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
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
|
// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/renderer/net_benchmarking_extension.h"
#include "base/no_destructor.h"
#include "chrome/common/net_benchmarking.mojom.h"
#include "content/public/renderer/render_thread.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "third_party/blink/public/platform/web_cache.h"
#include "v8/include/v8-extension.h"
#include "v8/include/v8-primitive.h"
#include "v8/include/v8-template.h"
using blink::WebCache;
const char kNetBenchmarkingExtensionName[] = "v8/NetBenchmarking";
namespace extensions_v8 {
class NetBenchmarkingWrapper : public v8::Extension {
public:
NetBenchmarkingWrapper() :
v8::Extension(kNetBenchmarkingExtensionName,
"if (typeof(chrome) == 'undefined') {"
" chrome = {};"
"};"
"if (typeof(chrome.benchmarking) == 'undefined') {"
" chrome.benchmarking = {};"
"};"
"chrome.benchmarking.clearCache = function() {"
" native function ClearCache();"
" ClearCache();"
"};"
"chrome.benchmarking.clearHostResolverCache = function() {"
" native function ClearHostResolverCache();"
" ClearHostResolverCache();"
"};"
"chrome.benchmarking.clearPredictorCache = function() {"
" native function ClearPredictorCache();"
" ClearPredictorCache();"
"};"
"chrome.benchmarking.closeConnections = function() {"
" native function CloseConnections();"
" CloseConnections();"
"};"
) {}
v8::Local<v8::FunctionTemplate> GetNativeFunctionTemplate(
v8::Isolate* isolate,
v8::Local<v8::String> name) override {
if (name->StringEquals(
v8::String::NewFromUtf8(isolate, "ClearCache",
v8::NewStringType::kInternalized)
.ToLocalChecked())) {
return v8::FunctionTemplate::New(isolate, ClearCache);
} else if (name->StringEquals(
v8::String::NewFromUtf8(isolate, "ClearHostResolverCache",
v8::NewStringType::kInternalized)
.ToLocalChecked())) {
return v8::FunctionTemplate::New(isolate, ClearHostResolverCache);
} else if (name->StringEquals(
v8::String::NewFromUtf8(isolate, "ClearPredictorCache",
v8::NewStringType::kInternalized)
.ToLocalChecked())) {
return v8::FunctionTemplate::New(isolate, ClearPredictorCache);
} else if (name->StringEquals(
v8::String::NewFromUtf8(isolate, "CloseConnections",
v8::NewStringType::kInternalized)
.ToLocalChecked())) {
return v8::FunctionTemplate::New(isolate, CloseConnections);
}
return v8::Local<v8::FunctionTemplate>();
}
static chrome::mojom::NetBenchmarking& GetNetBenchmarking() {
static base::NoDestructor<mojo::Remote<chrome::mojom::NetBenchmarking>>
net_benchmarking(ConnectToBrowser());
return **net_benchmarking;
}
static mojo::Remote<chrome::mojom::NetBenchmarking> ConnectToBrowser() {
mojo::Remote<chrome::mojom::NetBenchmarking> net_benchmarking;
content::RenderThread::Get()->BindHostReceiver(
net_benchmarking.BindNewPipeAndPassReceiver());
return net_benchmarking;
}
static void ClearCache(const v8::FunctionCallbackInfo<v8::Value>& args) {
GetNetBenchmarking().ClearCache();
WebCache::Clear();
}
static void ClearHostResolverCache(
const v8::FunctionCallbackInfo<v8::Value>& args) {
GetNetBenchmarking().ClearHostResolverCache();
}
static void ClearPredictorCache(
const v8::FunctionCallbackInfo<v8::Value>& args) {
GetNetBenchmarking().ClearPredictorCache();
}
static void CloseConnections(
const v8::FunctionCallbackInfo<v8::Value>& args) {
GetNetBenchmarking().CloseCurrentConnections();
}
};
std::unique_ptr<v8::Extension> NetBenchmarkingExtension::Get() {
return std::make_unique<NetBenchmarkingWrapper>();
}
} // namespace extensions_v8
|
