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src: refactor bootstrap to use bootstrap object
Backport-PR-URL: #21798 PR-URL: #20917 Reviewed-By: Gus Caplan <me@gus.host> Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Refael Ackermann <refack@gmail.com>
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Original file line number | Diff line number | Diff line change |
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#include "node.h" | ||
#include "env-inl.h" | ||
#include "node_internals.h" | ||
#include "v8.h" | ||
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namespace node { | ||
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using v8::Array; | ||
using v8::ArrayBuffer; | ||
using v8::Function; | ||
using v8::FunctionCallbackInfo; | ||
using v8::Integer; | ||
using v8::Isolate; | ||
using v8::Local; | ||
using v8::Object; | ||
using v8::Promise; | ||
using v8::PromiseRejectMessage; | ||
using v8::Uint32Array; | ||
using v8::Value; | ||
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void SetupProcessObject(const FunctionCallbackInfo<Value>& args) { | ||
Environment* env = Environment::GetCurrent(args); | ||
CHECK(args[0]->IsFunction()); | ||
env->set_push_values_to_array_function(args[0].As<Function>()); | ||
} | ||
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void RunMicrotasks(const FunctionCallbackInfo<Value>& args) { | ||
args.GetIsolate()->RunMicrotasks(); | ||
} | ||
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void SetupNextTick(const FunctionCallbackInfo<Value>& args) { | ||
Environment* env = Environment::GetCurrent(args); | ||
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CHECK(args[0]->IsFunction()); | ||
CHECK(args[1]->IsObject()); | ||
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env->set_tick_callback_function(args[0].As<Function>()); | ||
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env->SetMethod(args[1].As<Object>(), "runMicrotasks", RunMicrotasks); | ||
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// Values use to cross communicate with processNextTick. | ||
uint32_t* const fields = env->tick_info()->fields(); | ||
uint32_t const fields_count = env->tick_info()->fields_count(); | ||
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Local<ArrayBuffer> array_buffer = | ||
ArrayBuffer::New(env->isolate(), fields, sizeof(*fields) * fields_count); | ||
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args.GetReturnValue().Set(Uint32Array::New(array_buffer, 0, fields_count)); | ||
} | ||
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void PromiseRejectCallback(PromiseRejectMessage message) { | ||
Local<Promise> promise = message.GetPromise(); | ||
Isolate* isolate = promise->GetIsolate(); | ||
Local<Value> value = message.GetValue(); | ||
Local<Integer> event = Integer::New(isolate, message.GetEvent()); | ||
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Environment* env = Environment::GetCurrent(isolate); | ||
Local<Function> callback = env->promise_reject_function(); | ||
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if (value.IsEmpty()) | ||
value = Undefined(isolate); | ||
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Local<Value> args[] = { event, promise, value }; | ||
Local<Object> process = env->process_object(); | ||
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callback->Call(process, arraysize(args), args); | ||
} | ||
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void SetupPromises(const FunctionCallbackInfo<Value>& args) { | ||
Environment* env = Environment::GetCurrent(args); | ||
Isolate* isolate = env->isolate(); | ||
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CHECK(args[0]->IsFunction()); | ||
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isolate->SetPromiseRejectCallback(PromiseRejectCallback); | ||
env->set_promise_reject_function(args[0].As<Function>()); | ||
} | ||
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#define BOOTSTRAP_METHOD(name, fn) env->SetMethod(bootstrapper, #name, fn) | ||
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// The Bootstrapper object is an ephemeral object that is used only during | ||
// the bootstrap process of the Node.js environment. A reference to the | ||
// bootstrap object must not be kept around after the bootstrap process | ||
// completes so that it can be gc'd as soon as possible. | ||
void SetupBootstrapObject(Environment* env, | ||
Local<Object> bootstrapper) { | ||
BOOTSTRAP_METHOD(_setupProcessObject, SetupProcessObject); | ||
BOOTSTRAP_METHOD(_setupNextTick, SetupNextTick); | ||
BOOTSTRAP_METHOD(_setupPromises, SetupPromises); | ||
BOOTSTRAP_METHOD(_cpuUsage, CPUUsage); | ||
BOOTSTRAP_METHOD(_hrtime, Hrtime); | ||
BOOTSTRAP_METHOD(_memoryUsage, MemoryUsage); | ||
BOOTSTRAP_METHOD(_rawDebug, RawDebug); | ||
} | ||
#undef BOOTSTRAP_METHOD | ||
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} // namespace node |
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