something with AsyncStreams

[icefairy333]

@BA.ShortName("RandomAccessFile")
@BA.Version(1.3F)

there is something wrong with the function "AsyncStreams.write2"
yesterday I have wrote a bluetooth communication app when I call write2 the other device can not receivedany message,But when I call write it works fine!Then I had to wrote a simply function to spilt the bytes

Sub bytebuild(buf() As Byte,start As Int,length As Int) As Byte()
   Dim strTmp As String
   Dim bytes(0) As Byte
   If buf.length<length Then Return bytes
   strTmp=BytesToString(buf,start,length,"UTF-8")
   bytes=strTmp.GetBytes("UTF8")
   Return bytes
End Sub

and I have check the code of the AsyncStreams java

public boolean Write(byte[] Buffer)
  {
    return Write2(Buffer, 0, Buffer.length);
  }

  public boolean Write2(byte[] Buffer, int Start, int Length)
  {
    return aout.put(Buffer, Start, Length);
  }

I found that the codes are the same ~:sign0161:
what's wrong with me? serial connect and listen by "connect and listen" the other code haven't be modify

 

[Erel]

I don't see any bug. I guess that the values you pass (Start and Length) are incorrect.

 

[icefairy333]

sadly！today I use the astream object like

AStream.InitializePrefix(Main.serial1.InputStream,true, Main.serial1.OutputStream, "AStream")

when I pass the small file(example :1kb) it works fine ,but when i send a big file (for example 20kb),there are some probabilitys the file will be muddled.maybe I should use

AStream.InitializePrefix(Main.serial1.InputStream,false, Main.serial1.OutputStream, "AStream")

???:sign0085:

 

[icefairy333]

and I have spilted the file into 1kb or 10kb as an unit~

 

[Erel]

Are you using prefix mode in both sides of the connection?

 

[icefairy333]

yes Im sure that;now I had to split and rebuild the big file,I add the "filecontent index no." before the file content unit then it works fine.