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111 lines
2.6 KiB
111 lines
2.6 KiB
#include "handle_wrap.h"
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#include "async-wrap.h"
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#include "async-wrap-inl.h"
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#include "env.h"
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#include "env-inl.h"
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#include "util.h"
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#include "util-inl.h"
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#include "node.h"
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namespace node {
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using v8::Context;
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using v8::FunctionCallbackInfo;
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using v8::HandleScope;
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using v8::Local;
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using v8::Object;
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using v8::Value;
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void HandleWrap::Ref(const FunctionCallbackInfo<Value>& args) {
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HandleWrap* wrap;
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ASSIGN_OR_RETURN_UNWRAP(&wrap, args.Holder());
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if (IsAlive(wrap))
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uv_ref(wrap->GetHandle());
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}
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void HandleWrap::Unref(const FunctionCallbackInfo<Value>& args) {
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HandleWrap* wrap;
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ASSIGN_OR_RETURN_UNWRAP(&wrap, args.Holder());
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if (IsAlive(wrap))
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uv_unref(wrap->GetHandle());
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}
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void HandleWrap::HasRef(const FunctionCallbackInfo<Value>& args) {
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HandleWrap* wrap;
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ASSIGN_OR_RETURN_UNWRAP(&wrap, args.Holder());
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args.GetReturnValue().Set(HasRef(wrap));
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}
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void HandleWrap::Close(const FunctionCallbackInfo<Value>& args) {
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Environment* env = Environment::GetCurrent(args);
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HandleWrap* wrap;
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ASSIGN_OR_RETURN_UNWRAP(&wrap, args.Holder());
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// Guard against uninitialized handle or double close.
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if (!IsAlive(wrap))
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return;
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if (wrap->state_ != kInitialized)
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return;
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CHECK_EQ(false, wrap->persistent().IsEmpty());
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uv_close(wrap->handle_, OnClose);
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wrap->state_ = kClosing;
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if (args[0]->IsFunction()) {
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wrap->object()->Set(env->onclose_string(), args[0]);
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wrap->state_ = kClosingWithCallback;
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}
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}
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HandleWrap::HandleWrap(Environment* env,
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Local<Object> object,
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uv_handle_t* handle,
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AsyncWrap::ProviderType provider,
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AsyncWrap* parent)
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: AsyncWrap(env, object, provider, parent),
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state_(kInitialized),
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handle_(handle) {
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handle_->data = this;
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HandleScope scope(env->isolate());
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Wrap(object, this);
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env->handle_wrap_queue()->PushBack(this);
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}
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HandleWrap::~HandleWrap() {
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CHECK(persistent().IsEmpty());
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}
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void HandleWrap::OnClose(uv_handle_t* handle) {
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HandleWrap* wrap = static_cast<HandleWrap*>(handle->data);
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Environment* env = wrap->env();
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HandleScope scope(env->isolate());
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Context::Scope context_scope(env->context());
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// The wrap object should still be there.
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CHECK_EQ(wrap->persistent().IsEmpty(), false);
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CHECK(wrap->state_ >= kClosing && wrap->state_ <= kClosingWithCallback);
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const bool have_close_callback = (wrap->state_ == kClosingWithCallback);
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wrap->state_ = kClosed;
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if (have_close_callback)
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wrap->MakeCallback(env->onclose_string(), 0, nullptr);
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ClearWrap(wrap->object());
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wrap->persistent().Reset();
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delete wrap;
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}
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} // namespace node
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