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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 1.2 by pajs, Thu May 16 10:34:23 2002 UTC

#	Line 1 | Line 1
1		#include <stdio.h>
2	+	#ifdef LINUX
3		#include <string.h>
4	<	#include <local/ukcprog.h>
4	>	#endif
5	>	#ifdef SOLARIS
6	>	#include <unistd.h>
7	>	#include <kstat.h>
8	>	#endif
9	>	#ifdef FREEBSD
10	>	#include <sys/types.h>
11	>	#include <sys/sysctl.h>
12	>	#include <unistd.h>
13	>	#endif
14	>	#include <ukcprog.h>
15
5	–
16		char *get_memory_stats(){
17		long total=0;
18		long free=0;
#	Line 14 | Line 24 | char *get_memory_stats(){
24		char *line;
25		long buffers;
26		#endif
27	+	#ifdef SOLARIS
28	+	kstat_ctl_t *kc;
29	+	kstat_t *ksp;
30	+	kstat_named_t *kn;
31	+	u_long totalmem;
32	+	int pagesize;
33	+	#endif
34	+	#ifdef FREEBSD
35	+	#define TOTAL_MEM_NAME "hw.physmem"
36	+	#define FREE_MEM_NAME "vm.stats.vm.v_free_count"
37	+	#define INACTIVE_MEM_NAME "vm.stats.vm.v_inactive_count"
38	+	#define CACHE_MEM_NAME "vm.stats.vm.v_cache_count"
39	+	int pagesize;
40	+	long inactive;
41	+	size_t size;
42	+	#endif
43
44		#ifdef LINUX
45		if ((f=fopen("/proc/meminfo", "r" ))==NULL) {
#	Line 42 | Line 68 | char *get_memory_stats(){
68		free=(free/1024)/1024;
69		cache=(free/1024)/1024;
70		#endif
71	+	#ifdef SOLARIS
72	+	if((pagesize=sysconf(_SC_PAGESIZE)) == -1){
73	+	errf("Failed to get pagesize (%m)");
74	+	return NULL;
75	+	}
76	+
77	+	if((totalmem=sysconf(_SC_PHYS_PAGES)) == -1){
78	+	errf("Failed to get total memory");
79	+	return NULL;
80	+	}
81	+
82	+	if ((kc = kstat_open()) == NULL) {
83	+	errf("kstat_open failure (%m)");
84	+	return NULL;
85	+	}
86	+	if((ksp=kstat_lookup(kc, "unix", 0, "system_pages")) == NULL){
87	+	errf("kstat lookup for \"system_pages\" (%m)");
88	+	return NULL;
89	+	}
90	+	if (kstat_read(kc, ksp, 0) == -1) {
91	+	errf("Failed to read kstat details (%m)");
92	+	return NULL;
93	+	}
94	+	if((kn=kstat_data_lookup(ksp, "freemem")) == NULL){
95	+	errf("Failed to get free memory (%m)");
96	+	return NULL;
97	+	}
98	+	total=((totalmem*pagesize)/1024)/1024;
99	+	free=(((kn->value.ul)*pagesize)/1024)/1024;
100	+	used=total-free;
101	+	#endif
102	+	#ifdef FREEBSD
103	+	if ((pagesize=getpagesize()) == -1){
104	+	errf("Failed to get page size (%m)");
105	+	return NULL;
106	+	}
107	+
108	+	if (sysctlbyname(TOTAL_MEM_NAME, NULL, &size, NULL, NULL) < 0){
109	+	errf("sysctlbyname failed to get total memory (%m)");
110	+	return NULL;
111	+	}
112	+	if (sysctlbyname(TOTAL_MEM_NAME, &total, &size, NULL, NULL) < 0){
113	+	errf("Failed to get total memory stats (%m)");
114	+	return NULL;
115	+	}
116	+
117	+	if (sysctlbyname(FREE_MEM_NAME, NULL, &size, NULL, NULL) < 0){
118	+	errf("sysctlbyname failed to get free memory (%m)");
119	+	return NULL;
120	+	}
121	+	if (sysctlbyname(FREE_MEM_NAME, &free, &size, NULL, NULL) < 0){
122	+	errf("Failed to get free memory stats (%m)");
123	+	return NULL;
124	+	}
125	+
126	+	if (sysctlbyname(INACTIVE_MEM_NAME, NULL, &size, NULL, NULL) < 0){
127	+	errf("sysctlbyname failed to get inactive memory (%m)");
128	+	return NULL;
129	+	}
130	+	if (sysctlbyname(INACTIVE_MEM_NAME, &inactive, &size, NULL, NULL) < 0){
131	+	errf("Failed to get inactive memory stats (%m)");
132	+	return NULL;
133	+	}
134	+
135	+	if (sysctlbyname(CACHE_MEM_NAME, NULL, &size, NULL, NULL) < 0){
136	+	errf("sysctlbyname failed to get cache memory (%m)");
137	+	return NULL;
138	+	}
139	+	if (sysctlbyname(CACHE_MEM_NAME, &cache, &size, NULL, NULL) < 0){
140	+	errf("Failed to get cache memory stats (%m)");
141	+	return NULL;
142	+	}
143	+
144	+	total/=(1024*1024);
145	+	free=((free*pagesize)/(1024*1024))+((inactive*pagesize)/(1024*1024));
146	+	cache=((cache*pagesize)/(1024*1024));
147
148	+	/* used should also be cache+active+wired but its less effort this way :) */
149	+	used=total-free;
150	+
151	+	#endif
152	+
153	+
154		if((xml_memory_stats=strf("<memory><total>%ld</total><free>%ld</free><used>%ld</used><cache>%ld</cache></memory>", total, free, used, cache)) == NULL){
155		errf("strf failed (%m)");
156		return NULL;
157		}
158	+	return xml_memory_stats;
159		}
160
161		int main(){

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