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Diffstat (limited to 'depedencies/src/easylogging++.cc')
| -rw-r--r-- | depedencies/src/easylogging++.cc | 2982 |
1 files changed, 2982 insertions, 0 deletions
diff --git a/depedencies/src/easylogging++.cc b/depedencies/src/easylogging++.cc new file mode 100644 index 0000000..dea51a7 --- /dev/null +++ b/depedencies/src/easylogging++.cc @@ -0,0 +1,2982 @@ +// +// Bismillah ar-Rahmaan ar-Raheem +// +// Easylogging++ v9.94.2 +// Cross-platform logging library for C++ applications +// +// Copyright (c) 2017 muflihun.com +// +// This library is released under the MIT Licence. +// http://labs.muflihun.com/easyloggingpp/licence.php +// +// https://github.com/muflihun/easyloggingpp +// https://muflihun.github.io/easyloggingpp +// http://muflihun.com +// + +#include "easylogging++.h" + +#if defined(AUTO_INITIALIZE_EASYLOGGINGPP) +INITIALIZE_EASYLOGGINGPP +#endif + +namespace el { + +// el::base::utils +namespace base { +namespace utils { + +/// @brief Aborts application due with user-defined status +static void abort(int status, const std::string& reason) { + // Both status and reason params are there for debugging with tools like gdb etc + ELPP_UNUSED(status); + ELPP_UNUSED(reason); +#if defined(ELPP_COMPILER_MSVC) && defined(_M_IX86) && defined(_DEBUG) + // Ignore msvc critical error dialog - break instead (on debug mode) + _asm int 3 +#else + ::abort(); +#endif // defined(ELPP_COMPILER_MSVC) && defined(_M_IX86) && defined(_DEBUG) +} + +} // namespace utils +} // namespace base + +// el + +// LevelHelper + +const char* LevelHelper::convertToString(Level level) { + // Do not use switch over strongly typed enums because Intel C++ compilers dont support them yet. + if (level == Level::Global) return "GLOBAL"; + if (level == Level::Debug) return "DEBUG"; + if (level == Level::Info) return "INFO"; + if (level == Level::Warning) return "WARNING"; + if (level == Level::Error) return "ERROR"; + if (level == Level::Fatal) return "FATAL"; + if (level == Level::Verbose) return "VERBOSE"; + if (level == Level::Trace) return "TRACE"; + return "UNKNOWN"; +} + +struct StringToLevelItem { + const char* levelString; + Level level; +}; + +static struct StringToLevelItem stringToLevelMap[] = { + { "global", Level::Global }, + { "debug", Level::Debug }, + { "info", Level::Info }, + { "warning", Level::Warning }, + { "error", Level::Error }, + { "fatal", Level::Fatal }, + { "verbose", Level::Verbose }, + { "trace", Level::Trace } +}; + +Level LevelHelper::convertFromString(const char* levelStr) { + for (auto& item : stringToLevelMap) { + if (base::utils::Str::cStringCaseEq(levelStr, item.levelString)) { + return item.level; + } + } + return Level::Unknown; +} + +void LevelHelper::forEachLevel(base::type::EnumType* startIndex, const std::function<bool(void)>& fn) { + base::type::EnumType lIndexMax = LevelHelper::kMaxValid; + do { + if (fn()) { + break; + } + *startIndex = static_cast<base::type::EnumType>(*startIndex << 1); + } while (*startIndex <= lIndexMax); +} + +// ConfigurationTypeHelper + +const char* ConfigurationTypeHelper::convertToString(ConfigurationType configurationType) { + // Do not use switch over strongly typed enums because Intel C++ compilers dont support them yet. + if (configurationType == ConfigurationType::Enabled) return "ENABLED"; + if (configurationType == ConfigurationType::Filename) return "FILENAME"; + if (configurationType == ConfigurationType::Format) return "FORMAT"; + if (configurationType == ConfigurationType::ToFile) return "TO_FILE"; + if (configurationType == ConfigurationType::ToStandardOutput) return "TO_STANDARD_OUTPUT"; + if (configurationType == ConfigurationType::SubsecondPrecision) return "SUBSECOND_PRECISION"; + if (configurationType == ConfigurationType::PerformanceTracking) return "PERFORMANCE_TRACKING"; + if (configurationType == ConfigurationType::MaxLogFileSize) return "MAX_LOG_FILE_SIZE"; + if (configurationType == ConfigurationType::LogFlushThreshold) return "LOG_FLUSH_THRESHOLD"; + return "UNKNOWN"; +} + +struct ConfigurationStringToTypeItem { + const char* configString; + ConfigurationType configType; +}; + +static struct ConfigurationStringToTypeItem configStringToTypeMap[] = { + { "enabled", ConfigurationType::Enabled }, + { "to_file", ConfigurationType::ToFile }, + { "to_standard_output", ConfigurationType::ToStandardOutput }, + { "format", ConfigurationType::Format }, + { "filename", ConfigurationType::Filename }, + { "subsecond_precision", ConfigurationType::SubsecondPrecision }, + { "milliseconds_width", ConfigurationType::MillisecondsWidth }, + { "performance_tracking", ConfigurationType::PerformanceTracking }, + { "max_log_file_size", ConfigurationType::MaxLogFileSize }, + { "log_flush_threshold", ConfigurationType::LogFlushThreshold }, +}; + +ConfigurationType ConfigurationTypeHelper::convertFromString(const char* configStr) { + for (auto& item : configStringToTypeMap) { + if (base::utils::Str::cStringCaseEq(configStr, item.configString)) { + return item.configType; + } + } + return ConfigurationType::Unknown; +} + +void ConfigurationTypeHelper::forEachConfigType(base::type::EnumType* startIndex, const std::function<bool(void)>& fn) { + base::type::EnumType cIndexMax = ConfigurationTypeHelper::kMaxValid; + do { + if (fn()) { + break; + } + *startIndex = static_cast<base::type::EnumType>(*startIndex << 1); + } while (*startIndex <= cIndexMax); +} + +// Configuration + +Configuration::Configuration(const Configuration& c) : + m_level(c.m_level), + m_configurationType(c.m_configurationType), + m_value(c.m_value) { +} + +Configuration& Configuration::operator=(const Configuration& c) { + if (&c != this) { + m_level = c.m_level; + m_configurationType = c.m_configurationType; + m_value = c.m_value; + } + return *this; +} + +/// @brief Full constructor used to sets value of configuration +Configuration::Configuration(Level level, ConfigurationType configurationType, const std::string& value) : + m_level(level), + m_configurationType(configurationType), + m_value(value) { +} + +void Configuration::log(el::base::type::ostream_t& os) const { + os << LevelHelper::convertToString(m_level) + << ELPP_LITERAL(" ") << ConfigurationTypeHelper::convertToString(m_configurationType) + << ELPP_LITERAL(" = ") << m_value.c_str(); +} + +/// @brief Used to find configuration from configuration (pointers) repository. Avoid using it. +Configuration::Predicate::Predicate(Level level, ConfigurationType configurationType) : + m_level(level), + m_configurationType(configurationType) { +} + +bool Configuration::Predicate::operator()(const Configuration* conf) const { + return ((conf != nullptr) && (conf->level() == m_level) && (conf->configurationType() == m_configurationType)); +} + +// Configurations + +Configurations::Configurations(void) : + m_configurationFile(std::string()), + m_isFromFile(false) { +} + +Configurations::Configurations(const std::string& configurationFile, bool useDefaultsForRemaining, + Configurations* base) : + m_configurationFile(configurationFile), + m_isFromFile(false) { + parseFromFile(configurationFile, base); + if (useDefaultsForRemaining) { + setRemainingToDefault(); + } +} + +bool Configurations::parseFromFile(const std::string& configurationFile, Configurations* base) { + // We initial assertion with true because if we have assertion diabled, we want to pass this + // check and if assertion is enabled we will have values re-assigned any way. + bool assertionPassed = true; + ELPP_ASSERT((assertionPassed = base::utils::File::pathExists(configurationFile.c_str(), true)) == true, + "Configuration file [" << configurationFile << "] does not exist!"); + if (!assertionPassed) { + return false; + } + bool success = Parser::parseFromFile(configurationFile, this, base); + m_isFromFile = success; + return success; +} + +bool Configurations::parseFromText(const std::string& configurationsString, Configurations* base) { + bool success = Parser::parseFromText(configurationsString, this, base); + if (success) { + m_isFromFile = false; + } + return success; +} + +void Configurations::setFromBase(Configurations* base) { + if (base == nullptr || base == this) { + return; + } + base::threading::ScopedLock scopedLock(base->lock()); + for (Configuration*& conf : base->list()) { + set(conf); + } +} + +bool Configurations::hasConfiguration(ConfigurationType configurationType) { + base::type::EnumType lIndex = LevelHelper::kMinValid; + bool result = false; + LevelHelper::forEachLevel(&lIndex, [&](void) -> bool { + if (hasConfiguration(LevelHelper::castFromInt(lIndex), configurationType)) { + result = true; + } + return result; + }); + return result; +} + +bool Configurations::hasConfiguration(Level level, ConfigurationType configurationType) { + base::threading::ScopedLock scopedLock(lock()); +#if ELPP_COMPILER_INTEL + // We cant specify template types here, Intel C++ throws compilation error + // "error: type name is not allowed" + return RegistryWithPred::get(level, configurationType) != nullptr; +#else + return RegistryWithPred<Configuration, Configuration::Predicate>::get(level, configurationType) != nullptr; +#endif // ELPP_COMPILER_INTEL +} + +void Configurations::set(Level level, ConfigurationType configurationType, const std::string& value) { + base::threading::ScopedLock scopedLock(lock()); + unsafeSet(level, configurationType, value); // This is not unsafe anymore as we have locked mutex + if (level == Level::Global) { + unsafeSetGlobally(configurationType, value, false); // Again this is not unsafe either + } +} + +void Configurations::set(Configuration* conf) { + if (conf == nullptr) { + return; + } + set(conf->level(), conf->configurationType(), conf->value()); +} + +void Configurations::setToDefault(void) { + setGlobally(ConfigurationType::Enabled, std::string("true"), true); +#if !defined(ELPP_NO_DEFAULT_LOG_FILE) + setGlobally(ConfigurationType::Filename, std::string(base::consts::kDefaultLogFile), true); +#else + ELPP_UNUSED(base::consts::kDefaultLogFile); +#endif // !defined(ELPP_NO_DEFAULT_LOG_FILE) +#if defined(ELPP_NO_LOG_TO_FILE) + setGlobally(ConfigurationType::ToFile, std::string("false"), true); +#else + setGlobally(ConfigurationType::ToFile, std::string("true"), true); +#endif // defined(ELPP_NO_LOG_TO_FILE) + setGlobally(ConfigurationType::ToStandardOutput, std::string("true"), true); + setGlobally(ConfigurationType::SubsecondPrecision, std::string("3"), true); + setGlobally(ConfigurationType::PerformanceTracking, std::string("true"), true); + setGlobally(ConfigurationType::MaxLogFileSize, std::string("0"), true); + setGlobally(ConfigurationType::LogFlushThreshold, std::string("0"), true); + + setGlobally(ConfigurationType::Format, std::string("%datetime %level [%logger] %msg"), true); + set(Level::Debug, ConfigurationType::Format, + std::string("%datetime %level [%logger] [%user@%host] [%func] [%loc] %msg")); + // INFO and WARNING are set to default by Level::Global + set(Level::Error, ConfigurationType::Format, std::string("%datetime %level [%logger] %msg")); + set(Level::Fatal, ConfigurationType::Format, std::string("%datetime %level [%logger] %msg")); + set(Level::Verbose, ConfigurationType::Format, std::string("%datetime %level-%vlevel [%logger] %msg")); + set(Level::Trace, ConfigurationType::Format, std::string("%datetime %level [%logger] [%func] [%loc] %msg")); +} + +void Configurations::setRemainingToDefault(void) { + base::threading::ScopedLock scopedLock(lock()); +#if defined(ELPP_NO_LOG_TO_FILE) + unsafeSetIfNotExist(Level::Global, ConfigurationType::Enabled, std::string("false")); +#else + unsafeSetIfNotExist(Level::Global, ConfigurationType::Enabled, std::string("true")); +#endif // defined(ELPP_NO_LOG_TO_FILE) +#if !defined(ELPP_NO_DEFAULT_LOG_FILE) + unsafeSetIfNotExist(Level::Global, ConfigurationType::Filename, std::string(base::consts::kDefaultLogFile)); +#endif // !defined(ELPP_NO_DEFAULT_LOG_FILE) + unsafeSetIfNotExist(Level::Global, ConfigurationType::ToStandardOutput, std::string("true")); + unsafeSetIfNotExist(Level::Global, ConfigurationType::SubsecondPrecision, std::string("3")); + unsafeSetIfNotExist(Level::Global, ConfigurationType::PerformanceTracking, std::string("true")); + unsafeSetIfNotExist(Level::Global, ConfigurationType::MaxLogFileSize, std::string("0")); + unsafeSetIfNotExist(Level::Global, ConfigurationType::Format, std::string("%datetime %level [%logger] %msg")); + unsafeSetIfNotExist(Level::Debug, ConfigurationType::Format, + std::string("%datetime %level [%logger] [%user@%host] [%func] [%loc] %msg")); + // INFO and WARNING are set to default by Level::Global + unsafeSetIfNotExist(Level::Error, ConfigurationType::Format, std::string("%datetime %level [%logger] %msg")); + unsafeSetIfNotExist(Level::Fatal, ConfigurationType::Format, std::string("%datetime %level [%logger] %msg")); + unsafeSetIfNotExist(Level::Verbose, ConfigurationType::Format, std::string("%datetime %level-%vlevel [%logger] %msg")); + unsafeSetIfNotExist(Level::Trace, ConfigurationType::Format, + std::string("%datetime %level [%logger] [%func] [%loc] %msg")); +} + +bool Configurations::Parser::parseFromFile(const std::string& configurationFile, Configurations* sender, + Configurations* base) { + sender->setFromBase(base); + std::ifstream fileStream_(configurationFile.c_str(), std::ifstream::in); + ELPP_ASSERT(fileStream_.is_open(), "Unable to open configuration file [" << configurationFile << "] for parsing."); + bool parsedSuccessfully = false; + std::string line = std::string(); + Level currLevel = Level::Unknown; + std::string currConfigStr = std::string(); + std::string currLevelStr = std::string(); + while (fileStream_.good()) { + std::getline(fileStream_, line); + parsedSuccessfully = parseLine(&line, &currConfigStr, &currLevelStr, &currLevel, sender); + ELPP_ASSERT(parsedSuccessfully, "Unable