952 lines
29 KiB
C++
952 lines
29 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2015 The Bitcoin Core developers
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// Copyright (c) 2014-2017 The Dash Core developers
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// Copyright (c) 2021-2024 The NeoBytes 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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#if defined(HAVE_CONFIG_H)
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#include "config/neobytes-config.h"
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#endif
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#include "util.h"
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#include "support/allocators/secure.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 "sync.h"
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#include "utilstrencodings.h"
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#include "utiltime.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 <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 <io.h> /* for _commit */
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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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#include <boost/algorithm/string/case_conv.hpp> // for to_lower()
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#include <boost/algorithm/string/join.hpp>
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#include <boost/algorithm/string/predicate.hpp> // for startswith() and endswith()
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#include <boost/filesystem.hpp>
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#include <boost/filesystem/fstream.hpp>
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#include <boost/foreach.hpp>
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#include <boost/program_options/detail/config_file.hpp>
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#include <boost/program_options/parsers.hpp>
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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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// Work around clang compilation problem in Boost 1.46:
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// /usr/include/boost/program_options/detail/config_file.hpp:163:17: error: call to function 'to_internal' that is neither visible in the template definition nor found by argument-dependent lookup
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// See also: http://stackoverflow.com/questions/10020179/compilation-fail-in-boost-librairies-program-options
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// http://clang.debian.net/status.php?version=3.0&key=CANNOT_FIND_FUNCTION
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namespace boost {
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namespace program_options {
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std::string to_internal(const std::string&);
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}
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} // namespace boost
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using namespace std;
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//NeoBytes only features
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bool fMasterNode = false;
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bool fLiteMode = false;
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/**
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nWalletBackups:
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1..10 - number of automatic backups to keep
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0 - disabled by command-line
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-1 - disabled because of some error during run-time
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-2 - disabled because wallet was locked and we were not able to replenish keypool
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*/
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int nWalletBackups = 10;
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const char * const BITCOIN_CONF_FILENAME = "neobytes.conf";
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const char * const BITCOIN_PID_FILENAME = "neobytesd.pid";
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map<string, string> mapArgs;
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map<string, vector<string> > mapMultiArgs;
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bool fDebug = false;
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bool fPrintToConsole = false;
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bool fPrintToDebugLog = true;
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bool fDaemon = false;
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bool fServer = false;
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string strMiscWarning;
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bool fLogTimestamps = DEFAULT_LOGTIMESTAMPS;
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bool fLogTimeMicros = DEFAULT_LOGTIMEMICROS;
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bool fLogThreadNames = DEFAULT_LOGTHREADNAMES;
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bool fLogIPs = DEFAULT_LOGIPS;
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volatile bool fReopenDebugLog = false;
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CTranslationInterface translationInterface;
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/** Init OpenSSL library multithreading support */
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static 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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// Init
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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 = (CCriticalSection**)OPENSSL_malloc(CRYPTO_num_locks() * sizeof(CCriticalSection*));
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for (int i = 0; i < CRYPTO_num_locks(); i++)
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ppmutexOpenSSL[i] = new CCriticalSection();
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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(NULL);
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for (int i = 0; i < CRYPTO_num_locks(); i++)
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delete ppmutexOpenSSL[i];
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OPENSSL_free(ppmutexOpenSSL);
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}
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}
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instance_of_cinit;
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/**
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* LogPrintf() has been broken a couple of times now
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* by well-meaning people adding mutexes in the most straightforward way.
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* It breaks because it may be called by global destructors during shutdown.
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* Since the order of destruction of static/global objects is undefined,
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* defining a mutex as a global object doesn't work (the mutex gets
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* destroyed, and then some later destructor calls OutputDebugStringF,
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* maybe indirectly, and you get a core dump at shutdown trying to lock
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* the mutex).
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*/
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static boost::once_flag debugPrintInitFlag = BOOST_ONCE_INIT;
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/**
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* We use boost::call_once() to make sure mutexDebugLog and
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* vMsgsBeforeOpenLog are initialized in a thread-safe manner.
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*
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* NOTE: fileout, mutexDebugLog and sometimes vMsgsBeforeOpenLog
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* are leaked on exit. This is ugly, but will be cleaned up by
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* the OS/libc. When the shutdown sequence is fully audited and
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* tested, explicit destruction of these objects can be implemented.
