Re: Get data from pipe

[<beppecosta@xxxxxxxxxxx>]

Hi Scott,

> f) if len > 0, go back to step (d).  
> Keep doing this until len <= 0, that's when you've reached >the end of the data on the pipe.

I did a quick test.

The Api should return a document of 21.931 bytes (but it 
does not return the size and can't know this in advance) 
then I try to read one block of data at the time as you 
suggest in d) and f).

------
p_buffer = %alloc(8196);
DoU len <= 0;
  len = read(output(1): p_buffer: 8196);
  // stream out
  If (SDR > 0) and len > 0;
    RC = Write(SDR: p_buffer: len);
  EndIf;
EndDo;
dealloc p_buffer;
----

The first and second read return len=8196; the 3rd returns 
5539 (8196+8196+5539=21931) but It seems that when I reach 
the end of data the program does not return len = 0 but it 
hangs on the 4th read instruction.

And if the document is not found the read hangs at first 
run.

Any suggestion ?