blob: 1651a1cb0823ccfcce867ac8f5dcecc18a0e7a3d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
// Copyright (c) 2019 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 QUICHE_QUIC_QUIC_TRANSPORT_QUIC_TRANSPORT_STREAM_H_
#define QUICHE_QUIC_QUIC_TRANSPORT_QUIC_TRANSPORT_STREAM_H_
#include <cstddef>
#include <memory>
#include "net/third_party/quiche/src/quic/core/quic_session.h"
#include "net/third_party/quiche/src/quic/core/quic_stream.h"
#include "net/third_party/quiche/src/quic/core/quic_types.h"
#include "net/third_party/quiche/src/quic/platform/api/quic_macros.h"
#include "net/third_party/quiche/src/quic/platform/api/quic_string_piece.h"
#include "net/third_party/quiche/src/quic/quic_transport/quic_transport_session_interface.h"
namespace quic {
// QuicTransportStream is an extension of QuicStream that provides I/O interface
// that is safe to use in the QuicTransport context. The interface ensures no
// application data is processed before the client indication is processed.
class QUIC_EXPORT_PRIVATE QuicTransportStream : public QuicStream {
public:
class QUIC_EXPORT_PRIVATE Visitor {
public:
virtual ~Visitor() {}
virtual void OnCanRead() = 0;
virtual void OnFinRead() = 0;
virtual void OnCanWrite() = 0;
};
QuicTransportStream(QuicStreamId id,
QuicSession* session,
QuicTransportSessionInterface* session_interface);
// Reads at most |buffer_size| bytes into |buffer| and returns the number of
// bytes actually read.
size_t Read(char* buffer, size_t buffer_size);
// Reads all available data and appends it to the end of |output|.
size_t Read(std::string* output);
// Writes |data| into the stream. Returns true on success.
QUIC_MUST_USE_RESULT bool Write(QuicStringPiece data);
// Sends the FIN on the stream. Returns true on success.
QUIC_MUST_USE_RESULT bool SendFin();
// Indicates whether it is possible to write into stream right now.
bool CanWrite() const;
// Indicates the number of bytes that can be read from the stream.
size_t ReadableBytes() const;
// QuicSession method implementations.
void OnDataAvailable() override;
void OnCanWriteNewData() override;
Visitor* visitor() { return visitor_.get(); }
void set_visitor(std::unique_ptr<Visitor> visitor) {
visitor_ = std::move(visitor);
}
protected:
// Hide the methods that allow writing data without checking IsSessionReady().
using QuicStream::WriteMemSlices;
using QuicStream::WriteOrBufferData;
QuicTransportSessionInterface* session_interface_;
std::unique_ptr<Visitor> visitor_ = nullptr;
};
} // namespace quic
#endif // QUICHE_QUIC_QUIC_TRANSPORT_QUIC_TRANSPORT_STREAM_H_
|