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*/
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static FILE* fileout = NULL;
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static boost::mutex* mutexDebugLog = NULL;
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static list<string> *vMsgsBeforeOpenLog;
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static int FileWriteStr(const std::string &str, FILE *fp)
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{
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return fwrite(str.data(), 1, str.size(), fp);
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}
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static void DebugPrintInit()
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{
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assert(mutexDebugLog == NULL);
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mutexDebugLog = new boost::mutex();
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vMsgsBeforeOpenLog = new list<string>;
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}
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void OpenDebugLog()
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{
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boost::call_once(&DebugPrintInit, debugPrintInitFlag);
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boost::mutex::scoped_lock scoped_lock(*mutexDebugLog);
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assert(fileout == NULL);
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assert(vMsgsBeforeOpenLog);
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boost::filesystem::path pathDebug = GetDataDir() / "debug.log";
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fileout = fopen(pathDebug.string().c_str(), "a");
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if (fileout) setbuf(fileout, NULL); // unbuffered
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// dump buffered messages from before we opened the log
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while (!vMsgsBeforeOpenLog->empty()) {
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FileWriteStr(vMsgsBeforeOpenLog->front(), fileout);
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vMsgsBeforeOpenLog->pop_front();
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}
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delete vMsgsBeforeOpenLog;
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vMsgsBeforeOpenLog = NULL;
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}
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bool LogAcceptCategory(const char* category)
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{
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if (category != NULL)
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{
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// Give each thread quick access to -debug settings.
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// This helps prevent issues debugging global destructors,
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// where mapMultiArgs might be deleted before another
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// global destructor calls LogPrint()
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static boost::thread_specific_ptr<set<string> > ptrCategory;
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if (!fDebug) {
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if (ptrCategory.get() != NULL) {
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LogPrintf("debug turned off: thread %s\n", GetThreadName());
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ptrCategory.release();
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}
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return false;
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}
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if (ptrCategory.get() == NULL)
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{
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std::string strThreadName = GetThreadName();
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LogPrintf("debug turned on:\n");
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for (int i = 0; i < (int)mapMultiArgs["-debug"].size(); ++i)
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LogPrintf(" thread %s category %s\n", strThreadName, mapMultiArgs["-debug"][i]);
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const vector<string>& categories = mapMultiArgs["-debug"];
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ptrCategory.reset(new set<string>(categories.begin(), categories.end()));
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// thread_specific_ptr automatically deletes the set when the thread ends.
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// "neobytes" is a composite category enabling all NeoBytes-related debug output
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if(ptrCategory->count(string("neobytes"))) {
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ptrCategory->insert(string("privatesend"));
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ptrCategory->insert(string("instantsend"));
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ptrCategory->insert(string("masternode"));
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ptrCategory->insert(string("spork"));
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ptrCategory->insert(string("keepass"));
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ptrCategory->insert(string("mnpayments"));
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ptrCategory->insert(string("gobject"));
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}
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}
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const set<string>& setCategories = *ptrCategory.get();
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// if not debugging everything and not debugging specific category, LogPrint does nothing.
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if (setCategories.count(string("")) == 0 &&
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setCategories.count(string("1")) == 0 &&
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setCategories.count(string(category)) == 0)
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return false;
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}
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return true;
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}
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/**
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* fStartedNewLine is a state variable held by the calling context that will
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* suppress printing of the timestamp when multiple calls are made that don't
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* end in a newline. Initialize it to true, and hold/manage it, in the calling context.
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*/
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static std::string LogTimestampStr(const std::string &str, bool *fStartedNewLine)
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{
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string strStamped;
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if (!fLogTimestamps)
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return str;
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if (*fStartedNewLine) {
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int64_t nTimeMicros = GetLogTimeMicros();
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strStamped = DateTimeStrFormat("%Y-%m-%d %H:%M:%S", nTimeMicros/1000000);
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if (fLogTimeMicros)
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strStamped += strprintf(".%06d", nTimeMicros%1000000);
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strStamped += ' ' + str;
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} else
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strStamped = str;
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return strStamped;
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}
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/**
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* fStartedNewLine is a state variable held by the calling context that will
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* suppress printing of the thread name when multiple calls are made that don't
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* end in a newline. Initialize it to true, and hold/manage it, in the calling context.
