blob: 1e3f6e7a0b903071dd77a2be5fb222bd9ea6002c [file] [log] [blame]
// Copyright 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.
#include <stdint.h>
#include <memory>
#include <vector>
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "net/base/load_timing_info.h"
#include "net/base/net_export.h"
#include "net/http/bidirectional_stream_impl.h"
#include "net/http/bidirectional_stream_request_info.h"
#include "net/http/http_request_info.h"
#include "net/spdy/spdy_read_queue.h"
#include "net/spdy/spdy_session.h"
#include "net/spdy/spdy_stream.h"
namespace base {
class Timer;
} // namespace base
namespace net {
class IOBuffer;
class NetLogWithSource;
class SpdyHeaderBlock;
class NET_EXPORT_PRIVATE BidirectionalStreamSpdyImpl
: public BidirectionalStreamImpl,
public SpdyStream::Delegate {
explicit BidirectionalStreamSpdyImpl(
const base::WeakPtr<SpdySession>& spdy_session);
~BidirectionalStreamSpdyImpl() override;
// BidirectionalStreamImpl implementation:
void Start(const BidirectionalStreamRequestInfo* request_info,
const NetLogWithSource& net_log,
bool send_request_headers_automatically,
BidirectionalStreamImpl::Delegate* delegate,
std::unique_ptr<base::Timer> timer) override;
void SendRequestHeaders() override;
int ReadData(IOBuffer* buf, int buf_len) override;
void SendData(const scoped_refptr<IOBuffer>& data,
int length,
bool end_stream) override;
void SendvData(const std::vector<scoped_refptr<IOBuffer>>& buffers,
const std::vector<int>& lengths,
bool end_stream) override;
NextProto GetProtocol() const override;
int64_t GetTotalReceivedBytes() const override;
int64_t GetTotalSentBytes() const override;
bool GetLoadTimingInfo(LoadTimingInfo* load_timing_info) const override;
// SpdyStream::Delegate implementation:
void OnRequestHeadersSent() override;
SpdyResponseHeadersStatus OnResponseHeadersUpdated(
const SpdyHeaderBlock& response_headers) override;
void OnDataReceived(std::unique_ptr<SpdyBuffer> buffer) override;
void OnDataSent() override;
void OnTrailers(const SpdyHeaderBlock& trailers) override;
void OnClose(int status) override;
int SendRequestHeadersHelper();
void OnStreamInitialized(int rv);
// Notifies delegate of an error.
void NotifyError(int rv);
void ResetStream();
void ScheduleBufferedRead();
void DoBufferedRead();
bool ShouldWaitForMoreBufferedData() const;
// Handles the case where stream is closed when SendData()/SendvData() is
// called. Return true if stream is closed.
bool MaybeHandleStreamClosedInSendData();
const base::WeakPtr<SpdySession> spdy_session_;
const BidirectionalStreamRequestInfo* request_info_;
BidirectionalStreamImpl::Delegate* delegate_;
std::unique_ptr<base::Timer> timer_;
SpdyStreamRequest stream_request_;
base::WeakPtr<SpdyStream> stream_;
NextProto negotiated_protocol_;
// Buffers the data as it arrives asynchronously from the stream.
SpdyReadQueue read_data_queue_;
// Whether received more data has arrived since started waiting.
bool more_read_data_pending_;
// User provided read buffer for ReadData() response.
scoped_refptr<IOBuffer> read_buffer_;
int read_buffer_len_;
// Whether client has written the end of stream flag in request headers or
// in SendData()/SendvData().
bool written_end_of_stream_;
// Whether a SendData() or SendvData() is pending.
bool write_pending_;
// Whether OnClose has been invoked.
bool stream_closed_;
// Status reported in OnClose.
int closed_stream_status_;
// After |stream_| has been closed, this keeps track of the total number of
// bytes received over the network for |stream_| while it was open.
int64_t closed_stream_received_bytes_;
// After |stream_| has been closed, this keeps track of the total number of
// bytes sent over the network for |stream_| while it was open.
int64_t closed_stream_sent_bytes_;
// True if |stream_| has LoadTimingInfo when it is closed.
bool closed_has_load_timing_info_;
// LoadTimingInfo populated when |stream_| is closed.
LoadTimingInfo closed_load_timing_info_;
// This is the combined buffer of buffers passed in through SendvData.
// Keep a reference here so it is alive until OnDataSent is invoked.
scoped_refptr<IOBuffer> pending_combined_buffer_;
base::WeakPtrFactory<BidirectionalStreamSpdyImpl> weak_factory_;
} // namespace net