Current File : //proc/self/root/usr/src/node-v0.10.4/src/handle_wrap.cc
// 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 "node.h"
#include "ngx-queue.h"
#include "handle_wrap.h"
namespace node {
using v8::Arguments;
using v8::Array;
using v8::Context;
using v8::Function;
using v8::FunctionTemplate;
using v8::Handle;
using v8::HandleScope;
using v8::Integer;
using v8::Local;
using v8::Object;
using v8::Persistent;
using v8::String;
using v8::TryCatch;
using v8::Undefined;
using v8::Value;
// defined in node.cc
extern ngx_queue_t handle_wrap_queue;
static Persistent<String> close_sym;
void HandleWrap::Initialize(Handle<Object> target) {
/* Doesn't do anything at the moment. */
}
Handle<Value> HandleWrap::Ref(const Arguments& args) {
HandleScope scope;
UNWRAP_NO_ABORT(HandleWrap)
if (wrap) {
uv_ref(wrap->handle__);
wrap->flags_ &= ~kUnref;
}
return v8::Undefined();
}
Handle<Value> HandleWrap::Unref(const Arguments& args) {
HandleScope scope;
UNWRAP_NO_ABORT(HandleWrap)
if (wrap) {
uv_unref(wrap->handle__);
wrap->flags_ |= kUnref;
}
return v8::Undefined();
}
Handle<Value> HandleWrap::Close(const Arguments& args) {
HandleScope scope;
HandleWrap *wrap = static_cast<HandleWrap*>(
args.Holder()->GetPointerFromInternalField(0));
// guard against uninitialized handle or double close
if (wrap == NULL || wrap->handle__ == NULL) {
return Undefined();
}
assert(!wrap->object_.IsEmpty());
uv_close(wrap->handle__, OnClose);
wrap->handle__ = NULL;
if (args[0]->IsFunction()) {
if (close_sym.IsEmpty() == true) close_sym = NODE_PSYMBOL("close");
wrap->object_->Set(close_sym, args[0]);
wrap->flags_ |= kCloseCallback;
}
return Undefined();
}
HandleWrap::HandleWrap(Handle<Object> object, uv_handle_t* h) {
flags_ = 0;
handle__ = h;
if (h) {
h->data = this;
}
HandleScope scope;
assert(object_.IsEmpty());
assert(object->InternalFieldCount() > 0);
object_ = v8::Persistent<v8::Object>::New(object);
object_->SetPointerInInternalField(0, this);
ngx_queue_insert_tail(&handle_wrap_queue, &handle_wrap_queue_);
}
void HandleWrap::SetHandle(uv_handle_t* h) {
handle__ = h;
h->data = this;
}
HandleWrap::~HandleWrap() {
assert(object_.IsEmpty());
ngx_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->object_.IsEmpty() == false);
// But the handle pointer should be gone.
assert(wrap->handle__ == NULL);
if (wrap->flags_ & kCloseCallback) {
assert(close_sym.IsEmpty() == false);
MakeCallback(wrap->object_, close_sym, 0, NULL);
}
wrap->object_->SetPointerInInternalField(0, NULL);
wrap->object_.Dispose();
wrap->object_.Clear();
delete wrap;
}
} // namespace node
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