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*/
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static std::string LogThreadNameStr(const std::string &str, bool *fStartedNewLine)
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{
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string strThreadLogged;
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if (!fLogThreadNames)
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return str;
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std::string strThreadName = GetThreadName();
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if (*fStartedNewLine)
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strThreadLogged = strprintf("%16s | %s", strThreadName.c_str(), str.c_str());
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else
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strThreadLogged = str;
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return strThreadLogged;
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}
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int LogPrintStr(const std::string &str)
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{
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int ret = 0; // Returns total number of characters written
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static bool fStartedNewLine = true;
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std::string strThreadLogged = LogThreadNameStr(str, &fStartedNewLine);
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std::string strTimestamped = LogTimestampStr(strThreadLogged, &fStartedNewLine);
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if (!str.empty() && str[str.size()-1] == '\n')
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fStartedNewLine = true;
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else
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fStartedNewLine = false;
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if (fPrintToConsole)
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{
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// print to console
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ret = fwrite(strTimestamped.data(), 1, strTimestamped.size(), stdout);
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fflush(stdout);
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}
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else if (fPrintToDebugLog)
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{
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boost::call_once(&DebugPrintInit, debugPrintInitFlag);
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boost::mutex::scoped_lock scoped_lock(*mutexDebugLog);
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// buffer if we haven't opened the log yet
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if (fileout == NULL) {
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assert(vMsgsBeforeOpenLog);
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ret = strTimestamped.length();
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vMsgsBeforeOpenLog->push_back(strTimestamped);
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}
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else
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{
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// reopen the log file, if requested
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if (fReopenDebugLog) {
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fReopenDebugLog = false;
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boost::filesystem::path pathDebug = GetDataDir() / "debug.log";
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if (freopen(pathDebug.string().c_str(),"a",fileout) != NULL)
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setbuf(fileout, NULL); // unbuffered
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}
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ret = FileWriteStr(strTimestamped, fileout);
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}
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}
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return ret;
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}
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/** Interpret string as boolean, for argument parsing */
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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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/** Turn -noX into -X=0 */
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static void InterpretNegativeSetting(std::string& strKey, std::string& strValue)
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{
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if (strKey.length()>3 && strKey[0]=='-' && strKey[1]=='n' && strKey[2]=='o')
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{
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strKey = "-" + strKey.substr(3);
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strValue = InterpretBool(strValue) ? "0" : "1";
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}
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}
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void ParseParameters(int argc, const char* const argv[])
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{
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mapArgs.clear();
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mapMultiArgs.clear();
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for (int i = 1; i < argc; i++)
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{
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std::string str(argv[i]);
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std::string strValue;
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size_t is_index = str.find('=');
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if (is_index != std::string::npos)
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{
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strValue = str.substr(is_index+1);
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str = str.substr(0, is_index);
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}
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#ifdef WIN32
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boost::to_lower(str);
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if (boost::algorithm::starts_with(str, "/"))
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str = "-" + str.substr(1);
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#endif
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if (str[0] != '-')
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break;
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// Interpret --foo as -foo.
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// If both --foo and -foo are set, the last takes effect.