to parse configuration line: " << line); + } + return parsedSuccessfully; +} + +bool Configurations::Parser::parseFromText(const std::string& configurationsString, Configurations* sender, + Configurations* base) { + sender->setFromBase(base); + bool parsedSuccessfully = false; + std::stringstream ss(configurationsString); + std::string line = std::string(); + Level currLevel = Level::Unknown; + std::string currConfigStr = std::string(); + std::string currLevelStr = std::string(); + while (std::getline(ss, line)) { + parsedSuccessfully = parseLine(&line, &currConfigStr, &currLevelStr, &currLevel, sender); + ELPP_ASSERT(parsedSuccessfully, "Unable to parse configuration line: " << line); + } + return parsedSuccessfully; +} + +void Configurations::Parser::ignoreComments(std::string* line) { + std::size_t foundAt = 0; + std::size_t quotesStart = line->find("\""); + std::size_t quotesEnd = std::string::npos; + if (quotesStart != std::string::npos) { + quotesEnd = line->find("\"", quotesStart + 1); + while (quotesEnd != std::string::npos && line->at(quotesEnd - 1) == '\\') { + // Do not erase slash yet - we will erase it in parseLine(..) while loop + quotesEnd = line->find("\"", quotesEnd + 2); + } + } + if ((foundAt = line->find(base::consts::kConfigurationComment)) != std::string::npos) { + if (foundAt < quotesEnd) { + foundAt = line->find(base::consts::kConfigurationComment, quotesEnd + 1); + } + *line = line->substr(0, foundAt); + } +} + +bool Configurations::Parser::isLevel(const std::string& line) { + return base::utils::Str::startsWith(line, std::string(base::consts::kConfigurationLevel)); +} + +bool Configurations::Parser::isComment(const std::string& line) { + return base::utils::Str::startsWith(line, std::string(base::consts::kConfigurationComment)); +} + +bool Configurations::Parser::isConfig(const std::string& line) { + std::size_t assignment = line.find('='); + return line != "" && + ((line[0] >= 'A' && line[0] <= 'Z') || (line[0] >= 'a' && line[0] <= 'z')) && + (assignment != std::string::npos) && + (line.size() > assignment); +} + +bool Configurations::Parser::parseLine(std::string* line, std::string* currConfigStr, std::string* currLevelStr, + Level* currLevel, + Configurations* conf) { + ConfigurationType currConfig = ConfigurationType::Unknown; + std::string currValue = std::string(); + *line = base::utils::Str::trim(*line); + if (isComment(*line)) return true; + ignoreComments(line); + *line = base::utils::Str::trim(*line); + if (line->empty()) { + // Comment ignored + return true; + } + if (isLevel(*line)) { + if (line->size() <= 2) { + return true; + } + *currLevelStr = line->substr(1, line->size() - 2); + *currLevelStr = base::utils::Str::toUpper(*currLevelStr); + *currLevelStr = base::utils::Str::trim(*currLevelStr); + *currLevel = LevelHelper::convertFromString(currLevelStr->c_str()); + return true; + } + if (isConfig(*line)) { + std::size_t assignment = line->find('='); + *currConfigStr = line->substr(0, assignment); + *currConfigStr = base::utils::Str::toUpper(*currConfigStr); + *currConfigStr = base::utils::Str::trim(*currConfigStr); + currConfig = ConfigurationTypeHelper::convertFromString(currConfigStr->c_str()); + currValue = line->substr(assignment + 1); + currValue = base::utils::Str::trim(currValue); + std::size_t quotesStart = currValue.find("\"", 0); + std::size_t quotesEnd = std::string::npos; + if (quotesStart != std::string::npos) { + quotesEnd = currValue.find("\"", quotesStart + 1); + while (quotesEnd != std::string::npos && currValue.at(quotesEnd - 1) == '\\') { + currValue = currValue.erase(quotesEnd - 1, 1); + quotesEnd = currValue.find("\"", quotesEnd + 2); + } + } + if (quotesStart != std::string::npos && quotesEnd != std::string::npos) { + // Quote provided - check and strip if valid + ELPP_ASSERT((quotesStart < quotesEnd), "Configuration error - No ending quote found in [" + << currConfigStr << "]"); + ELPP_ASSERT((quotesStart + 1 != quotesEnd), "Empty configuration value for [" << currConfigStr << "]"); + if ((quotesStart != quotesEnd) && (quotesStart + 1 != quotesEnd)) { + // Explicit check in case if assertion is disabled + currValue = currValue.substr(quotesStart + 1, quotesEnd - 1); + } + } + } + ELPP_ASSERT(*currLevel != Level::Unknown, "Unrecognized severity level [" << *currLevelStr << "]"); + ELPP_ASSERT(currConfig != ConfigurationType::Unknown, "Unrecognized configuration [" << *currConfigStr << "]"); + if (*currLevel == Level::Unknown || currConfig == ConfigurationType::Unknown) { + return false; // unrecognizable level or config + } + conf->set(*currLevel, currConfig, currValue); + return true; +} + +void Configurations::unsafeSetIfNotExist(Level level, ConfigurationType configurationType, const std::string& value) { + Configuration* conf = RegistryWithPred<Configuration, Configuration::Predicate>::get(level, configurationType); + if (conf == nullptr) { + unsafeSet(level, configurationType, value); + } +} + +void Configurations::unsafeSet(Level level, ConfigurationType configurationType, const std::string& value) { + Configuration* conf = RegistryWithPred<Configuration, Configuration::Predicate>::get(level, configurationType); + if (conf == nullptr) { + registerNew(new Configuration(level, configurationType, value)); + } else { + conf->setValue(value); + } + if (level == Level::Global) { + unsafeSetGlobally(configurationType, value, false); + } +} + +void Configurations::setGlobally(ConfigurationType configurationType, const std::string& value, + bool includeGlobalLevel) { + if (includeGlobalLevel) { + set(Level::Global, configurationType, value); + } + base::type::EnumType lIndex = LevelHelper::kMinValid; + LevelHelper::forEachLevel(&lIndex, [&](void) -> bool { + set(LevelHelper::castFromInt(lIndex), configurationType, value); + return false; // Do not break lambda function yet as we need to set all levels regardless + }); +} + +void Configurations::unsafeSetGlobally(ConfigurationType configurationType, const std::string& value, + bool includeGlobalLevel) { + if (includeGlobalLevel) { + unsafeSet(Level::Global, configurationType, value); + } + base::type::EnumType lIndex = LevelHelper::kMinValid; + LevelHelper::forEachLevel(&lIndex, [&](void) -> bool { + unsafeSet(LevelHelper::castFromInt(lIndex), configurationType, value); + return false; // Do not break lambda function yet as we need to set all levels regardless + }); +} + +// LogBuilder + +void LogBuilder::convertToColoredOutput(base::type::string_t* logLine, Level level) { + if (!m_termSupportsColor) return; + const base::type::char_t* resetColor = ELPP_LITERAL("\x1b[0m"); + if (level == Level::Error || level == Level::Fatal) + *logLine = ELPP_LITERAL("\x1b[31m") + *logLine + resetColor; + else if (level == Level::Warning) + *logLine = ELPP_LITERAL("\x1b[33m") + *logLine + resetColor; + else if (level == Level::Debug) + *logLine = ELPP_LITERAL("\x1b[32m") + *logLine + resetColor; + else if (level == Level::Info) + *logLine = ELPP_LITERAL("\x1b[36m") + *logLine + resetColor; + else if (level == Level::Trace) + *logLine = ELPP_LITERAL("\x1b[35m") + *logLine + resetColor; +} + +// Logger + +Logger::Logger(const std::string& id, base::LogStreamsReferenceMap* logStreamsReference) : + m_id(id), + m_typedConfigurations(nullptr), + m_parentApplicationName(std::string()), + m_isConfigured(false), + m_logStreamsReference(logStreamsReference) { + initUnflushedCount(); +} + +Logger::Logger(const std::string& id, const Configurations& configurations, + base::LogStreamsReferenceMap* logStreamsReference) : + m_id(id), + m_typedConfigurations(nullptr), + m_parentApplicationName(std::string()), + m_isConfigured(false), + m_logStreamsReference(logStreamsReference) { + initUnflushedCount(); + configure(configurations); +} + +Logger::Logger(const Logger& logger) { + base::utils::safeDelete(m_typedConfigurations); + m_id = logger.m_id; + m_typedConfigurations = logger.m_typedConfigurations; + m_parentApplicationName = logger.m_parentApplicationName; + m_isConfigured = logger.m_isConfigured; + m_configurations = logger.m_configurations; + m_unflushedCount = logger.m_unflushedCount; + m_logStreamsReference = logger.m_logStreamsReference; +} + +Logger& Logger::operator=(const Logger& logger) { + if (&logger != this) { + base::utils::safeDelete(m_typedConfigurations); + m_id = logger.m_id; + m_typedConfigurations = logger.m_typedConfigurations; + m_parentApplicationName = logger.m_parentApplicationName; + m_isConfigured = logger.m_isConfigured; + m_configurations = logger.m_configurations; + m_unflushedCount = logger.m_unflushedCount; + m_logStreamsReference = logger.m_logStreamsReference; + } + return *this; +} + +void Logger::configure(const Configurations& configurations) { + m_isConfigured = false; // we set it to false in case if we fail + initUnflushedCount(); + if (m_typedConfigurations != nullptr) { + Configurations* c = const_cast<Configurations*>(m_typedConfigurations->configurations()); + if (c->hasConfiguration(Level::Global, ConfigurationType::Filename)) { + // This check is definitely needed for cases like ELPP_NO_DEFAULT_LOG_FILE + flush(); + } + } + base::threading::ScopedLock scopedLock(lock()); + if (m_configurations != configurations) { + m_configurations.setFromBase(const_cast<Configurations*>(&configurations)); + } + base::utils::safeDelete(m_typedConfigurations); + m_typedConfigurations = new base::TypedConfigurations(&m_configurations, m_logStreamsReference); + resolveLoggerFormatSpec(); + m_isConfigured = true; +} + +void Logger::reconfigure(void) { + ELPP_INTERNAL_INFO(1, "Reconfiguring logger [" << m_id << "]"); + configure(m_configurations); +} + +bool Logger::isValidId(const std::string& id) { + for (std::string::const_iterator it = id.begin(); it != id.end(); ++it) { + if (!base::utils::Str::contains(base::consts::kValidLoggerIdSymbols, *it)) { + return false; + } + } + return true; +} + +void Logger::flush(void) { + ELPP_INTERNAL_INFO(3, "Flushing logger [" << m_id << "] all levels"); + base::threading::ScopedLock scopedLock(lock()); + base::type::EnumType lIndex = LevelHelper::kMinValid; + LevelHelper::forEachLevel(&lIndex, [&](void) -> bool { + flush(LevelHelper::castFromInt(lIndex), nullptr); + return false; + }); +} + +void Logger::flush(Level level, base::type::fstream_t* fs) { + if (fs == nullptr && m_typedConfigurations->toFile(level)) { + fs = m_typedConfigurations->fileStream(level); + } + if (fs != nullptr) { + fs->flush(); + m_unflushedCount.find(level)->second = 0; + } +} + +void Logger::initUnflushedCount(void) { + m_unflushedCount.clear(); + base::type::EnumType lIndex = LevelHelper::kMinValid; + LevelHelper::forEachLevel(&lIndex, [&](void) -> bool { + m_unflushedCount.insert(std::make_pair(LevelHelper::castFromInt(lIndex), 0)); + return false; + }); +} + +void Logger::resolveLoggerFormatSpec(void) const { + base::type::EnumType lIndex = LevelHelper::kMinValid; + LevelHelper::forEachLevel(&lIndex, [&](void) -> bool { + base::LogFormat* logFormat = + const_cast<base::LogFormat*>(&m_typedConfigurations->logFormat(LevelHelper::castFromInt(lIndex))); + base::utils::Str::replaceFirstWithEscape(logFormat->m_format, base::consts::kLoggerIdFormatSpecifier, m_id); + return false; + }); +} + +// el::base +namespace base { + +// el::base::utils +namespace utils { + +// File + +base::type::fstream_t* File::newFileStream(const std::string& filename) { + base::type::fstream_t *fs = new base::type::fstream_t(filename.c_str(), + base::type::fstream_t::out +#if !defined(ELPP_FRESH_LOG_FILE) + | base::type::fstream_t::app +#endif + ); +#if defined(ELPP_UNICODE) + std::locale elppUnicodeLocale(""); +# if ELPP_OS_WINDOWS + std::locale elppUnicodeLocaleWindows(elppUnicodeLocale, new std::codecvt_utf8_utf16<wchar_t>); + elppUnicodeLocale = elppUnicodeLocaleWindows; +# endif // ELPP_OS_WINDOWS + fs->imbue(elppUnicodeLocale); +#endif // defined(ELPP_UNICODE) + if (fs->is_open()) { + fs->flush(); + } else { + base::utils::safeDelete(fs); + ELPP_INTERNAL_ERROR("Bad file [" << filename << "]", true); + } + return fs; +} + +std::size_t File::getSizeOfFile(base::type::fstream_t* fs) { + if (fs == nullptr) { + return 0; + } + std::streampos currPos = fs->tellg(); + fs->seekg(0, fs->end); + std::size_t size = static_cast<std::size_t>(fs->tellg()); + fs->seekg(currPos); + return size; +} + +bool File::pathExists(const char* path, bool considerFile) { + if (path == nullptr) { + return false; + } +#if ELPP_OS_UNIX + ELPP_UNUSED(considerFile); + struct stat st; + return (stat(path, &st) == 0); +#elif ELPP_OS_WINDOWS + DWORD fileType = GetFileAttributesA(path); + if (fileType == INVALID_FILE_ATTRIBUTES) { + return false; + } + return considerFile ? true : ((fileType & FILE_ATTRIBUTE_DIRECTORY) == 0 ? false : true); +#endif // ELPP_OS_UNIX +} + +bool File::createPath(const std::string& path) { + if (path.empty()) { + return false; + } + if (base::utils::File::pathExists(path.c_str())) { + return true; + } + int status = -1; + + char* currPath = const_cast<char*>(path.c_str()); + std::string builtPath = std::string(); +#if ELPP_OS_UNIX + if (path[0] == '/') { + builtPath = "/"; + } + currPath = STRTOK(currPath, base::consts::kFilePathSeperator, 0); +#elif ELPP_OS_WINDOWS + // Use secure functions API + char* nextTok_ = nullptr; + currPath = STRTOK(currPath, base::consts::kFilePathSeperator, &nextTok_); + ELPP_UNUSED(nextTok_); +#endif // ELPP_OS_UNIX + while (currPath != nullptr) { + builtPath.append(currPath); + builtPath.append(base::consts::kFilePathSeperator); +#if ELPP_OS_UNIX + status = mkdir(builtPath.c_str(), ELPP_LOG_PERMS); + currPath = STRTOK(nullptr, base::consts::kFilePathSeperator, 0); +#elif ELPP_OS_WINDOWS + status = _mkdir(builtPath.c_str()); + currPath = STRTOK(nullptr, base::consts::kFilePathSeperator, &nextTok_); +#endif // ELPP_OS_UNIX + } + if (status == -1) { + ELPP_INTERNAL_ERROR("Error while creating path [" << path << "]", true); + return false; + } + return true; +} + +std::string File::extractPathFromFilename(const std::string& fullPath, const char* separator) { + if ((fullPath == "") || (fullPath.find(separator) == std::string::npos)) { + return fullPath; + } + std::size_t lastSlashAt = fullPath.find_last_of(separator); + if (lastSlashAt == 0) { + return std::string(separator); + } + return fullPath.substr(0, lastSlashAt + 1); +} + +void File::buildStrippedFilename(const char* filename, char buff[], std::size_t limit) { + std::size_t sizeOfFilename = strlen(filename); + if (sizeOfFilename >= limit) { + filename += (sizeOfFilename - limit); + if (filename[0] != '.' && filename[1] != '.') { // prepend if not already + filename += 3; // 3 = '..' + STRCAT(buff, "..", limit); + } + } + STRCAT(buff, filename, limit); +} + +void File::buildBaseFilename(const std::string& fullPath, char buff[], std::size_t limit, const char* separator) { + const char *filename = fullPath.c_str(); + std::size_t lastSlashAt = fullPath.find_last_of(separator); + filename += lastSlashAt ? lastSlashAt+1 : 0; + std::size_t sizeOfFilename = strlen(filename); + if (sizeOfFilename >= limit) { + filename += (sizeOfFilename - limit); + if (filename[0] != '.' && filename[1] != '.') { // prepend if not already + filename += 3; // 3 = '..' + STRCAT(buff, "..", limit); + } + } + STRCAT(buff, filename, limit); +} + +// Str + +bool Str::wildCardMatch(const char* str, const char* pattern) { + while (*pattern) { + switch (*pattern) { + case '?': + if (!