1) You create a process responsible for spawing your applications to monitor. That way, you create the parent-child relationship that you need for using waitpaid() with the options WUNTRACED and WCONTINUED.
Alas, this is not a viable option in my use case: I have no control over the original parent, nor over spawning process. Well, in those cases where I do have that control, waitpid works nicely of course. The other cases (no control) cause the headache ;-)
Quote:
2) You use the appropriate popen("ps...") code depending on which platform you are running. This can be achieved using old plain #ifdef, or using a strategy pattern.
That is what I do right now, but its ugly, and broken. For example:
So, the process 'sleep' is active in the first case, and suspended in the second. PS reports the same state - I have no means to distinguish. This seems to be valid for all apps which are sleeping or blocking in any way (which are many in our environment, mostly waiting for IO).
Hi all,
I have one requirement,I have two shell programs one is parent and the other one is child . from parent script i need to execute/trigger/call child script as background job. my requirement is after calling child script i want the child process information i.e PID of child weather it is... (8 Replies)
Hi guys,
I'm writing a script in which I have to get file from a remote host by ftp. The problem is that the remote machine could be very slow, not connected or ok. To resolve this problem, I write this:
echo "verbose on" > ftprap.cmd
echo "prompt " >> ftprap.cmd
echo "ascii"... (3 Replies)
Hi Expert,
I am not able to kill certain user process as root. I have tried using:
pkill -u uname
skill KILL -u uname
kill -9 PID
*** I have not using killall yet, since this server has more than 100 users online atm.
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND... (1 Reply)
I'm using
"Linux hostname 2.6.28-15-generic #49-Ubuntu SMP Tue Aug 18 18:40:08 UTC 2009 i686 GNU/Linux"
All the client machines will use Thin-client ,I will use my laptop for working and I will
mount my home directory from server to my laptop.
If I open the firefox in my laptop the... (1 Reply)
Hello Everyone,
I have a process that should be always running. Unfortunately, this process is getting down almost every 10 minutes. I want to make a script that verify the state of this process: If the process is up, the script shouldn't do nothing and if it's down he should run it.
Can... (3 Replies)
Hi Experts,
I am facing one problem here which is one process always stuck in running state which causes the other similar process to sleep state . This causes my system in hanged state.
On doing cat /proc/<pid>wchan showing the "__init_begin" in the output.
Can you please help me here... (0 Replies)
Hi Experts,
I am facing one problem here which is one process always stuck in running state which causes the other similar process to sleep state . This causes my system in hanged state.
On doing cat /proc/<pid>wchan showing the "__init_begin" in the output.
Can you please help me here... (1 Reply)
Hi Experts,
I am facing one problem here which is one process always stuck in running state which causes the other similar process to sleep state . This causes my system in hanged state.
On doing cat /proc/<pid>wchan showing the "__init_begin" in the output.
Can you please help me here... (6 Replies)
Discussion started by: naveeng
6 Replies
LEARN ABOUT OSF1
sleep
sleep(3) Library Functions Manual sleep(3)NAME
sleep - Suspends execution for an interval of time
LIBRARY
Standard C Library (libc.a) Threads Library (libpthreads.a)
SYNOPSIS
#include <unistd.h>
unsigned int sleep ( unsigned int seconds );
STANDARDS
Interfaces documented on this reference page conform to industry standards as follows:
sleep(): XPG4, XPG4-UNIX
Refer to the standards(5) reference page for more information about industry standards and associated tags.
PARAMETERS
Specifies the number of seconds to sleep.
DESCRIPTION
The sleep() function suspends execution of a process for the interval specified by the seconds parameter. The suspension time may be
longer than requested due to the scheduling of other activity by the system.
In a multi-threaded environment, the sleep() function is redefined so that only the calling thread is suspended.
RETURN VALUES
If the sleep() function returns because the requested time has elapsed, it returns 0 (zero). If the sleep() function returns because it
caught a signal, the function returns the number of seconds remaining in the suspension.
RELATED INFORMATION
Commands: wall(1), shutdown(8)sleep(1)
Functions: sigaction(2), alarm(3), pause(3)
Standards: standards(5) delim off
sleep(3)