// Copyright Joyent, Inc. and other Node contributors.

//

// Permission is hereby granted, free of charge, to any person obtaining a

// copy of this software and associated documentation files (the

// "Software"), to deal in the Software without restriction, including

// without limitation the rights to use, copy, modify, merge, publish,

// distribute, sublicense, and/or sell copies of the Software, and to permit

// persons to whom the Software is furnished to do so, subject to the

// following conditions:

//

// The above copyright notice and this permission notice shall be included

// in all copies or substantial portions of the Software.

//

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN

// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,

// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR

// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE

// USE OR OTHER DEALINGS IN THE SOFTWARE.

#ifndef SRC_ENV_INL_H_

#define SRC_ENV_INL_H_

#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS

#include "aliased_buffer.h"

#include "allocated_buffer-inl.h"

#include "callback_queue-inl.h"

#include "env.h"

#include "node.h"

#include "node_context_data.h"

#include "node_perf_common.h"

#include "util-inl.h"

#include "uv.h"

#include "v8-fast-api-calls.h"

#include "v8.h"

#include <cstddef>

#include <cstdint>

#include <utility>

namespace node {

inline v8::Isolate* IsolateData::isolate() const {

return isolate_;

}

inline uv_loop_t* IsolateData::event_loop() const {

return event_loop_;

}

inline NodeArrayBufferAllocator* IsolateData::node_allocator() const {

return node_allocator_;

}

inline MultiIsolatePlatform* IsolateData::platform() const {

return platform_;

}

inline void IsolateData::set_worker_context(worker::Worker* context) {

CHECK_NULL(worker_context_); // Should be set only once.

worker_context_ = context;

}

inline worker::Worker* IsolateData::worker_context() const {

return worker_context_;

}

inline v8::Local<v8::String> IsolateData::async_wrap_provider(int index) const {

return async_wrap_providers_[index].Get(isolate_);

}

inline AliasedUint32Array& AsyncHooks::fields() {

return fields_;

}

inline AliasedFloat64Array& AsyncHooks::async_id_fields() {

return async_id_fields_;

}

inline AliasedFloat64Array& AsyncHooks::async_ids_stack() {

return async_ids_stack_;

}

v8::Local<v8::Array> AsyncHooks::js_execution_async_resources() {

if (UNLIKELY(js_execution_async_resources_.IsEmpty())) {

js_execution_async_resources_.Reset(

env()->isolate(), v8::Array::New(env()->isolate()));

}

return PersistentToLocal::Strong(js_execution_async_resources_);

}

v8::Local<v8::Object> AsyncHooks::native_execution_async_resource(size_t i) {

if (i >= native_execution_async_resources_.size()) return {};

return native_execution_async_resources_[i];

}

inline void AsyncHooks::SetJSPromiseHooks(v8::Local<v8::Function> init,

v8::Local<v8::Function> before,

v8::Local<v8::Function> after,

v8::Local<v8::Function> resolve) {

js_promise_hooks_[0].Reset(env()->isolate(), init);

js_promise_hooks_[1].Reset(env()->isolate(), before);

js_promise_hooks_[2].Reset(env()->isolate(), after);

js_promise_hooks_[3].Reset(env()->isolate(), resolve);

for (auto it = contexts_.begin(); it != contexts_.end(); it++) {

if (it->IsEmpty()) {

it = contexts_.erase(it);

it--;

continue;

}

PersistentToLocal::Weak(env()->isolate(), *it)

->SetPromiseHooks(init, before, after, resolve);

}

}

inline v8::Local<v8::String> AsyncHooks::provider_string(int idx) {

return env()->isolate_data()->async_wrap_provider(idx);

}

inline void AsyncHooks::no_force_checks() {

fields_[kCheck] -= 1;

}

inline Environment* AsyncHooks::env() {

return Environment::ForAsyncHooks(this);

}

// Remember to keep this code aligned with pushAsyncContext() in JS.

inline void AsyncHooks::push_async_context(double async_id,

double trigger_async_id,

v8::Local<v8::Object> resource) {

// Since async_hooks is experimental, do only perform the check

// when async_hooks is enabled.

