+ wxFD_ZERO(&readfds);
+ wxFD_ZERO(&writefds);
+ wxFD_ZERO(&exceptfds);
+ wxFD_SET(m_fd, &readfds);
+ if (flags & wxSOCKET_OUTPUT_FLAG || flags & wxSOCKET_CONNECTION_FLAG)
+ wxFD_SET(m_fd, &writefds);
+ wxFD_SET(m_fd, &exceptfds);
+
+ /* Check 'sticky' CONNECTION flag first */
+ result |= wxSOCKET_CONNECTION_FLAG & m_detected;
+
+ /* If we have already detected a LOST event, then don't try
+ * to do any further processing.
+ */
+ if ((m_detected & wxSOCKET_LOST_FLAG) != 0)
+ {
+ m_establishing = false;
+ return (wxSOCKET_LOST_FLAG & flags);
+ }
+
+ /* Try select now */
+ if (select(m_fd + 1, &readfds, &writefds, &exceptfds, &tv) < 0)
+ {
+ /* What to do here? */
+ return (result & flags);
+ }
+
+ /* Check for exceptions and errors */
+ if (wxFD_ISSET(m_fd, &exceptfds))
+ {
+ m_establishing = false;
+ m_detected = wxSOCKET_LOST_FLAG;
+
+ /* LOST event: Abort any further processing */
+ return (wxSOCKET_LOST_FLAG & flags);
+ }
+
+ /* Check for readability */
+ if (wxFD_ISSET(m_fd, &readfds))
+ {
+ result |= wxSOCKET_INPUT_FLAG;
+
+ if (m_server && m_stream)
+ {
+ /* This is a TCP server socket that detected a connection.
+ While the INPUT_FLAG is also set, it doesn't matter on
+ this kind of sockets, as we can only Accept() from them. */
+ m_detected |= wxSOCKET_CONNECTION_FLAG;
+ }
+ }
+
+ /* Check for writability */
+ if (wxFD_ISSET(m_fd, &writefds))
+ {
+ if (m_establishing && !m_server)
+ {
+ int error;
+ SOCKOPTLEN_T len = sizeof(error);
+ m_establishing = false;
+ getsockopt(m_fd, SOL_SOCKET, SO_ERROR, (char*)&error, &len);