/
embedtest.cc
139 lines (114 loc) · 4.05 KB
/
embedtest.cc
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#include "node.h"
#include "uv.h"
#include <assert.h>
// Note: This file is being referred to from doc/api/embedding.md, and excerpts
// from it are included in the documentation. Try to keep these in sync.
using node::ArrayBufferAllocator;
using node::Environment;
using node::IsolateData;
using node::MultiIsolatePlatform;
using v8::Context;
using v8::HandleScope;
using v8::Isolate;
using v8::Local;
using v8::Locker;
using v8::MaybeLocal;
using v8::SealHandleScope;
using v8::V8;
using v8::Value;
static int RunNodeInstance(MultiIsolatePlatform* platform,
const std::vector<std::string>& args,
const std::vector<std::string>& exec_args);
int main(int argc, char** argv) {
argv = uv_setup_args(argc, argv);
std::vector<std::string> args(argv, argv + argc);
std::vector<std::string> exec_args;
std::vector<std::string> errors;
int exit_code = node::InitializeNodeWithArgs(&args, &exec_args, &errors);
for (const std::string& error : errors)
fprintf(stderr, "%s: %s\n", args[0].c_str(), error.c_str());
if (exit_code != 0) {
return exit_code;
}
std::unique_ptr<MultiIsolatePlatform> platform =
MultiIsolatePlatform::Create(4);
V8::InitializePlatform(platform.get());
V8::Initialize();
int ret = RunNodeInstance(platform.get(), args, exec_args);
V8::Dispose();
V8::ShutdownPlatform();
return ret;
}
int RunNodeInstance(MultiIsolatePlatform* platform,
const std::vector<std::string>& args,
const std::vector<std::string>& exec_args) {
int exit_code = 0;
uv_loop_t loop;
int ret = uv_loop_init(&loop);
if (ret != 0) {
fprintf(stderr, "%s: Failed to initialize loop: %s\n",
args[0].c_str(),
uv_err_name(ret));
return 1;
}
std::shared_ptr<ArrayBufferAllocator> allocator =
ArrayBufferAllocator::Create();
Isolate* isolate = NewIsolate(allocator, &loop, platform);
if (isolate == nullptr) {
fprintf(stderr, "%s: Failed to initialize V8 Isolate\n", args[0].c_str());
return 1;
}
{
Locker locker(isolate);
Isolate::Scope isolate_scope(isolate);
std::unique_ptr<IsolateData, decltype(&node::FreeIsolateData)> isolate_data(
node::CreateIsolateData(isolate, &loop, platform, allocator.get()),
node::FreeIsolateData);
HandleScope handle_scope(isolate);
Local<Context> context = node::NewContext(isolate);
if (context.IsEmpty()) {
fprintf(stderr, "%s: Failed to initialize V8 Context\n", args[0].c_str());
return 1;
}
Context::Scope context_scope(context);
std::unique_ptr<Environment, decltype(&node::FreeEnvironment)> env(
node::CreateEnvironment(isolate_data.get(), context, args, exec_args),
node::FreeEnvironment);
MaybeLocal<Value> loadenv_ret = node::LoadEnvironment(
env.get(),
"const publicRequire ="
" require('module').createRequire(process.cwd() + '/');"
"globalThis.require = publicRequire;"
"globalThis.embedVars = { nön_ascıı: '🏳️🌈' };"
"require('vm').runInThisContext(process.argv[1]);");
if (loadenv_ret.IsEmpty()) // There has been a JS exception.
return 1;
{
SealHandleScope seal(isolate);
bool more;
do {
uv_run(&loop, UV_RUN_DEFAULT);
platform->DrainTasks(isolate);
more = uv_loop_alive(&loop);
if (more) continue;
if (node::EmitProcessBeforeExit(env.get()).IsNothing())
break;
more = uv_loop_alive(&loop);
} while (more == true);
}
exit_code = node::EmitProcessExit(env.get()).FromMaybe(1);
node::Stop(env.get());
}
bool platform_finished = false;
platform->AddIsolateFinishedCallback(isolate, [](void* data) {
*static_cast<bool*>(data) = true;
}, &platform_finished);
platform->UnregisterIsolate(isolate);
isolate->Dispose();
// Wait until the platform has cleaned up all relevant resources.
while (!platform_finished)
uv_run(&loop, UV_RUN_ONCE);
int err = uv_loop_close(&loop);
assert(err == 0);
return exit_code;
}