blob: 3a7fe39ccbc8f3ca5881dcfb6b1d9d73cf7a5705 (
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
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
// Copyright (c) 2016 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 "net/quic/core/quic_header_list.h"
#include "net/quic/core/quic_packets.h"
#include "net/quic/platform/api/quic_flags.h"
#include "net/spdy/core/spdy_protocol.h"
using std::string;
namespace net {
QuicHeaderList::QuicHeaderList()
: max_header_list_size_(kDefaultMaxUncompressedHeaderSize),
current_header_list_size_(0),
uncompressed_header_bytes_(0),
compressed_header_bytes_(0) {}
QuicHeaderList::QuicHeaderList(QuicHeaderList&& other) = default;
QuicHeaderList::QuicHeaderList(const QuicHeaderList& other) = default;
QuicHeaderList& QuicHeaderList::operator=(const QuicHeaderList& other) =
default;
QuicHeaderList& QuicHeaderList::operator=(QuicHeaderList&& other) = default;
QuicHeaderList::~QuicHeaderList() {}
void QuicHeaderList::OnHeaderBlockStart() {
if (FLAGS_quic_restart_flag_quic_header_list_size) {
QUIC_BUG_IF(current_header_list_size_ != 0)
<< "OnHeaderBlockStart called more than once!";
} else {
QUIC_BUG_IF(uncompressed_header_bytes_ != 0)
<< "OnHeaderBlockStart called more than once!";
}
}
void QuicHeaderList::OnHeader(QuicStringPiece name, QuicStringPiece value) {
// Avoid infinite buffering of headers. No longer store headers
// once the current headers are over the limit.
if (FLAGS_quic_restart_flag_quic_header_list_size) {
if (current_header_list_size_ < max_header_list_size_) {
current_header_list_size_ += name.size();
current_header_list_size_ += value.size();
current_header_list_size_ += kPerHeaderOverhead;
header_list_.emplace_back(string(name), string(value));
}
} else {
if (uncompressed_header_bytes_ == 0 || !header_list_.empty()) {
header_list_.emplace_back(string(name), string(value));
}
}
}
void QuicHeaderList::OnHeaderBlockEnd(size_t uncompressed_header_bytes,
size_t compressed_header_bytes) {
uncompressed_header_bytes_ = uncompressed_header_bytes;
compressed_header_bytes_ = compressed_header_bytes;
if (FLAGS_quic_restart_flag_quic_header_list_size) {
if (current_header_list_size_ > max_header_list_size_) {
Clear();
}
} else {
if (uncompressed_header_bytes_ > max_header_list_size_) {
Clear();
}
}
}
void QuicHeaderList::Clear() {
header_list_.clear();
current_header_list_size_ = 0;
uncompressed_header_bytes_ = 0;
compressed_header_bytes_ = 0;
}
string QuicHeaderList::DebugString() const {
string s = "{ ";
for (const auto& p : *this) {
s.append(p.first + "=" + p.second + ", ");
}
s.append("}");
return s;
}
} // namespace net
|
