AsyncStreams disconnect

Erel

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• Oct 17, 2012

• #2

You should also handle the Terminated event.

The Error or Terminated events will always be called when the device "knows" that the connection broke. The connection might appear to be connected although this is not the case.

For that reason I recommend you to use a heartbeat mechanism. You can check B4A-Bridge code for an example.

 

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W

wl

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• Oct 17, 2012

• #3

thanks Erel !

 

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wl

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• Oct 20, 2012

• #4

Erel,

In order to implement a heartbeat mechanism I would like to have a timeout while reading from the stream. When a timeout occurs a TimeOut event should be called.

It seems this is not possible with the standard RadnomAccess library. Would it be possible to obtain the code so I can make my own version that implements this ?

Thanks !

 

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Erel

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• Oct 21, 2012

• #5

I don't see how RandomAccessFile library is relevant in this case. Are you using AsyncStreams?

 

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wl

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• Oct 21, 2012

• #6

Hi Erel,

Yes I'm using AsyncStreams. But unless I'm mistaken but the AsyncStreams are part of the RandomAccessFile library ?

<name>anywheresoftware.b4a.randomaccessfile.AsyncStreams</name>

Thanks,

Wim

 

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Erel

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• Oct 21, 2012

• #7

I see. You want to update AsyncStreams. I'm sorry but this code is not available. I also don't think that it will help you in anyway.

Implementing a heartbeat mechanism is simple. You should have a timer that counts each second. When a message arrives the timer counter is reset.

If the counter reaches 10 then you break the connection. This is how B4A-Bridge timeout works.

 

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