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129 lines
3.6 KiB
129 lines
3.6 KiB
// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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#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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#include "queue.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::Handle;
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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 = Unwrap<HandleWrap>(args.Holder());
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if (IsAlive(wrap)) {
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uv_ref(wrap->handle__);
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wrap->flags_ &= ~kUnref;
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}
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}
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void HandleWrap::Unref(const FunctionCallbackInfo<Value>& args) {
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HandleWrap* wrap = Unwrap<HandleWrap>(args.Holder());
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if (IsAlive(wrap)) {
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uv_unref(wrap->handle__);
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wrap->flags_ |= kUnref;
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}
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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 = Unwrap<HandleWrap>(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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CHECK_EQ(false, wrap->persistent().IsEmpty());
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uv_close(wrap->handle__, OnClose);
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wrap->handle__ = nullptr;
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if (args[0]->IsFunction()) {
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wrap->object()->Set(env->close_string(), args[0]);
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wrap->flags_ |= kCloseCallback;
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}
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}
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HandleWrap::HandleWrap(Environment* env,
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Handle<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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flags_(0),
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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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QUEUE_INSERT_TAIL(env->handle_wrap_queue(), &handle_wrap_queue_);
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}
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HandleWrap::~HandleWrap() {
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CHECK(persistent().IsEmpty());
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QUEUE_REMOVE(&handle_wrap_queue_);
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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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// The wrap object should still be there.
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CHECK_EQ(wrap->persistent().IsEmpty(), false);
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// But the handle pointer should be gone.
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CHECK_EQ(wrap->handle__, nullptr);
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HandleScope handle_scope(env->isolate());
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Context::Scope context_scope(env->context());
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Local<Object> object = wrap->object();
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if (wrap->flags_ & kCloseCallback) {
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wrap->MakeCallback(env->close_string(), 0, nullptr);
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}
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object->SetAlignedPointerInInternalField(0, nullptr);
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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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