quickcpplib::_xxx::ringbuffer_log Namespace Reference

Namespaces
namespace	simple_ringbuffer_log_policy_detail

Classes
struct	default_ringbuffer_log_level_checker
	A default ringbuffer log_level checker which returns whatever the log instance's level is. More...
class	ringbuffer_log
	Very fast threadsafe ring buffer log. More...
struct	simple_ringbuffer_log_policy
	A ring buffer log stored in a fixed QUICKCPPLIB_RINGBUFFER_LOG_DEFAULT_ENTRIES_NDEBUG/QUICKCPPLIB_RINGBUFFER_LOG_DEFAULT_ENTRIES_DEBUG std::array recording monotonic counter (8 bytes), high resolution clock time stamp (8 bytes), stack backtrace or func (40 bytes), level (1 byte), 191 bytes of char message. Each record is 256 bytes, therefore the ring buffer wraps after 256/4096 entries by default. More...

Typedefs
template<size_t Bytes = QUICKCPPLIB_RINGBUFFER_LOG_DEFAULT_ENTRIES * 256, class LogLevelChecker = default_ringbuffer_log_level_checker>
using	simple_ringbuffer_log = ringbuffer_log< simple_ringbuffer_log_policy< Bytes >, LogLevelChecker >
	Alias for a simple ringbuffer log.

Enumerations
enum class	level : unsigned char {   none = 0 , fatal , error , warn ,   info , debug , all }
	Level of logged item. More...

Functions
template<class T >
const char *	last190 (const T &v)
	Returns a const char * no more than 190 chars from its end.
template<class Policy , class LogLevelChecker >
std::ostream &	operator<< (std::ostream &s, const ringbuffer_log< Policy, LogLevelChecker > &l)
	std::ostream writer for a log
template<class Policy , class LogLevelChecker >
std::string	csv (const ringbuffer_log< Policy, LogLevelChecker > &l)
	CSV string writer for a log.

Typedef Documentation

simple_ringbuffer_log

template<size_t Bytes = QUICKCPPLIB_RINGBUFFER_LOG_DEFAULT_ENTRIES * 256, class LogLevelChecker = default_ringbuffer_log_level_checker>

using quickcpplib::_xxx::ringbuffer_log::simple_ringbuffer_log = typedef ringbuffer_log<simple_ringbuffer_log_policy<Bytes>, LogLevelChecker>

Alias for a simple ringbuffer log.

Enumeration Type Documentation

level

enum class quickcpplib::_xxx::ringbuffer_log::level : unsigned char

strong

Level of logged item.

Enumerator
none
fatal
error
warn
info
debug
all

  {
    none = 0,
    fatal,
    error,
    warn,
    info,
    debug,
    all
  };

Function Documentation

last190()

template<class T >

const char * quickcpplib::_xxx::ringbuffer_log::last190 ( const T &  v )

inline

Returns a const char * no more than 190 chars from its end.

  {
    size_t size = v.size();
    return size <= 190 ? v.data() : v.data() + (size - 190);
  }

operator<<()

template<class Policy , class LogLevelChecker >

std::ostream & quickcpplib::_xxx::ringbuffer_log::operator<< ( std::ostream &  s, const ringbuffer_log< Policy, LogLevelChecker > &  l  )

inline

std::ostream writer for a log

  {
    for(const auto &i : l)
    {
      s << i;
    }
    return s;
  }

csv()

template<class Policy , class LogLevelChecker >

std::string quickcpplib::_xxx::ringbuffer_log::csv ( const ringbuffer_log< Policy, LogLevelChecker > &  l )

inline

CSV string writer for a log.

  {
    std::stringstream s;
    // timestamp,level,using_code64,using_backtrace,code0,code1,message,backtrace
    s << "timestamp,level,using_code64,using_backtrace,code0,code1,message,backtrace\n";
    for(const auto &i : l)
    {
      csv(s, i);
    }
    return s.str();
  }