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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 1.2 by pajs, Tue Feb 18 23:23:36 2003 UTC vs.
Revision 1.27 by tdb, Mon Oct 9 13:52:06 2006 UTC

#	Line 1 | Line 1
1	<	/*
2	<	* i-scream central monitoring system
3	<	* http://www.i-scream.org.uk
4	<	* Copyright (C) 2000-2002 i-scream
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.
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 <ukcprog.h>
27	–	#include <unistd.h>
28	–	#include <stdlib.h>
29	–	#include <sys/types.h>
27		#include <time.h>
31	–	#include <string.h>
28		#include "statgrab.h"
29	+	#include "tools.h"
30		#ifdef SOLARIS
31		#include <kstat.h>
32		#include <sys/sysinfo.h>
33	+	#include <string.h>
34		#endif
35	<	#ifdef FREEBSD
35	>	#if defined(LINUX) || defined(CYGWIN)
36	>	#include <stdio.h>
37	>	#endif
38	>	#if defined(FREEBSD) || defined(DFBSD)
39		#include <sys/sysctl.h>
40		#include <sys/dkstat.h>
41		#endif
42	+	#ifdef NETBSD
43	+	#include <sys/types.h>
44	+	#include <sys/param.h>
45	+	#include <sys/sysctl.h>
46	+	#include <sys/sched.h>
47	+	#endif
48	+	#ifdef OPENBSD
49	+	#include <sys/param.h>
50	+	#include <sys/sysctl.h>
51	+	#include <sys/dkstat.h>
52	+	#endif
53	+	#ifdef HPUX
54	+	#include <sys/param.h>
55	+	#include <sys/pstat.h>
56	+	#include <sys/dk.h>
57	+	#endif
58	+	#ifdef WIN32
59	+	#include <pdh.h>
60	+	#include "win32.h"
61	+	#endif
62
63	<	static cpu_states_t cpu_now;
63	>	static sg_cpu_stats cpu_now;
64		static int cpu_now_uninit=1;
65
66	<	cpu_states_t *get_cpu_totals(){
66	>	sg_cpu_stats *sg_get_cpu_stats(){
67
68	+	#ifdef HPUX
69	+	struct pst_dynamic pstat_dynamic;
70	+	int i;
71	+	#endif
72		#ifdef SOLARIS
73	<	kstat_ctl_t *kc;
74	<	kstat_t *ksp;
75	<	cpu_stat_t cs;
73	>	kstat_ctl_t *kc;
74	>	kstat_t *ksp;
75	>	cpu_stat_t cs;
76	>	#endif
77	>	#if defined(LINUX) || defined(CYGWIN)
78	>	FILE *f;
79	>	#endif
80	>	#ifdef ALLBSD
81	>	#if defined(NETBSD) || defined(OPENBSD)
82	>	int mib[2];
83	>	#endif
84	>	#ifdef NETBSD
85	>	u_int64_t cp_time[CPUSTATES];
86	>	#else
87	>	long cp_time[CPUSTATES];
88	>	#endif
89	>	size_t size;
90	>	#endif
91
92		cpu_now.user=0;
93	+	/* Not stored in linux or freebsd */
94		cpu_now.iowait=0;
95		cpu_now.kernel=0;
96		cpu_now.idle=0;
97	+	/* Not stored in linux, freebsd, hpux or windows */
98		cpu_now.swap=0;
99		cpu_now.total=0;
100	<	/* Not stored in solaris */
100	>	/* Not stored in solaris or windows */
101		cpu_now.nice=0;
102
103	<	if ((kc = kstat_open()) == NULL) {
104	<	return NULL;
105	<	}
106	<	for (ksp = kc->kc_chain; ksp!=NULL; ksp = ksp->ks_next) {
65	<	if ((strcmp(ksp->ks_module, "cpu_stat")) != 0) continue;
66	<	if (kstat_read(kc, ksp, &cs) == -1) {
67	<	continue;
68	<	}
69	<	cpu_now.user+=cs.cpu_sysinfo.cpu[CPU_USER];
70	<	cpu_now.iowait+=cs.cpu_sysinfo.cpu[CPU_WAIT];
71	<	cpu_now.kernel+=cs.cpu_sysinfo.cpu[CPU_KERNEL];
72	<	cpu_now.idle+=cs.cpu_sysinfo.cpu[CPU_IDLE];
73	<	cpu_now.swap+=cs.cpu_sysinfo.cpu[CPU_STATES];
103	>	#ifdef HPUX
104	>	if (pstat_getdynamic(&pstat_dynamic, sizeof(pstat_dynamic), 1, 0) == -1) {