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if (str.length() > 1 && str[1] == '-')
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str = str.substr(1);
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InterpretNegativeSetting(str, strValue);
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mapArgs[str] = strValue;
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mapMultiArgs[str].push_back(strValue);
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}
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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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if (mapArgs.count(strArg))
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return mapArgs[strArg];
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return strDefault;
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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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if (mapArgs.count(strArg))
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return atoi64(mapArgs[strArg]);
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return nDefault;
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}
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bool GetBoolArg(const std::string& strArg, bool fDefault)
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{
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if (mapArgs.count(strArg))
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return InterpretBool(mapArgs[strArg]);
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return fDefault;
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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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if (mapArgs.count(strArg))
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return false;
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mapArgs[strArg] = strValue;
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return true;
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}
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bool SoftSetBoolArg(const std::string& strArg, bool fValue)
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{
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if (fValue)
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return SoftSetArg(strArg, std::string("1"));
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else
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return SoftSetArg(strArg, std::string("0"));
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}
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static const int screenWidth = 79;
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static const int optIndent = 2;
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static const int msgIndent = 7;
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std::string HelpMessageGroup(const std::string &message) {
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return std::string(message) + std::string("\n\n");
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}
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std::string HelpMessageOpt(const std::string &option, const std::string &message) {
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return std::string(optIndent,' ') + std::string(option) +
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std::string("\n") + std::string(msgIndent,' ') +
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FormatParagraph(message, screenWidth - msgIndent, msgIndent) +
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std::string("\n\n");
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}
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static std::string FormatException(const std::exception* pex, const char* pszThread)
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{
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#ifdef WIN32
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char pszModule[MAX_PATH] = "";
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GetModuleFileNameA(NULL, pszModule, sizeof(pszModule));
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#else
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const char* pszModule = "neobytes";
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#endif
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if (pex)
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return strprintf(
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"EXCEPTION: %s \n%s \n%s in %s \n", typeid(*pex).name(), pex->what(), pszModule, pszThread);
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else
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return strprintf(
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"UNKNOWN EXCEPTION \n%s in %s \n", pszModule, pszThread);
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}
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void PrintExceptionContinue(const std::exception* pex, const char* pszThread)
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{
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std::string message = FormatException(pex, pszThread);
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LogPrintf("\n\n************************\n%s\n", message);
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fprintf(stderr, "\n\n************************\n%s\n", message.c_str());
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}
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boost::filesystem::path GetDefaultDataDir()
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{
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namespace fs = boost::filesystem;
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// Windows < Vista: C:\Documents and Settings\Username\Application Data\NeoBytesCore
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// Windows >= Vista: C:\Users\Username\AppData\Roaming\NeoBytesCore
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// Mac: ~/Library/Application Support/NeoBytesCore
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// Unix: ~/.neobytescore
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#ifdef WIN32
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// Windows
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return GetSpecialFolderPath(CSIDL_APPDATA) / "NeoBytesCore";
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#else
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fs::path pathRet;
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char* pszHome = getenv("HOME");
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if (pszHome == NULL || strlen(pszHome) == 0)
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pathRet = fs::path("/");
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else
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pathRet = fs::path(pszHome);
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#ifdef MAC_OSX
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// Mac
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return pathRet / "Library/Application Support/NeoBytesCore";
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#else
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// Unix
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return pathRet / ".neobytescore";
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#endif
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#endif
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}
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static boost::filesystem::path pathCached;
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static boost::filesystem::path pathCachedNetSpecific;
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static CCriticalSection csPathCached;
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const boost::filesystem::path &GetDataDir(bool fNetSpecific)
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{
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namespace fs = boost::filesystem;
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LOCK(csPathCached);
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fs::path &path = fNetSpecific ? pathCachedNetSpecific : pathCached;
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// This can be called during exceptions by LogPrintf(), so we cache the
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// value so we don't have to do memory allocations after that.
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if (!path.empty())
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return path;
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if (mapArgs.count("-datadir")) {
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path = fs::system_complete(mapArgs["-datadir"]);
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if (!fs::is_directory(path)) {
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path = "";
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return path;
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}
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} else {
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path = GetDefaultDataDir();
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}
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if (fNetSpecific)
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path /= BaseParams().DataDir();
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fs::create_directories(path);
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return path;
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}
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static boost::filesystem::path backupsDirCached;
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static CCriticalSection csBackupsDirCached;
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const boost::filesystem::path &GetBackupsDir()
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{
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namespace fs = boost::filesystem;
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LOCK(csBackupsDirCached);
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fs::path &backupsDir = backupsDirCached;
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if (!backupsDir.empty())
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return backupsDir;
