int CwxSockConnector::connect (CwxSockStream& stream,
CwxAddr const& remoteAddr,
CwxAddr const& localAddr,
CwxTimeouter* timeout,
int protocol,
bool reuse_addr,
CWX_NET_SOCKET_ATTR_FUNC fn,
void* fnArg)
{
if ((stream.getHandle() == CWX_INVALID_HANDLE) &&
(stream.open(remoteAddr.getType(),
SOCK_STREAM,
protocol,
reuse_addr) == -1))
{
return -1;
}
if (localAddr != CwxAddr::sap_any)
{
sockaddr *laddr = reinterpret_cast<sockaddr *> (localAddr.getAddr());
int size = localAddr.getSize ();
if (::bind (stream.getHandle (),
laddr,
size) == -1)
{
CwxErrGuard guard;
stream.close ();
return -1;
}
}
// Enable non-blocking, if required.
if ((timeout != 0) && (stream.setNonblock(true) == -1))
{
CwxErrGuard guard;
stream.close ();
return -1;
}
if (fn)
{
if (0 != fn(stream.getHandle(), fnArg))
{
CwxErrGuard guard;
stream.close();
return -1;
}
}
int result = ::connect (stream.getHandle (),
reinterpret_cast<sockaddr *> (remoteAddr.getAddr ()),
remoteAddr.getSize ());
if (result == -1 && timeout != 0)
{
// Check whether the connection is in progress.
if (errno == EINPROGRESS || errno == EWOULDBLOCK)
{
// This expression checks if we were polling.
if (*timeout->getTimeout() == CwxTimeValue::ZERO)
{
errno = EWOULDBLOCK;
}
// Wait synchronously using timeout.
else if (this->complete (stream,
0,
timeout) == -1)
{
}
else
{
return 0;
}
}
}
// EISCONN is treated specially since this routine may be used to
// check if we are already connected.
if (result != -1 || errno == EISCONN)
{
// Start out with non-blocking disabled on the new_stream.
result = stream.setNonblock(false);
if (result == -1)
{
CwxErrGuard guard;
stream.close ();
}
}
else if (!(errno == EWOULDBLOCK || errno == ETIMEDOUT))
{
CwxErrGuard guard;
stream.close ();
}
return result;
}
