1/*
2 Copyright (c) 2007-2016 Contributors as noted in the AUTHORS file
3
4 This file is part of libzmq, the ZeroMQ core engine in C++.
5
6 libzmq is free software; you can redistribute it and/or modify it under
7 the terms of the GNU Lesser General Public License (LGPL) as published
8 by the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 As a special exception, the Contributors give you permission to link
12 this library with independent modules to produce an executable,
13 regardless of the license terms of these independent modules, and to
14 copy and distribute the resulting executable under terms of your choice,
15 provided that you also meet, for each linked independent module, the
16 terms and conditions of the license of that module. An independent
17 module is a module which is not derived from or based on this library.
18 If you modify this library, you must extend this exception to your
19 version of the library.
20
21 libzmq is distributed in the hope that it will be useful, but WITHOUT
22 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
23 FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
24 License for more details.
25
26 You should have received a copy of the GNU Lesser General Public License
27 along with this program. If not, see <http://www.gnu.org/licenses/>.
28*/
29
30#include "precompiled.hpp"
31#include "macros.hpp"
32#include "dealer.hpp"
33#include "err.hpp"
34#include "msg.hpp"
35
36zmq::dealer_t::dealer_t (class ctx_t *parent_, uint32_t tid_, int sid_) :
37 socket_base_t (parent_, tid_, sid_),
38 _probe_router (false)
39{
40 options.type = ZMQ_DEALER;
41}
42
43zmq::dealer_t::~dealer_t ()
44{
45}
46
47void zmq::dealer_t::xattach_pipe (pipe_t *pipe_,
48 bool subscribe_to_all_,
49 bool locally_initiated_)
50{
51 LIBZMQ_UNUSED (subscribe_to_all_);
52 LIBZMQ_UNUSED (locally_initiated_);
53
54 zmq_assert (pipe_);
55
56 if (_probe_router) {
57 msg_t probe_msg;
58 int rc = probe_msg.init ();
59 errno_assert (rc == 0);
60
61 rc = pipe_->write (&probe_msg);
62 // zmq_assert (rc) is not applicable here, since it is not a bug.
63 LIBZMQ_UNUSED (rc);
64
65 pipe_->flush ();
66
67 rc = probe_msg.close ();
68 errno_assert (rc == 0);
69 }
70
71 _fq.attach (pipe_);
72 _lb.attach (pipe_);
73}
74
75int zmq::dealer_t::xsetsockopt (int option_,
76 const void *optval_,
77 size_t optvallen_)
78{
79 bool is_int = (optvallen_ == sizeof (int));
80 int value = 0;
81 if (is_int)
82 memcpy (&value, optval_, sizeof (int));
83
84 switch (option_) {
85 case ZMQ_PROBE_ROUTER:
86 if (is_int && value >= 0) {
87 _probe_router = (value != 0);
88 return 0;
89 }
90 break;
91
92 default:
93 break;
94 }
95
96 errno = EINVAL;
97 return -1;
98}
99
100int zmq::dealer_t::xsend (msg_t *msg_)
101{
102 return sendpipe (msg_, NULL);
103}
104
105int zmq::dealer_t::xrecv (msg_t *msg_)
106{
107 return recvpipe (msg_, NULL);
108}
109
110bool zmq::dealer_t::xhas_in ()
111{
112 return _fq.has_in ();
113}
114
115bool zmq::dealer_t::xhas_out ()
116{
117 return _lb.has_out ();
118}
119
120void zmq::dealer_t::xread_activated (pipe_t *pipe_)
121{
122 _fq.activated (pipe_);
123}
124
125void zmq::dealer_t::xwrite_activated (pipe_t *pipe_)
126{
127 _lb.activated (pipe_);
128}
129
130void zmq::dealer_t::xpipe_terminated (pipe_t *pipe_)
131{
132 _fq.pipe_terminated (pipe_);
133 _lb.pipe_terminated (pipe_);
134}
135
136int zmq::dealer_t::sendpipe (msg_t *msg_, pipe_t **pipe_)
137{
138 return _lb.sendpipe (msg_, pipe_);
139}
140
141int zmq::dealer_t::recvpipe (msg_t *msg_, pipe_t **pipe_)
142{
143 return _fq.recvpipe (msg_, pipe_);
144}
145