spdlog/include/c11log/details/line_logger.h
2014-03-28 16:16:36 +03:00

83 lines
2.0 KiB
C++

#pragma once
#include "../common_types.h"
#include "../logger.h"
#include "stack_oss.h"
// line logger class. should be used by the logger as an rvalue only.
// aggregates logging string until the end of the line and then calls the logger upon destruction
namespace c11log
{
//class logger;
namespace details
{
class line_logger
{
public:
line_logger(logger* callback_logger, level::level_enum msg_level, bool enabled):
_callback_logger(callback_logger),
_log_msg(),
_oss(),
_enabled(enabled)
{
if(enabled)
{
_log_msg.msg_time = log_clock::now();
_log_msg.msg_level = msg_level;
callback_logger->_formatter->format_header(callback_logger->_logger_name,
_log_msg.msg_level,
_log_msg.msg_time,
_oss);
_log_msg.msg_header_size = _oss.size();
}
}
// No copy intended. Only move
line_logger(const line_logger& other) = delete;
line_logger& operator=(const line_logger&) = delete;
line_logger& operator=(line_logger&&) = delete;
line_logger(line_logger&& other) :
_callback_logger(other._callback_logger),
_log_msg(other._log_msg),
// The move ctor should only be called on start of logging line,
// where no logging happened yet for this line so no need to copy the oss from the other
_oss(),
_enabled(other._enabled) {}
~line_logger()
{
if (_enabled)
{
_oss << os::eol();
_log_msg.msg_buf = _oss.buf();
_callback_logger->_log_it(_log_msg);
}
}
template<typename T>
line_logger&& operator<<(const T& what)
{
if (_enabled)
_oss << what;
return std::move(*this);
}
private:
logger* _callback_logger;
c11log::log_msg _log_msg;
details::stack_oss _oss;
bool _enabled;
};
} //Namespace details
} // Namespace c11log