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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 "pipe_wrap.h"
#include "async-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 "req_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::Handle;
using v8::HandleScope;
using v8::Integer;
using v8::Local;
using v8::Object;
using v8::PropertyAttribute;
using v8::String;
using v8::Undefined;
using v8::Value;
// TODO(bnoordhuis) share with TCPWrap?
class PipeConnectWrap : public ReqWrap<uv_connect_t> {
public:
PipeConnectWrap(Environment* env, Local<Object> req_wrap_obj);
};
PipeConnectWrap::PipeConnectWrap(Environment* env, Local<Object> req_wrap_obj)
: ReqWrap<uv_connect_t>(env, req_wrap_obj, AsyncWrap::PROVIDER_PIPEWRAP) {
Wrap(req_wrap_obj, this);
}
static void NewPipeConnectWrap(const FunctionCallbackInfo<Value>& args) {
CHECK(args.IsConstructCall());
}
uv_pipe_t* PipeWrap::UVHandle() {
return &handle_;
}
Local<Object> PipeWrap::Instantiate(Environment* env, AsyncWrap* parent) {
EscapableHandleScope handle_scope(env->isolate());
assert(!env->pipe_constructor_template().IsEmpty());
Local<Function> constructor = env->pipe_constructor_template()->GetFunction();
assert(!constructor.IsEmpty());
Local<Value> ptr = External::New(env->isolate(), parent);
Local<Object> instance = constructor->NewInstance(1, &ptr);
assert(!instance.IsEmpty());
return handle_scope.Escape(instance);
}
void PipeWrap::Initialize(Handle<Object> target,
Handle<Value> unused,
Handle<Context> context) {
Environment* env = Environment::GetCurrent(context);
Local<FunctionTemplate> t = FunctionTemplate::New(env->isolate(), New);
t->SetClassName(FIXED_ONE_BYTE_STRING(env->isolate(), "Pipe"));
t->InstanceTemplate()->SetInternalFieldCount(1);
enum PropertyAttribute attributes =
static_cast<PropertyAttribute>(v8::ReadOnly | v8::DontDelete);
t->InstanceTemplate()->SetAccessor(env->fd_string(),
StreamWrap::GetFD,
NULL,
Handle<Value>(),
v8::DEFAULT,
attributes);
NODE_SET_PROTOTYPE_METHOD(t, "close", HandleWrap::Close);
NODE_SET_PROTOTYPE_METHOD(t, "unref", HandleWrap::Unref);
NODE_SET_PROTOTYPE_METHOD(t, "ref", HandleWrap::Ref);
NODE_SET_PROTOTYPE_METHOD(t, "setBlocking", StreamWrap::SetBlocking);
NODE_SET_PROTOTYPE_METHOD(t, "readStart", StreamWrap::ReadStart);
NODE_SET_PROTOTYPE_METHOD(t, "readStop", StreamWrap::ReadStop);
NODE_SET_PROTOTYPE_METHOD(t, "shutdown", StreamWrap::Shutdown);
NODE_SET_PROTOTYPE_METHOD(t, "writeBuffer", StreamWrap::WriteBuffer);
NODE_SET_PROTOTYPE_METHOD(t,
"writeAsciiString",
StreamWrap::WriteAsciiString);
NODE_SET_PROTOTYPE_METHOD(t, "writeUtf8String", StreamWrap::WriteUtf8String);
NODE_SET_PROTOTYPE_METHOD(t, "writeUcs2String", StreamWrap::WriteUcs2String);
NODE_SET_PROTOTYPE_METHOD(t,
"writeBinaryString",
StreamWrap::WriteBinaryString);
NODE_SET_PROTOTYPE_METHOD(t, "bind", Bind);
NODE_SET_PROTOTYPE_METHOD(t, "listen", Listen);
NODE_SET_PROTOTYPE_METHOD(t, "connect", Connect);
NODE_SET_PROTOTYPE_METHOD(t, "open", Open);
#ifdef _WIN32
NODE_SET_PROTOTYPE_METHOD(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.
