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tag: v0.10.6
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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 "node.h"
#include "node_buffer.h"
#include "req_wrap.h"
#include "handle_wrap.h"
#include "stream_wrap.h"
#include "tcp_wrap.h"
#include <stdlib.h>
namespace node {
using v8::Arguments;
using v8::Context;
using v8::Function;
using v8::FunctionTemplate;
using v8::Handle;
using v8::HandleScope;
using v8::Integer;
using v8::Local;
using v8::Null;
using v8::Object;
using v8::Persistent;
using v8::PropertyAttribute;
using v8::String;
using v8::TryCatch;
using v8::Undefined;
using v8::Value;
static Persistent<Function> tcpConstructor;
static Persistent<String> oncomplete_sym;
static Persistent<String> onconnection_sym;
typedef class ReqWrap<uv_connect_t> ConnectWrap;
Local<Object> AddressToJS(const sockaddr* addr);
Local<Object> TCPWrap::Instantiate() {
// If this assert fire then process.binding('tcp_wrap') hasn't been
// called yet.
assert(tcpConstructor.IsEmpty() == false);
HandleScope scope;
Local<Object> obj = tcpConstructor->NewInstance();
return scope.Close(obj);
}
void TCPWrap::Initialize(Handle<Object> target) {
HandleWrap::Initialize(target);
StreamWrap::Initialize(target);
HandleScope scope;
Local<FunctionTemplate> t = FunctionTemplate::New(New);
t->SetClassName(String::NewSymbol("TCP"));
t->InstanceTemplate()->SetInternalFieldCount(1);
enum PropertyAttribute attributes =
static_cast<PropertyAttribute>(v8::ReadOnly | v8::DontDelete);
t->InstanceTemplate()->SetAccessor(String::New("fd"),
StreamWrap::GetFD,
NULL,
Handle<Value>(),
v8::DEFAULT,
attributes);
NODE_SET_PROTOTYPE_METHOD(t, "close", HandleWrap::Close);
NODE_SET_PROTOTYPE_METHOD(t, "ref", HandleWrap::Ref);
NODE_SET_PROTOTYPE_METHOD(t, "unref", HandleWrap::Unref);
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, "open", Open);
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, "bind6", Bind6);
NODE_SET_PROTOTYPE_METHOD(t, "connect6", Connect6);
NODE_SET_PROTOTYPE_METHOD(t, "getsockname", GetSockName);
NODE_SET_PROTOTYPE_METHOD(t, "getpeername", GetPeerName);
NODE_SET_PROTOTYPE_METHOD(t, "setNoDelay", SetNoDelay);
NODE_SET_PROTOTYPE_METHOD(t, "setKeepAlive", SetKeepAlive);
#ifdef _WIN32
NODE_SET_PROTOTYPE_METHOD(t, "setSimultaneousAccepts", SetSimultaneousAccepts);
#endif
tcpConstructor = Persistent<Function>::New(t->GetFunction());
onconnection_sym = NODE_PSYMBOL("onconnection");
oncomplete_sym = NODE_PSYMBOL("oncomplete");
target->Set(String::NewSymbol("TCP"), tcpConstructor);
}
TCPWrap* TCPWrap::Unwrap(Local<Object> obj) {
assert(!obj.IsEmpty());
assert(obj->InternalFieldCount() > 0);
return static_cast<TCPWrap*>(obj->GetPointerFromInternalField(0));
}
uv_tcp_t* TCPWrap::UVHandle() {
return &handle_;
}
Handle<Value> TCPWrap::New(const Arguments& 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;
TCPWrap* wrap = new TCPWrap(args.This());
assert(wrap);
return scope.Close(args.This());
}
TCPWrap::TCPWrap(Handle<Object> object)
: StreamWrap(object, (uv_stream_t*) &handle_) {
int r = uv_tcp_init(uv_default_loop(), &handle_);
assert(r == 0); // How do we proxy this error up to javascript?
// Suggestion: uv_tcp_init() returns void.
