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// Copyright (c) 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef NET_QUIC_QUIC_SPDY_SESSION_H_
#define NET_QUIC_QUIC_SPDY_SESSION_H_
#include <stddef.h>
#include "base/macros.h"
#include "net/quic/quic_headers_stream.h"
#include "net/quic/quic_session.h"
#include "net/quic/quic_spdy_stream.h"
namespace net {
namespace test {
class QuicSpdySessionPeer;
} // namespace test
// A QUIC session with a headers stream.
class NET_EXPORT_PRIVATE QuicSpdySession : public QuicSession {
public:
QuicSpdySession(QuicConnection* connection, const QuicConfig& config);
~QuicSpdySession() override;
void Initialize() override;
// Called by |headers_stream_| when headers have been received for a stream.
virtual void OnStreamHeaders(QuicStreamId stream_id,
StringPiece headers_data);
// Called by |headers_stream_| when headers with a priority have been
// received for this stream. This method will only be called for server
// streams.
virtual void OnStreamHeadersPriority(QuicStreamId stream_id,
SpdyPriority priority);
// Called by |headers_stream_| when headers have been completely received
// for a stream. |fin| will be true if the fin flag was set in the headers
// frame.
virtual void OnStreamHeadersComplete(QuicStreamId stream_id,
bool fin,
size_t frame_len);
// Called by |headers_stream_| when push promise headers have been
// received for a stream.
virtual void OnPromiseHeaders(QuicStreamId stream_id,
StringPiece headers_data);
// Called by |headers_stream_| when push promise headers have been
// completely received. |fin| will be true if the fin flag was set
// in the headers.
virtual void OnPromiseHeadersComplete(QuicStreamId stream_id,
QuicStreamId promised_stream_id,
size_t frame_len);
// Writes |headers| for the stream |id| to the dedicated headers stream.
// If |fin| is true, then no more data will be sent for the stream |id|.
// If provided, |ack_notifier_delegate| will be registered to be notified when
// we have seen ACKs for all packets resulting from this call.
virtual size_t WriteHeaders(QuicStreamId id,
const SpdyHeaderBlock& headers,
bool fin,
SpdyPriority priority,
QuicAckListenerInterface* ack_notifier_delegate);
QuicHeadersStream* headers_stream() { return headers_stream_.get(); }
// Called when Head of Line Blocking happens in the headers stream.
// |delta| indicates how long that piece of data has been blocked.
virtual void OnHeadersHeadOfLineBlocking(QuicTime::Delta delta);
// Called by the stream on creation to set priority in the write blocked list.
void RegisterStreamPriority(QuicStreamId id, SpdyPriority priority);
// Called by the stream on deletion to clear priority crom the write blocked
// list.
void UnregisterStreamPriority(QuicStreamId id);
// Called by the stream on SetPriority to update priority on the write blocked
// list.
void UpdateStreamPriority(QuicStreamId id, SpdyPriority new_priority);
protected:
// Override CreateIncomingDynamicStream() and CreateOutgoingDynamicStream()
// with QuicSpdyStream return type to make sure that all data streams are
// QuicSpdyStreams.
QuicSpdyStream* CreateIncomingDynamicStream(QuicStreamId id) override = 0;
QuicSpdyStream* CreateOutgoingDynamicStream(SpdyPriority priority) override =
0;
QuicSpdyStream* GetSpdyDataStream(const QuicStreamId stream_id);
// If an incoming stream can be created, return true.
virtual bool ShouldCreateIncomingDynamicStream(QuicStreamId id) = 0;
// If an outgoing stream can be created, return true.
virtual bool ShouldCreateOutgoingDynamicStream() = 0;
private:
friend class test::QuicSpdySessionPeer;
scoped_ptr<QuicHeadersStream> headers_stream_;
DISALLOW_COPY_AND_ASSIGN(QuicSpdySession);
};
} // namespace net
#endif // NET_QUIC_QUIC_SPDY_SESSION_H_
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