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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 1.53 by tdb, Mon Feb 16 14:55:32 2004 UTC vs.
Revision 1.75 by ats, Sat Nov 6 15:32:33 2004 UTC

#	Line 1 | Line 1
1		/*
2	<	* i-scream central monitoring system
2	>	* i-scream libstatgrab
3		* http://www.i-scream.org
4		* Copyright (C) 2000-2004 i-scream
5		*
#	Line 30 | 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>
44	–	#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"}
54		#endif
55
56		#ifdef CYGWIN
#	Line 65 | Line 66
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"}
70		#endif
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"}
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)));
84	<	if(orig_ptr==NULL){
85	<	return NULL;
86	<	}
87	<	strcpy(orig_ptr, newtext);
88	<
89	<	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++){
96	<	disk_stats->device_name=NULL;
97	<	disk_stats->fs_type=NULL;
98	<	disk_stats->mnt_point=NULL;
99	<
100	<	disk_stats++;
101	<	}
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
#	Line 113 | 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
118	–	static disk_stat_t *disk_stats;
119	–	static int watermark=-1;
120	–
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
142	–	if(watermark==-1){
143	–	disk_stats=malloc(START_VAL * sizeof(disk_stat_t));
144	–	if(disk_stats==NULL){
145	–	return NULL;
146	–	}
147	–	watermark=START_VAL;
148	–	init_disk_stat(0, watermark-1, disk_stats);
149	–	}
146		#ifdef ALLBSD
147		nummnt=getmntinfo(&mp , MNT_LOCAL);
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 171 | 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 181 | 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;
186	<	if((disk_stats=realloc(disk_stats, (watermark*2 * sizeof(disk_stat_t))))==NULL){
187	<	disk_stats=disk_ptr;
188	<	return NULL;
189	<	}
190	<
191	<	watermark=watermark*2;
192	<	init_disk_stat(num_disks, watermark-1, disk_stats);
187	>	if (VECTOR_RESIZE(disk_stats, num_disks + 1) < 0) {
188	>	return NULL;
189		}
194	–
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	<
201	<	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	<
205	<	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 215 | 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 238 | Line 232 | disk_stat_t *get_disk_stats(int *entries){
232		#endif
233
234		#ifdef SOLARIS
241	–	/* 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 270 | 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 281 | Line 274 | disk_stat_t *get_disk_stats(int *entries){
274		return disk_stats;
275
276		}
284	–	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	<	}
300	<	diskio_stat_init(0, needed_entries, diskio_stats);
301	<	*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	<	}
305	<
306	<
307	<	if(*cur_entries<needed_entries){
308	<	diskio_stats=realloc(diskio_stats, (sizeof(diskio_stat_t)*needed_entries));
309	<	if(diskio_stats==NULL){
310	<	return NULL;
311	<	}
312	<	diskio_stat_init(*cur_entries, needed_entries, diskio_stats);
313	<	*cur_entries=needed_entries;
314	<	}
315	<
316	<	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 326 | Line 307 | typedef struct {
307		} partition;
308		#endif
309
310	<	diskio_stat_t *get_diskio_stats(int *entries){
311	<