UpdateWriteQueueSize();
}
TCPWrap::~TCPWrap() {
assert(object_.IsEmpty());
}
Handle<Value> TCPWrap::GetSockName(const Arguments& args) {
HandleScope scope;
struct sockaddr_storage address;
UNWRAP(TCPWrap)
int addrlen = sizeof(address);
int r = uv_tcp_getsockname(&wrap->handle_,
reinterpret_cast<sockaddr*>(&address),
&addrlen);
if (r) {
SetErrno(uv_last_error(uv_default_loop()));
return Null();
}
const sockaddr* addr = reinterpret_cast<const sockaddr*>(&address);
return scope.Close(AddressToJS(addr));
}
Handle<Value> TCPWrap::GetPeerName(const Arguments& args) {
HandleScope scope;
struct sockaddr_storage address;
UNWRAP(TCPWrap)
int addrlen = sizeof(address);
int r = uv_tcp_getpeername(&wrap->handle_,
reinterpret_cast<sockaddr*>(&address),
&addrlen);
if (r) {
SetErrno(uv_last_error(uv_default_loop()));
return Null();
}
const sockaddr* addr = reinterpret_cast<const sockaddr*>(&address);
return scope.Close(AddressToJS(addr));
}
Handle<Value> TCPWrap::SetNoDelay(const Arguments& args) {
HandleScope scope;
UNWRAP(TCPWrap)
int enable = static_cast<int>(args[0]->BooleanValue());
int r = uv_tcp_nodelay(&wrap->handle_, enable);
if (r)
SetErrno(uv_last_error(uv_default_loop()));
return Undefined();
}
Handle<Value> TCPWrap::SetKeepAlive(const Arguments& args) {
HandleScope scope;
UNWRAP(TCPWrap)
int enable = args[0]->Int32Value();
unsigned int delay = args[1]->Uint32Value();
int r = uv_tcp_keepalive(&wrap->handle_, enable, delay);
if (r)
SetErrno(uv_last_error(uv_default_loop()));
return Undefined();
}
#ifdef _WIN32
Handle<Value> TCPWrap::SetSimultaneousAccepts(const Arguments& args) {
HandleScope scope;
UNWRAP(TCPWrap)
bool enable = args[0]->BooleanValue();
int r = uv_tcp_simultaneous_accepts(&wrap->handle_, enable ? 1 : 0);
if (r)
SetErrno(uv_last_error(uv_default_loop()));
return Undefined();
}
#endif
Handle<Value> TCPWrap::Open(const Arguments& args) {
HandleScope scope;
UNWRAP(TCPWrap)
int fd = args[0]->IntegerValue();
uv_tcp_open(&wrap->handle_, fd);
return Null();
}
Handle<Value> TCPWrap::Bind(const Arguments& args) {
HandleScope scope;
UNWRAP(TCPWrap)
String::AsciiValue ip_address(args[0]);
int port = args[1]->Int32Value();
struct sockaddr_in address = uv_ip4_addr(*ip_address, port);
int r = uv_tcp_bind(&wrap->handle_, address);
// Error starting the tcp.
if (r) SetErrno(uv_last_error(uv_default_loop()));
return scope.Close(Integer::New(r));
}
Handle<Value> TCPWrap::Bind6(const Arguments& args) {
HandleScope scope;
UNWRAP(TCPWrap)
String::AsciiValue ip6_address(args[0]);
int port = args[1]->Int32Value();
struct sockaddr_in6 address = uv_ip6_addr(*ip6_address, port);
int r = uv_tcp_bind6(&wrap->handle_, address);
// Error starting the tcp.
if (r) SetErrno(uv_last_error(uv_default_loop()));
return scope.Close(Integer::New(r));
}
Handle<Value> TCPWrap::Listen(const Arguments& args) {
HandleScope scope;
UNWRAP(TCPWrap)
int backlog = args[0]->Int32Value();
int r = uv_listen((uv_stream_t*)&wrap->handle_, backlog, OnConnection);
// Error starting the tcp.
if (r) SetErrno(uv_last_error(uv_default_loop()));
return scope.Close(Integer::New(r));
}
void TCPWrap::OnConnection(uv_stream_t* handle, int status) {
HandleScope scope;
TCPWrap* wrap = static_cast<TCPWrap*>(handle->data);
assert(&wrap->handle_ == (uv_tcp_t*)handle);
// We should not be getting this callback if someone as already called
// uv_close() on the handle.
assert(wrap->object_.IsEmpty() == false);
Local<Value> argv[1];
if (status == 0) {
// Instantiate the client javascript object and handle.
