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

Comparing projects/libstatgrab/src/libstatgrab/disk_stats.c (file contents):
Revision 1.42 by ats, Wed Nov 12 01:36:19 2003 UTC vs.
Revision 1.80 by tdb, Thu Feb 24 12:34:45 2005 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 27 | Line 30
30		#include <string.h>
31		#include <time.h>
32		#include "statgrab.h"
33	+	#include "vector.h"
34	+	#include "tools.h"
35
36		#ifdef SOLARIS
37		#include <sys/mnttab.h>
38		#include <sys/statvfs.h>
39		#include <kstat.h>
40	<	#define VALID_FS_TYPES {"ufs", "tmpfs"}
40	>	#define VALID_FS_TYPES {"ufs", "tmpfs", "vxfs"}
41		#endif
42
43		#if defined(LINUX) || defined(CYGWIN)
44		#include <mntent.h>
45		#include <sys/vfs.h>
41	–	#include "tools.h"
46		#endif
47
48		#ifdef LINUX
49		#define VALID_FS_TYPES {"adfs", "affs", "befs", "bfs", "efs", "ext2", \
50	<	"ext3", "vxfs", "hfs", "hfsplus", "hpfs", "jffs", \
51	<	"jffs2", "minix", "msdos", "ntfs", "qnx4", "ramfs", \
52	<	"rootfs", "reiserfs", "sysv", "v7", "udf", "ufs", \
53	<	"umsdos", "vfat", "xfs", "jfs"}
50	>	"ext3", "vxfs", "hfs", "hfsplus", "hpfs", "jffs", \
51	>	"jffs2", "minix", "msdos", "ntfs", "qnx4", "ramfs", \
52	>	"rootfs", "reiserfs", "sysv", "v7", "udf", "ufs", \
53	>	"umsdos", "vfat", "xfs", "jfs", "nfs"}
54		#endif
55
56		#ifdef CYGWIN
#	Line 58 | Line 62
62		#include <sys/ucred.h>
63		#include <sys/mount.h>
64		#endif
65	<	#ifdef FREEBSD
65	>	#if defined(FREEBSD) || defined(DFBSD)
66		#include <sys/dkstat.h>
67		#include <devstat.h>
68		#define VALID_FS_TYPES {"hpfs", "msdosfs", "ntfs", "udf", "ext2fs", \
69	<	"ufs", "mfs"}
69	>	"ufs", "mfs", "nfs"}
70		#endif
71	<	#ifdef NETBSD
71	>	#if defined(NETBSD) || defined(OPENBSD)
72		#include <sys/param.h>
73		#include <sys/sysctl.h>
74		#include <sys/disk.h>
75		#define VALID_FS_TYPES {"ffs", "mfs", "msdos", "lfs", "adosfs", "ext2fs", \
76	<	"ntfs"}
76	>	"ntfs", "nfs"}
77		#endif
78
79	<	#define START_VAL 1
79	>	#ifdef HPUX
80	>	#include <sys/param.h>
81	>	#include <sys/pstat.h>
82	>	#include <sys/types.h>
83	>	#include <sys/stat.h>
84	>	#include <sys/vfs.h>
85	>	#include <mntent.h>
86	>	#include <dirent.h>
87	>	#include <stdio.h>
88	>	#include <time.h>
89	>	#define VALID_FS_TYPES {"vxfs", "hfs"}
90	>	#define DISK_BATCH 30
91	>	#endif
92
93	<	char *copy_string(char *orig_ptr, const char *newtext){
94	<
95	<	/* Maybe free if not NULL, and strdup rather than realloc and strcpy? */
96	<	orig_ptr=realloc(orig_ptr, (1+strlen(newtext)));
81	<	if(orig_ptr==NULL){
82	<	return NULL;
83	<	}
84	<	strcpy(orig_ptr, newtext);
85	<
86	<	return orig_ptr;
93	>	static void disk_stat_init(sg_fs_stats *d) {
94	>	d->device_name = NULL;
95	>	d->fs_type = NULL;
96	>	d->mnt_point = NULL;
97		}
98
99	<
100	<	void init_disk_stat(int start, int end, disk_stat_t *disk_stats){
101	<
102	<	for(disk_stats+=start; start<=end; start++){
93	<	disk_stats->device_name=NULL;
94	<	disk_stats->fs_type=NULL;
95	<	disk_stats->mnt_point=NULL;
96	<
97	<	disk_stats++;
98	<	}
99	>	static void disk_stat_destroy(sg_fs_stats *d) {
100	>	free(d->device_name);
101	>	free(d->fs_type);
102	>	free(d->mnt_point);
103		}
104
105	<	int is_valid_fs_type(const char *type) {
105	>	static int is_valid_fs_type(const char *type) {
106		const char *types[] = VALID_FS_TYPES;
107		int i;
108
109	<	for (i = 0; i < (sizeof types / sizeof *types); i++) {
109	>	for (i = 0; i < (int) (sizeof types / sizeof *types); i++) {
110		if (strcmp(types[i], type) == 0) {
111		return 1;
112		}
#	Line 110 | Line 114 | int is_valid_fs_type(const char *type) {
114		return 0;
115		}
116
117	<	disk_stat_t *get_disk_stats(int *entries){
117	>	sg_fs_stats *sg_get_fs_stats(int *entries){
118	>	VECTOR_DECLARE_STATIC(disk_stats, sg_fs_stats, 10,
119	>	disk_stat_init, disk_stat_destroy);
120
115	–	static disk_stat_t *disk_stats;
116	–	static int watermark=-1;
117	–
121		int valid_type;
122		int num_disks=0;
123	<	#if defined(LINUX) || defined (SOLARIS) || defined(CYGWIN)
