c3f1821ac7
The blocks directory is net specific by definition. Also this prevents the side effect of calling GetBlocksDir(false) in the non-mainnet environment.
1296 lines
41 KiB
C++
1296 lines
41 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2018 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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#include <util/system.h>
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#include <chainparamsbase.h>
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#include <random.h>
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#include <serialize.h>
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#include <util/strencodings.h>
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#include <stdarg.h>
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#if (defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__DragonFly__))
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#include <pthread.h>
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#include <pthread_np.h>
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#endif
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#ifndef WIN32
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// for posix_fallocate
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#ifdef __linux__
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#ifdef _POSIX_C_SOURCE
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#undef _POSIX_C_SOURCE
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#endif
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#define _POSIX_C_SOURCE 200112L
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#endif // __linux__
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#include <algorithm>
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#include <fcntl.h>
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#include <sched.h>
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#include <sys/resource.h>
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#include <sys/stat.h>
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#else
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#ifdef _MSC_VER
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#pragma warning(disable:4786)
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#pragma warning(disable:4804)
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#pragma warning(disable:4805)
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#pragma warning(disable:4717)
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#endif
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#ifdef _WIN32_WINNT
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#undef _WIN32_WINNT
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#endif
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#define _WIN32_WINNT 0x0501
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#ifdef _WIN32_IE
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#undef _WIN32_IE
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#endif
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#define _WIN32_IE 0x0501
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#define WIN32_LEAN_AND_MEAN 1
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#ifndef NOMINMAX
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#define NOMINMAX
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#endif
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#include <codecvt>
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#include <io.h> /* for _commit */
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#include <shellapi.h>
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#include <shlobj.h>
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#endif
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#ifdef HAVE_SYS_PRCTL_H
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#include <sys/prctl.h>
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#endif
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#ifdef HAVE_MALLOPT_ARENA_MAX
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#include <malloc.h>
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#endif
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#include <boost/thread.hpp>
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#include <openssl/crypto.h>
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#include <openssl/rand.h>
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#include <openssl/conf.h>
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#include <thread>
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// Application startup time (used for uptime calculation)
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const int64_t nStartupTime = GetTime();
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const char * const BITCOIN_CONF_FILENAME = "bitcoin.conf";
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const char * const BITCOIN_PID_FILENAME = "bitcoind.pid";
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ArgsManager gArgs;
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/** Init OpenSSL library multithreading support */
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static std::unique_ptr<CCriticalSection[]> ppmutexOpenSSL;
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void locking_callback(int mode, int i, const char* file, int line) NO_THREAD_SAFETY_ANALYSIS
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{
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if (mode & CRYPTO_LOCK) {
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ENTER_CRITICAL_SECTION(ppmutexOpenSSL[i]);
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} else {
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LEAVE_CRITICAL_SECTION(ppmutexOpenSSL[i]);
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}
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}
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// Singleton for wrapping OpenSSL setup/teardown.
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class CInit
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{
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public:
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CInit()
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{
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// Init OpenSSL library multithreading support
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ppmutexOpenSSL.reset(new CCriticalSection[CRYPTO_num_locks()]);
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CRYPTO_set_locking_callback(locking_callback);
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// OpenSSL can optionally load a config file which lists optional loadable modules and engines.
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// We don't use them so we don't require the config. However some of our libs may call functions
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// which attempt to load the config file, possibly resulting in an exit() or crash if it is missing
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// or corrupt. Explicitly tell OpenSSL not to try to load the file. The result for our libs will be
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// that the config appears to have been loaded and there are no modules/engines available.
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OPENSSL_no_config();
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#ifdef WIN32
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// Seed OpenSSL PRNG with current contents of the screen
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RAND_screen();
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#endif
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// Seed OpenSSL PRNG with performance counter
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RandAddSeed();
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}
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~CInit()
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{
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// Securely erase the memory used by the PRNG
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RAND_cleanup();
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// Shutdown OpenSSL library multithreading support
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CRYPTO_set_locking_callback(nullptr);
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// Clear the set of locks now to maintain symmetry with the constructor.
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ppmutexOpenSSL.reset();
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}
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}
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instance_of_cinit;
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/** A map that contains all the currently held directory locks. After
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* successful locking, these will be held here until the global destructor
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* cleans them up and thus automatically unlocks them, or ReleaseDirectoryLocks
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* is called.
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*/
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static std::map<std::string, std::unique_ptr<fsbridge::FileLock>> dir_locks;
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/** Mutex to protect dir_locks. */
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static std::mutex cs_dir_locks;
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bool LockDirectory(const fs::path& directory, const std::string lockfile_name, bool probe_only)
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{
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std::lock_guard<std::mutex> ulock(cs_dir_locks);
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fs::path pathLockFile = directory / lockfile_name;
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// If a lock for this directory already exists in the map, don't try to re-lock it
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if (dir_locks.count(pathLockFile.string())) {
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return true;
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}
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// Create empty lock file if it doesn't exist.
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FILE* file = fsbridge::fopen(pathLockFile, "a");
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if (file) fclose(file);
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auto lock = MakeUnique<fsbridge::FileLock>(pathLockFile);
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if (!lock->TryLock()) {
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return error("Error while attempting to lock directory %s: %s", directory.string(), lock->GetReason());
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}
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if (!probe_only) {
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// Lock successful and we're not just probing, put it into the map
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dir_locks.emplace(pathLockFile.string(), std::move(lock));
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}
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return true;
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}
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void ReleaseDirectoryLocks()
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{
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std::lock_guard<std::mutex> ulock(cs_dir_locks);
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dir_locks.clear();
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}
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bool DirIsWritable(const fs::path& directory)
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{
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fs::path tmpFile = directory / fs::unique_path();
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FILE* file = fsbridge::fopen(tmpFile, "a");
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if (!file) return false;
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fclose(file);
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remove(tmpFile);
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return true;
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}
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/**
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* Interpret a string argument as a boolean.
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*
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* The definition of atoi() requires that non-numeric string values like "foo",
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* return 0. This means that if a user unintentionally supplies a non-integer
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* argument here, the return value is always false. This means that -foo=false
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* does what the user probably expects, but -foo=true is well defined but does
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* not do what they probably expected.
