handling tcp and udp simultaneoulsy

[itzsug]

Hi,

I have UDP client/server program which sends a video file from server to client.
I want to send a parameter from client to server after every 2048 bytes? How can i do this? The parameter is must, so i think sending parameter using TCP would be better.

can we use tcp and udp in a client/server simultaneoulsy?

please kindly suggest some examples?

Thanks.

from
Jagadish

[dhee]

itzsug wrote:

Hi,

I have UDP client/server program which sends a video file from server to client.
I want to send a parameter from client to server after every 2048 bytes? How can i do this? The parameter is must, so i think sending parameter using TCP would be better.

can we use tcp and udp in a client/server simultaneoulsy?

please kindly suggest some examples?

Thanks.

from
Jagadish

The currect way to do this is to havea message structured so that you send 2048 bytes in the
udp stream followed by your magic token
struct stream {
char data[2048];
int magic_token;
};

copy your data from the stream into this structure and send it over.
\'man mmap\' if you think you cannot risk the latency of a copy operation.
you can use tcp and udp but not within the same connection flow. You can have a separate tcp control connection to send these \'parameters\' or \'tokens\' but you will need to synchronize them and that\'ll be another problem to solve..

dheeraj

[itzsug]

Thanks Dheeraj. The info was useful