diff --git a/src/init.cpp b/src/init.cpp index 935686299..871a58526 100644 --- a/src/init.cpp +++ b/src/init.cpp @@ -342,6 +342,7 @@ std::string HelpMessage(HelpMessageMode mode) if (showDebug) strUsage += HelpMessageOpt("-feefilter", strprintf("Tell other nodes to filter invs to us by our mempool min fee (default: %u)", DEFAULT_FEEFILTER)); strUsage += HelpMessageOpt("-loadblock=", _("Imports blocks from external blk000??.dat file on startup")); + strUsage += HelpMessageOpt("-debuglogfile=", strprintf(_("Specify location of debug log file: this can be an absolute path or a path relative to the data directory (default: %s)"), DEFAULT_DEBUGLOGFILE)); strUsage += HelpMessageOpt("-maxorphantx=", strprintf(_("Keep at most unconnectable transactions in memory (default: %u)"), DEFAULT_MAX_ORPHAN_TRANSACTIONS)); strUsage += HelpMessageOpt("-maxmempool=", strprintf(_("Keep the transaction memory pool below megabytes (default: %u)"), DEFAULT_MAX_MEMPOOL_SIZE)); strUsage += HelpMessageOpt("-mempoolexpiry=", strprintf(_("Do not keep transactions in the mempool longer than hours (default: %u)"), DEFAULT_MEMPOOL_EXPIRY)); @@ -1209,8 +1210,11 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler) ShrinkDebugFile(); } - if (fPrintToDebugLog) - OpenDebugLog(); + if (fPrintToDebugLog) { + if (!OpenDebugLog()) { + return InitError(strprintf("Could not open debug log file %s", GetDebugLogPath().string())); + } + } if (!fLogTimestamps) LogPrintf("Startup time: %s\n", DateTimeStrFormat("%Y-%m-%d %H:%M:%S", GetTime())); diff --git a/src/util.cpp b/src/util.cpp index b2023b832..6631c236f 100644 --- a/src/util.cpp +++ b/src/util.cpp @@ -89,6 +89,7 @@ const int64_t nStartupTime = GetTime(); const char * const BITCOIN_CONF_FILENAME = "bitcoin.conf"; const char * const BITCOIN_PID_FILENAME = "bitcoind.pid"; +const char * const DEFAULT_DEBUGLOGFILE = "debug.log"; ArgsManager gArgs; bool fPrintToConsole = false; @@ -189,26 +190,40 @@ static void DebugPrintInit() vMsgsBeforeOpenLog = new std::list; } -void OpenDebugLog() +fs::path GetDebugLogPath() +{ + fs::path logfile(gArgs.GetArg("-debuglogfile", DEFAULT_DEBUGLOGFILE)); + if (logfile.is_absolute()) { + return logfile; + } else { + return GetDataDir() / logfile; + } +} + +bool OpenDebugLog() { boost::call_once(&DebugPrintInit, debugPrintInitFlag); boost::mutex::scoped_lock scoped_lock(*mutexDebugLog); assert(fileout == nullptr); assert(vMsgsBeforeOpenLog); - fs::path pathDebug = GetDataDir() / "debug.log"; + fs::path pathDebug = GetDebugLogPath(); + fileout = fsbridge::fopen(pathDebug, "a"); - if (fileout) { - setbuf(fileout, nullptr); // unbuffered - // dump buffered messages from before we opened the log - while (!vMsgsBeforeOpenLog->empty()) { - FileWriteStr(vMsgsBeforeOpenLog->front(), fileout); - vMsgsBeforeOpenLog->pop_front(); - } + if (!fileout) { + return false; + } + + setbuf(fileout, nullptr); // unbuffered + // dump buffered messages from before we opened the log + while (!vMsgsBeforeOpenLog->empty()) { + FileWriteStr(vMsgsBeforeOpenLog->front(), fileout); + vMsgsBeforeOpenLog->pop_front(); } delete vMsgsBeforeOpenLog; vMsgsBeforeOpenLog = nullptr; + return true; } struct CLogCategoryDesc @@ -355,7 +370,7 @@ int LogPrintStr(const std::string &str) // reopen the log file, if requested if (fReopenDebugLog) { fReopenDebugLog = false; - fs::path pathDebug = GetDataDir() / "debug.log"; + fs::path pathDebug = GetDebugLogPath(); if (fsbridge::freopen(pathDebug,"a",fileout) != nullptr) setbuf(fileout, nullptr); // unbuffered } @@ -774,7 +789,7 @@ void ShrinkDebugFile() // Amount of debug.log to save at end when shrinking (must fit in memory) constexpr size_t RECENT_DEBUG_HISTORY_SIZE = 10 * 1000000; // Scroll debug.log if it's getting too big - fs::path pathLog = GetDataDir() / "debug.log"; + fs::path pathLog = GetDebugLogPath(); FILE* file = fsbridge::fopen(pathLog, "r"); // If debug.log file is more than 10% bigger the RECENT_DEBUG_HISTORY_SIZE // trim it down by saving only the last RECENT_DEBUG_HISTORY_SIZE bytes diff --git a/src/util.h b/src/util.h index 08de43d29..6687b865d 100644 --- a/src/util.h +++ b/src/util.h @@ -36,6 +36,7 @@ int64_t GetStartupTime(); static const bool DEFAULT_LOGTIMEMICROS = false; static const bool DEFAULT_LOGIPS = false; static const bool DEFAULT_LOGTIMESTAMPS = true; +extern const char * const DEFAULT_DEBUGLOGFILE; /** Signals for translation. */ class CTranslationInterface @@ -180,7 +181,8 @@ void CreatePidFile(const fs::path &path, pid_t pid); #ifdef WIN32 fs::path GetSpecialFolderPath(int nFolder, bool fCreate = true); #endif -void OpenDebugLog(); +fs::path GetDebugLogPath(); +bool OpenDebugLog(); void ShrinkDebugFile(); void runCommand(const std::string& strCommand);