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6b3bb3d9ba
This changes the logging categories to boolean flags instead of strings. This simplifies the acceptance testing by avoiding accessing a scoped static thread local pointer to a thread local set of strings. It eliminates the only use of boost::thread_specific_ptr outside of lockorder debugging. This change allows log entries to be directed to multiple categories and makes it easy to change the logging flags at runtime (e.g. via an RPC, though that isn't done by this commit.) It also eliminates the fDebug global. Configuration of unknown logging categories now produces a warning.
287 lines
8.4 KiB
C++
287 lines
8.4 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2016 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 <atomic>
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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 const std::map<std::string, std::vector<std::string> >& mapMultiArgs;
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extern bool fPrintToConsole;
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extern bool fPrintToDebugLog;
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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 std::atomic<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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extern std::atomic<uint32_t> logCategories;
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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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namespace BCLog {
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enum LogFlags : uint32_t {
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NONE = 0,
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NET = (1 << 0),
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TOR = (1 << 1),
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MEMPOOL = (1 << 2),
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HTTP = (1 << 3),
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BENCH = (1 << 4),
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ZMQ = (1 << 5),
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DB = (1 << 6),
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RPC = (1 << 7),
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ESTIMATEFEE = (1 << 8),
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ADDRMAN = (1 << 9),
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SELECTCOINS = (1 << 10),
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REINDEX = (1 << 11),
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CMPCTBLOCK = (1 << 12),
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RAND = (1 << 13),
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PRUNE = (1 << 14),
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PROXY = (1 << 15),
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MEMPOOLREJ = (1 << 16),
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LIBEVENT = (1 << 17),
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COINDB = (1 << 18),
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QT = (1 << 19),
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LEVELDB = (1 << 20),
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ALL = ~(uint32_t)0,
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};
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}
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/** Return true if log accepts specified category */
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static inline bool LogAcceptCategory(uint32_t category)
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{
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return (logCategories.load(std::memory_order_relaxed) & category) != 0;
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}
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/** Returns a string with the supported log categories */
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std::string ListLogCategories();
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/** Return true if str parses as a log category and set the flags in f */
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bool GetLogCategory(uint32_t *f, const std::string *str);
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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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/** Get format string from VA_ARGS for error reporting */
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template<typename... Args> std::string FormatStringFromLogArgs(const char *fmt, const Args&... args) { return fmt; }
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#define LogPrintf(...) do { \
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std::string _log_msg_; /* Unlikely name to avoid shadowing variables */ \
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try { \
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_log_msg_ = tfm::format(__VA_ARGS__); \
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} catch (tinyformat::format_error &fmterr) { \
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/* Original format string will have newline so don't add one here */ \
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_log_msg_ = "Error \"" + std::string(fmterr.what()) + "\" while formatting log message: " + FormatStringFromLogArgs(__VA_ARGS__); \
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} \
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LogPrintStr(_log_msg_); \
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} while(0)
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#define LogPrint(category, ...) do { \
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if (LogAcceptCategory((category))) { \
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LogPrintf(__VA_ARGS__); \
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} \
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} while(0)
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template<typename... Args>
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bool error(const char* fmt, const Args&... args)
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{
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LogPrintStr("ERROR: " + tfm::format(fmt, args...) + "\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 *file);
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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(const std::string& confPath);
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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(const std::string& confPath);
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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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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 true if the given argument has been manually set
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*
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* @param strArg Argument to get (e.g. "-foo")
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* @return true if the argument has been set
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*/
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bool IsArgSet(const std::string& strArg);
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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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// Forces a arg setting, used only in testing
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void ForceSetArg(const std::string& strArg, const std::string& strValue);
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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 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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std::string CopyrightHolders(const std::string& strPrefix);
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#endif // BITCOIN_UTIL_H
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