Add support for HTTP/3 control stream.
Upon initialization, QuicSpdySession will create a write_unidirectional stream
and write stream type and settings when crypto handshake is completed.
The peer will receive the stream type and create a read_unidirectional stream
that reads the settings.
gfe-relnote: version 99 only. Not in prod.
PiperOrigin-RevId: 252650934
Change-Id: I708280eb94dea3d6eb7e54b96ce8ee91e2b8684f
diff --git a/quic/core/http/quic_send_control_stream.cc b/quic/core/http/quic_send_control_stream.cc
index 40b6111..19ad0c3 100644
--- a/quic/core/http/quic_send_control_stream.cc
+++ b/quic/core/http/quic_send_control_stream.cc
@@ -6,6 +6,7 @@
#include "net/third_party/quiche/src/quic/core/http/quic_spdy_session.h"
#include "net/third_party/quiche/src/quic/core/quic_utils.h"
+#include "net/third_party/quiche/src/quic/platform/api/quic_arraysize.h"
#include "net/third_party/quiche/src/quic/platform/api/quic_flag_utils.h"
#include "net/third_party/quiche/src/quic/platform/api/quic_flags.h"
@@ -26,6 +27,16 @@
void QuicSendControlStream::SendSettingsFrame(const SettingsFrame& settings) {
DCHECK(!settings_sent_);
+
+ QuicConnection::ScopedPacketFlusher flusher(
+ session()->connection(), QuicConnection::SEND_ACK_IF_PENDING);
+ // Send the stream type on so the peer knows about this stream.
+ char data[sizeof(kControlStream)];
+ QuicDataWriter writer(QUIC_ARRAYSIZE(data), data);
+ writer.WriteVarInt62(kControlStream);
+ WriteOrBufferData(QuicStringPiece(writer.data(), writer.length()), false,
+ nullptr);
+
std::unique_ptr<char[]> buffer;
QuicByteCount frame_length =
encoder_.SerializeSettingsFrame(settings, &buffer);