123	>	#if defined(LINUX) || defined (SOLARIS) || defined(CYGWIN) || defined(HPUX)
124		FILE *f;
125		#endif
126
127	<	disk_stat_t *disk_ptr;
127	>	sg_fs_stats *disk_ptr;
128
129		#ifdef SOLARIS
130		struct mnttab mp;
131		struct statvfs fs;
132		#endif
133	<	#if defined(LINUX) || defined(CYGWIN)
133	>	#if defined(LINUX) || defined(CYGWIN) || defined(HPUX)
134		struct mntent *mp;
135		struct statfs fs;
136		#endif
137		#ifdef ALLBSD
138		int nummnt;
139	+	#ifdef HAVE_STATVFS
140	+	struct statvfs *mp;
141	+	#else
142		struct statfs *mp;
143		#endif
144	+	#endif
145
139	–	if(watermark==-1){
140	–	disk_stats=malloc(START_VAL * sizeof(disk_stat_t));
141	–	if(disk_stats==NULL){
142	–	return NULL;
143	–	}
144	–	watermark=START_VAL;
145	–	init_disk_stat(0, watermark-1, disk_stats);
146	–	}
146		#ifdef ALLBSD
147	<	nummnt=getmntinfo(&mp , MNT_LOCAL);
147	>	nummnt=getmntinfo(&mp, MNT_WAIT);
148		if (nummnt<=0){
149	+	sg_set_error_with_errno(SG_ERROR_GETMNTINFO, NULL);
150		return NULL;
151		}
152		for(;nummnt--; mp++){
153		valid_type = is_valid_fs_type(mp->f_fstypename);
154		#endif
155
156	<	#if defined(LINUX) || defined(CYGWIN)
156	>	#if defined(LINUX) || defined(CYGWIN) || defined(HPUX)
157	>	#ifdef MNT_MNTTAB
158	>	if ((f=setmntent(MNT_MNTTAB, "r" ))==NULL){
159	>	#else
160		if ((f=setmntent("/etc/mtab", "r" ))==NULL){
161	+	#endif
162	+	sg_set_error(SG_ERROR_SETMNTENT, NULL);
163		return NULL;
164		}
165
#	Line 168 | Line 173 | disk_stat_t *get_disk_stats(int *entries){
173
174		#ifdef SOLARIS
175		if ((f=fopen("/etc/mnttab", "r" ))==NULL){
176	+	sg_set_error_with_errno(SG_ERROR_OPEN, "/etc/mnttab");
177		return NULL;
178		}
179		while((getmntent(f, &mp)) == 0){
#	Line 178 | Line 184 | disk_stat_t *get_disk_stats(int *entries){
184		#endif
185
186		if(valid_type){
187	<	if(num_disks>watermark-1){
188	<	disk_ptr=disk_stats;
183	<	if((disk_stats=realloc(disk_stats, (watermark*2 * sizeof(disk_stat_t))))==NULL){
184	<	disk_stats=disk_ptr;
185	<	return NULL;
186	<	}
187	<
188	<	watermark=watermark*2;
189	<	init_disk_stat(num_disks, watermark-1, disk_stats);
187	>	if (VECTOR_RESIZE(disk_stats, num_disks + 1) < 0) {
188	>	return NULL;
189		}
191	–
190		disk_ptr=disk_stats+num_disks;
191	+
192		#ifdef ALLBSD
193	<	if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp->f_mntfromname))==NULL){
193	>	if (sg_update_string(&disk_ptr->device_name, mp->f_mntfromname) < 0) {
194		return NULL;
195		}
196	<
198	<	if((disk_ptr->fs_type=copy_string(disk_ptr->fs_type, mp->f_fstypename))==NULL){
196	>	if (sg_update_string(&disk_ptr->fs_type, mp->f_fstypename) < 0) {
197		return NULL;
198		}
199	<
202	<	if((disk_ptr->mnt_point=copy_string(disk_ptr->mnt_point, mp->f_mntonname))==NULL){
199	>	if (sg_update_string(&disk_ptr->mnt_point, mp->f_mntonname) < 0) {
200		return NULL;
201		}
202
#	Line 212 | Line 209 | disk_stat_t *get_disk_stats(int *entries){
209		/* Freebsd doesn't have a "available" inodes */
210		disk_ptr->used_inodes=disk_ptr->total_inodes-disk_ptr->free_inodes;
211		#endif
212	<	#if defined(LINUX) || defined(CYGWIN)
213	<	if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp->mnt_fsname))==NULL){
212	>	#if defined(LINUX) || defined(CYGWIN) || defined(HPUX)
213	>	if (sg_update_string(&disk_ptr->device_name, mp->mnt_fsname) < 0) {
214		return NULL;
215		}
216
217	<	if((disk_ptr->fs_type=copy_string(disk_ptr->fs_type, mp->mnt_type))==NULL){
217	>	if (sg_update_string(&disk_ptr->fs_type, mp->mnt_type) < 0) {
218		return NULL;
219		}
220
221	<	if((disk_ptr->mnt_point=copy_string(disk_ptr->mnt_point, mp->mnt_dir))==NULL){
221	>	if (sg_update_string(&disk_ptr->mnt_point, mp->mnt_dir) < 0) {
222		return NULL;
223		}
224		disk_ptr->size = (long long)fs.f_bsize * (long long)fs.f_blocks;
#	Line 235 | Line 232 | disk_stat_t *get_disk_stats(int *entries){
232		#endif
233
234		#ifdef SOLARIS
238	–	/* Memory leak in event of realloc failing */
235		/* Maybe make this char[bigenough] and do strncpy's and put a null in the end?
