> What type of error conditions/exceptions might occur > in the sending code that I need to watch for?
The paramaters you give may be unable to resolve from name to numbers. > Can I cache the domain lookup First do a DnsLookup for 'mydomain.com' and then use the IP address. Will be much faster afterward. > if sending a few packets in a short span? No problem except UDP is an unreliable protocol by design. So if you send too much packets in a short time interval, some may be lost, specially if there are speed differences in network speed between the sender and the receiver. A slow speed segment may cause packet drop. Network congestion can also result in packet drop. Multiple routes may cause packet order errors or duplicate packets. All this is not a matter of component but only the way UDP protocol has been designed. You application must be prepared to all those kind f errors. Or use TCP which doesn't suffer from any. Contribute to the SSL Effort. Visit http://www.overbyte.be/eng/ssl.html -- [EMAIL PROTECTED] Author of ICS (Internet Component Suite, freeware) Author of MidWare (Multi-tier framework, freeware) http://www.overbyte.be ----- Original Message ----- From: "Johnnie Norsworthy" <[EMAIL PROTECTED]> To: <twsocket@elists.org> Sent: Tuesday, August 01, 2006 9:26 PM Subject: [twsocket] Converting from Indy - UDP Send - DNS caching > I am converting a small remote logging project from Indy to ICS that > sends UDP packets. Following the example in UDPSend1.pas, I do the > following when I wish to send my string: > > WSocket.Proto := 'udp'; > WSocket.Addr := 'mydomain.com'; > WSocket.Port := '12007'; > WSocket.Connect; > WSocket.SendStr('mystring'); > > in the WSocket.DataSent() event: > WSocket.Close; > > What type of error conditions/exceptions might occur in the sending > code that I need to watch for? Is there ever a situation when .Connect > would fail due to an existing connection if sending a few packets in a > short span? > > Do I need to add #13 #10 to strings before sending? > > Can I cache the domain lookup after sending the first packet to speed > up the send process or is it helpful? If so, in what event do I grab > the looked up IP Address and from what property? > > Thanks! I am looking forward to using ICS. > > -Johnnie > -- > To unsubscribe or change your settings for TWSocket mailing list > please goto http://www.elists.org/mailman/listinfo/twsocket > Visit our website at http://www.overbyte.be -- To unsubscribe or change your settings for TWSocket mailing list please goto http://www.elists.org/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
