From 0cc8b6bc44bea29e24fa4e13d8a9bbe4f1483680 Mon Sep 17 00:00:00 2001 From: "Wladimir J. van der Laan" Date: Tue, 25 Oct 2016 11:34:27 +0200 Subject: [PATCH] init: Split up AppInit2 into multiple phases This allows doing some of the steps before e.g. daemonization and some fater. --- src/bitcoind.cpp | 26 ++++++++++++++++++++----- src/init.cpp | 48 ++++++++++++++++++++++++++++++++-------------- src/init.h | 25 +++++++++++++++++++++++- src/qt/bitcoin.cpp | 17 +++++++++++++++- 4 files changed, 95 insertions(+), 21 deletions(-) diff --git a/src/bitcoind.cpp b/src/bitcoind.cpp index 351463c25..a89b8cd4e 100644 --- a/src/bitcoind.cpp +++ b/src/bitcoind.cpp @@ -128,6 +128,26 @@ bool AppInit(int argc, char* argv[]) fprintf(stderr, "Error: There is no RPC client functionality in bitcoind anymore. Use the bitcoin-cli utility instead.\n"); exit(1); } + // -server defaults to true for bitcoind but not for the GUI so do this here + SoftSetBoolArg("-server", true); + // Set this early so that parameter interactions go to console + InitLogging(); + InitParameterInteraction(); + if (!AppInitBasicSetup()) + { + // InitError will have been called with detailed error, which ends up on console + exit(1); + } + if (!AppInitParameterInteraction()) + { + // InitError will have been called with detailed error, which ends up on console + exit(1); + } + if (!AppInitSanityChecks()) + { + // InitError will have been called with detailed error, which ends up on console + exit(1); + } if (GetBoolArg("-daemon", false)) { #if HAVE_DECL_DAEMON @@ -143,12 +163,8 @@ bool AppInit(int argc, char* argv[]) return false; #endif // HAVE_DECL_DAEMON } - SoftSetBoolArg("-server", true); - // Set this early so that parameter interactions go to console - InitLogging(); - InitParameterInteraction(); - fRet = AppInit2(threadGroup, scheduler); + fRet = AppInitMain(threadGroup, scheduler); } catch (const std::exception& e) { PrintExceptionContinue(&e, "AppInit()"); diff --git a/src/init.cpp b/src/init.cpp index e2f25eda7..4f435dc7c 100644 --- a/src/init.cpp +++ b/src/init.cpp @@ -788,10 +788,17 @@ void InitLogging() LogPrintf("Bitcoin version %s\n", FormatFullVersion()); } -/** Initialize bitcoin. - * @pre Parameters should be parsed and config file should be read. - */ -bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler) +namespace { // Variables internal to initialization process only + +ServiceFlags nRelevantServices = NODE_NETWORK; +int nMaxConnections; +int nUserMaxConnections; +int nFD; +ServiceFlags nLocalServices = NODE_NETWORK; + +} + +bool AppInitBasicSetup() { // ********************************************************* Step 1: setup #ifdef _MSC_VER @@ -843,9 +850,13 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler) // Ignore SIGPIPE, otherwise it will bring the daemon down if the client closes unexpectedly signal(SIGPIPE, SIG_IGN); #endif + return true; +} - // ********************************************************* Step 2: parameter interactions +bool AppInitParameterInteraction() +{ const CChainParams& chainparams = Params(); + // ********************************************************* Step 2: parameter interactions // also see: InitParameterInteraction() @@ -857,12 +868,12 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler) // Make sure enough file descriptors are available int nBind = std::max((int)mapArgs.count("-bind") + (int)mapArgs.count("-whitebind"), 1); - int nUserMaxConnections = GetArg("-maxconnections", DEFAULT_MAX_PEER_CONNECTIONS); - int nMaxConnections = std::max(nUserMaxConnections, 0); + nUserMaxConnections = GetArg("-maxconnections", DEFAULT_MAX_PEER_CONNECTIONS); + nMaxConnections = std::max(nUserMaxConnections, 0); // Trim requested connection counts, to fit into system limitations nMaxConnections = std::max(std::min(nMaxConnections, (int)(FD_SETSIZE - nBind - MIN_CORE_FILEDESCRIPTORS)), 0); - int nFD = RaiseFileDescriptorLimit(nMaxConnections + MIN_CORE_FILEDESCRIPTORS); + nFD = RaiseFileDescriptorLimit(nMaxConnections + MIN_CORE_FILEDESCRIPTORS); if (nFD < MIN_CORE_FILEDESCRIPTORS) return InitError(_("Not enough file descriptors available.")); nMaxConnections = std::min(nFD - MIN_CORE_FILEDESCRIPTORS, nMaxConnections); @@ -977,9 +988,6 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler) // Option to