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#include "pipe_wrap.h"
#include "async-wrap.h"
#include "connection_wrap.h"
#include "env.h"
#include "env-inl.h"
#include "handle_wrap.h"
#include "node.h"
#include "node_buffer.h"
#include "node_wrap.h"
#include "connect_wrap.h"
#include "stream_wrap.h"
#include "util-inl.h"
#include "util.h"
namespace node {
using v8::Boolean;
using v8::Context;
using v8::EscapableHandleScope;
using v8::External;
using v8::Function;
using v8::FunctionCallbackInfo;
using v8::FunctionTemplate;
using v8::HandleScope;
using v8::Integer;
using v8::Local;
using v8::Object;
using v8::String;
using v8::Value;
Local<Object> PipeWrap::Instantiate(Environment* env, AsyncWrap* parent) {
EscapableHandleScope handle_scope(env->isolate());
CHECK_EQ(false, env->pipe_constructor_template().IsEmpty());
Local<Function> constructor = env->pipe_constructor_template()->GetFunction();
CHECK_EQ(false, constructor.IsEmpty());
Local<Value> ptr = External::New(env->isolate(), parent);
Local<Object> instance =
constructor->NewInstance(env->context(), 1, &ptr).ToLocalChecked();
return handle_scope.Escape(instance);
}
void PipeWrap::Initialize(Local<Object> target,
Local<Value> unused,
Local<Context> context) {
Environment* env = Environment::GetCurrent(context);
Local<FunctionTemplate> t = env->NewFunctionTemplate(New);
t->SetClassName(FIXED_ONE_BYTE_STRING(env->isolate(), "Pipe"));
t->InstanceTemplate()->SetInternalFieldCount(1);
env->SetProtoMethod(t, "close", HandleWrap::Close);
env->SetProtoMethod(t, "unref", HandleWrap::Unref);
env->SetProtoMethod(t, "ref", HandleWrap::Ref);
env->SetProtoMethod(t, "hasRef", HandleWrap::HasRef);
StreamWrap::AddMethods(env, t);
env->SetProtoMethod(t, "bind", Bind);
env->SetProtoMethod(t, "listen", Listen);
env->SetProtoMethod(t, "connect", Connect);
env->SetProtoMethod(t, "open", Open);
#ifdef _WIN32
env->SetProtoMethod(t, "setPendingInstances", SetPendingInstances);
#endif
target->Set(FIXED_ONE_BYTE_STRING(env->isolate(), "Pipe"), t->GetFunction());
env->set_pipe_constructor_template(t);
// Create FunctionTemplate for PipeConnectWrap.
auto constructor = [](const FunctionCallbackInfo<Value>& args) {
CHECK(args.IsConstructCall());
};
auto cwt = FunctionTemplate::New(env->isolate(), constructor);
cwt->InstanceTemplate()->SetInternalFieldCount(1);
cwt->SetClassName(FIXED_ONE_BYTE_STRING(env->isolate(), "PipeConnectWrap"));
target->Set(FIXED_ONE_BYTE_STRING(env->isolate(), "PipeConnectWrap"),
cwt->GetFunction());
}
void PipeWrap::New(const FunctionCallbackInfo<Value>& args) {
// This constructor should not be exposed to public javascript.
// Therefore we assert that we are not trying to call this as a
// normal function.
CHECK(args.IsConstructCall());
Environment* env = Environment::GetCurrent(args);
if (args[0]->IsExternal()) {
void* ptr = args[0].As<External>()->Value();
new PipeWrap(env, args.This(), false, static_cast<AsyncWrap*>(ptr));
} else {
new PipeWrap(env, args.This(), args[0]->IsTrue(), nullptr);
}
}
PipeWrap::PipeWrap(Environment* env,
Local<Object> object,
bool ipc,
AsyncWrap* parent)
: ConnectionWrap(env,
object,
AsyncWrap::PROVIDER_PIPEWRAP,
parent) {
int r = uv_pipe_init(env->event_loop(), &handle_, ipc);
CHECK_EQ(r, 0); // How do we proxy this error up to javascript?
