c++ trace 범용 라이브러리 있음??

[익명(1.228)]

enum trace_channels_e

{

  D_COMMON = 0,

  D_ME,

  NUM_TRACE_CHANNELS

};

class simple_tracer

{

private:

  vector<ostream*> _out {vector<ostream*>(NUM_TRACE_CHANNELS, &cout)};

  vector<bool> _ch_enables{vector<bool>(NUM_TRACE_CHANNELS, true)};

  char _buf[256];

  simple_tracer(){}

  simple_tracer(const simple_tracer& ) = delete;

  static simple_tracer& get() { static simple_tracer inst; return inst; }

public:

  static void trace(trace_channels_e channel, const char* format, ...)

  {

    if(get()._out[channel] && get()._ch_enables[channel])

    {

      va_list args;

      va_start(args, format);

      vsnprintf(get()._buf, 255, format, args);

      va_end(args);

      *(get()._out) << get()._buf;

    }

  }

  static void disable_channel(trace_channels_e channel) { get()._ch_enables[channel] = false; }

  static void enable_channel(trace_channels_e channel) { get()._ch_enables[channel] = true; }

  static void set_ostream(trace_channels_e channel, ostream& os) { get()._out[channel] = &os; }

};

#if ENABLE_TRACING

#define DTRACE(channel, ...) simple_tracer::trace(channel, __VA_ARGS__)

#else

#define DTRACE(...)

#endif

내가 직접 이렇게 만들어서 쓰려니 은근히 불편하네