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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 "node.h"
#include "node_buffer.h"
#include "handle_wrap.h"
#include "node_wrap.h"
#include "req_wrap.h"
#include "stream_wrap.h"
namespace node {
using v8::Boolean;
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::Persistent;
using v8::PropertyAttribute;
using v8::String;
using v8::Undefined;
using v8::Value;
static Persistent<Function> pipeConstructor;
static Cached<String> onconnection_sym;
static Cached<String> oncomplete_sym;
// TODO(bnoordhuis) share with TCPWrap?
typedef class ReqWrap<uv_connect_t> ConnectWrap;
uv_pipe_t* PipeWrap::UVHandle() {
return &handle_;
}
Local<Object> PipeWrap::Instantiate() {
HandleScope scope(node_isolate);
assert(!pipeConstructor.IsEmpty());
return scope.Close(NewInstance(pipeConstructor));
}
PipeWrap* PipeWrap::Unwrap(Local<Object> obj) {
PipeWrap* wrap;
NODE_UNWRAP(obj, PipeWrap, wrap);
return wrap;
}
void PipeWrap::Initialize(Handle<Object> target) {
StreamWrap::Initialize(target);
HandleScope scope(node_isolate);
Local<FunctionTemplate> t = FunctionTemplate::New(New);
t->SetClassName(FIXED_ONE_BYTE_STRING(node_isolate, "Pipe"));
t->InstanceTemplate()->SetInternalFieldCount(1);
enum PropertyAttribute attributes =
static_cast<PropertyAttribute>(v8::ReadOnly | v8::DontDelete);
t->InstanceTemplate()->SetAccessor(FIXED_ONE_BYTE_STRING(node_isolate, "fd"),
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, "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, "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
pipeConstructorTmpl.Reset(node_isolate, t);
pipeConstructor.Reset(node_isolate, t->GetFunction());
target->Set(FIXED_ONE_BYTE_STRING(node_isolate, "Pipe"), t->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());
HandleScope scope(node_isolate);
PipeWrap* wrap = new PipeWrap(args.This(), args[0]->IsTrue());
assert(wrap);
}
PipeWrap::PipeWrap(Handle<Object> object, bool ipc)
: StreamWrap(object, reinterpret_cast<uv_stream_t*>(&handle_)) {
int r = uv_pipe_init(uv_default_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) {
HandleScope scope(node_isolate);
PipeWrap* wrap;
NODE_UNWRAP(args.This(), PipeWrap, wrap);
String::AsciiValue name(args[0]);
int err = uv_pipe_bind(&wrap->handle_, *name);
args.GetReturnValue().Set(err);
}
#ifdef _WIN32
void PipeWrap::SetPendingInstances(const FunctionCallbackInfo<Value>& args) {
HandleScope scope(node_isolate);
PipeWrap* wrap;
NODE_UNWRAP(args.This(), PipeWrap, wrap);
int instances = args[0]->Int32Value();
uv_pipe_pending_instances(&wrap->handle_, instances);
}
#endif
void PipeWrap::Listen(const FunctionCallbackInfo<Value>& args) {
HandleScope scope(node_isolate);
PipeWrap* wrap;
NODE_UNWRAP(args.This(), PipeWrap, wrap);
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) {
HandleScope scope(node_isolate);
PipeWrap* pipe_wrap = static_cast<PipeWrap*>(handle->data);
assert(&pipe_wrap->handle_ == reinterpret_cast<uv_pipe_t*>(handle));
// 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(status, node_isolate),
Undefined()
};
if (status != 0) {
MakeCallback(pipe_wrap->object(), "onconnection", ARRAY_SIZE(argv), argv);
return;
}
// Instanciate the client javascript object and handle.
Local<Object> client_obj = NewInstance(pipeConstructor);
// Unwrap the client javascript object.
PipeWrap* wrap;
NODE_UNWRAP(client_obj, PipeWrap, wrap);
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;
if (onconnection_sym.IsEmpty()) {
onconnection_sym = FIXED_ONE_BYTE_STRING(node_isolate, "onconnection");
}
MakeCallback(pipe_wrap->object(), onconnection_sym, ARRAY_SIZE(argv), argv);
}
// 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);
HandleScope scope(node_isolate);
// 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(status, node_isolate),
wrap->object(),
req_wrap_obj,
Boolean::New(readable),
Boolean::New(writable)
};
if (oncomplete_sym.IsEmpty()) {
oncomplete_sym = FIXED_ONE_BYTE_STRING(node_isolate, "oncomplete");
}
MakeCallback(req_wrap_obj, oncomplete_sym, ARRAY_SIZE(argv), argv);
delete req_wrap;
}
void PipeWrap::Open(const FunctionCallbackInfo<Value>& args) {
HandleScope scope(node_isolate);
PipeWrap* wrap;
NODE_UNWRAP(args.This(), PipeWrap, wrap);
int fd = args[0]->Int32Value();
uv_pipe_open(&wrap->handle_, fd);
}
void PipeWrap::Connect(const FunctionCallbackInfo<Value>& args) {
HandleScope scope(node_isolate);
PipeWrap* wrap;
NODE_UNWRAP(args.This(), PipeWrap, wrap);
assert(args[0]->IsObject());
assert(args[1]->IsString());
Local<Object> req_wrap_obj = args[0].As<Object>();
String::AsciiValue name(args[1]);
ConnectWrap* req_wrap = new ConnectWrap(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(node_pipe_wrap, node::PipeWrap::Initialize)
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