Tracing.hh

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//=============================================================================
//
//  CLASS Tracing
//
//=============================================================================
 
 
#ifndef ACG_TRACING_HH
#define ACG_TRACING_HH
 
 
//== INCLUDES =================================================================
 
#include "StopWatch.hh"
#include <iostream>
#include <string>
#include "../Config/ACGDefines.hh"
 
 
//== NAMESPACES ===============================================================
 
namespace ACG {
 
 
//== HELPER MACROS ============================================================
 
 
#define ACG_TRACE(_text) ACG::Tracing acg_tracer__(_text)
#define ACG_TRACE_CMD(_text, _cmd) { ACG_TRACE(_text); cmd; }
 
#define ACG_TIMED_TRACE(_text) ACG::TimedTracing acg_tracer__(_text)
#define ACG_TIMED_TRACE_CMD(_text, _cmd) { ACG_TIMED_TRACE(_text); _cmd; }
 
#define ACG_TRACE_PROGRESS acg_tracer__.progress()
 
 
//== CLASS DEFINITION =========================================================
 
 
class ACGDLLEXPORT Tracing
{
public:
 
  Tracing(const std::string& _text,
          std::ostream&      _os = std::cerr)
    : os_(_os)
  { os_ << _text << "  " << std::flush; }
 
 
  ~Tracing() { os_ << "finished.\n" << std::flush; }
 
 
  void progress() {
    os_ << progress_[((++idx_)&=0x3)] << "\b" << std::flush;
  }
 
 
protected:
 
  std::ostream&  os_;
  static char    progress_[4];
  static unsigned char idx_;
};
 
 
//== CLASS DEFINITION =========================================================
 
 
 
class ACGDLLEXPORT TimedTracing : public Tracing
{
public:
 
  TimedTracing( const std::string& _text,
                std::ostream&      _os = std::cerr )
    : Tracing(_text, _os)
  { timer_.start(); }
 
 
  ~TimedTracing()
  {
    os_ << timer_.stop()*0.001 << " secs, ";
  }
 
private:
 
  StopWatch timer_;
};
 
 
 
//=============================================================================
} // namespace ACG
//=============================================================================
#endif // ACG_TRACING_HH defined
//=============================================================================