236		* Downside is its a bit hungry for a lot of mounts, as MNT_MAX_SIZE would prob
237		* be upwards of a k each
238		*/
239	<	if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp.mnt_special))==NULL){
239	>	if (sg_update_string(&disk_ptr->device_name, mp.mnt_special) < 0) {
240		return NULL;
241		}
242
243	<	if((disk_ptr->fs_type=copy_string(disk_ptr->fs_type, mp.mnt_fstype))==NULL){
244	<	return NULL;
245	<	}
243	>	if (sg_update_string(&disk_ptr->fs_type, mp.mnt_fstype) < 0) {
244	>	return NULL;
245	>	}
246
247	<	if((disk_ptr->mnt_point=copy_string(disk_ptr->mnt_point, mp.mnt_mountp))==NULL){
248	<	return NULL;
249	<	}
247	>	if (sg_update_string(&disk_ptr->mnt_point, mp.mnt_mountp) < 0) {
248	>	return NULL;
249	>	}
250
251		disk_ptr->size = (long long)fs.f_frsize * (long long)fs.f_blocks;
252		disk_ptr->avail = (long long)fs.f_frsize * (long long)fs.f_bavail;
#	Line 267 | Line 263 | disk_stat_t *get_disk_stats(int *entries){
263		*entries=num_disks;
264
265		/* If this fails, there is very little i can do about it, so
266	<	I'll ignore it :) */
267	<	#if defined(LINUX) || defined(CYGWIN)
266	>	I'll ignore it :) */
267	>	#if defined(LINUX) || defined(CYGWIN) || defined(HPUX)
268		endmntent(f);
269		#endif
270		#if defined(SOLARIS)
#	Line 278 | Line 274 | disk_stat_t *get_disk_stats(int *entries){
274		return disk_stats;
275
276		}
281	–	void diskio_stat_init(int start, int end, diskio_stat_t *diskio_stats){
277
278	<	for(diskio_stats+=start; start<end; start++){
279	<	diskio_stats->disk_name=NULL;
280	<
281	<	diskio_stats++;
282	<	}
278	>	int sg_fs_compare_device_name(const void *va, const void *vb) {
279	>	const sg_fs_stats *a = (const sg_fs_stats *)va;
280	>	const sg_fs_stats *b = (const sg_fs_stats *)vb;
281	>
282	>	return strcmp(a->device_name, b->device_name);
283		}
284
285	<	diskio_stat_t *diskio_stat_malloc(int needed_entries, int *cur_entries, diskio_stat_t *diskio_stats){
285	>	int sg_fs_compare_mnt_point(const void *va, const void *vb) {
286	>	const sg_fs_stats *a = (const sg_fs_stats *)va;
287	>	const sg_fs_stats *b = (const sg_fs_stats *)vb;
288
289	<	if(diskio_stats==NULL){
289	>	return strcmp(a->mnt_point, b->mnt_point);
290	>	}
291
292	<	if((diskio_stats=malloc(needed_entries * sizeof(diskio_stat_t)))==NULL){
293	<	return NULL;
294	<	}
297	<	diskio_stat_init(0, needed_entries, diskio_stats);
298	<	*cur_entries=needed_entries;
292	>	static void diskio_stat_init(sg_disk_io_stats *d) {
293	>	d->disk_name = NULL;
294	>	}
295
296	<	return diskio_stats;
297	<	}
302	<
303	<
304	<	if(*cur_entries<needed_entries){
305	<	diskio_stats=realloc(diskio_stats, (sizeof(diskio_stat_t)*needed_entries));
306	<	if(diskio_stats==NULL){
307	<	return NULL;
308	<	}
309	<	diskio_stat_init(*cur_entries, needed_entries, diskio_stats);
310	<	*cur_entries=needed_entries;
311	<	}
312	<
313	<	return diskio_stats;
296	>	static void diskio_stat_destroy(sg_disk_io_stats *d) {
297	>	free(d->disk_name);
298		}
299
300	<	static diskio_stat_t *diskio_stats=NULL;
301	<	static int num_diskio=0;
300	>	VECTOR_DECLARE_STATIC(diskio_stats, sg_disk_io_stats, 10,
301	>	diskio_stat_init, diskio_stat_destroy);
302
303		#ifdef LINUX
304		typedef struct {
#	Line 323 | Line 307 | typedef struct {
307		} partition;
308		#endif
309
310	<	diskio_stat_t *get_diskio_stats(int *entries){
311	<
328	<	static int sizeof_diskio_stats=0;
310	>	sg_disk_io_stats *sg_get_disk_io_stats(int *entries){
311	>	int num_diskio;
