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root/i-scream/projects/cms/source/ihost/libstatgrab/memory_stats.c

Comparing projects/cms/source/ihost/libstatgrab/memory_stats.c (file contents):
Revision 1.1 by pajs, Wed May 15 17:09:05 2002 UTC vs.
Revision 1.7 by pajs, Tue May 21 16:21:38 2002 UTC

#	Line 1 | Line 1
1	+	/*
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		#include <stdio.h>
21	+	#ifdef LINUX
22		#include <string.h>
23	<	#include <local/ukcprog.h>
23	>	#endif
24	>	#ifdef SOLARIS
25	>	#include <unistd.h>
26	>	#include <kstat.h>
27	>	#endif
28	>	#ifdef FREEBSD
29	>	#include <sys/types.h>
30	>	#include <sys/sysctl.h>
31	>	#include <unistd.h>
32	>	#endif
33	>	#include "ukcprog.h"
34
5	–
35		char *get_memory_stats(){
36	<	long total=0;
37	<	long free=0;
38	<	long used=0;
39	<	long cache=0;
36	>	long long total=0;
37	>	long long free=0;
38	>	long long used=0;
39	>	long long cache=0;
40		char *xml_memory_stats;
41		#ifdef LINUX
42		FILE *f;
43		char *line;
44	<	long buffers;
44	>	long long buffers;
45		#endif
46	+	#ifdef SOLARIS
47	+	kstat_ctl_t *kc;
48	+	kstat_t *ksp;
49	+	kstat_named_t *kn;
50	+	u_long totalmem;
51	+	int pagesize;
52	+	#endif
53	+	#ifdef FREEBSD
54	+	#define TOTAL_MEM_NAME "hw.physmem"
55	+	#define FREE_MEM_NAME "vm.stats.vm.v_free_count"
56	+	#define INACTIVE_MEM_NAME "vm.stats.vm.v_inactive_count"
57	+	#define CACHE_MEM_NAME "vm.stats.vm.v_cache_count"
58	+	int pagesize;
59	+	long inactive;
60	+	size_t size;
61	+	#endif
62
63		#ifdef LINUX
64		if ((f=fopen("/proc/meminfo", "r" ))==NULL) {
#	Line 22 | Line 67 | char *get_memory_stats(){
67		}
68		while((line=fpgetline(f)) != NULL){
69		if (((strncmp(line,"Mem:",4)) == 0)) {
70	<	if((sscanf(line, "%*s %ld %ld %ld %*s %ld %ld", &total, &used, &free, &buffers, &cache)) != 5){
70	>	if((sscanf(line, "%*s %lld %lld %lld %*s %lld %lld", &total, &used, &free, &buffers, &cache)) != 5){
71		errf("Failed to read memory details (%m)");
72		return NULL;
73		}
#	Line 42 | Line 87 | char *get_memory_stats(){
87		free=(free/1024)/1024;
88		cache=(free/1024)/1024;
89		#endif
90	+	#ifdef SOLARIS
91	+	if((pagesize=sysconf(_SC_PAGESIZE)) == -1){
92	+	errf("Failed to get pagesize (%m)");
93	+	return NULL;
94	+	}
95	+
96	+	if((totalmem=sysconf(_SC_PHYS_PAGES)) == -1){
97	+	errf("Failed to get total memory");
98	+	return NULL;
99	+	}
100	+
101	+	if ((kc = kstat_open()) == NULL) {
102	+	errf("kstat_open failure (%m)");
103	+	return NULL;
104	+	}
105	+	if((ksp=kstat_lookup(kc, "unix", 0, "system_pages")) == NULL){
106	+	errf("kstat lookup for \"system_pages\" (%m)");
107	+	return NULL;
108	+	}
109	+	if (kstat_read(kc, ksp, 0) == -1) {
110	+	errf("Failed to read kstat details (%m)");
111	+	return NULL;
112	+	}
113	+	if((kn=kstat_data_lookup(ksp, "freemem")) == NULL){
114	+	errf("Failed to get free memory (%m)");
115	+	return NULL;
116	+	}
117	+	if((kstat_close(kc)) != 0){
118	+	errf("Failed to close kstat control structure (%m)");
119	+	return NULL;
120	+	}
121	+	total=((totalmem*pagesize)/1024)/1024;
122	+	free=(((kn->value.ul)*pagesize)/1024)/1024;
123	+	used=total-free;
124	+	#endif
125	+	#ifdef FREEBSD
126	+	if ((pagesize=getpagesize()) == -1){
127	+	errf("Failed to get page size (%m)");
128	+	return NULL;
129	+	}
130	+
131	+	if (sysctlbyname(TOTAL_MEM_NAME, NULL, &size, NULL, NULL) < 0){
132	+	errf("sysctlbyname failed to get total memory (%m)");
133	+	return NULL;
134	+	}
135	+	if (sysctlbyname(TOTAL_MEM_NAME, &total, &size, NULL, NULL) < 0){
136	+	errf("Failed to get total memory stats (%m)");
137	+	return NULL;
138	+	}
139	+
140	+	if (sysctlbyname(FREE_MEM_NAME, NULL, &size, NULL, NULL) < 0){
141	+	errf("sysctlbyname failed to get free memory (%m)");
142	+	return NULL;
143	+	}
144	+	if (sysctlbyname(FREE_MEM_NAME, &free, &size, NULL, NULL) < 0){
145	+	errf("Failed to get free memory stats (%m)");
146	+	return NULL;
147	+	}
148	+
149	+	if (sysctlbyname(INACTIVE_MEM_NAME, NULL, &size, NULL, NULL) < 0){
150	+	errf("sysctlbyname failed to get inactive memory (%m)");
151	+	return NULL;
152	+	}
153	+	if (sysctlbyname(INACTIVE_MEM_NAME, &inactive, &size, NULL, NULL) < 0){
154	+	errf("Failed to get inactive memory stats (%m)");
155	+	return NULL;
156	+	}
157	+
158	+	if (sysctlbyname(CACHE_MEM_NAME, NULL, &size, NULL, NULL) < 0){
159	+	errf("sysctlbyname failed to get cache memory (%m)");
160	+	return NULL;
161	+	}
162	+	if (sysctlbyname(CACHE_MEM_NAME, &cache, &size, NULL, NULL) < 0){
163	+	errf("Failed to get cache memory stats (%m)");
164	+	return NULL;
165	+	}
166	+
167	+	total/=(1024*1024);
168	+	free=((free*pagesize)/(1024*1024))+((inactive*pagesize)/(1024*1024));
169	+	cache=((cache*pagesize)/(1024*1024));
170
171	+	/* used should also be cache+active+wired but its less effort this way :) */
172	+	used=total-free;
173	+
174	+	#endif
175	+
176	+
177		if((xml_memory_stats=strf("<memory><total>%ld</total><free>%ld</free><used>%ld</used><cache>%ld</cache></memory>", total, free, used, cache)) == NULL){
178		errf("strf failed (%m)");
179		return NULL;
180		}
181	<	}
51	<
52	<	int main(){
53	<	printf("%s\n", get_memory_stats());
54	<	exit(0);
181	>	return xml_memory_stats;
182		}

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