blob: e463fcfff0912c3150e7d4c549c83462c3a1deff (
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
|
// Copyright (c) 2013 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 "content/renderer/memory_benchmarking_extension.h"
#include "base/strings/string_util.h"
#include "content/common/memory_benchmark_messages.h"
#include "content/renderer/render_thread_impl.h"
#if defined(USE_TCMALLOC) && (defined(OS_LINUX) || defined(OS_ANDROID))
#include "third_party/tcmalloc/chromium/src/gperftools/heap-profiler.h"
namespace {
const char kMemoryBenchmarkingExtensionName[] = "v8/MemoryBenchmarking";
}
namespace {
class MemoryBenchmarkingWrapper : public v8::Extension {
public:
MemoryBenchmarkingWrapper() :
v8::Extension(kMemoryBenchmarkingExtensionName,
"if (typeof(chrome) == 'undefined') {"
" chrome = {};"
"};"
"if (typeof(chrome.memoryBenchmarking) == 'undefined') {"
" chrome.memoryBenchmarking = {};"
"};"
"chrome.memoryBenchmarking.isHeapProfilerRunning = function() {"
" native function IsHeapProfilerRunning();"
" return IsHeapProfilerRunning();"
"};"
"chrome.memoryBenchmarking.heapProfilerDump = "
" function(process_type, reason) {"
" native function HeapProfilerDump();"
" HeapProfilerDump(process_type, reason);"
"};"
) {}
virtual v8::Handle<v8::FunctionTemplate> GetNativeFunction(
v8::Handle<v8::String> name) OVERRIDE {
if (name->Equals(v8::String::New("IsHeapProfilerRunning")))
return v8::FunctionTemplate::New(IsHeapProfilerRunning);
else if (name->Equals(v8::String::New("HeapProfilerDump")))
return v8::FunctionTemplate::New(HeapProfilerDump);
return v8::Handle<v8::FunctionTemplate>();
}
static void IsHeapProfilerRunning(
const v8::FunctionCallbackInfo<v8::Value>& args) {
args.GetReturnValue().Set(::IsHeapProfilerRunning());
}
static void HeapProfilerDump(
const v8::FunctionCallbackInfo<v8::Value>& args) {
std::string process_type;
if (args.Length() && args[0]->IsString())
process_type = *v8::String::AsciiValue(args[0]);
std::string reason("benchmarking_extension");
if (args.Length() > 1 && args[1]->IsString())
reason = *v8::String::AsciiValue(args[1]);
if (process_type == "browser") {
content::RenderThreadImpl::current()->Send(
new MemoryBenchmarkHostMsg_HeapProfilerDump(reason));
} else {
::HeapProfilerDump(reason.c_str());
}
}
};
} // namespace
namespace content {
v8::Extension* MemoryBenchmarkingExtension::Get() {
return new MemoryBenchmarkingWrapper();
}
} // namespace content
#endif // defined(USE_TCMALLOC) && (defined(OS_LINUX) || defined(OS_ANDROID))
|