Local<FunctionTemplate> cwt =
FunctionTemplate::New(env->isolate(), NewPipeConnectWrap);
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.
assert(args.IsConstructCall());
Environment* env = Environment::GetCurrent(args.GetIsolate());
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(), NULL);
}
}
PipeWrap::PipeWrap(Environment* env,
Handle<Object> object,
bool ipc,
AsyncWrap* parent)
: StreamWrap(env,
object,
reinterpret_cast<uv_stream_t*>(&handle_),
AsyncWrap::PROVIDER_PIPEWRAP,
parent) {
int r = uv_pipe_init(env->event_loop(), &handle_, ipc);
assert(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) {
Environment* env = Environment::GetCurrent(args.GetIsolate());
HandleScope scope(env->isolate());
PipeWrap* wrap = Unwrap<PipeWrap>(args.Holder());
node::Utf8Value name(args[0]);
int err = uv_pipe_bind(&wrap->handle_, *name);
args.GetReturnValue().Set(err);
}
#ifdef _WIN32
void PipeWrap::SetPendingInstances(const FunctionCallbackInfo<Value>& args) {
Environment* env = Environment::GetCurrent(args.GetIsolate());
HandleScope scope(env->isolate());
PipeWrap* wrap = Unwrap<PipeWrap>(args.Holder());
int instances = args[0]->Int32Value();
uv_pipe_pending_instances(&wrap->handle_, instances);
}
#endif
void PipeWrap::Listen(const FunctionCallbackInfo<Value>& args) {
Environment* env = Environment::GetCurrent(args.GetIsolate());
HandleScope scope(env->isolate());
PipeWrap* wrap = Unwrap<PipeWrap>(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 with TCPWrap?
void PipeWrap::OnConnection(uv_stream_t* handle, int status) {
PipeWrap* pipe_wrap = static_cast<PipeWrap*>(handle->data);
assert(&pipe_wrap->handle_ == reinterpret_cast<uv_pipe_t*>(handle));
Environment* env = pipe_wrap->env();
HandleScope handle_scope(env->isolate());
Context::Scope context_scope(env->context());
// We should not be getting this callback if someone as already called
// uv_close() on the handle.
assert(pipe_wrap->persistent().IsEmpty() == false);
Local<Value> argv[] = {
Integer::New(env->isolate(), status),
Undefined(env->isolate())
};
if (status != 0) {
pipe_wrap->MakeCallback(env->onconnection_string(), ARRAY_SIZE(argv), argv);
return;
}
// Instanciate the client javascript object and handle.
Local<Object> client_obj = Instantiate(env, pipe_wrap);
// Unwrap the client javascript object.
PipeWrap* wrap = Unwrap<PipeWrap>(client_obj);
uv_stream_t* client_handle = reinterpret_cast<uv_stream_t*>(&wrap->handle_);
if (uv_accept(handle, client_handle))
return;
// Successful accept. Call the onconnection callback in JavaScript land.
argv[1] = client_obj;
pipe_wrap->MakeCallback(env->onconnection_string(), ARRAY_SIZE(argv), argv);
}
// TODO(bnoordhuis) Maybe share this with TCPWrap?
void PipeWrap::AfterConnect(uv_connect_t* req, int status) {
PipeConnectWrap* req_wrap = static_cast<PipeConnectWrap*>(req->data);
PipeWrap* wrap = static_cast<PipeWrap*>(req->handle->data);
assert(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.
assert(req_wrap->persistent().IsEmpty() == false);
assert(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(), ARRAY_SIZE(argv), argv);
delete req_wrap;
}
void PipeWrap::Open(const FunctionCallbackInfo<Value>& args) {
Environment* env = Environment::GetCurrent(args.GetIsolate());
HandleScope scope(env->isolate());
PipeWrap* wrap = Unwrap<PipeWrap>(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) {
HandleScope scope(args.GetIsolate());
Environment* env = Environment::GetCurrent(args.GetIsolate());
PipeWrap* wrap = Unwrap<PipeWrap>(args.Holder());
assert(args[0]->IsObject());
assert(args[1]->IsString());
Local<Object> req_wrap_obj = args[0].As<Object>();
node::Utf8Value name(args[1]);
PipeConnectWrap* req_wrap = new PipeConnectWrap(env, req_wrap_obj);
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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