331	<	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 343 | 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;
347	<	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;
#	Line 381 | Line 371 | diskio_stat_t *get_diskio_stats(int *entries){
371
372		num_diskio=0;
373
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. */
396	+	rbytes = wbytes = (di->psd_dkwds * 64);
397	+
398	+	/* Skip unused disks. */
399	+	if (rbytes == 0 && wbytes == 0) {
400	+	continue;
401	+	}
402	+
403	+	if (VECTOR_RESIZE(diskio_stats, num_diskio + 1) < 0) {
404	+	return NULL;
405	+	}
406	+
407	+	diskio_stats_ptr = diskio_stats + num_diskio;
408	+
409	+	diskio_stats_ptr->read_bytes = rbytes;
410	+	diskio_stats_ptr->write_bytes = wbytes;
411	+
412	+	diskio_stats_ptr->systime = time(NULL);
413	+
414	+	num_diskio++;
415	+
416	+	if (diskio_stats_ptr->disk_name == NULL) {
417	+	dh = opendir("/dev/dsk");
418	+	if (dh == NULL) {
419	+	continue;
420	+	}
421	+
422	+	diskid = (di->psd_dev.psd_major << 24) | di->psd_dev.psd_minor;
423	+	while (1) {
424	+	dinfo = readdir(dh);
425	+	if (dinfo == NULL) {
426	+	break;
427	+	}
428	+	snprintf(fullpathbuf, sizeof(fullpathbuf), "/dev/dsk/%s", dinfo->d_name);
429	+	if (lstat(fullpathbuf, &lstatinfo) < 0) {
430	+	continue;
431	+	}
432	+
433	+	if (lstatinfo.st_rdev == diskid) {
434	+	if (sg_update_string(&diskio_stats_ptr->disk_name, dinfo->d_name) < 0) {
435	+	return NULL;
436	+	}
437	+	break;
438	+	}
439	+	}
440	+	closedir(dh);
441	+
442	+	if (diskio_stats_ptr->disk_name == NULL) {
443	+	if (sg_update_string(&diskio_stats_ptr->disk_name, di->psd_hw_path.psh_name) < 0) {
444	+	return NULL;
445	+	}
446	+	}
447	+	}
448	+	}
449	+	diskidx = pstat_diskinfo[num - 1].psd_idx + 1;
450	+	}
451	+	#endif
452		#ifdef OPENBSD
453		mib[0] = CTL_HW;
454		mib[1] = HW_DISKCOUNT;
455
456		size = sizeof(diskcount);
457		if (sysctl(mib, MIBSIZE, &diskcount, &size, NULL, 0) < 0) {
458	+	sg_set_error_with_errno(SG_ERROR_SYSCTL, "CTL_HW.HW_DISKCOUNT");
459		return NULL;
460		}
461
#	Line 394 | Line 463 | diskio_stat_t *get_diskio_stats(int *entries){
463		mib[1] = HW_DISKNAMES;
464
465		if (sysctl(mib, MIBSIZE, NULL, &size, NULL, 0) < 0) {
466	+	sg_set_error_with_errno(SG_ERROR_SYSCTL, "CTL_HW.HW_DISKNAMES");
467		return NULL;
468		}
469
470	<	disknames = malloc(size);
470	>	disknames = sg_malloc(size);
471		if (disknames == NULL) {
472		return NULL;
473		}
474
475		if (sysctl(mib, MIBSIZE, disknames, &size, NULL, 0) < 0) {
476	+	sg_set_error_with_errno(SG_ERROR_SYSCTL, "CTL_HW.HW_DISKNAMES");
477		return NULL;
478		}
479
480	<	dk_name = calloc(diskcount, sizeof(char *));
480	>	dk_name = sg_malloc(diskcount * sizeof(char *));
481		bufpp = disknames;
482		for (i = 0; i < diskcount && (name = strsep(&bufpp, ",")) != NULL; i++) {
483		dk_name[i] = name;
#	Line 421 | Line 492 | diskio_stat_t *get_diskio_stats(int *entries){
492		#endif
493
494		if (sysctl(mib, MIBSIZE, NULL, &size, NULL, 0) < 0) {
495	+	sg_set_error_with_errno(SG_ERROR_SYSCTL, "CTL_HW.HW_DISKSTATS");
496		return NULL;
497		}
498
#	Line 430 | Line 502 | diskio_stat_t *get_diskio_stats(int *entries){
502		num_disks = size / sizeof(struct diskstats);
503		#endif
504
505	<	stats = malloc(size);
505	>	stats = sg_malloc(size);
506		if (stats == NULL) {
507		return NULL;
508		}
509
510		if (sysctl(mib, MIBSIZE, stats, &size, NULL, 0) < 0) {