Local<Object> client_obj = Instantiate();
// Unwrap the client javascript object.
assert(client_obj->InternalFieldCount() > 0);
TCPWrap* client_wrap = static_cast<TCPWrap*>(
client_obj->GetPointerFromInternalField(0));
if (uv_accept(handle, (uv_stream_t*)&client_wrap->handle_)) return;
// Successful accept. Call the onconnection callback in JavaScript land.
argv[0] = client_obj;
} else {
SetErrno(uv_last_error(uv_default_loop()));
argv[0] = Local<Value>::New(Null());
}
MakeCallback(wrap->object_, onconnection_sym, ARRAY_SIZE(argv), argv);
}
void TCPWrap::AfterConnect(uv_connect_t* req, int status) {
ConnectWrap* req_wrap = (ConnectWrap*) req->data;
TCPWrap* wrap = (TCPWrap*) req->handle->data;
HandleScope scope;
// The wrap and request objects should still be there.
assert(req_wrap->object_.IsEmpty() == false);
assert(wrap->object_.IsEmpty() == false);
if (status) {
SetErrno(uv_last_error(uv_default_loop()));
}
Local<Value> argv[5] = {
Integer::New(status),
Local<Value>::New(wrap->object_),
Local<Value>::New(req_wrap->object_),
Local<Value>::New(v8::True()),
Local<Value>::New(v8::True())
};
MakeCallback(req_wrap->object_, oncomplete_sym, ARRAY_SIZE(argv), argv);
delete req_wrap;
}
Handle<Value> TCPWrap::Connect(const Arguments& args) {
HandleScope scope;
UNWRAP(TCPWrap)
String::AsciiValue ip_address(args[0]);
int port = args[1]->Int32Value();
struct sockaddr_in address = uv_ip4_addr(*ip_address, port);
// I hate when people program C++ like it was C, and yet I do it too.
// I'm too lazy to come up with the perfect class hierarchy here. Let's
// just do some type munging.
ConnectWrap* req_wrap = new ConnectWrap();
int r = uv_tcp_connect(&req_wrap->req_, &wrap->handle_, address,
AfterConnect);
req_wrap->Dispatched();
if (r) {
SetErrno(uv_last_error(uv_default_loop()));
delete req_wrap;
return scope.Close(v8::Null());
} else {
return scope.Close(req_wrap->object_);
}
}
Handle<Value> TCPWrap::Connect6(const Arguments& args) {
HandleScope scope;
UNWRAP(TCPWrap)
String::AsciiValue ip_address(args[0]);
int port = args[1]->Int32Value();
struct sockaddr_in6 address = uv_ip6_addr(*ip_address, port);
ConnectWrap* req_wrap = new ConnectWrap();
int r = uv_tcp_connect6(&req_wrap->req_, &wrap->handle_, address,
AfterConnect);
req_wrap->Dispatched();
if (r) {
SetErrno(uv_last_error(uv_default_loop()));
delete req_wrap;
return scope.Close(v8::Null());
} else {
return scope.Close(req_wrap->object_);
}
}
// also used by udp_wrap.cc
Local<Object> AddressToJS(const sockaddr* addr) {
static Persistent<String> address_sym;
static Persistent<String> family_sym;
static Persistent<String> port_sym;
static Persistent<String> ipv4_sym;
static Persistent<String> ipv6_sym;
HandleScope scope;
char ip[INET6_ADDRSTRLEN];
const sockaddr_in *a4;
const sockaddr_in6 *a6;
int port;
if (address_sym.IsEmpty()) {
address_sym = NODE_PSYMBOL("address");
family_sym = NODE_PSYMBOL("family");
port_sym = NODE_PSYMBOL("port");
ipv4_sym = NODE_PSYMBOL("IPv4");
ipv6_sym = NODE_PSYMBOL("IPv6");
}
Local<Object> info = Object::New();
switch (addr->sa_family) {
case AF_INET6:
a6 = reinterpret_cast<const sockaddr_in6*>(addr);
uv_inet_ntop(AF_INET6, &a6->sin6_addr, ip, sizeof ip);
port = ntohs(a6->sin6_port);
info->Set(address_sym, String::New(ip));
info->Set(family_sym, ipv6_sym);
info->Set(port_sym, Integer::New(port));
break;
case AF_INET:
a4 = reinterpret_cast<const sockaddr_in*>(addr);
uv_inet_ntop(AF_INET, &a4->sin_addr, ip, sizeof ip);
port = ntohs(a4->sin_port);
info->Set(address_sym, String::New(ip));
info->Set(family_sym, ipv4_sym);
info->Set(port_sym, Integer::New(port));
break;
default:
info->Set(address_sym, String::Empty());
}
return scope.Close(info);
}
} // namespace node
NODE_MODULE(node_tcp_wrap, node::TCPWrap::Initialize)
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