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Mini Shell
Mini Shell
#include <node.h>
#include <v8.h>
#include <uv.h>
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
using v8::Context;
using v8::Function;
using v8::HandleScope;
using v8::Isolate;
using v8::Local;
using v8::MaybeLocal;
using v8::Object;
using v8::String;
using v8::Value;
size_t count = 0;
struct statically_allocated {
statically_allocated() {
assert(count == 0);
printf("ctor ");
}
~statically_allocated() {
assert(count == 0);
printf("dtor ");
}
} var;
void Dummy(void*) {
assert(0);
}
void Cleanup(void* str) {
printf("%s ", static_cast<const char*>(str));
// Check that calling into JS fails.
Isolate* isolate = Isolate::GetCurrent();
HandleScope handle_scope(isolate);
assert(isolate->InContext());
Local<Context> context = isolate->GetCurrentContext();
MaybeLocal<Value> call_result =
context->Global()->Get(
context, String::NewFromUtf8Literal(isolate, "Object"))
.ToLocalChecked().As<Function>()->Call(
context, v8::Null(isolate), 0, nullptr);
assert(call_result.IsEmpty());
}
void Initialize(Local<Object> exports,
Local<Value> module,
Local<Context> context) {
node::AddEnvironmentCleanupHook(
context->GetIsolate(),
Cleanup,
const_cast<void*>(static_cast<const void*>("cleanup")));
node::AddEnvironmentCleanupHook(context->GetIsolate(), Dummy, nullptr);
node::RemoveEnvironmentCleanupHook(context->GetIsolate(), Dummy, nullptr);
if (getenv("addExtraItemToEventLoop") != nullptr) {
// Add an item to the event loop that we do not clean up in order to make
// sure that for the main thread, this addon's memory persists even after
// the Environment instance has been destroyed.
static uv_async_t extra_async;
uv_loop_t* loop = node::GetCurrentEventLoop(context->GetIsolate());
int err = uv_async_init(loop, &extra_async, [](uv_async_t*) {});
assert(err == 0);
uv_unref(reinterpret_cast<uv_handle_t*>(&extra_async));
}
}
NODE_MODULE_CONTEXT_AWARE(NODE_GYP_MODULE_NAME, Initialize)
Zerion Mini Shell 1.0