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easylogging++.cc
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easylogging++.cc
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//
// Bismillah ar-Rahmaan ar-Raheem
//
// Easylogging++ v9.96.7
// Cross-platform logging library for C++ applications
//
// Copyright (c) 2012-2018 Zuhd Web Services
// Copyright (c) 2012-2018 @abumusamq
//
// This library is released under the MIT Licence.
// https://github.com/zuhd-org/easyloggingpp/blob/master/LICENSE
//
// https://zuhd.org
// http://muflihun.com
//
#define EASYLOGGING_CC
#include "easylogging++.h"
#include <unistd.h>
#if defined(AUTO_INITIALIZE_EASYLOGGINGPP)
INITIALIZE_EASYLOGGINGPP
#endif
namespace el {
// el::base
namespace base {
// el::base::consts
namespace consts {
// Level log values - These are values that are replaced in place of %level format specifier
// Extra spaces after format specifiers are only for readability purposes in log files
static const base::type::char_t* kInfoLevelLogValue = ELPP_LITERAL("INFO");
static const base::type::char_t* kDebugLevelLogValue = ELPP_LITERAL("DEBUG");
static const base::type::char_t* kWarningLevelLogValue = ELPP_LITERAL("WARNING");
static const base::type::char_t* kErrorLevelLogValue = ELPP_LITERAL("ERROR");
static const base::type::char_t* kFatalLevelLogValue = ELPP_LITERAL("FATAL");
static const base::type::char_t* kVerboseLevelLogValue =
ELPP_LITERAL("VERBOSE"); // will become VERBOSE-x where x = verbose level
static const base::type::char_t* kTraceLevelLogValue = ELPP_LITERAL("TRACE");
static const base::type::char_t* kInfoLevelShortLogValue = ELPP_LITERAL("I");
static const base::type::char_t* kDebugLevelShortLogValue = ELPP_LITERAL("D");
static const base::type::char_t* kWarningLevelShortLogValue = ELPP_LITERAL("W");
static const base::type::char_t* kErrorLevelShortLogValue = ELPP_LITERAL("E");
static const base::type::char_t* kFatalLevelShortLogValue = ELPP_LITERAL("F");
static const base::type::char_t* kVerboseLevelShortLogValue = ELPP_LITERAL("V");
static const base::type::char_t* kTraceLevelShortLogValue = ELPP_LITERAL("T");
// Format specifiers - These are used to define log format
static const base::type::char_t* kAppNameFormatSpecifier = ELPP_LITERAL("%app");
static const base::type::char_t* kLoggerIdFormatSpecifier = ELPP_LITERAL("%logger");
static const base::type::char_t* kThreadIdFormatSpecifier = ELPP_LITERAL("%thread");
static const base::type::char_t* kSeverityLevelFormatSpecifier = ELPP_LITERAL("%level");
static const base::type::char_t* kSeverityLevelShortFormatSpecifier = ELPP_LITERAL("%levshort");
static const base::type::char_t* kDateTimeFormatSpecifier = ELPP_LITERAL("%datetime");
static const base::type::char_t* kLogFileFormatSpecifier = ELPP_LITERAL("%file");
static const base::type::char_t* kLogFileBaseFormatSpecifier = ELPP_LITERAL("%fbase");
static const base::type::char_t* kLogLineFormatSpecifier = ELPP_LITERAL("%line");
static const base::type::char_t* kLogLocationFormatSpecifier = ELPP_LITERAL("%loc");
static const base::type::char_t* kLogFunctionFormatSpecifier = ELPP_LITERAL("%func");
static const base::type::char_t* kCurrentUserFormatSpecifier = ELPP_LITERAL("%user");
static const base::type::char_t* kCurrentHostFormatSpecifier = ELPP_LITERAL("%host");
static const base::type::char_t* kMessageFormatSpecifier = ELPP_LITERAL("%msg");
static const base::type::char_t* kVerboseLevelFormatSpecifier = ELPP_LITERAL("%vlevel");
static const char* kDateTimeFormatSpecifierForFilename = "%datetime";
// Date/time
static const char* kDays[7] = { "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday" };
