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tag: v0.11.5
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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 "node.h"
#include "queue.h"
namespace node {
using v8::FunctionCallbackInfo;
using v8::Handle;
using v8::HandleScope;
using v8::Local;
using v8::Object;
using v8::String;
using v8::Value;
// defined in node.cc
extern QUEUE handle_wrap_queue;
static Cached<String> close_sym;
void HandleWrap::Initialize(Handle<Object> target) {
/* Doesn't do anything at the moment. */
}
void HandleWrap::Ref(const FunctionCallbackInfo<Value>& args) {
HandleScope scope(node_isolate);
UNWRAP_NO_ABORT(HandleWrap)
if (wrap != NULL && wrap->handle__ != NULL) {
uv_ref(wrap->handle__);
wrap->flags_ &= ~kUnref;
}
}
void HandleWrap::Unref(const FunctionCallbackInfo<Value>& args) {
HandleScope scope(node_isolate);
UNWRAP_NO_ABORT(HandleWrap)
if (wrap != NULL && wrap->handle__ != NULL) {
uv_unref(wrap->handle__);
wrap->flags_ |= kUnref;
}
}
void HandleWrap::Close(const FunctionCallbackInfo<Value>& args) {
HandleScope scope(node_isolate);
HandleWrap *wrap = static_cast<HandleWrap*>(
args.This()->GetAlignedPointerFromInternalField(0));
// guard against uninitialized handle or double close
if (wrap == NULL || wrap->handle__ == NULL) return;
assert(!wrap->persistent().IsEmpty());
uv_close(wrap->handle__, OnClose);
wrap->handle__ = NULL;
if (args[0]->IsFunction()) {
if (close_sym.IsEmpty() == true) close_sym = String::New("close");
wrap->object()->Set(close_sym, args[0]);
wrap->flags_ |= kCloseCallback;
}
}
HandleWrap::HandleWrap(Handle<Object> object, uv_handle_t* h) {
flags_ = 0;
handle__ = h;
handle__->data = this;
HandleScope scope(node_isolate);
assert(persistent().IsEmpty());
assert(object->InternalFieldCount() > 0);
persistent().Reset(node_isolate, object);
object->SetAlignedPointerInInternalField(0, this);
QUEUE_INSERT_TAIL(&handle_wrap_queue, &handle_wrap_queue_);
}
HandleWrap::~HandleWrap() {
assert(persistent().IsEmpty());
QUEUE_REMOVE(&handle_wrap_queue_);
}
void HandleWrap::OnClose(uv_handle_t* handle) {
HandleWrap* wrap = static_cast<HandleWrap*>(handle->data);
// The wrap object should still be there.
assert(wrap->persistent().IsEmpty() == false);
// But the handle pointer should be gone.
assert(wrap->handle__ == NULL);
HandleScope scope(node_isolate);
Local<Object> object = wrap->object();
if (wrap->flags_ & kCloseCallback) {
assert(close_sym.IsEmpty() == false);
MakeCallback(object, close_sym, 0, NULL);
}
object->SetAlignedPointerInInternalField(0, NULL);
wrap->persistent().Dispose();
delete wrap;
}
} // namespace node
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