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root/i-scream/projects/libstatgrab/src/libstatgrab/cpu_stats.c

Comparing projects/libstatgrab/src/libstatgrab/cpu_stats.c (file contents):
Revision 1.8 by pajs, Mon Mar 31 11:30:54 2003 UTC vs.
Revision 1.20 by ats, Mon Apr 5 15:40:14 2004 UTC

#	Line 1 | Line 1
1	<	/*
1	>	/*
2		* i-scream central monitoring system
3	<	* http://www.i-scream.org.uk
4	<	* Copyright (C) 2000-2002 i-scream
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.
6	>	* 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		*
11	<	* This program is distributed in the hope that it will be useful,
11	>	* This library 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.
13	>	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14	>	* Lesser 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.
16	>	* 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  02111-1307 USA
19	>	*
20	>	* $Id$
21		*/
22
23		#ifdef HAVE_CONFIG_H
#	Line 29 | Line 31
31		#include <sys/sysinfo.h>
32		#include <string.h>
33		#endif
34	<	#ifdef LINUX
34	>	#if defined(LINUX) || defined(CYGWIN)
35		#include <stdio.h>
36		#endif
37	+	#if defined(FREEBSD) || defined(DFBSD)
38	+	#include <sys/sysctl.h>
39	+	#include <sys/dkstat.h>
40	+	#endif
41	+	#ifdef NETBSD
42	+	#include <sys/types.h>
43	+	#include <sys/param.h>
44	+	#include <sys/sysctl.h>
45	+	#include <sys/sched.h>
46	+	#endif
47	+	#ifdef OPENBSD
48	+	#include <sys/param.h>
49	+	#include <sys/sysctl.h>
50	+	#include <sys/dkstat.h>
51	+	#endif
52
53	<	static cpu_states_t cpu_now;
53	>	static sg_cpu_stats cpu_now;
54		static int cpu_now_uninit=1;
55
56	<	cpu_states_t *get_cpu_totals(){
56	>	sg_cpu_stats *sg_get_cpu_stats(){
57
58		#ifdef SOLARIS
59		kstat_ctl_t *kc;
60		kstat_t *ksp;
61		cpu_stat_t cs;
62		#endif
63	<	#ifdef LINUX
63	>	#if defined(LINUX) || defined(CYGWIN)
64		FILE *f;
65		#endif
66	+	#ifdef ALLBSD
67	+	#if defined(NETBSD) || defined(OPENBSD)
68	+	int mib[2];
69	+	#endif
70	+	#ifdef NETBSD
71	+	u_int64_t cp_time[CPUSTATES];
72	+	#else
73	+	long cp_time[CPUSTATES];
74	+	#endif
75	+	size_t size;
76	+	#endif
77
78		cpu_now.user=0;
79	<	/* Not stored in linux */
79	>	/* Not stored in linux or freebsd */
80		cpu_now.iowait=0;
81		cpu_now.kernel=0;
82		cpu_now.idle=0;
83	<	/* Not stored in linux */
83	>	/* Not stored in linux or freebsd */
84		cpu_now.swap=0;
85		cpu_now.total=0;
86		/* Not stored in solaris */
#	Line 78 | Line 106 | cpu_states_t *get_cpu_totals(){
106
107		kstat_close(kc);
108		#endif
109	<	#ifdef LINUX
109	>	#if defined(LINUX) || defined(CYGWIN)
110		if ((f=fopen("/proc/stat", "r" ))==NULL) {
111		return NULL;
112		}
#	Line 96 | Line 124 | cpu_states_t *get_cpu_totals(){
124
125		cpu_now.total=cpu_now.user+cpu_now.nice+cpu_now.kernel+cpu_now.idle;
126		#endif
127	+	#ifdef ALLBSD
128	+	#if defined(FREEBSD) || defined(DFBSD)
129	+	size = sizeof cp_time;
130	+	if (sysctlbyname("kern.cp_time", &cp_time, &size, NULL, 0) < 0){
131	+	return NULL;
132	+	}
133	+	#else
134	+	mib[0] = CTL_KERN;
135	+	#ifdef NETBSD
136	+	mib[1] = KERN_CP_TIME;
137	+	#else
138	+	mib[1] = KERN_CPTIME;
139	+	#endif
140	+	size = sizeof cp_time;
141	+	if (sysctl(mib, 2, &cp_time, &size, NULL, 0) < 0) {
142	+	return NULL;
143	+	}
144	+	#endif
145
146	+	cpu_now.user=cp_time[CP_USER];
147	+	cpu_now.nice=cp_time[CP_NICE];
148	+	cpu_now.kernel=cp_time[CP_SYS];
149	+	cpu_now.idle=cp_time[CP_IDLE];
150	+
151	+	cpu_now.total=cpu_now.user+cpu_now.nice+cpu_now.kernel+cpu_now.idle;
152	+
153	+	#endif
154	+
155		cpu_now.systime=time(NULL);
156		cpu_now_uninit=0;
157
#	Line 104 | Line 159 | cpu_states_t *get_cpu_totals(){
159		return &cpu_now;
160		}
161
162	<	cpu_states_t *get_cpu_diff(){
163	<	static cpu_states_t cpu_diff;
164	<	cpu_states_t cpu_then, *cpu_tmp;
162	>	sg_cpu_stats *sg_get_cpu_stats_diff(){
163	>	static sg_cpu_stats cpu_diff;
164	>	sg_cpu_stats cpu_then, *cpu_tmp;
165
166		if (cpu_now_uninit){
167	<	if((cpu_tmp=get_cpu_totals())==NULL){
168	<	/* Should get_cpu_totals fail */
167	>	if((cpu_tmp=sg_get_cpu_stats())==NULL){
168	>	/* Should sg_get_cpu_stats fail */
169		return NULL;
170		}
171		return cpu_tmp;
#	Line 126 | Line 181 | cpu_states_t *get_cpu_diff(){
181		cpu_then.total=cpu_now.total;
182		cpu_then.systime=cpu_now.systime;
183
184	<	if((cpu_tmp=get_cpu_totals())==NULL){
184	>	if((cpu_tmp=sg_get_cpu_stats())==NULL){
185		return NULL;
186		}
187
#	Line 142 | Line 197 | cpu_states_t *get_cpu_diff(){
197		return &cpu_diff;
198		}
199
200	<	cpu_percent_t *cpu_percent_usage(){
201	<	static cpu_percent_t cpu_usage;
202	<	cpu_states_t *cs_ptr;
200	>	sg_cpu_percents *sg_get_cpu_percents(){
201	>	static sg_cpu_percents cpu_usage;
202	>	sg_cpu_stats *cs_ptr;
203
204	<	cs_ptr=get_cpu_diff();
204	>	cs_ptr=sg_get_cpu_stats_diff();
205		if(cs_ptr==NULL){
206		return NULL;
207		}

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