#include <windows.h>
#include <process.h>
#include <stdio.h>
#include <stdlib.h>

struct MS {
	int UL;
	int IZ;
	char M[5];
};

#define MS_VEL sizeof(struct MS)

HANDLE pun, prazan, pisi;
HANDLE SegZajMem;
struct MS *p;

void zauzmi(){
	pun = CreateSemaphore(NULL, 5, 5, "PUN");
	prazan = CreateSemaphore (NULL, 0, 5, "PRAZAN");
	pisi = CreateSemaphore (NULL, 1, 1, "PISI");

	if (pun == NULL || prazan == NULL || pisi == NULL) {
		printf("CreateSemaphore error: %d\n", GetLastError());
	}

	SegZajMem = CreateFileMapping(INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
			0, MS_VEL, "medjuspremnik");

	if (SegZajMem == NULL) { 
		printf("Could not create file mapping object (%d).\n", GetLastError());
		return;
	}
	p = MapViewOfFile(SegZajMem, FILE_MAP_ALL_ACCESS, 0, 0, MS_VEL);
	if (p == NULL) { 
		printf("Could not map view of file (%d).\n", GetLastError()); 
		return;
	}
}

void oslobodi(){
	CloseHandle(pun);
	CloseHandle(prazan);
	CloseHandle(pisi);

	UnmapViewOfFile(p);
	CloseHandle(SegZajMem);
}