namespace mrpt::system

System helpers and utilities.

namespace system {

// namespaces

namespace mrpt::system::os;

// typedefs

typedef std::function<void(std::string_view msg, const mrpt::system::VerbosityLevel level, std::string_view loggerName, const mrpt::Clock::time_point timestamp)> output_logger_callback_t;
typedef mrpt::Clock::time_point TTimeStamp;

// enums

enum ConsoleBackgroundColor;
enum ConsoleForegroundColor;
enum ConsoleTextStyle;
enum TProcessPriority;
enum TThreadPriority;
enum VerbosityLevel;

// structs

struct COutputLoggerStreamWrapper;
struct CTimeLoggerEntry;
struct CTimeLoggerSaveAtDtor;
struct TTimeParts;

// classes

class CConsoleRedirector;
class CControlledRateTimer;
class CDirectoryExplorer;
class CFileSystemWatcher;

template <class DATA_PARAMS, class POOLABLE_DATA>
class CGenericMemoryPool;

class CObservable;
class CObserver;
class COutputLogger;
class CRateTimer;
class CTicTac;
class CTimeLogger;
class WorkerThreadsPool;
class mrptEvent;
class mrptEventOnDestroy;

// global functions

void global_profiler_enter(const char* func_name);
void global_profiler_leave(const char* func_name);
mrpt::system::CTimeLogger& global_profiler_getref();

template <typename T>
T str2num(std::string const& value);

uint16_t compute_CRC16(const std::vector<uint8_t>& data, const uint16_t gen_pol = 0x8005);
uint16_t compute_CRC16(const uint8_t* data, size_t len, const uint16_t gen_pol = 0x8005);

uint32_t compute_CRC32(
    const std::vector<uint8_t>& data,
    const uint32_t gen_pol = 0xEDB88320L
    );

uint32_t compute_CRC32(const uint8_t* data, size_t len, const uint32_t gen_pol = 0xEDB88320L);
const TTimeStamp& InvalidTimeStamp();
mrpt::system::TTimeStamp buildTimestampFromParts(const mrpt::system::TTimeParts& p);
mrpt::system::TTimeStamp buildTimestampFromPartsLocalTime(const mrpt::system::TTimeParts& p);
void timestampToParts(TTimeStamp t, TTimeParts& p, bool localTime = false);
mrpt::system::TTimeStamp getCurrentTime();
mrpt::system::TTimeStamp now();
mrpt::system::TTimeStamp time_tToTimestamp(const double t);
mrpt::system::TTimeStamp time_tToTimestamp(const time_t& t);
double timestampTotime_t(const mrpt::system::TTimeStamp t);
double timestampToDouble(const mrpt::system::TTimeStamp t);
double timeDifference(const mrpt::system::TTimeStamp& t_first, const mrpt::system::TTimeStamp& t_later);
double now_double();
mrpt::system::TTimeStamp timestampAdd(const mrpt::system::TTimeStamp tim, const double num_seconds);
std::string formatTimeInterval(const double timeSeconds);
std::string dateTimeToString(const mrpt::system::TTimeStamp t);
std::string dateTimeLocalToString(const mrpt::system::TTimeStamp t);
std::string dateToString(const mrpt::system::TTimeStamp t);
double extractDayTimeFromTimestamp(const mrpt::system::TTimeStamp t);
std::string timeToString(const mrpt::system::TTimeStamp t);
std::string timeLocalToString(const mrpt::system::TTimeStamp t, unsigned int secondFractionDigits = 6);
std::string intervalFormat(const double seconds);
std::ostream& operator << (std::ostream& o, const TTimeStamp& t);
std::string getTempFileName();
std::string getcwd();
std::string getShareMRPTDir();
bool createDirectory(const std::string& dirName);
bool deleteFile(const std::string& fileName);
void deleteFiles(const std::string& s);

bool renameFile(
    const std::string& oldFileName,
    const std::string& newFileName,
    std::string* error_msg = nullptr
    );

bool deleteFilesInDirectory(const std::string& s, bool deleteDirectoryAsWell = false);
std::string extractFileName(const std::string& filePath);
std::string extractFileExtension(const std::string& filePath, bool ignore_gz = false);
std::string extractFileDirectory(const std::string& filePath);
bool fileExists(const std::string& fileName);
bool directoryExists(const std::string& fileName);

std::string fileNameStripInvalidChars(
    const std::string& filename,
    const char replacement_to_invalid_chars = '_'
    );

std::string fileNameChangeExtension(const std::string& filename, const std::string& newExtension);
uint64_t getFileSize(const std::string& fileName);
time_t getFileModificationTime(const std::string& filename);
std::string filePathSeparatorsToNative(const std::string& filePath);

