src/libstatgrab/process_stats.c

/*
 * i-scream central monitoring system
 * http://www.i-scream.org
 * Copyright (C) 2000-2004 i-scream
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library 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
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
 * 02111-1307 USA
 *
 * $Id$
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "statgrab.h"
#if defined(SOLARIS) || defined(LINUX)
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <dirent.h>
#include <string.h>
#endif

#include "tools.h"
#ifdef SOLARIS
#include <procfs.h>
#include <limits.h>
#define PROC_LOCATION "/proc"
#define MAX_FILE_LENGTH PATH_MAX
#endif
#ifdef LINUX
#include <limits.h>
#define PROC_LOCATION "/proc"
#define MAX_FILE_LENGTH PATH_MAX
#endif
#ifdef ALLBSD
#include <kvm.h>
#include <sys/param.h>
#include <sys/sysctl.h>
#endif
#ifdef FREEBSD
#include <sys/user.h>
#endif

process_stat_t *get_process_stats(){

        static process_stat_t process_stat;

#if defined(SOLARIS) || defined(LINUX)
        DIR *proc_dir; 
        struct dirent *dir_entry;
        char filename[MAX_FILE_LENGTH];
        FILE *f;
#endif
#ifdef LINUX
        char *line_ptr;
#endif
#ifdef SOLARIS
        psinfo_t process_info;
#endif
#ifdef ALLBSD
        struct kinfo_proc *kp_stats;    
        kvm_t *kvmd;
        int procs;
#endif

        process_stat.sleeping=0;
        process_stat.running=0;
        process_stat.zombie=0;
        process_stat.stopped=0;
        process_stat.total=0;

#if defined(SOLARIS) || defined(LINUX)
        if((proc_dir=opendir(PROC_LOCATION))==NULL){
                return NULL;
        }

        while((dir_entry=readdir(proc_dir))!=NULL){
                if(atoi(dir_entry->d_name) == 0) continue;

#ifdef SOLARIS
                snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/psinfo", dir_entry->d_name);
#endif
#ifdef LINUX
                snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/status", dir_entry->d_name);
#endif

                if((f=fopen(filename, "r"))==NULL){
                        /* Open failed.. Process since vanished, or the path was too long. 
                         * Ah well, move onwards to the next one */
                        continue;
                }

#ifdef SOLARIS
                fread(&process_info, sizeof(psinfo_t), 1, f);
                if(process_info.pr_lwp.pr_state==1) process_stat.sleeping++;
                if(process_info.pr_lwp.pr_state==2) process_stat.running++;
                if(process_info.pr_lwp.pr_state==3) process_stat.zombie++;
                if(process_info.pr_lwp.pr_state==4) process_stat.stopped++;
                if(process_info.pr_lwp.pr_state==6) process_stat.running++;
#endif
#ifdef LINUX
                if((line_ptr=f_read_line(f, "State:"))==NULL){
                        fclose(f);
                        continue;
                }
                if((line_ptr=strchr(line_ptr, '\t'))==NULL){
                        fclose(f);
                        continue;
                }
                line_ptr++;
                if(line_ptr=='\0'){
                        fclose(f);
                        continue;
                }

                if(*line_ptr=='S') process_stat.sleeping++;
                if(*line_ptr=='R') process_stat.running++;
                if(*line_ptr=='Z') process_stat.zombie++;
                if(*line_ptr=='T') process_stat.stopped++;
                if(*line_ptr=='D') process_stat.stopped++;
#endif  

                fclose(f);
        }
        closedir(proc_dir);
#endif
#ifdef ALLBSD
        if((kvmd = get_kvm()) == NULL){
                return NULL;
        }

        kp_stats=kvm_getprocs(kvmd, KERN_PROC_ALL, 0, &procs);

        while(procs--){
#ifdef FREEBSD5
                if (kp_stats[procs].ki_stat == SSLEEP) process_stat.sleeping++;
                if (kp_stats[procs].ki_stat == SWAIT) process_stat.sleeping++;
                if (kp_stats[procs].ki_stat == SLOCK) process_stat.sleeping++;
                if (kp_stats[procs].ki_stat == SRUN) process_stat.running++;
                if (kp_stats[procs].ki_stat == SIDL) process_stat.running++;
                if (kp_stats[procs].ki_stat == SZOMB) process_stat.zombie++;
                if (kp_stats[procs].ki_stat == SSTOP) process_stat.stopped++;
                