105	>	sg_set_error_with_errno(SG_ERROR_PSTAT, "pstat_dynamic");
106	>	return NULL;
107		}
108	+	cpu_now.user   = pstat_dynamic.psd_cpu_time[CP_USER];
109	+	cpu_now.iowait = pstat_dynamic.psd_cpu_time[CP_WAIT];
110	+	cpu_now.kernel = pstat_dynamic.psd_cpu_time[CP_SSYS] + pstat_dynamic.psd_cpu_time[CP_SYS];
111	+	cpu_now.idle   = pstat_dynamic.psd_cpu_time[CP_IDLE];
112	+	cpu_now.nice   = pstat_dynamic.psd_cpu_time[CP_NICE];
113	+	for (i = 0; i < PST_MAX_CPUSTATES; i++) {
114	+	cpu_now.total += pstat_dynamic.psd_cpu_time[i];
115	+	}
116	+	#endif
117	+	#ifdef SOLARIS
118	+	if ((kc = kstat_open()) == NULL) {
119	+	sg_set_error(SG_ERROR_KSTAT_OPEN, NULL);
120	+	return NULL;
121	+	}
122	+	for (ksp = kc->kc_chain; ksp!=NULL; ksp = ksp->ks_next) {
123	+	if ((strcmp(ksp->ks_module, "cpu_stat")) != 0) continue;
124	+	if (kstat_read(kc, ksp, &cs) == -1) {
125	+	continue;
126	+	}
127	+	cpu_now.user+=(long long)cs.cpu_sysinfo.cpu[CPU_USER];
128	+	cpu_now.kernel+=(long long)cs.cpu_sysinfo.cpu[CPU_KERNEL];
129	+	cpu_now.idle+=(long long)cs.cpu_sysinfo.cpu[CPU_IDLE];
130	+	cpu_now.iowait+=(long long)cs.cpu_sysinfo.wait[W_IO]+(long long)cs.cpu_sysinfo.wait[W_PIO];
131	+	cpu_now.swap+=(long long)cs.cpu_sysinfo.wait[W_SWAP];
132	+	}
133
134		cpu_now.total=cpu_now.user+cpu_now.iowait+cpu_now.kernel+cpu_now.idle+cpu_now.swap;
135	<	cpu_now_uninit=0;
135	>
136	>	kstat_close(kc);
137	>	#endif
138	>	#if defined(LINUX) || defined(CYGWIN)
139	>	if ((f=fopen("/proc/stat", "r" ))==NULL) {
140	>	sg_set_error_with_errno(SG_ERROR_OPEN, "/proc/stat");
141	>	return NULL;
142	>	}
143	>	/* The very first line should be cpu */
144	>	if((fscanf(f, "cpu %lld %lld %lld %lld", \
145	>	&cpu_now.user, \
146	>	&cpu_now.nice, \
147	>	&cpu_now.kernel, \
148	>	&cpu_now.idle)) != 4){
149	>	sg_set_error(SG_ERROR_PARSE, "cpu");
150	>	fclose(f);
151	>	return NULL;
152	>	}
153
154	<	kstat_close(kc);
154	>	fclose(f);
155	>
156	>	cpu_now.total=cpu_now.user+cpu_now.nice+cpu_now.kernel+cpu_now.idle;
157		#endif
158	+	#ifdef ALLBSD
159	+	#if defined(FREEBSD) || defined(DFBSD)
160	+	size = sizeof cp_time;
161	+	if (sysctlbyname("kern.cp_time", &cp_time, &size, NULL, 0) < 0){
162	+	sg_set_error_with_errno(SG_ERROR_SYSCTLBYNAME, "kern.cp_time");
163	+	return NULL;
164	+	}
165	+	#else
166	+	mib[0] = CTL_KERN;
167	+	#ifdef NETBSD
168	+	mib[1] = KERN_CP_TIME;
169	+	#else
170	+	mib[1] = KERN_CPTIME;
171	+	#endif
172	+	size = sizeof cp_time;
173	+	if (sysctl(mib, 2, &cp_time, &size, NULL, 0) < 0) {
174	+	#ifdef NETBSD
175	+	sg_set_error_with_errno(SG_ERROR_SYSCTL,
176	+	"CTL_KERN.KERN_CP_TIME");
177	+	#else
178	+	sg_set_error_with_errno(SG_ERROR_SYSCTL,
179	+	"CTL_KERN.KERN_CPTIME");
180	+	#endif
181	+	return NULL;
182	+	}
183	+	#endif
184
185	+	cpu_now.user=cp_time[CP_USER];
186	+	cpu_now.nice=cp_time[CP_NICE];
187	+	cpu_now.kernel=cp_time[CP_SYS];
188	+	cpu_now.idle=cp_time[CP_IDLE];
189	+
190	+	cpu_now.total=cpu_now.user+cpu_now.nice+cpu_now.kernel+cpu_now.idle;
191	+
192	+	#endif
193	+	#ifdef WIN32
