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Distributed programming (view source)

Revision as of 16:12, 7 July 2021

10,940 bytes added ,  2 years ago
→‎{{header|Phix}}
(Updated to work with Nim 1.4: added types to parameters.)
Line 1,193:
send_data('some_host', { a=>100, b=>[1 .. 10] });
}</lang>
 
=={{header|Phix}}==
From/using [http://phix.x10.mx/pmwiki/pmwiki.php?n=Main.Libzmq the ZeroMQ wrapper from PCAN], a suitable simple publish/subscriber pair.
There is also a server/client/broker example.
Obviously you can trivially serialize() and deserialize() any Phix data to and from a string.
<!--<lang Phix>(phixonline)-->
<span style="color: #7060A8;">puts</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"durapub:\n"</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">include</span> <span style="color: #000000;">zmq</span><span style="color: #0000FF;">/</span><span style="color: #000000;">zmq</span><span style="color: #0000FF;">.</span><span style="color: #000000;">e</span>
<span style="color: #004080;">atom</span> <span style="color: #000000;">context</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">zmq_init</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">zmq_assert</span><span style="color: #0000FF;">(</span><span style="color: #000000;">context</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"zmq_init"</span><span style="color: #0000FF;">)</span>
<span style="color: #000080;font-style:italic;">--// subscriber tells us when it's ready here</span>
<span style="color: #004080;">atom</span> <span style="color: #000000;">sync</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">zmq_socket</span><span style="color: #0000FF;">(</span><span style="color: #000000;">context</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">ZMQ_PULL</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">zmq_bind</span><span style="color: #0000FF;">(</span><span style="color: #000000;">sync</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"tcp://*:5564"</span><span style="color: #0000FF;">)</span>
<span style="color: #000080;font-style:italic;">--// send update via this socket</span>
<span style="color: #004080;">atom</span> <span style="color: #000000;">publisher</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">zmq_socket</span><span style="color: #0000FF;">(</span><span style="color: #000000;">context</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">ZMQ_PUB</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">zmq_bind</span><span style="color: #0000FF;">(</span><span style="color: #000000;">publisher</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"tcp://*:5565"</span><span style="color: #0000FF;">)</span>
<span style="color: #000080;font-style:italic;">--// broadcast 10 updates, with pause</span>
<span style="color: #008080;">for</span> <span style="color: #000000;">update_nbr</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">1</span> <span style="color: #008080;">to</span> <span style="color: #000000;">10</span> <span style="color: #008080;">do</span>
<span style="color: #004080;">string</span> <span style="color: #000000;">s</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">sprintf</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"Update %d"</span><span style="color: #0000FF;">,</span> <span style="color: #0000FF;">{</span> <span style="color: #000000;">update_nbr</span> <span style="color: #0000FF;">})</span>
<span style="color: #000000;">zmq_s_send</span><span style="color: #0000FF;">(</span><span style="color: #000000;">publisher</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">s</span><span style="color: #0000FF;">)</span>
<span style="color: #7060A8;">sleep</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">for</span>
<span style="color: #000000;">zmq_s_send</span><span style="color: #0000FF;">(</span><span style="color: #000000;">publisher</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"END"</span><span style="color: #0000FF;">)</span>
<span style="color: #7060A8;">sleep</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">zmq_close</span><span style="color: #0000FF;">(</span><span style="color: #000000;">sync</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">zmq_close</span><span style="color: #0000FF;">(</span><span style="color: #000000;">publisher</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">zmq_term</span><span style="color: #0000FF;">(</span><span style="color: #000000;">context</span><span style="color: #0000FF;">)</span>
<!--</lang>-->
 
<!--<lang Phix>(phixonline)-->
<span style="color: #7060A8;">puts</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"durasub:\n"</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">include</span> <span style="color: #000000;">zmq</span><span style="color: #0000FF;">/</span><span style="color: #000000;">zmq</span><span style="color: #0000FF;">.</span><span style="color: #000000;">e</span>
<span style="color: #004080;">atom</span> <span style="color: #000000;">context</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">zmq_init</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">zmq_assert</span><span style="color: #0000FF;">(</span><span style="color: #000000;">context</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"zmq_init"</span><span style="color: #0000FF;">)</span>
<span style="color: #000080;font-style:italic;">--// connect our subscriber socket</span>
<span style="color: #004080;">atom</span> <span style="color: #000000;">subscriber</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">zmq_socket</span><span style="color: #0000FF;">(</span><span style="color: #000000;">context</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">ZMQ_SUB</span><span style="color: #0000FF;">)</span>
<span style="color: #004080;">atom</span> <span style="color: #000000;">id</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">allocate_string</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"Hello"</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">zmq_setsockopt</span><span style="color: #0000FF;">(</span><span style="color: #000000;">subscriber</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">ZMQ_IDENTITY</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">id</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">5</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">zmq_setsockopt</span><span style="color: #0000FF;">(</span><span style="color: #000000;">subscriber</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">ZMQ_SUBSCRIBE</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">0</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">0</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">zmq_connect</span><span style="color: #0000FF;">(</span><span style="color: #000000;">subscriber</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"tcp://localhost:5565"</span><span style="color: #0000FF;">)</span>
<span style="color: #7060A8;">free</span><span style="color: #0000FF;">(</span><span style="color: #000000;">id</span><span style="color: #0000FF;">)</span>
<span style="color: #000080;font-style:italic;">--// synchronise with publisher</span>
<span style="color: #004080;">atom</span> <span style="color: #000000;">sync</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">zmq_socket</span><span style="color: #0000FF;">(</span><span style="color: #000000;">context</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">ZMQ_PUSH</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">zmq_connect</span><span style="color: #0000FF;">(</span><span style="color: #000000;">sync</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"tcp://localhost:5564"</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">zmq_s_send</span><span style="color: #0000FF;">(</span><span style="color: #000000;">sync</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">""</span><span style="color: #0000FF;">)</span>
<span style="color: #000080;font-style:italic;">--// get updates, Ctrl-C break</span>
<span style="color: #008080;">while</span> <span style="color: #004600;">true</span> <span style="color: #008080;">do</span>
<span style="color: #004080;">string</span> <span style="color: #000000;">s</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">zmq_s_recv</span><span style="color: #0000FF;">(</span><span style="color: #000000;">subscriber</span><span style="color: #0000FF;">)</span>
<span style="color: #7060A8;">printf</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"%s\n"</span><span style="color: #0000FF;">,</span> <span style="color: #0000FF;">{</span><span style="color: #000000;">s</span><span style="color: #0000FF;">})</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">s</span><span style="color: #0000FF;">==</span><span style="color: #008000;">"END"</span> <span style="color: #008080;">then</span> <span style="color: #008080;">exit</span> <span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">while</span>
<span style="color: #000000;">zmq_close</span><span style="color: #0000FF;">(</span><span style="color: #000000;">sync</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">zmq_close</span><span style="color: #0000FF;">(</span><span style="color: #000000;">subscriber</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">zmq_term</span><span style="color: #0000FF;">(</span><span style="color: #000000;">context</span><span style="color: #0000FF;">)</span>
<!--</lang>-->
 
=={{header|PicoLisp}}==
Petelomax
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