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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 1.3 by tdb, Thu Feb 20 13:19:52 2003 UTC vs.
Revision 1.17 by tdb, Mon Jan 19 16:49:21 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
24		#include "config.h"
25		#endif
26
25	–	#include <stdio.h>
26	–	#include <unistd.h>
27	–	#include <stdlib.h>
28	–	#include <sys/types.h>
27		#include <time.h>
30	–	#include <string.h>
28		#include "statgrab.h"
29		#ifdef SOLARIS
30		#include <kstat.h>
31		#include <sys/sysinfo.h>
32	+	#include <string.h>
33		#endif
34	+	#if defined(LINUX) || defined(CYGWIN)
35	+	#include <stdio.h>
36	+	#endif
37		#ifdef FREEBSD
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
48		static cpu_states_t cpu_now;
49		static int cpu_now_uninit=1;
#	Line 46 | Line 53 | cpu_states_t *get_cpu_totals(){
53		#ifdef SOLARIS
54		kstat_ctl_t *kc;
55		kstat_t *ksp;
56	<	cpu_stat_t cs;
57	<
56	>	cpu_stat_t cs;
57	>	#endif
58	>	#if defined(LINUX) || defined(CYGWIN)
59	>	FILE *f;
60	>	#endif
61	>	#ifdef ALLBSD
62	>	#ifndef FREEBSD
63	>	int mib[2];
64	>	#endif
65	>	#ifdef NETBSD
66	>	u_int64_t cp_time[CPUSTATES];
67	>	#else
68	>	long cp_time[CPUSTATES];
69	>	#endif
70	>	size_t size;
71	>	#endif
72	>
73		cpu_now.user=0;
74	+	/* Not stored in linux or freebsd */
75		cpu_now.iowait=0;
76		cpu_now.kernel=0;
77		cpu_now.idle=0;
78	+	/* Not stored in linux or freebsd */
79		cpu_now.swap=0;
80		cpu_now.total=0;
81		/* Not stored in solaris */
82		cpu_now.nice=0;
83
84	+	#ifdef SOLARIS
85		if ((kc = kstat_open()) == NULL) {
86		return NULL;
87		}
#	Line 65 | Line 90 | cpu_states_t *get_cpu_totals(){
90		if (kstat_read(kc, ksp, &cs) == -1) {
91		continue;
92		}
93	<	cpu_now.user+=cs.cpu_sysinfo.cpu[CPU_USER];
94	<	cpu_now.iowait+=cs.cpu_sysinfo.cpu[CPU_WAIT];
95	<	cpu_now.kernel+=cs.cpu_sysinfo.cpu[CPU_KERNEL];
96	<	cpu_now.idle+=cs.cpu_sysinfo.cpu[CPU_IDLE];
97	<	cpu_now.swap+=cs.cpu_sysinfo.cpu[CPU_STATES];
93	>	cpu_now.user+=(long long)cs.cpu_sysinfo.cpu[CPU_USER];
94	>	cpu_now.iowait+=(long long)cs.cpu_sysinfo.cpu[CPU_WAIT];
95	>	cpu_now.kernel+=(long long)cs.cpu_sysinfo.cpu[CPU_KERNEL];
96	>	cpu_now.idle+=(long long)cs.cpu_sysinfo.cpu[CPU_IDLE];
97	>	cpu_now.swap+=(long long)cs.cpu_sysinfo.cpu[CPU_STATES];
98		}
99
100		cpu_now.total=cpu_now.user+cpu_now.iowait+cpu_now.kernel+cpu_now.idle+cpu_now.swap;
101	<	cpu_now_uninit=0;
77	<
101	>
102		kstat_close(kc);
103		#endif
104	+	#if defined(LINUX) || defined(CYGWIN)
105	+	if ((f=fopen("/proc/stat", "r" ))==NULL) {
106	+	return NULL;
107	+	}
108	+	/* The very first line should be cpu */
109	+	if((fscanf(f, "cpu %lld %lld %lld %lld", \
110	+	&cpu_now.user, \
111	+	&cpu_now.nice, \
112	+	&cpu_now.kernel, \
113	+	&cpu_now.idle)) != 4){
114	+	fclose(f);
115	+	return NULL;
116	+	}
117
118	+	fclose(f);
119	+
120	+	cpu_now.total=cpu_now.user+cpu_now.nice+cpu_now.kernel+cpu_now.idle;
121	+	#endif
122	+	#ifdef ALLBSD
123	+	#ifdef FREEBSD
124	+	size = sizeof cp_time;
125	+	if (sysctlbyname("kern.cp_time", &cp_time, &size, NULL, 0) < 0){
126	+	return NULL;
127	+	}
128	+	#else
129	+	mib[0] = CTL_KERN;
130	+	mib[1] = KERN_CP_TIME;
131	+	size = sizeof cp_time;
132	+	if (sysctl(mib, 2, &cp_time, &size, NULL, 0) < 0) {
133	+	return NULL;
134	+	}
135	+	#endif
136	+
137	+	cpu_now.user=cp_time[CP_USER];
138	+	cpu_now.nice=cp_time[CP_NICE];
139	+	cpu_now.kernel=cp_time[CP_SYS];
140	+	cpu_now.idle=cp_time[CP_IDLE];
141	+
142	+	cpu_now.total=cpu_now.user+cpu_now.nice+cpu_now.kernel+cpu_now.idle;
143	+
144	+	#endif
145	+
146		cpu_now.systime=time(NULL);
147	+	cpu_now_uninit=0;
148	+
149
150		return &cpu_now;
151		}

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