Mem shize for a shared mem (shmget)

vijesh has asked for the wisdom of the Perl Monks concerning the following question:

Dear Monks, I use following program to get a shared mem location. How do I know how much size of shared mem is getting allocated? how possible is to release that mem size once I am done. -Thanks, Vijesh

my $id = shmget($key, $size, &IPC_CREAT | 0777 );
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Comment on Mem shize for a shared mem (shmget) Download Code

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Re: Mem shize for a shared mem (shmget) by Anonymous Monk on Dec 11, 2013 at 02:55 UTC
Hmm, it either allocates how much you ask for, or it fails? What does man shmget say?	[reply]
Re^2: Mem shize for a shared mem (shmget) by vijesh (Novice) on Dec 11, 2013 at 04:01 UTC
it just returns the shared mem location. Does not say anything about the size. please find some perld `DB<1> n main::(shm.pl:10): my $id = shmget( $key, $size, &IPC_CREAT \| 077 +7 ); DB<1> x shmget( $key, $size, &IPC_CREAT \| 0777 ); 0 9142327 DB<2> p $key 90 DB<4> p $size 100 DB<5>` [download]	[reply] [d/l]
Re^3: Mem shize for a shared mem (shmget) by vijesh (Novice) on Dec 12, 2013 at 08:36 UTC
hello Monks, any help will be appreciated. -Thanks	[reply]