if (fields_[kCheck] > 0) {

CHECK_GE(async_id, -1);

CHECK_GE(trigger_async_id, -1);

}

uint32_t offset = fields_[kStackLength];

if (offset * 2 >= async_ids_stack_.Length())

grow_async_ids_stack();

async_ids_stack_[2 * offset] = async_id_fields_[kExecutionAsyncId];

async_ids_stack_[2 * offset + 1] = async_id_fields_[kTriggerAsyncId];

fields_[kStackLength] += 1;

async_id_fields_[kExecutionAsyncId] = async_id;

async_id_fields_[kTriggerAsyncId] = trigger_async_id;

#ifdef DEBUG

for (uint32_t i = offset; i < native_execution_async_resources_.size(); i++)

CHECK(native_execution_async_resources_[i].IsEmpty());

#endif

// When this call comes from JS (as a way of increasing the stack size),

// `resource` will be empty, because JS caches these values anyway.

if (!resource.IsEmpty()) {

native_execution_async_resources_.resize(offset + 1);

// Caveat: This is a v8::Local<> assignment, we do not keep a v8::Global<>!

native_execution_async_resources_[offset] = resource;

}

}

// Remember to keep this code aligned with popAsyncContext() in JS.

inline bool AsyncHooks::pop_async_context(double async_id) {

// In case of an exception then this may have already been reset, if the

// stack was multiple MakeCallback()'s deep.

if (UNLIKELY(fields_[kStackLength] == 0)) return false;

// Ask for the async_id to be restored as a check that the stack

// hasn't been corrupted.

// Since async_hooks is experimental, do only perform the check

// when async_hooks is enabled.

if (UNLIKELY(fields_[kCheck] > 0 &&

async_id_fields_[kExecutionAsyncId] != async_id)) {

FailWithCorruptedAsyncStack(async_id);

}

uint32_t offset = fields_[kStackLength] - 1;

async_id_fields_[kExecutionAsyncId] = async_ids_stack_[2 * offset];

async_id_fields_[kTriggerAsyncId] = async_ids_stack_[2 * offset + 1];

fields_[kStackLength] = offset;

if (LIKELY(offset < native_execution_async_resources_.size() &&

!native_execution_async_resources_[offset].IsEmpty())) {

#ifdef DEBUG

for (uint32_t i = offset + 1;

i < native_execution_async_resources_.size();

i++) {

CHECK(native_execution_async_resources_[i].IsEmpty());

}

#endif

native_execution_async_resources_.resize(offset);

if (native_execution_async_resources_.size() <

native_execution_async_resources_.capacity() / 2 &&

native_execution_async_resources_.size() > 16) {

native_execution_async_resources_.shrink_to_fit();

}

}

if (UNLIKELY(js_execution_async_resources()->Length() > offset)) {

v8::HandleScope handle_scope(env()->isolate());

USE(js_execution_async_resources()->Set(

env()->context(),

env()->length_string(),

v8::Integer::NewFromUnsigned(env()->isolate(), offset)));

}

return fields_[kStackLength] > 0;

}

void AsyncHooks::clear_async_id_stack() {

v8::Isolate* isolate = env()->isolate();

v8::HandleScope handle_scope(isolate);

if (!js_execution_async_resources_.IsEmpty()) {

USE(PersistentToLocal::Strong(js_execution_async_resources_)->Set(

env()->context(),

env()->length_string(),

v8::Integer::NewFromUnsigned(isolate, 0)));

}

native_execution_async_resources_.clear();

native_execution_async_resources_.shrink_to_fit();

async_id_fields_[kExecutionAsyncId] = 0;

async_id_fields_[kTriggerAsyncId] = 0;

fields_[kStackLength] = 0;

}

inline void AsyncHooks::AddContext(v8::Local<v8::Context> ctx) {

ctx->SetPromiseHooks(

js_promise_hooks_[0].IsEmpty() ?

v8::Local<v8::Function>() :

