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-rw-r--r--src/xreq.cpp118
1 files changed, 118 insertions, 0 deletions
diff --git a/src/xreq.cpp b/src/xreq.cpp
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+++ b/src/xreq.cpp
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+/*
+ 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 "../include/zmq.h"
+
+#include "xreq.hpp"
+#include "err.hpp"
+
+zmq::xreq_t::xreq_t (class app_thread_t *parent_) :
+ socket_base_t (parent_),
+ dropping (false)
+{
+ options.requires_in = true;
+ options.requires_out = true;
+}
+
+zmq::xreq_t::~xreq_t ()
+{
+}
+
+void zmq::xreq_t::xattach_pipes (class reader_t *inpipe_,
+ class writer_t *outpipe_, const blob_t &peer_identity_)
+{
+ zmq_assert (inpipe_ && outpipe_);
+ fq.attach (inpipe_);
+ lb.attach (outpipe_);
+}
+
+void zmq::xreq_t::xdetach_inpipe (class reader_t *pipe_)
+{
+ zmq_assert (pipe_);
+ fq.detach (pipe_);
+}
+
+void zmq::xreq_t::xdetach_outpipe (class writer_t *pipe_)
+{
+ zmq_assert (pipe_);
+ lb.detach (pipe_);
+}
+
+void zmq::xreq_t::xkill (class reader_t *pipe_)
+{
+ fq.kill (pipe_);
+}
+
+void zmq::xreq_t::xrevive (class reader_t *pipe_)
+{
+ fq.revive (pipe_);
+}
+
+void zmq::xreq_t::xrevive (class writer_t *pipe_)
+{
+ lb.revive (pipe_);
+}
+
+int zmq::xreq_t::xsetsockopt (int option_, const void *optval_,
+ size_t optvallen_)
+{
+ errno = EINVAL;
+ return -1;
+}
+
+int zmq::xreq_t::xsend (zmq_msg_t *msg_, int flags_)
+{
+ while (true) {
+
+ // If we are ignoring the current message, just drop it and return.
+ if (dropping) {
+ if (!(msg_->flags & ZMQ_MSG_MORE))
+ dropping = false;
+ int rc = zmq_msg_close (msg_);
+ zmq_assert (rc == 0);
+ rc = zmq_msg_init (msg_);
+ zmq_assert (rc == 0);
+ return 0;
+ }
+
+ int rc = lb.send (msg_, flags_);
+ if (rc != 0 && errno == EAGAIN)
+ dropping = true;
+ else
+ return rc;
+ }
+}
+
+int zmq::xreq_t::xrecv (zmq_msg_t *msg_, int flags_)
+{
+ return fq.recv (msg_, flags_);
+}
+
+bool zmq::xreq_t::xhas_in ()
+{
+ return fq.has_in ();
+}
+
+bool zmq::xreq_t::xhas_out ()
+{
+ // Socket is always ready for writing. When the queue is full, message
+ // will be silently dropped.
+ return true;
+}
+