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// **********************************************************************
//
// Copyright (c) 2001
// MutableRealms, Inc.
// Huntsville, AL, USA
//
// All Rights Reserved
//
// **********************************************************************
#include <Ice/UdpTransceiver.h>
#include <Ice/Instance.h>
#include <Ice/TraceLevels.h>
#include <Ice/LoggerUtil.h>
#include <Ice/Buffer.h>
#include <Ice/Network.h>
#include <Ice/Exception.h>
using namespace std;
using namespace Ice;
using namespace IceInternal;
SOCKET
IceInternal::UdpTransceiver::fd()
{
return _fd;
}
void
IceInternal::UdpTransceiver::close()
{
if (_traceLevels->network >= 1)
{
Trace out(_logger, _traceLevels->networkCat);
out << "closing " << _protocolName << " connection\n" << toString();
}
SOCKET fd = _fd;
_fd = INVALID_SOCKET;
closeSocket(fd);
}
void
IceInternal::UdpTransceiver::shutdown()
{
}
void
IceInternal::UdpTransceiver::write(Buffer& buf, int)
{
assert(buf.i == buf.b.begin());
#ifndef NDEBUG
const int packetSize = 64 * 1024; // TODO: configurable
assert(packetSize >= static_cast<int>(buf.b.size())); // TODO: exception
#endif
repeat:
int ret = ::send(_fd, buf.b.begin(), buf.b.size(), 0);
if (ret == SOCKET_ERROR)
{
if (interrupted())
{
goto repeat;
}
SocketException ex(__FILE__, __LINE__);
ex.error = getSocketErrno();
throw ex;
}
if (_traceLevels->network >= 3)
{
Trace out(_logger, _traceLevels->networkCat);
out << "sent " << ret << " bytes via " << _protocolName << "\n" << toString();
}
assert(ret == static_cast<int>(buf.b.size()));
buf.i = buf.b.end();
}
void
IceInternal::UdpTransceiver::read(Buffer& buf, int)
{
assert(buf.i == buf.b.begin());
const int packetSize = 64 * 1024; // TODO: configurable
assert(packetSize >= static_cast<int>(buf.b.size())); // TODO: exception
buf.b.resize(packetSize);
buf.i = buf.b.begin();
repeat:
int ret;
if (_connect)
{
//
// If we must connect, then we connect to the first peer that
// sends us a packet.
//
struct sockaddr_in peerAddr;
memset(&peerAddr, 0, sizeof(struct sockaddr_in));
socklen_t len = sizeof(peerAddr);
ret = recvfrom(_fd, buf.b.begin(), packetSize, 0, reinterpret_cast<struct sockaddr*>(&peerAddr), &len);
if (ret != SOCKET_ERROR)
{
doConnect(_fd, peerAddr, -1);
_connect = false; // We're connected now
if (_traceLevels->network >= 1)
{
Trace out(_logger, _traceLevels->networkCat);
out << "connected " << _protocolName << " socket\n" << toString();
}
}
}
else
{
ret = ::recv(_fd, buf.b.begin(), packetSize, 0);
}
if (ret == SOCKET_ERROR)
{
if (interrupted())
{
goto repeat;
}
SocketException ex(__FILE__, __LINE__);
ex.error = getSocketErrno();
throw ex;
}
if (_traceLevels->network >= 3)
{
Trace out(_logger, _traceLevels->networkCat);
out << "received " << ret << " bytes via " << _protocolName << "\n" << toString();
}
buf.b.resize(ret);
buf.i = buf.b.end();
}
string
IceInternal::UdpTransceiver::toString() const
{
return fdToString(_fd);
}
bool
IceInternal::UdpTransceiver::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::UdpTransceiver::effectivePort()
{
return ntohs(_addr.sin_port);
}
void
IceInternal::UdpTransceiver::setProtocolName(const string& protocolName)
{
_protocolName = protocolName;
}
IceInternal::UdpTransceiver::UdpTransceiver(const InstancePtr& instance, const string& host, int port,
const string& protocolName) :
_instance(instance),
_traceLevels(instance->traceLevels()),
_logger(instance->logger()),
_incoming(false),
_connect(true),
_protocolName(protocolName)
{
try
{
_fd = createSocket(true);
getAddress(host, port, _addr);
doConnect(_fd, _addr, -1);
_connect = false; // We're connected now
if (_traceLevels->network >= 1)
{
Trace out(_logger, _traceLevels->networkCat);
out << "starting to send " << _protocolName << " packets\n" << toString();
}
}
catch(...)
{
_fd = INVALID_SOCKET;
throw;
}
}
IceInternal::UdpTransceiver::UdpTransceiver(const InstancePtr& instance, const string& host, int port,
bool connect, const string& protocolName) :
_instance(instance),
_traceLevels(instance->traceLevels()),
_logger(instance->logger()),
_incoming(true),
_connect(connect),
_protocolName(protocolName)
{
try
{
_fd = createSocket(true);
getAddress(host, port, _addr);
doBind(_fd, _addr);
if (_traceLevels->network >= 1)
{
Trace out(_logger, _traceLevels->networkCat);
out << "starting to receive " << _protocolName << " packets\n" << toString();
}
}
catch(...)
{
_fd = INVALID_SOCKET;
throw;
}
}
IceInternal::UdpTransceiver::~UdpTransceiver()
{
assert(_fd == INVALID_SOCKET);
}
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