assert(bytes_to_send <= stream->backlog_size);
if (bytes_to_send < stream->prebuffering_bytes) {
// We don't have enough bytes buffered to start this client yet.
assert(bytes_to_send <= stream->backlog_size);
if (bytes_to_send < stream->prebuffering_bytes) {
// We don't have enough bytes buffered to start this client yet.