194	+	sg_set_error(SG_ERROR_UNSUPPORTED, "Win32");
195	+	return NULL;
196	+	#endif
197	+
198		cpu_now.systime=time(NULL);
199	+	cpu_now_uninit=0;
200
201	+
202		return &cpu_now;
203		}
204
205	<	cpu_states_t *get_cpu_diff(){
206	<	static cpu_states_t cpu_diff;
207	<	cpu_states_t cpu_then, *cpu_tmp;
205	>	sg_cpu_stats *sg_get_cpu_stats_diff(){
206	>	static sg_cpu_stats cpu_diff;
207	>	sg_cpu_stats cpu_then, *cpu_tmp;
208
209		if (cpu_now_uninit){
210	<	if((cpu_tmp=get_cpu_totals())==NULL){
211	<	/* Should get_cpu_totals fail */
210	>	if((cpu_tmp=sg_get_cpu_stats())==NULL){
211	>	/* Should sg_get_cpu_stats fail */
212		return NULL;
213		}
214		return cpu_tmp;
215		}
216
217
218	<	cpu_then.user=cpu_now.user;
219	<	cpu_then.kernel=cpu_now.kernel;
220	<	cpu_then.idle=cpu_now.idle;
221	<	cpu_then.iowait=cpu_now.iowait;
222	<	cpu_then.swap=cpu_now.swap;
223	<	cpu_then.nice=cpu_now.nice;
224	<	cpu_then.total=cpu_now.total;
225	<	cpu_then.systime=cpu_now.systime;
218	>	cpu_then.user=cpu_now.user;
219	>	cpu_then.kernel=cpu_now.kernel;
220	>	cpu_then.idle=cpu_now.idle;
221	>	cpu_then.iowait=cpu_now.iowait;
222	>	cpu_then.swap=cpu_now.swap;
223	>	cpu_then.nice=cpu_now.nice;
224	>	cpu_then.total=cpu_now.total;
225	>	cpu_then.systime=cpu_now.systime;
226
227	<	if((cpu_tmp=get_cpu_totals())==NULL){
227	>	if((cpu_tmp=sg_get_cpu_stats())==NULL){
228		return NULL;
229		}
230
#	Line 122 | Line 240 | cpu_states_t *get_cpu_diff(){
240		return &cpu_diff;
241		}
242
243	<	cpu_percent_t *cpu_percent_usage(){
244	<	static cpu_percent_t cpu_usage;
245	<	cpu_states_t *cs_ptr;
243	>	sg_cpu_percents *sg_get_cpu_percents(){
244	>	static sg_cpu_percents cpu_usage;
245	>	#ifndef WIN32
246	>	sg_cpu_stats *cs_ptr;
247
248	<	cs_ptr=get_cpu_diff();
248	>	cs_ptr=sg_get_cpu_stats_diff();
249		if(cs_ptr==NULL){
250		return NULL;
251		}
#	Line 138 | Line 257 | cpu_percent_t *cpu_percent_usage(){
257		cpu_usage.swap = ((float)cs_ptr->swap / (float)cs_ptr->total)*100;
258		cpu_usage.nice = ((float)cs_ptr->nice / (float)cs_ptr->total)*100;
259		cpu_usage.time_taken = cs_ptr->systime;
260	+	#else
261	+	double result;
262
263	<	return &cpu_usage;
263	>	if(read_counter_double(SG_WIN32_PROC_USER, &result)) {
264	>	sg_set_error(SG_ERROR_PDHREAD, PDH_USER);
265	>	return NULL;
266	>	}
267	>	cpu_usage.user = (float)result;
268	>	if(read_counter_double(SG_WIN32_PROC_PRIV, &result)) {
269	>	sg_set_error(SG_ERROR_PDHREAD, PDH_PRIV);
270	>	return NULL;
271	>	}
272	>	cpu_usage.kernel = (float)result;
273	>	if(read_counter_double(SG_WIN32_PROC_IDLE, &result)) {
274	>	sg_set_error(SG_ERROR_PDHREAD, PDH_IDLE);
275	>	return NULL;
276	>	}
277	>	/* win2000 does not have an idle counter, but does have %activity
278	>	* so convert it to idle */
279	>	cpu_usage.idle = 100 - (float)result;
280	>	if(read_counter_double(SG_WIN32_PROC_INT, &result)) {
281	>	sg_set_error(SG_ERROR_PDHREAD, PDH_INTER);
282	>	return NULL;
283	>	}
284	>	cpu_usage.iowait = (float)result;
285	>	#endif
286
287	+	return &cpu_usage;
288		}
289

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