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if (mapArgs.count("-walletbackupsdir")) {
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backupsDir = fs::absolute(mapArgs["-walletbackupsdir"]);
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// Path must exist
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if (fs::is_directory(backupsDir)) return backupsDir;
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// Fallback to default path if it doesn't
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LogPrintf("%s: Warning: incorrect parameter -walletbackupsdir, path must exist! Using default path.\n", __func__);
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strMiscWarning = _("Warning: incorrect parameter -walletbackupsdir, path must exist! Using default path.");
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}
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// Default path
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backupsDir = GetDataDir() / "backups";
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return backupsDir;
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}
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void ClearDatadirCache()
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{
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pathCached = boost::filesystem::path();
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pathCachedNetSpecific = boost::filesystem::path();
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}
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boost::filesystem::path GetConfigFile()
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{
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boost::filesystem::path pathConfigFile(GetArg("-conf", BITCOIN_CONF_FILENAME));
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if (!pathConfigFile.is_complete())
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pathConfigFile = GetDataDir(false) / pathConfigFile;
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return pathConfigFile;
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}
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boost::filesystem::path GetMasternodeConfigFile()
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{
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boost::filesystem::path pathConfigFile(GetArg("-mnconf", "masternode.conf"));
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if (!pathConfigFile.is_complete()) pathConfigFile = GetDataDir() / pathConfigFile;
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return pathConfigFile;
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}
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void ReadConfigFile(map<string, string>& mapSettingsRet,
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map<string, vector<string> >& mapMultiSettingsRet)
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{
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boost::filesystem::ifstream streamConfig(GetConfigFile());
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if (!streamConfig.good()){
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// Create empty neobytes.conf if it does not excist
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FILE* configFile = fopen(GetConfigFile().string().c_str(), "a");
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if (configFile != NULL)
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fclose(configFile);
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return; // Nothing to read, so just return
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}
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set<string> setOptions;
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setOptions.insert("*");
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for (boost::program_options::detail::config_file_iterator it(streamConfig, setOptions), end; it != end; ++it)
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{
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// Don't overwrite existing settings so command line settings override neobytes.conf
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string strKey = string("-") + it->string_key;
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string strValue = it->value[0];
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InterpretNegativeSetting(strKey, strValue);
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if (mapSettingsRet.count(strKey) == 0)
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mapSettingsRet[strKey] = strValue;
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mapMultiSettingsRet[strKey].push_back(strValue);
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}
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// If datadir is changed in .conf file:
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ClearDatadirCache();
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}
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#ifndef WIN32
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boost::filesystem::path GetPidFile()
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{
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boost::filesystem::path pathPidFile(GetArg("-pid", BITCOIN_PID_FILENAME));
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if (!pathPidFile.is_complete()) pathPidFile = GetDataDir() / pathPidFile;
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return pathPidFile;
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}
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void CreatePidFile(const boost::filesystem::path &path, pid_t pid)
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{
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FILE* file = fopen(path.string().c_str(), "w");
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if (file)
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{
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fprintf(file, "%d\n", pid);
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fclose(file);
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}
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}
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#endif
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bool RenameOver(boost::filesystem::path src, boost::filesystem::path dest)
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{
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#ifdef WIN32
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return MoveFileExA(src.string().c_str(), dest.string().c_str(),
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MOVEFILE_REPLACE_EXISTING) != 0;
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#else
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int rc = std::rename(src.string().c_str(), dest.string().c_str());
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return (rc == 0);
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#endif /* WIN32 */
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}
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/**
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* Ignores exceptions thrown by Boost's create_directory if the requested directory exists.
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* Specifically handles case where path p exists, but it wasn't possible for the user to
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* write to the parent directory.
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*/
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bool TryCreateDirectory(const boost::filesystem::path& p)
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{
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try
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{
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return boost::filesystem::create_directory(p);
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} catch (const boost::filesystem::filesystem_error&) {
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if (!boost::filesystem::exists(p) || !boost::filesystem::is_directory(p))
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throw;
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}
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// create_directory didn't create the directory, it had to have existed already
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return false;
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}
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void FileCommit(FILE *fileout)
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{
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fflush(fileout); // harmless if redundantly called
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#ifdef WIN32
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HANDLE hFile = (HANDLE)_get_osfhandle(_fileno(fileout));
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FlushFileBuffers(hFile);
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#else
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#if defined(__linux__) || defined(__NetBSD__)
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fdatasync(fileno(fileout));
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#elif defined(__APPLE__) && defined(F_FULLFSYNC)
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fcntl(fileno(fileout), F_FULLFSYNC, 0);
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#else
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fsync(fileno(fileout));
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#endif
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#endif
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}
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bool TruncateFile(FILE *file, unsigned int length) {
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#if defined(WIN32)
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return _chsize(_fileno(file), length) == 0;
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#else
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return ftruncate(fileno(file), length) == 0;
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#endif
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}
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/**
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* this function tries to raise the file descriptor limit to the requested number.