312		#ifndef LINUX
313	<	diskio_stat_t *diskio_stats_ptr;
313	>	sg_disk_io_stats *diskio_stats_ptr;
314		#endif
315
316	+	#ifdef HPUX
317	+	long long rbytes = 0, wbytes = 0;
318	+	struct dirent *dinfo = NULL;
319	+	struct stat lstatinfo;
320	+	struct pst_diskinfo pstat_diskinfo[DISK_BATCH];
321	+	char fullpathbuf[1024] = {0};
322	+	dev_t diskid;
323	+	DIR *dh = NULL;
324	+	int diskidx = 0;
325	+	int num, i;
326	+	#endif
327		#ifdef SOLARIS
328	<	kstat_ctl_t *kc;
329	<	kstat_t *ksp;
328	>	kstat_ctl_t *kc;
329	>	kstat_t *ksp;
330		kstat_io_t kios;
331		#endif
332		#ifdef LINUX
#	Line 340 | Line 334 | diskio_stat_t *get_diskio_stats(int *entries){
334		char *line_ptr;
335		int major, minor;
336		int has_pp_stats = 1;
337	<	static partition *parts = NULL;
344	<	static int alloc_parts = 0;
337	>	VECTOR_DECLARE_STATIC(parts, partition, 16, NULL, NULL);
338		int i, n;
339		time_t now;
340		const char *format;
341		#endif
342	<	#ifdef FREEBSD
342	>	#if defined(FREEBSD) || defined(DFBSD)
343		static struct statinfo stats;
344		static int stats_init = 0;
345		int counter;
#	Line 357 | Line 350 | diskio_stat_t *get_diskio_stats(int *entries){
350		#endif
351		#ifdef NETBSD
352		struct disk_sysctl *stats;
353	+	#endif
354	+	#ifdef OPENBSD
355	+	int diskcount;
356	+	char *disknames, *name, *bufpp;
357	+	char **dk_name;
358	+	struct diskstats *stats;
359	+	#endif
360	+	#ifdef NETBSD
361	+	#define MIBSIZE 3
362	+	#endif
363	+	#ifdef OPENBSD
364	+	#define MIBSIZE 2
365	+	#endif
366	+	#if defined(NETBSD) || defined(OPENBSD)
367		int num_disks, i;
368	<	int mib[3];
368	>	int mib[MIBSIZE];
369		size_t size;
370		#endif
371
372		num_diskio=0;
373
374	<	#ifdef NETBSD
374	>	#ifdef HPUX
375	>	while (1) {
376	>	num = pstat_getdisk(pstat_diskinfo, sizeof pstat_diskinfo[0],
377	>	DISK_BATCH, diskidx);
378	>	if (num == -1) {
379	>	sg_set_error_with_errno(SG_ERROR_PSTAT,
380	>	"pstat_getdisk");
381	>	return NULL;
382	>	} else if (num == 0) {
383	>	break;
384	>	}
385	>
386	>	for (i = 0; i < num; i++) {
387	>	struct pst_diskinfo *di = &pstat_diskinfo[i];
388	>
389	>	/* Skip "disabled" disks. */
390	>	if (di->psd_status == 0) {
391	>	continue;
392	>	}
393	>
394	>	/* We can't seperate the reads from the writes, we'll
395	>	* just give the same to each. (This value is in
396	>	* 64-byte chunks according to the pstat header file,
397	>	* and can wrap to be negative.)
398	>	*/
399	>	rbytes = wbytes = ((unsigned long) di->psd_dkwds) * 64LL;
400	>
401	>	/* Skip unused disks. */
402	>	if (rbytes == 0 && wbytes == 0) {
403	>	continue;
404	>	}
405	>
406	>	if (VECTOR_RESIZE(diskio_stats, num_diskio + 1) < 0) {
407	>	return NULL;
408	>	}
409	>
410	>	diskio_stats_ptr = diskio_stats + num_diskio;
411	>
412	>	diskio_stats_ptr->read_bytes = rbytes;
413	>	diskio_stats_ptr->write_bytes = wbytes;
414	>
415	>	diskio_stats_ptr->systime = time(NULL);
416	>
417	>	num_diskio++;
418	>
419	>	/* FIXME This should use a static cache, like the Linux
420	>	* code below. */
421	>	if (diskio_stats_ptr->disk_name == NULL) {
422	>	dh = opendir("/dev/dsk");
423	>	if (dh == NULL) {
424	>	continue;
425	>	}
426	>
427	>	diskid = (di->psd_dev.psd_major << 24) | di->psd_dev.psd_minor;
428	>	while (1) {
429	>	dinfo = readdir(dh);
430	>	if (dinfo == NULL) {
431	>	break;
432	>	}
433	>	snprintf(fullpathbuf, sizeof(fullpathbuf), "/dev/dsk/%s", dinfo->d_name);
434	>	if (lstat(fullpathbuf, &lstatinfo) < 0) {
435	>	continue;
436	>	}
437	>
438	>	if (lstatinfo.st_rdev == diskid) {
