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#ifndef SRC_STREAM_BASE_INL_H_
#define SRC_STREAM_BASE_INL_H_
#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
#include "stream_base.h"
#include "node.h"
#include "env-inl.h"
#include "v8.h"
namespace node {
using v8::AccessorSignature;
using v8::External;
using v8::FunctionCallbackInfo;
using v8::FunctionTemplate;
using v8::HandleScope;
using v8::Local;
using v8::Object;
using v8::PropertyAttribute;
using v8::PropertyCallbackInfo;
using v8::String;
using v8::Value;
using AsyncHooks = Environment::AsyncHooks;
template <class Base>
void StreamBase::AddMethods(Environment* env,
Local<FunctionTemplate> t,
int flags) {
HandleScope scope(env->isolate());
enum PropertyAttribute attributes =
static_cast<PropertyAttribute>(
v8::ReadOnly | v8::DontDelete | v8::DontEnum);
Local<AccessorSignature> signature =
AccessorSignature::New(env->isolate(), t);
t->PrototypeTemplate()->SetAccessor(env->fd_string(),
GetFD<Base>,
nullptr,
env->as_external(),
v8::DEFAULT,
attributes,
signature);
t->PrototypeTemplate()->SetAccessor(env->external_stream_string(),
GetExternal<Base>,
nullptr,
env->as_external(),
v8::DEFAULT,
attributes,
signature);
t->PrototypeTemplate()->SetAccessor(env->bytes_read_string(),
GetBytesRead<Base>,
nullptr,
env->as_external(),
v8::DEFAULT,
attributes,
signature);
env->SetProtoMethod(t, "readStart", JSMethod<Base, &StreamBase::ReadStart>);
env->SetProtoMethod(t, "readStop", JSMethod<Base, &StreamBase::ReadStop>);
if ((flags & kFlagNoShutdown) == 0)
env->SetProtoMethod(t, "shutdown", JSMethod<Base, &StreamBase::Shutdown>);
if ((flags & kFlagHasWritev) != 0)
env->SetProtoMethod(t, "writev", JSMethod<Base, &StreamBase::Writev>);
env->SetProtoMethod(t,
"writeBuffer",
JSMethod<Base, &StreamBase::WriteBuffer>);
env->SetProtoMethod(t,
"writeAsciiString",
JSMethod<Base, &StreamBase::WriteString<ASCII> >);
env->SetProtoMethod(t,
"writeUtf8String",
JSMethod<Base, &StreamBase::WriteString<UTF8> >);
env->SetProtoMethod(t,
"writeUcs2String",
JSMethod<Base, &StreamBase::WriteString<UCS2> >);
env->SetProtoMethod(t,
"writeLatin1String",
JSMethod<Base, &StreamBase::WriteString<LATIN1> >);
}
template <class Base>
void StreamBase::GetFD(Local<String> key,
const PropertyCallbackInfo<Value>& args) {
// Mimic implementation of StreamBase::GetFD() and UDPWrap::GetFD().
Base* handle;
ASSIGN_OR_RETURN_UNWRAP(&handle,
args.This(),
args.GetReturnValue().Set(UV_EINVAL));
StreamBase* wrap = static_cast<StreamBase*>(handle);
if (!wrap->IsAlive())
return args.GetReturnValue().Set(UV_EINVAL);
args.GetReturnValue().Set(wrap->GetFD());
}
template <class Base>
void StreamBase::GetBytesRead(Local<String> key,
const PropertyCallbackInfo<Value>& args) {
// The handle instance hasn't been set. So no bytes could have been read.
Base* handle;
ASSIGN_OR_RETURN_UNWRAP(&handle,
args.This(),
args.GetReturnValue().Set(0));
StreamBase* wrap = static_cast<StreamBase*>(handle);
// uint64_t -> double. 53bits is enough for all real cases.
args.GetReturnValue().Set(static_cast<double>(wrap->bytes_read_));
}
template <class Base>
void StreamBase::GetExternal(Local<String> key,
const PropertyCallbackInfo<Value>& args) {
Base* handle;
ASSIGN_OR_RETURN_UNWRAP(&handle, args.This());
StreamBase* wrap = static_cast<StreamBase*>(handle);
Local<External> ext = External::New(args.GetIsolate(), wrap);
args.GetReturnValue().Set(ext);
}
template <class Base,
int (StreamBase::*Method)(const FunctionCallbackInfo<Value>& args)>
void StreamBase::JSMethod(const FunctionCallbackInfo<Value>& args) {
Base* handle;
ASSIGN_OR_RETURN_UNWRAP(&handle, args.Holder());
StreamBase* wrap = static_cast<StreamBase*>(handle);
if (!wrap->IsAlive())
return args.GetReturnValue().Set(UV_EINVAL);
AsyncHooks::InitScope init_scope(handle->env(), handle->get_async_id());
args.GetReturnValue().Set((wrap->*Method)(args));
}
WriteWrap* WriteWrap::New(Environment* env,
Local<Object> obj,
StreamBase* wrap,
DoneCb cb,
size_t extra) {
size_t storage_size = ROUND_UP(sizeof(WriteWrap), kAlignSize) + extra;
char* storage = new char[storage_size];
return new(storage) WriteWrap(env, obj, wrap, cb, storage_size);
}
void WriteWrap::Dispose() {
this->~WriteWrap();
delete[] reinterpret_cast<char*>(this);
}
char* WriteWrap::Extra(size_t offset) {
return reinterpret_cast<char*>(this) +
ROUND_UP(sizeof(*this), kAlignSize) +
offset;
}
size_t WriteWrap::ExtraSize() const {
return storage_size_ - ROUND_UP(sizeof(*this), kAlignSize);
}
} // namespace node
#endif // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
#endif // SRC_STREAM_BASE_INL_H_
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