Linux (RH8) Socket Timeouts

Hello !

I have an application that works just fine, BUT after stopping the app
it takes about 30 seconds before I can connect again. There are two
deamons running on the same box and they communicate using TCP/IP
sockets. Here is some of my code

gw030_sockfd = socket(AF_INET, SOCK_STREAM, 0);
bind(gw030_sockfd, (struct sockaddr *) &gw030_address, gw030_len);
//gw030_address points to 127.0.0.1

listen(gw030_sockfd, 5);
client_sockfd = accept(gw030_sockfd, (struct sockaddr *)
&client_address, &client_len);

My problem is that after stopping both deamons it takes about 30-40
seconds before I can start them again. Upon trying the second daemon
(the client) cannot establish a TCP/IP connection using 'connect(..)'
to the other deamon. Other than that it works great, so I am
suspecting I fail to close or shutdown the socket properly. Right now
I'm simply doign a close(gw030_sockfd);

Any ideas ?

/Otto Blomqvist

Otto Blomqvist wrote:

> Hello !
>
> I have an application that works just fine, BUT after stopping the app
> it takes about 30 seconds before I can connect again. There are two
> deamons running on the same box and they communicate using TCP/IP
> sockets. Here is some of my code
>
> gw030_sockfd = socket(AF_INET, SOCK_STREAM, 0);
> bind(gw030_sockfd, (struct sockaddr *) &gw030_address, gw030_len);
> //gw030_address points to 127.0.0.1
>
> listen(gw030_sockfd, 5);
> client_sockfd = accept(gw030_sockfd, (struct sockaddr *)
> &client_address, &client_len);
>
> My problem is that after stopping both deamons it takes about 30-40
> seconds before I can start them again. Upon trying the second daemon
> (the client) cannot establish a TCP/IP connection using 'connect(..)'
> to the other deamon. Other than that it works great, so I am
> suspecting I fail to close or shutdown the socket properly. Right now
> I'm simply doign a close(gw030_sockfd);
>
> Any ideas ?
>
> /Otto Blomqvist


Try to use getsockopt with SO_REUSEADDR on the server side.

If you want linux to close faster a socket see:
http://howtos.linux.com/guides/solrh...ap6sec75.shtml


Regards.

Sebastien


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