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*
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* The return value of atoi() is undefined when given input not representable as
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* an int. On most systems this means string value between "-2147483648" and
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* "2147483647" are well defined (this method will return true). Setting
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* -txindex=2147483648 on most systems, however, is probably undefined.
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*
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* For a more extensive discussion of this topic (and a wide range of opinions
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* on the Right Way to change this code), see PR12713.
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*/
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static bool InterpretBool(const std::string& strValue)
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{
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if (strValue.empty())
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return true;
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return (atoi(strValue) != 0);
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}
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/** Internal helper functions for ArgsManager */
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class ArgsManagerHelper {
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public:
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typedef std::map<std::string, std::vector<std::string>> MapArgs;
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/** Determine whether to use config settings in the default section,
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* See also comments around ArgsManager::ArgsManager() below. */
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static inline bool UseDefaultSection(const ArgsManager& am, const std::string& arg) EXCLUSIVE_LOCKS_REQUIRED(am.cs_args)
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{
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return (am.m_network == CBaseChainParams::MAIN || am.m_network_only_args.count(arg) == 0);
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}
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/** Convert regular argument into the network-specific setting */
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static inline std::string NetworkArg(const ArgsManager& am, const std::string& arg)
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{
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assert(arg.length() > 1 && arg[0] == '-');
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return "-" + am.m_network + "." + arg.substr(1);
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}
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/** Find arguments in a map and add them to a vector */
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static inline void AddArgs(std::vector<std::string>& res, const MapArgs& map_args, const std::string& arg)
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{
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auto it = map_args.find(arg);
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if (it != map_args.end()) {
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res.insert(res.end(), it->second.begin(), it->second.end());
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}
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}
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/** Return true/false if an argument is set in a map, and also
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* return the first (or last) of the possibly multiple values it has
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*/
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static inline std::pair<bool,std::string> GetArgHelper(const MapArgs& map_args, const std::string& arg, bool getLast = false)
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{
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auto it = map_args.find(arg);
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if (it == map_args.end() || it->second.empty()) {
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return std::make_pair(false, std::string());
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}
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if (getLast) {
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return std::make_pair(true, it->second.back());
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} else {
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return std::make_pair(true, it->second.front());
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}
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}
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/* Get the string value of an argument, returning a pair of a boolean
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* indicating the argument was found, and the value for the argument
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* if it was found (or the empty string if not found).
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*/
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static inline std::pair<bool,std::string> GetArg(const ArgsManager &am, const std::string& arg)
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{
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LOCK(am.cs_args);
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std::pair<bool,std::string> found_result(false, std::string());
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// We pass "true" to GetArgHelper in order to return the last
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// argument value seen from the command line (so "bitcoind -foo=bar
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// -foo=baz" gives GetArg(am,"foo")=={true,"baz"}
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found_result = GetArgHelper(am.m_override_args, arg, true);
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if (found_result.first) {
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return found_result;
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}
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// But in contrast we return the first argument seen in a config file,
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// so "foo=bar \n foo=baz" in the config file gives
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// GetArg(am,"foo")={true,"bar"}
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if (!am.m_network.empty()) {
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found_result = GetArgHelper(am.m_config_args, NetworkArg(am, arg));
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if (found_result.first) {
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return found_result;
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}
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}
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if (UseDefaultSection(am, arg)) {
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found_result = GetArgHelper(am.m_config_args, arg);
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if (found_result.first) {
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return found_result;
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}
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}
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return found_result;
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}
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/* Special test for -testnet and -regtest args, because we
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* don't want to be confused by craziness like "[regtest] testnet=1"
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*/
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static inline bool GetNetBoolArg(const ArgsManager &am, const std::string& net_arg) EXCLUSIVE_LOCKS_REQUIRED(am.cs_args)
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{
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std::pair<bool,std::string> found_result(false,std::string());
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found_result = GetArgHelper(am.m_override_args, net_arg, true);
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if (!found_result.first) {
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found_result = GetArgHelper(am.m_config_args, net_arg, true);
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if (!found_result.first) {
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return false; // not set
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}
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}
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return InterpretBool(found_result.second); // is set, so evaluate
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}
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};
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/**
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* Interpret -nofoo as if the user supplied -foo=0.
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*
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* This method also tracks when the -no form was supplied, and if so,
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* checks whether there was a double-negative (-nofoo=0 -> -foo=1).
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*
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* If there was not a double negative, it removes the "no" from the key,
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* and returns true, indicating the caller should clear the args vector
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* to indicate a negated option.
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*
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* If there was a double negative, it removes "no" from the key, sets the
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* value to "1" and returns false.
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*
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* If there was no "no", it leaves key and value untouched and returns
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* false.
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*
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* Where an option was negated can be later checked using the
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* IsArgNegated() method. One use case for this is to have a way to disable
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* options that are not normally boolean (e.g. using -nodebuglogfile to request
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* that debug log output is not sent to any file at all).
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*/
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static bool InterpretNegatedOption(std::string& key, std::string& val)
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{
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assert(key[0] == '-');
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size_t option_index = key.find('.');
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if (option_index == std::string::npos) {
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option_index = 1;
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} else {
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++option_index;
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}
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if (key.substr(option_index, 2) == "no") {
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bool bool_val = InterpretBool(val);
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key.erase(option_index, 2);
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if (!bool_val ) {
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// Double negatives like -nofoo=0 are supported (but discouraged)
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LogPrintf("Warning: parsed potentially confusing double-negative %s=%s\n", key, val);
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val = "1";
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} else {
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return true;
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}
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}
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return false;
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}
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ArgsManager::ArgsManager() :
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/* These options would cause cross-contamination if values for
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* mainnet were used while running on regtest/testnet (or vice-versa).
