245     struct pollfd pfd;  in isEmpty()  local
247     pfd.fd = this->fd_read;  in isEmpty()
248     pfd.events = POLLIN;  in isEmpty()
249     pfd.revents = 0;  in isEmpty()
259     if( -1 == poll(&pfd,1,0) )  in isEmpty()
266     if(pfd.revents & POLLIN)  in isEmpty()
325     struct pollfd pfd[3];  in waitForMsg()  local
334     pfd[0].fd = queue1->getInFd();  in waitForMsg()
335     if(!pfd[0].fd)  in waitForMsg()
341     pfd[0].events = POLLIN;  in waitForMsg()
342     pfd[0].revents = 0;  in waitForMsg()
346         pfd[1].fd = queue2->getInFd();  in waitForMsg()
347         if(!pfd[1].fd)  in waitForMsg()
354         pfd[1].events = POLLIN;  in waitForMsg()
355         pfd[1].revents = 0;  in waitForMsg()
362         pfd[2].fd = queue3->getInFd();  in waitForMsg()
363         if(!pfd[2].fd)  in waitForMsg()
370         pfd[2].events = POLLIN;  in waitForMsg()
371         pfd[2].revents = 0;  in waitForMsg()
376     int ret = poll(pfd, n, timeout);  in waitForMsg()
390     if (pfd[0].revents & POLLIN)  in waitForMsg()
397         if (pfd[1].revents & POLLIN)  in waitForMsg()
405         if (pfd[2].revents & POLLIN)  in waitForMsg()