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|
// 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 "env.h"
#include "node.h"
#include "util.h"
#include "util-inl.h"
#include "uv.h"
#include "v8.h"
#include "node_perf_common.h"
#include <stddef.h>
#include <stdint.h>
namespace node {
inline IsolateData::IsolateData(v8::Isolate* isolate, uv_loop_t* event_loop,
uint32_t* zero_fill_field) :
// Create string and private symbol properties as internalized one byte strings.
//
// Internalized because it makes property lookups a little faster and because
// the string is created in the old space straight away. It's going to end up
// in the old space sooner or later anyway but now it doesn't go through
// v8::Eternal's new space handling first.
//
// One byte because our strings are ASCII and we can safely skip V8's UTF-8
// decoding step. It's a one-time cost, but why pay it when you don't have to?
#define V(PropertyName, StringValue) \
PropertyName ## _( \
isolate, \
v8::Private::New( \
isolate, \
v8::String::NewFromOneByte( \
isolate, \
reinterpret_cast<const uint8_t*>(StringValue), \
v8::NewStringType::kInternalized, \
sizeof(StringValue) - 1).ToLocalChecked())),
PER_ISOLATE_PRIVATE_SYMBOL_PROPERTIES(V)
#undef V
#define V(PropertyName, StringValue) \
PropertyName ## _( \
isolate, \
v8::String::NewFromOneByte( \
isolate, \
reinterpret_cast<const uint8_t*>(StringValue), \
v8::NewStringType::kInternalized, \
sizeof(StringValue) - 1).ToLocalChecked()),
PER_ISOLATE_STRING_PROPERTIES(V)
#undef V
event_loop_(event_loop), zero_fill_field_(zero_fill_field) {}
inline uv_loop_t* IsolateData::event_loop() const {
return event_loop_;
}
inline uint32_t* IsolateData::zero_fill_field() const {
return zero_fill_field_;
}
inline Environment::AsyncHooks::AsyncHooks(v8::Isolate* isolate)
: isolate_(isolate),
fields_(isolate, kFieldsCount),
async_id_fields_(isolate, kUidFieldsCount) {
v8::HandleScope handle_scope(isolate_);
// kAsyncIdCounter should start at 1 because that'll be the id the execution
// context during bootstrap (code that runs before entering uv_run()).
async_id_fields_[AsyncHooks::kAsyncIdCounter] = 1;
// Create all the provider strings that will be passed to JS. Place them in
// an array so the array index matches the PROVIDER id offset. This way the
// strings can be retrieved quickly.
#define V(Provider) \
providers_[AsyncWrap::PROVIDER_ ## Provider].Set( \
isolate_, \
v8::String::NewFromOneByte( \
isolate_, \
reinterpret_cast<const uint8_t*>(#Provider), \
v8::NewStringType::kInternalized, \
sizeof(#Provider) - 1).ToLocalChecked());
NODE_ASYNC_PROVIDER_TYPES(V)
#undef V
}
inline AliasedBuffer<uint32_t, v8::Uint32Array>&
Environment::AsyncHooks::fields() {
return fields_;
}
inline int Environment::AsyncHooks::fields_count() const {
return kFieldsCount;
}
inline AliasedBuffer<double, v8::Float64Array>&
Environment::AsyncHooks::async_id_fields() {
return async_id_fields_;
}
inline int Environment::AsyncHooks::async_id_fields_count() const {
return kUidFieldsCount;
}
inline v8::Local<v8::String> Environment::AsyncHooks::provider_string(int idx) {
return providers_[idx].Get(isolate_);
}
inline void Environment::AsyncHooks::force_checks() {
// fields_ does not have the += operator defined
fields_[kCheck] = fields_[kCheck] + 1;
}
inline void Environment::AsyncHooks::push_async_ids(double async_id,
double trigger_async_id) {
// 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);
}
async_ids_stack_.push({ async_id_fields_[kExecutionAsyncId],
async_id_fields_[kTriggerAsyncId] });
async_id_fields_[kExecutionAsyncId] = async_id;
async_id_fields_[kTriggerAsyncId] = trigger_async_id;
}
inline bool Environment::AsyncHooks::pop_async_id(double async_id) {
// In case of an exception then this may have already been reset, if the
// stack was multiple MakeCallback()'s deep.
