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Fixed SF.net bug #3552839, check_procs: added -k option to ignore kernel threads

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This commit fixes sourceforge.net bug #3552839.
It adds a -k|--no-kthreads option to ignore kernel thread processes.
Please note: currently this feature only works for GNU/Linux systems (due to the fact I have no other systems to test/develop on)
Sorry for that, but I'm sure this can be accomplished by somebody else ;-)
This commit is contained in:
Richard Leitner 2013-05-29 16:49:59 +02:00 committed by Holger Weiss
parent f73e9f7b22
commit 3931bd9500
1 changed files with 29 additions and 2 deletions
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31
plugins/check_procs.c
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@ -65,6 +65,10 @@ int options = 0; /* bitmask of filter criteria to test against */
#define PCPU 256
#define ELAPSED 512
#define EREG_ARGS 1024
#define KTHREAD_PARENT "kthreadd" /* the parent process of kernel threads:
ppid of procs are compared to pid of this proc*/
/* Different metrics */
char *metric_name;
enum metric {
@ -90,6 +94,7 @@ regex_t re_args;
char *fmt;
char *fails;
char tmp[MAX_INPUT_BUFFER];
int kthread_filter = 0;
FILE *ps_input = NULL;
@ -105,6 +110,7 @@ main (int argc, char **argv)
int procuid = 0;
pid_t procpid = 0;
pid_t procppid = 0;
pid_t kthread_ppid = 0;
int procvsz = 0;
int procrss = 0;
int procseconds = 0;
@ -202,6 +208,21 @@ main (int argc, char **argv)
/* Ignore self */
if (mypid == procpid) continue;
/* filter kernel threads (childs of KTHREAD_PARENT)*/
/* TODO adapt for other OSes than GNU/Linux
sorry for not doing that, but I've no other OSes to test :-( */
if (kthread_filter == 1) {
/* get pid KTHREAD_PARENT */
if (kthread_ppid == 0 && !strcmp(procprog, KTHREAD_PARENT) )
kthread_ppid = procpid;
if (kthread_ppid == procppid) {
if (verbose >= 2)
printf ("Ignore kernel thread: pid=%d ppid=%d prog=%s args=%s\n", procpid, procppid, procprog, procargs);
continue;
}
}
if ((options & STAT) && (strstr (statopts, procstat)))
resultsum |= STAT;
if ((options & ARGS) && procargs && (strstr (procargs, args) != NULL))
@ -344,6 +365,7 @@ process_arguments (int argc, char **argv)
{"verbose", no_argument, 0, 'v'},
{"ereg-argument-array", required_argument, 0, CHAR_MAX+1},
{"input-file", required_argument, 0, CHAR_MAX+2},
{"no-kthreads", required_argument, 0, 'k'},
{0, 0, 0, 0}
};
@ -352,7 +374,7 @@ process_arguments (int argc, char **argv)
strcpy (argv[c], "-t");
while (1) {
c = getopt_long (argc, argv, "Vvht:c:w:p:s:u:C:a:z:r:m:P:",
c = getopt_long (argc, argv, "Vvhkt:c:w:p:s:u:C:a:z:r:m:P:",
longopts, &option);
if (c == -1 || c == EOF)
@ -496,6 +518,9 @@ process_arguments (int argc, char **argv)
}
usage4 (_("Metric must be one of PROCS, VSZ, RSS, CPU, ELAPSED!"));
case 'k': /* linux kernel thread filter */
kthread_filter = 1;
break;
case 'v': /* command */
verbose++;
break;
@ -671,6 +696,8 @@ print_help (void)
printf (" %s\n", _("Only scan for processes with args that contain the regex STRING."));
printf (" %s\n", "-C, --command=COMMAND");
printf (" %s\n", _("Only scan for exact matches of COMMAND (without path)."));
printf (" %s\n", "-k, --no-kthreads");
printf (" %s\n", _("Only scan for non kernel threads (works on Linux only)."));
printf(_("\n\
RANGEs are specified 'min:max' or 'min:' or ':max' (or 'max'). If\n\
@ -705,5 +732,5 @@ print_usage (void)
printf ("%s\n", _("Usage:"));
printf ("%s -w <range> -c <range> [-m metric] [-s state] [-p ppid]\n", progname);
printf (" [-u user] [-r rss] [-z vsz] [-P %%cpu] [-a argument-array]\n");
printf (" [-C command] [-t timeout] [-v]\n");
printf (" [-C command] [-k] [-t timeout] [-v]\n");
}