Merge pull request #20 from jwatkins42/master

Removed duplicate socket initialization and clarified socket timeout.

C/src/xplaneConnect.c

@@ -140,8 +140,6 @@ struct xpcSocket openUDP(unsigned short port_number, const char *xpIP, unsigned
     }
 #elif (__APPLE__ || __linux)
     // Create a SOCKET
-    theSocket.sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
-    
     if ((theSocket.sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) == -1)
     {
         perror((char*) "ERROR: openUDP- ");
@@ -161,10 +159,10 @@ struct xpcSocket openUDP(unsigned short port_number, const char *xpIP, unsigned
 #endif
     
     //Set Timout
-	int msTimeOut = 500;
+	int usTimeOut = 500;
 
 #ifdef _WIN32
-	DWORD msTimeOutWin = 1;
+	DWORD msTimeOutWin = 1; // Minimum socket timeout in Windows is 1ms
 	setsockopt(theSocket.sock, SOL_SOCKET, SO_RCVTIMEO, (char *)&msTimeOutWin, sizeof(msTimeOutWin));
 #else
 	tv.tv_sec = 0;  /* Sec Timeout */