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, 7 months 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.
#	User	Rev	Content
1	tdb	1.1	/*
2	tdb	1.8	* i-scream libstatgrab
3	tdb	1.1	* 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	ats	1.10	* $Id: process_snapshot.c,v 1.9 2004/04/07 15:50:25 tdb Exp $
21	tdb	1.1	*/
22
23			#include <stdio.h>
24			#include <statgrab.h>
25			#include <stdlib.h>
26			#include <unistd.h>
27
28			int main(){
29	tdb	1.9	sg_process_stats *ps;
30			int ps_size;
31			int x;
32	tdb	1.4	char *state = NULL;
33	tdb	1.1
34			/* Initialise statgrab */
35	tdb	1.7	sg_init();
36	tdb	1.1
37			/* Drop setuid/setgid privileges. */
38	tdb	1.7	if (sg_drop_privileges() != 0) {
39	tdb	1.1	perror("Error. Failed to drop privileges");
40			return 1;
41			}
42
43	tdb	1.9	ps = sg_get_process_stats(&ps_size);
44	tdb	1.2
45	tdb	1.7	if(ps == NULL){
46	tdb	1.2	fprintf(stderr, "Failed to get process snapshot\n");
47			exit(1);
48			}
49	ats	1.10
50			qsort(ps, ps_size, sizeof *ps, sg_process_compare_pid);
51	tdb	1.1
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	tdb	1.9	for(x=0;x<ps_size;x++){
56	tdb	1.1	switch (ps->state) {
57	tdb	1.7	case SG_PROCESS_STATE_RUNNING:
58	tdb	1.1	state = "RUNNING";
59			break;
60	tdb	1.7	case SG_PROCESS_STATE_SLEEPING:
61	tdb	1.1	state = "SLEEPING";
62			break;
63	tdb	1.7	case SG_PROCESS_STATE_STOPPED:
64	tdb	1.1	state = "STOPPED";
65			break;
66	tdb	1.7	case SG_PROCESS_STATE_ZOMBIE:
67	tdb	1.1	state = "ZOMBIE";
68	tdb	1.3	break;
69	tdb	1.7	case SG_PROCESS_STATE_UNKNOWN:
70			default:
71	tdb	1.3	state = "UNKNOWN";
72	tdb	1.1	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	tdb	1.9	ps++;
83			}
84	tdb	1.1	return 0;
85			}