR_WARN_PRINTF(X,Y) __attribute__((format(printf,X,Y)))
141 #define ATTR_WARN_PRINTF(X,Y)
151 extern std::map<std::string, std::string> mapArgs;
152 extern std::map<std::string, std::vector<std::string> > mapMultiArgs;
154 extern bool fDebugNet;
155 extern bool fPrintToConsole;
156 extern bool fPrintToDebugger;
157 extern bool fRequestShutdown;
158 extern bool fShutdown;
161 extern bool fCommandLine;
162 extern std::string strMiscWarning;
163 extern bool fTestNet;
164 extern bool fNoListen;
165 extern bool fLogTimestamps;
166 extern bool fReopenDebugLog;
169 void RandAddSeedPerfmon();
170 int ATTR_WARN_PRINTF(1,2) OutputDebugStringF(const char* pszFormat, ...);
173 Rationale for the real_strprintf / strprintf construction:
174 It is not allowed to use va_start with a pass-by-reference argument.
175 (C++ standard, 18.7, paragraph 3). Use a dummy argument to work around this, and use a
176 macro to keep similar semantics.
179 /** Overload strprintf for char*, so that GCC format type warnings can be given */
180 std::string ATTR_WARN_PRINTF(1,3) real_strprintf(const char *format, int dummy, ...);
181 /** Overload strprintf for std::string, to be able to use it with _ (translation).
182 * This will not support GCC format type warnings (-Wformat) so be careful.
184 std::string real_strprintf(const std::string &format, int dummy, ...);
185 #define strprintf(format, ...) real_strprintf(format, 0, __VA_ARGS__)
186 std::string vstrprintf(const char *format, va_list ap);
188 bool ATTR_WARN_PRINTF(1,2) error(const char *format, ...);
190 /* Redefine printf so that it directs output to debug.log
192 * Do this *after* defining the other printf-like functions, because otherwise the
193 * __attribute__((format(printf,X,Y))) gets expanded to __attribute__((format(OutputDebugStringF,X,Y)))
194 * which confuses gcc.
196 #define printf OutputDebugStringF
198 void LogException(std::exception* pex, const char* pszThread);
199 void PrintException(std::exception* pex, const char* pszThread);
200 void PrintExceptionContinue(std::exception* pex, const char* pszThread);
201 void ParseString(const std::string& str, char c, std::vector<std::string>& v);
202 std::string FormatMoney(int64_t n, bool fPlus=false);
203 bool ParseMoney(const std::string& str, int64_t& nRet);
204 bool ParseMoney(const char* pszIn, int64_t& nRet);
205 std::vector<unsigned char> ParseHex(const char* psz);
206 std::vector<unsigned char> ParseHex(const std::string& str);
207 bool IsHex(const std::string& str);
208 std::vector<unsigned char> DecodeBase64(const char* p, bool* pfInvalid = NULL);
209 std::string DecodeBase64(const std::string& str);
210 std::string EncodeBase64(const unsigned char* pch, size_t len);
211 std::string EncodeBase64(const std::string& str);
212 std::vector<unsigned char> DecodeBase32(const char* p, bool* pfInvalid = NULL);
213 std::string DecodeBase32(const std::string& str);
214 std::string EncodeBase32(const unsigned char* pch, size_t len);
215 std::string EncodeBase32(const std::string& str);
216 std::string EncodeDumpTime(int64_t nTime);
217 int64_t DecodeDumpTime(const std::string& s);
218 std::string EncodeDumpString(const std::string &str);
219 std::string DecodeDumpString(const std::string &str);
220 void ParseParameters(int argc, const char*const argv[]);
221 bool WildcardMatch(const char* psz, const char* mask);
222 bool WildcardMatch(const std::string& str, const std::string& mask);
223 void FileCommit(FILE *fileout);
224 int GetFilesize(FILE* file);
225 bool RenameOver(boost::filesystem::path src, boost::filesystem::path dest);