*str) + return false; + ++str; + ++pattern; + break; + case '*': + if (wildCardMatch(str, pattern + 1)) + return true; + if (*str && wildCardMatch(str + 1, pattern)) + return true; + return false; + default: + if (*str++ != *pattern++) + return false; + break; + } + } + return !*str && !*pattern; +} + +std::string& Str::ltrim(std::string& str) { + str.erase(str.begin(), std::find_if(str.begin(), str.end(), [](char c) { + return !std::isspace(c); + } )); + return str; +} + +std::string& Str::rtrim(std::string& str) { + str.erase(std::find_if(str.rbegin(), str.rend(), [](char c) { + return !std::isspace(c); + }).base(), str.end()); + return str; +} + +std::string& Str::trim(std::string& str) { + return ltrim(rtrim(str)); +} + +bool Str::startsWith(const std::string& str, const std::string& start) { + return (str.length() >= start.length()) && (str.compare(0, start.length(), start) == 0); +} + +bool Str::endsWith(const std::string& str, const std::string& end) { + return (str.length() >= end.length()) && (str.compare(str.length() - end.length(), end.length(), end) == 0); +} + +std::string& Str::replaceAll(std::string& str, char replaceWhat, char replaceWith) { + std::replace(str.begin(), str.end(), replaceWhat, replaceWith); + return str; +} + +std::string& Str::replaceAll(std::string& str, const std::string& replaceWhat, + const std::string& replaceWith) { + if (replaceWhat == replaceWith) + return str; + std::size_t foundAt = std::string::npos; + while ((foundAt = str.find(replaceWhat, foundAt + 1)) != std::string::npos) { + str.replace(foundAt, replaceWhat.length(), replaceWith); + } + return str; +} + +void Str::replaceFirstWithEscape(base::type::string_t& str, const base::type::string_t& replaceWhat, + const base::type::string_t& replaceWith) { + std::size_t foundAt = base::type::string_t::npos; + while ((foundAt = str.find(replaceWhat, foundAt + 1)) != base::type::string_t::npos) { + if (foundAt > 0 && str[foundAt - 1] == base::consts::kFormatSpecifierChar) { + str.erase(foundAt > 0 ? foundAt - 1 : 0, 1); + ++foundAt; + } else { + str.replace(foundAt, replaceWhat.length(), replaceWith); + return; + } + } +} +#if defined(ELPP_UNICODE) +void Str::replaceFirstWithEscape(base::type::string_t& str, const base::type::string_t& replaceWhat, + const std::string& replaceWith) { + replaceFirstWithEscape(str, replaceWhat, base::type::string_t(replaceWith.begin(), replaceWith.end())); +} +#endif // defined(ELPP_UNICODE) + +std::string& Str::toUpper(std::string& str) { + std::transform(str.begin(), str.end(), str.begin(), + [](char c) { + return static_cast<char>(::toupper(c)); + }); + return str; +} + +bool Str::cStringEq(const char* s1, const char* s2) { + if (s1 == nullptr && s2 == nullptr) return true; + if (s1 == nullptr || s2 == nullptr) return false; + return strcmp(s1, s2) == 0; +} + +bool Str::cStringCaseEq(const char* s1, const char* s2) { + if (s1 == nullptr && s2 == nullptr) return true; + if (s1 == nullptr || s2 == nullptr) return false; + + // With thanks to cygwin for this code + int d = 0; + + while (true) { + const int c1 = toupper(*s1++); + const int c2 = toupper(*s2++); + + if (((d = c1 - c2) != 0) || (c2 == '\0')) { + break; + } + } + + return d == 0; +} + +bool Str::contains(const char* str, char c) { + for (; *str; ++str) { + if (*str == c) + return true; + } + return false; +} + +char* Str::convertAndAddToBuff(std::size_t n, int len, char* buf, const char* bufLim, bool zeroPadded) { + char localBuff[10] = ""; + char* p = localBuff + sizeof(localBuff) - 2; + if (n > 0) { + for (; n > 0 && p > localBuff && len > 0; n /= 10, --len) + *--p = static_cast<char>(n % 10 + '0'); + } else { + *--p = '0'; + --len; + } + if (zeroPadded) + while (p > localBuff && len-- > 0) *--p = static_cast<char>('0'); + return addToBuff(p, buf, bufLim); +} + +char* Str::addToBuff(const char* str, char* buf, const char* bufLim) { + while ((buf < bufLim) && ((*buf = *str++) != '\0')) + ++buf; + return buf; +} + +char* Str::clearBuff(char buff[], std::size_t lim) { + STRCPY(buff, "", lim); + ELPP_UNUSED(lim); // For *nix we dont have anything using lim in above STRCPY macro + return buff; +} + +/// @brief Converst wchar* to char* +/// NOTE: Need to free return value after use! +char* Str::wcharPtrToCharPtr(const wchar_t* line) { + std::size_t len_ = wcslen(line) + 1; + char* buff_ = static_cast<char*>(malloc(len_ + 1)); +# if ELPP_OS_UNIX || (ELPP_OS_WINDOWS && !ELPP_CRT_DBG_WARNINGS) + std::wcstombs(buff_, line, len_); +# elif ELPP_OS_WINDOWS + std::size_t convCount_ = 0; + mbstate_t mbState_; + ::memset(static_cast<void*>(&mbState_), 0, sizeof(mbState_)); + wcsrtombs_s(&convCount_, buff_, len_, &line, len_, &mbState_); +# endif // ELPP_OS_UNIX || (ELPP_OS_WINDOWS && !ELPP_CRT_DBG_WARNINGS) + return buff_; +} + +// OS + +#if ELPP_OS_WINDOWS +/// @brief Gets environment variables for Windows based OS. +/// We are not using <code>getenv(const char*)</code> because of CRT deprecation +/// @param varname Variable name to get environment variable value for +/// @return If variable exist the value of it otherwise nullptr +const char* OS::getWindowsEnvironmentVariable(const char* varname) { + const DWORD bufferLen = 50; + static char buffer[bufferLen]; + if (GetEnvironmentVariableA(varname, buffer, bufferLen)) { + return buffer; + } + return nullptr; +} +#endif // ELPP_OS_WINDOWS +#if ELPP_OS_ANDROID +std::string OS::getProperty(const char* prop) { + char propVal[PROP_VALUE_MAX + 1]; + int ret = __system_property_get(prop, propVal); + return ret == 0 ? std::string() : std::string(propVal); +} + +std::string OS::getDeviceName(void) { + std::stringstream ss; + std::string manufacturer = getProperty("ro.product.manufacturer"); + std::string model = getProperty("ro.product.model"); + if (manufacturer.empty() || model.empty()) { + return std::string(); + } + ss << manufacturer << "-" << model; + return ss.str(); +} +#endif // ELPP_OS_ANDROID + +const std::string OS::getBashOutput(const char* command) { +#if (ELPP_OS_UNIX && !ELPP_OS_ANDROID && !ELPP_CYGWIN) + if (command == nullptr) { + return std::string(); + } + FILE* proc = nullptr; + if ((proc = popen(command, "r")) == nullptr) { + ELPP_INTERNAL_ERROR("\nUnable to run command [" << command << "]", true); + return std::string(); + } + char hBuff[4096]; + if (fgets(hBuff, sizeof(hBuff), proc) != nullptr) { + pclose(proc); + if (hBuff[strlen(hBuff) - 1] == '\n') { + hBuff[strlen(hBuff) - 1] = '\0'; + } + return std::string(hBuff); + } + return std::string(); +#else + ELPP_UNUSED(command); + return std::string(); +#endif // (ELPP_OS_UNIX && !ELPP_OS_ANDROID && !ELPP_CYGWIN) +} + +std::string OS::getEnvironmentVariable(const char* variableName, const char* defaultVal, + const char* alternativeBashCommand) { +#if ELPP_OS_UNIX + const char* val = getenv(variableName); +#elif ELPP_OS_WINDOWS + const char* val = getWindowsEnvironmentVariable(variableName); +#endif // ELPP_OS_UNIX + if ((val == nullptr) || ((strcmp(val, "") == 0))) { +#if ELPP_OS_UNIX && defined(ELPP_FORCE_ENV_VAR_FROM_BASH) + // Try harder on unix-based systems + std::string valBash = base::utils::OS::getBashOutput(alternativeBashCommand); + if (valBash.empty()) { + return std::string(defaultVal); + } else { + return valBash; + } +#elif ELPP_OS_WINDOWS || ELPP_OS_UNIX + ELPP_UNUSED(alternativeBashCommand); + return std::string(defaultVal); +#endif // ELPP_OS_UNIX && defined(ELPP_FORCE_ENV_VAR_FROM_BASH) + } + return std::string(val); +} + +std::string OS::currentUser(void) { +#if ELPP_OS_UNIX && !ELPP_OS_ANDROID + return getEnvironmentVariable("USER", base::consts::kUnknownUser, "whoami"); +#elif ELPP_OS_WINDOWS + return getEnvironmentVariable("USERNAME", base::consts::kUnknownUser); +#elif ELPP_OS_ANDROID + ELPP_UNUSED(base::consts::kUnknownUser); + return std::string("android"); +#else + return std::string(); +#endif // ELPP_OS_UNIX && !ELPP_OS_ANDROID +} + +std::string OS::currentHost(void) { +#if ELPP_OS_UNIX && !ELPP_OS_ANDROID + return getEnvironmentVariable("HOSTNAME", base::consts::kUnknownHost, "hostname"); +#elif ELPP_OS_WINDOWS + return getEnvironmentVariable("COMPUTERNAME", base::consts::kUnknownHost); +#elif ELPP_OS_ANDROID + ELPP_UNUSED(base::consts::kUnknownHost); + return getDeviceName(); +#else + return std::string(); +#endif // ELPP_OS_UNIX && !ELPP_OS_ANDROID +} + +bool OS::termSupportsColor(void) { + std::string term = getEnvironmentVariable("TERM", ""); + return term == "xterm" || term == "xterm-color" || term == "xterm-256color" + || term == "screen" || term == "linux" || term == "cygwin" + || term == "screen-256color"; +} + +// DateTime + +void DateTime::gettimeofday(struct timeval* tv) { +#if ELPP_OS_WINDOWS + if (tv != nullptr) { +# if ELPP_COMPILER_MSVC || defined(_MSC_EXTENSIONS) + const unsigned __int64 delta_ = 11644473600000000Ui64; +# else + const unsigned __int64 delta_ = 11644473600000000ULL; +# endif // ELPP_COMPILER_MSVC || defined(_MSC_EXTENSIONS) + const double secOffSet = 0.000001; + const unsigned long usecOffSet = 1000000; + FILETIME fileTime; + GetSystemTimeAsFileTime(&fileTime); + unsigned __int64 present = 0; + present |= fileTime.dwHighDateTime; + present = present << 32; + present |= fileTime.dwLowDateTime; + present /= 10; // mic-sec + // Subtract the difference + present -= delta_; + tv->tv_sec = static_cast<long>(present * secOffSet); + tv->tv_usec = static_cast<long>(present % usecOffSet); + } +#else + ::gettimeofday(tv, nullptr); +#endif // ELPP_OS_WINDOWS +} + +std::string DateTime::getDateTime(const char* format, const base::SubsecondPrecision* ssPrec) { + struct timeval currTime; + gettimeofday(&currTime); + return timevalToString(currTime, format, ssPrec); +} + +std::string DateTime::timevalToString(struct timeval tval, const char* format, + const el::base::SubsecondPrecision* ssPrec) { + struct ::tm timeInfo; + buildTimeInfo(&tval, &timeInfo); + const int kBuffSize = 30; + char buff_[kBuffSize] = ""; + parseFormat(buff_, kBuffSize, format, &timeInfo, static_cast<std::size_t>(tval.tv_usec / ssPrec->m_offset), + ssPrec); + return std::string(buff_); +} + +base::type::string_t DateTime::formatTime(unsigned long long time, base::TimestampUnit timestampUnit) { + base::type::EnumType start = static_cast<base::type::EnumType>(timestampUnit); + const base::type::char_t* unit = base::consts::kTimeFormats[start].unit; + for (base::type::EnumType i = start; i < base::consts::kTimeFormatsCount - 1; ++i) { + if (time <= base::consts::kTimeFormats[i].value) { + break; + } + if (base::consts::kTimeFormats[i].value == 1000.0f && time / 1000.0f < 1.9f) { + break; + } + time /= static_cast<decltype(time)>(base::consts::kTimeFormats[i].value); + unit = base::consts::kTimeFormats[i + 1].unit; + } + base::type::stringstream_t ss; + ss << time << " " << unit; + return ss.str(); +} + +unsigned long long DateTime::getTimeDifference(const struct timeval& endTime, const struct timeval& startTime, + base::TimestampUnit timestampUnit) { + if (timestampUnit == base::TimestampUnit::Microsecond) { + return static_cast<unsigned long long>(static_cast<unsigned long long>(1000000 * endTime.tv_sec + endTime.tv_usec) - + static_cast<unsigned long long>(1000000 * startTime.tv_sec + startTime.tv_usec)); + } + // milliseconds + auto conv = [](const struct timeval& tim) { + return static_cast<unsigned long long>((tim.tv_sec * 1000) + (tim.tv_usec / 1000)); + }; + return static_cast<unsigned long long>(conv(endTime) - conv(startTime)); +} + +struct ::tm* DateTime::buildTimeInfo(struct timeval* currTime, struct ::tm* timeInfo) { +#if ELPP_OS_UNIX + time_t rawTime = currTime->tv_sec; + ::elpptime_r(&rawTime, timeInfo); + return timeInfo; +#else +# if ELPP_COMPILER_MSVC + ELPP_UNUSED(currTime); + time_t t; + _time64(&t); + elpptime_s(timeInfo, &t); + return timeInfo; +# else + // For any other compilers that don't have CRT warnings issue e.g, MinGW or TDM GCC- we use different method + time_t rawTime = currTime->tv_sec; + struct tm* tmInf = elpptime(&rawTime); + *timeInfo = *tmInf; + return timeInfo; +# endif // ELPP_COMPILER_MSVC +#endif // ELPP_OS_UNIX +} + +char* DateTime::parseFormat(char* buf, std::size_t