439	>	if (sg_update_string(&diskio_stats_ptr->disk_name, dinfo->d_name) < 0) {
440	>	return NULL;
441	>	}
442	>	break;
443	>	}
444	>	}
445	>	closedir(dh);
446	>
447	>	if (diskio_stats_ptr->disk_name == NULL) {
448	>	if (sg_update_string(&diskio_stats_ptr->disk_name, di->psd_hw_path.psh_name) < 0) {
449	>	return NULL;
450	>	}
451	>	}
452	>	}
453	>	}
454	>	diskidx = pstat_diskinfo[num - 1].psd_idx + 1;
455	>	}
456	>	#endif
457	>	#ifdef OPENBSD
458		mib[0] = CTL_HW;
459	+	mib[1] = HW_DISKCOUNT;
460	+
461	+	size = sizeof(diskcount);
462	+	if (sysctl(mib, MIBSIZE, &diskcount, &size, NULL, 0) < 0) {
463	+	sg_set_error_with_errno(SG_ERROR_SYSCTL, "CTL_HW.HW_DISKCOUNT");
464	+	return NULL;
465	+	}
466	+
467	+	mib[0] = CTL_HW;
468	+	mib[1] = HW_DISKNAMES;
469	+
470	+	if (sysctl(mib, MIBSIZE, NULL, &size, NULL, 0) < 0) {
471	+	sg_set_error_with_errno(SG_ERROR_SYSCTL, "CTL_HW.HW_DISKNAMES");
472	+	return NULL;
473	+	}
474	+
475	+	disknames = sg_malloc(size);
476	+	if (disknames == NULL) {
477	+	return NULL;
478	+	}
479	+
480	+	if (sysctl(mib, MIBSIZE, disknames, &size, NULL, 0) < 0) {
481	+	sg_set_error_with_errno(SG_ERROR_SYSCTL, "CTL_HW.HW_DISKNAMES");
482	+	return NULL;
483	+	}
484	+
485	+	dk_name = sg_malloc(diskcount * sizeof(char *));
486	+	bufpp = disknames;
487	+	for (i = 0; i < diskcount && (name = strsep(&bufpp, ",")) != NULL; i++) {
488	+	dk_name[i] = name;
489	+	}
490	+	#endif
491	+
492	+	#if defined(NETBSD) || defined(OPENBSD)
493	+	mib[0] = CTL_HW;
494		mib[1] = HW_DISKSTATS;
495	+	#ifdef NETBSD
496		mib[2] = sizeof(struct disk_sysctl);
497	+	#endif
498
499	<	if (sysctl(mib, 3, NULL, &size, NULL, 0) < 0) {
499	>	if (sysctl(mib, MIBSIZE, NULL, &size, NULL, 0) < 0) {
500	>	sg_set_error_with_errno(SG_ERROR_SYSCTL, "CTL_HW.HW_DISKSTATS");
501		return NULL;
502		}
503	+
504	+	#ifdef NETBSD
505		num_disks = size / sizeof(struct disk_sysctl);
506	+	#else
507	+	num_disks = size / sizeof(struct diskstats);
508	+	#endif
509
510	<	stats = malloc(size);
510	>	stats = sg_malloc(size);
511		if (stats == NULL) {
512		return NULL;
513		}
514
515	<	if (sysctl(mib, 3, stats, &size, NULL, 0) < 0) {
515	>	if (sysctl(mib, MIBSIZE, stats, &size, NULL, 0) < 0) {
516	>	sg_set_error_with_errno(SG_ERROR_SYSCTL, "CTL_HW.HW_DISKSTATS");
517		return NULL;
518		}
519
520		for (i = 0; i < num_disks; i++) {
521	+	const char *name;
522		u_int64_t rbytes, wbytes;
523
524	+	#ifdef NETBSD
525		#ifdef HAVE_DK_RBYTES
526		rbytes = stats[i].dk_rbytes;
527		wbytes = stats[i].dk_wbytes;
528		#else
529	<	/* Before 1.7, NetBSD merged reads and writes. */
529	>	/* Before 2.0, NetBSD merged reads and writes. */
530		rbytes = wbytes = stats[i].dk_bytes;
531		#endif
532	+	#else
533	+	#ifdef HAVE_DS_RBYTES
534	+	rbytes = stats[i].ds_rbytes;
535	+	wbytes = stats[i].ds_wbytes;
536	+	#else
537	+	/* Before 3.5, OpenBSD merged reads and writes */
538	+	rbytes = wbytes = stats[i].ds_bytes;
539	+	#endif
540	+	#endif
541
542		/* Don't keep stats for disks that have never been used. */
543		if (rbytes == 0 && wbytes == 0) {
544		continue;
545		}
546
547	<	diskio_stats = diskio_stat_malloc(num_diskio + 1,
403	<	&sizeof_diskio_stats,
404	<	diskio_stats);
405	<	if (diskio_stats == NULL) {
547	>	if (VECTOR_RESIZE(diskio_stats, num_diskio + 1) < 0) {
548		return NULL;
549		}
550		diskio_stats_ptr = diskio_stats + num_diskio;
551
552		diskio_stats_ptr->read_bytes = rbytes;
553		diskio_stats_ptr->write_bytes = wbytes;
