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
/*
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 "p2p.hpp"
#include "err.hpp"
#include "pipe.hpp"
zmq::p2p_t::p2p_t (class app_thread_t *parent_) :
socket_base_t (parent_),
inpipe (NULL),
outpipe (NULL),
alive (true)
{
options.requires_in = true;
options.requires_out = true;
}
zmq::p2p_t::~p2p_t ()
{
if (inpipe)
inpipe->term ();
if (outpipe)
outpipe->term ();
}
void zmq::p2p_t::xattach_pipes (class reader_t *inpipe_,
class writer_t *outpipe_, const blob_t &peer_identity_)
{
zmq_assert (!inpipe && !outpipe);
inpipe = inpipe_;
outpipe = outpipe_;
outpipe_alive = true;
}
void zmq::p2p_t::xdetach_inpipe (class reader_t *pipe_)
{
zmq_assert (pipe_ == inpipe);
inpipe = NULL;
}
void zmq::p2p_t::xdetach_outpipe (class writer_t *pipe_)
{
zmq_assert (pipe_ == outpipe);
outpipe = NULL;
}
void zmq::p2p_t::xkill (class reader_t *pipe_)
{
zmq_assert (alive);
alive = false;
}
void zmq::p2p_t::xrevive (class reader_t *pipe_)
{
zmq_assert (!alive);
alive = true;
}
void zmq::p2p_t::xrevive (class writer_t *pipe_)
{
zmq_assert (!outpipe_alive);
outpipe_alive = true;
}
int zmq::p2p_t::xsetsockopt (int option_, const void *optval_,
size_t optvallen_)
{
errno = EINVAL;
return -1;
}
int zmq::p2p_t::xsend (zmq_msg_t *msg_, int flags_)
{
if (outpipe == NULL || !outpipe_alive) {
errno = EAGAIN;
return -1;
}
if (!outpipe->write (msg_)) {
outpipe_alive = false;
errno = EAGAIN;
return -1;
}
outpipe->flush ();
// Detach the original message from the data buffer.
int rc = zmq_msg_init (msg_);
zmq_assert (rc == 0);
return 0;
}
int zmq::p2p_t::xrecv (zmq_msg_t *msg_, int flags_)
{
// Deallocate old content of the message.
zmq_msg_close (msg_);
if (!alive || !inpipe || !inpipe->read (msg_)) {
errno = EAGAIN;
return -1;
}
return 0;
}
bool zmq::p2p_t::xhas_in ()
{
if (alive && inpipe && inpipe->check_read ())
return true;
return false;
}
bool zmq::p2p_t::xhas_out ()
{
if (outpipe == NULL || !outpipe_alive)
return false;
outpipe_alive = outpipe->check_write ();
return outpipe_alive;
}