bufSz, const char* format, const struct tm* tInfo, + std::size_t msec, const base::SubsecondPrecision* ssPrec) { + const char* bufLim = buf + bufSz; + for (; *format; ++format) { + if (*format == base::consts::kFormatSpecifierChar) { + switch (*++format) { + case base::consts::kFormatSpecifierChar: // Escape + break; + case '\0': // End + --format; + break; + case 'd': // Day + buf = base::utils::Str::convertAndAddToBuff(tInfo->tm_mday, 2, buf, bufLim); + continue; + case 'a': // Day of week (short) + buf = base::utils::Str::addToBuff(base::consts::kDaysAbbrev[tInfo->tm_wday], buf, bufLim); + continue; + case 'A': // Day of week (long) + buf = base::utils::Str::addToBuff(base::consts::kDays[tInfo->tm_wday], buf, bufLim); + continue; + case 'M': // month + buf = base::utils::Str::convertAndAddToBuff(tInfo->tm_mon + 1, 2, buf, bufLim); + continue; + case 'b': // month (short) + buf = base::utils::Str::addToBuff(base::consts::kMonthsAbbrev[tInfo->tm_mon], buf, bufLim); + continue; + case 'B': // month (long) + buf = base::utils::Str::addToBuff(base::consts::kMonths[tInfo->tm_mon], buf, bufLim); + continue; + case 'y': // year (two digits) + buf = base::utils::Str::convertAndAddToBuff(tInfo->tm_year + base::consts::kYearBase, 2, buf, bufLim); + continue; + case 'Y': // year (four digits) + buf = base::utils::Str::convertAndAddToBuff(tInfo->tm_year + base::consts::kYearBase, 4, buf, bufLim); + continue; + case 'h': // hour (12-hour) + buf = base::utils::Str::convertAndAddToBuff(tInfo->tm_hour % 12, 2, buf, bufLim); + continue; + case 'H': // hour (24-hour) + buf = base::utils::Str::convertAndAddToBuff(tInfo->tm_hour, 2, buf, bufLim); + continue; + case 'm': // minute + buf = base::utils::Str::convertAndAddToBuff(tInfo->tm_min, 2, buf, bufLim); + continue; + case 's': // second + buf = base::utils::Str::convertAndAddToBuff(tInfo->tm_sec, 2, buf, bufLim); + continue; + case 'z': // subsecond part + case 'g': + buf = base::utils::Str::convertAndAddToBuff(msec, ssPrec->m_width, buf, bufLim); + continue; + case 'F': // AM/PM + buf = base::utils::Str::addToBuff((tInfo->tm_hour >= 12) ? base::consts::kPm : base::consts::kAm, buf, bufLim); + continue; + default: + continue; + } + } + if (buf == bufLim) break; + *buf++ = *format; + } + return buf; +} + +// CommandLineArgs + +void CommandLineArgs::setArgs(int argc, char** argv) { + m_params.clear(); + m_paramsWithValue.clear(); + if (argc == 0 || argv == nullptr) { + return; + } + m_argc = argc; + m_argv = argv; + for (int i = 1; i < m_argc; ++i) { + const char* v = (strstr(m_argv[i], "=")); + if (v != nullptr && strlen(v) > 0) { + std::string key = std::string(m_argv[i]); + key = key.substr(0, key.find_first_of('=')); + if (hasParamWithValue(key.c_str())) { + ELPP_INTERNAL_INFO(1, "Skipping [" << key << "] arg since it already has value [" + << getParamValue(key.c_str()) << "]"); + } else { + m_paramsWithValue.insert(std::make_pair(key, std::string(v + 1))); + } + } + if (v == nullptr) { + if (hasParam(m_argv[i])) { + ELPP_INTERNAL_INFO(1, "Skipping [" << m_argv[i] << "] arg since it already exists"); + } else { + m_params.push_back(std::string(m_argv[i])); + } + } + } +} + +bool CommandLineArgs::hasParamWithValue(const char* paramKey) const { + return m_paramsWithValue.find(std::string(paramKey)) != m_paramsWithValue.end(); +} + +const char* CommandLineArgs::getParamValue(const char* paramKey) const { + return m_paramsWithValue.find(std::string(paramKey))->second.c_str(); +} + +bool CommandLineArgs::hasParam(const char* paramKey) const { + return std::find(m_params.begin(), m_params.end(), std::string(paramKey)) != m_params.end(); +} + +bool CommandLineArgs::empty(void) const { + return m_params.empty() && m_paramsWithValue.empty(); +} + +std::size_t CommandLineArgs::size(void) const { + return m_params.size() + m_paramsWithValue.size(); +} + +base::type::ostream_t& operator<<(base::type::ostream_t& os, const CommandLineArgs& c) { + for (int i = 1; i < c.m_argc; ++i) { + os << ELPP_LITERAL("[") << c.m_argv[i] << ELPP_LITERAL("]"); + if (i < c.m_argc - 1) { + os << ELPP_LITERAL(" "); + } + } + return os; +} + +} // namespace utils + +// el::base::threading +namespace threading { + +#if ELPP_THREADING_ENABLED +# if ELPP_USE_STD_THREADING +# if ELPP_ASYNC_LOGGING +static void msleep(int ms) { + // Only when async logging enabled - this is because async is strict on compiler +# if defined(ELPP_NO_SLEEP_FOR) + usleep(ms * 1000); +# else + std::this_thread::sleep_for(std::chrono::milliseconds(ms)); +# endif // defined(ELPP_NO_SLEEP_FOR) +} +# endif // ELPP_ASYNC_LOGGING +# endif // !ELPP_USE_STD_THREADING +#endif // ELPP_THREADING_ENABLED + +} // namespace threading + +// el::base + +// SubsecondPrecision + +void SubsecondPrecision::init(int width) { + if (width < 1 || width > 6) { + width = base::consts::kDefaultSubsecondPrecision; + } + m_width = width; + switch (m_width) { + case 3: + m_offset = 1000; + break; + case 4: + m_offset = 100; + break; + case 5: + m_offset = 10; + break; + case 6: + m_offset = 1; + break; + default: + m_offset = 1000; + break; + } +} + +// LogFormat + +LogFormat::LogFormat(void) : + m_level(Level::Unknown), + m_userFormat(base::type::string_t()), + m_format(base::type::string_t()), + m_dateTimeFormat(std::string()), + m_flags(0x0), + m_currentUser(base::utils::OS::currentUser()), + m_currentHost(base::utils::OS::currentHost()) { +} + +LogFormat::LogFormat(Level level, const base::type::string_t& format) + : m_level(level), m_userFormat(format), m_currentUser(base::utils::OS::currentUser()), + m_currentHost(base::utils::OS::currentHost()) { + parseFromFormat(m_userFormat); +} + +LogFormat::LogFormat(const LogFormat& logFormat): + m_level(logFormat.m_level), + m_userFormat(logFormat.m_userFormat), + m_format(logFormat.m_format), + m_dateTimeFormat(logFormat.m_dateTimeFormat), + m_flags(logFormat.m_flags), + m_currentUser(logFormat.m_currentUser), + m_currentHost(logFormat.m_currentHost) { +} + +LogFormat::LogFormat(LogFormat&& logFormat) { + m_level = std::move(logFormat.m_level); + m_userFormat = std::move(logFormat.m_userFormat); + m_format = std::move(logFormat.m_format); + m_dateTimeFormat = std::move(logFormat.m_dateTimeFormat); + m_flags = std::move(logFormat.m_flags); + m_currentUser = std::move(logFormat.m_currentUser); + m_currentHost = std::move(logFormat.m_currentHost); +} + +LogFormat& LogFormat::operator=(const LogFormat& logFormat) { + if (&logFormat != this) { + m_level = logFormat.m_level; + m_userFormat = logFormat.m_userFormat; + m_dateTimeFormat = logFormat.m_dateTimeFormat; + m_flags = logFormat.m_flags; + m_currentUser = logFormat.m_currentUser; + m_currentHost = logFormat.m_currentHost; + } + return *this; +} + +bool LogFormat::operator==(const LogFormat& other) { + return m_level == other.m_level && m_userFormat == other.m_userFormat && m_format == other.m_format && + m_dateTimeFormat == other.m_dateTimeFormat && m_flags == other.m_flags; +} + +/// @brief Updates format to be used while logging. +/// @param userFormat User provided format +void LogFormat::parseFromFormat(const base::type::string_t& userFormat) { + // We make copy because we will be changing the format + // i.e, removing user provided date format from original format + // and then storing it. + base::type::string_t formatCopy = userFormat; + m_flags = 0x0; + auto conditionalAddFlag = [&](const base::type::char_t* specifier, base::FormatFlags flag) { + std::size_t foundAt = base::type::string_t::npos; + while ((foundAt = formatCopy.find(specifier, foundAt + 1)) != base::type::string_t::npos) { + if (foundAt > 0 && formatCopy[foundAt - 1] == base::consts::kFormatSpecifierChar) { + if (hasFlag(flag)) { + // If we already have flag we remove the escape chars so that '%%' is turned to '%' + // even after specifier resolution - this is because we only replaceFirst specifier + formatCopy.erase(foundAt > 0 ? foundAt - 1 : 0, 1); + ++foundAt; + } + } else { + if (!hasFlag(flag)) addFlag(flag); + } + } + }; + conditionalAddFlag(base::consts::kAppNameFormatSpecifier, base::FormatFlags::AppName); + conditionalAddFlag(base::consts::kSeverityLevelFormatSpecifier, base::FormatFlags::Level); + conditionalAddFlag(base::consts::kSeverityLevelShortFormatSpecifier, base::FormatFlags::LevelShort); + conditionalAddFlag(base::consts::kLoggerIdFormatSpecifier, base::FormatFlags::LoggerId); + conditionalAddFlag(base::consts::kThreadIdFormatSpecifier, base::FormatFlags::ThreadId); + conditionalAddFlag(base::consts::kLogFileFormatSpecifier, base::FormatFlags::File); + conditionalAddFlag(base::consts::kLogFileBaseFormatSpecifier, base::FormatFlags::FileBase); + conditionalAddFlag(base::consts::kLogLineFormatSpecifier, base::FormatFlags::Line); + conditionalAddFlag(base::consts::kLogLocationFormatSpecifier, base::FormatFlags::Location); + conditionalAddFlag(base::consts::kLogFunctionFormatSpecifier, base::FormatFlags::Function); + conditionalAddFlag(base::consts::kCurrentUserFormatSpecifier, base::FormatFlags::User); + conditionalAddFlag(base::consts::kCurrentHostFormatSpecifier, base::FormatFlags::Host); + conditionalAddFlag(base::consts::kMessageFormatSpecifier, base::FormatFlags::LogMessage); + conditionalAddFlag(base::consts::kVerboseLevelFormatSpecifier, base::FormatFlags::VerboseLevel); + // For date/time we need to extract user's date format first + std::size_t dateIndex = std::string::npos; + if ((dateIndex = formatCopy.find(base::consts::kDateTimeFormatSpecifier)) != std::string::npos) { + while (dateIndex > 0 && formatCopy[dateIndex - 1] == base::consts::kFormatSpecifierChar) { + dateIndex = formatCopy.find(base::consts::kDateTimeFormatSpecifier, dateIndex + 1); + } + if (dateIndex != std::string::npos) { + addFlag(base::FormatFlags::DateTime); + updateDateFormat(dateIndex, formatCopy); + } + } + m_format = formatCopy; + updateFormatSpec(); +} + +void LogFormat::updateDateFormat(std::size_t index, base::type::string_t& currFormat) { + if (hasFlag(base::FormatFlags::DateTime)) { + index += ELPP_STRLEN(base::consts::kDateTimeFormatSpecifier); + } + const base::type::char_t* ptr = currFormat.c_str() + index; + if ((currFormat.size() > index) && (ptr[0] == '{')) { + // User has provided format for date/time + ++ptr; + int count = 1; // Start by 1 in order to remove starting brace + std::stringstream ss; + for (; *ptr; ++ptr, ++count) { + if (*ptr == '}') { + ++count; // In order to remove ending brace + break; + } + ss << static_cast<char>(*ptr); + } + currFormat.erase(index, count); + m_dateTimeFormat = ss.str(); + } else { + // No format provided, use default + if (hasFlag(base::FormatFlags::DateTime)) { + m_dateTimeFormat = std::string(base::consts::kDefaultDateTimeFormat); + } + } +} + +void LogFormat::updateFormatSpec(void) { + // Do not use switch over strongly typed enums because Intel C++ compilers dont support them yet. + if (m_level == Level::Debug) { + base::utils::Str::replaceFirstWithEscape(m_format, base::consts::kSeverityLevelFormatSpecifier, + base::consts::kDebugLevelLogValue); + base::utils::Str::replaceFirstWithEscape(m_format, base::consts::kSeverityLevelShortFormatSpecifier, + base::consts::kDebugLevelShortLogValue); + } else if (m_level == Level::Info) { + base::utils::Str::replaceFirstWithEscape(m_format, base::consts::kSeverityLevelFormatSpecifier, + base::consts::kInfoLevelLogValue); + base::utils::Str::replaceFirstWithEscape(m_format, base::consts::kSeverityLevelShortFormatSpecifier, + base::consts::kInfoLevelShortLogValue); + } else if (m_level == Level::Warning) { + base::utils::Str::replaceFirstWithEscape(m_format, base::consts::kSeverityLevelFormatSpecifier, + base::consts::kWarningLevelLogValue); + base::utils::Str::replaceFirstWithEscape(m_format, base::consts::kSeverityLevelShortFormatSpecifier, + base::consts::kWarningLevelShortLogValue); + } else if (m_level == Level::Error) { + base::utils::Str::replaceFirstWithEscape(m_format, base::consts::kSeverityLevelFormatSpecifier, + base::consts::kErrorLevelLogValue); + base::utils::Str::replaceFirstWithEscape(m_format, base::consts::kSeverityLevelShortFormatSpecifier, + base::consts::kErrorLevelShortLogValue); + } else if (m_level == Level::Fatal) { + base::utils::Str::replaceFirstWithEscape(m_format, base::consts::kSeverityLevelFormatSpecifier, + base::consts::kFatalLevelLogValue); + base::utils::Str::replaceFirstWithEscape(m_format, base::consts::kSeverityLevelShortFormatSpecifier, + base::consts::kFatalLevelShortLogValue); + } else if (m_level == Level::Verbose) { + base::utils::Str::replaceFirstWithEscape(m_format, base::consts::kSeverityLevelFormatSpecifier, + base::consts::kVerboseLevelLogValue); + base::utils::Str::replaceFirstWithEscape(m_format, base::consts::kSeverityLevelShortFormatSpecifier, + base::consts::kVerboseLevelShortLogValue); + } else if (m_level == Level::Trace) { + base::utils::Str::replaceFirstWithEscape(m_format, base::consts::kSeverityLevelFormatSpecifier, + base::consts::kTraceLevelLogValue); + base::utils::Str::replaceFirstWithEscape(m_format, base::consts::kSeverityLevelShortFormatSpecifier, + base::consts::kTraceLevelShortLogValue); + } + if (hasFlag(base::FormatFlags::User)) { + base::utils::Str::replaceFirstWithEscape(m_format, base::consts::kCurrentUserFormatSpecifier, + m_currentUser); + } + if (hasFlag(base::FormatFlags::Host)) { + base::utils::Str::replaceFirstWithEscape(m_format, base::consts::kCurrentHostFormatSpecifier, + m_currentHost); + } + // Ignore Level::Global and Level::Unknown +} + +// TypedConfigurations + +TypedConfigurations::TypedConfigurations(Configurations* configurations, + base::LogStreamsReferenceMap* logStreamsReference) { + m_configurations = configurations; + m_logStreamsReference = logStreamsReference; + build(m_configurations); +} + +TypedConfigurations::TypedConfigurations(const