Merge commit 'e988fee1679536137b87d10e939eff5c1f27c8ab' as 'libs/libzmq'

libs/libzmq/src/dealer.cpp

@@ -0,0 +1,145 @@
+/*
+    Copyright (c) 2007-2016 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq 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 "precompiled.hpp"
+#include "macros.hpp"
+#include "dealer.hpp"
+#include "err.hpp"
+#include "msg.hpp"
+
+zmq::dealer_t::dealer_t (class ctx_t *parent_, uint32_t tid_, int sid_) :
+    socket_base_t (parent_, tid_, sid_), _probe_router (false)
+{
+    options.type = ZMQ_DEALER;
+    options.can_send_hello_msg = true;
+    options.can_recv_hiccup_msg = true;
+}
+
+zmq::dealer_t::~dealer_t ()
+{
+}
+
+void zmq::dealer_t::xattach_pipe (pipe_t *pipe_,
+                                  bool subscribe_to_all_,
+                                  bool locally_initiated_)
+{
+    LIBZMQ_UNUSED (subscribe_to_all_);
+    LIBZMQ_UNUSED (locally_initiated_);
+
+    zmq_assert (pipe_);
+
+    if (_probe_router) {
+        msg_t probe_msg;
+        int rc = probe_msg.init ();
+        errno_assert (rc == 0);
+
+        rc = pipe_->write (&probe_msg);
+        // zmq_assert (rc) is not applicable here, since it is not a bug.
+        LIBZMQ_UNUSED (rc);
+
+        pipe_->flush ();
+
+        rc = probe_msg.close ();
+        errno_assert (rc == 0);
+    }
+
+    _fq.attach (pipe_);
+    _lb.attach (pipe_);
+}
+
+int zmq::dealer_t::xsetsockopt (int option_,
+                                const void *optval_,
+                                size_t optvallen_)
+{
+    const bool is_int = (optvallen_ == sizeof (int));
+    int value = 0;
+    if (is_int)
+        memcpy (&value, optval_, sizeof (int));
+
+    switch (option_) {
+        case ZMQ_PROBE_ROUTER:
+            if (is_int && value >= 0) {
+                _probe_router = (value != 0);
+                return 0;
+            }
+            break;
+
+        default:
+            break;
+    }
+
+    errno = EINVAL;
+    return -1;
+}
+
+int zmq::dealer_t::xsend (msg_t *msg_)
+{
+    return sendpipe (msg_, NULL);
+}
+
+int zmq::dealer_t::xrecv (msg_t *msg_)
+{
+    return recvpipe (msg_, NULL);
+}
+
+bool zmq::dealer_t::xhas_in ()
+{
+    return _fq.has_in ();
+}
+
+bool zmq::dealer_t::xhas_out ()
+{
+    return _lb.has_out ();
+}
+
+void zmq::dealer_t::xread_activated (pipe_t *pipe_)
+{
+    _fq.activated (pipe_);
+}
+
+void zmq::dealer_t::xwrite_activated (pipe_t *pipe_)
+{
+    _lb.activated (pipe_);
+}
+
+void zmq::dealer_t::xpipe_terminated (pipe_t *pipe_)
+{
+    _fq.pipe_terminated (pipe_);
+    _lb.pipe_terminated (pipe_);
+}
+
+int zmq::dealer_t::sendpipe (msg_t *msg_, pipe_t **pipe_)
+{
+    return _lb.sendpipe (msg_, pipe_);
+}
+
+int zmq::dealer_t::recvpipe (msg_t *msg_, pipe_t **pipe_)
+{
+    return _fq.recvpipe (msg_, pipe_);
+}