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* It returns the actual file descriptor limit (which may be more or less than nMinFD)
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*/
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int RaiseFileDescriptorLimit(int nMinFD) {
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#if defined(WIN32)
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return 2048;
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#else
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struct rlimit limitFD;
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if (getrlimit(RLIMIT_NOFILE, &limitFD) != -1) {
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if (limitFD.rlim_cur < (rlim_t)nMinFD) {
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limitFD.rlim_cur = nMinFD;
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if (limitFD.rlim_cur > limitFD.rlim_max)
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limitFD.rlim_cur = limitFD.rlim_max;
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setrlimit(RLIMIT_NOFILE, &limitFD);
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getrlimit(RLIMIT_NOFILE, &limitFD);
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}
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return limitFD.rlim_cur;
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}
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return nMinFD; // getrlimit failed, assume it's fine
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#endif
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}
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/**
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* this function tries to make a particular range of a file allocated (corresponding to disk space)
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* it is advisory, and the range specified in the arguments will never contain live data
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*/
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void AllocateFileRange(FILE *file, unsigned int offset, unsigned int length) {
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#if defined(WIN32)
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// Windows-specific version
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HANDLE hFile = (HANDLE)_get_osfhandle(_fileno(file));
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LARGE_INTEGER nFileSize;
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int64_t nEndPos = (int64_t)offset + length;
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nFileSize.u.LowPart = nEndPos & 0xFFFFFFFF;
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nFileSize.u.HighPart = nEndPos >> 32;
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SetFilePointerEx(hFile, nFileSize, 0, FILE_BEGIN);
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SetEndOfFile(hFile);
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#elif defined(MAC_OSX)
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// OSX specific version
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fstore_t fst;
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fst.fst_flags = F_ALLOCATECONTIG;
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fst.fst_posmode = F_PEOFPOSMODE;
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fst.fst_offset = 0;
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fst.fst_length = (off_t)offset + length;
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fst.fst_bytesalloc = 0;
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if (fcntl(fileno(file), F_PREALLOCATE, &fst) == -1) {
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fst.fst_flags = F_ALLOCATEALL;
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fcntl(fileno(file), F_PREALLOCATE, &fst);
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}
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ftruncate(fileno(file), fst.fst_length);
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#elif defined(__linux__)
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// Version using posix_fallocate
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off_t nEndPos = (off_t)offset + length;
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posix_fallocate(fileno(file), 0, nEndPos);
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#else
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// Fallback version
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// TODO: just write one byte per block
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static const char buf[65536] = {};
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fseek(file, offset, SEEK_SET);
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while (length > 0) {
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unsigned int now = 65536;
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if (length < now)
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now = length;
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fwrite(buf, 1, now, file); // allowed to fail; this function is advisory anyway
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length -= now;
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}
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#endif
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}
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void ShrinkDebugFile()
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{
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// Scroll debug.log if it's getting too big
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boost::filesystem::path pathLog = GetDataDir() / "debug.log";
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FILE* file = fopen(pathLog.string().c_str(), "r");
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if (file && boost::filesystem::file_size(pathLog) > 10 * 1000000)
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{
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// Restart the file with some of the end
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std::vector <char> vch(200000,0);
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fseek(file, -((long)vch.size()), SEEK_END);
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int nBytes = fread(begin_ptr(vch), 1, vch.size(), file);
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fclose(file);
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file = fopen(pathLog.string().c_str(), "w");
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if (file)
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{
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fwrite(begin_ptr(vch), 1, nBytes, file);
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fclose(file);
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}
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}
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else if (file != NULL)
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fclose(file);
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}
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#ifdef WIN32
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boost::filesystem::path GetSpecialFolderPath(int nFolder, bool fCreate)
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{
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namespace fs = boost::filesystem;
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char pszPath[MAX_PATH] = "";
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if(SHGetSpecialFolderPathA(NULL, pszPath, nFolder, fCreate))
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{
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return fs::path(pszPath);
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}
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LogPrintf("SHGetSpecialFolderPathA() failed, could not obtain requested path.\n");
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return fs::path("");
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}
