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doorlockd-mirror/doorlockd/logger.h
2015-05-14 22:03:00 +02:00

61 lines
1.4 KiB
C++

#ifndef LOGGER_H
#define LOGGER_H
#include <ostream>
#include <string>
#include <sstream>
#include <mutex>
/**
* @brief The LogLevel enum
*/
enum class LogLevel : unsigned char
{
off, /// disable logging
error, /// error conditions
warning, /// warning conditions
notice, /// normal but significant conditions
info, /// informational messages
debug, /// debug-level messages
debug2 /// more debug-level messages
};
/**
* @brief The Logger class
*
* The logger class is a thread-safe class which is used for formatting and forwarding
* log messages.
*/
class Logger final {
public:
static Logger &get();
/// Log a string
void operator() (const std::string &message, const LogLevel level = LogLevel::debug) const;
/// Log a ostringstream
void operator() (const std::ostringstream &message, const LogLevel level = LogLevel::debug) const;
/// Log a format string
void operator() (const LogLevel level, const char* format, ...) const;
/// Set minimum required log level to generate output
void level(const LogLevel level);
/// Get minimum required log level to generate output
LogLevel level() const;
private:
/**
* @brief Constructor
* @param level Minimum required log level to generate output
*/
Logger(const LogLevel level);
~Logger();
LogLevel _level;
mutable std::mutex _ostreamMutex;
};
#endif