if (async_ids_stack_.empty()) 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 (fields_[kCheck] > 0 && async_id_fields_[kExecutionAsyncId] != async_id) {
fprintf(stderr,
"Error: async hook stack has become corrupted ("
"actual: %.f, expected: %.f)\n",
async_id_fields_.GetValue(kExecutionAsyncId),
async_id);
Environment* env = Environment::GetCurrent(isolate_);
DumpBacktrace(stderr);
fflush(stderr);
if (!env->abort_on_uncaught_exception())
exit(1);
fprintf(stderr, "\n");
fflush(stderr);
ABORT_NO_BACKTRACE();
}
auto async_ids = async_ids_stack_.top();
async_ids_stack_.pop();
async_id_fields_[kExecutionAsyncId] = async_ids.async_id;
async_id_fields_[kTriggerAsyncId] = async_ids.trigger_async_id;
return !async_ids_stack_.empty();
}
inline size_t Environment::AsyncHooks::stack_size() {
return async_ids_stack_.size();
}
inline void Environment::AsyncHooks::clear_async_id_stack() {
while (!async_ids_stack_.empty())
async_ids_stack_.pop();
async_id_fields_[kExecutionAsyncId] = 0;
async_id_fields_[kTriggerAsyncId] = 0;
}
inline Environment::AsyncHooks::InitScope::InitScope(
Environment* env, double init_trigger_async_id)
: env_(env),
async_id_fields_ref_(env->async_hooks()->async_id_fields()) {
if (env_->async_hooks()->fields()[AsyncHooks::kCheck] > 0) {
CHECK_GE(init_trigger_async_id, -1);
}
env->async_hooks()->push_async_ids(
async_id_fields_ref_[AsyncHooks::kExecutionAsyncId],
init_trigger_async_id);
}
inline Environment::AsyncHooks::InitScope::~InitScope() {
env_->async_hooks()->pop_async_id(
async_id_fields_ref_[AsyncHooks::kExecutionAsyncId]);
}
inline Environment::AsyncCallbackScope::AsyncCallbackScope(Environment* env)
: env_(env) {
env_->makecallback_cntr_++;
}
inline Environment::AsyncCallbackScope::~AsyncCallbackScope() {
env_->makecallback_cntr_--;
}
inline bool Environment::AsyncCallbackScope::in_makecallback() const {
return env_->makecallback_cntr_ > 1;
}
inline Environment::DomainFlag::DomainFlag() {
for (int i = 0; i < kFieldsCount; ++i) fields_[i] = 0;
}
inline uint32_t* Environment::DomainFlag::fields() {
return fields_;
}
inline int Environment::DomainFlag::fields_count() const {
return kFieldsCount;
}
inline uint32_t Environment::DomainFlag::count() const {
return fields_[kCount];
}
inline Environment::TickInfo::TickInfo() {
for (int i = 0; i < kFieldsCount; ++i)
fields_[i] = 0;
}
inline uint32_t* Environment::TickInfo::fields() {
return fields_;
}
inline int Environment::TickInfo::fields_count() const {
return kFieldsCount;
}
inline uint32_t Environment::TickInfo::index() const {
return fields_[kIndex];
}
inline uint32_t Environment::TickInfo::length() const {
return fields_[kLength];
}
inline void Environment::TickInfo::set_index(uint32_t value) {
fields_[kIndex] = value;
}
inline void Environment::AssignToContext(v8::Local<v8::Context> context) {
context->SetAlignedPointerInEmbedderData(kContextEmbedderDataIndex, this);
#if HAVE_INSPECTOR
inspector_agent()->ContextCreated(context);
#endif // HAVE_INSPECTOR
}
inline Environment* Environment::GetCurrent(v8::Isolate* isolate) {
