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Comparing projects/libstatgrab/src/libstatgrab/swap_stats.c (file contents):
Revision 1.6 by ats, Sun Oct 19 00:25:30 2003 UTC vs.
Revision 1.26 by tdb, Sun Oct 3 18:35:58 2010 UTC

#	Line 1 | Line 1
1	<	/*
2	<	* i-scream central monitoring system
1	>	/*
2	>	* i-scream libstatgrab
3		* http://www.i-scream.org
4	<	* Copyright (C) 2000-2003 i-scream
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
#	Line 29 | Line 32
32		#include <sys/swap.h>
33		#include <unistd.h>
34		#endif
35	<	#ifdef LINUX
35	>	#if defined(LINUX) || defined(CYGWIN)
36		#include <stdio.h>
37	+	#include <string.h>
38		#endif
39	<	#ifdef FREEBSD
40	<	#include <unistd.h>
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	+	#ifdef AIX
63	+	#include <unistd.h>
64	+	#include <libperfstat.h>
65	+	#endif
66	+	#ifdef WIN32
67	+	#include <windows.h>
68	+	#endif
69
70	<	swap_stat_t *get_swap_stats(){
70	>	sg_swap_stats *sg_get_swap_stats(){
71
72	<	static swap_stat_t swap_stat;
72	>	static sg_swap_stats swap_stat;
73
74	+	#ifdef HPUX
75	+	struct pst_swapinfo pstat_swapinfo[SWAP_BATCH];
76	+	int swapidx = 0;
77	+	int num, i;
78	+	#endif
79		#ifdef SOLARIS
80		struct anoninfo ai;
81		int pagesize;
82		#endif
83	<	#ifdef LINUX
83	>	#if defined(LINUX) || defined(CYGWIN)
84		FILE *f;
85		char *line_ptr;
86	+	unsigned long long value;
87		#endif
88	<	#ifdef FREEBSD
54	<	struct kvm_swap swapinfo;
88	>	#if defined(FREEBSD) || defined(DFBSD)
89		int pagesize;
90	+	#ifdef FREEBSD5
91	+	struct xswdev xsw;
92	+	int mib[16], n;
93	+	size_t mibsize, size;
94	+	#else
95	+	struct kvm_swap swapinfo;
96		kvm_t *kvmd;
97		#endif
98	+	#endif
99	+	#if defined(NETBSD) || defined(OPENBSD)
100	+	struct uvmexp *uvm;
101	+	#endif
102	+	#ifdef AIX
103	+	perfstat_memory_total_t mem;
104	+	long long pagesize;
105	+	#endif
106	+	#ifdef WIN32
107	+	MEMORYSTATUSEX memstats;
108	+	#endif
109
110	+	#ifdef HPUX
111	+	swap_stat.total = 0;
112	+	swap_stat.used = 0;
113	+	swap_stat.free = 0;
114	+
115	+	while (1) {
116	+	num = pstat_getswap(pstat_swapinfo, sizeof pstat_swapinfo[0],
117	+	SWAP_BATCH, swapidx);
118	+	if (num == -1) {
119	+	sg_set_error_with_errno(SG_ERROR_PSTAT,
120	+	"pstat_getswap");
121	+	return NULL;
122	+	} else if (num == 0) {
123	+	break;
124	+	}
125	+
126	+	for (i = 0; i < num; i++) {
127	+	struct pst_swapinfo *si = &pstat_swapinfo[i];
128	+
129	+	if ((si->pss_flags & SW_ENABLED) != SW_ENABLED) {
130	+	continue;
131	+	}
132	+
133	+	if ((si->pss_flags & SW_BLOCK) == SW_BLOCK) {
134	+	swap_stat.total += ((long long) si->pss_nblksavail) * 1024LL;
135	+	swap_stat.used += ((long long) si->pss_nfpgs) * 1024LL;
136	+	swap_stat.free = swap_stat.total - swap_stat.used;
137	+	}
138	+	if ((si->pss_flags & SW_FS) == SW_FS) {
139	+	swap_stat.total += ((long long) si->pss_limit) * 1024LL;
140	+	swap_stat.used += ((long long) si->pss_allocated) * 1024LL;
141	+	swap_stat.free = swap_stat.total - swap_stat.used;
142	+	}
143	+	}
144	+	swapidx = pstat_swapinfo[num - 1].pss_idx + 1;
145	+	}
146	+	#endif
147	+	#ifdef AIX
148	+	if ((pagesize = sysconf(_SC_PAGESIZE)) == -1) {
149	+	sg_set_error_with_errno(SG_ERROR_SYSCONF, "_SC_PAGESIZE");
150	+	return NULL;
151	+	}
152	+
153	+	/* return code is number of structures returned */
154	+	if(perfstat_memory_total(NULL, &mem, sizeof(perfstat_memory_total_t), 1) != 1) {
155	+	sg_set_error_with_errno(SG_ERROR_SYSCTLBYNAME, "perfstat_memory_total");
156	+	return NULL;
157	+	}
158	+
159	+	swap_stat.total = ((long long)mem.pgsp_total) * pagesize;
160	+	swap_stat.free  = ((long long)mem.pgsp_free)  * pagesize;
161	+	swap_stat.used  = swap_stat.total - swap_stat.free;
162	+	#endif
163		#ifdef SOLARIS
164		if((pagesize=sysconf(_SC_PAGESIZE)) == -1){
165	+	sg_set_error_with_errno(SG_ERROR_SYSCONF, "_SC_PAGESIZE");
166		return NULL;
167		}
168		if (swapctl(SC_AINFO, &ai) == -1) {
