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// **********************************************************************
//
// Copyright (c) 2003-2016 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 <IceBT/StreamSocket.h>
#include <IceBT/EndpointInfo.h>
#include <IceBT/Instance.h>
#include <IceBT/Util.h>
#include <Ice/LoggerUtil.h>
#include <Ice/Properties.h>
using namespace std;
using namespace Ice;
using namespace IceBT;
IceBT::StreamSocket::StreamSocket(const InstancePtr& instance, const SocketAddress& addr) :
IceInternal::NativeInfo(createSocket()),
_instance(instance),
_addr(addr),
_state(StateNeedConnect)
{
init();
if(doConnect(_fd, _addr))
{
_state = StateConnected;
}
_desc = fdToString(_fd);
}
IceBT::StreamSocket::StreamSocket(const InstancePtr& instance, SOCKET fd) :
IceInternal::NativeInfo(fd),
_instance(instance),
_state(StateConnected)
{
init();
_desc = fdToString(fd);
}
IceBT::StreamSocket::~StreamSocket()
{
assert(_fd == INVALID_SOCKET);
}
IceInternal::SocketOperation
IceBT::StreamSocket::connect(IceInternal::Buffer& readBuffer, IceInternal::Buffer& writeBuffer)
{
if(_state == StateNeedConnect)
{
_state = StateConnectPending;
return IceInternal::SocketOperationConnect;
}
else if(_state <= StateConnectPending)
{
doFinishConnect(_fd);
_desc = fdToString(_fd);
_state = StateConnected;
}
assert(_state == StateConnected);
return IceInternal::SocketOperationNone;
}
bool
IceBT::StreamSocket::isConnected()
{
return _state == StateConnected;
}
size_t
IceBT::StreamSocket::getSendPacketSize(size_t length)
{
return length;
}
size_t
IceBT::StreamSocket::getRecvPacketSize(size_t length)
{
return length;
}
void
IceBT::StreamSocket::setBufferSize(int rcvSize, int sndSize)
{
assert(_fd != INVALID_SOCKET);
if(rcvSize > 0)
{
//
// Try to set the buffer size. The kernel will silently adjust
// the size to an acceptable value. Then read the size back to
// get the size that was actually set.
//
IceInternal::setRecvBufferSize(_fd, rcvSize);
int size = IceInternal::getRecvBufferSize(_fd);
if(size > 0 && size < rcvSize)
{
//
// Warn if the size that was set is less than the requested size and
// we have not already warned.
//
IceInternal::BufSizeWarnInfo winfo = _instance->getBufSizeWarn(EndpointType);
if(!winfo.rcvWarn || rcvSize != winfo.rcvSize)
{
Ice::Warning out(_instance->logger());
out << "BT receive buffer size: requested size of " << rcvSize << " adjusted to " << size;
_instance->setRcvBufSizeWarn(EndpointType, rcvSize);
}
}
}
if(sndSize > 0)
{
//
// Try to set the buffer size. The kernel will silently adjust
// the size to an acceptable value. Then read the size back to
// get the size that was actually set.
//
IceInternal::setSendBufferSize(_fd, sndSize);
int size = IceInternal::getSendBufferSize(_fd);
if(size > 0 && size < sndSize)
{
// Warn if the size that was set is less than the requested size and
// we have not already warned.
IceInternal::BufSizeWarnInfo winfo = _instance->getBufSizeWarn(EndpointType);
if(!winfo.sndWarn || sndSize != winfo.sndSize)
{
Ice::Warning out(_instance->logger());
out << "BT send buffer size: requested size of " << sndSize << " adjusted to " << size;
_instance->setSndBufSizeWarn(EndpointType, sndSize);
}
}
}
}
IceInternal::SocketOperation
IceBT::StreamSocket::read(IceInternal::Buffer& buf)
{
buf.i += read(reinterpret_cast<char*>(&*buf.i), buf.b.end() - buf.i);
return buf.i != buf.b.end() ? IceInternal::SocketOperationRead : IceInternal::SocketOperationNone;
}
IceInternal::SocketOperation
IceBT::StreamSocket::write(IceInternal::Buffer& buf)
{
buf.i += write(reinterpret_cast<const char*>(&*buf.i), buf.b.end() - buf.i);
return buf.i != buf.b.end() ? IceInternal::SocketOperationWrite : IceInternal::SocketOperationNone;
}
ssize_t
IceBT::StreamSocket::read(char* buf, size_t length)
{
assert(_fd != INVALID_SOCKET);
size_t packetSize = length;
ssize_t read = 0;
while(length > 0)
{
ssize_t ret = ::recv(_fd, buf, packetSize, 0);
if(ret == 0)
{
Ice::ConnectionLostException ex(__FILE__, __LINE__);
ex.error = 0;
throw ex;
}
else if(ret == SOCKET_ERROR)
{
if(IceInternal::interrupted())
{
continue;
}
if(IceInternal::noBuffers() && packetSize > 1024)
{
packetSize /= 2;
continue;
}
if(IceInternal::wouldBlock())
{
return read;
}
if(IceInternal::connectionLost())
{
Ice::ConnectionLostException ex(__FILE__, __LINE__);
ex.error = IceInternal::getSocketErrno();
throw ex;
}
else
{
Ice::SocketException ex(__FILE__, __LINE__);
ex.error = IceInternal::getSocketErrno();
throw ex;
}
}
buf += ret;
read += ret;
length -= ret;
if(packetSize > length)
{
packetSize = length;
}
}
return read;
}
ssize_t
IceBT::StreamSocket::write(const char* buf, size_t length)
{
assert(_fd != INVALID_SOCKET);
size_t packetSize = length;
ssize_t sent = 0;
while(length > 0)
{
ssize_t ret = ::send(_fd, buf, packetSize, 0);
if(ret == 0)
{
Ice::ConnectionLostException ex(__FILE__, __LINE__);
ex.error = 0;
throw ex;
}
else if(ret == SOCKET_ERROR)
{
if(IceInternal::interrupted())
{
continue;
}
if(IceInternal::noBuffers() && packetSize > 1024)
{
packetSize /= 2;
continue;
}
if(IceInternal::wouldBlock())
{
return sent;
}
if(IceInternal::connectionLost())
{
Ice::ConnectionLostException ex(__FILE__, __LINE__);
ex.error = IceInternal::getSocketErrno();
throw ex;
}
else
{
Ice::SocketException ex(__FILE__, __LINE__);
ex.error = IceInternal::getSocketErrno();
throw ex;
}
}
buf += ret;
sent += ret;
length -= ret;
if(packetSize > length)
{
packetSize = length;
}
}
return sent;
}
void
IceBT::StreamSocket::close()
{
assert(_fd != INVALID_SOCKET);
try
{
IceInternal::closeSocket(_fd);
_fd = INVALID_SOCKET;
}
catch(const Ice::SocketException&)
{
_fd = INVALID_SOCKET;
throw;
}
}
const string&
IceBT::StreamSocket::toString() const
{
return _desc;
}
void
IceBT::StreamSocket::init()
{
IceInternal::setBlock(_fd, false);
Int rcvSize = _instance->properties()->getPropertyAsInt("IceBT.RcvSize");
Int sndSize = _instance->properties()->getPropertyAsInt("IceBT.SndSize");
setBufferSize(rcvSize, sndSize);
}
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