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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::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) {
Environment* env = Environment::GetCurrent(args);
HandleWrap* wrap;
ASSIGN_OR_RETURN_UNWRAP(&wrap, args.Holder());
// Guard against uninitialized handle or double close.
if (!IsAlive(wrap))
return;
if (wrap->state_ != kInitialized)
return;
CHECK_EQ(false, wrap->persistent().IsEmpty());
uv_close(wrap->handle_, OnClose);
wrap->state_ = kClosing;
if (args[0]->IsFunction()) {
wrap->object()->Set(env->onclose_string(), args[0]);
wrap->state_ = kClosingWithCallback;
}
}
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());
Wrap(object, this);
env->handle_wrap_queue()->PushBack(this);
}
HandleWrap::~HandleWrap() {
CHECK(persistent().IsEmpty());
}
void HandleWrap::OnClose(uv_handle_t* handle) {
HandleWrap* wrap = static_cast<HandleWrap*>(handle->data);
Environment* env = wrap->env();
HandleScope scope(env->isolate());
Context::Scope context_scope(env->context());
// The wrap object should still be there.
CHECK_EQ(wrap->persistent().IsEmpty(), false);
CHECK(wrap->state_ >= kClosing && wrap->state_ <= kClosingWithCallback);
const bool have_close_callback = (wrap->state_ == kClosingWithCallback);
wrap->state_ = kClosed;
if (have_close_callback)
wrap->MakeCallback(env->onclose_string(), 0, nullptr);
ClearWrap(wrap->object());
wrap->persistent().Reset();
delete wrap;
}
} // namespace node
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