Android Question AsyncStreams counting byte

[nicolino33]

Hello, is there a solution to count the transmitted bytes? (in socket output stream, not file or array)

 

[Erel]

What do you need it for?

Unless there is an error then all the data you write with AStream.Write will be sent. If there is an error then the connection will break and the Error or Terminated events will fire.

 

[nicolino33]

Hi Erel, thanks for your reply, I need it for look the amount of bytes transferts with progress bar!

 

[Erel]

There are two options:

1. Send a CountingInputStream with AStream.WriteStream. This is good if you are sending a single large message (or file).
2. Check the queue size with OutputQueueSize. This is useful if you are sending many small messages. OutputQueueSize doesn't return bytes, it returns the number of messages waiting to be sent.

 

[nicolino33]

Thanks for your reply, but I can only use WRITE, I'm using visual basic to receive files, I tried to send them with WriteStream but it does not work, accept only WRITE mode, do you have an example of how to receive file with WriteStream in vb.net?

 

[OliverA]

Clue: prefix mode.
https://www.b4x.com/android/forum/threads/b4x-asyncstreams-tutorial.7669/

https://www.b4x.com/android/forum/threads/asyncstreams-counting-byte.91940/#post-580806

Edit: This is a reply (hint) to this question

do you have an example of how to receive file with WriteStream in vb.net?

 

[nicolino33]

I'v made this, it work and send file, but the counter of countingStream is allways 0

Private asi As OutputStream
Public countingStream As CountingOutputStream
asi=Socket1.OutputStream
countingStream.Initialize(asi)
asi.WriteBytes(BufferFoto,0,BufferFoto.Length)

 

[OliverA]

I'v made this, it work and send file, but the counter of countingStream is allways 0

You did not follow @Erel's instructions.

1. Send a CountingInputStream with AStream.WriteStream.

Yet you used OutputStream and WriteBytes of the Socket class instead of InputStream and the WriteStream method of the AsyncStreams class (https://www.b4x.com/android/help/randomaccessfile.html#asyncstreams_writestream).

 

[nicolino33]

Ok thanks, I'v solved:

Dim in As InputStream
Dim countingStream As CountingInputStream
Dim asi As AsyncStreams
asi.InitializePrefix(Socket1.InputStream,True,Socket1.OutputStream,"asi")
in.InitializeFromBytesArray(BufferFoto, 0, BufferFoto.Length)
countingStream.Initialize(in)
asi.WriteStream(countingStream, BufferFoto.Length)

this is the way to read the amount of bytes transferred to an other device via TCP socket.

 

[Erel]

Please use [code]code here...[/code] tags when posting code.