how to kill a process in C++?

mimithebrain · 06-16-2004, 04:17 PM

Well...
What kind of call do I do in c++ to kill a command/process?

Have a nice program I wanna make

infamous41md · 06-16-2004, 04:21 PM

'man kill'

, send the SIGKILL signal.

jim mcnamara · 06-16-2004, 04:36 PM

There are two man pages on kill. The one you want is prolly:

Quote:

NAME
kill(), raise() - send a signal to a process or a group of processes

SYNOPSIS
#include <signal.h>

int kill(pid_t pid, int sig);

int raise(int sig);

DESCRIPTION
The kill() system call sends a signal to a process or a group of
processes, as specified by pid. The signal to be sent is specified by
sig and is either one from the list given in signal(2), or 0.

You would include <signal.h> and send the SIGKILL message.

mimithebrain · 06-16-2004, 04:51 PM

what is raise() for...

and...

how do a program collect all the process it (the program) can kill/renice
e.g., if your not root and are searching for the processes which you have permission over?

Forgot one thing too

how do you renice?
renice() ?

time elapse for answer was below 30 minutes

Jeremie, your site is SO cool!

jim mcnamara · 06-16-2004, 05:30 PM

raise() sends a signal to the process itself.

You can kill only those processes you own, unless you have privilege.

Code:

ps -ef | grep "mimithebrain"

will show you processes you own - with the exception of sshd sessions.

mimithebrain · 06-16-2004, 05:34 PM

Result:
mimithe 2516 2390 0 15:04 ? 00:00:00 kdeinit: kio_file file /tmp/ksocket-mimithebrain/klauncherRKyNya.slave-socket /tmp/ksocket-mimithebrain/konquerorTaiIza.slave-socket
mimithe 2552 2390 0 15:30 ? 00:00:00 kdeinit: kio_http http /tmp/ksocket-mimithebrain/klauncherRKyNya.slave-socket /tmp/ksocket-mimithebrain/konquerorUj8Lsb.slave-socket
mimithe 2553 2390 0 15:30 ? 00:00:00 kdeinit: kio_http http /tmp/ksocket-mimithebrain/klauncherRKyNya.slave-socket /tmp/ksocket-mimithebrain/konquerorFphKab.slave-socket
mimithe 2554 2390 0 15:30 ? 00:00:00 kdeinit: kio_http http /tmp/ksocket-mimithebrain/klauncherRKyNya.slave-socket /tmp/ksocket-mimithebrain/konqueror8IUGla.slave-socket
mimithe 2556 2390 0 15:30 ? 00:00:00 kdeinit: kio_http http /tmp/ksocket-mimithebrain/klauncherRKyNya.slave-socket /tmp/ksocket-mimithebrain/konquerorwDWKna.slave-socket
mimithe 2559 2390 0 15:30 ? 00:00:00 kdeinit: kio_http http /tmp/ksocket-mimithebrain/klauncherRKyNya.slave-socket /tmp/ksocket-mimithebrain/konquerorT1UnFb.slave-socket
mimithe 2560 2390 0 15:30 ? 00:00:00 kdeinit: kio_http http /tmp/ksocket-mimithebrain/klauncherRKyNya.slave-socket /tmp/ksocket-mimithebrain/konquerorguvwfa.slave-socket

nice, but I have way more processes than that
cool commands you told me, is there something of the same kind which permits you to get a same/close result?

a command in C++

mimithebrain · 06-17-2004, 03:45 PM

One more thing

how do you retrieve the running application PID (the one I'm programming?)

infamous41md · 06-17-2004, 04:54 PM

getpid() - get current proc pid
getppid() - get parent's pid

mimithebrain · 06-17-2004, 05:17 PM

right,
now how to get the memory usage of a certain PID?

mimithebrain · 06-17-2004, 05:20 PM

oops!!?!
I asked this question somewere else!!??!

sry for the inconvinience
the answer to this should be at
http://www.linuxquestions.org/questi...hreadid=191394
soon or later...