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* Setting them as section_only_args ensures that sharing a config file
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* between mainnet and regtest/testnet won't cause problems due to these
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* parameters by accident. */
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m_network_only_args{
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"-addnode", "-connect",
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"-port", "-bind",
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"-rpcport", "-rpcbind",
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"-wallet",
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}
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{
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// nothing to do
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}
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void ArgsManager::WarnForSectionOnlyArgs()
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{
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LOCK(cs_args);
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// if there's no section selected, don't worry
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if (m_network.empty()) return;
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// if it's okay to use the default section for this network, don't worry
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if (m_network == CBaseChainParams::MAIN) return;
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for (const auto& arg : m_network_only_args) {
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std::pair<bool, std::string> found_result;
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// if this option is overridden it's fine
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found_result = ArgsManagerHelper::GetArgHelper(m_override_args, arg);
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if (found_result.first) continue;
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// if there's a network-specific value for this option, it's fine
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found_result = ArgsManagerHelper::GetArgHelper(m_config_args, ArgsManagerHelper::NetworkArg(*this, arg));
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if (found_result.first) continue;
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// if there isn't a default value for this option, it's fine
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found_result = ArgsManagerHelper::GetArgHelper(m_config_args, arg);
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if (!found_result.first) continue;
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// otherwise, issue a warning
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LogPrintf("Warning: Config setting for %s only applied on %s network when in [%s] section.\n", arg, m_network, m_network);
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}
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}
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void ArgsManager::SelectConfigNetwork(const std::string& network)
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{
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LOCK(cs_args);
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m_network = network;
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}
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bool ArgsManager::ParseParameters(int argc, const char* const argv[], std::string& error)
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{
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LOCK(cs_args);
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m_override_args.clear();
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for (int i = 1; i < argc; i++) {
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std::string key(argv[i]);
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std::string val;
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size_t is_index = key.find('=');
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if (is_index != std::string::npos) {
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val = key.substr(is_index + 1);
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key.erase(is_index);
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}
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#ifdef WIN32
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std::transform(key.begin(), key.end(), key.begin(), ::tolower);
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if (key[0] == '/')
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key[0] = '-';
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#endif
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if (key[0] != '-')
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break;
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// Transform --foo to -foo
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if (key.length() > 1 && key[1] == '-')
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key.erase(0, 1);
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// Check for -nofoo
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if (InterpretNegatedOption(key, val)) {
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m_override_args[key].clear();
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} else {
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m_override_args[key].push_back(val);
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}
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// Check that the arg is known
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if (!(IsSwitchChar(key[0]) && key.size() == 1)) {
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if (!IsArgKnown(key)) {
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error = strprintf("Invalid parameter %s", key.c_str());
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return false;
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}
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}
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}
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// we do not allow -includeconf from command line, so we clear it here
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auto it = m_override_args.find("-includeconf");
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if (it != m_override_args.end()) {
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if (it->second.size() > 0) {
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for (const auto& ic : it->second) {
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error += "-includeconf cannot be used from commandline; -includeconf=" + ic + "\n";
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}
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return false;
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}
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}
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return true;
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}
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bool ArgsManager::IsArgKnown(const std::string& key) const
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{
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size_t option_index = key.find('.');
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std::string arg_no_net;
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if (option_index == std::string::npos) {
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arg_no_net = key;
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} else {
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arg_no_net = std::string("-") + key.substr(option_index + 1, std::string::npos);
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}
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LOCK(cs_args);
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for (const auto& arg_map : m_available_args) {
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if (arg_map.second.count(arg_no_net)) return true;
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}
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return false;
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}
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std::vector<std::string> ArgsManager::GetArgs(const std::string& strArg) const
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{
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std::vector<std::string> result = {};
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if (IsArgNegated(strArg)) return result; // special case
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LOCK(cs_args);
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ArgsManagerHelper::AddArgs(result, m_override_args, strArg);