554	<	if (diskio_stats_ptr->disk_name != NULL) {
555	<	free(diskio_stats_ptr->disk_name);
554	>	#ifdef NETBSD
555	>	name = stats[i].dk_name;
556	>	#else
557	>	name = dk_name[i];
558	>	#endif
559	>	if (sg_update_string(&diskio_stats_ptr->disk_name, name) < 0) {
560	>	return NULL;
561		}
415	–	diskio_stats_ptr->disk_name = strdup(stats[i].dk_name);
562		diskio_stats_ptr->systime = time(NULL);
563
564		num_diskio++;
565		}
566
567		free(stats);
568	+	#ifdef OPENBSD
569	+	free(dk_name);
570	+	free(disknames);
571		#endif
572	+	#endif
573
574	<	#ifdef FREEBSD
574	>	#if defined(FREEBSD) || defined(DFBSD)
575		if (!stats_init) {
576	<	stats.dinfo=malloc(sizeof(struct devinfo));
576	>	stats.dinfo=sg_malloc(sizeof(struct devinfo));
577		if(stats.dinfo==NULL) return NULL;
578		bzero(stats.dinfo, sizeof(struct devinfo));
579		stats_init = 1;
580		}
581		#ifdef FREEBSD5
582	<	if ((devstat_getdevs(NULL, &stats)) < 0) return NULL;
582	>	if ((devstat_getdevs(NULL, &stats)) < 0) {
583	>	/* FIXME devstat functions return a string error in
584	>	devstat_errbuf */
585	>	sg_set_error(SG_ERROR_DEVSTAT_GETDEVS, NULL);
586	>	return NULL;
587	>	}
588		/* Not aware of a get all devices, so i said 999. If we ever
589		* find a machine with more than 999 disks, then i'll change
590		* this number :)
591		*/
592	<	if (devstat_selectdevs(&dev_sel, &n_selected, &n_selections, &sel_gen, stats.dinfo->generation, stats.dinfo->devices, stats.dinfo->numdevs, NULL, 0, NULL, 0, DS_SELECT_ONLY, 999, 1) < 0) return NULL;
592	>	if (devstat_selectdevs(&dev_sel, &n_selected, &n_selections, &sel_gen, stats.dinfo->generation, stats.dinfo->devices, stats.dinfo->numdevs, NULL, 0, NULL, 0, DS_SELECT_ONLY, 999, 1) < 0) {
593	>	sg_set_error(SG_ERROR_DEVSTAT_SELECTDEVS, NULL);
594	>	return NULL;
595	>	}
596		#else
597	<	if ((getdevs(&stats)) < 0) return NULL;
597	>	if ((getdevs(&stats)) < 0) {
598	>	sg_set_error(SG_ERROR_DEVSTAT_GETDEVS, NULL);
599	>	return NULL;
600	>	}
601		/* Not aware of a get all devices, so i said 999. If we ever
602		* find a machine with more than 999 disks, then i'll change
603		* this number :)
604		*/
605	<	if (selectdevs(&dev_sel, &n_selected, &n_selections, &sel_gen, stats.dinfo->generation, stats.dinfo->devices, stats.dinfo->numdevs, NULL, 0, NULL, 0, DS_SELECT_ONLY, 999, 1) < 0) return NULL;
605	>	if (selectdevs(&dev_sel, &n_selected, &n_selections, &sel_gen, stats.dinfo->generation, stats.dinfo->devices, stats.dinfo->numdevs, NULL, 0, NULL, 0, DS_SELECT_ONLY, 999, 1) < 0) {
606	>	sg_set_error(SG_ERROR_DEVSTAT_SELECTDEVS, NULL);
607	>	return NULL;
608	>	}
609		#endif
610
611		for(counter=0;counter<stats.dinfo->numdevs;counter++){
#	Line 456 | Line 620 | diskio_stat_t *get_diskio_stats(int *entries){
620		#else
621		if((dev_ptr->bytes_read==0) && (dev_ptr->bytes_written==0)) continue;
622		#endif
623	<	if((diskio_stats=diskio_stat_malloc(num_diskio+1, &sizeof_diskio_stats, diskio_stats))==NULL){
623	>
624	>	if (VECTOR_RESIZE(diskio_stats, num_diskio + 1) < 0) {
625		return NULL;
626		}
627		diskio_stats_ptr=diskio_stats+num_diskio;
#	Line 469 | Line 634 | diskio_stat_t *get_diskio_stats(int *entries){
634		diskio_stats_ptr->write_bytes=dev_ptr->bytes_written;
635		#endif
636		if(diskio_stats_ptr->disk_name!=NULL) free(diskio_stats_ptr->disk_name);
637	<	asprintf((&diskio_stats_ptr->disk_name), "%s%d", dev_ptr->device_name, dev_ptr->unit_number);
637	>	if (asprintf((&diskio_stats_ptr->disk_name), "%s%d", dev_ptr->device_name, dev_ptr->unit_number) == -1) {
