diff options
Diffstat (limited to 'src/init.cpp')
| -rw-r--r-- | src/init.cpp | 39 |
1 files changed, 35 insertions, 4 deletions
diff --git a/src/init.cpp b/src/init.cpp index 0013319ad5..8b831a726f 100644 --- a/src/init.cpp +++ b/src/init.cpp @@ -53,6 +53,8 @@ #include <stdio.h> #ifndef WIN32 +#include <attributes.h> +#include <cerrno> #include <signal.h> #include <sys/stat.h> #endif @@ -92,6 +94,30 @@ std::unique_ptr<BanMan> g_banman; static const char* FEE_ESTIMATES_FILENAME="fee_estimates.dat"; +/** + * The PID file facilities. + */ +#ifndef WIN32 +static const char* BITCOIN_PID_FILENAME = "bitcoind.pid"; + +static fs::path GetPidFile() +{ + return AbsPathForConfigVal(fs::path(gArgs.GetArg("-pid", BITCOIN_PID_FILENAME))); +} + +NODISCARD static bool CreatePidFile() +{ + FILE* file = fsbridge::fopen(GetPidFile(), "w"); + if (file) { + fprintf(file, "%d\n", getpid()); + fclose(file); + return true; + } else { + return InitError(strprintf(_("Unable to create the PID file '%s': %s"), GetPidFile().string(), std::strerror(errno))); + } +} +#endif + ////////////////////////////////////////////////////////////////////////////// // // Shutdown @@ -262,9 +288,11 @@ void Shutdown(InitInterfaces& interfaces) #ifndef WIN32 try { - fs::remove(GetPidFile()); + if (!fs::remove(GetPidFile())) { + LogPrintf("%s: Unable to remove PID file: File does not exist\n", __func__); + } } catch (const fs::filesystem_error& e) { - LogPrintf("%s: Unable to remove pidfile: %s\n", __func__, e.what()); + LogPrintf("%s: Unable to remove PID file: %s\n", __func__, e.what()); } #endif interfaces.chain_clients.clear(); @@ -352,7 +380,7 @@ void SetupServerArgs() gArgs.AddArg("-conf=<file>", strprintf("Specify configuration file. Relative paths will be prefixed by datadir location. (default: %s)", BITCOIN_CONF_FILENAME), false, OptionsCategory::OPTIONS); gArgs.AddArg("-datadir=<dir>", "Specify data directory", false, OptionsCategory::OPTIONS); gArgs.AddArg("-dbbatchsize", strprintf("Maximum database write batch size in bytes (default: %u)", nDefaultDbBatchSize), true, OptionsCategory::OPTIONS); - gArgs.AddArg("-dbcache=<n>", strprintf("Set database cache size in MiB (%d to %d, default: %d)", nMinDbCache, nMaxDbCache, nDefaultDbCache), false, OptionsCategory::OPTIONS); + gArgs.AddArg("-dbcache=<n>", strprintf("Maximum database cache size <n> MiB (%d to %d, default: %d). In addition, unused mempool memory is shared for this cache (see -maxmempool).", nMinDbCache, nMaxDbCache, nDefaultDbCache), false, OptionsCategory::OPTIONS); gArgs.AddArg("-debuglogfile=<file>", strprintf("Specify location of debug log file. Relative paths will be prefixed by a net-specific datadir location. (-nodebuglogfile to disable; default: %s)", DEFAULT_DEBUGLOGFILE), false, OptionsCategory::OPTIONS); gArgs.AddArg("-feefilter", strprintf("Tell other nodes to filter invs to us by our mempool min fee (default: %u)", DEFAULT_FEEFILTER), true, OptionsCategory::OPTIONS); gArgs.AddArg("-includeconf=<file>", "Specify additional configuration file, relative to the -datadir path (only useable from configuration file, not command line)", false, OptionsCategory::OPTIONS); @@ -1201,7 +1229,10 @@ bool AppInitMain(InitInterfaces& interfaces) const CChainParams& chainparams = Params(); // ********************************************************* Step 4a: application initialization #ifndef WIN32 - CreatePidFile(GetPidFile(), getpid()); + if (!CreatePidFile()) { + // Detailed error printed inside CreatePidFile(). + return false; + } #endif if (LogInstance().m_print_to_file) { if (gArgs.GetBoolArg("-shrinkdebugfile", LogInstance().DefaultShrinkDebugFile())) { |