1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
/*
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 "stream_listener_base.hpp"
#include "session_base.hpp"
#include "socket_base.hpp"
#include "zmtp_engine.hpp"
#include "raw_engine.hpp"
#ifndef ZMQ_HAVE_WINDOWS
#include <unistd.h>
#else
#include <winsock2.h>
#endif
zmq::stream_listener_base_t::stream_listener_base_t (
zmq::io_thread_t *io_thread_,
zmq::socket_base_t *socket_,
const zmq::options_t &options_) :
own_t (io_thread_, options_),
io_object_t (io_thread_),
_s (retired_fd),
_handle (static_cast<handle_t> (NULL)),
_socket (socket_)
{
}
zmq::stream_listener_base_t::~stream_listener_base_t ()
{
zmq_assert (_s == retired_fd);
zmq_assert (!_handle);
}
int zmq::stream_listener_base_t::get_local_address (std::string &addr_) const
{
addr_ = get_socket_name (_s, socket_end_local);
return addr_.empty () ? -1 : 0;
}
void zmq::stream_listener_base_t::process_plug ()
{
// Start polling for incoming connections.
_handle = add_fd (_s);
set_pollin (_handle);
}
void zmq::stream_listener_base_t::process_term (int linger_)
{
rm_fd (_handle);
_handle = static_cast<handle_t> (NULL);
close ();
own_t::process_term (linger_);
}
int zmq::stream_listener_base_t::close ()
{
// TODO this is identical to stream_connector_base_t::close
zmq_assert (_s != retired_fd);
#ifdef ZMQ_HAVE_WINDOWS
const int rc = closesocket (_s);
wsa_assert (rc != SOCKET_ERROR);
#else
const int rc = ::close (_s);
errno_assert (rc == 0);
#endif
_socket->event_closed (make_unconnected_bind_endpoint_pair (_endpoint), _s);
_s = retired_fd;
return 0;
}
void zmq::stream_listener_base_t::create_engine (fd_t fd_)
{
const endpoint_uri_pair_t endpoint_pair (
get_socket_name (fd_, socket_end_local),
get_socket_name (fd_, socket_end_remote), endpoint_type_bind);
i_engine *engine;
if (options.raw_socket)
engine = new (std::nothrow) raw_engine_t (fd_, options, endpoint_pair);
else
engine = new (std::nothrow) zmtp_engine_t (fd_, options, endpoint_pair);
alloc_assert (engine);
// Choose I/O thread to run connecter in. Given that we are already
// running in an I/O thread, there must be at least one available.
io_thread_t *io_thread = choose_io_thread (options.affinity);
zmq_assert (io_thread);
// Create and launch a session object.
session_base_t *session =
session_base_t::create (io_thread, false, _socket, options, NULL);
errno_assert (session);
session->inc_seqnum ();
launch_child (session);
send_attach (session, engine, false);
_socket->event_accepted (endpoint_pair, fd_);
}