static const char* kDaysAbbrev[7] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
static const char* kMonths[12] = { "January", "February", "March", "Apri", "May", "June", "July", "August",
"September", "October", "November", "December"
};
static const char* kMonthsAbbrev[12] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
static const char* kDefaultDateTimeFormat = "%Y-%M-%d %H:%m:%s,%g";
static const char* kDefaultDateTimeFormatInFilename = "%Y-%M-%d_%H-%m";
static const int kYearBase = 1900;
static const char* kAm = "AM";
static const char* kPm = "PM";
// Miscellaneous constants
static const char* kNullPointer = "nullptr";
#if ELPP_VARIADIC_TEMPLATES_SUPPORTED
#endif // ELPP_VARIADIC_TEMPLATES_SUPPORTED
static const base::type::VerboseLevel kMaxVerboseLevel = 9;
static const char* kUnknownUser = "user";
static const char* kUnknownHost = "unknown-host";
//---------------- DEFAULT LOG FILE -----------------------
#if defined(ELPP_NO_DEFAULT_LOG_FILE)
# if ELPP_OS_UNIX
static const char* kDefaultLogFile = "/dev/null";
# elif ELPP_OS_WINDOWS
static const char* kDefaultLogFile = "nul";
# endif // ELPP_OS_UNIX
#elif defined(ELPP_DEFAULT_LOG_FILE)
static const char* kDefaultLogFile = ELPP_DEFAULT_LOG_FILE;
#else
static const char* kDefaultLogFile = "myeasylog.log";
#endif // defined(ELPP_NO_DEFAULT_LOG_FILE)
#if !defined(ELPP_DISABLE_LOG_FILE_FROM_ARG)
static const char* kDefaultLogFileParam = "--default-log-file";
#endif // !defined(ELPP_DISABLE_LOG_FILE_FROM_ARG)
#if defined(ELPP_LOGGING_FLAGS_FROM_ARG)
static const char* kLoggingFlagsParam = "--logging-flags";
#endif // defined(ELPP_LOGGING_FLAGS_FROM_ARG)
static const char* kValidLoggerIdSymbols =
"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-._";
static const char* kConfigurationComment = "##";
static const char* kConfigurationLevel = "*";
static const char* kConfigurationLoggerId = "--";
}
// el::base::utils
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
#ifdef NDEBUG
::_exit(1);
#else
::abort();
#endif
#endif // defined(ELPP_COMPILER_MSVC) && defined(_M_IX86) && defined(_DEBUG)
}
static el::Color colorFromLevel(el::Level level)
{
switch (level)
{
case Level::Error: case Level::Fatal: return el::Color::Red;
case Level::Warning: return el::Color::Yellow;
case Level::Debug: return el::Color::Green;
case Level::Info: return el::Color::Cyan;
case Level::Trace: return el::Color::Magenta;
default: return el::Color::Default;
}
}
static void setConsoleColor(el::Color color, bool bright)
{
#if ELPP_OS_WINDOWS
HANDLE h_stdout = GetStdHandle(STD_OUTPUT_HANDLE);
switch (color)
{
case el::Color::Red: SetConsoleTextAttribute(h_stdout, FOREGROUND_RED | (bright ? FOREGROUND_INTENSITY:0)); break;
case el::Color::Green: SetConsoleTextAttribute(h_stdout, FOREGROUND_GREEN | (bright ? FOREGROUND_INTENSITY:0)); break;
case el::Color::Yellow: SetConsoleTextAttribute(h_stdout, FOREGROUND_RED | FOREGROUND_GREEN | (bright ? FOREGROUND_INTENSITY:0)); break;
case el::Color::Blue: SetConsoleTextAttribute(h_stdout, FOREGROUND_BLUE | (bright ? FOREGROUND_INTENSITY:0)); break;
case el::Color::Magenta: SetConsoleTextAttribute(h_stdout, FOREGROUND_RED | FOREGROUND_BLUE | (bright ? FOREGROUND_INTENSITY:0)); break;
case el::Color::Cyan: SetConsoleTextAttribute(h_stdout, FOREGROUND_GREEN | FOREGROUND_BLUE | (bright ? FOREGROUND_INTENSITY:0)); break;
case el::Color::Default: default: SetConsoleTextAttribute(h_stdout, FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE | (bright ? FOREGROUND_INTENSITY:0)); break;
}
#else
if (ELPP->hasFlag(LoggingFlag::ColoredTerminalOutput))
{
switch (color)