TypedConfigurations& other) { + this->m_configurations = other.m_configurations; + this->m_logStreamsReference = other.m_logStreamsReference; + build(m_configurations); +} + +bool TypedConfigurations::enabled(Level level) { + return getConfigByVal<bool>(level, &m_enabledMap, "enabled"); +} + +bool TypedConfigurations::toFile(Level level) { + return getConfigByVal<bool>(level, &m_toFileMap, "toFile"); +} + +const std::string& TypedConfigurations::filename(Level level) { + return getConfigByRef<std::string>(level, &m_filenameMap, "filename"); +} + +bool TypedConfigurations::toStandardOutput(Level level) { + return getConfigByVal<bool>(level, &m_toStandardOutputMap, "toStandardOutput"); +} + +const base::LogFormat& TypedConfigurations::logFormat(Level level) { + return getConfigByRef<base::LogFormat>(level, &m_logFormatMap, "logFormat"); +} + +const base::SubsecondPrecision& TypedConfigurations::subsecondPrecision(Level level) { + return getConfigByRef<base::SubsecondPrecision>(level, &m_subsecondPrecisionMap, "subsecondPrecision"); +} + +const base::MillisecondsWidth& TypedConfigurations::millisecondsWidth(Level level) { + return getConfigByRef<base::MillisecondsWidth>(level, &m_subsecondPrecisionMap, "millisecondsWidth"); +} + +bool TypedConfigurations::performanceTracking(Level level) { + return getConfigByVal<bool>(level, &m_performanceTrackingMap, "performanceTracking"); +} + +base::type::fstream_t* TypedConfigurations::fileStream(Level level) { + return getConfigByRef<base::FileStreamPtr>(level, &m_fileStreamMap, "fileStream").get(); +} + +std::size_t TypedConfigurations::maxLogFileSize(Level level) { + return getConfigByVal<std::size_t>(level, &m_maxLogFileSizeMap, "maxLogFileSize"); +} + +std::size_t TypedConfigurations::logFlushThreshold(Level level) { + return getConfigByVal<std::size_t>(level, &m_logFlushThresholdMap, "logFlushThreshold"); +} + +void TypedConfigurations::build(Configurations* configurations) { + base::threading::ScopedLock scopedLock(lock()); + auto getBool = [] (std::string boolStr) -> bool { // Pass by value for trimming + base::utils::Str::trim(boolStr); + return (boolStr == "TRUE" || boolStr == "true" || boolStr == "1"); + }; + std::vector<Configuration*> withFileSizeLimit; + for (Configurations::const_iterator it = configurations->begin(); it != configurations->end(); ++it) { + Configuration* conf = *it; + // We cannot use switch on strong enums because Intel C++ dont support them yet + if (conf->configurationType() == ConfigurationType::Enabled) { + setValue(conf->level(), getBool(conf->value()), &m_enabledMap); + } else if (conf->configurationType() == ConfigurationType::ToFile) { + setValue(conf->level(), getBool(conf->value()), &m_toFileMap); + } else if (conf->configurationType() == ConfigurationType::ToStandardOutput) { + setValue(conf->level(), getBool(conf->value()), &m_toStandardOutputMap); + } else if (conf->configurationType() == ConfigurationType::Filename) { + // We do not yet configure filename but we will configure in another + // loop. This is because if file cannot be created, we will force ToFile + // to be false. Because configuring logger is not necessarily performance + // sensative operation, we can live with another loop; (by the way this loop + // is not very heavy either) + } else if (conf->configurationType() == ConfigurationType::Format) { + setValue(conf->level(), base::LogFormat(conf->level(), + base::type::string_t(conf->value().begin(), conf->value().end())), &m_logFormatMap); + } else if (conf->configurationType() == ConfigurationType::SubsecondPrecision) { + setValue(Level::Global, + base::SubsecondPrecision(static_cast<int>(getULong(conf->value()))), &m_subsecondPrecisionMap); + } else if (conf->configurationType() == ConfigurationType::PerformanceTracking) { + setValue(Level::Global, getBool(conf->value()), &m_performanceTrackingMap); + } else if (conf->configurationType() == ConfigurationType::MaxLogFileSize) { + setValue(conf->level(), static_cast<std::size_t>(getULong(conf->value())), &m_maxLogFileSizeMap); +#if !defined(ELPP_NO_DEFAULT_LOG_FILE) + withFileSizeLimit.push_back(conf); +#endif // !defined(ELPP_NO_DEFAULT_LOG_FILE) + } else if (conf->configurationType() == ConfigurationType::LogFlushThreshold) { + setValue(conf->level(), static_cast<std::size_t>(getULong(conf->value())), &m_logFlushThresholdMap); + } + } + // As mentioned earlier, we will now set filename configuration in separate loop to deal with non-existent files + for (Configurations::const_iterator it = configurations->begin(); it != configurations->end(); ++it) { + Configuration* conf = *it; + if (conf->configurationType() == ConfigurationType::Filename) { + insertFile(conf->level(), conf->value()); + } + } + for (std::vector<Configuration*>::iterator conf = withFileSizeLimit.begin(); + conf != withFileSizeLimit.end(); ++conf) { + // This is not unsafe as mutex is locked in currect scope + unsafeValidateFileRolling((*conf)->level(), base::defaultPreRollOutCallback); + } +} + +unsigned long TypedConfigurations::getULong(std::string confVal) { + bool valid = true; + base::utils::Str::trim(confVal); + valid = !confVal.empty() && std::find_if(confVal.begin(), confVal.end(), + [](char c) { + return !base::utils::Str::isDigit(c); + }) == confVal.end(); + if (!valid) { + valid = false; + ELPP_ASSERT(valid, "Configuration value not a valid integer [" << confVal << "]"); + return 0; + } + return atol(confVal.c_str()); +} + +std::string TypedConfigurations::resolveFilename(const std::string& filename) { + std::string resultingFilename = filename; + std::size_t dateIndex = std::string::npos; + std::string dateTimeFormatSpecifierStr = std::string(base::consts::kDateTimeFormatSpecifierForFilename); + if ((dateIndex = resultingFilename.find(dateTimeFormatSpecifierStr.c_str())) != std::string::npos) { + while (dateIndex > 0 && resultingFilename[dateIndex - 1] == base::consts::kFormatSpecifierChar) { + dateIndex = resultingFilename.find(dateTimeFormatSpecifierStr.c_str(), dateIndex + 1); + } + if (dateIndex != std::string::npos) { + const char* ptr = resultingFilename.c_str() + dateIndex; + // Goto end of specifier + ptr += dateTimeFormatSpecifierStr.size(); + std::string fmt; + if ((resultingFilename.size() > dateIndex) && (ptr[0] == '{')) { + // User has provided format for date/time + ++ptr; + int count = 1; // Start by 1 in order to remove starting brace + std::stringstream ss; + for (; *ptr; ++ptr, ++count) { + if (*ptr == '}') { + ++count; // In order to remove ending brace + break; + } + ss << *ptr; + } + resultingFilename.erase(dateIndex + dateTimeFormatSpecifierStr.size(), count); + fmt = ss.str(); + } else { + fmt = std::string(base::consts::kDefaultDateTimeFormatInFilename); + } + base::SubsecondPrecision ssPrec(3); + std::string now = base::utils::DateTime::getDateTime(fmt.c_str(), &ssPrec); + base::utils::Str::replaceAll(now, '/', '-'); // Replace path element since we are dealing with filename + base::utils::Str::replaceAll(resultingFilename, dateTimeFormatSpecifierStr, now); + } + } + return resultingFilename; +} + +void TypedConfigurations::insertFile(Level level, const std::string& fullFilename) { +#if defined(ELPP_NO_LOG_TO_FILE) + setValue(level, false, &m_toFileMap); + ELPP_UNUSED(fullFilename); + m_fileStreamMap.insert(std::make_pair(level, base::FileStreamPtr(nullptr))); + return; +#endif + std::string resolvedFilename = resolveFilename(fullFilename); + if (resolvedFilename.empty()) { + std::cerr << "Could not load empty file for logging, please re-check your configurations for level [" + << LevelHelper::convertToString(level) << "]"; + } + std::string filePath = base::utils::File::extractPathFromFilename(resolvedFilename, base::consts::kFilePathSeperator); + if (filePath.size() < resolvedFilename.size()) { + base::utils::File::createPath(filePath); + } + auto create = [&](Level level) { + base::LogStreamsReferenceMap::iterator filestreamIter = m_logStreamsReference->find(resolvedFilename); + base::type::fstream_t* fs = nullptr; + if (filestreamIter == m_logStreamsReference->end()) { + // We need a completely new stream, nothing to share with + fs = base::utils::File::newFileStream(resolvedFilename); + m_filenameMap.insert(std::make_pair(level, resolvedFilename)); + m_fileStreamMap.insert(std::make_pair(level, base::FileStreamPtr(fs))); + m_logStreamsReference->insert(std::make_pair(resolvedFilename, base::FileStreamPtr(m_fileStreamMap.at(level)))); + } else { + // Woops! we have an existing one, share it! + m_filenameMap.insert(std::make_pair(level, filestreamIter->first)); + m_fileStreamMap.insert(std::make_pair(level, base::FileStreamPtr(filestreamIter->second))); + fs = filestreamIter->second.get(); + } + if (fs == nullptr) { + // We display bad file error from newFileStream() + ELPP_INTERNAL_ERROR("Setting [TO_FILE] of [" + << LevelHelper::convertToString(level) << "] to FALSE", false); + setValue(level, false, &m_toFileMap); + } + }; + // If we dont have file conf for any level, create it for Level::Global first + // otherwise create for specified level + create(m_filenameMap.empty() && m_fileStreamMap.empty() ? Level::Global : level); +} + +bool TypedConfigurations::unsafeValidateFileRolling(Level level, const PreRollOutCallback& preRollOutCallback) { + base::type::fstream_t* fs = unsafeGetConfigByRef(level, &m_fileStreamMap, "fileStream").get(); + if (fs == nullptr) { + return true; + } + std::size_t maxLogFileSize = unsafeGetConfigByVal(level, &m_maxLogFileSizeMap, "maxLogFileSize"); + std::size_t currFileSize = base::utils::File::getSizeOfFile(fs); + if (maxLogFileSize != 0 && currFileSize >= maxLogFileSize) { + std::string fname = unsafeGetConfigByRef(level, &m_filenameMap, "filename"); + ELPP_INTERNAL_INFO(1, "Truncating log file [" << fname << "] as a result of configurations for level [" + << LevelHelper::convertToString(level) << "]"); + fs->close(); + preRollOutCallback(fname.c_str(), currFileSize); + fs->open(fname, std::fstream::out | std::fstream::trunc); + return true; + } + return false; +} + +// RegisteredHitCounters + +bool RegisteredHitCounters::validateEveryN(const char* filename, base::type::LineNumber lineNumber, std::size_t n) { + base::threading::ScopedLock scopedLock(lock()); + base::HitCounter* counter = get(filename, lineNumber); + if (counter == nullptr) { + registerNew(counter = new base::HitCounter(filename, lineNumber)); + } + counter->validateHitCounts(n); + bool result = (n >= 1 && counter->hitCounts() != 0 && counter->hitCounts() % n == 0); + return result; +} + +/// @brief Validates counter for hits >= N, i.e, registers new if does not exist otherwise updates original one +/// @return True if validation resulted in triggering hit. Meaning logs should be written everytime true is returned +bool RegisteredHitCounters::validateAfterN(const char* filename, base::type::LineNumber lineNumber, std::size_t n) { + base::threading::ScopedLock scopedLock(lock()); + base::HitCounter* counter = get(filename, lineNumber); + if (counter == nullptr) { + registerNew(counter = new base::HitCounter(filename, lineNumber)); + } + // Do not use validateHitCounts here since we do not want to reset counter here + // Note the >= instead of > because we are incrementing + // after this check + if (counter->hitCounts() >= n) + return true; + counter->increment(); + return false; +} + +/// @brief Validates counter for hits are <= n, i.e, registers new if does not exist otherwise updates original one +/// @return True if validation resulted in triggering hit. Meaning logs should be written everytime true is returned +bool RegisteredHitCounters::validateNTimes(const char* filename, base::type::LineNumber lineNumber, std::size_t n) { + base::threading::ScopedLock scopedLock(lock()); + base::HitCounter* counter = get(filename, lineNumber); + if (counter == nullptr) { + registerNew(counter = new base::HitCounter(filename, lineNumber)); + } + counter->increment(); + // Do not use validateHitCounts here since we do not want to reset counter here + if (counter->hitCounts() <= n) + return true; + return false; +} + +// RegisteredLoggers + +RegisteredLoggers::RegisteredLoggers(const LogBuilderPtr& defaultLogBuilder) : + m_defaultLogBuilder(defaultLogBuilder) { + m_defaultConfigurations.setToDefault(); +} + +Logger* RegisteredLoggers::get(const std::string& id, bool forceCreation) { + base::threading::ScopedLock scopedLock(lock()); + Logger* logger_ = base::utils::Registry<Logger, std::string>::get(id); + if (logger_ == nullptr && forceCreation) { + bool validId = Logger::isValidId(id); + if (!validId) { + ELPP_ASSERT(validId, "Invalid logger ID [" << id << "]. Not registering this logger."); + return nullptr; + } + logger_ = new Logger(id, m_defaultConfigurations, &m_logStreamsReference); + logger_->m_logBuilder = m_defaultLogBuilder; + registerNew(id, logger_); + LoggerRegistrationCallback* callback = nullptr; + for (const std::pair<std::string, base::type::LoggerRegistrationCallbackPtr>& h + : m_loggerRegistrationCallbacks) { + callback = h.second.get(); + if (callback != nullptr && callback->enabled()) { + callback->handle(logger_); + } + } + } + return logger_; +} + +bool RegisteredLoggers::remove(const std::string& id) { + if (id == base::consts::kDefaultLoggerId) { + return false; + } + Logger* logger = base::utils::Registry<Logger, std::string>::get(id); + if (logger != nullptr) { + unregister(logger); + } + return true; +} + +void RegisteredLoggers::unsafeFlushAll(void) { + ELPP_INTERNAL_INFO(1, "Flushing all log files"); + for (base::LogStreamsReferenceMap::iterator it = m_logStreamsReference.begin(); + it != m_logStreamsReference.end(); ++it) { + if (it->second.get() == nullptr) continue; + it->second->flush(); + } +} + +// VRegistry + +VRegistry::VRegistry(base::type::VerboseLevel level, base::type::EnumType* pFlags) : m_level(level), m_pFlags(pFlags) { +} + +/// @brief Sets verbose level. Accepted range is 0-9 +void VRegistry::setLevel(base::type::VerboseLevel level) { + base::threading::ScopedLock scopedLock(lock()); + if (level > 9) + m_level = base::consts::kMaxVerboseLevel; + else + m_level = level; +} + +void VRegistry::setModules(const char* modules) { + base::threading::ScopedLock scopedLock(lock()); + auto addSuffix = [](std::stringstream& ss, const char* sfx, const char* prev) { + if (prev != nullptr && base::utils::Str::endsWith(ss.str(), std::string(prev))) { + std::string chr(ss.str().substr(0, ss.str().size() - strlen(prev))); + ss.str(std::string("")); + ss << chr; + } + if (base::utils::Str::endsWith(ss.str(), std::string(sfx))) { + std::string chr(ss.str().substr(0, ss.str().size() - strlen(sfx))); + ss.str(std::string("")); + ss << chr; + } + ss << sfx; + }; + auto insert = [&](std::stringstream& ss, base::type::VerboseLevel level) { + if (!base::utils::hasFlag(LoggingFlag::DisableVModulesExtensions, *m_pFlags)) { + addSuffix(ss, ".h", nullptr); + m_modules.insert(std::make_pair(ss.str(), level)); + addSuffix(ss, ".c", ".h"); + m_modules.insert(std::make_pair(ss.str(), level)); + addSuffix(ss, ".cpp", ".c"); + m_modules.insert(std::make_pair(ss.str(), level)); + addSuffix(ss, ".cc", ".cpp"); + m_modules.insert(std::make_pair(ss.str(), level)); + addSuffix(ss, ".cxx", ".cc"); + m_modules.insert(std::make_pair(ss.str(), level)); + addSuffix(ss, ".