250 lines
8 KiB
C++
250 lines
8 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2015 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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/**
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* Server/client environment: argument handling, config file parsing,
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* logging, thread wrappers
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*/
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#ifndef BITCOIN_UTIL_H
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#define BITCOIN_UTIL_H
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#if defined(HAVE_CONFIG_H)
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#include "config/bitcoin-config.h"
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#endif
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#include "compat.h"
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#include "tinyformat.h"
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#include "utiltime.h"
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#include <exception>
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#include <map>
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#include <stdint.h>
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#include <string>
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#include <vector>
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#include <boost/filesystem/path.hpp>
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#include <boost/signals2/signal.hpp>
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#include <boost/thread/exceptions.hpp>
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static const bool DEFAULT_LOGTIMEMICROS = false;
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static const bool DEFAULT_LOGIPS = false;
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static const bool DEFAULT_LOGTIMESTAMPS = true;
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/** Signals for translation. */
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class CTranslationInterface
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{
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public:
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/** Translate a message to the native language of the user. */
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boost::signals2::signal<std::string (const char* psz)> Translate;
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};
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extern std::map<std::string, std::string> mapArgs;
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extern std::map<std::string, std::vector<std::string> > mapMultiArgs;
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extern bool fDebug;
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extern bool fPrintToConsole;
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extern bool fPrintToDebugLog;
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extern bool fServer;
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extern std::string strMiscWarning;
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extern bool fLogTimestamps;
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extern bool fLogTimeMicros;
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extern bool fLogIPs;
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extern volatile bool fReopenDebugLog;
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extern CTranslationInterface translationInterface;
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extern const char * const BITCOIN_CONF_FILENAME;
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extern const char * const BITCOIN_PID_FILENAME;
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/**
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* Translation function: Call Translate signal on UI interface, which returns a boost::optional result.
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* If no translation slot is registered, nothing is returned, and simply return the input.
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*/
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inline std::string _(const char* psz)
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{
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boost::optional<std::string> rv = translationInterface.Translate(psz);
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return rv ? (*rv) : psz;
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}
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void SetupEnvironment();
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bool SetupNetworking();
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/** Return true if log accepts specified category */
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bool LogAcceptCategory(const char* category);
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/** Send a string to the log output */
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int LogPrintStr(const std::string &str);
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#define LogPrintf(...) LogPrint(NULL, __VA_ARGS__)
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/**
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* When we switch to C++11, this can be switched to variadic templates instead
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* of this macro-based construction (see tinyformat.h).
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*/
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#define MAKE_ERROR_AND_LOG_FUNC(n) \
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/** Print to debug.log if -debug=category switch is given OR category is NULL. */ \
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template<TINYFORMAT_ARGTYPES(n)> \
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static inline int LogPrint(const char* category, const char* format, TINYFORMAT_VARARGS(n)) \
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{ \
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if(!LogAcceptCategory(category)) return 0; \
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return LogPrintStr(tfm::format(format, TINYFORMAT_PASSARGS(n))); \
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} \
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/** Log error and return false */ \
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template<TINYFORMAT_ARGTYPES(n)> \
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static inline bool error(const char* format, TINYFORMAT_VARARGS(n)) \
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{ \
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LogPrintStr("ERROR: " + tfm::format(format, TINYFORMAT_PASSARGS(n)) + "\n"); \
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return false; \
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}
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TINYFORMAT_FOREACH_ARGNUM(MAKE_ERROR_AND_LOG_FUNC)
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/**
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* Zero-arg versions of logging and error, these are not covered by
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* TINYFORMAT_FOREACH_ARGNUM
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*/
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static inline int LogPrint(const char* category, const char* format)
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{
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if(!LogAcceptCategory(category)) return 0;
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return LogPrintStr(format);
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}
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static inline bool error(const char* format)
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{
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LogPrintStr(std::string("ERROR: ") + format + "\n");
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return false;
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}
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void PrintExceptionContinue(const std::exception *pex, const char* pszThread);
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void ParseParameters(int argc, const char*const argv[]);
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void FileCommit(FILE *fileout);
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bool TruncateFile(FILE *file, unsigned int length);
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int RaiseFileDescriptorLimit(int nMinFD);
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void AllocateFileRange(FILE *file, unsigned int offset, unsigned int length);
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bool RenameOver(boost::filesystem::path src, boost::filesystem::path dest);
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bool TryCreateDirectory(const boost::filesystem::path& p);
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boost::filesystem::path GetDefaultDataDir();
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const boost::filesystem::path &GetDataDir(bool fNetSpecific = true);
