Function getsem

src/blkdev.cpp:279–296

}

static bool getsem (int unitnum, bool dowait)
{
	struct blkdevstate *st = &state[unitnum];
	if (st->sema == NULL)
		uae_sem_init (&st->sema, 0, 1);
	bool gotit = false;
	if (dowait) {
		uae_sem_wait (&st->sema);
		gotit = true;
	} else {
		gotit = uae_sem_trywait (&st->sema) == 0;
	}
	if (gotit)
		st->sema_cnt++;
	if (st->sema_cnt > 1)
		write_log (_T("CD: unitsem%d acquire mismatch! cnt=%d\n"), unitnum, st->sema_cnt);
	return gotit;
}
static bool getsem (int unitnum)
{
	return getsem (unitnum, false);