apr_status_t h2_stream_read_to(h2_stream *stream, apr_bucket_brigade *bb,
apr_size_t *plen, int *peos)
{
apr_status_t status = APR_SUCCESS;
if (stream->rst_error) {
return APR_ECONNRESET;
}
if (APR_BRIGADE_EMPTY(stream->bbout)) {
apr_size_t tlen = *plen;
int eos;
status = h2_mplx_out_read_to(stream->session->mplx, stream->id,
stream->bbout, &tlen, &eos);
}
if (status == APR_SUCCESS && !APR_BRIGADE_EMPTY(stream->bbout)) {
status = h2_transfer_brigade(bb, stream->bbout, stream->pool,
plen, peos);
}
else {
*plen = 0;
*peos = 0;
}
if (status == APR_SUCCESS && !*peos && !*plen) {
status = APR_EAGAIN;
}
ap_log_cerror(APLOG_MARK, APLOG_TRACE1, status, stream->session->c,
"h2_stream(%ld-%d): read_to, len=%ld eos=%d",
stream->session->id, stream->id, (long)*plen, *peos);
return status;
}
apr_status_t h2_stream_read_to(h2_stream *stream, apr_bucket_brigade *bb,
apr_off_t *plen, int *peos)
{
apr_status_t status = APR_SUCCESS;
apr_table_t *trailers = NULL;
H2_STREAM_OUT(APLOG_TRACE2, stream, "h2_stream read_to_pre");
if (stream->rst_error) {
return APR_ECONNRESET;
}
if (APR_BRIGADE_EMPTY(stream->bbout)) {
apr_off_t tlen = *plen;
int eos;
status = h2_mplx_out_read_to(stream->session->mplx, stream->id,
stream->bbout, &tlen, &eos, &trailers);
}
if (status == APR_SUCCESS && !APR_BRIGADE_EMPTY(stream->bbout)) {
status = h2_transfer_brigade(bb, stream->bbout, stream->pool,
plen, peos);
}
else {
*plen = 0;
*peos = 0;
}
if (trailers && stream->response) {
ap_log_cerror(APLOG_MARK, APLOG_TRACE1, status, stream->session->c,
"h2_stream(%ld-%d): read_to, saving trailers",
stream->session->id, stream->id);
h2_response_set_trailers(stream->response, trailers);
}
if (status == APR_SUCCESS && !*peos && !*plen) {
status = APR_EAGAIN;
}
H2_STREAM_OUT(APLOG_TRACE2, stream, "h2_stream read_to_post");
ap_log_cerror(APLOG_MARK, APLOG_TRACE1, status, stream->session->c,
"h2_stream(%ld-%d): read_to, len=%ld eos=%d",
stream->session->id, stream->id, (long)*plen, *peos);
return status;
}