#else
                if (kp_stats[procs].kp_proc.p_stat == SSLEEP) process_stat.sleeping++;  
                if (kp_stats[procs].kp_proc.p_stat == SRUN) process_stat.running++;
                if (kp_stats[procs].kp_proc.p_stat == SIDL) process_stat.running++;
                if (kp_stats[procs].kp_proc.p_stat == SZOMB) process_stat.zombie++;
                if (kp_stats[procs].kp_proc.p_stat == SSTOP) process_stat.stopped++;
#endif
        }
#endif

#ifdef CYGWIN
        return NULL;
#endif

        process_stat.total=process_stat.sleeping+process_stat.running+process_stat.zombie+process_stat.stopped;

        return &process_stat;
}
Revision:	1.18
Committed:	Mon Jan 19 16:49:21 2004 UTC (20 years, 4 months ago) by tdb
Content type:	text/plain
Branch:	MAIN
CVS Tags:	LIBSTATGRAB_0_8_2, LIBSTATGRAB_0_8_1
Changes since 1.17:	+2 -0 lines
Log Message:	A whole bunch of minor cosmetic changes.
#	User	Rev	Content
1	tdb	1.17	/*
2	pajs	1.1	* i-scream central monitoring system
3	tdb	1.8	* http://www.i-scream.org
4	tdb	1.17	* Copyright (C) 2000-2004 i-scream
5	pajs	1.1	*
6	tdb	1.17	* This library is free software; you can redistribute it and/or
7			* modify it under the terms of the GNU Lesser General Public
8			* License as published by the Free Software Foundation; either
9			* version 2.1 of the License, or (at your option) any later version.
10	pajs	1.1	*
11	tdb	1.17	* This library is distributed in the hope that it will be useful,
12	pajs	1.1	* but WITHOUT ANY WARRANTY; without even the implied warranty of
13	tdb	1.17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14			* Lesser General Public License for more details.
15	pajs	1.1	*
16	tdb	1.17	* You should have received a copy of the GNU Lesser General Public
17			* License along with this library; if not, write to the Free Software
18			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19			* 02111-1307 USA
20	tdb	1.18	*
21			* $Id$
22	pajs	1.1	*/
23
24			#ifdef HAVE_CONFIG_H
25			#include "config.h"
26			#endif
27
28	pajs	1.6	#include "statgrab.h"
29			#if defined(SOLARIS) \|\| defined(LINUX)
30	pajs	1.1	#include <stdio.h>
31			#include <stdlib.h>
32	pajs	1.5	#include <sys/types.h>
33			#include <dirent.h>
34			#include <string.h>
35	pajs	1.6	#endif
36	pajs	1.1
37	ats	1.13	#include "tools.h"
38	pajs	1.1	#ifdef SOLARIS
39			#include <procfs.h>
40			#include <limits.h>
41	pajs	1.5	#define PROC_LOCATION "/proc"
42			#define MAX_FILE_LENGTH PATH_MAX
43			#endif
44			#ifdef LINUX
45	ats	1.16	#include <limits.h>
46	pajs	1.1	#define PROC_LOCATION "/proc"
47			#define MAX_FILE_LENGTH PATH_MAX
48			#endif
49	ats	1.13	#ifdef ALLBSD
50	pajs	1.6	#include <kvm.h>
51			#include <sys/param.h>
52			#include <sys/sysctl.h>
53	ats	1.13	#endif
54			#ifdef FREEBSD
55	pajs	1.6	#include <sys/user.h>
56			#endif
57	pajs	1.1
58			process_stat_t *get_process_stats(){
59
60			static process_stat_t process_stat;
61
62	pajs	1.6	#if defined(SOLARIS) \|\| defined(LINUX)
63	pajs	1.1	DIR *proc_dir;
64			struct dirent *dir_entry;
65			char filename[MAX_FILE_LENGTH];
66			FILE *f;
67	pajs	1.6	#endif
68	pajs	1.5	#ifdef LINUX
69			char *line_ptr;
70			#endif
71			#ifdef SOLARIS
72			psinfo_t process_info;
73			#endif
74	ats	1.13	#ifdef ALLBSD
75	pajs	1.6	struct kinfo_proc *kp_stats;
76	ats	1.12	kvm_t *kvmd;
77	pajs	1.6	int procs;
78			#endif
79	pajs	1.1
80			process_stat.sleeping=0;