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if (!m_network.empty()) {
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ArgsManagerHelper::AddArgs(result, m_config_args, ArgsManagerHelper::NetworkArg(*this, strArg));
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}
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if (ArgsManagerHelper::UseDefaultSection(*this, strArg)) {
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ArgsManagerHelper::AddArgs(result, m_config_args, strArg);
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}
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return result;
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}
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bool ArgsManager::IsArgSet(const std::string& strArg) const
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{
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if (IsArgNegated(strArg)) return true; // special case
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return ArgsManagerHelper::GetArg(*this, strArg).first;
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}
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bool ArgsManager::IsArgNegated(const std::string& strArg) const
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{
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|
LOCK(cs_args);
|
|
|
|
const auto& ov = m_override_args.find(strArg);
|
|
if (ov != m_override_args.end()) return ov->second.empty();
|
|
|
|
if (!m_network.empty()) {
|
|
const auto& cfs = m_config_args.find(ArgsManagerHelper::NetworkArg(*this, strArg));
|
|
if (cfs != m_config_args.end()) return cfs->second.empty();
|
|
}
|
|
|
|
const auto& cf = m_config_args.find(strArg);
|
|
if (cf != m_config_args.end()) return cf->second.empty();
|
|
|
|
return false;
|
|
}
|
|
|
|
std::string ArgsManager::GetArg(const std::string& strArg, const std::string& strDefault) const
|
|
{
|
|
if (IsArgNegated(strArg)) return "0";
|
|
std::pair<bool,std::string> found_res = ArgsManagerHelper::GetArg(*this, strArg);
|
|
if (found_res.first) return found_res.second;
|
|
return strDefault;
|
|
}
|
|
|
|
int64_t ArgsManager::GetArg(const std::string& strArg, int64_t nDefault) const
|
|
{
|
|
if (IsArgNegated(strArg)) return 0;
|
|
std::pair<bool,std::string> found_res = ArgsManagerHelper::GetArg(*this, strArg);
|
|
if (found_res.first) return atoi64(found_res.second);
|
|
return nDefault;
|
|
}
|
|
|
|
bool ArgsManager::GetBoolArg(const std::string& strArg, bool fDefault) const
|
|
{
|
|
if (IsArgNegated(strArg)) return false;
|
|
std::pair<bool,std::string> found_res = ArgsManagerHelper::GetArg(*this, strArg);
|
|
if (found_res.first) return InterpretBool(found_res.second);
|
|
return fDefault;
|
|
}
|
|
|
|
bool ArgsManager::SoftSetArg(const std::string& strArg, const std::string& strValue)
|
|
{
|
|
LOCK(cs_args);
|
|
if (IsArgSet(strArg)) return false;
|
|
ForceSetArg(strArg, strValue);
|
|
return true;
|
|
}
|
|
|
|
bool ArgsManager::SoftSetBoolArg(const std::string& strArg, bool fValue)
|
|
{
|
|
if (fValue)
|
|
return SoftSetArg(strArg, std::string("1"));
|
|
else
|
|
return SoftSetArg(strArg, std::string("0"));
|
|
}
|
|
|
|
void ArgsManager::ForceSetArg(const std::string& strArg, const std::string& strValue)
|
|
{
|
|
LOCK(cs_args);
|
|
m_override_args[strArg] = {strValue};
|
|
}
|
|
|
|
void ArgsManager::AddArg(const std::string& name, const std::string& help, const bool debug_only, const OptionsCategory& cat)
|
|
{
|
|
// Split arg name from its help param
|
|
size_t eq_index = name.find('=');
|
|
if (eq_index == std::string::npos) {
|
|
eq_index = name.size();
|
|
}
|
|
|
|
LOCK(cs_args);
|
|
std::map<std::string, Arg>& arg_map = m_available_args[cat];
|
|
auto ret = arg_map.emplace(name.substr(0, eq_index), Arg(name.substr(eq_index, name.size() - eq_index), help, debug_only));
|
|
assert(ret.second); // Make sure an insertion actually happened
|
|
}
|
|
|
|
void ArgsManager::AddHiddenArgs(const std::vector<std::string>& names)
|
|
{
|
|
for (const std::string& name : names) {
|
|
AddArg(name, "", false, OptionsCategory::HIDDEN);
|
|
}
|
|
}
|
|
|
|
std::string ArgsManager::GetHelpMessage() const
|
|
{
|
|
const bool show_debug = gArgs.GetBoolArg("-help-debug", false);
|
|
|
|
std::string usage = "";
|
|
LOCK(cs_args);
|
|
for (const auto& arg_map : m_available_args) {
|
|
switch(arg_map.first) {
|
|
case OptionsCategory::OPTIONS:
|
|
usage += HelpMessageGroup("Options:");
|
|
break;
|
|
case OptionsCategory::CONNECTION:
|
|
usage += HelpMessageGroup("Connection options:");
|
|
break;
|
|
case OptionsCategory::ZMQ:
|
|
usage += HelpMessageGroup("ZeroMQ notification options:");
|
|
break;
|
|
case OptionsCategory::DEBUG_TEST:
|
|
usage += HelpMessageGroup("Debugging/Testing options:");
|
|
break;
|
|
case OptionsCategory::NODE_RELAY:
|
|
usage += HelpMessageGroup("Node relay options:");
|
|
break;
|
|
case OptionsCategory::BLOCK_CREATION:
|
|
usage += HelpMessageGroup("Block creation options:");
|
|
break;
|
|
case OptionsCategory::RPC:
|
|
usage += HelpMessageGroup("RPC server options:");
|
|
break;
|
|
case OptionsCategory::WALLET:
|
|
usage += HelpMessageGroup("Wallet options:");
|
|
break;
|
|
case OptionsCategory::WALLET_DEBUG_TEST:
|
|
if (show_debug) usage += HelpMessageGroup("Wallet debugging/testing options:");
|
|
break;
|
|
case OptionsCategory::CHAINPARAMS:
|
|
usage += HelpMessageGroup("Chain selection options:");
|
|
break;
|
|
case OptionsCategory::GUI:
|
|
usage += HelpMessageGroup("UI Options:");
|
|
break;
|
|
case OptionsCategory::COMMANDS:
|
|
usage += HelpMessageGroup("Commands:");
|
|
break;
|
|
case OptionsCategory::REGISTER_COMMANDS:
|
|
usage += HelpMessageGroup("Register Commands:");
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
// When we get to the hidden options, stop
|
|
if (arg_map.first == OptionsCategory::HIDDEN) break;
|
|
|
|
for (const auto& arg : arg_map.second) {
|
|
if (show_debug || !arg.second.m_debug_only) {
|
|
std::string name;
|
|
if (arg.second.m_help_param.empty()) {
|
|
name = arg.first;
|
|
} else {
|
|
name = arg.first + arg.second.m_help_param;
|
|
}
|
|
usage += HelpMessageOpt(name, arg.second.m_help_text);
|
|
}
|
|
}
|
|
}
|
|
return usage;
|
|
}
|
|
|
|
bool HelpRequested(const ArgsManager& args)
|
|
{
|
|
return args.IsArgSet("-?") || args.IsArgSet("-h") || args.IsArgSet("-help") || args.IsArgSet("-help-debug");
|
|
}
|
|
|
|
static const int screenWidth = 79;
|
|
static const int optIndent = 2;
|
|
static const int msgIndent = 7;
|
|
|
|
std::string HelpMessageGroup(const std::string &message) {
|
|
return std::string(message) + std::string("\n\n");
|
|
}
|
|
|
|
std::string HelpMessageOpt(const std::string &option, const std::string &message) {
|
|
return std::string(optIndent,' ') + std::string(option) +
|
|
std::string("\n") + std::string(msgIndent,' ') +
|
|
FormatParagraph(message, screenWidth - msgIndent, msgIndent) +
|
|
std::string("\n\n");
|
|
}
|
|
|
|
static std::string FormatException(const std::exception* pex, const char* pszThread)
|
|
{
|
|
#ifdef WIN32
|
|
char pszModule[MAX_PATH] = "";
|
|
GetModuleFileNameA(nullptr, pszModule, sizeof(pszModule));
|
|
#else
|
|
const char* pszModule = "bitcoin";
|
|
#endif
|
|
if (pex)
|
|
return strprintf(
|
|
"EXCEPTION: %s \n%s \n%s in %s \n", typeid(*pex).name(), pex->what(), pszModule, pszThread);
|
|
else
|
|
return strprintf(
|
|
"UNKNOWN EXCEPTION \n%s in %s \n", pszModule, pszThread);
|
|
}
|
|
|
|
void PrintExceptionContinue(const std::exception* pex, const char* pszThread)
|
|
{
|
|
std::string message = FormatException(pex, pszThread);
|
|
LogPrintf("\n\n************************\n%s\n", message);
|
|
fprintf(stderr, "\n\n************************\n%s\n", message.c_str());
|
|
}
|
|
|
|
fs::path GetDefaultDataDir()
|
|
{
|
|
// Windows < Vista: C:\Documents and Settings\Username\Application Data\Bitcoin
|
|
// Windows >= Vista: C:\Users\Username\AppData\Roaming\Bitcoin
|
|
// Mac: ~/Library/Application Support/Bitcoin
|
|
// Unix: ~/.bitcoin
|
|
#ifdef WIN32
|
|
// Windows
|
|
return GetSpecialFolderPath(CSIDL_APPDATA) / "Bitcoin";
|
|
#else
|
|
fs::path pathRet;
|
|
char* pszHome = getenv("HOME");
|
|
if (pszHome == nullptr || strlen(pszHome) == 0)
|
|
pathRet = fs::path("/");
|
|
else
|
|
pathRet = fs::path(pszHome);
|
|
#ifdef MAC_OSX
|
|
// Mac
|
|
return pathRet / "Library/Application Support/Bitcoin";
|
|
#else
|
|
// Unix
|
|
return pathRet / ".bitcoin";
|
|
#endif
|
|
#endif
|
|
}
|
|
|
|
static fs::path g_blocks_path_cache_net_specific;
|
|
static fs::path pathCached;
|
|
static fs::path pathCachedNetSpecific;
|
|
static CCriticalSection csPathCached;
|
|
|
|
const fs::path &GetBlocksDir()
|
|
{
|
|
|
|
LOCK(csPathCached);
|
|
|
|
fs::path &path = g_blocks_path_cache_net_specific;
|
|
|
|
// This can be called during exceptions by LogPrintf(), so we cache the
|
|
// value so we don't have to do memory allocations after that.