-inl.h", ".cxx"); + m_modules.insert(std::make_pair(ss.str(), level)); + addSuffix(ss, ".hxx", ".-inl.h"); + m_modules.insert(std::make_pair(ss.str(), level)); + addSuffix(ss, ".hpp", ".hxx"); + m_modules.insert(std::make_pair(ss.str(), level)); + addSuffix(ss, ".hh", ".hpp"); + } + m_modules.insert(std::make_pair(ss.str(), level)); + }; + bool isMod = true; + bool isLevel = false; + std::stringstream ss; + int level = -1; + for (; *modules; ++modules) { + switch (*modules) { + case '=': + isLevel = true; + isMod = false; + break; + case ',': + isLevel = false; + isMod = true; + if (!ss.str().empty() && level != -1) { + insert(ss, static_cast<base::type::VerboseLevel>(level)); + ss.str(std::string("")); + level = -1; + } + break; + default: + if (isMod) { + ss << *modules; + } else if (isLevel) { + if (isdigit(*modules)) { + level = static_cast<base::type::VerboseLevel>(*modules) - 48; + } + } + break; + } + } + if (!ss.str().empty() && level != -1) { + insert(ss, static_cast<base::type::VerboseLevel>(level)); + } +} + +bool VRegistry::allowed(base::type::VerboseLevel vlevel, const char* file) { + base::threading::ScopedLock scopedLock(lock()); + if (m_modules.empty() || file == nullptr) { + return vlevel <= m_level; + } else { + std::map<std::string, base::type::VerboseLevel>::iterator it = m_modules.begin(); + for (; it != m_modules.end(); ++it) { + if (base::utils::Str::wildCardMatch(file, it->first.c_str())) { + return vlevel <= it->second; + } + } + if (base::utils::hasFlag(LoggingFlag::AllowVerboseIfModuleNotSpecified, *m_pFlags)) { + return true; + } + return false; + } +} + +void VRegistry::setFromArgs(const base::utils::CommandLineArgs* commandLineArgs) { + if (commandLineArgs->hasParam("-v") || commandLineArgs->hasParam("--verbose") || + commandLineArgs->hasParam("-V") || commandLineArgs->hasParam("--VERBOSE")) { + setLevel(base::consts::kMaxVerboseLevel); + } else if (commandLineArgs->hasParamWithValue("--v")) { + setLevel(static_cast<base::type::VerboseLevel>(atoi(commandLineArgs->getParamValue("--v")))); + } else if (commandLineArgs->hasParamWithValue("--V")) { + setLevel(static_cast<base::type::VerboseLevel>(atoi(commandLineArgs->getParamValue("--V")))); + } else if ((commandLineArgs->hasParamWithValue("-vmodule")) && vModulesEnabled()) { + setModules(commandLineArgs->getParamValue("-vmodule")); + } else if (commandLineArgs->hasParamWithValue("-VMODULE") && vModulesEnabled()) { + setModules(commandLineArgs->getParamValue("-VMODULE")); + } +} + +#if !defined(ELPP_DEFAULT_LOGGING_FLAGS) +# define ELPP_DEFAULT_LOGGING_FLAGS 0x0 +#endif // !defined(ELPP_DEFAULT_LOGGING_FLAGS) +// Storage +#if ELPP_ASYNC_LOGGING +Storage::Storage(const LogBuilderPtr& defaultLogBuilder, base::IWorker* asyncDispatchWorker) : +#else +Storage::Storage(const LogBuilderPtr& defaultLogBuilder) : +#endif // ELPP_ASYNC_LOGGING + m_registeredHitCounters(new base::RegisteredHitCounters()), + m_registeredLoggers(new base::RegisteredLoggers(defaultLogBuilder)), + m_flags(ELPP_DEFAULT_LOGGING_FLAGS), + m_vRegistry(new base::VRegistry(0, &m_flags)), +#if ELPP_ASYNC_LOGGING + m_asyncLogQueue(new base::AsyncLogQueue()), + m_asyncDispatchWorker(asyncDispatchWorker), +#endif // ELPP_ASYNC_LOGGING + m_preRollOutCallback(base::defaultPreRollOutCallback) { + // Register default logger + m_registeredLoggers->get(std::string(base::consts::kDefaultLoggerId)); + // We register default logger anyway (worse case it's not going to register) just in case + m_registeredLoggers->get("default"); + // Register performance logger and reconfigure format + Logger* performanceLogger = m_registeredLoggers->get(std::string(base::consts::kPerformanceLoggerId)); + m_registeredLoggers->get("performance"); + performanceLogger->configurations()->setGlobally(ConfigurationType::Format, std::string("%datetime %level %msg")); + performanceLogger->reconfigure(); +#if defined(ELPP_SYSLOG) + // Register syslog logger and reconfigure format + Logger* sysLogLogger = m_registeredLoggers->get(std::string(base::consts::kSysLogLoggerId)); + sysLogLogger->configurations()->setGlobally(ConfigurationType::Format, std::string("%level: %msg")); + sysLogLogger->reconfigure(); +#endif // defined(ELPP_SYSLOG) + addFlag(LoggingFlag::AllowVerboseIfModuleNotSpecified); +#if ELPP_ASYNC_LOGGING + installLogDispatchCallback<base::AsyncLogDispatchCallback>(std::string("AsyncLogDispatchCallback")); +#else + installLogDispatchCallback<base::DefaultLogDispatchCallback>(std::string("DefaultLogDispatchCallback")); +#endif // ELPP_ASYNC_LOGGING +#if defined(ELPP_FEATURE_ALL) || defined(ELPP_FEATURE_PERFORMANCE_TRACKING) + installPerformanceTrackingCallback<base::DefaultPerformanceTrackingCallback> + (std::string("DefaultPerformanceTrackingCallback")); +#endif // defined(ELPP_FEATURE_ALL) || defined(ELPP_FEATURE_PERFORMANCE_TRACKING) + ELPP_INTERNAL_INFO(1, "Easylogging++ has been initialized"); +#if ELPP_ASYNC_LOGGING + m_asyncDispatchWorker->start(); +#endif // ELPP_ASYNC_LOGGING +} + +Storage::~Storage(void) { + ELPP_INTERNAL_INFO(4, "Destroying storage"); +#if ELPP_ASYNC_LOGGING + ELPP_INTERNAL_INFO(5, "Replacing log dispatch callback to synchronous"); + uninstallLogDispatchCallback<base::AsyncLogDispatchCallback>(std::string("AsyncLogDispatchCallback")); + installLogDispatchCallback<base::DefaultLogDispatchCallback>(std::string("DefaultLogDispatchCallback")); + ELPP_INTERNAL_INFO(5, "Destroying asyncDispatchWorker"); + base::utils::safeDelete(m_asyncDispatchWorker); + ELPP_INTERNAL_INFO(5, "Destroying asyncLogQueue"); + base::utils::safeDelete(m_asyncLogQueue); +#endif // ELPP_ASYNC_LOGGING + ELPP_INTERNAL_INFO(5, "Destroying registeredHitCounters"); + base::utils::safeDelete(m_registeredHitCounters); + ELPP_INTERNAL_INFO(5, "Destroying registeredLoggers"); + base::utils::safeDelete(m_registeredLoggers); + ELPP_INTERNAL_INFO(5, "Destroying vRegistry"); + base::utils::safeDelete(m_vRegistry); +} + +bool Storage::hasCustomFormatSpecifier(const char* formatSpecifier) { + base::threading::ScopedLock scopedLock(lock()); + return std::find(m_customFormatSpecifiers.begin(), m_customFormatSpecifiers.end(), + formatSpecifier) != m_customFormatSpecifiers.end(); +} + +void Storage::installCustomFormatSpecifier(const CustomFormatSpecifier& customFormatSpecifier) { + if (hasCustomFormatSpecifier(customFormatSpecifier.formatSpecifier())) { + return; + } + base::threading::ScopedLock scopedLock(lock()); + m_customFormatSpecifiers.push_back(customFormatSpecifier); +} + +bool Storage::uninstallCustomFormatSpecifier(const char* formatSpecifier) { + base::threading::ScopedLock scopedLock(lock()); + std::vector<CustomFormatSpecifier>::iterator it = std::find(m_customFormatSpecifiers.begin(), + m_customFormatSpecifiers.end(), formatSpecifier); + if (it != m_customFormatSpecifiers.end() && strcmp(formatSpecifier, it->formatSpecifier()) == 0) { + m_customFormatSpecifiers.erase(it); + return true; + } + return false; +} + +void Storage::setApplicationArguments(int argc, char** argv) { + m_commandLineArgs.setArgs(argc, argv); + m_vRegistry->setFromArgs(commandLineArgs()); + // default log file +#if !defined(ELPP_DISABLE_LOG_FILE_FROM_ARG) + if (m_commandLineArgs.hasParamWithValue(base::consts::kDefaultLogFileParam)) { + Configurations c; + c.setGlobally(ConfigurationType::Filename, + std::string(m_commandLineArgs.getParamValue(base::consts::kDefaultLogFileParam))); + registeredLoggers()->setDefaultConfigurations(c); + for (base::RegisteredLoggers::iterator it = registeredLoggers()->begin(); + it != registeredLoggers()->end(); ++it) { + it->second->configure(c); + } + } +#endif // !defined(ELPP_DISABLE_LOG_FILE_FROM_ARG) +#if defined(ELPP_LOGGING_FLAGS_FROM_ARG) + if (m_commandLineArgs.hasParamWithValue(base::consts::kLoggingFlagsParam)) { + int userInput = atoi(m_commandLineArgs.getParamValue(base::consts::kLoggingFlagsParam)); + if (ELPP_DEFAULT_LOGGING_FLAGS == 0x0) { + m_flags = userInput; + } else { + base::utils::addFlag<base::type::EnumType>(userInput, &m_flags); + } + } +#endif // defined(ELPP_LOGGING_FLAGS_FROM_ARG) +} + +// DefaultLogDispatchCallback + +void DefaultLogDispatchCallback::handle(const LogDispatchData* data) { + m_data = data; + dispatch(m_data->logMessage()->logger()->logBuilder()->build(m_data->logMessage(), + m_data->dispatchAction() == base::DispatchAction::NormalLog)); +} + +void DefaultLogDispatchCallback::dispatch(base::type::string_t&& logLine) { + if (m_data->dispatchAction() == base::DispatchAction::NormalLog) { + if (m_data->logMessage()->logger()->m_typedConfigurations->toFile(m_data->logMessage()->level())) { + base::type::fstream_t* fs = m_data->logMessage()->logger()->m_typedConfigurations->fileStream( + m_data->logMessage()->level()); + if (fs != nullptr) { + fs->write(logLine.c_str(), logLine.size()); + if (fs->fail()) { + ELPP_INTERNAL_ERROR("Unable to write log to file [" + << m_data->logMessage()->logger()->m_typedConfigurations->filename(m_data->logMessage()->level()) << "].\n" + << "Few possible reasons (could be something else):\n" << " * Permission denied\n" + << " * Disk full\n" << " * Disk is not writable", true); + } else { + if (ELPP->hasFlag(LoggingFlag::ImmediateFlush) + || (m_data->logMessage()->logger()->isFlushNeeded(m_data->logMessage()->level()))) { + m_data->logMessage()->logger()->flush(m_data->logMessage()->level(), fs); + } + } + } else { + ELPP_INTERNAL_ERROR("Log file for [" << LevelHelper::convertToString(m_data->logMessage()->level()) << "] " + << "has not been configured but [TO_FILE] is configured to TRUE. [Logger ID: " + << m_data->logMessage()->logger()->id() << "]", false); + } + } + if (m_data->logMessage()->logger()->m_typedConfigurations->toStandardOutput(m_data->logMessage()->level())) { + if (ELPP->hasFlag(LoggingFlag::ColoredTerminalOutput)) + m_data->logMessage()->logger()->logBuilder()->convertToColoredOutput(&logLine, m_data->logMessage()->level()); + ELPP_COUT << ELPP_COUT_LINE(logLine); + } + } +#if defined(ELPP_SYSLOG) + else if (m_data->dispatchAction() == base::DispatchAction::SysLog) { + // Determine syslog priority + int sysLogPriority = 0; + if (m_data->logMessage()->level() == Level::Fatal) + sysLogPriority = LOG_EMERG; + else if (m_data->logMessage()->level() == Level::Error) + sysLogPriority = LOG_ERR; + else if (m_data->logMessage()->level() == Level::Warning) + sysLogPriority = LOG_WARNING; + else if (m_data->logMessage()->level() == Level::Info) + sysLogPriority = LOG_INFO; + else if (m_data->logMessage()->level() == Level::Debug) + sysLogPriority = LOG_DEBUG; + else + sysLogPriority = LOG_NOTICE; +# if defined(ELPP_UNICODE) + char* line = base::utils::Str::wcharPtrToCharPtr(logLine.c_str()); + syslog(sysLogPriority, "%s", line); + free(line); +# else + syslog(sysLogPriority, "%s", logLine.c_str()); +# endif + } +#endif // defined(ELPP_SYSLOG) +} + +#if ELPP_ASYNC_LOGGING + +// AsyncLogDispatchCallback + +void AsyncLogDispatchCallback::handle(const LogDispatchData* data) { + base::type::string_t logLine = data->logMessage()->logger()->logBuilder()->build(data->logMessage(), + data->dispatchAction() == base::DispatchAction::NormalLog); + if (data->dispatchAction() == base::DispatchAction::NormalLog + && data->logMessage()->logger()->typedConfigurations()->toStandardOutput(data->logMessage()->level())) { + if (ELPP->hasFlag(LoggingFlag::ColoredTerminalOutput)) + data->logMessage()->logger()->logBuilder()->convertToColoredOutput(&logLine, data->logMessage()->level()); + ELPP_COUT << ELPP_COUT_LINE(logLine); + } + // Save resources and only queue if we want to write to file otherwise just ignore handler + if (data->logMessage()->logger()->typedConfigurations()->toFile(data->logMessage()->level())) { + ELPP->asyncLogQueue()->push(AsyncLogItem(*(data->logMessage()), *data, logLine)); + } +} + +// AsyncDispatchWorker +AsyncDispatchWorker::AsyncDispatchWorker() { + setContinueRunning(false); +} + +AsyncDispatchWorker::~AsyncDispatchWorker() { + setContinueRunning(false); + ELPP_INTERNAL_INFO(6, "Stopping dispatch worker - Cleaning log queue"); + clean(); + ELPP_INTERNAL_INFO(6, "Log queue cleaned"); +} + +bool AsyncDispatchWorker::clean(void) { + std::mutex m; + std::unique_lock<std::mutex> lk(m); + cv.wait(lk, [] { return !ELPP->asyncLogQueue()->empty(); }); + emptyQueue(); + lk.unlock(); + cv.notify_one(); + return ELPP->asyncLogQueue()->empty(); +} + +void AsyncDispatchWorker::emptyQueue(void) { + while (!ELPP->asyncLogQueue()->empty()) { + AsyncLogItem data = ELPP->asyncLogQueue()->next(); + handle(&data); + base::threading::msleep(100); + } +} + +void AsyncDispatchWorker::start(void) { + base::threading::msleep(5000); // 5s (why?) + setContinueRunning(true); + std::thread t1(&AsyncDispatchWorker::run, this); + t1.join(); +} + +void AsyncDispatchWorker::handle(AsyncLogItem* logItem) { + LogDispatchData* data = logItem->data(); + LogMessage* logMessage = logItem->logMessage(); + Logger* logger = logMessage->logger(); + base::TypedConfigurations* conf = logger->typedConfigurations(); + base::type::string_t logLine = logItem->logLine(); + if (data->dispatchAction() == base::DispatchAction::NormalLog) { + if (conf->toFile(logMessage->level())) { + base::type::fstream_t* fs = conf->fileStream(logMessage->level()); + if (fs != nullptr) { + fs->write(logLine.c_str(), logLine.size()); + if (fs->fail()) { + ELPP_INTERNAL_ERROR("Unable to write log to file [" + << conf->filename(logMessage->level()) << "].