ihost/libstatgrab/page_stats.c

/* 
 * i-scream central monitoring system
 * http://www.i-scream.org.uk
 * Copyright (C) 2000-2002 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.
 */

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

#include <stdio.h>
#include "ukcprog.h"
#include <unistd.h>
#ifdef SOLARIS
#include <kstat.h>
#include <sys/sysinfo.h>
#endif
#ifdef LINUX
#include <string.h>
#endif
#ifdef FREEBSD
#include <sys/types.h>
#include <sys/sysctl.h>
#endif

#define WAIT_TIME_IN_SECS 1

char *get_page_stats(){
        char *xml_page_stats;
        int swap_pageins;
        int swap_pageouts;
#ifdef SOLARIS
        kstat_ctl_t *kc;
        kstat_t *ksp;
        cpu_stat_t cs;
        uint_t swapin, swapout;
#endif
#ifdef LINUX
        FILE *f;
        char *line;
        long  swapin[2], swapout[2];
#endif
#ifdef FREEBSD
        size_t size;
        long swapin[2], swapout[2];
#endif


#ifdef SOLARIS
        if ((kc = kstat_open()) == NULL) {
                errf("kstat_open failure (%m)");
                return NULL;
        }
        for (ksp = kc->kc_chain; ksp!=NULL; ksp = ksp->ks_next) {
                if ((strcmp(ksp->ks_module, "cpu_stat")) != 0) continue;
                if (kstat_read(kc, ksp, &cs) == -1) {
                        errf("kstat read failure");
                        continue;
                }
        }

        swapin=cs.cpu_vminfo.pgswapin;
        swapout=cs.cpu_vminfo.pgswapout;

        sleep(WAIT_TIME_IN_SECS);

        if (kstat_chain_update(kc) == -1) {
                errf("Kstat update failure (%m)");
                return NULL;
        }
        for (ksp = kc->kc_chain; ksp!=NULL; ksp = ksp->ks_next) {
                if ((strcmp(ksp->ks_module, "cpu_stat")) != 0) continue;
                if (kstat_read(kc, ksp, &cs) == -1) {
                        errf("kstat read failure");
                        continue;
                }
        }
        if((kstat_close(kc)) != 0){
                errf("Failed to close kstat control structure (%m)");
                return NULL;
        }
        swap_pageins=(cs.cpu_vminfo.pgswapin-swapin)/WAIT_TIME_IN_SECS;
        swap_pageouts=(cs.cpu_vminfo.pgswapout-swapout)/WAIT_TIME_IN_SECS;
#endif
#ifdef LINUX
       if ((f=fopen("/proc/stat", "r" ))==NULL) {
                errf("Failed to open /proc/stat (%m)");
                return NULL;
        }
        while((line=fpgetline(f)) != NULL){
                if (((strncmp(line,"swap",4)) == 0)) {
                        if((sscanf(line, "%*s %ld %ld", &swapin[0], &swapout[0])) != 2){
                                errf("Failed to read swap paging details (%m)");
                                return NULL;
                        }
                        break;
                }
        }
        if ((fclose(f)) != 0) {
                errf("Failed to close file (%m)");
                return NULL;
        }
        sleep(WAIT_TIME_IN_SECS);

        if ((f=fopen("/proc/stat", "r" ))==NULL) {
                errf("Failed to open /proc/stat (%m)");
                return NULL;
        }
        while((line=fpgetline(f)) != NULL){
                if (((strncmp(line,"swap",4)) == 0)) {
                        if((sscanf(line, "%*s %ld %ld", &swapin[1], &swapout[1])) != 2){
                                errf("Failed to read swap paging details (%m)");
                                return NULL;
                        }
                        break;
                }
        }
        if ((fclose(f)) != 0) {
                errf("Failed to close file (%m)");
                return NULL;
        }

        swap_pageins=(swapin[1]-swapin[0])/WAIT_TIME_IN_SECS;
        swap_pageouts=(swapout[1]-swapout[0])/WAIT_TIME_IN_SECS;
#endif
#ifdef FREEBSD
#define SWAP_IN_NAME "vm.stats.vm.v_swappgsin"
#define SWAP_OUT_NAME "vm.stats.vm.v_swappgsout"
        if (sysctlbyname(SWAP_IN_NAME, NULL, &size, NULL, NULL) < 0){
                errf("sysctlbyname failed to get total memory (%m)");
                return NULL;
        }
        if (sysctlbyname(SWAP_IN_NAME, &swapin[0], &size, NULL, NULL) < 0){
                errf("Failed to get total memory stats (%m)");
                return NULL;
        }
        if (sysctlbyname(SWAP_OUT_NAME, NULL, &size, NULL, NULL) < 0){
                errf("sysctlbyname failed to get total memory (%m)");
                return NULL;
        }
        if (sysctlbyname(SWAP_OUT_NAME, &swapout[0], &size, NULL, NULL) < 0){
                errf("Failed to get total memory stats (%m)");
                return NULL;
        }

