apr_status_t h2_stream_prep_read(h2_stream *stream,
apr_size_t *plen, int *peos)
{
apr_status_t status = APR_SUCCESS;
const char *src;
if (stream->bbout && !APR_BRIGADE_EMPTY(stream->bbout)) {
src = "stream";
status = h2_util_bb_avail(stream->bbout, plen, peos);
if (status == APR_SUCCESS && !*peos && !*plen) {
apr_brigade_cleanup(stream->bbout);
return h2_stream_prep_read(stream, plen, peos);
}
}
else {
src = "mplx";
status = h2_mplx_out_readx(stream->m, stream->id,
NULL, NULL, plen, peos);
}
if (status == APR_SUCCESS && !*peos && !*plen) {
status = APR_EAGAIN;
}
ap_log_cerror(APLOG_MARK, APLOG_TRACE1, status, stream->m->c,
"h2_stream(%ld-%d): prep_read %s, len=%ld eos=%d",
stream->m->id, stream->id,
src, (long)*plen, *peos);
return status;
}
apr_status_t h2_stream_readx(h2_stream *stream,
h2_io_data_cb *cb, void *ctx,
apr_size_t *plen, int *peos)
{
if (stream->bbout && !APR_BRIGADE_EMPTY(stream->bbout)) {
return h2_util_bb_readx(stream->bbout, cb, ctx, plen, peos);
}
return h2_mplx_out_readx(stream->m, stream->id,
cb, ctx, plen, peos);
}
apr_status_t h2_stream_readx(h2_stream *stream,
h2_io_data_cb *cb, void *ctx,
apr_off_t *plen, int *peos)
{
apr_status_t status = APR_SUCCESS;
apr_table_t *trailers = NULL;
const char *src;
H2_STREAM_OUT(APLOG_TRACE2, stream, "h2_stream readx_pre");
if (stream->rst_error) {
return APR_ECONNRESET;
}
*peos = 0;
if (!APR_BRIGADE_EMPTY(stream->bbout)) {
apr_off_t origlen = *plen;
src = "stream";
status = h2_util_bb_readx(stream->bbout, cb, ctx, plen, peos);
if (status == APR_SUCCESS && !*peos && !*plen) {
apr_brigade_cleanup(stream->bbout);
*plen = origlen;
return h2_stream_readx(stream, cb, ctx, plen, peos);
}
}
else {
src = "mplx";
status = h2_mplx_out_readx(stream->session->mplx, stream->id,
cb, ctx, plen, peos, &trailers);
}
if (trailers && stream->response) {
ap_log_cerror(APLOG_MARK, APLOG_TRACE1, status, stream->session->c,
"h2_stream(%ld-%d): readx, 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 readx_post");
ap_log_cerror(APLOG_MARK, APLOG_TRACE1, status, stream->session->c,
"h2_stream(%ld-%d): readx %s, len=%ld eos=%d",
stream->session->id, stream->id, src, (long)*plen, *peos);
H2_STREAM_OUT(APLOG_TRACE2, stream, "h2_stream readx_post");
return status;
}
apr_status_t h2_stream_prep_read(h2_stream *stream,
apr_off_t *plen, int *peos)
{
apr_status_t status = APR_SUCCESS;
const char *src;
apr_table_t *trailers = NULL;
int test_read = (*plen == 0);
if (stream->rst_error) {
return APR_ECONNRESET;
}
H2_STREAM_OUT(APLOG_TRACE2, stream, "h2_stream prep_read_pre");
if (!APR_BRIGADE_EMPTY(stream->bbout)) {
src = "stream";
status = h2_util_bb_avail(stream->bbout, plen, peos);
if (!test_read && status == APR_SUCCESS && !*peos && !*plen) {
apr_brigade_cleanup(stream->bbout);
return h2_stream_prep_read(stream, plen, peos);
}
trailers = stream->response? stream->response->trailers : NULL;
}
else {
src = "mplx";
status = h2_mplx_out_readx(stream->session->mplx, stream->id,
NULL, NULL, plen, peos, &trailers);
if (trailers && stream->response) {
h2_response_set_trailers(stream->response, trailers);
}
}
if (!test_read && status == APR_SUCCESS && !*peos && !*plen) {
status = APR_EAGAIN;
}
H2_STREAM_OUT(APLOG_TRACE2, stream, "h2_stream prep_read_post");
ap_log_cerror(APLOG_MARK, APLOG_TRACE1, status, stream->session->c,
"h2_stream(%ld-%d): prep_read %s, len=%ld eos=%d, trailers=%s",
stream->session->id, stream->id, src, (long)*plen, *peos,
trailers? "yes" : "no");
return status;
}
apr_status_t h2_stream_readx(h2_stream *stream,
h2_io_data_cb *cb, void *ctx,
apr_size_t *plen, int *peos)
{
apr_status_t status = APR_SUCCESS;
const char *src;
if (stream->rst_error) {
return APR_ECONNRESET;
}
*peos = 0;
if (!APR_BRIGADE_EMPTY(stream->bbout)) {
apr_size_t origlen = *plen;
src = "stream";
status = h2_util_bb_readx(stream->bbout, cb, ctx, plen, peos);
if (status == APR_SUCCESS && !*peos && !*plen) {
apr_brigade_cleanup(stream->bbout);
*plen = origlen;
return h2_stream_readx(stream, cb, ctx, plen, peos);
}
}
else {
src = "mplx";
status = h2_mplx_out_readx(stream->session->mplx, stream->id,
cb, ctx, plen, peos);
}
if (status == APR_SUCCESS && !*peos && !*plen) {
status = APR_EAGAIN;
}
ap_log_cerror(APLOG_MARK, APLOG_TRACE1, status, stream->session->c,
"h2_stream(%ld-%d): readx %s, len=%ld eos=%d",
stream->session->id, stream->id, src, (long)*plen, *peos);
return status;
}