{
case el::Color::Red: ELPP_COUT << (bright ? "\033[1;31m" : "\033[0;31m"); break;
case el::Color::Green: ELPP_COUT << (bright ? "\033[1;32m" : "\033[0;32m"); break;
case el::Color::Yellow: ELPP_COUT << (bright ? "\033[1;33m" : "\033[0;33m"); break;
case el::Color::Blue: ELPP_COUT << (bright ? "\033[1;34m" : "\033[0;34m"); break;
case el::Color::Magenta: ELPP_COUT << (bright ? "\033[1;35m" : "\033[0;35m"); break;
case el::Color::Cyan: ELPP_COUT << (bright ? "\033[1;36m" : "\033[0;36m"); break;
case el::Color::Default: default: ELPP_COUT << "\033[0m"; break;
}
}
#endif
}
} // 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;
}
Level LevelHelper::convertFromStringPrefix(const char* levelStr) {
if ((strncmp(levelStr, "GLOBAL", 6) == 0) || (strncmp(levelStr, "global", 6) == 0))
return Level::Global;
if ((strncmp(levelStr, "DEBUG", 5) == 0) || (strncmp(levelStr, "debug", 5) == 0))
return Level::Debug;
if ((strncmp(levelStr, "INFO", 4) == 0) || (strncmp(levelStr, "info", 4) == 0))
return Level::Info;
if ((strncmp(levelStr, "WARNING", 7) == 0) || (strncmp(levelStr, "warning", 7) == 0))
return Level::Warning;
if ((strncmp(levelStr, "ERROR", 5) == 0) || (strncmp(levelStr, "error", 5) == 0))
return Level::Error;
if ((strncmp(levelStr, "FATAL", 5) == 0) || (strncmp(levelStr, "fatal", 5) == 0))
return Level::Fatal;
if ((strncmp(levelStr, "VERBOSE", 7) == 0) || (strncmp(levelStr, "verbose", 7) == 0))
return Level::Verbose;
if ((strncmp(levelStr, "TRACE", 5) == 0) || (strncmp(levelStr, "trace", 5) == 0))
return Level::Trace;
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);
setGlobally(ConfigurationType::Filename, std::string(base::consts::kDefaultLogFile), true);
#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)
unsafeSetIfNotExist(Level::Global, ConfigurationType::Filename, std::string(base::consts::kDefaultLogFile));
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, Color color) {
if (!m_termSupportsColor) return;
const base::type::char_t* resetColor = ELPP_LITERAL("\x1b[0m");
if (color == Color::Red)
*logLine = ELPP_LITERAL("\x1b[1;31m") + *logLine + resetColor;
else if (color == Color::Yellow)
*logLine = ELPP_LITERAL("\x1b[1;33m") + *logLine + resetColor;
else if (color == Color::Green)
*logLine = ELPP_LITERAL("\x1b[1;32m") + *logLine + resetColor;
else if (color == Color::Cyan)
*logLine = ELPP_LITERAL("\x1b[1;36m") + *logLine + resetColor;
else if (color == Color::Magenta)
*logLine = ELPP_LITERAL("\x1b[1;35m") + *logLine + resetColor;
else if (color == Color::Blue)
*logLine = ELPP_LITERAL("\x1b[1;34m") + *logLine + resetColor;
else if (color == Color::Default)
{
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;
}
}
void LogBuilder::setColor(Color color, bool bright) {
if (m_termSupportsColor)
el::base::utils::setConsoleColor(color, bright);
}
// 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)) {
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();
std::unordered_map<Level, unsigned int>::iterator iter = m_unflushedCount.find(level);
if (iter != m_unflushedCount.end()) {
iter->second = 0;
}
Helpers::validateFileRolling(this, level);
}
}
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;
}
// Since the file stream is appended to or truncated, the current
// offset is the file size.
std::size_t size = static_cast<std::size_t>(fs->tellg());
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[], const std::string &commonPrefix, std::size_t limit) {
if (!commonPrefix.empty()) {
if (!strncmp(filename, commonPrefix.c_str(), commonPrefix.size()))
filename += commonPrefix.size();
}
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);