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diff --git a/src/rep.cpp b/src/rep.cpp
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-/*
- 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 "rep.hpp"
-#include "err.hpp"
-#include "msg.hpp"
-
-zmq::rep_t::rep_t (class ctx_t *parent_, uint32_t tid_, int sid_) :
- router_t (parent_, tid_, sid_),
- sending_reply (false),
- request_begins (true)
-{
- options.type = ZMQ_REP;
-}
-
-zmq::rep_t::~rep_t ()
-{
-}
-
-int zmq::rep_t::xsend (msg_t *msg_)
-{
- // If we are in the middle of receiving a request, we cannot send reply.
- if (!sending_reply) {
- errno = EFSM;
- return -1;
- }
-
- bool more = msg_->flags () & msg_t::more ? true : false;
-
- // Push message to the reply pipe.
- int rc = router_t::xsend (msg_);
- if (rc != 0)
- return rc;
-
- // If the reply is complete flip the FSM back to request receiving state.
- if (!more)
- sending_reply = false;
-
- return 0;
-}
-
-int zmq::rep_t::xrecv (msg_t *msg_)
-{
- // If we are in middle of sending a reply, we cannot receive next request.
- if (sending_reply) {
- errno = EFSM;
- return -1;
- }
-
- // First thing to do when receiving a request is to copy all the labels
- // to the reply pipe.
- if (request_begins) {
- while (true) {
- int rc = router_t::xrecv (msg_);
- if (rc != 0)
- return rc;
-
- if ((msg_->flags () & msg_t::more)) {
- // Empty message part delimits the traceback stack.
- bool bottom = (msg_->size () == 0);
-
- // Push it to the reply pipe.
- rc = router_t::xsend (msg_);
- errno_assert (rc == 0);
-
- if (bottom)
- break;
- }
- else {
- // If the traceback stack is malformed, discard anything
- // already sent to pipe (we're at end of invalid message).
- rc = router_t::rollback ();
- errno_assert (rc == 0);
- }
- }
- request_begins = false;
- }
-
- // Get next message part to return to the user.
- int rc = router_t::xrecv (msg_);
- if (rc != 0)
- return rc;
-
- // If whole request is read, flip the FSM to reply-sending state.
- if (!(msg_->flags () & msg_t::more)) {
- sending_reply = true;
- request_begins = true;
- }
-
- return 0;
-}
-
-bool zmq::rep_t::xhas_in ()
-{
- if (sending_reply)
- return false;
-
- return router_t::xhas_in ();
-}
-
-bool zmq::rep_t::xhas_out ()
-{
- if (!sending_reply)
- return false;
-
- return router_t::xhas_out ();
-}