TCPSession::TCPSession(const IPV4Host &ia, tpport_t port, size_t size, int pri, size_t stack) :
Thread(pri, stack), TCPStream(IPV4)
{
setCompletion(false);
setError(false);
allocate(size);
size_t i;
for(i = 0 ; i < ia.getAddressCount(); i++) {
struct sockaddr_in addr;
memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_addr = ia.getAddress(i);
addr.sin_port = htons(port);
// Win32 will crash if you try to connect to INADDR_ANY.
if ( INADDR_ANY == addr.sin_addr.s_addr )
addr.sin_addr.s_addr = INADDR_LOOPBACK;
if(::connect(so, (struct sockaddr *)&addr, (socklen_t)sizeof(addr)) == 0)
break;
#ifdef _MSWINDOWS_
if(WSAGetLastError() == WSAEISCONN || WSAGetLastError() == WSAEWOULDBLOCK)
#else
if(errno == EINPROGRESS)
#endif
{
Socket::state = CONNECTING;
return;
}
}
if(i == ia.getAddressCount()) {
endSocket();
Socket::state = INITIAL;
return;
}
setCompletion(true);
Socket::state = CONNECTED;
}
void TCPStream::connect(const IPV4Host &host, tpport_t port, unsigned mss)
{
size_t i;
fd_set fds;
struct timeval to;
bool connected = false;
int rtn;
int sockopt;
socklen_t len = sizeof(sockopt);
#ifdef TCP_MAXSEG
if(mss)
setsockopt(so, IPPROTO_TCP, TCP_MAXSEG, (char *)&mss, sizeof(mss));
#endif
for(i = 0 ; i < host.getAddressCount(); i++) {
struct sockaddr_in addr;
memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_addr = host.getAddress(i);
addr.sin_port = htons(port);
if(timeout)
setCompletion(false);
// Win32 will crash if you try to connect to INADDR_ANY.
if ( INADDR_ANY == addr.sin_addr.s_addr )
addr.sin_addr.s_addr = INADDR_LOOPBACK;
rtn = ::connect(so, (struct sockaddr *)&addr, (socklen_t)sizeof(addr));
if(!rtn) {
connected = true;
break;
}
#ifndef _MSWINDOWS_
if(errno == EINPROGRESS)
#else
if(WSAGetLastError() == WSAEINPROGRESS)
#endif
{
FD_ZERO(&fds);
FD_SET(so, &fds);
to.tv_sec = timeout / 1000;
to.tv_usec = timeout % 1000 * 1000;
// timeout check for connect completion
if(::select((int)so + 1, NULL, &fds, NULL, &to) < 1)
continue;
getsockopt(so, SOL_SOCKET, SO_ERROR, (char *)&sockopt, &len);
if(!sockopt) {
connected = true;
break;
}
endSocket();
so = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if(so == INVALID_SOCKET)
break;
}
}
setCompletion(true);
if(!connected) {
rtn = errno;
endStream();
errno = rtn;
connectError();
return;
}
segmentBuffering(mss);
Socket::state = CONNECTED;
}