169	+	sg_set_error_with_errno(SG_ERROR_SWAPCTL, NULL);
170		return NULL;
171		}
172		swap_stat.total = (long long)ai.ani_max * (long long)pagesize;
173		swap_stat.used = (long long)ai.ani_resv * (long long)pagesize;
174		swap_stat.free = swap_stat.total - swap_stat.used;
175		#endif
176	<	#ifdef LINUX
177	<	if ((f=fopen("/proc/meminfo", "r" ))==NULL) {
176	>	#if defined(LINUX) || defined(CYGWIN)
177	>	if ((f = fopen("/proc/meminfo", "r")) == NULL) {
178	>	sg_set_error_with_errno(SG_ERROR_OPEN, "/proc/meminfo");
179		return NULL;
180		}
181	<	if((line_ptr=f_read_line(f, "Swap:"))==NULL){
182	<	fclose(f);
181	>
182	>	while ((line_ptr = sg_f_read_line(f, "")) != NULL) {
183	>	if (sscanf(line_ptr, "%*s %llu kB", &value) != 1) {
184	>	continue;
185	>	}
186	>	value *= 1024;
187	>
188	>	if (strncmp(line_ptr, "SwapTotal:", 10) == 0) {
189	>	swap_stat.total = value;
190	>	} else if (strncmp(line_ptr, "SwapFree:", 9) == 0) {
191	>	swap_stat.free = value;
192	>	}
193	>	}
194	>
195	>	fclose(f);
196	>	swap_stat.used = swap_stat.total - swap_stat.free;
197	>	#endif
198	>	#if defined(FREEBSD) || defined(DFBSD)
199	>	pagesize=getpagesize();
200	>
201	>	#ifdef FREEBSD5
202	>	swap_stat.total = 0;
203	>	swap_stat.used = 0;
204	>
205	>	mibsize = sizeof mib / sizeof mib[0];
206	>	if (sysctlnametomib("vm.swap_info", mib, &mibsize) < 0) {
207	>	sg_set_error_with_errno(SG_ERROR_SYSCTLNAMETOMIB,
208	>	"vm.swap_info");
209		return NULL;
210		}
211	<	if((sscanf(line_ptr, "Swap: %lld %lld %lld", &swap_stat.total, &swap_stat.used, &swap_stat.free))!=3){
212	<	fclose(f);
211	>	for (n = 0; ; ++n) {
212	>	mib[mibsize] = n;
213	>	size = sizeof xsw;
214	>	if (sysctl(mib, mibsize + 1, &xsw, &size, NULL, 0) < 0) {
215	>	break;
216	>	}
217	>	if (xsw.xsw_version != XSWDEV_VERSION) {
218	>	sg_set_error(SG_ERROR_XSW_VER_MISMATCH, NULL);
219	>	return NULL;
220	>	}
221	>	swap_stat.total += (long long) xsw.xsw_nblks;
222	>	swap_stat.used += (long long) xsw.xsw_used;
223	>	}
224	>	if (errno != ENOENT) {
225	>	sg_set_error_with_errno(SG_ERROR_SYSCTL, "vm.swap_info");
226		return NULL;
227		}
228	<	fclose(f);
229	<	#endif
84	<	#ifdef FREEBSD
85	<	if((kvmd = get_kvm()) == NULL){
228	>	#else
229	>	if((kvmd = sg_get_kvm()) == NULL){
230		return NULL;
231		}
232		if ((kvm_getswapinfo(kvmd, &swapinfo, 1,0)) == -1){
233	+	sg_set_error(SG_ERROR_KVM_GETSWAPINFO, NULL);
234		return NULL;
235		}
91	–	pagesize=getpagesize();
236
237	<	swap_stat.total= (long long)swapinfo.ksw_total * (long long)pagesize;
238	<	swap_stat.used = (long long)swapinfo.ksw_used * (long long)pagesize;
95	<	swap_stat.free = swap_stat.total-swap_stat.used;
237	>	swap_stat.total = (long long)swapinfo.ksw_total;
238	>	swap_stat.used = (long long)swapinfo.ksw_used;
239		#endif
240	+	swap_stat.total *= pagesize;
241	+	swap_stat.used *= pagesize;
242	+	swap_stat.free = swap_stat.total - swap_stat.used;
243	+	#endif
244	+	#if defined(NETBSD) || defined(OPENBSD)
245	+	if ((uvm = sg_get_uvmexp()) == NULL) {
246	+	return NULL;
247	+	}
248	+
249	+	swap_stat.total = (long long)uvm->pagesize * (long long)uvm->swpages;
250	+	swap_stat.used = (long long)uvm->pagesize * (long long)uvm->swpginuse;
251	+	swap_stat.free = swap_stat.total - swap_stat.used;
252	+	#endif
253	+	#ifdef WIN32
254	+	memstats.dwLength = sizeof(memstats);
255	+	if (!GlobalMemoryStatusEx(&memstats)) {
256	+	sg_set_error_with_errno(SG_ERROR_MEMSTATUS,
257	+	"GloblaMemoryStatusEx");
258	+	return NULL;
259	+	}
260	+	/* the PageFile stats include Phys memory "minus an overhead".
261	+	* Due to this unknown "overhead" there's no way to extract just page
262	+	* file use from these numbers */
263	+	swap_stat.total = memstats.ullTotalPageFile;
264	+	swap_stat.free = memstats.ullAvailPageFile;
265	+	swap_stat.used = swap_stat.total - swap_stat.free;
266	+	#endif
267	+
268		return &swap_stat;
269
270		}

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