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node-api: fix shutdown crashes #38492

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mhdawson wants to merge 6 commits into from
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node-api: fix shutdown crashes #38492

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02f2879
node-api: fix shutdown crashes
mhdawson Apr 30, 2021
d39704b
squash: add other place Finalization is deferred
mhdawson May 1, 2021
4033914
squash: ref/unref when using SetImmediate
mhdawson May 2, 2021
0eeee2f
squash: fixup spacing
mhdawson May 2, 2021
f42e1f4
squash: refactor - minimal change
mhdawson May 7, 2021
558a765
squash: rename to EnvRefHolder
mhdawson May 13, 2021
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squash: ref/unref when using SetImmediate
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@mhdawson
mhdawson committed May 2, 2021
commit 403391496963b1a40d2ad6d974397c6dc7731bcf
40 changes: 26 additions & 14 deletions src/node_api.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -40,12 +40,16 @@ struct node_napi_env__ : public napi_env__ {
void CallFinalizer(napi_finalize cb, void* data, void* hint) override {
napi_env env = static_cast<napi_env>(this);
if (!env->isEnvTeardown()) {
env->Ref();
node_env()->SetImmediate([=](node::Environment* node_env) {
v8::HandleScope handle_scope(env->isolate);
v8::Context::Scope context_scope(env->context());
env->CallIntoModule([&](napi_env env) {
cb(env, data, hint);
});
{
v8::HandleScope handle_scope(env->isolate);
v8::Context::Scope context_scope(env->context());
env->CallIntoModule([&](napi_env env) {
cb(env, data, hint);
});
}
env->Unref();
});
} else {
v8::HandleScope handle_scope(env->isolate);
Expand Down Expand Up @@ -78,19 +82,27 @@ class BufferFinalizer : private Finalizer {
node::Environment* node_env =
static_cast<node_napi_env>(finalizer->_env)->node_env();
if (!finalizer->_env->isEnvTeardown()) {
finalizer->_env->Ref();
node_env->SetImmediate(
[finalizer = std::move(finalizer)](node::Environment* env) {
if (finalizer->_finalize_callback == nullptr) return;

v8::HandleScope handle_scope(finalizer->_env->isolate);
v8::Context::Scope context_scope(finalizer->_env->context());
if (finalizer->_finalize_callback == nullptr) {
finalizer->_env->Unref();
return;
}

finalizer->_env->CallIntoModule([&](napi_env env) {
finalizer->_finalize_callback(
env,
finalizer->_finalize_data,
finalizer->_finalize_hint);
});
{
v8::HandleScope handle_scope(finalizer->_env->isolate);
v8::Context::Scope context_scope(finalizer->_env->context());

finalizer->_env->CallIntoModule([&](napi_env env) {
finalizer->_finalize_callback(
env,
finalizer->_finalize_data,
finalizer->_finalize_hint);
});
}
finalizer->_env->Unref();
});
} else {
if (finalizer->_finalize_callback == nullptr) return;
Expand Down