PersistentToLocal::Strong(js_promise_hooks_[0]),

js_promise_hooks_[1].IsEmpty() ?

v8::Local<v8::Function>() :

PersistentToLocal::Strong(js_promise_hooks_[1]),

js_promise_hooks_[2].IsEmpty() ?

v8::Local<v8::Function>() :

PersistentToLocal::Strong(js_promise_hooks_[2]),

js_promise_hooks_[3].IsEmpty() ?

v8::Local<v8::Function>() :

PersistentToLocal::Strong(js_promise_hooks_[3]));

size_t id = contexts_.size();

contexts_.resize(id + 1);

contexts_[id].Reset(env()->isolate(), ctx);

contexts_[id].SetWeak();

}

inline void AsyncHooks::RemoveContext(v8::Local<v8::Context> ctx) {

v8::Isolate* isolate = env()->isolate();

v8::HandleScope handle_scope(isolate);

for (auto it = contexts_.begin(); it != contexts_.end(); it++) {

if (it->IsEmpty()) {

it = contexts_.erase(it);

it--;

continue;

}

v8::Local<v8::Context> saved_context =

PersistentToLocal::Weak(isolate, *it);

if (saved_context == ctx) {

it->Reset();

contexts_.erase(it);

break;

}

}

}

// The DefaultTriggerAsyncIdScope(AsyncWrap*) constructor is defined in

// async_wrap-inl.h to avoid a circular dependency.

inline AsyncHooks::DefaultTriggerAsyncIdScope ::DefaultTriggerAsyncIdScope(

Environment* env, double default_trigger_async_id)

: async_hooks_(env->async_hooks()) {

if (env->async_hooks()->fields()[AsyncHooks::kCheck] > 0) {

CHECK_GE(default_trigger_async_id, 0);

}

old_default_trigger_async_id_ =

async_hooks_->async_id_fields()[AsyncHooks::kDefaultTriggerAsyncId];

async_hooks_->async_id_fields()[AsyncHooks::kDefaultTriggerAsyncId] =

default_trigger_async_id;

}

inline AsyncHooks::DefaultTriggerAsyncIdScope ::~DefaultTriggerAsyncIdScope() {

async_hooks_->async_id_fields()[AsyncHooks::kDefaultTriggerAsyncId] =

old_default_trigger_async_id_;

}

Environment* Environment::ForAsyncHooks(AsyncHooks* hooks) {

return ContainerOf(&Environment::async_hooks_, hooks);

}

inline size_t Environment::async_callback_scope_depth() const {

return async_callback_scope_depth_;

}

inline void Environment::PushAsyncCallbackScope() {

async_callback_scope_depth_++;

}

inline void Environment::PopAsyncCallbackScope() {

async_callback_scope_depth_--;

}

inline AliasedUint32Array& ImmediateInfo::fields() {

return fields_;

}

inline uint32_t ImmediateInfo::count() const {

return fields_[kCount];

}

inline uint32_t ImmediateInfo::ref_count() const {

return fields_[kRefCount];

}

inline bool ImmediateInfo::has_outstanding() const {

return fields_[kHasOutstanding] == 1;

}

inline void ImmediateInfo::ref_count_inc(uint32_t increment) {

fields_[kRefCount] += increment;

}

inline void ImmediateInfo::ref_count_dec(uint32_t decrement) {

fields_[kRefCount] -= decrement;

}

inline AliasedUint8Array& TickInfo::fields() {

return fields_;

}

inline bool TickInfo::has_tick_scheduled() const {

return fields_[kHasTickScheduled] == 1;

}

inline bool TickInfo::has_rejection_to_warn() const {

return fields_[kHasRejectionToWarn] == 1;

}

inline void Environment::AssignToContext(v8::Local<v8::Context> context,

const ContextInfo& info) {

context->SetAlignedPointerInEmbedderData(

ContextEmbedderIndex::kEnvironment, this);

// Used by Environment::GetCurrent to know that we are on a node context.

context->SetAlignedPointerInEmbedderData(

ContextEmbedderIndex::kContextTag, Environment::kNodeContextTagPtr);

