chromium/third_party/blink/renderer/bindings/core/v8/v8_compile_hints_producer.cc

// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/351564777): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

#include "third_party/blink/renderer/bindings/core/v8/v8_compile_hints_producer.h"

#if BUILDFLAG(PRODUCE_V8_COMPILE_HINTS)

#include "base/rand_util.h"
#include "services/metrics/public/cpp/ukm_builders.h"
#include "third_party/blink/public/common/features.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_binding_for_core.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_compile_hints_common.h"
#include "third_party/blink/renderer/core/execution_context/execution_context.h"
#include "third_party/blink/renderer/core/frame/frame.h"
#include "third_party/blink/renderer/core/frame/local_frame.h"
#include "third_party/blink/renderer/core/page/page.h"
#include "third_party/blink/renderer/platform/bindings/script_state.h"
#include "third_party/blink/renderer/platform/wtf/bloom_filter.h"

#include <limits>

namespace blink::v8_compile_hints {

std::atomic<bool>
    V8CrowdsourcedCompileHintsProducer::data_generated_for_this_process_ = …;

namespace {

bool RandomlySelectedToGenerateData() { … }

bool ShouldThisProcessGenerateData() { … }

}  // namespace

V8CrowdsourcedCompileHintsProducer::V8CrowdsourcedCompileHintsProducer(
    Page* page)
    : … { … }

void V8CrowdsourcedCompileHintsProducer::RecordScript(
    Frame* frame,
    ExecutionContext* execution_context,
    const v8::Local<v8::Script> script,
    ScriptState* script_state) { … }

void V8CrowdsourcedCompileHintsProducer::GenerateData() { … }

void V8CrowdsourcedCompileHintsProducer::Trace(Visitor* visitor) const { … }

void V8CrowdsourcedCompileHintsProducer::ClearData() { … }

namespace {

void ClearDataTask(V8CrowdsourcedCompileHintsProducer* producer) { … }

}  // namespace

void V8CrowdsourcedCompileHintsProducer::ScheduleDataDeletionTask(
    ExecutionContext* execution_context) { … }

bool V8CrowdsourcedCompileHintsProducer::MightGenerateData() { … }

bool V8CrowdsourcedCompileHintsProducer::SendDataToUkm() { … }

void V8CrowdsourcedCompileHintsProducer::AddNoise(unsigned* data) { … }

}  // namespace blink::v8_compile_hints

#endif  // BUILDFLAG(PRODUCE_V8_COMPILE_HINTS)