|
|
if (!path.empty())
|
|
return path;
|
|
|
|
if (gArgs.IsArgSet("-blocksdir")) {
|
|
path = fs::system_complete(gArgs.GetArg("-blocksdir", ""));
|
|
if (!fs::is_directory(path)) {
|
|
path = "";
|
|
return path;
|
|
}
|
|
} else {
|
|
path = GetDataDir(false);
|
|
}
|
|
|
|
path /= BaseParams().DataDir();
|
|
path /= "blocks";
|
|
fs::create_directories(path);
|
|
return path;
|
|
}
|
|
|
|
const fs::path &GetDataDir(bool fNetSpecific)
|
|
{
|
|
|
|
LOCK(csPathCached);
|
|
|
|
fs::path &path = fNetSpecific ? pathCachedNetSpecific : pathCached;
|
|
|
|
// This can be called during exceptions by LogPrintf(), so we cache the
|
|
// value so we don't have to do memory allocations after that.
|
|
if (!path.empty())
|
|
return path;
|
|
|
|
if (gArgs.IsArgSet("-datadir")) {
|
|
path = fs::system_complete(gArgs.GetArg("-datadir", ""));
|
|
if (!fs::is_directory(path)) {
|
|
path = "";
|
|
return path;
|
|
}
|
|
} else {
|
|
path = GetDefaultDataDir();
|
|
}
|
|
if (fNetSpecific)
|
|
path /= BaseParams().DataDir();
|
|
|
|
if (fs::create_directories(path)) {
|
|
// This is the first run, create wallets subdirectory too
|
|
fs::create_directories(path / "wallets");
|
|
}
|
|
|
|
return path;
|
|
}
|
|
|
|
void ClearDatadirCache()
|
|
{
|
|
LOCK(csPathCached);
|
|
|
|
pathCached = fs::path();
|
|
pathCachedNetSpecific = fs::path();
|
|
g_blocks_path_cache_net_specific = fs::path();
|
|
}
|
|
|
|
fs::path GetConfigFile(const std::string& confPath)
|
|
{
|
|
return AbsPathForConfigVal(fs::path(confPath), false);
|
|
}
|
|
|
|
static std::string TrimString(const std::string& str, const std::string& pattern)
|
|
{
|
|
std::string::size_type front = str.find_first_not_of(pattern);
|
|
if (front == std::string::npos) {
|
|
return std::string();
|
|
}
|
|
std::string::size_type end = str.find_last_not_of(pattern);
|
|
return str.substr(front, end - front + 1);
|
|
}
|
|
|
|
static bool GetConfigOptions(std::istream& stream, std::string& error, std::vector<std::pair<std::string, std::string>> &options)
|
|
{
|
|
std::string str, prefix;
|
|
std::string::size_type pos;
|
|
int linenr = 1;
|
|
while (std::getline(stream, str)) {
|
|
if ((pos = str.find('#')) != std::string::npos) {
|
|
str = str.substr(0, pos);
|
|
}
|
|
const static std::string pattern = " \t\r\n";
|
|
str = TrimString(str, pattern);
|
|
if (!str.empty()) {
|
|
if (*str.begin() == '[' && *str.rbegin() == ']') {
|
|
prefix = str.substr(1, str.size() - 2) + '.';
|
|
} else if (*str.begin() == '-') {
|
|
error = strprintf("parse error on line %i: %s, options in configuration file must be specified without leading -", linenr, str);
|
|
return false;
|
|
} else if ((pos = str.find('=')) != std::string::npos) {
|
|
std::string name = prefix + TrimString(str.substr(0, pos), pattern);
|
|
std::string value = TrimString(str.substr(pos + 1), pattern);
|
|
options.emplace_back(name, value);
|
|
} else {
|
|
error = strprintf("parse error on line %i: %s", linenr, str);
|
|
if (str.size() >= 2 && str.substr(0, 2) == "no") {
|
|
error += strprintf(", if you intended to specify a negated option, use %s=1 instead", str);
|
|
}
|
|
return false;
|
|
}
|
|
}
|
|
++linenr;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool ArgsManager::ReadConfigStream(std::istream& stream, std::string& error, bool ignore_invalid_keys)
|
|
{
|
|
LOCK(cs_args);
|
|
std::vector<std::pair<std::string, std::string>> options;
|
|
if (!GetConfigOptions(stream, error, options)) {
|
|
return false;
|
|
}
|
|
for (const std::pair<std::string, std::string>& option : options) {
|
|
std::string strKey = std::string("-") + option.first;
|
|
std::string strValue = option.second;
|
|
|
|
if (InterpretNegatedOption(strKey, strValue)) {
|
|
m_config_args[strKey].clear();
|
|
} else {
|
|
m_config_args[strKey].push_back(strValue);
|
|
}
|
|
|
|
// Check that the arg is known
|
|
if (!IsArgKnown(strKey)) {
|
|
if (!ignore_invalid_keys) {
|
|
error = strprintf("Invalid configuration value %s", option.first.c_str());
|
|
return false;
|
|
} else {
|
|
LogPrintf("Ignoring unknown configuration value %s\n", option.first);
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool ArgsManager::ReadConfigFiles(std::string& error, bool ignore_invalid_keys)
|
|
{
|
|
{
|
|
LOCK(cs_args);
|
|
m_config_args.clear();
|
|
}
|
|
|
|