// Used to retrieve bindings

context->SetAlignedPointerInEmbedderData(

ContextEmbedderIndex::kBindingListIndex, &(this->bindings_));

#if HAVE_INSPECTOR

inspector_agent()->ContextCreated(context, info);

#endif // HAVE_INSPECTOR

this->async_hooks()->AddContext(context);

}

inline Environment* Environment::GetCurrent(v8::Isolate* isolate) {

if (UNLIKELY(!isolate->InContext())) return nullptr;

v8::HandleScope handle_scope(isolate);

return GetCurrent(isolate->GetCurrentContext());

}

inline Environment* Environment::GetCurrent(v8::Local<v8::Context> context) {

if (UNLIKELY(context.IsEmpty())) {

return nullptr;

}

if (UNLIKELY(context->GetNumberOfEmbedderDataFields() <=

ContextEmbedderIndex::kContextTag)) {

return nullptr;

}

if (UNLIKELY(context->GetAlignedPointerFromEmbedderData(

ContextEmbedderIndex::kContextTag) !=

Environment::kNodeContextTagPtr)) {

return nullptr;

}

return static_cast<Environment*>(

context->GetAlignedPointerFromEmbedderData(

ContextEmbedderIndex::kEnvironment));

}

inline Environment* Environment::GetCurrent(

const v8::FunctionCallbackInfo<v8::Value>& info) {

return GetCurrent(info.GetIsolate()->GetCurrentContext());

}

template <typename T>

inline Environment* Environment::GetCurrent(

const v8::PropertyCallbackInfo<T>& info) {

return GetCurrent(info.GetIsolate()->GetCurrentContext());

}

template <typename T, typename U>

inline T* Environment::GetBindingData(const v8::PropertyCallbackInfo<U>& info) {

return GetBindingData<T>(info.GetIsolate()->GetCurrentContext());

}

template <typename T>

inline T* Environment::GetBindingData(

const v8::FunctionCallbackInfo<v8::Value>& info) {

return GetBindingData<T>(info.GetIsolate()->GetCurrentContext());

}

template <typename T>

inline T* Environment::GetBindingData(v8::Local<v8::Context> context) {

BindingDataStore* map = static_cast<BindingDataStore*>(

context->GetAlignedPointerFromEmbedderData(

ContextEmbedderIndex::kBindingListIndex));

DCHECK_NOT_NULL(map);

auto it = map->find(T::type_name);

if (UNLIKELY(it == map->end())) return nullptr;

T* result = static_cast<T*>(it->second.get());

DCHECK_NOT_NULL(result);

DCHECK_EQ(result->env(), GetCurrent(context));

return result;

}

template <typename T>

inline T* Environment::AddBindingData(

v8::Local<v8::Context> context,

v8::Local<v8::Object> target) {

DCHECK_EQ(GetCurrent(context), this);

// This won't compile if T is not a BaseObject subclass.

BaseObjectPtr<T> item = MakeDetachedBaseObject<T>(this, target);

BindingDataStore* map = static_cast<BindingDataStore*>(

context->GetAlignedPointerFromEmbedderData(

ContextEmbedderIndex::kBindingListIndex));

DCHECK_NOT_NULL(map);

auto result = map->emplace(T::type_name, item);

CHECK(result.second);

DCHECK_EQ(GetBindingData<T>(context), item.get());

return item.get();

}

inline v8::Isolate* Environment::isolate() const {

return isolate_;

}

inline Environment* Environment::from_timer_handle(uv_timer_t* handle) {

return ContainerOf(&Environment::timer_handle_, handle);

}

inline uv_timer_t* Environment::timer_handle() {

return &timer_handle_;

}

inline Environment* Environment::from_immediate_check_handle(

uv_check_t* handle) {

return ContainerOf(&Environment::immediate_check_handle_, handle);

}

inline uv_check_t* Environment::immediate_check_handle() {

return &immediate_check_handle_;

}

inline uv_idle_t* Environment::immediate_idle_handle() {

return &immediate_idle_handle_;

