www.pudn.com > simpleraytracer_v1_0.zip > clock.cpp

/*===================================================================== 
Code By Nicholas Chapman. 
 
  nickamy@paradise.net.nz 
 
You may use this code for any non-commercial project, 
as long as you do not remove this description. 
 
You may *not* use this code for any commercial project. 
=====================================================================*/ 
#include "clock.h" 
									 
#include  
#include  
//#include  
 
//returns current time in seconds 
double getCurTimeRealSec() 
{ 
	static LARGE_INTEGER li_net; 
	memset(&li_net, 0, sizeof(li_net)); 
	BOOL b = QueryPerformanceCounter( &li_net );  
	assert(b); 
 
 
	static LARGE_INTEGER freq; 
	memset(&freq, 0, sizeof(freq)); 
	b = QueryPerformanceFrequency(&freq); 
	assert(b); 
 
 
  return (double)(li_net.QuadPart) / (double)(freq.QuadPart); 
} 
 
 
 
 
 
 
const std::string getAsciiTime() 
{ 
	time_t currenttime; 
 
	time(¤ttime);                  
	 
	struct tm *newtime = localtime(¤ttime); 
	//NOTE: check for mem leak here 
                                    
	std::string s = asctime(newtime); 
 
	if(!s.empty() && s[(int)s.size() - 1] == '\n') 
		s = s.substr(0, (int)s.size() - 1); 
 
	return s; 
} 
 
 
time_t getSecsSince1970() 
{ 
	return time(NULL);                  
} 
 
bool leftTimeEarlier(const std::string& time_a, const std::string& time_b) 
{ 
 
 
	return true; 
}