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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 1.64 by ats, Wed Apr 7 10:33:50 2004 UTC vs.
Revision 1.81 by ats, Wed Apr 13 11:50:31 2005 UTC

#	Line 37 | Line 37
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)
#	Line 47 | Line 47
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 66 | 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", "nfs"}
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", "nfs"}
77		#endif
78
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		static void disk_stat_init(sg_fs_stats *d) {
94		d->device_name = NULL;
95		d->fs_type = NULL;
#	Line 92 | Line 106 | 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 102 | Line 116 | static int is_valid_fs_type(const char *type) {
116
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);
119	>	disk_stat_init, disk_stat_destroy);
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
#	Line 116 | Line 130 | sg_fs_stats *sg_get_fs_stats(int *entries){
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
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 149 | Line 173 | sg_fs_stats *sg_get_fs_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 184 | Line 209 | sg_fs_stats *sg_get_fs_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)
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		}
#	Line 216 | Line 241 | sg_fs_stats *sg_get_fs_stats(int *entries){
241		}
242
243		if (sg_update_string(&disk_ptr->fs_type, mp.mnt_fstype) < 0) {
244	<	return NULL;
245	<	}
244	>	return NULL;
245	>	}
246
247		if (sg_update_string(&disk_ptr->mnt_point, mp.mnt_mountp) < 0) {
248	<	return NULL;
249	<	}
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 238 | Line 263 | sg_fs_stats *sg_get_fs_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 250 | Line 275 | sg_fs_stats *sg_get_fs_stats(int *entries){
275
276		}
277
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	+	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	+	return strcmp(a->mnt_point, b->mnt_point);
290	+	}
291	+
292		static void diskio_stat_init(sg_disk_io_stats *d) {
293		d->disk_name = NULL;
294		}
#	Line 259 | Line 298 | static void diskio_stat_destroy(sg_disk_io_stats *d) {
298		}
299
300		VECTOR_DECLARE_STATIC(diskio_stats, sg_disk_io_stats, 10,
301	<	diskio_stat_init, diskio_stat_destroy);
301	>	diskio_stat_init, diskio_stat_destroy);
302
303		#ifdef LINUX
304		typedef struct {
#	Line 274 | Line 313 | sg_disk_io_stats *sg_get_disk_io_stats(int *entries){
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 288 | Line 338 | sg_disk_io_stats *sg_get_disk_io_stats(int *entries){
338		int i, n;
339		time_t now;
340		const char *format;
341	+	static regex_t not_part_re, part_re;
342	+	static int re_compiled = 0;
343		#endif
344		#if defined(FREEBSD) || defined(DFBSD)
345		static struct statinfo stats;
#	Line 321 | Line 373 | sg_disk_io_stats *sg_get_disk_io_stats(int *entries){
373
374		num_diskio=0;
375
376	+	#ifdef HPUX
377	+	while (1) {
378	+	num = pstat_getdisk(pstat_diskinfo, sizeof pstat_diskinfo[0],
379	+	DISK_BATCH, diskidx);
380	+	if (num == -1) {
381	+	sg_set_error_with_errno(SG_ERROR_PSTAT,
382	+	"pstat_getdisk");
383	+	return NULL;
384	+	} else if (num == 0) {
385	+	break;
386	+	}
387	+
388	+	for (i = 0; i < num; i++) {
389	+	struct pst_diskinfo *di = &pstat_diskinfo[i];
390	+
391	+	/* Skip "disabled" disks. */
392	+	if (di->psd_status == 0) {
393	+	continue;
394	+	}
395	+
396	+	/* We can't seperate the reads from the writes, we'll
397	+	* just give the same to each. (This value is in
398	+	* 64-byte chunks according to the pstat header file,
399	+	* and can wrap to be negative.)