226 boost::filesystem::path GetDefaultDataDir();
227 const boost::filesystem::path &GetDataDir(bool fNetSpecific = true);
228 boost::filesystem::path GetConfigFile();
229 boost::filesystem::path GetPidFile();
231 void CreatePidFile(const boost::filesystem::path &path, pid_t pid);
233 void ReadConfigFile(std::map<std::string, std::string>& mapSettingsRet, std::map<std::string, std::vector<std::string> >& mapMultiSettingsRet);
235 boost::filesystem::path GetSpecialFolderPath(int nFolder, bool fCreate = true);
237 void ShrinkDebugFile();
238 int GetRandInt(int nMax);
239 uint64_t GetRand(uint64_t nMax);
241 int64_t GetTimeMillis();
242 int64_t GetTimeMicros();
243 std::string FormatFullVersion();
244 std::string FormatSubVersion(const std::string& name, int nClientVersion, const std::vector<std::string>& comments);
245 void runCommand(std::string strCommand);
255 inline std::string i64tostr(int64_t n)
257 return strprintf("%" PRId64, n);
260 inline std::string itostr(int n)
262 return strprintf("%d", n);
265 inline int64_t atoi64(const char* psz)
270 return strtoll(psz, NULL, 10);
274 inline int64_t atoi64(const std::string& str)
277 return _atoi64(str.c_str());
279 return strtoll(str.c_str(), NULL, 10);
283 inline int32_t strtol(const char* psz)
285 return strtol(psz, NULL, 10);
288 inline int32_t strtol(const std::string& str)
290 return strtol(str.c_str(), NULL, 10);
293 inline uint32_t strtoul(const char* psz)
295 return strtoul(psz, NULL, 10);
298 inline uint32_t strtoul(const std::string& str)
300 return strtoul(str.c_str(), NULL, 10);
303 inline int atoi(const std::string& str)
305 return atoi(str.c_str());
308 inline int roundint(double d)
310 return (int)(d > 0 ? d + 0.5 : d - 0.5);
313 inline int64_t roundint64(double d)
315 return (int64_t)(d > 0 ? d + 0.5 : d - 0.5);
318 inline int64_t abs64(int64_t n)
320 return (n >= 0 ? n : -n);
323 inline std::string leftTrim(std::string src, char chr)
325 std::string::size_type pos = src.find_first_not_of(chr, 0);
334 std::string HexStr(const T itbegin, const T itend, bool fSpaces=false)
337 static const char hexmap[16] = { '0', '1', '2', '3', '4', '5', '6', '7',
338 '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
339 rv.reserve((itend-itbegin)*3);
340 for(T it = itbegin; it < itend; ++it)
342 unsigned char val = (unsigned char)(*it);
343 if(fSpaces && it != itbegin)
345 rv.push_back(hexmap[val>>4]);
346 rv.push_back(hexmap[val&15]);
352 inline std::string HexStr(const std::vector<unsigned char>& vch, bool fSpaces=false)
354 return HexStr(vch.begin(), vch.end(), fSpaces);
358 void PrintHex(const T pbegin, const T pend, const char* pszFormat="%s", bool fSpaces=true)
360 printf(pszFormat, HexStr(pbegin, pend, fSpaces).c_str());
363 inline void PrintHex(const std::vector<unsigned char>& vch, const char* pszFormat="%s", bool fSpaces=true)
365 printf(pszFormat, HexStr(vch, fSpaces).c_str());
368 inline int64_t GetPerformanceCounter()
370 int64_t nCounter = 0;
372 QueryPerformanceCounter((LARGE_INTEGER*)&nCounter);
375 gettimeofday(&t, NULL);
376 nCounter = (int64_t) t.tv_sec * 1000000 + t.tv_usec;
381 inline int64_t GetTimeMillis()
383 return (boost::posix_time::microsec_clock::universal_time() -
384 boost::posix_time::ptime(boost::gregorian::date(1970,1,1))).total_milliseconds();
387 inline int64_t GetTimeMicros()
389 return (boost::posix_time::microsec_clock::universal_time() -
390 boost::posix_time::ptime(boost::gregorian::date(1970,1,1))).total_microseconds();
