libstatgrab/examples/process_snapshot.c

/*
 * i-scream libstatgrab
 * http://www.i-scream.org
 * Copyright (C) 2000-2004 i-scream
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * $Id: process_snapshot.c,v 1.9 2004/04/07 15:50:25 tdb Exp $
 */

#include <stdio.h>
#include <statgrab.h>
#include <stdlib.h>
#include <unistd.h>

int main(){
        sg_process_stats *ps;
        int ps_size;
        int x;
        char *state = NULL;

        /* Initialise statgrab */
        sg_init();

        /* Drop setuid/setgid privileges. */
        if (sg_drop_privileges() != 0) {
                perror("Error. Failed to drop privileges");
                return 1;
        }

        ps = sg_get_process_stats(&ps_size);

        if(ps == NULL){
                fprintf(stderr, "Failed to get process snapshot\n");
                exit(1);
        }

        qsort(ps, ps_size, sizeof *ps, sg_process_compare_pid);

        printf("%5s %5s %5s %5s %5s %5s %5s %6s %6s %9s %-10s %-4s %-8s %-20s %s\n",
                "pid", "ppid", "pgid", "uid", "euid", "gid", "egid", "size", "res", "time", "cpu", "nice", "state", "name", "title");

        for(x=0;x<ps_size;x++){
                switch (ps->state) {
                case SG_PROCESS_STATE_RUNNING:
                        state = "RUNNING";
                        break;
                case SG_PROCESS_STATE_SLEEPING:
                        state = "SLEEPING";
                        break;
                case SG_PROCESS_STATE_STOPPED:
                        state = "STOPPED";
                        break;
                case SG_PROCESS_STATE_ZOMBIE:
                        state = "ZOMBIE";
                        break;
                case SG_PROCESS_STATE_UNKNOWN:
                default:
                        state = "UNKNOWN";
                        break;
                }
                printf("%5d %5d %5d %5d %5d %5d %5d %5dM %5dM %8ds %10f %4d %-8s %-20s %s\n",
                        (int)ps->pid, (int)ps->parent, (int)ps->pgid, (int)ps->uid,
                        (int)ps->euid, (int)ps->gid, (int)ps->egid,
                        (int)(ps->proc_size / (1024*1024)),
                        (int)(ps->proc_resident / (1024*1024)),
                        (int)ps->time_spent, (float)ps->cpu_percent,
                        (int)ps->nice, state,
                        ps->process_name, ps->proctitle);
                ps++;
        }
        return 0;
}
Revision:	1.10
Committed:	Thu Apr 8 13:16:04 2004 UTC (20 years ago) by ats
Content type:	text/plain
Branch:	MAIN
CVS Tags:	LIBSTATGRAB_0_17, LIBSTATGRAB_0_16, LIBSTATGRAB_0_15, LIBSTATGRAB_0_14, LIBSTATGRAB_0_13, LIBSTATGRAB_0_12, LIBSTATGRAB_0_11_1, LIBSTATGRAB_0_11, LIBSTATGRAB_0_10_3, LIBSTATGRAB_0_10_2, LIBSTATGRAB_0_10_1, LIBSTATGRAB_0_10, HEAD
Changes since 1.9:	+3 -1 lines
Log Message:	Nuke sg_process_sort, and make the process stats example demonstrate how to sort using the compare functions and qsort.
#	Content
1	/*
2	* i-scream libstatgrab
3	* http://www.i-scream.org
4	* Copyright (C) 2000-2004 i-scream
5	*
6	* This program is free software; you can redistribute it and/or
7	* modify it under the terms of the GNU General Public License
8	* as published by the Free Software Foundation; either version 2
9	* of the License, or (at your option) any later version.
10	*
11	* This program is distributed in the hope that it will be useful,
12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14	* GNU General Public License for more details.
15	*
16	* You should have received a copy of the GNU General Public License
17	* along with this program; if not, write to the Free Software
18	* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19	*
20	* $Id: process_snapshot.c,v 1.9 2004/04/07 15:50:25 tdb Exp $
21	*/
22
23	#include <stdio.h>
24	#include <statgrab.h>
25	#include <stdlib.h>
26	#include <unistd.h>
27
28	int main(){
29	sg_process_stats *ps;
30	int ps_size;
31	int x;
32	char *state = NULL;
33
34	/* Initialise statgrab */
35	sg_init();
36
37	/* Drop setuid/setgid privileges. */
38	if (sg_drop_privileges() != 0) {
39	perror("Error. Failed to drop privileges");
40	return 1;
41	}
42
43	ps = sg_get_process_stats(&ps_size);
44
45	if(ps == NULL){
46	fprintf(stderr, "Failed to get process snapshot\n");
47	exit(1);
48	}
49
50	qsort(ps, ps_size, sizeof *ps, sg_process_compare_pid);
51
52	printf("%5s %5s %5s %5s %5s %5s %5s %6s %6s %9s %-10s %-4s %-8s %-20s %s\n",
53	"pid", "ppid", "pgid", "uid", "euid", "gid", "egid", "size", "res", "time", "cpu", "nice", "state", "name", "title");
54
55	for(x=0;x<ps_size;x++){
56	switch (ps->state) {
57	case SG_PROCESS_STATE_RUNNING:
58	state = "RUNNING";
59	break;
60	case SG_PROCESS_STATE_SLEEPING:
61	state = "SLEEPING";
62	break;
63	case SG_PROCESS_STATE_STOPPED:
64	state = "STOPPED";
65	break;
66	case SG_PROCESS_STATE_ZOMBIE:
67	state = "ZOMBIE";
68	break;
69	case SG_PROCESS_STATE_UNKNOWN:
70	default:
71	state = "UNKNOWN";
72	break;
73	}
74	printf("%5d %5d %5d %5d %5d %5d %5d %5dM %5dM %8ds %10f %4d %-8s %-20s %s\n",
75	(int)ps->pid, (int)ps->parent, (int)ps->pgid, (int)ps->uid,
76	(int)ps->euid, (int)ps->gid, (int)ps->egid,
77	(int)(ps->proc_size / (1024*1024)),
78	(int)(ps->proc_resident / (1024*1024)),
79	(int)ps->time_spent, (float)ps->cpu_percent,
80	(int)ps->nice, state,
81	ps->process_name, ps->proctitle);
82	ps++;
83	}
84	return 0;
85	}