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root/i-scream/projects/libstatgrab/src/libstatgrab/memory_stats.c

Comparing projects/libstatgrab/src/libstatgrab/memory_stats.c (file contents):
Revision 1.6 by pajs, Thu Apr 3 20:05:10 2003 UTC vs.
Revision 1.13 by ats, Sun Oct 19 02:11:50 2003 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
3	>	* http://www.i-scream.org
4	>	* Copyright (C) 2000-2003 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
#	Line 23 | Line 23
23		#endif
24
25		#include "statgrab.h"
26	+	#include "tools.h"
27		#ifdef SOLARIS
28		#include <unistd.h>
29		#include <kstat.h>
#	Line 30 | Line 31
31		#ifdef LINUX
32		#include <stdio.h>
33		#include <string.h>
33	–	#include "tools.h"
34		#endif
35	+	#ifdef ALLBSD
36		#ifdef FREEBSD
37		#include <sys/types.h>
38		#include <sys/sysctl.h>
39	+	#else
40	+	#include <sys/param.h>
41	+	#include <sys/sysctl.h>
42	+	#endif
43		#include <unistd.h>
44		#endif
45
#	Line 53 | Line 58 | mem_stat_t *get_memory_stats(){
58		char *line_ptr;
59		FILE *f;
60		#endif
61	+	#ifdef ALLBSD
62	+	int mib[2];
63		#ifdef FREEBSD
64	<	long inactive;
65	<	size_t size;
64	>	u_int free_count;
65	>	u_int cache_count;
66	>	u_int inactive_count;
67		int pagesize;
68		#endif
69	+	#ifdef NETBSD
70	+	struct uvmexp *uvm;
71	+	#endif
72	+	u_long physmem;
73	+	size_t size;
74	+	#endif
75
76		#ifdef SOLARIS
77		if((pagesize=sysconf(_SC_PAGESIZE)) == -1){
#	Line 114 | Line 128 | mem_stat_t *get_memory_stats(){
128
129		#endif
130
131	<	#ifdef FREEBSD
132	<	/* Returns byes */
133	<	if (sysctlbyname("hw.physmem", NULL, &size, NULL, NULL) < 0){
131	>	#ifdef ALLBSD
132	>	/* Returns bytes */
133	>	mib[0] = CTL_HW;
134	>	mib[1] = HW_PHYSMEM;
135	>	size = sizeof physmem;
136	>	if (sysctl(mib, 2, &physmem, &size, NULL, 0) < 0) {
137		return NULL;
138	<	}
139	<	if (sysctlbyname("hw.physmem", &mem_stat.total, &size, NULL, NULL) < 0){
123	<	return NULL;
124	<	}
138	>	}
139	>	mem_stat.total = physmem;
140
141		/*returns pages*/
142	<	if (sysctlbyname("vm.stats.vm.v_free_count", NULL, &size, NULL, NULL) < 0){
142	>	#ifdef FREEBSD
143	>	size = sizeof free_count;
144	>	if (sysctlbyname("vm.stats.vm.v_free_count", &free_count, &size, NULL, 0) < 0){
145		return NULL;
129	–	}
130	–	if (sysctlbyname("vm.stats.vm.v_free_count", &mem_stat.free, &size, NULL, NULL) < 0){
131	–	return NULL;
146		}
147
148	<	if (sysctlbyname("vm.stats.vm.v_inactive_count", NULL, &size, NULL, NULL) < 0){
148	>	size = sizeof inactive_count;
149	>	if (sysctlbyname("vm.stats.vm.v_inactive_count", &inactive_count , &size, NULL, 0) < 0){
150		return NULL;
136	–	}
137	–	if (sysctlbyname("vm.stats.vm.v_inactive_count", &inactive , &size, NULL, NULL) < 0){
138	–	return NULL;
151		}
152
153	<	if (sysctlbyname("vm.stats.vm.v_cache_count", NULL, &size, NULL, NULL) < 0){
153	>	size = sizeof cache_count;
154	>	if (sysctlbyname("vm.stats.vm.v_cache_count", &cache_count, &size, NULL, 0) < 0){
155		return NULL;
143	–	}
144	–	if (sysctlbyname("vm.stats.vm.v_cache_count", &mem_stat.cache, &size, NULL, NULL) < 0){
145	–	return NULL;
156		}
157
158	<	/* Because all the vm.stats returns pages, i need to get the page size.
159	<	* After that i then need to multiple the anything that used vm.stats to get
160	<	* the system statistics by pagesize
158	>	/* Because all the vm.stats returns pages, I need to get the page size.
159	>	* After that I then need to multiple the anything that used vm.stats to
160	>	* get the system statistics by pagesize
161		*/
162		if ((pagesize=getpagesize()) == -1){
163		return NULL;
164		}
165
166	<	mem_stat.cache=mem_stat.cache*pagesize;
157	<	/* Of couse nothing is ever that simple :) And i have inactive pages to deal
158	<	* with too. So im goingto add them to free memory :)
159	<	*/
160	<	mem_stat.free=(mem_stat.free*pagesize)+(inactive*pagesize);
161	<
162	<	mem_stat.used=mem_stat.total-mem_stat.free;
166	>	mem_stat.cache=cache_count*pagesize;
167
168	+	/* Of couse nothing is ever that simple :) And I have inactive pages to
169	+	* deal with too. So I'm going to add them to free memory :)
170	+	*/
171	+	mem_stat.free=(free_count*pagesize)+(inactive_count*pagesize);
172	+	mem_stat.used=physmem-mem_stat.free;
173	+	#endif
174	+	#ifdef NETBSD
175	+	/* FIXME This is not consistent with the FreeBSD logic above. */
176	+	if ((uvm = get_uvmexp()) == NULL) {
177	+	return NULL;
178	+	}
179	+	mem_stat.cache = uvm->pagesize * (uvm->filepages + uvm->execpages);
180	+	mem_stat.free = uvm->pagesize * uvm->free;
181	+	mem_stat.used = uvm->pagesize * (uvm->npages - uvm->free);
182	+	#endif
183		#endif
184
185		return &mem_stat;

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