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

#define CYGWIN_IPCNT_SEMSEM "MultiSemSem_"
#define GLOBAL_CYGWIN_IPCNT_SEMSEM "Global\\MultiSemSem_"

int
main(int argc, char* argv[])
{
	HANDLE handle = 0;
	char* semaphore = CYGWIN_IPCNT_SEMSEM;

	if (argc > 1 && argv[1][0] == '1')
		semaphore = GLOBAL_CYGWIN_IPCNT_SEMSEM;

	handle = OpenSemaphore(SEMAPHORE_ALL_ACCESS, FALSE, semaphore);
	if (handle)
	{
		printf("%ld = OpenSemaphore(%s) succeeded\n", handle, semaphore);
		CloseHandle(handle);
	}
	else
	{
		printf("OpenSemaphore(%s) failed with last error = %ld\n", semaphore,
			GetLastError());
	}

	return 0;
}