ihost/libstatgrab/page_stats.c

/* 
 * i-scream central monitoring system
 * 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.
 */

#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:	1.4
Committed:	Sat May 18 18:15:56 2002 UTC (22 years, 6 months ago) by tdb
Content type:	text/plain
Branch:	MAIN
Changes since 1.3:	+19 -0 lines
Log Message:	i-scream is now licensed under the GPL. I've added the GPL headers to every source file, and put a full copy of the license in the appropriate places. I think I've covered everything. This is going to be a mad commit ;)
#	User	Rev	Content
1	tdb	1.4	/*
2			* i-scream central monitoring system
3			* Copyright (C) 2000-2002 i-scream
4			*
5			* This program is free software; you can redistribute it and/or
6			* modify it under the terms of the GNU General Public License
7			* as published by the Free Software Foundation; either version 2
8			* of the License, or (at your option) any later version.
9			*
10			* This program is distributed in the hope that it will be useful,
11			* but WITHOUT ANY WARRANTY; without even the implied warranty of
12			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13			* GNU General Public License for more details.
14			*
15			* You should have received a copy of the GNU General Public License
16			* along with this program; if not, write to the Free Software
17			* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18			*/
19
20	pajs	1.1	#include <stdio.h>
21			#include "ukcprog.h"
22			#include <unistd.h>
23			#ifdef SOLARIS
24			#include <kstat.h>
25			#include <sys/sysinfo.h>
26			#endif
27			#ifdef LINUX
28			#include <string.h>
29			#endif
30			#ifdef FREEBSD
31			#include <sys/types.h>
32			#include <sys/sysctl.h>
33			#endif
34
35			#define WAIT_TIME_IN_SECS 1
36
37			char *get_page_stats(){
38			char *xml_page_stats;
39			int swap_pageins;
40			int swap_pageouts;
41			#ifdef SOLARIS
42			kstat_ctl_t *kc;
43			kstat_t *ksp;
44			cpu_stat_t cs;
45			uint_t swapin, swapout;
46			#endif
47			#ifdef LINUX
48			FILE *f;
49			char *line;
50			long swapin[2], swapout[2];
51			#endif
52			#ifdef FREEBSD
53			size_t size;
54			long swapin[2], swapout[2];
55			#endif
56
57
58			#ifdef SOLARIS
59			if ((kc = kstat_open()) == NULL) {
60			errf("kstat_open failure (%m)");
61			return NULL;
62			}
63			for (ksp = kc->kc_chain; ksp!=NULL; ksp = ksp->ks_next) {
64			if ((strcmp(ksp->ks_module, "cpu_stat")) != 0) continue;
65			if (kstat_read(kc, ksp, &cs) == -1) {
66			errf("kstat read failure");
67			continue;
68			}
69			}
70
71			swapin=cs.cpu_vminfo.pgswapin;
72			swapout=cs.cpu_vminfo.pgswapout;
73
74			sleep(WAIT_TIME_IN_SECS);
75
76			if (kstat_chain_update(kc) == -1) {
77			errf("Kstat update failure (%m)");
78			return NULL;
79			}
80			for (ksp = kc->kc_chain; ksp!=NULL; ksp = ksp->ks_next) {
81			if ((strcmp(ksp->ks_module, "cpu_stat")) != 0) continue;
82			if (kstat_read(kc, ksp, &cs) == -1) {
83			errf("kstat read failure");
84			continue;
85			}
86			}
87	pajs	1.3	if((kstat_close(kc)) != 0){
88			errf("Failed to close kstat control structure (%m)");
89			return NULL;
90			}