\n" + << "Few possible reasons (could be something else):\n" << " * Permission denied\n" + << " * Disk full\n" << " * Disk is not writable", true); + } else { + if (ELPP->hasFlag(LoggingFlag::ImmediateFlush) || (logger->isFlushNeeded(logMessage->level()))) { + logger->flush(logMessage->level(), fs); + } + } + } else { + ELPP_INTERNAL_ERROR("Log file for [" << LevelHelper::convertToString(logMessage->level()) << "] " + << "has not been configured but [TO_FILE] is configured to TRUE. [Logger ID: " << logger->id() << "]", false); + } + } + } +# if defined(ELPP_SYSLOG) + else if (data->dispatchAction() == base::DispatchAction::SysLog) { + // Determine syslog priority + int sysLogPriority = 0; + if (logMessage->level() == Level::Fatal) + sysLogPriority = LOG_EMERG; + else if (logMessage->level() == Level::Error) + sysLogPriority = LOG_ERR; + else if (logMessage->level() == Level::Warning) + sysLogPriority = LOG_WARNING; + else if (logMessage->level() == Level::Info) + sysLogPriority = LOG_INFO; + else if (logMessage->level() == Level::Debug) + sysLogPriority = LOG_DEBUG; + else + sysLogPriority = LOG_NOTICE; +# if defined(ELPP_UNICODE) + char* line = base::utils::Str::wcharPtrToCharPtr(logLine.c_str()); + syslog(sysLogPriority, "%s", line); + free(line); +# else + syslog(sysLogPriority, "%s", logLine.c_str()); +# endif + } +# endif // defined(ELPP_SYSLOG) +} + +void AsyncDispatchWorker::run(void) { + while (continueRunning()) { + emptyQueue(); + base::threading::msleep(10); // 10ms + } +} +#endif // ELPP_ASYNC_LOGGING + +// DefaultLogBuilder + +base::type::string_t DefaultLogBuilder::build(const LogMessage* logMessage, bool appendNewLine) const { + base::TypedConfigurations* tc = logMessage->logger()->typedConfigurations(); + const base::LogFormat* logFormat = &tc->logFormat(logMessage->level()); + base::type::string_t logLine = logFormat->format(); + char buff[base::consts::kSourceFilenameMaxLength + base::consts::kSourceLineMaxLength] = ""; + const char* bufLim = buff + sizeof(buff); + if (logFormat->hasFlag(base::FormatFlags::AppName)) { + // App name + base::utils::Str::replaceFirstWithEscape(logLine, base::consts::kAppNameFormatSpecifier, + logMessage->logger()->parentApplicationName()); + } + if (logFormat->hasFlag(base::FormatFlags::ThreadId)) { + // Thread ID + base::utils::Str::replaceFirstWithEscape(logLine, base::consts::kThreadIdFormatSpecifier, + ELPP->getThreadName(base::threading::getCurrentThreadId())); + } + if (logFormat->hasFlag(base::FormatFlags::DateTime)) { + // DateTime + base::utils::Str::replaceFirstWithEscape(logLine, base::consts::kDateTimeFormatSpecifier, + base::utils::DateTime::getDateTime(logFormat->dateTimeFormat().c_str(), + &tc->subsecondPrecision(logMessage->level()))); + } + if (logFormat->hasFlag(base::FormatFlags::Function)) { + // Function + base::utils::Str::replaceFirstWithEscape(logLine, base::consts::kLogFunctionFormatSpecifier, logMessage->func()); + } + if (logFormat->hasFlag(base::FormatFlags::File)) { + // File + base::utils::Str::clearBuff(buff, base::consts::kSourceFilenameMaxLength); + base::utils::File::buildStrippedFilename(logMessage->file().c_str(), buff); + base::utils::Str::replaceFirstWithEscape(logLine, base::consts::kLogFileFormatSpecifier, std::string(buff)); + } + if (logFormat->hasFlag(base::FormatFlags::FileBase)) { + // FileBase + base::utils::Str::clearBuff(buff, base::consts::kSourceFilenameMaxLength); + base::utils::File::buildBaseFilename(logMessage->file(), buff); + base::utils::Str::replaceFirstWithEscape(logLine, base::consts::kLogFileBaseFormatSpecifier, std::string(buff)); + } + if (logFormat->hasFlag(base::FormatFlags::Line)) { + // Line + char* buf = base::utils::Str::clearBuff(buff, base::consts::kSourceLineMaxLength); + buf = base::utils::Str::convertAndAddToBuff(logMessage->line(), base::consts::kSourceLineMaxLength, buf, bufLim, false); + base::utils::Str::replaceFirstWithEscape(logLine, base::consts::kLogLineFormatSpecifier, std::string(buff)); + } + if (logFormat->hasFlag(base::FormatFlags::Location)) { + // Location + char* buf = base::utils::Str::clearBuff(buff, + base::consts::kSourceFilenameMaxLength + base::consts::kSourceLineMaxLength); + base::utils::File::buildStrippedFilename(logMessage->file().c_str(), buff); + buf = base::utils::Str::addToBuff(buff, buf, bufLim); + buf = base::utils::Str::addToBuff(":", buf, bufLim); + buf = base::utils::Str::convertAndAddToBuff(logMessage->line(), base::consts::kSourceLineMaxLength, buf, bufLim, + false); + base::utils::Str::replaceFirstWithEscape(logLine, base::consts::kLogLocationFormatSpecifier, std::string(buff)); + } + if (logMessage->level() == Level::Verbose && logFormat->hasFlag(base::FormatFlags::VerboseLevel)) { + // Verbose level + char* buf = base::utils::Str::clearBuff(buff, 1); + buf = base::utils::Str::convertAndAddToBuff(logMessage->verboseLevel(), 1, buf, bufLim, false); + base::utils::Str::replaceFirstWithEscape(logLine, base::consts::kVerboseLevelFormatSpecifier, std::string(buff)); + } + if (logFormat->hasFlag(base::FormatFlags::LogMessage)) { + // Log message + base::utils::Str::replaceFirstWithEscape(logLine, base::consts::kMessageFormatSpecifier, logMessage->message()); + } +#if !defined(ELPP_DISABLE_CUSTOM_FORMAT_SPECIFIERS) + for (std::vector<CustomFormatSpecifier>::const_iterator it = ELPP->customFormatSpecifiers()->begin(); + it != ELPP->customFormatSpecifiers()->end(); ++it) { + std::string fs(it->formatSpecifier()); + base::type::string_t wcsFormatSpecifier(fs.begin(), fs.end()); + base::utils::Str::replaceFirstWithEscape(logLine, wcsFormatSpecifier, it->resolver()(logMessage)); + } +#endif // !defined(ELPP_DISABLE_CUSTOM_FORMAT_SPECIFIERS) + if (appendNewLine) logLine += ELPP_LITERAL("\n"); + return logLine; +} + +// LogDispatcher + +void LogDispatcher::dispatch(void) { + if (m_proceed && m_dispatchAction == base::DispatchAction::None) { + m_proceed = false; + } + if (!m_proceed) { + return; + } + base::threading::ScopedLock scopedLock(ELPP->lock()); + base::TypedConfigurations* tc = m_logMessage.logger()->m_typedConfigurations; + if (ELPP->hasFlag(LoggingFlag::StrictLogFileSizeCheck)) { + tc->validateFileRolling(m_logMessage.level(), ELPP->preRollOutCallback()); + } + LogDispatchCallback* callback = nullptr; + LogDispatchData data; + for (const std::pair<std::string, base::type::LogDispatchCallbackPtr>& h + : ELPP->m_logDispatchCallbacks) { + callback = h.second.get(); + if (callback != nullptr && callback->enabled()) { + data.setLogMessage(&m_logMessage); + data.setDispatchAction(m_dispatchAction); + callback->handle(&data); + } + } +} + +// MessageBuilder + +void MessageBuilder::initialize(Logger* logger) { + m_logger = logger; + m_containerLogSeperator = ELPP->hasFlag(LoggingFlag::NewLineForContainer) ? + ELPP_LITERAL("\n ") : ELPP_LITERAL(", "); +} + +MessageBuilder& MessageBuilder::operator<<(const wchar_t* msg) { + if (msg == nullptr) { + m_logger->stream() << base::consts::kNullPointer; + return *this; + } +# if defined(ELPP_UNICODE) + m_logger->stream() << msg; +# else + char* buff_ = base::utils::Str::wcharPtrToCharPtr(msg); + m_logger->stream() << buff_; + free(buff_); +# endif + if (ELPP->hasFlag(LoggingFlag::AutoSpacing)) { + m_logger->stream() << " "; + } + return *this; +} + +// Writer + +Writer& Writer::construct(Logger* logger, bool needLock) { + m_logger = logger; + initializeLogger(logger->id(), false, needLock); + m_messageBuilder.initialize(m_logger); + return *this; +} + +Writer& Writer::construct(int count, const char* loggerIds, ...) { + if (ELPP->hasFlag(LoggingFlag::MultiLoggerSupport)) { + va_list loggersList; + va_start(loggersList, loggerIds); + const char* id = loggerIds; + for (int i = 0; i < count; ++i) { + m_loggerIds.push_back(std::string(id)); + id = va_arg(loggersList, const char*); + } + va_end(loggersList); + initializeLogger(m_loggerIds.at(0)); + } else { + initializeLogger(std::string(loggerIds)); + } + m_messageBuilder.initialize(m_logger); + return *this; +} + +void Writer::initializeLogger(const std::string& loggerId, bool lookup, bool needLock) { + if (lookup) { + m_logger = ELPP->registeredLoggers()->get(loggerId, ELPP->hasFlag(LoggingFlag::CreateLoggerAutomatically)); + } + if (m_logger == nullptr) { + ELPP->acquireLock(); + if (!ELPP->registeredLoggers()->has(std::string(base::consts::kDefaultLoggerId))) { + // Somehow default logger has been unregistered. Not good! Register again + ELPP->registeredLoggers()->get(std::string(base::consts::kDefaultLoggerId)); + } + ELPP->releaseLock(); // Need to unlock it for next writer + Writer(Level::Debug, m_file, m_line, m_func).construct(1, base::consts::kDefaultLoggerId) + << "Logger [" << loggerId << "] is not registered yet!"; + m_proceed = false; + } else { + if (needLock) { + m_logger->acquireLock(); // This should not be unlocked by checking m_proceed because + // m_proceed can be changed by lines below + } + if (ELPP->hasFlag(LoggingFlag::HierarchicalLogging)) { + m_proceed = m_level == Level::Verbose ? m_logger->enabled(m_level) : + LevelHelper::castToInt(m_level) >= LevelHelper::castToInt(ELPP->m_loggingLevel); + } else { + m_proceed = m_logger->enabled(m_level); + } + } +} + +void Writer::processDispatch() { +#if ELPP_LOGGING_ENABLED + if (ELPP->hasFlag(LoggingFlag::MultiLoggerSupport)) { + bool firstDispatched = false; + base::type::string_t logMessage; + std::size_t i = 0; + do { + if (m_proceed) { + if (firstDispatched) { + m_logger->stream() << logMessage; + } else { + firstDispatched = true; + if (m_loggerIds.size() > 1) { + logMessage = m_logger->stream().str(); + } + } + triggerDispatch(); + } else if (m_logger != nullptr) { + m_logger->stream().str(ELPP_LITERAL("")); + m_logger->releaseLock(); + } + if (i + 1 < m_loggerIds.size()) { + initializeLogger(m_loggerIds.at(i + 1)); + } + } while (++i < m_loggerIds.size()); + } else { + if (m_proceed) { + triggerDispatch(); + } else if (m_logger != nullptr) { + m_logger->stream().str(ELPP_LITERAL("")); + m_logger->releaseLock(); + } + } +#else + if (m_logger != nullptr) { + m_logger->stream().str(ELPP_LITERAL("")); + m_logger->releaseLock(); + } +#endif // ELPP_LOGGING_ENABLED +} + +void Writer::triggerDispatch(void) { + if (m_proceed) { + base::LogDispatcher(m_proceed, LogMessage(m_level, m_file, m_line, m_func, m_verboseLevel, + m_logger), m_dispatchAction).dispatch(); + } + if (m_logger != nullptr) { + m_logger->stream().str(ELPP_LITERAL("")); + m_logger->releaseLock(); + } + if (m_proceed && m_level == Level::Fatal + && !ELPP->hasFlag(LoggingFlag::DisableApplicationAbortOnFatalLog)) { + base::Writer(Level::Warning, m_file, m_line, m_func).construct(1, base::consts::kDefaultLoggerId) + << "Aborting application. Reason: Fatal log at [" << m_file << ":" << m_line << "]"; + std::stringstream reasonStream; + reasonStream << "Fatal log at [" << m_file << ":" << m_line << "]" + << " If you wish to disable 'abort on fatal log' please use " + << "el::Helpers::addFlag(el::LoggingFlag::DisableApplicationAbortOnFatalLog)"; + base::utils::abort(1, reasonStream.str()); + } + m_proceed = false; +} + +// PErrorWriter + +PErrorWriter::~PErrorWriter(void) { + if (m_proceed) { +#if ELPP_COMPILER_MSVC + char buff[256]; + strerror_s(buff, 256, errno); + m_logger->stream() << ": " << buff << " [" << errno << "]"; +#else + m_logger->stream() << ": " << strerror(errno) << " [" << errno << "]"; +#endif + } +} + +// PerformanceTracker + +#if defined(ELPP_FEATURE_ALL) || defined(ELPP_FEATURE_PERFORMANCE_TRACKING) + +PerformanceTracker::PerformanceTracker(const std::string& blockName, + base::TimestampUnit timestampUnit, + const std::string& loggerId, + bool scopedLog, Level level) : + m_blockName(blockName), m_timestampUnit(timestampUnit), m_loggerId(loggerId), m_scopedLog(scopedLog), + m_level(level), m_hasChecked(false), m_lastCheckpointId(std::string()), m_enabled(false) { +#if !defined(ELPP_DISABLE_PERFORMANCE_TRACKING) && ELPP_LOGGING_ENABLED + // We store it locally so that if user happen to change configuration by the end of scope + // or before calling checkpoint, we still depend on state of configuraton at time of construction + el::Logger* loggerPtr = ELPP->registeredLoggers()->get(loggerId, false); + m_enabled = loggerPtr != nullptr && loggerPtr->m_typedConfigurations->performanceTracking(m_level); + if (m_enabled) { + base::utils::DateTime::gettimeofday(&m_startTime); + } +#endif // !defined(ELPP_DISABLE_PERFORMANCE_TRACKING) && ELPP_LOGGING_ENABLED +} + +PerformanceTracker::~PerformanceTracker(void) { +#if !defined(ELPP_DISABLE_PERFORMANCE_TRACKING) && ELPP_LOGGING_ENABLED + if (m_enabled) { + base::threading::ScopedLock scopedLock(lock()); + if (m_scopedLog) { + base::utils::DateTime::gettimeofday(&m_endTime); + base::type::string_t formattedTime = getFormattedTimeTaken(); + PerformanceTrackingData data(PerformanceTrackingData::DataType::Complete); + data.init(this); + data.m_formattedTimeTaken = formattedTime; + PerformanceTrackingCallback* callback = nullptr; + for (const std::pair<std::string, base::type::PerformanceTrackingCallbackPtr>& h + : ELPP->m_performanceTrackingCallbacks) { + callback = h.second.get(); + if (callback != nullptr && callback->enabled()) { + callback->handle(&data); + } + } + } + } +#endif // !defined(ELPP_DISABLE_PERFORMANCE_TRACKING) +} + +void PerformanceTracker::checkpoint(const std::string& id, const char* file, base::type::LineNumber line, + const char* func) { +#if !defined(ELPP_DISABLE_PERFORMANCE_TRACKING) && ELPP_LOGGING_ENABLED + if (m_enabled) { + base::threading::ScopedLock scopedLock(lock()); + base::utils::DateTime::gettimeofday(&m_endTime); + base::type::string_t formattedTime = m_hasChecked ? getFormattedTimeTaken(m_lastCheckpointTime) : ELPP_LITERAL(""); + PerformanceTrackingData data(PerformanceTrackingData::DataType::Checkpoint); + data.init(this); + data.m_checkpointId = id; + data.m_file = file; + data.m_line = line; + data.m_func = func; + data.m_formattedTimeTaken = formattedTime; + PerformanceTrackingCallback* callback = nullptr; + for (const std::pair<std::string, base::type::PerformanceTrackingCallbackPtr>& h + : ELPP->m_performanceTrackingCallbacks) { + callback = h.second.get(); + if (callback != nullptr && callback->enabled()) { + callback->handle(&data); + } + } + base::utils::DateTime::gettimeofday(&m_lastCheckpointTime); + m_hasChecked = true; + m_lastCheckpointId = id; + } +#endif // !defined(ELPP_DISABLE_PERFORMANCE_TRACKING) && ELPP_LOGGING_ENABLED + ELPP_UNUSED(id); + ELPP_UNUSED(file); + ELPP_UNUSED(line); + ELPP_UNUSED(func); +} + +const base::type::string_t PerformanceTracker::getFormattedTimeTaken(struct timeval startTime) const { + if (ELPP->hasFlag(LoggingFlag::FixedTimeFormat)) { + base::type::stringstream_t ss; + ss << base::utils::DateTime::getTimeDifference(m_endTime, + startTime, m_timestampUnit) << " " << base::consts::kTimeFormats[static_cast<base::type::EnumType> + (m_timestampUnit)].unit; + return ss.str(); + } + return base::utils::DateTime::formatTime(base::utils::DateTime::getTimeDifference(m_endTime, + startTime, m_timestampUnit), m_timestampUnit); +} + +#endif // defined(ELPP_FEATURE_ALL) || defined(ELPP_FEATURE_PERFORMANCE_TRACKING) + +namespace debug { +#if defined(ELPP_FEATURE_ALL) || defined(ELPP_FEATURE_CRASH_LOG) + +// StackTrace + +StackTrace::StackTraceEntry::StackTraceEntry(std::size_t index, const char* loc, const char* demang, const char* hex, + const char* addr) { + m_index = index; + m_location = std::string(loc); + m_demangled = std::string(demang); + m_hex = std::string(hex); + m_addr = std::string(addr); +} + +std::ostream& operator<<(std::ostream& ss, const StackTrace::StackTraceEntry& si) { + ss << "[" << si.m_index << "] " << si.m_location << (si.m_demangled.empty() ? "" : ":") << si.m_demangled + << (si.m_hex.empty() ? "" : "+") << si.m_hex << si.m_addr; + return ss; +} + +std::ostream& operator<<(std::ostream& os, const StackTrace& st) { + std::vector<StackTrace::StackTraceEntry>::const_iterator it = st.m_stack.begin(); + while (it != st.m_stack.end()) { + os << " " << *it++ << "\n"; + } + return os; +} + +void StackTrace::generateNew(void) { +#if ELPP_STACKTRACE + m_stack.clear(); + void* stack[kMaxStack]; + unsigned int size = backtrace(stack, kMaxStack); + char** strings = backtrace_symbols(stack, size); + if (size > kStackStart) { // Skip StackTrace c'tor and generateNew + for (std::size_t i = kStackStart; i < size; ++i) { + char* mangName = nullptr; + char* hex = nullptr; + char* addr = nullptr; + for (char* c = strings[i]; *c; ++c) { + switch (*c) { + case '(': + mangName = c; + break; + case '+': + hex = c; + break; + case ')': + addr = c; + break; + default: + break; + } + } + // Perform demangling if parsed properly + if (mangName != nullptr && hex != nullptr && addr != nullptr && mangName < hex) { + *mangName++ = '\0'; + *hex++ = '\0'; + *addr++ = '\0'; + int status = 0; + char* demangName = abi::__cxa_demangle(mangName, 0, 0, &status); + // if demangling is successful, output the demangled function name + if (status == 0) { + // Success (see http://gcc.gnu.org/onlinedocs/libstdc++/libstdc++-html-USERS-4.3/a01696.html) + StackTraceEntry entry(i - 1, strings[i], demangName, hex, addr); + m_stack.push_back(entry); + } else { + // Not successful - we will use mangled name + StackTraceEntry entry(i - 1, strings[i], mangName, hex, addr); + m_stack.push_back(entry); + } + free(demangName); + } else { + StackTraceEntry entry(i - 1, strings[i]); + m_stack.push_back(entry); + } + } + } + free(strings); +#else + ELPP_INTERNAL_INFO(1, "Stacktrace generation not supported for selected compiler"); +#endif // ELPP_STACKTRACE +} + +// Static helper functions + +static std::string crashReason(int sig) { + std::stringstream ss; + bool foundReason = false; + for (int i = 0; i < base::consts::kCrashSignalsCount; ++i) { + if (base::consts::kCrashSignals[i].numb == sig) { + ss << "Application has crashed due to [" << base::consts::kCrashSignals[i].name << "] signal"; + if (ELPP->hasFlag(el::LoggingFlag::LogDetailedCrashReason)) { + ss << std::endl << + " " << base::consts::kCrashSignals[i].brief << std::endl << + " " << base::consts::kCrashSignals[i].detail; + } + foundReason = true; + } + } + if (!foundReason) { + ss << "Application has crashed due to unknown signal [" << sig << "]"; + } + return ss.str(); +} +/// @brief Logs reason of crash from sig +static void logCrashReason(int sig, bool stackTraceIfAvailable, Level level, const char* logger) { + std::stringstream ss; + ss << "CRASH HANDLED; "; + ss << crashReason(sig); +#if ELPP_STACKTRACE + if (stackTraceIfAvailable) { + ss << std::endl << " ======= Backtrace: =========" << std::endl << base::debug::StackTrace(); + } +#else + ELPP_UNUSED(stackTraceIfAvailable); +#endif // ELPP_STACKTRACE + ELPP_WRITE_LOG(el::base::Writer, level, base::DispatchAction::NormalLog, logger) << ss.str(); +} + +static inline void crashAbort(int sig) { + base::utils::abort(sig, std::string()); +} + +/// @brief Default application crash handler +/// +/// @detail This function writes log using 'default' logger, prints stack trace for GCC based compilers and aborts program. +static inline void defaultCrashHandler(int sig) { + base::debug::logCrashReason(sig, true, Level::Fatal, base::consts::kDefaultLoggerId); + base::debug::crashAbort(sig); +} + +// CrashHandler + +CrashHandler::CrashHandler(bool useDefault) { + if (useDefault) { + setHandler(defaultCrashHandler); + } +} + +void CrashHandler::setHandler(const Handler& cHandler) { + m_handler = cHandler; +#if defined(ELPP_HANDLE_SIGABRT) + int i = 0; // SIGABRT is at base::consts::kCrashSignals[0] +#else + int i = 1; +#endif // defined(ELPP_HANDLE_SIGABRT) + for (; i < base::consts::kCrashSignalsCount; ++i) { + m_handler = signal(base::consts::kCrashSignals[i].numb, cHandler); + } +} + +#endif // defined(ELPP_FEATURE_ALL) || defined(ELPP_FEATURE_CRASH_LOG) +} // namespace debug +} // namespace base + +// el + +// Helpers + +#if defined(ELPP_FEATURE_ALL) || defined(ELPP_FEATURE_CRASH_LOG) + +void Helpers::crashAbort(int sig, const char* sourceFile, unsigned int long line) { + std::stringstream ss; + ss << base::debug::crashReason(sig).c_str(); + ss << " - [Called el::Helpers::crashAbort(" << sig << ")]"; + if (sourceFile != nullptr && strlen(sourceFile) > 0) { + ss << " - Source: " << sourceFile; + if (line > 0) + ss << ":" << line; + else + ss << " (line number not specified)"; + } + base::utils::abort(sig, ss.str()); +} + +void Helpers::logCrashReason(int sig, bool stackTraceIfAvailable, Level level, const char* logger) { + el::base::debug::logCrashReason(sig, stackTraceIfAvailable, level, logger); +} + +#endif // defined(ELPP_FEATURE_ALL) || defined(ELPP_FEATURE_CRASH_LOG) + +// Loggers + +Logger* Loggers::getLogger(const std::string& identity, bool registerIfNotAvailable) { + base::threading::ScopedLock scopedLock(ELPP->lock()); + return ELPP->registeredLoggers()->get(identity, registerIfNotAvailable); +} + +void Loggers::setDefaultLogBuilder(el::LogBuilderPtr& logBuilderPtr) { + ELPP->registeredLoggers()->setDefaultLogBuilder(logBuilderPtr); +} + +bool Loggers::unregisterLogger(const std::string& identity) { + base::threading::ScopedLock scopedLock(ELPP->lock()); + return ELPP->registeredLoggers()->remove(identity); +} + +bool Loggers::hasLogger(const std::string& identity) { + base::threading::ScopedLock scopedLock(ELPP->lock()); + return ELPP->registeredLoggers()->has(identity); +} + +Logger* Loggers::reconfigureLogger(Logger* logger, const Configurations& configurations) { + if (!logger) return nullptr; + logger->configure(configurations); + return logger; +} + +Logger* Loggers::reconfigureLogger(const std::string& identity, const Configurations& configurations) { + return Loggers::reconfigureLogger(Loggers::getLogger(identity), configurations); +} + +Logger* Loggers::reconfigureLogger(const std::string& identity, ConfigurationType configurationType, + const std::string& value) { + Logger* logger = Loggers::getLogger(identity); + if (logger == nullptr) { + return nullptr; + } + logger->configurations()->set(Level::Global, configurationType, value); + logger->reconfigure(); + return logger; +} + +void Loggers::reconfigureAllLoggers(const Configurations& configurations) { + for (base::RegisteredLoggers::iterator it = ELPP->registeredLoggers()->begin(); + it != ELPP->registeredLoggers()->end(); ++it) { + Loggers::reconfigureLogger(it->second, configurations); + } +} + +void Loggers::reconfigureAllLoggers(Level level, ConfigurationType configurationType, + const std::string& value) { + for (base::RegisteredLoggers::iterator it = ELPP->registeredLoggers()->begin(); + it != ELPP->registeredLoggers()->end(); ++it) { + Logger* logger = it->second; + logger->configurations()->set(level, configurationType, value); + logger->reconfigure(); + } +} + +void Loggers::setDefaultConfigurations(const Configurations& configurations, bool reconfigureExistingLoggers) { + ELPP->registeredLoggers()->setDefaultConfigurations(configurations); + if (reconfigureExistingLoggers) { + Loggers::reconfigureAllLoggers(configurations); + } +} + +const Configurations* Loggers::defaultConfigurations(void) { + return ELPP->registeredLoggers()->defaultConfigurations(); +} + +const base::LogStreamsReferenceMap* Loggers::logStreamsReference(void) { + return ELPP->registeredLoggers()->logStreamsReference(); +} + +base::TypedConfigurations Loggers::defaultTypedConfigurations(void) { + return base::TypedConfigurations( + ELPP->registeredLoggers()->defaultConfigurations(), + ELPP->registeredLoggers()->logStreamsReference()); +} + +std::vector<std::string>* Loggers::populateAllLoggerIds(std::vector<std::string>* targetList) { + targetList->clear(); + for (base::RegisteredLoggers::iterator it = ELPP->registeredLoggers()->list().begin(); + it != ELPP->registeredLoggers()->list().end(); ++it) { + targetList->push_back(it->first); + } + return targetList; +} + +void Loggers::configureFromGlobal(const char* globalConfigurationFilePath) { + std::ifstream gcfStream(globalConfigurationFilePath, std::ifstream::in); + ELPP_ASSERT(gcfStream.is_open(), "Unable to open global configuration file [" << globalConfigurationFilePath + << "] for parsing."); + std::string line = std::string(); + std::stringstream ss; + Logger* logger = nullptr; + auto configure = [&](void) { + ELPP_INTERNAL_INFO(8, "Configuring logger: '" << logger->id() << "' with configurations \n" << ss.str() + << "\n--------------"); + Configurations c; + c.parseFromText(ss.str()); + logger->configure(c); + }; + while (gcfStream.good()) { + std::getline(gcfStream, line); + ELPP_INTERNAL_INFO(1, "Parsing line: " << line); + base::utils::Str::trim(line); + if (Configurations::Parser::isComment(line)) continue; + Configurations::Parser::ignoreComments(&line); + base::utils::Str::trim(line); + if (line.size() > 2 && base::utils::Str::startsWith(line, std::string(base::consts::kConfigurationLoggerId))) { + if (!ss.str().empty() && logger != nullptr) { + configure(); + } + ss.str(std::string("")); + line = line.substr(2); + base::utils::Str::trim(line); + if (line.size() > 1) { + ELPP_INTERNAL_INFO(1, "Getting logger: '" << line << "'"); + logger = getLogger(line); + } + } else { + ss << line << "\n"; + } + } + if (!ss.str().empty() && logger != nullptr) { + configure(); + } +} + +bool Loggers::configureFromArg(const char* argKey) { +#if defined(ELPP_DISABLE_CONFIGURATION_FROM_PROGRAM_ARGS) + ELPP_UNUSED(argKey); +#else + if (!Helpers::commandLineArgs()->hasParamWithValue(argKey)) { + return false; + } + configureFromGlobal(Helpers::commandLineArgs()->getParamValue(argKey)); +#endif // defined(ELPP_DISABLE_CONFIGURATION_FROM_PROGRAM_ARGS) + return true; +} + +void Loggers::flushAll(void) { + ELPP->registeredLoggers()->flushAll(); +} + +void Loggers::setVerboseLevel(base::type::VerboseLevel level) { + ELPP->vRegistry()->setLevel(level); +} + +base::type::VerboseLevel Loggers::verboseLevel(void) { + return ELPP->vRegistry()->level(); +} + +void Loggers::setVModules(const char* modules) { + if (ELPP->vRegistry()->vModulesEnabled()) { + ELPP->vRegistry()->setModules(modules); + } +} + +void Loggers::clearVModules(void) { + ELPP->vRegistry()->clearModules(); +} + +// VersionInfo + +const std::string VersionInfo::version(void) { + return std::string("9.94.2"); +} +/// @brief Release date of current version +const std::string VersionInfo::releaseDate(void) { + return std::string("12-04-2017 1621hrs"); +} + +} // namespace el |