Will it stop the current xfer when FinishDataXfer() returns false？

[chca_2098406]

I start a thread to recive the data.

In the thread, there are 2 buffers. BufA and BufB. When one of them is full, the other one will collect the data.

I'll do this loop with  WaitForXfer, FinishDataXfer，BeginDataXfer。

BeginDataXfer()

while(1) {

     if(flag) {

          buf=bufA

          buf_next=bufB

     }else{

          buf_nex=bufA

          buf=bufB

     }

     flag=!flag

     WaitForXfer(buf)

     FinishDataXfer(buf)

     BeginDataXfer(buf_next)

     //..........

}

I found that, Once the FinishDataXfer fails, the data you received next time is not in buf, but in buf_next.

Is that possible?