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// **********************************************************************
//
// Copyright (c) 2003-2007 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
#include <Ice/TcpAcceptor.h>
#include <Ice/TcpTransceiver.h>
#include <Ice/Instance.h>
#include <Ice/TraceLevels.h>
#include <Ice/LoggerUtil.h>
#include <Ice/Network.h>
#include <Ice/Exception.h>
using namespace std;
using namespace Ice;
using namespace IceInternal;
SOCKET
IceInternal::TcpAcceptor::fd()
{
return _fd;
}
void
IceInternal::TcpAcceptor::close()
{
if(_traceLevels->network >= 1)
{
Trace out(_logger, _traceLevels->networkCat);
out << "stopping to accept tcp connections at " << toString();
}
SOCKET fd = _fd;
_fd = INVALID_SOCKET;
closeSocket(fd);
}
void
IceInternal::TcpAcceptor::listen()
{
try
{
doListen(_fd, _backlog);
}
catch(...)
{
_fd = INVALID_SOCKET;
throw;
}
if(_traceLevels->network >= 1)
{
Trace out(_logger, _traceLevels->networkCat);
out << "accepting tcp connections at " << toString();
}
}
TransceiverPtr
IceInternal::TcpAcceptor::accept(int timeout)
{
SOCKET fd = doAccept(_fd, timeout);
setBlock(fd, false);
setTcpBufSize(fd, _instance->initializationData().properties, _logger);
if(_traceLevels->network >= 1)
{
Trace out(_logger, _traceLevels->networkCat);
out << "accepted tcp connection\n" << fdToString(fd);
}
return new TcpTransceiver(_instance, fd, true);
}
void
IceInternal::TcpAcceptor::connectToSelf()
{
SOCKET fd = createSocket(false, _addr.ss_family);
setBlock(fd, false);
doConnect(fd, _addr, -1);
closeSocket(fd);
}
string
IceInternal::TcpAcceptor::toString() const
{
return addrToString(_addr);
}
int
IceInternal::TcpAcceptor::effectivePort() const
{
return getPort(_addr);
}
IceInternal::TcpAcceptor::TcpAcceptor(const InstancePtr& instance, const string& host, int port) :
_instance(instance),
_traceLevels(instance->traceLevels()),
_logger(instance->initializationData().logger),
_backlog(0)
{
if(_backlog <= 0)
{
_backlog = 5;
}
try
{
getAddressForServer(host, port, _addr, _instance->protocolSupport());
_fd = createSocket(false, _addr.ss_family);
setBlock(_fd, false);
setTcpBufSize(_fd, _instance->initializationData().properties, _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
if(_traceLevels->network >= 2)
{
Trace out(_logger, _traceLevels->networkCat);
out << "attempting to bind to tcp socket " << toString();
}
doBind(_fd, _addr);
}
catch(...)
{
_fd = INVALID_SOCKET;
throw;
}
}
IceInternal::TcpAcceptor::~TcpAcceptor()
{
assert(_fd == INVALID_SOCKET);
}
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