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
|
# ZMQ::FFI #
## version agnostic Perl bindings for ØMQ using ffi ##
ZMQ::FFI exposes a high level, transparent, OO interface to zeromq independent of the underlying libzmq version. Where semantics differ, it will dispatch to the appropriate backend for you. As it uses ffi, there is no dependency on XS or compilation.
ZMQ::FFI is implemented using [FFI::Platypus](https://github.com/plicease/FFI-Platypus).
### EXAMPLES ###
#### send/recv ####
```perl
use v5.10;
use ZMQ::FFI qw(ZMQ_REQ ZMQ_REP);
my $endpoint = "ipc://zmq-ffi-$$";
my $ctx = ZMQ::FFI->new();
my $s1 = $ctx->socket(ZMQ_REQ);
$s1->connect($endpoint);
my $s2 = $ctx->socket(ZMQ_REP);
$s2->bind($endpoint);
$s1->send('ohhai');
say $s2->recv();
# ohhai
```
#### pub/sub ####
```perl
use v5.10;
use ZMQ::FFI qw(ZMQ_PUB ZMQ_SUB);
use Time::HiRes q(usleep);
my $endpoint = "ipc://zmq-ffi-$$";
my $ctx = ZMQ::FFI->new();
my $s = $ctx->socket(ZMQ_SUB);
my $p = $ctx->socket(ZMQ_PUB);
$s->connect($endpoint);
$p->bind($endpoint);
# all topics
{
$s->subscribe('');
until ($s->has_pollin) {
# compensate for slow subscriber
usleep 100_000;
$p->send('ohhai');
}
say $s->recv();
# ohhai
$s->unsubscribe('');
}
# specific topics
{
$s->subscribe('topic1');
$s->subscribe('topic2');
until ($s->has_pollin) {
usleep 100_000;
$p->send('topic1 ohhai');
$p->send('topic2 ohhai');
}
while ($s->has_pollin) {
say join ' ', $s->recv();
# topic1 ohhai
# topic2 ohhai
}
}
```
#### multipart ####
```perl
use v5.10;
use ZMQ::FFI qw(ZMQ_DEALER ZMQ_ROUTER);
my $endpoint = "ipc://zmq-ffi-$$";
my $ctx = ZMQ::FFI->new();
my $d = $ctx->socket(ZMQ_DEALER);
$d->set_identity('dealer');
my $r = $ctx->socket(ZMQ_ROUTER);
$d->connect($endpoint);
$r->bind($endpoint);
$d->send_multipart([qw(ABC DEF GHI)]);
say join ' ', $r->recv_multipart;
# dealer ABC DEF GHI
```
#### nonblocking ####
```perl
use v5.10;
use ZMQ::FFI qw(ZMQ_PUSH ZMQ_PULL);
use AnyEvent;
use EV;
my $endpoint = "ipc://zmq-ffi-$$";
my $ctx = ZMQ::FFI->new();
my @messages = qw(foo bar baz);
my $pull = $ctx->socket(ZMQ_PULL);
$pull->bind($endpoint);
my $fd = $pull->get_fd();
my $recv = 0;
my $w = AE::io $fd, 0, sub {
while ( $pull->has_pollin ) {
say $pull->recv();
# foo, bar, baz
$recv++;
if ($recv == 3) {
EV::break();
}
}
};
my $push = $ctx->socket(ZMQ_PUSH);
$push->connect($endpoint);
my $sent = 0;
my $t;
$t = AE::timer 0, .1, sub {
$push->send($messages[$sent]);
$sent++;
if ($sent == 3) {
undef $t;
}
};
EV::run();
```
#### specifying versions ####
```perl
use ZMQ::FFI;
# 2.x context
my $ctx = ZMQ::FFI->new( soname => 'libzmq.so.1' );
my ($major, $minor, $patch) = $ctx->version;
# 3.x context
my $ctx = ZMQ::FFI->new( soname => 'libzmq.so.3' );
my ($major, $minor, $patch) = $ctx->version;
```
### INSTALL ###
cpanm -v ZMQ::FFI
### DOCUMENTATION ###
https://metacpan.org/module/ZMQ::FFI
|
