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// **********************************************************************
//
// Copyright (c) 2001
// MutableRealms, Inc.
// Huntsville, AL, USA
//
// All Rights Reserved
//
// **********************************************************************

#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);

    if (_traceLevels->network >= 1)
    {
	Trace out(_logger, _traceLevels->networkCat);
	out << "accepted tcp connection\n" << fdToString(fd);
    }

    return new TcpTransceiver(_instance, fd);
}

string
IceInternal::TcpAcceptor::toString() const
{
    return addrToString(_addr);
}

bool
IceInternal::TcpAcceptor::equivalent(const string& host, int port) const
{
    struct sockaddr_in addr;
    getAddress(host, port, addr);
    return memcmp(&addr, &_addr, sizeof(struct sockaddr_in)) == 0;    
}

int
IceInternal::TcpAcceptor::effectivePort()
{
    return ntohs(_addr.sin_port);
}

IceInternal::TcpAcceptor::TcpAcceptor(const InstancePtr& instance, const string& host, int port) :
    _instance(instance),
    _traceLevels(instance->traceLevels()),
    _logger(instance->logger()),
    _backlog(0)
{
    if (_backlog <= 0)
    {
        _backlog = 5;
    }

    try
    {
	_fd = createSocket(false);
	getAddress(host, port, _addr);
	doBind(_fd, _addr);
    }
    catch(...)
    {
	_fd = INVALID_SOCKET;
	throw;
    }
}

IceInternal::TcpAcceptor::~TcpAcceptor()
{
    assert(_fd == INVALID_SOCKET);
}