IceInternal::TcpAcceptor::TcpAcceptor(const TcpEndpointIPtr& endpoint,
const ProtocolInstancePtr& instance,
const string& host,
int port) :
_endpoint(endpoint),
_instance(instance),
_addr(getAddressForServer(host, port, _instance->protocolSupport(), instance->preferIPv6()))
#ifdef ICE_USE_IOCP
, _acceptFd(INVALID_SOCKET),
_info(SocketOperationRead)
#endif
{
#ifdef SOMAXCONN
_backlog = instance->properties()->getPropertyAsIntWithDefault("Ice.TCP.Backlog", SOMAXCONN);
#else
_backlog = instance->properties()->getPropertyAsIntWithDefault("Ice.TCP.Backlog", 511);
#endif
_fd = createServerSocket(false, _addr, instance->protocolSupport());
#ifdef ICE_USE_IOCP
_acceptBuf.resize((sizeof(sockaddr_storage) + 16) * 2);
#endif
setBlock(_fd, false);
setTcpBufSize(_fd, _instance->properties(), _instance->logger());
#ifndef _WIN32
//
// Enable SO_REUSEADDR on Unix platforms to allow re-using the
// socket even if it's in the TIME_WAIT state. On Windows,
// this doesn't appear to be necessary and enabling
// SO_REUSEADDR would actually not be a good thing since it
// allows a second process to bind to an address even it's
// already bound by another process.
//
// TODO: using SO_EXCLUSIVEADDRUSE on Windows would probably
// be better but it's only supported by recent Windows
// versions (XP SP2, Windows Server 2003).
//
setReuseAddress(_fd, true);
#endif
}
IceInternal::TcpAcceptor::TcpAcceptor(const TcpEndpointIPtr& endpoint,
const ProtocolInstancePtr& instance,
const string& host,
int port) :
_endpoint(endpoint),
_instance(instance),
_addr(getAddressForServer(host, port, _instance->protocolSupport(), instance->preferIPv6()))
#ifdef ICE_USE_IOCP
, _acceptFd(INVALID_SOCKET), _info(SocketOperationRead)
#endif
{
_backlog = instance->properties()->getPropertyAsIntWithDefault("Ice.TCP.Backlog", SOMAXCONN);
#if defined(ICE_OS_WINRT)
_fd = ref new StreamSocketListener();
safe_cast<StreamSocketListener^>(_fd)->ConnectionReceived +=
ref new TypedEventHandler<StreamSocketListener^, StreamSocketListenerConnectionReceivedEventArgs^>(
[=](StreamSocketListener^, StreamSocketListenerConnectionReceivedEventArgs^ args)
{
IceUtil::Mutex::Lock lock(_mutex);
if(_fd == INVALID_SOCKET) // Acceptor was closed.
{
closeSocket(args->Socket);
return;
}
_accepted.push_back(args->Socket);
//
// If the acceptor is waiting for a socket to be accepted, notify
// the selector that the acceptor is ready for "read". This will
// in turn caused finishAccept() and accept() to be called by the
// thread pool. If the acceptor isn't ready to accept the socket,
// it is just queued, when startAccept is called it will be dequed.
//
if(_acceptPending)
{
completed(SocketOperationRead);
_acceptPending = false;
}
});