const std::string confPath = GetArg("-conf", BITCOIN_CONF_FILENAME);
|
|
fsbridge::ifstream stream(GetConfigFile(confPath));
|
|
|
|
// ok to not have a config file
|
|
if (stream.good()) {
|
|
if (!ReadConfigStream(stream, error, ignore_invalid_keys)) {
|
|
return false;
|
|
}
|
|
// if there is an -includeconf in the override args, but it is empty, that means the user
|
|
// passed '-noincludeconf' on the command line, in which case we should not include anything
|
|
bool emptyIncludeConf;
|
|
{
|
|
LOCK(cs_args);
|
|
emptyIncludeConf = m_override_args.count("-includeconf") == 0;
|
|
}
|
|
if (emptyIncludeConf) {
|
|
std::string chain_id = GetChainName();
|
|
std::vector<std::string> includeconf(GetArgs("-includeconf"));
|
|
{
|
|
// We haven't set m_network yet (that happens in SelectParams()), so manually check
|
|
// for network.includeconf args.
|
|
std::vector<std::string> includeconf_net(GetArgs(std::string("-") + chain_id + ".includeconf"));
|
|
includeconf.insert(includeconf.end(), includeconf_net.begin(), includeconf_net.end());
|
|
}
|
|
|
|
// Remove -includeconf from configuration, so we can warn about recursion
|
|
// later
|
|
{
|
|
LOCK(cs_args);
|
|
m_config_args.erase("-includeconf");
|
|
m_config_args.erase(std::string("-") + chain_id + ".includeconf");
|
|
}
|
|
|
|
for (const std::string& to_include : includeconf) {
|
|
fsbridge::ifstream include_config(GetConfigFile(to_include));
|
|
if (include_config.good()) {
|
|
if (!ReadConfigStream(include_config, error, ignore_invalid_keys)) {
|
|
return false;
|
|
}
|
|
LogPrintf("Included configuration file %s\n", to_include.c_str());
|
|
} else {
|
|
error = "Failed to include configuration file " + to_include;
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Warn about recursive -includeconf
|
|
includeconf = GetArgs("-includeconf");
|
|
{
|
|
std::vector<std::string> includeconf_net(GetArgs(std::string("-") + chain_id + ".includeconf"));
|
|
includeconf.insert(includeconf.end(), includeconf_net.begin(), includeconf_net.end());
|
|
std::string chain_id_final = GetChainName();
|
|
if (chain_id_final != chain_id) {
|
|
// Also warn about recursive includeconf for the chain that was specified in one of the includeconfs
|
|
includeconf_net = GetArgs(std::string("-") + chain_id_final + ".includeconf");
|
|
includeconf.insert(includeconf.end(), includeconf_net.begin(), includeconf_net.end());
|
|
}
|
|
}
|
|
for (const std::string& to_include : includeconf) {
|
|
fprintf(stderr, "warning: -includeconf cannot be used from included files; ignoring -includeconf=%s\n", to_include.c_str());
|
|
}
|
|
}
|
|
}
|
|
|
|
// If datadir is changed in .conf file:
|
|
ClearDatadirCache();
|
|
if (!fs::is_directory(GetDataDir(false))) {
|
|
error = strprintf("specified data directory \"%s\" does not exist.", gArgs.GetArg("-datadir", "").c_str());
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
std::string ArgsManager::GetChainName() const
|
|
{
|
|
LOCK(cs_args);
|
|
bool fRegTest = ArgsManagerHelper::GetNetBoolArg(*this, "-regtest");
|
|
bool fTestNet = ArgsManagerHelper::GetNetBoolArg(*this, "-testnet");
|
|
|
|
if (fTestNet && fRegTest)
|
|
throw std::runtime_error("Invalid combination of -regtest and -testnet.");
|
|
if (fRegTest)
|
|
return CBaseChainParams::REGTEST;
|
|
if (fTestNet)
|
|
return CBaseChainParams::TESTNET;
|
|
return CBaseChainParams::MAIN;
|
|
}
|
|
|
|
#ifndef WIN32
|
|
fs::path GetPidFile()
|
|
{
|
|
return AbsPathForConfigVal(fs::path(gArgs.GetArg("-pid", BITCOIN_PID_FILENAME)));
|
|
}
|
|
|
|
void CreatePidFile(const fs::path &path, pid_t pid)
|
|
{
|
|
FILE* file = fsbridge::fopen(path, "w");
|
|
if (file)
|
|
{
|
|
fprintf(file, "%d\n", pid);
|
|
fclose(file);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
bool RenameOver(fs::path src, fs::path dest)
|
|
{
|
|
#ifdef WIN32
|
|
return MoveFileExW(src.wstring().c_str(), dest.wstring().c_str(),
|
|
MOVEFILE_REPLACE_EXISTING) != 0;
|
|
#else
|
|
int rc = std::rename(src.string().c_str(), dest.string().c_str());
|
|
return (rc == 0);
|
|
#endif /* WIN32 */
|
|
}
|
|
|
|
/**
|
|
* Ignores exceptions thrown by Boost's create_directories if the requested directory exists.
|
|
* Specifically handles case where path p exists, but it wasn't possible for the user to
|
|
* write to the parent directory.