511	+	sg_set_error_with_errno(SG_ERROR_SYSCTL, "CTL_HW.HW_DISKSTATS");
512		return NULL;
513		}
514
515		for (i = 0; i < num_disks; i++) {
516	+	const char *name;
517		u_int64_t rbytes, wbytes;
518
519		#ifdef NETBSD
#	Line 447 | Line 521 | diskio_stat_t *get_diskio_stats(int *entries){
521		rbytes = stats[i].dk_rbytes;
522		wbytes = stats[i].dk_wbytes;
523		#else
524	<	/* Before 1.7, NetBSD merged reads and writes. */
524	>	/* Before 2.0, NetBSD merged reads and writes. */
525		rbytes = wbytes = stats[i].dk_bytes;
526		#endif
527		#else
528	+	#ifdef HAVE_DS_RBYTES
529	+	rbytes = stats[i].ds_rbytes;
530	+	wbytes = stats[i].ds_wbytes;
531	+	#else
532	+	/* Before 3.5, OpenBSD merged reads and writes */
533		rbytes = wbytes = stats[i].ds_bytes;
534		#endif
535	+	#endif
536
537		/* Don't keep stats for disks that have never been used. */
538		if (rbytes == 0 && wbytes == 0) {
539		continue;
540		}
541
542	<	diskio_stats = diskio_stat_malloc(num_diskio + 1,
463	<	&sizeof_diskio_stats,
464	<	diskio_stats);
465	<	if (diskio_stats == NULL) {
542	>	if (VECTOR_RESIZE(diskio_stats, num_diskio + 1) < 0) {
543		return NULL;
544		}
545		diskio_stats_ptr = diskio_stats + num_diskio;
546
547		diskio_stats_ptr->read_bytes = rbytes;
548		diskio_stats_ptr->write_bytes = wbytes;
472	–	if (diskio_stats_ptr->disk_name != NULL) {
473	–	free(diskio_stats_ptr->disk_name);
474	–	}
549		#ifdef NETBSD
550	<	diskio_stats_ptr->disk_name = strdup(stats[i].dk_name);
550	>	name = stats[i].dk_name;
551		#else
552	<	diskio_stats_ptr->disk_name = strdup(dk_name[i]);
552	>	name = dk_name[i];
553		#endif
554	+	if (sg_update_string(&diskio_stats_ptr->disk_name, name) < 0) {
555	+	return NULL;
556	+	}
557		diskio_stats_ptr->systime = time(NULL);
558
559		num_diskio++;
#	Line 491 | Line 568 | diskio_stat_t *get_diskio_stats(int *entries){
568
569		#if defined(FREEBSD) || defined(DFBSD)
570		if (!stats_init) {
571	<	stats.dinfo=malloc(sizeof(struct devinfo));
571	>	stats.dinfo=sg_malloc(sizeof(struct devinfo));
572		if(stats.dinfo==NULL) return NULL;
573		bzero(stats.dinfo, sizeof(struct devinfo));
574		stats_init = 1;
575		}
576		#ifdef FREEBSD5
577	<	if ((devstat_getdevs(NULL, &stats)) < 0) return NULL;
577	>	if ((devstat_getdevs(NULL, &stats)) < 0) {
578	>	/* FIXME devstat functions return a string error in
579	>	devstat_errbuf */
580	>	sg_set_error(SG_ERROR_DEVSTAT_GETDEVS, NULL);
581	>	return NULL;
582	>	}
583		/* Not aware of a get all devices, so i said 999. If we ever
584		* find a machine with more than 999 disks, then i'll change
585		* this number :)
586		*/
587	<	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;
587	>	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) {
588	>	sg_set_error(SG_ERROR_DEVSTAT_SELECTDEVS, NULL);
589	>	return NULL;
590	>	}
591		#else
592	<	if ((getdevs(&stats)) < 0) return NULL;
592	>	if ((getdevs(&stats)) < 0) {
593	>	sg_set_error(SG_ERROR_DEVSTAT_GETDEVS, NULL);
594	>	return NULL;
595	>	}
596		/* Not aware of a get all devices, so i said 999. If we ever
597		* find a machine with more than 999 disks, then i'll change
598		* this number :)
599		*/
600	<	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;
600	>	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) {
601	>	sg_set_error(SG_ERROR_DEVSTAT_SELECTDEVS, NULL);
602	>	return NULL;
603	>	}
604		#endif
605
