File: global_routing_id.cc

package info (click to toggle)
chromium 139.0.7258.127-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 6,122,156 kB
  • sloc: cpp: 35,100,771; ansic: 7,163,530; javascript: 4,103,002; python: 1,436,920; asm: 946,517; xml: 746,709; pascal: 187,653; perl: 88,691; sh: 88,436; objc: 79,953; sql: 51,488; cs: 44,583; fortran: 24,137; makefile: 22,147; tcl: 15,277; php: 13,980; yacc: 8,984; ruby: 7,485; awk: 3,720; lisp: 3,096; lex: 1,327; ada: 727; jsp: 228; sed: 36
file content (54 lines) | stat: -rw-r--r-- 1,462 bytes parent folder | download | duplicates (6)
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
// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "content/public/browser/global_routing_id.h"

#include "base/trace_event/typed_macros.h"
#include "base/tracing/protos/chrome_track_event.pbzero.h"

namespace content {

void GlobalRenderFrameHostId::WriteIntoTrace(
    perfetto::TracedProto<TraceProto> proto) const {
  proto->set_process_id(child_id);
  proto->set_routing_id(frame_routing_id);
}

base::Pickle GlobalRenderFrameHostToken::ToPickle() {
  base::Pickle pickle;

  pickle.WriteInt(child_id);
  pickle.WriteUInt64(frame_token.value().GetHighForSerialization());
  pickle.WriteUInt64(frame_token.value().GetLowForSerialization());

  return pickle;
}

// static
std::optional<GlobalRenderFrameHostToken>
GlobalRenderFrameHostToken::FromPickle(const base::Pickle& pickle) {
  base::PickleIterator iterator(pickle);
  int child_id = 0;
  uint64_t high = 0;
  uint64_t low = 0;
  if (!iterator.ReadInt(&child_id) || !iterator.ReadUInt64(&high) ||
      !iterator.ReadUInt64(&low)) {
    return std::nullopt;
  }

  auto deserialized_frame_token =
      base::UnguessableToken::Deserialize(high, low);
  if (!deserialized_frame_token) {
    return std::nullopt;
  }

  GlobalRenderFrameHostToken token;

  token.child_id = child_id;
  token.frame_token = blink::LocalFrameToken(*deserialized_frame_token);

  return token;
}

}  // namespace content