Shared Memory & Detach

[Keith Sammut]

Hi Sir,

We are using shared memory on the server side and obviously we need to
detach the segment once the server quits.....correct?

In order to quit the server we need to perform a blocking getchar()
call so we can quit the server using a key press. However, since this
is blocking the server will not accept any client requests at this
time. Is there any way around this please?

Regards,
Keith

[Joseph Cordina]

Hi,

  first you should not use a blocking getchar(), you really should trap termination signals since the common way of shutting down a server is to send it a SIGINT signal (or CRTL^C). Additionally even if you were blocking on a getchar(), you can always span off a different process to handle the connections.

Also you do not necessarily need to detach the memory since that is automatic on destruction of the process memory space, but you really need to IPCRM the shared memory on exiting.

Regards

Joseph Cordina

[Keith Sammut]

Thank you, this helped