}

inline void Environment::RegisterHandleCleanup(uv_handle_t* handle,

HandleCleanupCb cb,

void* arg) {

handle_cleanup_queue_.push_back(HandleCleanup{handle, cb, arg});

}

template <typename T, typename OnCloseCallback>

inline void Environment::CloseHandle(T* handle, OnCloseCallback callback) {

handle_cleanup_waiting_++;

static_assert(sizeof(T) >= sizeof(uv_handle_t), "T is a libuv handle");

static_assert(offsetof(T, data) == offsetof(uv_handle_t, data),

"T is a libuv handle");

static_assert(offsetof(T, close_cb) == offsetof(uv_handle_t, close_cb),

"T is a libuv handle");

struct CloseData {

Environment* env;

OnCloseCallback callback;

void* original_data;

};

handle->data = new CloseData { this, callback, handle->data };

uv_close(reinterpret_cast<uv_handle_t*>(handle), [](uv_handle_t* handle) {

std::unique_ptr<CloseData> data { static_cast<CloseData*>(handle->data) };

data->env->handle_cleanup_waiting_--;

handle->data = data->original_data;

data->callback(reinterpret_cast<T*>(handle));

});

}

void Environment::IncreaseWaitingRequestCounter() {

request_waiting_++;

}

void Environment::DecreaseWaitingRequestCounter() {

request_waiting_--;

CHECK_GE(request_waiting_, 0);

}

inline uv_loop_t* Environment::event_loop() const {

return isolate_data()->event_loop();

}

inline void Environment::TryLoadAddon(

const char* filename,

int flags,

const std::function<bool(binding::DLib*)>& was_loaded) {

loaded_addons_.emplace_back(filename, flags);

if (!was_loaded(&loaded_addons_.back())) {

loaded_addons_.pop_back();

}

}

#if HAVE_INSPECTOR

inline bool Environment::is_in_inspector_console_call() const {

return is_in_inspector_console_call_;

}

inline void Environment::set_is_in_inspector_console_call(bool value) {

is_in_inspector_console_call_ = value;

}

#endif

inline AsyncHooks* Environment::async_hooks() {

return &async_hooks_;

}

inline ImmediateInfo* Environment::immediate_info() {

return &immediate_info_;

}

inline TickInfo* Environment::tick_info() {

return &tick_info_;

}

inline uint64_t Environment::timer_base() const {

return timer_base_;

}

inline std::shared_ptr<KVStore> Environment::env_vars() {

return env_vars_;

}

inline void Environment::set_env_vars(std::shared_ptr<KVStore> env_vars) {

env_vars_ = env_vars;

}

inline bool Environment::printed_error() const {

return printed_error_;

}

inline void Environment::set_printed_error(bool value) {

printed_error_ = value;

}

inline void Environment::set_trace_sync_io(bool value) {

trace_sync_io_ = value;

}

inline bool Environment::abort_on_uncaught_exception() const {

return options_->abort_on_uncaught_exception;

}

inline void Environment::set_force_context_aware(bool value) {

options_->force_context_aware = value;

}

inline bool Environment::force_context_aware() const {

return options_->force_context_aware;

}

inline void Environment::set_abort_on_uncaught_exception(bool value) {

options_->abort_on_uncaught_exception = value;

}

inline AliasedUint32Array& Environment::should_abort_on_uncaught_toggle() {

return should_abort_on_uncaught_toggle_;

}

inline AliasedInt32Array& Environment::stream_base_state() {

return stream_base_state_;

}

inline uint32_t Environment::get_next_module_id() {

return module_id_counter_++;

}

inline uint32_t Environment::get_next_script_id() {

return script_id_counter_++;

}

inline uint32_t Environment::get_next_function_id() {

return function_id_counter_++;

}

ShouldNotAbortOnUncaughtScope::ShouldNotAbortOnUncaughtScope(

Environment* env)

: env_(env) {

env_->PushShouldNotAbortOnUncaughtScope();

