node/src/handle_wrap.cc

114 lines
2.2 KiB
C++

#include <node.h>
#include <handle_wrap.h>
namespace node {
using v8::Object;
using v8::Handle;
using v8::Local;
using v8::Persistent;
using v8::Value;
using v8::HandleScope;
using v8::FunctionTemplate;
using v8::String;
using v8::Function;
using v8::TryCatch;
using v8::Context;
using v8::Arguments;
using v8::Integer;
#define UNWRAP \
assert(!args.Holder().IsEmpty()); \
assert(args.Holder()->InternalFieldCount() > 0); \
HandleWrap* wrap = \
static_cast<HandleWrap*>(args.Holder()->GetPointerFromInternalField(0)); \
if (!wrap) { \
SetErrno(UV_EBADF); \
return scope.Close(Integer::New(-1)); \
}
void HandleWrap::Initialize(Handle<Object> target) {
/* Doesn't do anything at the moment. */
}
// This function is used only for process.stdout. It's put here instead of
// in TTYWrap because here we have access to the Close binding.
Handle<Value> HandleWrap::Unref(const Arguments& args) {
HandleScope scope;
UNWRAP
// Calling this function twice should never happen.
assert(wrap->unref == false);
wrap->unref = true;
uv_unref(uv_default_loop());
return v8::Undefined();
}
Handle<Value> HandleWrap::Close(const Arguments& args) {
HandleScope scope;
UNWRAP
assert(!wrap->object_.IsEmpty());
uv_close(wrap->handle__, OnClose);
if (wrap->unref) {
uv_ref(uv_default_loop());
wrap->unref = false;
}
wrap->StateChange();
return v8::Null();
}
HandleWrap::HandleWrap(Handle<Object> object, uv_handle_t* h) {
unref = false;
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);
}
void HandleWrap::SetHandle(uv_handle_t* h) {
handle__ = h;
h->data = this;
}
HandleWrap::~HandleWrap() {
assert(object_.IsEmpty());
}
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);
wrap->object_->SetPointerInInternalField(0, NULL);
wrap->object_.Dispose();
wrap->object_.Clear();
delete wrap;
}
} // namespace node