startup with mocktime set (used for regression testing): SetMockTime(GetArg("-mocktime", 0)); // SetMockTime(0) is a no-op - ServiceFlags nLocalServices = NODE_NETWORK; - ServiceFlags nRelevantServices = NODE_NETWORK; - if (GetBoolArg("-peerbloomfilters", DEFAULT_PEERBLOOMFILTERS)) nLocalServices = ServiceFlags(nLocalServices | NODE_BLOOM); @@ -1028,8 +1036,12 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler) } } } + return true; +} - // ********************************************************* Step 4: application initialization: dir lock, daemonize, pidfile, debug log +bool AppInitSanityChecks() +{ + // ********************************************************* Step 4: sanity checks // Initialize elliptic curve code ECC_Start(); @@ -1048,11 +1060,19 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler) try { static boost::interprocess::file_lock lock(pathLockFile.string().c_str()); - if (!lock.try_lock()) + if (!lock.try_lock()) { return InitError(strprintf(_("Cannot obtain a lock on data directory %s. %s is probably already running."), strDataDir, _(PACKAGE_NAME))); + } } catch(const boost::interprocess::interprocess_exception& e) { return InitError(strprintf(_("Cannot obtain a lock on data directory %s. %s is probably already running.") + " %s.", strDataDir, _(PACKAGE_NAME), e.what())); } + return true; +} + +bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler) +{ + const CChainParams& chainparams = Params(); + // ********************************************************* Step 4a: application initialization #ifndef WIN32 CreatePidFile(GetPidFile(), getpid()); @@ -1066,7 +1086,7 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler) if (!fLogTimestamps) LogPrintf("Startup time: %s\n", DateTimeStrFormat("%Y-%m-%d %H:%M:%S", GetTime())); LogPrintf("Default data directory %s\n", GetDefaultDataDir().string()); - LogPrintf("Using data directory %s\n", strDataDir); + LogPrintf("Using data directory %s\n", GetDataDir().string()); LogPrintf("Using config file %s\n", GetConfigFile(GetArg("-conf", BITCOIN_CONF_FILENAME)).string()); LogPrintf("Using at most %i connections (%i file descriptors available)\n", nMaxConnections, nFD); diff --git a/src/init.h b/src/init.h index 63e07ccb3..1b87e0ec5 100644 --- a/src/init.h +++ b/src/init.h @@ -25,7 +25,30 @@ void Shutdown(); void InitLogging(); //!Parameter interaction: change current parameters depending on various rules void InitParameterInteraction(); -bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler); + +/** Initialize bitcoin core: Basic context setup. + * @note This can be done before daemonization. + * @pre Parameters should be parsed and config file should be read. + */ +bool AppInitBasicSetup(); +/** + * Initialization: parameter interaction. + * @note This can be done before daemonization. + * @pre Parameters should be parsed and config file should be read, AppInitBasicSetup should have been called. + */ +bool AppInitParameterInteraction(); +/** + * Initialization sanity checks: ecc init, sanity checks, dir lock. + * @note This can be done before daemonization. + * @pre Parameters should be parsed and config file should be read, AppInitParameterInteraction should have been called. + */ +bool AppInitSanityChecks(); +/** + * Bitcoin core main initialization. + * @note This should only be done after daemonization. + * @pre Parameters should be parsed and config file should be read, AppInitSanityChecks should have been called. + */ +bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler); /** The help message mode determines what help message to show */ enum HelpMessageMode { diff --git a/src/qt/bitcoin.cpp b/src/qt/bitcoin.cpp index 9986af495..5e1a41d5a 100644 --- a/src/qt/bitcoin.cpp +++ b/src/qt/bitcoin.cpp @@ -267,7 +267,22 @@ void BitcoinCore::initialize() try { qDebug() << __func__ << ": Running AppInit2 in thread"; - int rv = AppInit2(threadGroup, scheduler); + if (!AppInitBasicSetup()) + { + Q_EMIT initializeResult(false); + return; + } + if (!AppInitParameterInteraction()) + { + Q_EMIT initializeResult(false); + return; + } + if (!AppInitSanityChecks()) + { + Q_EMIT initializeResult(false); + return; + } + int rv = AppInitMain(threadGroup, scheduler); Q_EMIT initializeResult(rv); } catch (const std::exception& e) { handleRunawayException(&e);