81			process_stat.running=0;
82			process_stat.zombie=0;
83			process_stat.stopped=0;
84	pajs	1.5	process_stat.total=0;
85	pajs	1.1
86	pajs	1.7	#if defined(SOLARIS) \|\| defined(LINUX)
87	pajs	1.1	if((proc_dir=opendir(PROC_LOCATION))==NULL){
88			return NULL;
89			}
90
91			while((dir_entry=readdir(proc_dir))!=NULL){
92			if(atoi(dir_entry->d_name) == 0) continue;
93	pajs	1.5
94			#ifdef SOLARIS
95	pajs	1.1	snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/psinfo", dir_entry->d_name);
96	pajs	1.5	#endif
97			#ifdef LINUX
98			snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/status", dir_entry->d_name);
99			#endif
100	pajs	1.1
101			if((f=fopen(filename, "r"))==NULL){
102			/* Open failed.. Process since vanished, or the path was too long.
103			* Ah well, move onwards to the next one */
104			continue;
105			}
106
107	pajs	1.5	#ifdef SOLARIS
108	pajs	1.1	fread(&process_info, sizeof(psinfo_t), 1, f);
109			if(process_info.pr_lwp.pr_state==1) process_stat.sleeping++;
110			if(process_info.pr_lwp.pr_state==2) process_stat.running++;
111			if(process_info.pr_lwp.pr_state==3) process_stat.zombie++;
112			if(process_info.pr_lwp.pr_state==4) process_stat.stopped++;
113			if(process_info.pr_lwp.pr_state==6) process_stat.running++;
114	pajs	1.5	#endif
115			#ifdef LINUX
116			if((line_ptr=f_read_line(f, "State:"))==NULL){
117			fclose(f);
118			continue;
119			}
120			if((line_ptr=strchr(line_ptr, '\t'))==NULL){
121			fclose(f);
122			continue;
123			}
124			line_ptr++;
125			if(line_ptr=='\0'){
126			fclose(f);
127			continue;
128			}
129
130			if(*line_ptr=='S') process_stat.sleeping++;
131			if(*line_ptr=='R') process_stat.running++;
132			if(*line_ptr=='Z') process_stat.zombie++;
133			if(*line_ptr=='T') process_stat.stopped++;
134			if(*line_ptr=='D') process_stat.stopped++;
135			#endif
136
137			fclose(f);
138	pajs	1.1	}
139			closedir(proc_dir);
140	pajs	1.6	#endif
141	ats	1.13	#ifdef ALLBSD
142	ats	1.12	if((kvmd = get_kvm()) == NULL){
143	pajs	1.6	return NULL;
144			}
145
146			kp_stats=kvm_getprocs(kvmd, KERN_PROC_ALL, 0, &procs);
147	pajs	1.1
148	pajs	1.6	while(procs--){
149	pajs	1.9	#ifdef FREEBSD5
150			if (kp_stats[procs].ki_stat == SSLEEP) process_stat.sleeping++;
151	pajs	1.11	if (kp_stats[procs].ki_stat == SWAIT) process_stat.sleeping++;
152			if (kp_stats[procs].ki_stat == SLOCK) process_stat.sleeping++;
153	pajs	1.9	if (kp_stats[procs].ki_stat == SRUN) process_stat.running++;
154			if (kp_stats[procs].ki_stat == SIDL) process_stat.running++;
155			if (kp_stats[procs].ki_stat == SZOMB) process_stat.zombie++;
156			if (kp_stats[procs].ki_stat == SSTOP) process_stat.stopped++;
157	pajs	1.11
158	pajs	1.9	#else
159	pajs	1.6	if (kp_stats[procs].kp_proc.p_stat == SSLEEP) process_stat.sleeping++;
160			if (kp_stats[procs].kp_proc.p_stat == SRUN) process_stat.running++;
161			if (kp_stats[procs].kp_proc.p_stat == SIDL) process_stat.running++;
162			if (kp_stats[procs].kp_proc.p_stat == SZOMB) process_stat.zombie++;
163			if (kp_stats[procs].kp_proc.p_stat == SSTOP) process_stat.stopped++;
164	pajs	1.9	#endif
165	pajs	1.6	}
166	ats	1.15	#endif
167
168			#ifdef CYGWIN
169			return NULL;
170	pajs	1.6	#endif
171	pajs	1.4
172			process_stat.total=process_stat.sleeping+process_stat.running+process_stat.zombie+process_stat.stopped;
173	pajs	1.10
174	pajs	1.1	return &process_stat;
175			}