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#endif
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boost::filesystem::path GetTempPath() {
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#if BOOST_FILESYSTEM_VERSION == 3
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return boost::filesystem::temp_directory_path();
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#else
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// TODO: remove when we don't support filesystem v2 anymore
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boost::filesystem::path path;
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#ifdef WIN32
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char pszPath[MAX_PATH] = "";
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if (GetTempPathA(MAX_PATH, pszPath))
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path = boost::filesystem::path(pszPath);
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#else
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path = boost::filesystem::path("/tmp");
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#endif
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if (path.empty() || !boost::filesystem::is_directory(path)) {
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LogPrintf("GetTempPath(): failed to find temp path\n");
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return boost::filesystem::path("");
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}
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return path;
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#endif
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}
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void runCommand(const std::string& strCommand)
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{
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int nErr = ::system(strCommand.c_str());
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if (nErr)
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LogPrintf("runCommand error: system(%s) returned %d\n", strCommand, nErr);
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}
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void RenameThread(const char* name)
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{
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#if defined(PR_SET_NAME)
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// Only the first 15 characters are used (16 - NUL terminator)
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::prctl(PR_SET_NAME, name, 0, 0, 0);
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#elif (defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__DragonFly__))
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pthread_set_name_np(pthread_self(), name);
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#elif defined(MAC_OSX)
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pthread_setname_np(name);
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#else
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// Prevent warnings for unused parameters...
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(void)name;
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#endif
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}
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std::string GetThreadName()
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{
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char name[16];
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#if defined(PR_GET_NAME)
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// Only the first 15 characters are used (16 - NUL terminator)
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::prctl(PR_GET_NAME, name, 0, 0, 0);
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#elif defined(MAC_OSX)
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pthread_getname_np(pthread_self(), name, 16);
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// #elif (defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__DragonFly__))
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// #else
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// no get_name here
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#endif
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return std::string(name);
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}
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|
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void SetupEnvironment()
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{
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// On most POSIX systems (e.g. Linux, but not BSD) the environment's locale
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// may be invalid, in which case the "C" locale is used as fallback.
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#if !defined(WIN32) && !defined(MAC_OSX) && !defined(__FreeBSD__) && !defined(__OpenBSD__)
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try {
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std::locale(""); // Raises a runtime error if current locale is invalid
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} catch (const std::runtime_error&) {
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setenv("LC_ALL", "C", 1);
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}
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#endif
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// The path locale is lazy initialized and to avoid deinitialization errors
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// in multithreading environments, it is set explicitly by the main thread.
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// A dummy locale is used to extract the internal default locale, used by
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// boost::filesystem::path, which is then used to explicitly imbue the path.
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std::locale loc = boost::filesystem::path::imbue(std::locale::classic());
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boost::filesystem::path::imbue(loc);
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}
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|
|
bool SetupNetworking()
|
|
{
|
|
#ifdef WIN32
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|
// Initialize Windows Sockets
|
|
WSADATA wsadata;
|
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int ret = WSAStartup(MAKEWORD(2,2), &wsadata);
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if (ret != NO_ERROR || LOBYTE(wsadata.wVersion ) != 2 || HIBYTE(wsadata.wVersion) != 2)
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return false;
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|
#endif
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|
return true;
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}
|
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|
|
void SetThreadPriority(int nPriority)
|
|
{
|
|
#ifdef WIN32
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|
SetThreadPriority(GetCurrentThread(), nPriority);
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|
#else // WIN32
|
|
#ifdef PRIO_THREAD
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|
setpriority(PRIO_THREAD, 0, nPriority);
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|
#else // PRIO_THREAD
|
|
setpriority(PRIO_PROCESS, 0, nPriority);
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|
#endif // PRIO_THREAD
|
|
#endif // WIN32
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|
}
|
|
|
|
int GetNumCores()
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|
{
|
|
#if BOOST_VERSION >= 105600
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|
return boost::thread::physical_concurrency();
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|
#else // Must fall back to hardware_concurrency, which unfortunately counts virtual cores
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|
return boost::thread::hardware_concurrency();
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|
#endif
|
|
}
|
|
|