393 std::string DateTimeStrFormat(const char* pszFormat, int64_t nTime);
395 static const std::string strTimestampFormat = "%Y-%m-%d %H:%M:%S UTC";
396 inline std::string DateTimeStrFormat(int64_t nTime)
398 return DateTimeStrFormat(strTimestampFormat.c_str(), nTime);
403 void skipspaces(T& it)
409 inline bool IsSwitchChar(char c)
412 return c == '-' || c == '/';
419 * Return string argument or default value
421 * @param strArg Argument to get (e.g. "-foo")
422 * @param default (e.g. "1")
423 * @return command-line argument or default value
425 std::string GetArg(const std::string& strArg, const std::string& strDefault);
428 * Return 64-bit integer argument or default value
430 * @param strArg Argument to get (e.g. "-foo")
431 * @param default (e.g. 1)
432 * @return command-line argument (0 if invalid number) or default value
434 int64_t GetArg(const std::string& strArg, int64_t nDefault);
437 * Return 32-bit integer argument or default value
439 * @param strArg Argument to get (e.g. "-foo")
440 * @param default (e.g. 1)
441 * @return command-line argument (0 if invalid number) or default value
443 int32_t GetArgInt(const std::string& strArg, int32_t nDefault);
446 * Return 32-bit unsigned integer argument or default value
448 * @param strArg Argument to get (e.g. "-foo")
449 * @param default (e.g. 1)
450 * @return command-line argument (0 if invalid number) or default value
452 uint32_t GetArgUInt(const std::string& strArg, uint32_t nDefault);
455 * Return boolean argument or default value
457 * @param strArg Argument to get (e.g. "-foo")
458 * @param default (true or false)
459 * @return command-line argument or default value
461 bool GetBoolArg(const std::string& strArg, bool fDefault=false);
464 * Set an argument if it doesn't already have a value
466 * @param strArg Argument to set (e.g. "-foo")
467 * @param strValue Value (e.g. "1")
468 * @return true if argument gets set, false if it already had a value
470 bool SoftSetArg(const std::string& strArg, const std::string& strValue);
473 * Set a boolean argument if it doesn't already have a value
475 * @param strArg Argument to set (e.g. "-foo")
476 * @param fValue Value (e.g. false)
477 * @return true if argument gets set, false if it already had a value
479 bool SoftSetBoolArg(const std::string& strArg, bool fValue);
482 * Timing-attack-resistant comparison.
483 * Takes time proportional to length
486 template <typename T>
487 bool TimingResistantEqual(const T& a, const T& b)
489 if (b.size() == 0) return a.size() == 0;
490 size_t accumulator = a.size() ^ b.size();
491 for (size_t i = 0; i < a.size(); i++)
492 accumulator |= a[i] ^ b[i%b.size()];
493 return accumulator == 0;
496 bool NewThread(void(*pfn)(void*), void* parg);
499 inline void SetThreadPriority(int nPriority)
501 SetThreadPriority(GetCurrentThread(), nPriority);
505 #define THREAD_PRIORITY_LOWEST PRIO_MAX
506 #define THREAD_PRIORITY_BELOW_NORMAL 2
507 #define THREAD_PRIORITY_NORMAL 0
508 #define THREAD_PRIORITY_ABOVE_NORMAL 0
510 inline void SetThreadPriority(int nPriority)
512 // It's unclear if it's even possible to change thread priorities on Linux,
513 // but we really and truly need it for the generation threads.
515 setpriority(PRIO_THREAD, 0, nPriority);
517 setpriority(PRIO_PROCESS, 0, nPriority);
521 inline void ExitThread(size_t nExitCode)
523 pthread_exit((void*)nExitCode);
527 void RenameThread(const char* name);
529 inline uint32_t ByteReverse(uint32_t value)
531 value = ((value & 0xFF00FF00) >> 8) | ((value & 0x00FF00FF) << 8);
532 return (value<<16) | (value>>16);