bool copyFile(
    const std::string& sourceFile,
    const std::string& targetFile,
    std::string* outErrStr = nullptr
    );

std::string toAbsolutePath(const std::string& path, bool resolveToCanonical = false);
std::string pathJoin(const std::vector<std::string>& paths);
std::string md5(const std::string& str);
std::string md5(const std::vector<uint8_t>& str);
std::string md5(const unsigned char* data, size_t len);
unsigned long getMemoryUsage();

template <
    std::size_t alignment,
    typename T,
    typename = std::enable_if_t<std::is_pointer<T>::value>
    >
bool is_aligned(T ptr);

void pause(const std::string& msg = std::string("Press any key to continue..."));
void clearConsole();
std::string MRPT_getCompilationDate();
std::string MRPT_getVersion();
const std::string& getMRPTLicense();
std::string find_mrpt_shared_dir();
void consoleColorAndStyle(ConsoleForegroundColor fg, ConsoleBackgroundColor bg = ConsoleBackgroundColor::DEFAULT, ConsoleTextStyle style = ConsoleTextStyle::REGULAR, bool applyToStdErr = false);

int executeCommand(
    const std::string& command,
    std::string* output = nullptr,
    const std::string& mode = "r"
    );

bool launchProcess(const std::string& command);

bool loadPluginModule(
    const std::string& moduleFileName,
    mrpt::optional_ref<std::string> outErrorMsgs = std::nullopt
    );

bool unloadPluginModule(
    const std::string& moduleFileName,
    mrpt::optional_ref<std::string> outErrorMsgs = std::nullopt
    );

bool loadPluginModules(
    const std::string& moduleFileNames,
    mrpt::optional_ref<std::string> outErrorMsgs = std::nullopt
    );

bool unloadPluginModules(
    const std::string& moduleFileNames,
    mrpt::optional_ref<std::string> outErrorMsgs = std::nullopt
    );

std::string progress(
    const double progressRatio0to1,
    const std::size_t barLength,
    bool encloseInSquareBrackets = true
    );

void changeCurrentThreadPriority(TThreadPriority priority);
void changeCurrentProcessPriority(TProcessPriority priority);
char* strtok(char* str, const char* strDelimit, char** context);

template <class OUT_CONTAINER>
void tokenize(
    const std::string& inString,
    const std::string& inDelimiters,
    OUT_CONTAINER& outTokens,
    bool skipBlankTokens = true
    );

template void tokenize< std::deque< std::string > >(
    const std::string& inString,
    const std::string& inDelimiters,
    std::deque<std::string>& outTokens,
    bool skipBlankTokens
    );

template void tokenize< std::vector< std::string > >(
    const std::string& inString,
    const std::string& inDelimiters,
    std::vector<std::string>& outTokens,
    bool skipBlankTokens
    );

std::string trim(const std::string& str);
std::string upperCase(const std::string& str);
std::string lowerCase(const std::string& str);
void decodeUTF8(const std::string& strUTF8, std::vector<uint16_t>& out_uniStr);
void encodeUTF8(const std::vector<uint16_t>& input, std::string& output);
void encodeBase64(const std::vector<uint8_t>& inputData, std::string& outString);
bool decodeBase64(const std::string& inString, std::vector<uint8_t>& outData);
std::string unitsFormat(const double val, int nDecimalDigits = 2, bool middle_space = true);

std::string rightPad(
    const std::string& str,
    size_t total_len,
    bool truncate_if_larger = false
    );

bool strCmp(const std::string& s1, const std::string& s2);
bool strCmpI(const std::string& s1, const std::string& s2);
bool strStarts(const std::string& str, const std::string& subStr);
bool strStartsI(const std::string& str, const std::string& subStr);

template <typename T>
std::string sprintf_container(const char* fmt, const T& V);

void stringListAsString(
    const std::vector<std::string>& lst,
    std::string& out,
    const std::string& newline = "\r\n"
    );

void stringListAsString(
    const std::deque<std::string>& lst,
    std::string& out,
    const std::string& newline = "\r\n"
    );

size_t nthOccurrence(const std::string& str, const std::string& strToFind, size_t nth);
std::string firstNLines(const std::string& str, size_t n);
void thread_name(const std::string& name, std::thread& theThread);
void thread_name(const std::string& name);
std::string thread_name(std::thread& theThread);
std::string thread_name();

} // namespace system

Typedefs

typedef std::function<void(std::string_view msg, const mrpt::system::VerbosityLevel level, std::string_view loggerName, const mrpt::Clock::time_point timestamp)> output_logger_callback_t

Callback types for use with mrpt::system::COuputLogger.