return GetCurrent(isolate->GetCurrentContext());
}
inline Environment* Environment::GetCurrent(v8::Local<v8::Context> context) {
return static_cast<Environment*>(
context->GetAlignedPointerFromEmbedderData(kContextEmbedderDataIndex));
}
inline Environment* Environment::GetCurrent(
const v8::FunctionCallbackInfo<v8::Value>& info) {
CHECK(info.Data()->IsExternal());
return static_cast<Environment*>(info.Data().As<v8::External>()->Value());
}
template <typename T>
inline Environment* Environment::GetCurrent(
const v8::PropertyCallbackInfo<T>& info) {
CHECK(info.Data()->IsExternal());
return static_cast<Environment*>(
info.Data().template As<v8::External>()->Value());
}
inline Environment::Environment(IsolateData* isolate_data,
v8::Local<v8::Context> context)
: isolate_(context->GetIsolate()),
isolate_data_(isolate_data),
async_hooks_(context->GetIsolate()),
timer_base_(uv_now(isolate_data->event_loop())),
using_domains_(false),
printed_error_(false),
trace_sync_io_(false),
abort_on_uncaught_exception_(false),
emit_napi_warning_(true),
makecallback_cntr_(0),
#if HAVE_INSPECTOR
inspector_agent_(this),
#endif
handle_cleanup_waiting_(0),
http_parser_buffer_(nullptr),
fs_stats_field_array_(nullptr),
context_(context->GetIsolate(), context) {
// We'll be creating new objects so make sure we've entered the context.
v8::HandleScope handle_scope(isolate());
v8::Context::Scope context_scope(context);
set_as_external(v8::External::New(isolate(), this));
v8::Local<v8::Primitive> null = v8::Null(isolate());
v8::Local<v8::Object> binding_cache_object = v8::Object::New(isolate());
CHECK(binding_cache_object->SetPrototype(context, null).FromJust());
set_binding_cache_object(binding_cache_object);
v8::Local<v8::Object> internal_binding_cache_object =
v8::Object::New(isolate());
CHECK(internal_binding_cache_object->SetPrototype(context, null).FromJust());
set_internal_binding_cache_object(internal_binding_cache_object);
set_module_load_list_array(v8::Array::New(isolate()));
AssignToContext(context);
destroy_async_id_list_.reserve(512);
performance_state_ = Calloc<performance::performance_state>(1);
performance_state_->milestones[
performance::NODE_PERFORMANCE_MILESTONE_ENVIRONMENT] =
PERFORMANCE_NOW();
performance_state_->milestones[
performance::NODE_PERFORMANCE_MILESTONE_NODE_START] =
performance::performance_node_start;
performance_state_->milestones[
performance::NODE_PERFORMANCE_MILESTONE_V8_START] =
performance::performance_v8_start;
}
inline Environment::~Environment() {
v8::HandleScope handle_scope(isolate());
context()->SetAlignedPointerInEmbedderData(kContextEmbedderDataIndex,
nullptr);
#define V(PropertyName, TypeName) PropertyName ## _.Reset();
ENVIRONMENT_STRONG_PERSISTENT_PROPERTIES(V)
#undef V
delete[] heap_statistics_buffer_;
delete[] heap_space_statistics_buffer_;
delete[] http_parser_buffer_;
delete http2_state_;
free(performance_state_);
}
inline v8::Isolate* Environment::isolate() const {
return isolate_;
}
inline bool Environment::in_domain() const {
// The const_cast is okay, it doesn't violate conceptual const-ness.