}

ShouldNotAbortOnUncaughtScope::~ShouldNotAbortOnUncaughtScope() {

Close();

}

void ShouldNotAbortOnUncaughtScope::Close() {

if (env_ != nullptr) {

env_->PopShouldNotAbortOnUncaughtScope();

env_ = nullptr;

}

}

inline void Environment::PushShouldNotAbortOnUncaughtScope() {

should_not_abort_scope_counter_++;

}

inline void Environment::PopShouldNotAbortOnUncaughtScope() {

should_not_abort_scope_counter_--;

}

inline bool Environment::inside_should_not_abort_on_uncaught_scope() const {

return should_not_abort_scope_counter_ > 0;

}

inline std::vector<double>* Environment::destroy_async_id_list() {

return &destroy_async_id_list_;

}

inline double Environment::new_async_id() {

async_hooks()->async_id_fields()[AsyncHooks::kAsyncIdCounter] += 1;

return async_hooks()->async_id_fields()[AsyncHooks::kAsyncIdCounter];

}

inline double Environment::execution_async_id() {

return async_hooks()->async_id_fields()[AsyncHooks::kExecutionAsyncId];

}

inline double Environment::trigger_async_id() {

return async_hooks()->async_id_fields()[AsyncHooks::kTriggerAsyncId];

}

inline double Environment::get_default_trigger_async_id() {

double default_trigger_async_id =

async_hooks()->async_id_fields()[AsyncHooks::kDefaultTriggerAsyncId];

// If defaultTriggerAsyncId isn't set, use the executionAsyncId

if (default_trigger_async_id < 0)

default_trigger_async_id = execution_async_id();

return default_trigger_async_id;

}

inline std::shared_ptr<EnvironmentOptions> Environment::options() {

return options_;

}

inline const std::vector<std::string>& Environment::argv() {

return argv_;

}

inline const std::vector<std::string>& Environment::exec_argv() {

return exec_argv_;

}

inline const std::string& Environment::exec_path() const {

return exec_path_;

}

inline std::string Environment::GetCwd() {

char cwd[PATH_MAX_BYTES];

size_t size = PATH_MAX_BYTES;

const int err = uv_cwd(cwd, &size);

if (err == 0) {

CHECK_GT(size, 0);

return cwd;

}

// This can fail if the cwd is deleted. In that case, fall back to

// exec_path.

const std::string& exec_path = exec_path_;

return exec_path.substr(0, exec_path.find_last_of(kPathSeparator));

}

#if HAVE_INSPECTOR

inline void Environment::set_coverage_directory(const char* dir) {

coverage_directory_ = std::string(dir);

}

inline void Environment::set_coverage_connection(

std::unique_ptr<profiler::V8CoverageConnection> connection) {

CHECK_NULL(coverage_connection_);

std::swap(coverage_connection_, connection);

}

inline profiler::V8CoverageConnection* Environment::coverage_connection() {

return coverage_connection_.get();

}

inline const std::string& Environment::coverage_directory() const {

return coverage_directory_;

}

inline void Environment::set_cpu_profiler_connection(

std::unique_ptr<profiler::V8CpuProfilerConnection> connection) {

CHECK_NULL(cpu_profiler_connection_);

std::swap(cpu_profiler_connection_, connection);

}

inline profiler::V8CpuProfilerConnection*

Environment::cpu_profiler_connection() {

return cpu_profiler_connection_.get();

}

inline void Environment::set_cpu_prof_interval(uint64_t interval) {

cpu_prof_interval_ = interval;

}

inline uint64_t Environment::cpu_prof_interval() const {

return cpu_prof_interval_;

}

inline void Environment::set_cpu_prof_name(const std::string& name) {

cpu_prof_name_ = name;

}

inline const std::string& Environment::cpu_prof_name() const {

return cpu_prof_name_;

}

inline void Environment::set_cpu_prof_dir(const std::string& dir) {

cpu_prof_dir_ = dir;

}

inline const std::string& Environment::cpu_prof_dir() const {

return cpu_prof_dir_;