// Suggestion: uv_pipe_init() returns void.
UpdateWriteQueueSize();
}
void PipeWrap::Bind(const FunctionCallbackInfo<Value>& args) {
PipeWrap* wrap;
ASSIGN_OR_RETURN_UNWRAP(&wrap, args.Holder());
node::Utf8Value name(args.GetIsolate(), args[0]);
int err = uv_pipe_bind(&wrap->handle_, *name);
args.GetReturnValue().Set(err);
}
#ifdef _WIN32
void PipeWrap::SetPendingInstances(const FunctionCallbackInfo<Value>& args) {
PipeWrap* wrap;
ASSIGN_OR_RETURN_UNWRAP(&wrap, args.Holder());
int instances = args[0]->Int32Value();
uv_pipe_pending_instances(&wrap->handle_, instances);
}
#endif
void PipeWrap::Listen(const FunctionCallbackInfo<Value>& args) {
PipeWrap* wrap;
ASSIGN_OR_RETURN_UNWRAP(&wrap, args.Holder());
int backlog = args[0]->Int32Value();
int err = uv_listen(reinterpret_cast<uv_stream_t*>(&wrap->handle_),
backlog,
OnConnection);
args.GetReturnValue().Set(err);
}
// TODO(bnoordhuis) Maybe share this with TCPWrap?
void PipeWrap::AfterConnect(uv_connect_t* req, int status) {
ConnectWrap* req_wrap = static_cast<ConnectWrap*>(req->data);
PipeWrap* wrap = static_cast<PipeWrap*>(req->handle->data);
CHECK_EQ(req_wrap->env(), wrap->env());
Environment* env = wrap->env();
HandleScope handle_scope(env->isolate());
Context::Scope context_scope(env->context());
// The wrap and request objects should still be there.
CHECK_EQ(req_wrap->persistent().IsEmpty(), false);
CHECK_EQ(wrap->persistent().IsEmpty(), false);
bool readable, writable;
if (status) {
readable = writable = 0;
} else {
readable = uv_is_readable(req->handle) != 0;
writable = uv_is_writable(req->handle) != 0;
}
Local<Object> req_wrap_obj = req_wrap->object();
Local<Value> argv[5] = {
Integer::New(env->isolate(), status),
wrap->object(),
req_wrap_obj,
Boolean::New(env->isolate(), readable),
Boolean::New(env->isolate(), writable)
};
req_wrap->MakeCallback(env->oncomplete_string(), arraysize(argv), argv);
delete req_wrap;
}
void PipeWrap::Open(const FunctionCallbackInfo<Value>& args) {
Environment* env = Environment::GetCurrent(args);
PipeWrap* wrap;
ASSIGN_OR_RETURN_UNWRAP(&wrap, args.Holder());
int fd = args[0]->Int32Value();
int err = uv_pipe_open(&wrap->handle_, fd);
if (err != 0)
env->isolate()->ThrowException(UVException(err, "uv_pipe_open"));
}
void PipeWrap::Connect(const FunctionCallbackInfo<Value>& args) {
Environment* env = Environment::GetCurrent(args);
PipeWrap* wrap;
ASSIGN_OR_RETURN_UNWRAP(&wrap, args.Holder());
CHECK(args[0]->IsObject());
CHECK(args[1]->IsString());
Local<Object> req_wrap_obj = args[0].As<Object>();
node::Utf8Value name(env->isolate(), args[1]);
ConnectWrap* req_wrap =
new ConnectWrap(env, req_wrap_obj, AsyncWrap::PROVIDER_PIPECONNECTWRAP);
uv_pipe_connect(&req_wrap->req_,
&wrap->handle_,
*name,
AfterConnect);
req_wrap->Dispatched();
args.GetReturnValue().Set(0); // uv_pipe_connect() doesn't return errors.
}
} // namespace node
NODE_MODULE_CONTEXT_AWARE_BUILTIN(pipe_wrap, node::PipeWrap::Initialize)
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