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What kinf of IPC is Mosquitto broker using? [message #1835380]

Wed, 02 December 2020 06:06

Kentin Cheng

Messages: 2
Registered: December 2020

Junior Member

Hi all,
I'm new to Mosquitto, I've learn that there are many ways(IPC) , ex : signal , shared memory..etc, for processes to communicate with each other,
so I'm curious about which way does Mosquitto use ?

Thanks, best regards,
Kentin

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Re: What kinf of IPC is Mosquitto broker using? [message #1835388 is a reply to message #1835380]

Wed, 02 December 2020 08:57

Roger Light

Messages: 90
Registered: September 2013

Member

The only communication with other processes that Mosquitto uses is... MQTT.

Cheers,

Roger

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Re: What kinf of IPC is Mosquitto broker using? [message #1835392 is a reply to message #1835388]

Wed, 02 December 2020 10:01

Kentin Cheng

Messages: 2
Registered: December 2020

Junior Member

Hi Roger,
thanks for the information, but I'm still confused about the question, I've traced the source code from github, I saw that sub_client.c includes <signal.h>, doesn't that means you use IPC's signal technique to communicate
(publisher<----->broker <-->subscriber)?
I got another question as below:
When the publisher publishes a message, the broker informs the subscriber to receive the message or the broker sends the message to the subscriber ?

Thanks,
Kentin

[Updated on: Wed, 02 December 2020 10:18]

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