Il 19/04/2012 10:36, Zhi Yong Wu ha scritto:
>> This counts the iov[out] element as part of the data. Should be
>> something like this instead:
>>
>> #warning FIXME: BIDI operation
>> if (in > 1) {
>> data_first = out + 1;
>> data_num = in - 1;
>> } else {
>> data_first = 1;
>> data_num = out - 1;
>> }
>>
>> for (i = 0; i < data_num; i++) {
>> exp_data_len += vq->iov[data_first + i].iov_len;
>> }
> I totally understand these lines of code, and it assume that one
> request can not have both in>1 and out>1? That is, one request is
> either read, or write, right?
In general no but for now yes (that's the #warning).
Paolo
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