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08-25-2010, 10:50 PM
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#1
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LQ Newbie
Registered: Aug 2010
Posts: 10
Rep: 
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Total amount of allocated SHM memory?
Is there an easy way in C to get the total amount of allocated SHM memory on a machine?
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08-26-2010, 03:57 PM
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#2
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Senior Member
Registered: Feb 2010
Location: /usa/ca/orange_county/lake_forest
Distribution: ArchBang, Google Android 2.1 + Motoblur (on Motortola Flipside), Google Chrome OS (on Cr-48)
Posts: 1,791
Rep: 
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It would probably be C's equivalent to the following shell command:
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08-26-2010, 05:03 PM
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#3
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Senior Member
Registered: May 2005
Posts: 4,386
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Quote:
Originally Posted by Kenny_Strawn
It would probably be C's equivalent to the following shell command:
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?????
Code:
file /dev/shm
/dev/shm: sticky directory
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08-26-2010, 05:11 PM
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#4
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Senior Member
Registered: May 2005
Posts: 4,386
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man 2 shmctl
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08-27-2010, 07:05 AM
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#5
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LQ Newbie
Registered: Aug 2010
Posts: 10
Original Poster
Rep:
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Quote:
Originally Posted by Sergei Steshenko
man 2 shmctl
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This is what I was looking for. Thanks! |
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08-27-2010, 05:33 PM
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#6
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LQ Newbie
Registered: Aug 2010
Posts: 10
Original Poster
Rep:
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Quote:
Originally Posted by Sergei Steshenko
man 2 shmctl
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Sorry this does not work. shmctl recognizes only System V shared memory and I am working with POSIX shm... Is there anything equivalent for POSIX shm? |
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08-27-2010, 06:02 PM
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#7
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Senior Member
Registered: May 2005
Posts: 4,386
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Quote:
Originally Posted by kresyzig
Sorry this does not work. shmctl recognizes only System V shared memory and I am working with POSIX shm... Is there anything equivalent for POSIX shm?
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Maybe
http://www.cs.cf.ac.uk/Dave/C/node27...00000000000000 . |
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08-28-2010, 02:34 AM
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#8
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LQ Newbie
Registered: Aug 2010
Posts: 10
Original Poster
Rep:
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Quote:
Originally Posted by Sergei Steshenko
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Finally I have used opendir("/dev/shm") combined with readdir_r to get the size of the pseudo-files in /dev/shm/ /. This is the only way I have found to compute the total amount of shared memory. That works fine, I just don't know if there is a more optimal method... |
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