v8/test/cctest/profiler-extension.cc

// Copyright 2013 the V8 project authors. All rights reserved.
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// Tests of profiles generator and utilities.

#include "profiler-extension.h"

#include "cctest.h"

const v8::CpuProfile* ProfilerExtension::last_profile = NULL;
const char* ProfilerExtension::kSource =
    "native function startProfiling();"
    "native function stopProfiling();";

v8::Handle<v8::FunctionTemplate> ProfilerExtension::GetNativeFunctionTemplate(
    v8::Isolate* isolate, v8::Handle<v8::String> name) {
  if (name->Equals(v8::String::NewFromUtf8(isolate, "startProfiling"))) {
    return v8::FunctionTemplate::New(ProfilerExtension::StartProfiling);
  } else if (name->Equals(v8::String::NewFromUtf8(isolate, "stopProfiling"))) {
    return v8::FunctionTemplate::New(ProfilerExtension::StopProfiling);
  } else {
    CHECK(false);
    return v8::Handle<v8::FunctionTemplate>();
  }
}


void ProfilerExtension::StartProfiling(
    const v8::FunctionCallbackInfo<v8::Value>& args) {
  last_profile = NULL;
  v8::CpuProfiler* cpu_profiler = args.GetIsolate()->GetCpuProfiler();
  cpu_profiler->StartCpuProfiling((args.Length() > 0)
      ? args[0].As<v8::String>()
      : v8::String::Empty(args.GetIsolate()));
}


void ProfilerExtension::StopProfiling(
    const v8::FunctionCallbackInfo<v8::Value>& args) {
  v8::CpuProfiler* cpu_profiler = args.GetIsolate()->GetCpuProfiler();
  last_profile = cpu_profiler->StopCpuProfiling((args.Length() > 0)
      ? args[0].As<v8::String>()
      : v8::String::Empty(args.GetIsolate()));
}


static ProfilerExtension kProfilerExtension;
v8::DeclareExtension kProfilerExtensionDeclaration(&kProfilerExtension);