On Wed, 2013-09-11 at 16:38 +0200, Jacek Caban wrote:
> Hi Hans,
>
> On 09/11/13 13:50, Hans Leidekker wrote:
> > static DWORD chunked_get_avail_data(data_stream_t *stream, http_request_t
> > *req)
> > {
> > - /* Allow reading only from read buffer */
> > + chunked_stream_t *chunked_stream = (chunked_stream_t*)stream;
> > + DWORD res;
> > +
> > + if(!chunked_stream->chunk_size || chunked_stream->chunk_size == ~0u) {
> > + res = start_next_chunk(chunked_stream, req);
> > + if(res != ERROR_SUCCESS)
> > + return 0;
> > + }
>
> start_next_chunk may block and we don't want chunked_get_avail_data to
> block.
We can't avoid that. If this is the first chunk or if the current chunk has
been consumed we need to read a couple of bytes to find out how much we can
expect.
Network traces tell me that native also performs a read on the first call to
InternetQueryDataAvailable.