        sleep(WAIT_TIME_IN_SECS);

        if (sysctlbyname(SWAP_IN_NAME, NULL, &size, NULL, NULL) < 0){
                errf("sysctlbyname failed to get total memory (%m)");
                return NULL;
        }
        if (sysctlbyname(SWAP_IN_NAME, &swapin[1], &size, NULL, NULL) < 0){
                errf("Failed to get total memory stats (%m)");
                return NULL;
        }
        if (sysctlbyname(SWAP_OUT_NAME, NULL, &size, NULL, NULL) < 0){
                errf("sysctlbyname failed to get total memory (%m)");
                return NULL;
        }
        if (sysctlbyname(SWAP_OUT_NAME, &swapout[1], &size, NULL, NULL) < 0){
                errf("Failed to get total memory stats (%m)");
                return NULL;
        }

        swap_pageins=(swapin[1]-swapin[0])/WAIT_TIME_IN_SECS;
        swap_pageouts=(swapout[1]-swapout[0])/WAIT_TIME_IN_SECS;

#endif
        

        if((xml_page_stats=strf("<pages><swapins>%d</swapins><swapouts>%d</swapouts></pages>", swap_pageins, swap_pageouts)) == NULL){
                errf("strf failed (%m)");
                return NULL;
        }
        return xml_page_stats;
}
Revision:	1.6
Committed:	Wed May 29 19:41:59 2002 UTC (22 years, 6 months ago) by tdb
Content type:	text/plain
Branch:	MAIN
CVS Tags:	IHOST_1_0_RC1
Changes since 1.5:	+4 -0 lines
Log Message:	This ihost now uses autoconf and automake to make a "normal" installation and distribution ;) It's now far easier to compile. To build from CVS :- aclocal autoheader autoconf automake -a -c Then for compiling (end users will only need to do this) :- ./configure make make install To build a distribution :- make dist
#	User	Rev	Content
1	tdb	1.4	/*
2			* i-scream central monitoring system
3	tdb	1.5	* http://www.i-scream.org.uk
4	tdb	1.4	* Copyright (C) 2000-2002 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
21	tdb	1.6	#ifdef HAVE_CONFIG_H
22			#include "config.h"
23			#endif
24
25	pajs	1.1	#include <stdio.h>
26			#include "ukcprog.h"
27			#include <unistd.h>
28			#ifdef SOLARIS
29			#include <kstat.h>
30			#include <sys/sysinfo.h>
31			#endif
32			#ifdef LINUX
33			#include <string.h>
34			#endif
35			#ifdef FREEBSD
36			#include <sys/types.h>
37			#include <sys/sysctl.h>
38			#endif
39
40			#define WAIT_TIME_IN_SECS 1
41
42			char *get_page_stats(){
43			char *xml_page_stats;
44			int swap_pageins;
45			int swap_pageouts;
46			#ifdef SOLARIS
47			kstat_ctl_t *kc;
48			kstat_t *ksp;
49			cpu_stat_t cs;
50			uint_t swapin, swapout;
51			#endif
52			#ifdef LINUX
53			FILE *f;
54			char *line;
55			long swapin[2], swapout[2];
56			#endif
57			#ifdef FREEBSD
58			size_t size;
59			long swapin[2], swapout[2];
60			#endif
61
62
63			#ifdef SOLARIS
64			if ((kc = kstat_open()) == NULL) {
65			errf("kstat_open failure (%m)");
66			return NULL;
67			}
68			for (ksp = kc->kc_chain; ksp!=NULL; ksp = ksp->ks_next) {
69			if ((strcmp(ksp->ks_module, "cpu_stat")) != 0) continue;
70			if (kstat_read(kc, ksp, &cs) == -1) {
71			errf("kstat read failure");
72			continue;
73			}
74			}
75
76			swapin=cs.cpu_vminfo.pgswapin;
77			swapout=cs.cpu_vminfo.pgswapout;
78
79			sleep(WAIT_TIME_IN_SECS);
80
81			if (kstat_chain_update(kc) == -1) {
82			errf("Kstat update failure (%m)");
83			return NULL;
84			}
85			for (ksp = kc->kc_chain; ksp!=NULL; ksp = ksp->ks_next) {
86			if ((strcmp(ksp->ks_module, "cpu_stat")) != 0) continue;