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void ClearDatadirCache();
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boost::filesystem::path GetConfigFile();
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#ifndef WIN32
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boost::filesystem::path GetPidFile();
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void CreatePidFile(const boost::filesystem::path &path, pid_t pid);
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#endif
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void ReadConfigFile(std::map<std::string, std::string>& mapSettingsRet, std::map<std::string, std::vector<std::string> >& mapMultiSettingsRet);
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#ifdef WIN32
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boost::filesystem::path GetSpecialFolderPath(int nFolder, bool fCreate = true);
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#endif
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boost::filesystem::path GetTempPath();
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void OpenDebugLog();
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void ShrinkDebugFile();
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void runCommand(const std::string& strCommand);
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inline bool IsSwitchChar(char c)
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{
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#ifdef WIN32
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return c == '-' || c == '/';
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#else
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return c == '-';
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#endif
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}
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/**
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* Return string argument or default value
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*
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* @param strArg Argument to get (e.g. "-foo")
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* @param default (e.g. "1")
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* @return command-line argument or default value
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*/
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std::string GetArg(const std::string& strArg, const std::string& strDefault);
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/**
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* Return integer argument or default value
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*
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* @param strArg Argument to get (e.g. "-foo")
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* @param default (e.g. 1)
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* @return command-line argument (0 if invalid number) or default value
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*/
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int64_t GetArg(const std::string& strArg, int64_t nDefault);
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/**
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* Return boolean argument or default value
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*
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* @param strArg Argument to get (e.g. "-foo")
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* @param default (true or false)
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* @return command-line argument or default value
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*/
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bool GetBoolArg(const std::string& strArg, bool fDefault);
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/**
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* Set an argument if it doesn't already have a value
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*
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* @param strArg Argument to set (e.g. "-foo")
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* @param strValue Value (e.g. "1")
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* @return true if argument gets set, false if it already had a value
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*/
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bool SoftSetArg(const std::string& strArg, const std::string& strValue);
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/**
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* Set a boolean argument if it doesn't already have a value
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*
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* @param strArg Argument to set (e.g. "-foo")
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* @param fValue Value (e.g. false)
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* @return true if argument gets set, false if it already had a value
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*/
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bool SoftSetBoolArg(const std::string& strArg, bool fValue);
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/**
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* Format a string to be used as group of options in help messages
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*
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* @param message Group name (e.g. "RPC server options:")
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* @return the formatted string
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*/
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std::string HelpMessageGroup(const std::string& message);
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/**
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* Format a string to be used as option description in help messages
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*
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* @param option Option message (e.g. "-rpcuser=<user>")
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* @param message Option description (e.g. "Username for JSON-RPC connections")
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* @return the formatted string
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*/
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std::string HelpMessageOpt(const std::string& option, const std::string& message);
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/**
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* Return the number of physical cores available on the current system.
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* @note This does not count virtual cores, such as those provided by HyperThreading
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* when boost is newer than 1.56.
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*/
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int GetNumCores();
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void SetThreadPriority(int nPriority);
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void RenameThread(const char* name);
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/**
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* .. and a wrapper that just calls func once
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*/
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template <typename Callable> void TraceThread(const char* name, Callable func)
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{
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std::string s = strprintf("bitcoin-%s", name);
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RenameThread(s.c_str());
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try
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{
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LogPrintf("%s thread start\n", name);
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func();
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LogPrintf("%s thread exit\n", name);
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}
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catch (const boost::thread_interrupted&)
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{
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LogPrintf("%s thread interrupt\n", name);
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throw;
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}
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catch (const std::exception& e) {
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PrintExceptionContinue(&e, name);
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throw;
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}
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catch (...) {
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PrintExceptionContinue(NULL, name);
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throw;
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}
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}
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#endif // BITCOIN_UTIL_H
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