32 lines
838 B
Julia
Executable File
32 lines
838 B
Julia
Executable File
# Read 20 messages in topic "test/..." from the public broker test.mosquitto.org
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using Mosquitto
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# Connect to a broker, also starts loop if Threads.nthreads()>1
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client = Client("test.mosquitto.org", 1883)
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# subscribe to topic "test"
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subscribe(client, "test/#")
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function onmessage(nmin)
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nmessages = Base.n_avail(Mosquitto.messages_channel)
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nmessages == 0 && return 0
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for i = 1:nmessages
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temp = take!(Mosquitto.messages_channel)
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println("Message $(nmin + i) of 20:")
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println("\ttopic: $(temp.topic)\tmessage:$(String(temp.payload))")
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end
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return nmessages
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end
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# Messages will be put in
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# the channel Mosquitto.messages_channel.
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nmessages = 0
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while nmessages<20
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# Take the message on arrival
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loop(client)
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nmessages += onmessage(nmessages)
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end
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# Close everything
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disconnect(client) |