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Date: Wed, 29 Jun 2022 03:15:11 -0700 (PDT)
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Subject: SimpleComponents / MQTT
From: slos <new.stephane.los@gmail.com>
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Hello Dmitry,
I'm having fun playing with SimpleComponents MQTT implementation and I have=
 some questions...

I'm on Debian Sid using :
GNAT Studio 23.0w (20220512) hosted on x86_64-pc-linux-gnu
GNAT 11.3.0 targeting x86_64-linux-gnu

GNAT Studio
(c) 2001-2022 AdaCore

Building the test application is fine using :
gprbuild -d -P/home/slos/Ada/SimpleComponents/components_4_62/test_componen=
ts/components-connections_server-mqtt-test_mqtt.gpr -XObject_Dir=3D. -Xarch=
=3Dx86_64 -XTarget_OS=3DWindows -XDevelopment=3DDebug -XLegacy=3DAda2012 -X=
Atomic_Access=3Dauto -XTasking=3DMultiple -XTraced_objects=3DOff /home/slos=
/Ada/SimpleComponents/components_4_62/test_components/test_mqtt_client.adb

Running using either "test.mosquitto.org" or local mosquitto gives an excep=
tion after some messages received :
Exception raised
raised GNAT.SOCKETS.SERVER.CONNECTION_ERROR : gnat-sockets-server.adb:1145

I don't recall having got exceptions with Gnat Community 2021 on Windows.
Could you please have a look on that behaviour ?

It should be possible to use user name and password but I haven't found how=
 with your implementation.
Could you tell please ?

Of course, one should use TLS in this case. Is it feasible and how ?

Also, how to provide a timestamp ?

Thanks a lot for your kind support.

Best Regards,
St=C3=A9phane
https://www.ada4automation.org/