?sending message into n device? could be interpreted into two cases.
One is the after finding the devices and send to them.
e.g) find the ?notification alarm? resource and send the message to
them as single shot.
? This need to be handled from the Group concept.
The other is broadcasting the message in to the network.
e.g) fire alarm message need to be sent as a single messaging.
? We can think about the new special resource which receives the
broadcast(multicast) message except the advertisement presence message.
Cesar, what is yours?
BR, Uze Choi
From: iotivity-dev-bounces at lists.iotivity.org
[mailto:[email protected]] On Behalf Of Lankswert, Patrick
Sent: Wednesday, June 10, 2015 11:59 PM
To: Cesar Meira
Cc: iotivity-dev at lists.iotivity.org
Subject: Re: [dev] Broadcast messages
Cesar,
It was not obvious to me where you were attempting to send a broadcast.
Pat
From: Cesar Meira [mailto:[email protected]]
Sent: Wednesday, June 10, 2015 7:45 AM
To: Lankswert, Patrick
Cc: iotivity-dev at lists.iotivity.org
Subject: Re: [dev] Broadcast messages
Sure, I have attached the client and server codes.
Any questions please let me know, and thanks for your time!
On Tue, Jun 9, 2015 at 12:02 PM, Lankswert, Patrick <patrick.lankswert at
intel.com> wrote:
Cesar,
It should work with caveats. Can you share the code that you are using to
broadcast the message?
Here are the caveats:
? Broadcast message cannot be confirmed since you do not know who will
receive it in advance
? UDP and the broadcast (multicast) methods are best effort and
therefore packets may be lost although very unlikely on a local network with a
modern switch
Pat
From: iotivity-dev-bounces at lists.iotivity.org
[mailto:[email protected]] On Behalf Of Cesar Meira
Sent: Tuesday, June 09, 2015 9:21 AM
To: iotivity-dev at lists.iotivity.org
Subject: [dev] Broadcast messages
Hello all,
I did a little 'hello world' application using IoTivity, sending a command to a
device to turn a led on and off. The server runs in a Raspberry Pi and the
client in a Linux notebook.
The application did okay with this configuration. But then I tried to push a
little forward and added another Raspberry Pi, with the exactly same code as
the previous one. The objective was to test if the client could send "broadcast
messages", and if similar devices could receive them.
I set both RPis to register the endpoint "/red_led". My idea was that when the
client sends a command "turn on" to endpoint "/red_led", both RPis would
receive this command, but in the end only one of them received the message.
So, is there a way to send a single broadcast message to "n" devices? Did I
just misinterpreted the idea of the endpoint?
Thanks in advance!
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