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

Comparing projects/libstatgrab/src/libstatgrab/swap_stats.c (file contents):
Revision 1.1 by pajs, Tue Feb 18 19:28:30 2003 UTC vs.
Revision 1.23 by ats, Sat Nov 6 15:41:30 2004 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
1	>	/*
2	>	* i-scream libstatgrab
3	>	* http://www.i-scream.org
4	>	* Copyright (C) 2000-2004 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.
6	>	* This library is free software; you can redistribute it and/or
7	>	* modify it under the terms of the GNU Lesser General Public
8	>	* License as published by the Free Software Foundation; either
9	>	* version 2.1 of the License, or (at your option) any later version.
10		*
11	<	* This program is distributed in the hope that it will be useful,
11	>	* This library 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.
13	>	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14	>	* Lesser 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.
16	>	* You should have received a copy of the GNU Lesser General Public
17	>	* License along with this library; if not, write to the Free Software
18	>	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19	>	* 02111-1307 USA
20	>	*
21	>	* $Id$
22		*/
23
24		#ifdef HAVE_CONFIG_H
25		#include "config.h"
26		#endif
27
25	–	#include <stdio.h>
26	–	#include "ukcprog.h"
28		#include "statgrab.h"
29	+	#include "tools.h"
30		#ifdef SOLARIS
31		#include <sys/stat.h>
32		#include <sys/swap.h>
33		#include <unistd.h>
34		#endif
35	+	#if defined(LINUX) || defined(CYGWIN)
36	+	#include <stdio.h>
37	+	#include <string.h>
38	+	#endif
39	+	#if defined(FREEBSD) || defined(DFBSD)
40	+	#ifdef FREEBSD5
41	+	#include <sys/param.h>
42	+	#include <sys/sysctl.h>
43	+	#include <sys/user.h>
44	+	#else
45	+	#include <sys/types.h>
46	+	#include <kvm.h>
47	+	#endif
48	+	#include <unistd.h>
49	+	#endif
50	+	#if defined(NETBSD) || defined(OPENBSD)
51	+	#include <sys/param.h>
52	+	#include <sys/time.h>
53	+	#include <uvm/uvm.h>
54	+	#include <unistd.h>
55	+	#endif
56	+	#ifdef HPUX
57	+	#include <sys/param.h>
58	+	#include <sys/pstat.h>
59	+	#include <unistd.h>
60	+	#define SWAP_BATCH 5
61	+	#endif
62
63	<	swap_stat_t *get_swap_stats(){
63	>	sg_swap_stats *sg_get_swap_stats(){
64
65	<	static swap_stat_t swap_stat;
65	>	static sg_swap_stats swap_stat;
66
67	+	#ifdef HPUX
68	+	struct pst_swapinfo pstat_swapinfo[SWAP_BATCH];
69	+	int swapidx = 0;
70	+	int num, i;
71	+	#endif
72	+	#ifdef SOLARIS
73		struct anoninfo ai;
74		int pagesize;
75	+	#endif
76	+	#if defined(LINUX) || defined(CYGWIN)
77	+	FILE *f;
78	+	char *line_ptr;
79	+	unsigned long long value;
80	+	#endif
81	+	#if defined(FREEBSD) || defined(DFBSD)
82	+	int pagesize;
83	+	#ifdef FREEBSD5
84	+	struct xswdev xsw;
85	+	int mib[16], n;
86	+	size_t mibsize, size;
87	+	#else
88	+	struct kvm_swap swapinfo;
89	+	kvm_t *kvmd;
90	+	#endif
91	+	#endif
92	+	#if defined(NETBSD) || defined(OPENBSD)
93	+	struct uvmexp *uvm;
94	+	#endif
95
96	+	#ifdef HPUX
97	+	swap_stat.total = 0;
98	+	swap_stat.used = 0;
99	+	swap_stat.free = 0;
100	+
101	+	while (1) {
102	+	num = pstat_getswap(pstat_swapinfo, sizeof pstat_swapinfo[0],
103	+	SWAP_BATCH, swapidx);
104	+	if (num == -1) {
105	+	sg_set_error_with_errno(SG_ERROR_PSTAT,
106	+	"pstat_getswap");
107	+	return NULL;
108	+	} else if (num == 0) {
109	+	break;
110	+	}
111	+
112	+	for (i = 0; i < num; i++) {
113	+	struct pst_swapinfo *si = &pstat_swapinfo[i];
114	+
115	+	if ((si->pss_flags & SW_ENABLED) != SW_ENABLED) {
116	+	continue;
117	+	}
