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#ifndef LOG_H
#define LOG_H
#include <string>
#include <cstddef>
namespace nitrokey {
namespace log {
//for MSVC
#ifdef ERROR
#undef ERROR
#endif
enum class Loglevel : int {
DEBUG_L2, DEBUG, INFO, WARNING, ERROR
};
class LogHandler {
public:
virtual void print(const std::string &, Loglevel lvl) = 0;
protected:
std::string loglevel_to_str(Loglevel);
};
class StdlogHandler : public LogHandler {
public:
virtual void print(const std::string &, Loglevel lvl);
};
extern StdlogHandler stdlog_handler;
class Log {
public:
Log() : mp_loghandler(&stdlog_handler), m_loglevel(Loglevel::WARNING) {}
static Log &instance() {
if (mp_instance == nullptr) mp_instance = new Log;
return *mp_instance;
}
void operator()(const std::string &, Loglevel);
void set_loglevel(Loglevel lvl) { m_loglevel = lvl; }
void set_handler(LogHandler *handler) { mp_loghandler = handler; }
private:
LogHandler *mp_loghandler;
Loglevel m_loglevel;
static Log *mp_instance;
};
}
}
#ifdef NO_LOG
#define LOG(string, level) while(false){}
#else
#define LOG(string, level) nitrokey::log::Log::instance()((string), (level))
#endif
#endif
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