return using_domains() &&
const_cast<Environment*>(this)->domain_flag()->count() > 0;
}
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 Environment* Environment::from_destroy_async_ids_timer_handle(
uv_timer_t* handle) {
return ContainerOf(&Environment::destroy_async_ids_timer_handle_, handle);
}
inline uv_timer_t* Environment::destroy_async_ids_timer_handle() {
return &destroy_async_ids_timer_handle_;
}
inline void Environment::RegisterHandleCleanup(uv_handle_t* handle,
HandleCleanupCb cb,
void *arg) {
handle_cleanup_queue_.PushBack(new HandleCleanup(handle, cb, arg));
}
inline void Environment::FinishHandleCleanup(uv_handle_t* handle) {
handle_cleanup_waiting_--;
}
inline uv_loop_t* Environment::event_loop() const {
return isolate_data()->event_loop();
}
inline Environment::AsyncHooks* Environment::async_hooks() {
return &async_hooks_;
}
inline Environment::DomainFlag* Environment::domain_flag() {
return &domain_flag_;
}
inline Environment::TickInfo* Environment::tick_info() {
return &tick_info_;
}
inline uint64_t Environment::timer_base() const {
return timer_base_;
}
inline bool Environment::using_domains() const {
return using_domains_;
}
inline void Environment::set_using_domains(bool value) {
using_domains_ = value;
}
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 abort_on_uncaught_exception_;
}
inline void Environment::set_abort_on_uncaught_exception(bool value) {
abort_on_uncaught_exception_ = value;
}
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] =
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_init_trigger_async_id() {
AliasedBuffer<double, v8::Float64Array>& async_id_fields =
async_hooks()->async_id_fields();
double tid = async_id_fields[AsyncHooks::kInitTriggerAsyncId];
async_id_fields[AsyncHooks::kInitTriggerAsyncId] = 0;
if (tid <= 0) tid = execution_async_id();
return tid;
}
inline void Environment::set_init_trigger_async_id(const double id) {
async_hooks()->async_id_fields()[AsyncHooks::kInitTriggerAsyncId] = id;
}
inline double* Environment::heap_statistics_buffer() const {
CHECK_NE(heap_statistics_buffer_, nullptr);
return heap_statistics_buffer_;
}
inline void Environment::set_heap_statistics_buffer(double* pointer) {
CHECK_EQ(heap_statistics_buffer_, nullptr); // Should be set only once.
heap_statistics_buffer_ = pointer;
}
inline double* Environment::heap_space_statistics_buffer() const {
CHECK_NE(heap_space_statistics_buffer_, nullptr);
return heap_space_statistics_buffer_;
}
inline void Environment::set_heap_space_statistics_buffer(double* pointer) {
CHECK_EQ(heap_space_statistics_buffer_, nullptr); // Should be set only once.
heap_space_statistics_buffer_ = pointer;
}
inline char* Environment::http_parser_buffer() const {
return http_parser_buffer_;
}
inline void Environment::set_http_parser_buffer(char* buffer) {
CHECK_EQ(http_parser_buffer_, nullptr); // Should be set only once.
http_parser_buffer_ = buffer;
}
inline http2::http2_state* Environment::http2_state() const {
return http2_state_;
}
inline void Environment::set_http2_state(http2::http2_state* buffer) {
CHECK_EQ(http2_state_, nullptr); // Should be set only once.
http2_state_ = buffer;
}
inline double* Environment::fs_stats_field_array() const {
return fs_stats_field_array_;
}
inline void Environment::set_fs_stats_field_array(double* fields) {
CHECK_EQ(fs_stats_field_array_, nullptr); // Should be set only once.
fs_stats_field_array_ = fields;
}
inline performance::performance_state* Environment::performance_state() {
return performance_state_;
}
inline std::map<std::string, uint64_t>* Environment::performance_marks() {
return &performance_marks_;
}
inline IsolateData* Environment::isolate_data() const {
return isolate_data_;
}
inline void Environment::ThrowError(const char* errmsg) {
ThrowError(v8::Exception::Error, errmsg);
}
inline void Environment::ThrowTypeError(const char* errmsg) {
ThrowError(v8::Exception::TypeError, errmsg);
}
inline void Environment::ThrowRangeError(const char* errmsg) {
ThrowError(v8::Exception::RangeError, errmsg);
}
inline void Environment::ThrowError(
v8::Local<v8::Value> (*fun)(v8::Local<v8::String>),
const char* errmsg) {
v8::HandleScope handle_scope(isolate());
isolate()->ThrowException(fun(OneByteString(isolate(), errmsg)));
}
inline void Environment::ThrowErrnoException(int errorno,
const char* syscall,
const char* message,
const char* path) {
isolate()->ThrowException(
ErrnoException(isolate(), errorno, syscall, message, path));
}
inline void Environment::ThrowUVException(int errorno,
const char* syscall,
const char* message,
const char* path,
const char* dest) {
isolate()->ThrowException(
UVException(isolate(), errorno, syscall, message, path, dest));
}
inline v8::Local<v8::FunctionTemplate>
Environment::NewFunctionTemplate(v8::FunctionCallback callback,
v8::Local<v8::Signature> signature) {
v8::Local<v8::External> external = as_external();
return v8::FunctionTemplate::New(isolate(), callback, external, signature);
}
inline void Environment::SetMethod(v8::Local<v8::Object> that,
const char* name,
v8::FunctionCallback callback) {
v8::Local<v8::Function> function =
NewFunctionTemplate(callback)->GetFunction();
// kInternalized strings are created in the old space.