638	>	sg_set_error_with_errno(SG_ERROR_ASPRINTF, NULL);
639	>	return NULL;
640	>	}
641		diskio_stats_ptr->systime=time(NULL);
642
643		num_diskio++;
#	Line 479 | Line 647 | diskio_stat_t *get_diskio_stats(int *entries){
647		#endif
648		#ifdef SOLARIS
649		if ((kc = kstat_open()) == NULL) {
650	<	return NULL;
651	<	}
650	>	sg_set_error(SG_ERROR_KSTAT_OPEN, NULL);
651	>	return NULL;
652	>	}
653
654		for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
655	<	if (!strcmp(ksp->ks_class, "disk")) {
655	>	if (!strcmp(ksp->ks_class, "disk")) {
656
657		if(ksp->ks_type != KSTAT_TYPE_IO) continue;
658		/* We dont want metadevices appearins as num_diskio */
659		if(strcmp(ksp->ks_module, "md")==0) continue;
660	<	if((kstat_read(kc, ksp, &kios))==-1){
660	>	if((kstat_read(kc, ksp, &kios))==-1){
661		}
662
663	<	if((diskio_stats=diskio_stat_malloc(num_diskio+1, &sizeof_diskio_stats, diskio_stats))==NULL){
663	>	if (VECTOR_RESIZE(diskio_stats, num_diskio + 1) < 0) {
664		kstat_close(kc);
665		return NULL;
666		}
667		diskio_stats_ptr=diskio_stats+num_diskio;
668
669		diskio_stats_ptr->read_bytes=kios.nread;
501	–
670		diskio_stats_ptr->write_bytes=kios.nwritten;
671	<
672	<	if(diskio_stats_ptr->disk_name!=NULL) free(diskio_stats_ptr->disk_name);
673	<
674	<	diskio_stats_ptr->disk_name=strdup(ksp->ks_name);
671	>	if (sg_update_string(&diskio_stats_ptr->disk_name,
672	>	sg_get_svr_from_bsd(ksp->ks_name)) < 0) {
673	>	return NULL;
674	>	}
675		diskio_stats_ptr->systime=time(NULL);
676	+
677		num_diskio++;
678		}
679		}
#	Line 522 | Line 691 | diskio_stat_t *get_diskio_stats(int *entries){
691		the same format. */
692
693		f = fopen("/proc/diskstats", "r");
694	<	format = " %d %d %19s %*d %*d %lld %*d %*d %*d %lld";
694	>	format = " %d %d %99s %*d %*d %lld %*d %*d %*d %lld";
695		if (f == NULL) {
696		f = fopen("/proc/partitions", "r");
697	<	format = " %d %d %*d %19s %*d %*d %lld %*d %*d %*d %lld";
697	>	format = " %d %d %*d %99s %*d %*d %lld %*d %*d %*d %lld";
698		}
699		if (f == NULL) goto out;
700		now = time(NULL);
701
702	<	while ((line_ptr = f_read_line(f, "")) != NULL) {
703	<	char name[20];
702	>	while ((line_ptr = sg_f_read_line(f, "")) != NULL) {
703	>	char name[100];
704		char *s;
705		long long rsect, wsect;
706
#	Line 552 | Line 721 | diskio_stat_t *get_diskio_stats(int *entries){
721		wsect = 0;
722		}
723
724	<	diskio_stats = diskio_stat_malloc(n + 1, &sizeof_diskio_stats,
725	<	diskio_stats);
557	<	if (diskio_stats == NULL) goto out;
558	<	if (n >= alloc_parts) {
559	<	alloc_parts += 16;
560	<	parts = realloc(parts, alloc_parts * sizeof *parts);
561	<	if (parts == NULL) {
562	<	alloc_parts = 0;
563	<	goto out;
564	<	}
724	>	if (VECTOR_RESIZE(diskio_stats, n + 1) < 0) {
725	>	goto out;
726		}
727	+	if (VECTOR_RESIZE(parts, n + 1) < 0) {
728	+	goto out;
729	+	}
730
731	<	if (diskio_stats[n].disk_name != NULL)
732	<	free(diskio_stats[n].disk_name);
733	<	diskio_stats[n].disk_name = strdup(name);
731	>	if (sg_update_string(&diskio_stats[n].disk_name, name) < 0) {
732	>	goto out;
733	>	}
734		diskio_stats[n].read_bytes = rsect * 512;
735		diskio_stats[n].write_bytes = wsect * 512;
736		diskio_stats[n].systime = now;
#	Line 576 | Line 740 | diskio_stat_t *get_diskio_stats(int *entries){
740		n++;
741		}
742
743	+	fclose(f);
744	+	f = NULL;
745	+
746		if (!has_pp_stats) {
747	<	/* This is an older kernel without stats in /proc/partitions.
