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
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
|
/*
Copyright (c) 2007-2009 FastMQ Inc.
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 <algorithm>
#include "../include/zmq.h"
#include "socket_base.hpp"
#include "app_thread.hpp"
#include "err.hpp"
#include "zmq_listener.hpp"
#include "zmq_connecter.hpp"
#include "io_thread.hpp"
#include "session.hpp"
#include "config.hpp"
#include "owned.hpp"
zmq::socket_base_t::socket_base_t (app_thread_t *parent_) :
object_t (parent_),
pending_term_acks (0),
app_thread (parent_)
{
}
zmq::socket_base_t::~socket_base_t ()
{
while (true) {
// On third pass of the loop there should be no more I/O objects
// because all connecters and listerners were destroyed during
// the first pass and all engines delivered by delayed 'own' commands
// are destroyed during the second pass.
if (io_objects.empty () && !pending_term_acks)
break;
// Send termination request to all associated I/O objects.
for (io_objects_t::iterator it = io_objects.begin ();
it != io_objects.end (); it++)
send_term (*it);
// Move the objects to the list of pending term acks.
pending_term_acks += io_objects.size ();
io_objects.clear ();
// Process commands till we get all the termination acknowledgements.
while (pending_term_acks)
app_thread->process_commands (true);
}
// Check whether there are no session leaks.
zmq_assert (sessions.empty ());
}
int zmq::socket_base_t::setsockopt (int option_, void *optval_,
size_t optvallen_)
{
switch (option_) {
case ZMQ_HWM:
if (optvallen_ != sizeof (int64_t)) {
errno = EINVAL;
return -1;
}
options.hwm = *((int64_t*) optval_);
return 0;
case ZMQ_LWM:
if (optvallen_ != sizeof (int64_t)) {
errno = EINVAL;
return -1;
}
options.lwm = *((int64_t*) optval_);
return 0;
case ZMQ_SWAP:
if (optvallen_ != sizeof (int64_t)) {
errno = EINVAL;
return -1;
}
options.swap = *((int64_t*) optval_);
return 0;
case ZMQ_MASK:
if (optvallen_ != sizeof (int64_t)) {
errno = EINVAL;
return -1;
}
options.mask = (uint64_t) *((int64_t*) optval_);
return 0;
case ZMQ_AFFINITY:
if (optvallen_ != sizeof (int64_t)) {
errno = EINVAL;
return -1;
}
options.affinity = (uint64_t) *((int64_t*) optval_);
return 0;
case ZMQ_IDENTITY:
if (optvallen_ != sizeof (const char*)) {
errno = EINVAL;
return -1;
}
options.identity = (const char*) optval_;
return 0;
default:
errno = EINVAL;
return -1;
}
}
int zmq::socket_base_t::bind (const char *addr_)
{
zmq_listener_t *listener = new zmq_listener_t (
choose_io_thread (options.affinity), this, options);
int rc = listener->set_address (addr_);
if (rc != 0)
return -1;
send_plug (listener);
send_own (this, listener);
return 0;
}
int zmq::socket_base_t::connect (const char *addr_)
{
zmq_connecter_t *connecter = new zmq_connecter_t (
choose_io_thread (options.affinity), this, options);
int rc = connecter->set_address (addr_);
if (rc != 0)
return -1;
send_plug (connecter);
send_own (this, connecter);
return 0;
}
int zmq::socket_base_t::send (struct zmq_msg *msg_, int flags_)
{
zmq_assert (false);
}
int zmq::socket_base_t::flush ()
{
zmq_assert (false);
}
int zmq::socket_base_t::recv (struct zmq_msg *msg_, int flags_)
{
zmq_assert (false);
}
int zmq::socket_base_t::close ()
{
app_thread->remove_socket (this);
delete this;
return 0;
}
void zmq::socket_base_t::register_session (const char *name_,
session_t *session_)
{
sessions_sync.lock ();
bool inserted = sessions.insert (std::make_pair (name_, session_)).second;
zmq_assert (inserted);
sessions_sync.unlock ();
}
void zmq::socket_base_t::unregister_session (const char *name_)
{
sessions_sync.lock ();
sessions_t::iterator it = sessions.find (name_);
zmq_assert (it != sessions.end ());
sessions.erase (it);
sessions_sync.unlock ();
}
zmq::session_t *zmq::socket_base_t::get_session (const char *name_)
{
sessions_sync.lock ();
sessions_t::iterator it = sessions.find (name_);
session_t *session = NULL;
if (it != sessions.end ()) {
session = it->second;
session->inc_seqnum ();
}
sessions_sync.unlock ();
return session;
}
void zmq::socket_base_t::process_own (owned_t *object_)
{
io_objects.insert (object_);
}
void zmq::socket_base_t::process_term_req (owned_t *object_)
{
// If I/O object is well and alive ask it to terminate.
io_objects_t::iterator it = std::find (io_objects.begin (),
io_objects.end (), object_);
// If not found, we assume that termination request was already sent to
// the object so we can sagely ignore the request.
if (it == io_objects.end ())
return;
pending_term_acks++;
io_objects.erase (it);
send_term (object_);
}
void zmq::socket_base_t::process_term_ack ()
{
zmq_assert (pending_term_acks);
pending_term_acks--;
}
|