const v8::NewStringType type = v8::NewStringType::kInternalized;
v8::Local<v8::String> name_string =
v8::String::NewFromUtf8(isolate(), name, type).ToLocalChecked();
that->Set(name_string, function);
function->SetName(name_string); // NODE_SET_METHOD() compatibility.
}
inline void Environment::SetProtoMethod(v8::Local<v8::FunctionTemplate> that,
const char* name,
v8::FunctionCallback callback) {
v8::Local<v8::Signature> signature = v8::Signature::New(isolate(), that);
v8::Local<v8::FunctionTemplate> t = NewFunctionTemplate(callback, signature);
// kInternalized strings are created in the old space.
const v8::NewStringType type = v8::NewStringType::kInternalized;
v8::Local<v8::String> name_string =
v8::String::NewFromUtf8(isolate(), name, type).ToLocalChecked();
that->PrototypeTemplate()->Set(name_string, t);
t->SetClassName(name_string); // NODE_SET_PROTOTYPE_METHOD() compatibility.
}
inline void Environment::SetTemplateMethod(v8::Local<v8::FunctionTemplate> that,
const char* name,
v8::FunctionCallback callback) {
v8::Local<v8::FunctionTemplate> t = NewFunctionTemplate(callback);
// kInternalized strings are created in the old space.
const v8::NewStringType type = v8::NewStringType::kInternalized;
v8::Local<v8::String> name_string =
v8::String::NewFromUtf8(isolate(), name, type).ToLocalChecked();
that->Set(name_string, t);
t->SetClassName(name_string); // NODE_SET_METHOD() compatibility.
}
#define VP(PropertyName, StringValue) V(v8::Private, PropertyName)
#define VS(PropertyName, StringValue) V(v8::String, PropertyName)
#define V(TypeName, PropertyName) \
inline \
v8::Local<TypeName> IsolateData::PropertyName(v8::Isolate* isolate) const { \
/* Strings are immutable so casting away const-ness here is okay. */ \
return const_cast<IsolateData*>(this)->PropertyName ## _.Get(isolate); \
}
PER_ISOLATE_PRIVATE_SYMBOL_PROPERTIES(VP)
PER_ISOLATE_STRING_PROPERTIES(VS)
#undef V
#undef VS
#undef VP
#define VP(PropertyName, StringValue) V(v8::Private, PropertyName)
#define VS(PropertyName, StringValue) V(v8::String, PropertyName)
#define V(TypeName, PropertyName) \
inline v8::Local<TypeName> Environment::PropertyName() const { \
return isolate_data()->PropertyName(isolate()); \
}
PER_ISOLATE_PRIVATE_SYMBOL_PROPERTIES(VP)
PER_ISOLATE_STRING_PROPERTIES(VS)
#undef V
#undef VS
#undef VP
#define V(PropertyName, TypeName) \
inline v8::Local<TypeName> Environment::PropertyName() const { \
return StrongPersistentToLocal(PropertyName ## _); \
} \
inline void Environment::set_ ## PropertyName(v8::Local<TypeName> value) { \
PropertyName ## _.Reset(isolate(), value); \
}
ENVIRONMENT_STRONG_PERSISTENT_PROPERTIES(V)
#undef V
} // namespace node
#endif // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
#endif // SRC_ENV_INL_H_
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