748	<	Read what we can from /proc/stat instead. */
747	>	/* This is an older kernel where /proc/partitions doesn't
748	>	contain stats. Read what we can from /proc/stat instead, and
749	>	fill in the appropriate bits of the list allocated above. */
750
751		f = fopen("/proc/stat", "r");
752		if (f == NULL) goto out;
753		now = time(NULL);
754
755	<	line_ptr = f_read_line(f, "disk_io:");
755	>	line_ptr = sg_f_read_line(f, "disk_io:");
756		if (line_ptr == NULL) goto out;
757
758		while((line_ptr=strchr(line_ptr, ' '))!=NULL){
#	Line 648 | Line 816 | out:
816		#endif
817
818		#ifdef CYGWIN
819	+	sg_set_error(SG_ERROR_UNSUPPORTED, "Cygwin");
820		return NULL;
821		#endif
822
#	Line 656 | Line 825 | out:
825		return diskio_stats;
826		}
827
828	<	diskio_stat_t *get_diskio_stats_diff(int *entries){
829	<	static diskio_stat_t *diskio_stats_diff=NULL;
830	<	static int sizeof_diskio_stats_diff=0;
831	<	diskio_stat_t *diskio_stats_diff_ptr, *diskio_stats_ptr;
832	<	int disks, x, y;
828	>	sg_disk_io_stats *sg_get_disk_io_stats_diff(int *entries){
829	>	VECTOR_DECLARE_STATIC(diff, sg_disk_io_stats, 1,
830	>	diskio_stat_init, diskio_stat_destroy);
831	>	sg_disk_io_stats *src = NULL, *dest;
832	>	int i, j, diff_count, new_count;
833
834	<	if(diskio_stats==NULL){
835	<	diskio_stats_ptr=get_diskio_stats(&disks);
836	<	*entries=disks;
668	<	return diskio_stats_ptr;
834	>	if (diskio_stats == NULL) {
835	>	/* No previous stats, so we can't calculate a difference. */
836	>	return sg_get_disk_io_stats(entries);
837		}
838
839	<	diskio_stats_diff=diskio_stat_malloc(num_diskio, &sizeof_diskio_stats_diff, diskio_stats_diff);
840	<	if(diskio_stats_diff==NULL){
839	>	/* Resize the results array to match the previous stats. */
840	>	diff_count = VECTOR_SIZE(diskio_stats);
841	>	if (VECTOR_RESIZE(diff, diff_count) < 0) {
842		return NULL;
843		}
844
845	<	diskio_stats_diff_ptr=diskio_stats_diff;
846	<	diskio_stats_ptr=diskio_stats;
845	>	/* Copy the previous stats into the result. */
846	>	for (i = 0; i < diff_count; i++) {
847	>	src = &diskio_stats[i];
848	>	dest = &diff[i];
849
850	<	for(disks=0;disks<num_diskio;disks++){
851	<	if(diskio_stats_diff_ptr->disk_name!=NULL){
681	<	free(diskio_stats_diff_ptr->disk_name);
850	>	if (sg_update_string(&dest->disk_name, src->disk_name) < 0) {
851	>	return NULL;
852		}
853	<	diskio_stats_diff_ptr->disk_name=strdup(diskio_stats_ptr->disk_name);
854	<	diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes;
855	<	diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes;
856	<	diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime;
853	>	dest->read_bytes = src->read_bytes;
854	>	dest->write_bytes = src->write_bytes;
855	>	dest->systime = src->systime;
856	>	}
857
858	<	diskio_stats_diff_ptr++;
859	<	diskio_stats_ptr++;
858	>	/* Get a new set of stats. */
859	>	if (sg_get_disk_io_stats(&new_count) == NULL) {
860	>	return NULL;
861		}
862
863	<	diskio_stats_ptr=get_diskio_stats(&disks);
864	<	diskio_stats_diff_ptr=diskio_stats_diff;
863	>	/* For each previous stat... */
864	>	for (i = 0; i < diff_count; i++) {
865	>	dest = &diff[i];
866
867	<	for(x=0;x<sizeof_diskio_stats_diff;x++){
868	<
869	<	if((strcmp(diskio_stats_diff_ptr->disk_name, diskio_stats_ptr->disk_name))==0){
870	<	diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes-diskio_stats_diff_ptr->read_bytes;
871	<	diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes-diskio_stats_diff_ptr->write_bytes;
872	<	diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime-diskio_stats_diff_ptr->systime;
873	<	}else{
702	<	diskio_stats_ptr=diskio_stats;
703	<	for(y=0;y<disks;y++){
704	<	if((strcmp(diskio_stats_diff_ptr->disk_name, diskio_stats_ptr->disk_name))==0){
705	<	diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes-diskio_stats_diff_ptr->read_bytes;
706	<	diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes-diskio_stats_diff_ptr->write_bytes;
707	<	diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime-diskio_stats_diff_ptr->systime;
708	<
709	<	break;
710	<	}
711	<
712	<	diskio_stats_ptr++;
867	>	/* ... find the corresponding new stat ... */
868	>	for (j = 0; j < new_count; j++) {
869	>	/* Try the new stat in the same position first,
870	>	since that's most likely to be it. */
871	>	src = &diskio_stats[(i + j) % new_count];
872	>	if (strcmp(src->disk_name, dest->disk_name) == 0) {
873	>	break;
874		}
875		}
876	+	if (j == new_count) {
877	+	/* No match found. */
878	+	continue;
879	+	}
880
881	<	diskio_stats_ptr++;
882	<	diskio_stats_diff_ptr++;
883	<
881	>	/* ... and subtract the previous stat from it to get the
882	>	difference. */
883	>	dest->read_bytes = src->read_bytes - dest->read_bytes;
884	>	dest->write_bytes = src->write_bytes - dest->write_bytes;
885	>	dest->systime = src->systime - dest->systime;
886		}
887	<
888	<	*entries=sizeof_diskio_stats_diff;
889	<	return diskio_stats_diff;
887	>
888	>	*entries = diff_count;
889	>	return diff;
890		}
891	+
892	+	int sg_disk_io_compare_name(const void *va, const void *vb) {
893	+	const sg_disk_io_stats *a = (const sg_disk_io_stats *)va;
894	+	const sg_disk_io_stats *b = (const sg_disk_io_stats *)vb;
895	+
896	+	return strcmp(a->disk_name, b->disk_name);
897	+	}
898	+

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