}

inline void Environment::set_heap_profiler_connection(

std::unique_ptr<profiler::V8HeapProfilerConnection> connection) {

CHECK_NULL(heap_profiler_connection_);

std::swap(heap_profiler_connection_, connection);

}

inline profiler::V8HeapProfilerConnection*

Environment::heap_profiler_connection() {

return heap_profiler_connection_.get();

}

inline void Environment::set_heap_prof_name(const std::string& name) {

heap_prof_name_ = name;

}

inline const std::string& Environment::heap_prof_name() const {

return heap_prof_name_;

}

inline void Environment::set_heap_prof_dir(const std::string& dir) {

heap_prof_dir_ = dir;

}

inline const std::string& Environment::heap_prof_dir() const {

return heap_prof_dir_;

}

inline void Environment::set_heap_prof_interval(uint64_t interval) {

heap_prof_interval_ = interval;

}

inline uint64_t Environment::heap_prof_interval() const {

return heap_prof_interval_;

}

#endif // HAVE_INSPECTOR

inline

std::shared_ptr<ExclusiveAccess<HostPort>> Environment::inspector_host_port() {

return inspector_host_port_;

}

inline std::shared_ptr<PerIsolateOptions> IsolateData::options() {

return options_;

}

inline void IsolateData::set_options(

std::shared_ptr<PerIsolateOptions> options) {

options_ = std::move(options);

}

template <typename Fn>

void Environment::SetImmediate(Fn&& cb, CallbackFlags::Flags flags) {

auto callback = native_immediates_.CreateCallback(std::move(cb), flags);

native_immediates_.Push(std::move(callback));

if (flags & CallbackFlags::kRefed) {

if (immediate_info()->ref_count() == 0)

ToggleImmediateRef(true);

immediate_info()->ref_count_inc(1);

}

}

template <typename Fn>

void Environment::SetImmediateThreadsafe(Fn&& cb, CallbackFlags::Flags flags) {

auto callback = native_immediates_threadsafe_.CreateCallback(

std::move(cb), flags);

{

Mutex::ScopedLock lock(native_immediates_threadsafe_mutex_);

native_immediates_threadsafe_.Push(std::move(callback));

if (task_queues_async_initialized_)

uv_async_send(&task_queues_async_);

}

}

template <typename Fn>

void Environment::RequestInterrupt(Fn&& cb) {

auto callback = native_immediates_interrupts_.CreateCallback(

std::move(cb), CallbackFlags::kRefed);

{

Mutex::ScopedLock lock(native_immediates_threadsafe_mutex_);

native_immediates_interrupts_.Push(std::move(callback));

if (task_queues_async_initialized_)

uv_async_send(&task_queues_async_);

}

RequestInterruptFromV8();

}

inline bool Environment::can_call_into_js() const {

return can_call_into_js_ && !is_stopping();

}

inline void Environment::set_can_call_into_js(bool can_call_into_js) {

can_call_into_js_ = can_call_into_js;

}

inline bool Environment::has_run_bootstrapping_code() const {

return has_run_bootstrapping_code_;

}

inline void Environment::DoneBootstrapping() {

has_run_bootstrapping_code_ = true;

// This adjusts the return value of base_object_created_after_bootstrap() so

// that tests that check the count do not have to account for internally

// created BaseObjects.

base_object_created_by_bootstrap_ = base_object_count_;

}

inline bool Environment::has_serialized_options() const {

return has_serialized_options_;

}

inline void Environment::set_has_serialized_options(bool value) {

has_serialized_options_ = value;

}

inline bool Environment::is_main_thread() const {

return worker_context() == nullptr;

}

inline bool Environment::no_native_addons() const {

return (flags_ & EnvironmentFlags::kNoNativeAddons) ||

!options_->allow_native_addons;

}

inline bool Environment::should_not_register_esm_loader() const {

return flags_ & EnvironmentFlags::kNoRegisterESMLoader;

}

inline bool Environment::owns_process_state() const {

return flags_ & EnvironmentFlags::kOwnsProcessState;

}

inline bool Environment::owns_inspector() const {

return flags_ & EnvironmentFlags::kOwnsInspector;

