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// Copyright (c) 2011 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 "webkit/extensions/v8/profiler_extension.h"
#include "build/build_config.h"
#include "v8/include/v8.h"
#if defined(USE_TCMALLOC) && defined(OS_POSIX) && !defined(OS_MACOSX)
#include "third_party/tcmalloc/chromium/src/google/profiler.h"
#endif
const char kProfilerExtensionName[] = "v8/Profiler";
namespace extensions_v8 {
class ProfilerWrapper : public v8::Extension {
public:
ProfilerWrapper() :
v8::Extension(kProfilerExtensionName,
"if (typeof(chromium) == 'undefined') {"
" chromium = {};"
"}"
"chromium.Profiler = function() {"
" native function ProfilerStart();"
" native function ProfilerStop();"
" native function ProfilerFlush();"
" native function ProfilerClearData();"
" native function ProfilerSetThreadName();"
" this.start = function() {"
" ProfilerStart();"
" };"
" this.stop = function() {"
" ProfilerStop();"
" };"
" this.clear = function() {"
" ProfilerClearData();"
" };"
" this.flush = function() {"
" ProfilerFlush();"
" };"
" this.setThreadName = function(name) {"
" ProfilerSetThreadName(name);"
" };"
"};") {}
virtual v8::Handle<v8::FunctionTemplate> GetNativeFunction(
v8::Handle<v8::String> name) {
if (name->Equals(v8::String::New("ProfilerStart")))
return v8::FunctionTemplate::New(ProfilerStart);
else if (name->Equals(v8::String::New("ProfilerStop")))
return v8::FunctionTemplate::New(ProfilerStop);
else if (name->Equals(v8::String::New("ProfilerClearData")))
return v8::FunctionTemplate::New(ProfilerClearData);
else if (name->Equals(v8::String::New("ProfilerFlush")))
return v8::FunctionTemplate::New(ProfilerFlush);
else if (name->Equals(v8::String::New("ProfilerSetThreadName")))
return v8::FunctionTemplate::New(ProfilerSetThreadName);
return v8::Handle<v8::FunctionTemplate>();
}
static v8::Handle<v8::Value> ProfilerStart(const v8::Arguments& args) {
#if defined(USE_TCMALLOC) && defined(OS_POSIX) && !defined(OS_MACOSX)
::ProfilerStart("chrome-profile");
#endif
return v8::Undefined();
}
static v8::Handle<v8::Value> ProfilerStop(const v8::Arguments& args) {
#if defined(USE_TCMALLOC) && defined(OS_POSIX) && !defined(OS_MACOSX)
::ProfilerStop();
#endif
return v8::Undefined();
}
static v8::Handle<v8::Value> ProfilerClearData(const v8::Arguments& args) {
return v8::Undefined();
}
static v8::Handle<v8::Value> ProfilerFlush(const v8::Arguments& args) {
#if defined(USE_TCMALLOC) && defined(OS_POSIX) && !defined(OS_MACOSX)
::ProfilerFlush();
#endif
return v8::Undefined();
}
static v8::Handle<v8::Value> ProfilerSetThreadName(
const v8::Arguments& args) {
if (args.Length() >= 1 && args[0]->IsString()) {
v8::Local<v8::String> inputString = args[0]->ToString();
char nameBuffer[256];
inputString->WriteAscii(nameBuffer, 0, sizeof(nameBuffer)-1);
}
return v8::Undefined();
}
};
v8::Extension* ProfilerExtension::Get() {
return new ProfilerWrapper();
}
} // namespace extensions_v8
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