diff options
Diffstat (limited to 'src/proxy.cpp')
| -rw-r--r-- | src/proxy.cpp | 149 |
1 files changed, 0 insertions, 149 deletions
diff --git a/src/proxy.cpp b/src/proxy.cpp deleted file mode 100644 index 1a172c1..0000000 --- a/src/proxy.cpp +++ /dev/null @@ -1,149 +0,0 @@ -/* - Copyright (c) 2007-2013 Contributors as noted in the AUTHORS file - - This file is part of 0MQ. - - 0MQ is free software; you can redistribute it and/or modify it under - the terms of the GNU Lesser 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 - GNU Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with this program. If not, see <http://www.gnu.org/licenses/>. -*/ - -#include <stddef.h> -#include "platform.hpp" -#include "proxy.hpp" -#include "likely.hpp" - -#if defined ZMQ_FORCE_SELECT -#define ZMQ_POLL_BASED_ON_SELECT -#elif defined ZMQ_FORCE_POLL -#define ZMQ_POLL_BASED_ON_POLL -#elif defined ZMQ_HAVE_LINUX || defined ZMQ_HAVE_FREEBSD ||\ - defined ZMQ_HAVE_OPENBSD || defined ZMQ_HAVE_SOLARIS ||\ - defined ZMQ_HAVE_OSX || defined ZMQ_HAVE_QNXNTO ||\ - defined ZMQ_HAVE_HPUX || defined ZMQ_HAVE_AIX ||\ - defined ZMQ_HAVE_NETBSD -#define ZMQ_POLL_BASED_ON_POLL -#elif defined ZMQ_HAVE_WINDOWS || defined ZMQ_HAVE_OPENVMS ||\ - defined ZMQ_HAVE_CYGWIN -#define ZMQ_POLL_BASED_ON_SELECT -#endif - -// On AIX platform, poll.h has to be included first to get consistent -// definition of pollfd structure (AIX uses 'reqevents' and 'retnevents' -// instead of 'events' and 'revents' and defines macros to map from POSIX-y -// names to AIX-specific names). -#if defined ZMQ_POLL_BASED_ON_POLL -#include <poll.h> -#endif - -// These headers end up pulling in zmq.h somewhere in their include -// dependency chain -#include "socket_base.hpp" -#include "err.hpp" - -// zmq.h must be included *after* poll.h for AIX to build properly -#include "../include/zmq.h" - - -int zmq::proxy ( - class socket_base_t *frontend_, - class socket_base_t *backend_, - class socket_base_t *capture_) -{ - msg_t msg; - int rc = msg.init (); - if (rc != 0) - return -1; - - // The algorithm below assumes ratio of requests and replies processed - // under full load to be 1:1. - - int more; - size_t moresz; - zmq_pollitem_t items [] = { - { frontend_, 0, ZMQ_POLLIN, 0 }, - { backend_, 0, ZMQ_POLLIN, 0 } - }; - while (true) { - // Wait while there are either requests or replies to process. - rc = zmq_poll (&items [0], 2, -1); - if (unlikely (rc < 0)) - return -1; - - // Process a request - if (items [0].revents & ZMQ_POLLIN) { - while (true) { - rc = frontend_->recv (&msg, 0); - if (unlikely (rc < 0)) - return -1; - - moresz = sizeof more; - rc = frontend_->getsockopt (ZMQ_RCVMORE, &more, &moresz); - if (unlikely (rc < 0)) - return -1; - - // Copy message to capture socket if any - if (capture_) { - msg_t ctrl; - rc = ctrl.init (); - if (unlikely (rc < 0)) - return -1; - rc = ctrl.copy (msg); - if (unlikely (rc < 0)) - return -1; - rc = capture_->send (&ctrl, more? ZMQ_SNDMORE: 0); - if (unlikely (rc < 0)) - return -1; - } - rc = backend_->send (&msg, more? ZMQ_SNDMORE: 0); - if (unlikely (rc < 0)) - return -1; - if (more == 0) - break; - } - } - // Process a reply - if (items [1].revents & ZMQ_POLLIN) { - while (true) { - rc = backend_->recv (&msg, 0); - if (unlikely (rc < 0)) - return -1; - - moresz = sizeof more; - rc = backend_->getsockopt (ZMQ_RCVMORE, &more, &moresz); - if (unlikely (rc < 0)) - return -1; - - // Copy message to capture socket if any - if (capture_) { - msg_t ctrl; - rc = ctrl.init (); - if (unlikely (rc < 0)) - return -1; - rc = ctrl.copy (msg); - if (unlikely (rc < 0)) - return -1; - rc = capture_->send (&ctrl, more? ZMQ_SNDMORE: 0); - if (unlikely (rc < 0)) - return -1; - } - rc = frontend_->send (&msg, more? ZMQ_SNDMORE: 0); - if (unlikely (rc < 0)) - return -1; - if (more == 0) - break; - } - } - - } - return 0; -} |