From e645fc2693acc796304498909786b7b47005b429 Mon Sep 17 00:00:00 2001 From: Martin Lucina Date: Mon, 23 Jan 2012 08:53:35 +0100 Subject: Imported Upstream version 2.1.3 --- src/queue.cpp | 130 ---------------------------------------------------------- 1 file changed, 130 deletions(-) delete mode 100644 src/queue.cpp (limited to 'src/queue.cpp') diff --git a/src/queue.cpp b/src/queue.cpp deleted file mode 100644 index 36fab07..0000000 --- a/src/queue.cpp +++ /dev/null @@ -1,130 +0,0 @@ -/* - Copyright (c) 2007-2010 iMatix Corporation - - This file is part of 0MQ. - - 0MQ is free software; you can redistribute it and/or modify it under - the terms of the Lesser GNU General Public License as published by - the Free Software Foundation; either version 3 of the License, or - (at your option) any later version. - - 0MQ is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - Lesser GNU General Public License for more details. - - You should have received a copy of the Lesser GNU General Public License - along with this program. If not, see . -*/ - -#include - -#include "../include/zmq.h" - -#include "queue.hpp" -#include "socket_base.hpp" -#include "likely.hpp" -#include "err.hpp" - -int zmq::queue (class socket_base_t *insocket_, - class socket_base_t *outsocket_) -{ - zmq_msg_t msg; - int rc = zmq_msg_init (&msg); - zmq_assert (rc == 0); - - int64_t more; - size_t moresz; - - zmq_pollitem_t items [2]; - items [0].socket = insocket_; - items [0].fd = 0; - items [0].events = ZMQ_POLLIN; - items [0].revents = 0; - items [1].socket = outsocket_; - items [1].fd = 0; - items [1].events = ZMQ_POLLIN; - items [1].revents = 0; - - while (true) { - - // Wait while there are either requests or replies to process. - rc = zmq_poll (&items [0], 2, -1); - if (unlikely (rc < 0)) { - if (errno == ETERM) - return -1; - errno_assert (false); - } - - // The algorithm below asumes ratio of request and replies processed - // under full load to be 1:1. Although processing requests replies - // first is tempting it is suspectible to DoS attacks (overloading - // the system with unsolicited replies). - - // Process a request. - if (items [0].revents & ZMQ_POLLIN) { - while (true) { - - rc = insocket_->recv (&msg, 0); - if (unlikely (rc < 0)) { - if (errno == ETERM) - return -1; - errno_assert (false); - } - - moresz = sizeof (more); - rc = insocket_->getsockopt (ZMQ_RCVMORE, &more, &moresz); - if (unlikely (rc < 0)) { - if (errno == ETERM) - return -1; - errno_assert (false); - } - - rc = outsocket_->send (&msg, more ? ZMQ_SNDMORE : 0); - if (unlikely (rc < 0)) { - if (errno == ETERM) - return -1; - errno_assert (false); - } - - if (!more) - break; - } - } - - // Process a reply. - if (items [1].revents & ZMQ_POLLIN) { - while (true) { - - rc = outsocket_->recv (&msg, 0); - if (unlikely (rc < 0)) { - if (errno == ETERM) - return -1; - errno_assert (false); - } - - moresz = sizeof (more); - rc = outsocket_->getsockopt (ZMQ_RCVMORE, &more, &moresz); - if (unlikely (rc < 0)) { - if (errno == ETERM) - return -1; - errno_assert (false); - } - - rc = insocket_->send (&msg, more ? ZMQ_SNDMORE : 0); - if (unlikely (rc < 0)) { - if (errno == ETERM) - return -1; - errno_assert (false); - } - - if (!more) - break; - } - } - - } - - return 0; -} - -- cgit v1.2.3