606		for(counter=0;counter<stats.dinfo->numdevs;counter++){
#	Line 524 | Line 615 | diskio_stat_t *get_diskio_stats(int *entries){
615		#else
616		if((dev_ptr->bytes_read==0) && (dev_ptr->bytes_written==0)) continue;
617		#endif
618	<	if((diskio_stats=diskio_stat_malloc(num_diskio+1, &sizeof_diskio_stats, diskio_stats))==NULL){
618	>
619	>	if (VECTOR_RESIZE(diskio_stats, num_diskio + 1) < 0) {
620		return NULL;
621		}
622		diskio_stats_ptr=diskio_stats+num_diskio;
#	Line 537 | Line 629 | diskio_stat_t *get_diskio_stats(int *entries){
629		diskio_stats_ptr->write_bytes=dev_ptr->bytes_written;
630		#endif
631		if(diskio_stats_ptr->disk_name!=NULL) free(diskio_stats_ptr->disk_name);
632	<	asprintf((&diskio_stats_ptr->disk_name), "%s%d", dev_ptr->device_name, dev_ptr->unit_number);
632	>	if (asprintf((&diskio_stats_ptr->disk_name), "%s%d", dev_ptr->device_name, dev_ptr->unit_number) == -1) {
633	>	sg_set_error_with_errno(SG_ERROR_ASPRINTF, NULL);
634	>	return NULL;
635	>	}
636		diskio_stats_ptr->systime=time(NULL);
637
638		num_diskio++;
#	Line 547 | Line 642 | diskio_stat_t *get_diskio_stats(int *entries){
642		#endif
643		#ifdef SOLARIS
644		if ((kc = kstat_open()) == NULL) {
645	<	return NULL;
646	<	}
645	>	sg_set_error(SG_ERROR_KSTAT_OPEN, NULL);
646	>	return NULL;
647	>	}
648
649		for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
650	<	if (!strcmp(ksp->ks_class, "disk")) {
650	>	if (!strcmp(ksp->ks_class, "disk")) {
651
652		if(ksp->ks_type != KSTAT_TYPE_IO) continue;
653		/* We dont want metadevices appearins as num_diskio */
654		if(strcmp(ksp->ks_module, "md")==0) continue;
655	<	if((kstat_read(kc, ksp, &kios))==-1){
655	>	if((kstat_read(kc, ksp, &kios))==-1){
656		}
657
658	<	if((diskio_stats=diskio_stat_malloc(num_diskio+1, &sizeof_diskio_stats, diskio_stats))==NULL){
658	>	if (VECTOR_RESIZE(diskio_stats, num_diskio + 1) < 0) {
659		kstat_close(kc);
660		return NULL;
661		}
662		diskio_stats_ptr=diskio_stats+num_diskio;
663
664		diskio_stats_ptr->read_bytes=kios.nread;
569	–
665		diskio_stats_ptr->write_bytes=kios.nwritten;
666	<
667	<	if(diskio_stats_ptr->disk_name!=NULL) free(diskio_stats_ptr->disk_name);
668	<
669	<	diskio_stats_ptr->disk_name=strdup((char *) get_svr_from_bsd(ksp->ks_name));
666	>	if (sg_update_string(&diskio_stats_ptr->disk_name,
667	>	sg_get_svr_from_bsd(ksp->ks_name)) < 0) {
668	>	return NULL;
669	>	}
670		diskio_stats_ptr->systime=time(NULL);
671	+
672		num_diskio++;
673		}
674		}
#	Line 590 | Line 686 | diskio_stat_t *get_diskio_stats(int *entries){
686		the same format. */
687
688		f = fopen("/proc/diskstats", "r");
689	<	format = " %d %d %19s %*d %*d %lld %*d %*d %*d %lld";
689	>	format = " %d %d %99s %*d %*d %lld %*d %*d %*d %lld";
690		if (f == NULL) {
691		f = fopen("/proc/partitions", "r");
692	<	format = " %d %d %*d %19s %*d %*d %lld %*d %*d %*d %lld";
692	>	format = " %d %d %*d %99s %*d %*d %lld %*d %*d %*d %lld";
693		}
694		if (f == NULL) goto out;
695		now = time(NULL);
696
697	<	while ((line_ptr = f_read_line(f, "")) != NULL) {
698	<	char name[20];
697	>	while ((line_ptr = sg_f_read_line(f, "")) != NULL) {
698	>	char name[100];
699		char *s;
700		long long rsect, wsect;
701
#	Line 620 | Line 716 | diskio_stat_t *get_diskio_stats(int *entries){
716		wsect = 0;
717		}
718
719	<	diskio_stats = diskio_stat_malloc(n + 1, &sizeof_diskio_stats,