87			if (kstat_read(kc, ksp, &cs) == -1) {
88			errf("kstat read failure");
89			continue;
90			}
91			}
92	pajs	1.3	if((kstat_close(kc)) != 0){
93			errf("Failed to close kstat control structure (%m)");
94			return NULL;
95			}
96	pajs	1.1	swap_pageins=(cs.cpu_vminfo.pgswapin-swapin)/WAIT_TIME_IN_SECS;
97			swap_pageouts=(cs.cpu_vminfo.pgswapout-swapout)/WAIT_TIME_IN_SECS;
98			#endif
99			#ifdef LINUX
100			if ((f=fopen("/proc/stat", "r" ))==NULL) {
101			errf("Failed to open /proc/stat (%m)");
102			return NULL;
103			}
104			while((line=fpgetline(f)) != NULL){
105			if (((strncmp(line,"swap",4)) == 0)) {
106			if((sscanf(line, "%*s %ld %ld", &swapin[0], &swapout[0])) != 2){
107			errf("Failed to read swap paging details (%m)");
108			return NULL;
109			}
110			break;
111			}
112			}
113			if ((fclose(f)) != 0) {
114			errf("Failed to close file (%m)");
115			return NULL;
116			}
117			sleep(WAIT_TIME_IN_SECS);
118
119			if ((f=fopen("/proc/stat", "r" ))==NULL) {
120			errf("Failed to open /proc/stat (%m)");
121			return NULL;
122			}
123			while((line=fpgetline(f)) != NULL){
124			if (((strncmp(line,"swap",4)) == 0)) {
125			if((sscanf(line, "%*s %ld %ld", &swapin[1], &swapout[1])) != 2){
126			errf("Failed to read swap paging details (%m)");
127			return NULL;
128			}
129			break;
130			}
131			}
132			if ((fclose(f)) != 0) {
133			errf("Failed to close file (%m)");
134			return NULL;
135			}
136
137			swap_pageins=(swapin[1]-swapin[0])/WAIT_TIME_IN_SECS;
138			swap_pageouts=(swapout[1]-swapout[0])/WAIT_TIME_IN_SECS;
139			#endif
140			#ifdef FREEBSD
141			#define SWAP_IN_NAME "vm.stats.vm.v_swappgsin"
142			#define SWAP_OUT_NAME "vm.stats.vm.v_swappgsout"
143			if (sysctlbyname(SWAP_IN_NAME, NULL, &size, NULL, NULL) < 0){
144			errf("sysctlbyname failed to get total memory (%m)");
145			return NULL;
146			}
147			if (sysctlbyname(SWAP_IN_NAME, &swapin[0], &size, NULL, NULL) < 0){
148			errf("Failed to get total memory stats (%m)");
149			return NULL;
150			}
151			if (sysctlbyname(SWAP_OUT_NAME, NULL, &size, NULL, NULL) < 0){
152			errf("sysctlbyname failed to get total memory (%m)");
153			return NULL;
154			}
155			if (sysctlbyname(SWAP_OUT_NAME, &swapout[0], &size, NULL, NULL) < 0){
156			errf("Failed to get total memory stats (%m)");
157			return NULL;
158			}
159
160			sleep(WAIT_TIME_IN_SECS);
161
162			if (sysctlbyname(SWAP_IN_NAME, NULL, &size, NULL, NULL) < 0){
163			errf("sysctlbyname failed to get total memory (%m)");
164			return NULL;
165			}
166			if (sysctlbyname(SWAP_IN_NAME, &swapin[1], &size, NULL, NULL) < 0){
167			errf("Failed to get total memory stats (%m)");
168			return NULL;
169			}
170			if (sysctlbyname(SWAP_OUT_NAME, NULL, &size, NULL, NULL) < 0){
171			errf("sysctlbyname failed to get total memory (%m)");
172			return NULL;
173			}
174			if (sysctlbyname(SWAP_OUT_NAME, &swapout[1], &size, NULL, NULL) < 0){
175			errf("Failed to get total memory stats (%m)");
176			return NULL;
177			}
178
179			swap_pageins=(swapin[1]-swapin[0])/WAIT_TIME_IN_SECS;
180			swap_pageouts=(swapout[1]-swapout[0])/WAIT_TIME_IN_SECS;
181
182			#endif
183
184
185			if((xml_page_stats=strf("<pages><swapins>%d</swapins><swapouts>%d</swapouts></pages>", swap_pageins, swap_pageouts)) == NULL){
186			errf("strf failed (%m)");
187			return NULL;
188			}
189			return xml_page_stats;
190			}