If you are connecting to another server you are using a client socket you do not need to make a server socket. If you need to listen for connections make use of a server socket. To give you an example your browser makes use of client sockets while apache makes use of server sockets. That is an over simplified view of things but hope it helps you understand things better.
Generally working with client sockets is easier.
best regards raditha
Tan Ai Leen wrote:
Hi all, I have this situation now that requires socket programming. But I am not sure how to realise the requirements in programming whether as a client or server The requirement is like this. I have to connect to an external server constantly to listen for incoming data. How can I make sure that the connection is there all the time? Upon receiving the message, I will have to response back an acknowledgement that the message is received. I can also send data to the server. From my requirements, I understand that there will only be one connection. Therefore the data exchange need not be in sequence.
Currently, what I have is a server programmed using the socket library. Server logic : socket_create socket_bind socket_listen while(true) { socket_select if(new connection) { add to connections array } else { if(can read) { read incoming response back } else { //error or connection close if(error) { print error } else { print connection close remove from connections array } } } } I am planning to include a check somewhere in the codes for maintaining the connection between my server and the other server. Where should I place it? Also, I need to initiate a connection to the external server and then listen. Where should this piece of code be insert at? Is this the right approach? Or I am over killing by writing a server if this can be handle in easier manner. Hope that I have been clear in the above.
Thanks for helping Ai Leen
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