720	<	diskio_stats);
625	<	if (diskio_stats == NULL) goto out;
626	<	if (n >= alloc_parts) {
627	<	alloc_parts += 16;
628	<	parts = realloc(parts, alloc_parts * sizeof *parts);
629	<	if (parts == NULL) {
630	<	alloc_parts = 0;
631	<	goto out;
632	<	}
719	>	if (VECTOR_RESIZE(diskio_stats, n + 1) < 0) {
720	>	goto out;
721		}
722	+	if (VECTOR_RESIZE(parts, n + 1) < 0) {
723	+	goto out;
724	+	}
725
726	<	if (diskio_stats[n].disk_name != NULL)
727	<	free(diskio_stats[n].disk_name);
728	<	diskio_stats[n].disk_name = strdup(name);
726	>	if (sg_update_string(&diskio_stats[n].disk_name, name) < 0) {
727	>	goto out;
728	>	}
729		diskio_stats[n].read_bytes = rsect * 512;
730		diskio_stats[n].write_bytes = wsect * 512;
731		diskio_stats[n].systime = now;
#	Line 656 | Line 747 | diskio_stat_t *get_diskio_stats(int *entries){
747		if (f == NULL) goto out;
748		now = time(NULL);
749
750	<	line_ptr = f_read_line(f, "disk_io:");
750	>	line_ptr = sg_f_read_line(f, "disk_io:");
751		if (line_ptr == NULL) goto out;
752
753		while((line_ptr=strchr(line_ptr, ' '))!=NULL){
#	Line 720 | Line 811 | out:
811		#endif
812
813		#ifdef CYGWIN
814	+	sg_set_error(SG_ERROR_UNSUPPORTED, "Cygwin");
815		return NULL;
816		#endif
817
#	Line 728 | Line 820 | out:
820		return diskio_stats;
821		}
822
823	<	diskio_stat_t *get_diskio_stats_diff(int *entries){
824	<	static diskio_stat_t *diff = NULL;
825	<	static int diff_count = 0;
826	<	diskio_stat_t *src, *dest;
827	<	int i, j, new_count;
823	>	sg_disk_io_stats *sg_get_disk_io_stats_diff(int *entries){
824	>	VECTOR_DECLARE_STATIC(diff, sg_disk_io_stats, 1,
825	>	diskio_stat_init, diskio_stat_destroy);
826	>	sg_disk_io_stats *src = NULL, *dest;
827	>	int i, j, diff_count, new_count;
828
829		if (diskio_stats == NULL) {
830		/* No previous stats, so we can't calculate a difference. */
831	<	return get_diskio_stats(entries);
831	>	return sg_get_disk_io_stats(entries);
832		}
833
834		/* Resize the results array to match the previous stats. */
835	<	diff = diskio_stat_malloc(num_diskio, &diff_count, diff);
836	<	if (diff == NULL) {
835	>	diff_count = VECTOR_SIZE(diskio_stats);
836	>	if (VECTOR_RESIZE(diff, diff_count) < 0) {
837		return NULL;
838		}
839
#	Line 750 | Line 842 | diskio_stat_t *get_diskio_stats_diff(int *entries){
842		src = &diskio_stats[i];
843		dest = &diff[i];
844
845	<	if (dest->disk_name != NULL) {
846	<	free(dest->disk_name);
845	>	if (sg_update_string(&dest->disk_name, src->disk_name) < 0) {
846	>	return NULL;
847		}
756	–	dest->disk_name = strdup(src->disk_name);
848		dest->read_bytes = src->read_bytes;
849		dest->write_bytes = src->write_bytes;
850		dest->systime = src->systime;
851		}
852
853		/* Get a new set of stats. */
854	<	if (get_diskio_stats(&new_count) == NULL) {
854	>	if (sg_get_disk_io_stats(&new_count) == NULL) {
855		return NULL;
856		}
857
#	Line 791 | Line 882 | diskio_stat_t *get_diskio_stats_diff(int *entries){
882
883		*entries = diff_count;
884		return diff;
885	+	}
886	+
887	+	int sg_disk_io_compare_name(const void *va, const void *vb) {
888	+	const sg_disk_io_stats *a = (const sg_disk_io_stats *)va;
889	+	const sg_disk_io_stats *b = (const sg_disk_io_stats *)vb;
890	+
891	+	return strcmp(a->disk_name, b->disk_name);
892		}
893

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