|
|
*/
|
|
bool TryCreateDirectories(const fs::path& p)
|
|
{
|
|
try
|
|
{
|
|
return fs::create_directories(p);
|
|
} catch (const fs::filesystem_error&) {
|
|
if (!fs::exists(p) || !fs::is_directory(p))
|
|
throw;
|
|
}
|
|
|
|
// create_directories didn't create the directory, it had to have existed already
|
|
return false;
|
|
}
|
|
|
|
bool FileCommit(FILE *file)
|
|
{
|
|
if (fflush(file) != 0) { // harmless if redundantly called
|
|
LogPrintf("%s: fflush failed: %d\n", __func__, errno);
|
|
return false;
|
|
}
|
|
#ifdef WIN32
|
|
HANDLE hFile = (HANDLE)_get_osfhandle(_fileno(file));
|
|
if (FlushFileBuffers(hFile) == 0) {
|
|
LogPrintf("%s: FlushFileBuffers failed: %d\n", __func__, GetLastError());
|
|
return false;
|
|
}
|
|
#else
|
|
#if defined(__linux__) || defined(__NetBSD__)
|
|
if (fdatasync(fileno(file)) != 0 && errno != EINVAL) { // Ignore EINVAL for filesystems that don't support sync
|
|
LogPrintf("%s: fdatasync failed: %d\n", __func__, errno);
|
|
return false;
|
|
}
|
|
#elif defined(MAC_OSX) && defined(F_FULLFSYNC)
|
|
if (fcntl(fileno(file), F_FULLFSYNC, 0) == -1) { // Manpage says "value other than -1" is returned on success
|
|
LogPrintf("%s: fcntl F_FULLFSYNC failed: %d\n", __func__, errno);
|
|
return false;
|
|
}
|
|
#else
|
|
if (fsync(fileno(file)) != 0 && errno != EINVAL) {
|
|
LogPrintf("%s: fsync failed: %d\n", __func__, errno);
|
|
return false;
|
|
}
|
|
#endif
|
|
#endif
|
|
return true;
|
|
}
|
|
|
|
bool TruncateFile(FILE *file, unsigned int length) {
|
|
#if defined(WIN32)
|
|
return _chsize(_fileno(file), length) == 0;
|
|
#else
|
|
return ftruncate(fileno(file), length) == 0;
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
* this function tries to raise the file descriptor limit to the requested number.
|
|
* It returns the actual file descriptor limit (which may be more or less than nMinFD)
|
|
*/
|
|
int RaiseFileDescriptorLimit(int nMinFD) {
|
|
#if defined(WIN32)
|
|
return 2048;
|
|
#else
|
|
struct rlimit limitFD;
|
|
if (getrlimit(RLIMIT_NOFILE, &limitFD) != -1) {
|
|
if (limitFD.rlim_cur < (rlim_t)nMinFD) {
|
|
limitFD.rlim_cur = nMinFD;
|
|
if (limitFD.rlim_cur > limitFD.rlim_max)
|
|
limitFD.rlim_cur = limitFD.rlim_max;
|
|
setrlimit(RLIMIT_NOFILE, &limitFD);
|
|
getrlimit(RLIMIT_NOFILE, &limitFD);
|
|
}
|
|
return limitFD.rlim_cur;
|
|
}
|
|
return nMinFD; // getrlimit failed, assume it's fine
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
* this function tries to make a particular range of a file allocated (corresponding to disk space)
|
|
* it is advisory, and the range specified in the arguments will never contain live data
|
|
*/
|
|
void AllocateFileRange(FILE *file, unsigned int offset, unsigned int length) {
|
|
#if defined(WIN32)
|
|
// Windows-specific version
|
|
HANDLE hFile = (HANDLE)_get_osfhandle(_fileno(file));
|
|
LARGE_INTEGER nFileSize;
|
|
int64_t nEndPos = (int64_t)offset + length;
|
|
nFileSize.u.LowPart = nEndPos & 0xFFFFFFFF;
|
|
nFileSize.u.HighPart = nEndPos >> 32;
|
|
SetFilePointerEx(hFile, nFileSize, 0, FILE_BEGIN);
|
|
SetEndOfFile(hFile);
|
|
#elif defined(MAC_OSX)
|
|
// OSX specific version
|
|
fstore_t fst;
|
|
fst.fst_flags = F_ALLOCATECONTIG;
|
|
fst.fst_posmode = F_PEOFPOSMODE;
|
|
fst.fst_offset = 0;
|
|
fst.fst_length = (off_t)offset + length;
|
|
fst.fst_bytesalloc = 0;
|
|
if (fcntl(fileno(file), F_PREALLOCATE, &fst) == -1) {
|
|
fst.fst_flags = F_ALLOCATEALL;
|
|
fcntl(fileno(file), F_PREALLOCATE, &fst);
|
|
}
|
|
ftruncate(fileno(file), fst.fst_length);
|
|
#elif defined(__linux__)
|
|
// Version using posix_fallocate
|
|
off_t nEndPos = (off_t)offset + length;
|
|
posix_fallocate(fileno(file), 0, nEndPos);
|
|
#else
|
|
// Fallback version
|
|
// TODO: just write one byte per block
|
|
static const char buf[65536] = {};
|
|
if (fseek(file, offset, SEEK_SET)) {
|
|
return;
|
|
}
|
|
while (length > 0) {
|
|
unsigned int now = 65536;
|
|
if (length < now)
|
|
now = length;
|
|
fwrite(buf, 1, now, file); // allowed to fail; this function is advisory anyway
|
|
length -= now;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
#ifdef WIN32
|
|
fs::path GetSpecialFolderPath(int nFolder, bool fCreate)
|
|
{
|
|
WCHAR pszPath[MAX_PATH] = L"";
|
|
|
|
if(SHGetSpecialFolderPathW(nullptr, pszPath, nFolder, fCreate))
|
|
{
|
|
return fs::path(pszPath);
|
|
}
|
|
|
|
LogPrintf("SHGetSpecialFolderPathW() failed, could not obtain requested path.\n");
|
|
return fs::path("");
|
|
}
|
|
#endif
|
|
|
|
void runCommand(const std::string& strCommand)
|
|
{
|
|
if (strCommand.empty()) return;
|
|
#ifndef WIN32
|
|
int nErr = ::system(strCommand.c_str());
|
|
#else
|
|
int nErr = ::_wsystem(std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>,wchar_t>().from_bytes(strCommand).c_str());
|
|
#endif
|
|
if (nErr)
|
|
LogPrintf("runCommand error: system(%s) returned %d\n", strCommand, nErr);
|
|
}
|
|
|
|
void RenameThread(const char* name)
|
|
{
|
|
#if defined(PR_SET_NAME)
|
|
// Only the first 15 characters are used (16 - NUL terminator)
|
|
::prctl(PR_SET_NAME, name, 0, 0, 0);
|
|
#elif (defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__DragonFly__))
|
|
pthread_set_name_np(pthread_self(), name);
|
|
|
|
#elif defined(MAC_OSX)
|
|
pthread_setname_np(name);
|
|
#else
|
|
// Prevent warnings for unused parameters...