118	+
119	+	if ((si->pss_flags & SW_BLOCK) == SW_BLOCK) {
120	+	swap_stat.total += ((long long) si->pss_nblksavail) * 1024LL;
121	+	swap_stat.used += ((long long) si->pss_nfpgs) * 1024LL;
122	+	swap_stat.free = swap_stat.total - swap_stat.used;
123	+	}
124	+	if ((si->pss_flags & SW_FS) == SW_FS) {
125	+	swap_stat.total += ((long long) si->pss_limit) * 1024LL;
126	+	swap_stat.used += ((long long) si->pss_allocated) * 1024LL;
127	+	swap_stat.free = swap_stat.total - swap_stat.used;
128	+	}
129	+	}
130	+	swapidx = pstat_swapinfo[num - 1].pss_idx + 1;
131	+	}
132	+	#endif
133	+	#ifdef SOLARIS
134		if((pagesize=sysconf(_SC_PAGESIZE)) == -1){
135	+	sg_set_error_with_errno(SG_ERROR_SYSCONF, "_SC_PAGESIZE");
136		return NULL;
137		}
138		if (swapctl(SC_AINFO, &ai) == -1) {
139	+	sg_set_error_with_errno(SG_ERROR_SWAPCTL, NULL);
140		return NULL;
141		}
142		swap_stat.total = (long long)ai.ani_max * (long long)pagesize;
143		swap_stat.used = (long long)ai.ani_resv * (long long)pagesize;
144		swap_stat.free = swap_stat.total - swap_stat.used;
145	+	#endif
146	+	#if defined(LINUX) || defined(CYGWIN)
147	+	if ((f = fopen("/proc/meminfo", "r")) == NULL) {
148	+	sg_set_error_with_errno(SG_ERROR_OPEN, "/proc/meminfo");
149	+	return NULL;
150	+	}
151	+
152	+	while ((line_ptr = sg_f_read_line(f, "")) != NULL) {
153	+	if (sscanf(line_ptr, "%*s %llu kB", &value) != 1) {
154	+	continue;
155	+	}
156	+	value *= 1024;
157	+
158	+	if (strncmp(line_ptr, "SwapTotal:", 10) == 0) {
159	+	swap_stat.total = value;
160	+	} else if (strncmp(line_ptr, "SwapFree:", 9) == 0) {
161	+	swap_stat.free = value;
162	+	}
163	+	}
164	+
165	+	fclose(f);
166	+	swap_stat.used = swap_stat.total - swap_stat.free;
167	+	#endif
168	+	#if defined(FREEBSD) || defined(DFBSD)
169	+	pagesize=getpagesize();
170	+
171	+	#ifdef FREEBSD5
172	+	swap_stat.total = 0;
173	+	swap_stat.used = 0;
174	+
175	+	mibsize = sizeof mib / sizeof mib[0];
176	+	if (sysctlnametomib("vm.swap_info", mib, &mibsize) < 0) {
177	+	sg_set_error_with_errno(SG_ERROR_SYSCTLNAMETOMIB,
178	+	"vm.swap_info");
179	+	return NULL;
180	+	}
181	+	for (n = 0; ; ++n) {
182	+	mib[mibsize] = n;
183	+	size = sizeof xsw;
184	+	if (sysctl(mib, mibsize + 1, &xsw, &size, NULL, NULL) < 0) {
185	+	break;
186	+	}
187	+	if (xsw.xsw_version != XSWDEV_VERSION) {
188	+	sg_set_error(SG_ERROR_XSW_VER_MISMATCH, NULL);
189	+	return NULL;
190	+	}
191	+	swap_stat.total += (long long) xsw.xsw_nblks;
192	+	swap_stat.used += (long long) xsw.xsw_used;
193	+	}
194	+	if (errno != ENOENT) {
195	+	sg_set_error_with_errno(SG_ERROR_SYSCTL, "vm.swap_info");
196	+	return NULL;
197	+	}
198	+	#else
199	+	if((kvmd = sg_get_kvm()) == NULL){
200	+	return NULL;
201	+	}
202	+	if ((kvm_getswapinfo(kvmd, &swapinfo, 1,0)) == -1){
203	+	sg_set_error(SG_ERROR_KVM_GETSWAPINFO, NULL);
204	+	return NULL;
205	+	}
206	+
207	+	swap_stat.total = (long long)swapinfo.ksw_total;
208	+	swap_stat.used = (long long)swapinfo.ksw_used;
209	+	#endif
210	+	swap_stat.total *= pagesize;
211	+	swap_stat.used *= pagesize;
212	+	swap_stat.free = swap_stat.total - swap_stat.used;
213	+	#endif
214	+	#if defined(NETBSD) || defined(OPENBSD)
215	+	if ((uvm = sg_get_uvmexp()) == NULL) {
216	+	return NULL;
217	+	}
218	+
219	+	swap_stat.total = (long long)uvm->pagesize * (long long)uvm->swpages;
220	+	swap_stat.used = (long long)uvm->pagesize * (long long)uvm->swpginuse;
221	+	swap_stat.free = swap_stat.total - swap_stat.used;
222	+	#endif
223
224		return &swap_stat;
225

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