}

inline bool Environment::tracks_unmanaged_fds() const {

return flags_ & EnvironmentFlags::kTrackUnmanagedFds;

}

inline bool Environment::hide_console_windows() const {

return flags_ & EnvironmentFlags::kHideConsoleWindows;

}

inline bool Environment::no_global_search_paths() const {

return (flags_ & EnvironmentFlags::kNoGlobalSearchPaths) ||

!options_->global_search_paths;

}

inline bool Environment::no_browser_globals() const {

// configure --no-browser-globals

#ifdef NODE_NO_BROWSER_GLOBALS

return true;

#else

return flags_ & EnvironmentFlags::kNoBrowserGlobals;

#endif

}

bool Environment::filehandle_close_warning() const {

return emit_filehandle_warning_;

}

void Environment::set_filehandle_close_warning(bool on) {

emit_filehandle_warning_ = on;

}

void Environment::set_source_maps_enabled(bool on) {

source_maps_enabled_ = on;

}

bool Environment::source_maps_enabled() const {

return source_maps_enabled_;

}

inline uint64_t Environment::thread_id() const {

return thread_id_;

}

inline worker::Worker* Environment::worker_context() const {

return isolate_data()->worker_context();

}

inline void Environment::add_sub_worker_context(worker::Worker* context) {

sub_worker_contexts_.insert(context);

}

inline void Environment::remove_sub_worker_context(worker::Worker* context) {

sub_worker_contexts_.erase(context);

}

template <typename Fn>

inline void Environment::ForEachWorker(Fn&& iterator) {

for (worker::Worker* w : sub_worker_contexts_) iterator(w);

}

inline void Environment::add_refs(int64_t diff) {

task_queues_async_refs_ += diff;

CHECK_GE(task_queues_async_refs_, 0);

if (task_queues_async_refs_ == 0)

uv_unref(reinterpret_cast<uv_handle_t*>(&task_queues_async_));

else

uv_ref(reinterpret_cast<uv_handle_t*>(&task_queues_async_));

}

inline bool Environment::is_stopping() const {

return is_stopping_.load();

}

inline void Environment::set_stopping(bool value) {

is_stopping_.store(value);

}

inline std::list<node_module>* Environment::extra_linked_bindings() {

return &extra_linked_bindings_;

}

inline node_module* Environment::extra_linked_bindings_head() {

return extra_linked_bindings_.size() > 0 ?

&extra_linked_bindings_.front() : nullptr;

}

inline node_module* Environment::extra_linked_bindings_tail() {

return extra_linked_bindings_.size() > 0 ?

&extra_linked_bindings_.back() : nullptr;

}

inline const Mutex& Environment::extra_linked_bindings_mutex() const {

return extra_linked_bindings_mutex_;

}

inline performance::PerformanceState* Environment::performance_state() {

return performance_state_.get();

}

inline IsolateData* Environment::isolate_data() const {

return isolate_data_;

}

inline uv_buf_t Environment::allocate_managed_buffer(

const size_t suggested_size) {

NoArrayBufferZeroFillScope no_zero_fill_scope(isolate_data());

std::unique_ptr<v8::BackingStore> bs =

v8::ArrayBuffer::NewBackingStore(isolate(), suggested_size);

uv_buf_t buf = uv_buf_init(static_cast<char*>(bs->Data()), bs->ByteLength());

released_allocated_buffers()->emplace(buf.base, std::move(bs));

return buf;

}

inline std::unique_ptr<v8::BackingStore> Environment::release_managed_buffer(

const uv_buf_t& buf) {

std::unique_ptr<v8::BackingStore> bs;

if (buf.base != nullptr) {

auto map = released_allocated_buffers();

auto it = map->find(buf.base);

CHECK_NE(it, map->end());

bs = std::move(it->second);

map->erase(it);

}

return bs;

}

std::unordered_map<char*, std::unique_ptr<v8::BackingStore>>*

Environment::released_allocated_buffers() {

return &released_allocated_buffers_;

}