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* Facebook -> Meta in copyright rg --files | xargs sed -i 's#Copyright (c) Facebook, Inc. and its affiliates.#Copyright (c) Meta Platforms, Inc. and affiliates.#g' * Manual tweaks
54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
/**
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#include <node.h>
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#include "hardware-counter.h"
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namespace PerfCounters {
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using HPHP::HardwareCounter;
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void Init(const v8::FunctionCallbackInfo<v8::Value>& args) {
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// TODO: Allow customizing recorded events
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bool enable = true;
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std::string events = "";
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bool recordSubprocesses = false;
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HardwareCounter::Init(enable, events, recordSubprocesses);
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HardwareCounter::s_counter.getCheck();
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}
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void GetCounters(const v8::FunctionCallbackInfo<v8::Value>& args) {
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v8::Isolate* isolate = args.GetIsolate();
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v8::Local<v8::Object> obj = v8::Object::New(isolate);
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std::pair<v8::Isolate*, v8::Local<v8::Object>> pair(isolate, obj);
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HardwareCounter::GetPerfEvents(
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[](const std::string& key, int64_t value, void* data) {
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std::pair<v8::Isolate*, v8::Local<v8::Object>>& pair =
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*reinterpret_cast<std::pair<v8::Isolate*, v8::Local<v8::Object>>*>(data);
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v8::Isolate* isolate = pair.first;
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v8::Local<v8::Object> obj = pair.second;
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obj->Set(
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v8::String::NewFromUtf8(isolate, key.c_str()),
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v8::Number::New(isolate, value)
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);
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},
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&pair);
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args.GetReturnValue().Set(obj);
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}
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void InitModule(v8::Local<v8::Object> exports) {
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NODE_SET_METHOD(exports, "init", Init);
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NODE_SET_METHOD(exports, "getCounters", GetCounters);
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}
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NODE_MODULE(perfcounters, InitModule)
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}
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