[fpc-pascal] MQTT package for freepascal/lazarus?

[Jean SUZINEAU]

May be with a pipe |  ?

Something like

mosquitto_sub -h 192.168.117.131 -F '@Y- at m-@d @H:@M:@S ; %t ; %p' -t '#' | SomePascalProgram

This way you'll receive the output of mosquitto_sub on the standard 
input of SomePascalProgram.

I've tested locally on an Apache log with
    tail -f /var/log.apache2/access.log | grep http

Le 23/10/2022 à 15:31, Bo Berglund via fpc-pascal a écrit :
> What happens if the data in the AProcess output stream is less than my buffer
> size, will it then stall until as many messages have arrived as will fill the
> buffer?

I think you can useAProcess.Output.NumBytesAvailable to avoid stalling 
and read just what is available :

https://www.freepascal.org/docs-html/fcl/pipes/tinputpipestream.numbytesavailable.html

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