91	pajs	1.1	swap_pageins=(cs.cpu_vminfo.pgswapin-swapin)/WAIT_TIME_IN_SECS;
92			swap_pageouts=(cs.cpu_vminfo.pgswapout-swapout)/WAIT_TIME_IN_SECS;
93			#endif
94			#ifdef LINUX
95			if ((f=fopen("/proc/stat", "r" ))==NULL) {
96			errf("Failed to open /proc/stat (%m)");
97			return NULL;
98			}
99			while((line=fpgetline(f)) != NULL){
100			if (((strncmp(line,"swap",4)) == 0)) {
101			if((sscanf(line, "%*s %ld %ld", &swapin[0], &swapout[0])) != 2){
102			errf("Failed to read swap paging details (%m)");
103			return NULL;
104			}
105			break;
106			}
107			}
108			if ((fclose(f)) != 0) {
109			errf("Failed to close file (%m)");
110			return NULL;
111			}
112			sleep(WAIT_TIME_IN_SECS);
113
114			if ((f=fopen("/proc/stat", "r" ))==NULL) {
115			errf("Failed to open /proc/stat (%m)");
116			return NULL;
117			}
118			while((line=fpgetline(f)) != NULL){
119			if (((strncmp(line,"swap",4)) == 0)) {
120			if((sscanf(line, "%*s %ld %ld", &swapin[1], &swapout[1])) != 2){
121			errf("Failed to read swap paging details (%m)");
122			return NULL;
123			}
124			break;
125			}
126			}
127			if ((fclose(f)) != 0) {
128			errf("Failed to close file (%m)");
129			return NULL;
130			}
131
132			swap_pageins=(swapin[1]-swapin[0])/WAIT_TIME_IN_SECS;
133			swap_pageouts=(swapout[1]-swapout[0])/WAIT_TIME_IN_SECS;
134			#endif
135			#ifdef FREEBSD
136			#define SWAP_IN_NAME "vm.stats.vm.v_swappgsin"
137			#define SWAP_OUT_NAME "vm.stats.vm.v_swappgsout"
138			if (sysctlbyname(SWAP_IN_NAME, NULL, &size, NULL, NULL) < 0){
139			errf("sysctlbyname failed to get total memory (%m)");
140			return NULL;
141			}
142			if (sysctlbyname(SWAP_IN_NAME, &swapin[0], &size, NULL, NULL) < 0){
143			errf("Failed to get total memory stats (%m)");
144			return NULL;
145			}
146			if (sysctlbyname(SWAP_OUT_NAME, NULL, &size, NULL, NULL) < 0){
147			errf("sysctlbyname failed to get total memory (%m)");
148			return NULL;
149			}
150			if (sysctlbyname(SWAP_OUT_NAME, &swapout[0], &size, NULL, NULL) < 0){
151			errf("Failed to get total memory stats (%m)");
152			return NULL;
153			}
154
155			sleep(WAIT_TIME_IN_SECS);
156
157			if (sysctlbyname(SWAP_IN_NAME, NULL, &size, NULL, NULL) < 0){
158			errf("sysctlbyname failed to get total memory (%m)");
159			return NULL;
160			}
161			if (sysctlbyname(SWAP_IN_NAME, &swapin[1], &size, NULL, NULL) < 0){
162			errf("Failed to get total memory stats (%m)");
163			return NULL;
164			}
165			if (sysctlbyname(SWAP_OUT_NAME, NULL, &size, NULL, NULL) < 0){
166			errf("sysctlbyname failed to get total memory (%m)");
167			return NULL;
168			}
169			if (sysctlbyname(SWAP_OUT_NAME, &swapout[1], &size, NULL, NULL) < 0){
170			errf("Failed to get total memory stats (%m)");
171			return NULL;
172			}
173
174			swap_pageins=(swapin[1]-swapin[0])/WAIT_TIME_IN_SECS;
175			swap_pageouts=(swapout[1]-swapout[0])/WAIT_TIME_IN_SECS;
176
177			#endif
178
179
180			if((xml_page_stats=strf("<pages><swapins>%d</swapins><swapouts>%d</swapouts></pages>", swap_pageins, swap_pageouts)) == NULL){
181			errf("strf failed (%m)");
182			return NULL;
183			}
184			return xml_page_stats;
185			}