|
|
(void)name;
|
|
#endif
|
|
}
|
|
|
|
void SetupEnvironment()
|
|
{
|
|
#ifdef HAVE_MALLOPT_ARENA_MAX
|
|
// glibc-specific: On 32-bit systems set the number of arenas to 1.
|
|
// By default, since glibc 2.10, the C library will create up to two heap
|
|
// arenas per core. This is known to cause excessive virtual address space
|
|
// usage in our usage. Work around it by setting the maximum number of
|
|
// arenas to 1.
|
|
if (sizeof(void*) == 4) {
|
|
mallopt(M_ARENA_MAX, 1);
|
|
}
|
|
#endif
|
|
// On most POSIX systems (e.g. Linux, but not BSD) the environment's locale
|
|
// may be invalid, in which case the "C" locale is used as fallback.
|
|
#if !defined(WIN32) && !defined(MAC_OSX) && !defined(__FreeBSD__) && !defined(__OpenBSD__)
|
|
try {
|
|
std::locale(""); // Raises a runtime error if current locale is invalid
|
|
} catch (const std::runtime_error&) {
|
|
setenv("LC_ALL", "C", 1);
|
|
}
|
|
#elif defined(WIN32)
|
|
// Set the default input/output charset is utf-8
|
|
SetConsoleCP(CP_UTF8);
|
|
SetConsoleOutputCP(CP_UTF8);
|
|
#endif
|
|
// The path locale is lazy initialized and to avoid deinitialization errors
|
|
// in multithreading environments, it is set explicitly by the main thread.
|
|
// A dummy locale is used to extract the internal default locale, used by
|
|
// fs::path, which is then used to explicitly imbue the path.
|
|
std::locale loc = fs::path::imbue(std::locale::classic());
|
|
#ifndef WIN32
|
|
fs::path::imbue(loc);
|
|
#else
|
|
fs::path::imbue(std::locale(loc, new std::codecvt_utf8_utf16<wchar_t>()));
|
|
#endif
|
|
}
|
|
|
|
bool SetupNetworking()
|
|
{
|
|
#ifdef WIN32
|
|
// Initialize Windows Sockets
|
|
WSADATA wsadata;
|
|
int ret = WSAStartup(MAKEWORD(2,2), &wsadata);
|
|
if (ret != NO_ERROR || LOBYTE(wsadata.wVersion ) != 2 || HIBYTE(wsadata.wVersion) != 2)
|
|
return false;
|
|
#endif
|
|
return true;
|
|
}
|
|
|
|
int GetNumCores()
|
|
{
|
|
return std::thread::hardware_concurrency();
|
|
}
|
|
|
|
std::string CopyrightHolders(const std::string& strPrefix)
|
|
{
|
|
std::string strCopyrightHolders = strPrefix + strprintf(_(COPYRIGHT_HOLDERS), _(COPYRIGHT_HOLDERS_SUBSTITUTION));
|
|
|
|
// Check for untranslated substitution to make sure Bitcoin Core copyright is not removed by accident
|
|
if (strprintf(COPYRIGHT_HOLDERS, COPYRIGHT_HOLDERS_SUBSTITUTION).find("Bitcoin Core") == std::string::npos) {
|
|
strCopyrightHolders += "\n" + strPrefix + "The Bitcoin Core developers";
|
|
}
|
|
return strCopyrightHolders;
|
|
}
|
|
|
|
// Obtain the application startup time (used for uptime calculation)
|
|
int64_t GetStartupTime()
|
|
{
|
|
return nStartupTime;
|
|
}
|
|
|
|
fs::path AbsPathForConfigVal(const fs::path& path, bool net_specific)
|
|
{
|
|
return fs::absolute(path, GetDataDir(net_specific));
|
|
}
|
|
|
|
int ScheduleBatchPriority()
|
|
{
|
|
#ifdef SCHED_BATCH
|
|
const static sched_param param{0};
|
|
if (int ret = pthread_setschedparam(pthread_self(), SCHED_BATCH, ¶m)) {
|
|
LogPrintf("Failed to pthread_setschedparam: %s\n", strerror(errno));
|
|
return ret;
|
|
}
|
|
return 0;
|
|
#else
|
|
return 1;
|
|
#endif
|
|
}
|
|
|
|
namespace util {
|
|
#ifdef WIN32
|
|
WinCmdLineArgs::WinCmdLineArgs()
|
|
{
|
|
wchar_t** wargv = CommandLineToArgvW(GetCommandLineW(), &argc);
|
|
std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>, wchar_t> utf8_cvt;
|
|
argv = new char*[argc];
|
|
args.resize(argc);
|
|
for (int i = 0; i < argc; i++) {
|
|
args[i] = utf8_cvt.to_bytes(wargv[i]);
|
|
argv[i] = &*args[i].begin();
|
|
}
|
|
LocalFree(wargv);
|
|
}
|
|
|
|
WinCmdLineArgs::~WinCmdLineArgs()
|
|
{
|
|
delete[] argv;
|
|
}
|
|
|
|
std::pair<int, char**> WinCmdLineArgs::get()
|
|
{
|
|
return std::make_pair(argc, argv);
|
|
}
|
|
#endif
|
|
} // namespace util
|