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src: refactor bootstrap to use bootstrap object
Backport-PR-URL: #21798 PR-URL: #20917 Reviewed-By: Gus Caplan <[email protected]> Reviewed-By: Michaël Zasso <[email protected]> Reviewed-By: Ruben Bridgewater <[email protected]> Reviewed-By: Ben Noordhuis <[email protected]> Reviewed-By: Joyee Cheung <[email protected]> Reviewed-By: Refael Ackermann <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,97 @@ | ||
| #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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