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// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
#include "handle_wrap.h"
#include "async_wrap-inl.h"
#include "env-inl.h"
#include "util-inl.h"
#include "node.h"
namespace node {
using v8::Context;
using v8::FunctionCallbackInfo;
using v8::FunctionTemplate;
using v8::HandleScope;
using v8::Local;
using v8::Object;
using v8::Value;
void HandleWrap::Ref(const FunctionCallbackInfo<Value>& args) {
HandleWrap* wrap;
ASSIGN_OR_RETURN_UNWRAP(&wrap, args.Holder());
if (IsAlive(wrap))
uv_ref(wrap->GetHandle());
}
void HandleWrap::Unref(const FunctionCallbackInfo<Value>& args) {
HandleWrap* wrap;
ASSIGN_OR_RETURN_UNWRAP(&wrap, args.Holder());
if (IsAlive(wrap))
uv_unref(wrap->GetHandle());
}
void HandleWrap::HasRef(const FunctionCallbackInfo<Value>& args) {
HandleWrap* wrap;
ASSIGN_OR_RETURN_UNWRAP(&wrap, args.Holder());
args.GetReturnValue().Set(HasRef(wrap));
}
void HandleWrap::Close(const FunctionCallbackInfo<Value>& args) {
HandleWrap* wrap;
ASSIGN_OR_RETURN_UNWRAP(&wrap, args.Holder());
wrap->Close(args[0]);
}
void HandleWrap::Close(Local<Value> close_callback) {
if (state_ != kInitialized)
return;
uv_close(handle_, OnClose);
state_ = kClosing;
if (!close_callback.IsEmpty() && close_callback->IsFunction() &&
!persistent().IsEmpty()) {
object()->Set(env()->context(),
env()->handle_onclose_symbol(),
close_callback).Check();
}
}
void HandleWrap::MakeWeak() {
persistent().SetWeak(
this,
[](const v8::WeakCallbackInfo<HandleWrap>& data) {
HandleWrap* handle_wrap = data.GetParameter();
handle_wrap->persistent().Reset();
handle_wrap->Close();
}, v8::WeakCallbackType::kParameter);
}
void HandleWrap::MarkAsInitialized() {
env()->handle_wrap_queue()->PushBack(this);
state_ = kInitialized;
}
void HandleWrap::MarkAsUninitialized() {
handle_wrap_queue_.Remove();
state_ = kClosed;
}
HandleWrap::HandleWrap(Environment* env,
Local<Object> object,
uv_handle_t* handle,
AsyncWrap::ProviderType provider)
: AsyncWrap(env, object, provider),
state_(kInitialized),
handle_(handle) {
handle_->data = this;
HandleScope scope(env->isolate());
env->handle_wrap_queue()->PushBack(this);
}
void HandleWrap::OnClose(uv_handle_t* handle) {
std::unique_ptr<HandleWrap> wrap { static_cast<HandleWrap*>(handle->data) };
Environment* env = wrap->env();
HandleScope scope(env->isolate());
Context::Scope context_scope(env->context());
CHECK_EQ(wrap->state_, kClosing);
wrap->state_ = kClosed;
wrap->OnClose();
if (!wrap->persistent().IsEmpty() &&
wrap->object()->Has(env->context(), env->handle_onclose_symbol())
.FromMaybe(false)) {
wrap->MakeCallback(env->handle_onclose_symbol(), 0, nullptr);
}
}
Local<FunctionTemplate> HandleWrap::GetConstructorTemplate(Environment* env) {
Local<FunctionTemplate> tmpl = env->handle_wrap_ctor_template();
if (tmpl.IsEmpty()) {
tmpl = env->NewFunctionTemplate(nullptr);
tmpl->SetClassName(FIXED_ONE_BYTE_STRING(env->isolate(), "HandleWrap"));
tmpl->Inherit(AsyncWrap::GetConstructorTemplate(env));
env->SetProtoMethod(tmpl, "close", HandleWrap::Close);
env->SetProtoMethodNoSideEffect(tmpl, "hasRef", HandleWrap::HasRef);
env->SetProtoMethod(tmpl, "ref", HandleWrap::Ref);
env->SetProtoMethod(tmpl, "unref", HandleWrap::Unref);
env->set_handle_wrap_ctor_template(tmpl);
}
return tmpl;
}
} // namespace node