summaryrefslogtreecommitdiff
path: root/src/queue.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/queue.cpp')
-rw-r--r--src/queue.cpp130
1 files changed, 0 insertions, 130 deletions
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 <http://www.gnu.org/licenses/>.
-*/
-
-#include <stddef.h>
-
-#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;
-}
-