#include <boost/date_time/posix_time/posix_time.hpp>
using namespace boost::posix_time;
#include <iostream>
using namespace std;

#include <Windows.h>

int main() {

	const size_t iterations = 100000;
	
	HANDLE sem1 = OpenSemaphore(SEMAPHORE_ALL_ACCESS , false, "wsem1");
	HANDLE sem2 = OpenSemaphore(SEMAPHORE_ALL_ACCESS , false, "wsem2");
	
	if(sem1 == NULL || sem2 == NULL) {
	    cerr << "HOUSTON WE HAVE A PROBLEM" << endl;
	}
		
	DWORD waitResult;
	LONG previous;
	ptime start = boost::posix_time::microsec_clock::local_time();
	for(size_t i = 0; i < iterations; ++i) {
		if(!ReleaseSemaphore(sem1, 1, &previous)) {
		    cerr << "Release semaphore A error: " << GetLastError() << endl;
		}
//		else {
//		    cerr << "Previous A: " << previous << endl;
//		}
		
		waitResult = WaitForSingleObject(sem2, INFINITE);
		if(waitResult != WAIT_OBJECT_0) {
		    cerr << "WTF A " << waitResult << " / " << GetLastError() << endl;
		    break;
		}
//		else {
//		    cerr << "GOT A" << endl;
//		}
				
	}

	ptime end = boost::posix_time::microsec_clock::local_time();
	time_duration delta = end - start;
	
	double seconds = double(delta.total_nanoseconds())/1000000000.0;

	cout << "Total elapsed time: " << seconds << endl;;
	cout << "Time per iteration: " << (seconds/double(iterations)) << endl;
	return 0;
}