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#ifdef WIN32
#include <windows.h>
#else
#include <sys/time.h>
#endif
#include <iostream>
#include <string>
#include "ismrmrd/ismrmrd.h"
#include "ismrmrd/dataset.h"
class Timer
{
public:
Timer() { Timer("Timer"); }
Timer(const char* name) : name_(name) {
pre();
#ifdef WIN32
QueryPerformanceFrequency(&frequency_);
QueryPerformanceCounter(&start_);
#else
gettimeofday(&start_, NULL);
#endif
}
virtual ~Timer() {
double time_in_us = 0.0;
post();
#ifdef WIN32
QueryPerformanceCounter(&end_);
time_in_us = (end_.QuadPart * (1.0e6/ frequency_.QuadPart)) - start_.QuadPart * (1.0e6 / frequency_.QuadPart);
#else
gettimeofday(&end_, NULL);
time_in_us = ((end_.tv_sec * 1e6) + end_.tv_usec) - ((start_.tv_sec * 1e6) + start_.tv_usec);
#endif
std::cout << name_ << ": " << time_in_us/1000.0 << " ms" << std::endl; std::cout.flush();
}
virtual void pre() { }
virtual void post() { }
protected:
#ifdef WIN32
LARGE_INTEGER frequency_;
LARGE_INTEGER start_;
LARGE_INTEGER end_;
#else
timeval start_;
timeval end_;
#endif
std::string name_;
};
int main(int argc, char** argv)
{
std::cout << "File reader timing test" << std::endl;
if (argc != 2) {
std::cout << "Usage: " << std::endl;
std::cout << " " << argv[0] << " <FILENAME>" << std::endl;
}
std::cout << "Opening file " << argv[1] << std::endl;
{
Timer t("READ TIMER");
ISMRMRD::Dataset d(argv[1],"dataset", false);
uint32_t number_of_acquisitions = d.getNumberOfAcquisitions();
ISMRMRD::Acquisition acq;
for (uint32_t i = 0; i < number_of_acquisitions; i++) {
d.readAcquisition(i, acq);
//We'll just throw the data away here.
}
}
return 0;
}
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