How to get the Process State using PID

rheosiva · 03-31-2009, 02:31 AM

Is there any Specific System library calls to do that in Linux..
Please tell if any API is available..

Hko · 03-31-2009, 02:46 AM

Just translate the shell command below to C (or whatever).

Code:

grep ^State /proc/<pid>/status

rheosiva · 03-31-2009, 03:04 AM

thanks...
But still i am searching for any API which can do this..

wje_lq · 03-31-2009, 07:43 AM

Use these:

Code:

sprintf()      /* to form /proc/desired_pid/status */
open()         /* the file whose name you just formed */
read()         /* to get the data */
close()        /* to close the file */

... then whatever normal C manipulations you want to focus in on the data you want within the data you've just read.

It's as simple and straightforward an API as you could want.

rheosiva · 04-01-2009, 03:05 AM

thanks .... It really helps