400	+	*/
401	+	rbytes = wbytes = ((unsigned long) di->psd_dkwds) * 64LL;
402	+
403	+	/* Skip unused disks. */
404	+	if (rbytes == 0 && wbytes == 0) {
405	+	continue;
406	+	}
407	+
408	+	if (VECTOR_RESIZE(diskio_stats, num_diskio + 1) < 0) {
409	+	return NULL;
410	+	}
411	+
412	+	diskio_stats_ptr = diskio_stats + num_diskio;
413	+
414	+	diskio_stats_ptr->read_bytes = rbytes;
415	+	diskio_stats_ptr->write_bytes = wbytes;
416	+
417	+	diskio_stats_ptr->systime = time(NULL);
418	+
419	+	num_diskio++;
420	+
421	+	/* FIXME This should use a static cache, like the Linux
422	+	* code below. */
423	+	if (diskio_stats_ptr->disk_name == NULL) {
424	+	dh = opendir("/dev/dsk");
425	+	if (dh == NULL) {
426	+	continue;
427	+	}
428	+
429	+	diskid = (di->psd_dev.psd_major << 24) | di->psd_dev.psd_minor;
430	+	while (1) {
431	+	dinfo = readdir(dh);
432	+	if (dinfo == NULL) {
433	+	break;
434	+	}
435	+	snprintf(fullpathbuf, sizeof(fullpathbuf), "/dev/dsk/%s", dinfo->d_name);
436	+	if (lstat(fullpathbuf, &lstatinfo) < 0) {
437	+	continue;
438	+	}
439	+
440	+	if (lstatinfo.st_rdev == diskid) {
441	+	if (sg_update_string(&diskio_stats_ptr->disk_name, dinfo->d_name) < 0) {
442	+	return NULL;
443	+	}
444	+	break;
445	+	}
446	+	}
447	+	closedir(dh);
448	+
449	+	if (diskio_stats_ptr->disk_name == NULL) {
450	+	if (sg_update_string(&diskio_stats_ptr->disk_name, di->psd_hw_path.psh_name) < 0) {
451	+	return NULL;
452	+	}
453	+	}
454	+	}
455	+	}
456	+	diskidx = pstat_diskinfo[num - 1].psd_idx + 1;
457	+	}
458	+	#endif
459		#ifdef OPENBSD
460		mib[0] = CTL_HW;
461		mib[1] = HW_DISKCOUNT;
462
463		size = sizeof(diskcount);
464		if (sysctl(mib, MIBSIZE, &diskcount, &size, NULL, 0) < 0) {
465	+	sg_set_error_with_errno(SG_ERROR_SYSCTL, "CTL_HW.HW_DISKCOUNT");
466		return NULL;
467		}
468
#	Line 334 | Line 470 | sg_disk_io_stats *sg_get_disk_io_stats(int *entries){
470		mib[1] = HW_DISKNAMES;
471
472		if (sysctl(mib, MIBSIZE, NULL, &size, NULL, 0) < 0) {
473	+	sg_set_error_with_errno(SG_ERROR_SYSCTL, "CTL_HW.HW_DISKNAMES");
474		return NULL;
475		}
476
#	Line 343 | Line 480 | sg_disk_io_stats *sg_get_disk_io_stats(int *entries){
480		}
481
482		if (sysctl(mib, MIBSIZE, disknames, &size, NULL, 0) < 0) {
483	+	sg_set_error_with_errno(SG_ERROR_SYSCTL, "CTL_HW.HW_DISKNAMES");
484		return NULL;
485		}
486
#	Line 361 | Line 499 | sg_disk_io_stats *sg_get_disk_io_stats(int *entries){
499		#endif
500
501		if (sysctl(mib, MIBSIZE, NULL, &size, NULL, 0) < 0) {
502	+	sg_set_error_with_errno(SG_ERROR_SYSCTL, "CTL_HW.HW_DISKSTATS");
503		return NULL;
504		}
505
#	Line 376 | Line 515 | sg_disk_io_stats *sg_get_disk_io_stats(int *entries){
515		}
516
517		if (sysctl(mib, MIBSIZE, stats, &size, NULL, 0) < 0) {
518	+	sg_set_error_with_errno(SG_ERROR_SYSCTL, "CTL_HW.HW_DISKSTATS");
519		return NULL;
520		}
521
#	Line 388 | Line 528 | sg_disk_io_stats *sg_get_disk_io_stats(int *entries){
528		rbytes = stats[i].dk_rbytes;
529		wbytes = stats[i].dk_wbytes;
530		#else
531	<	/* Before 1.7, NetBSD merged reads and writes. */
531	>	/* Before 2.0, NetBSD merged reads and writes. */
532		rbytes = wbytes = stats[i].dk_bytes;
533		#endif
534		#else
535	+	#ifdef HAVE_DS_RBYTES
536	+	rbytes = stats[i].ds_rbytes;
537	+	wbytes = stats[i].ds_wbytes;
538	+	#else
539	+	/* Before 3.5, OpenBSD merged reads and writes */
540		rbytes = wbytes = stats[i].ds_bytes;
541		#endif
542	+	#endif
543
544		/* Don't keep stats for disks that have never been used. */
545		if (rbytes == 0 && wbytes == 0) {
#	Line 435 | Line 581 | sg_disk_io_stats *sg_get_disk_io_stats(int *entries){
581		stats_init = 1;
582		}
583		#ifdef FREEBSD5
584	<	if ((devstat_getdevs(NULL, &stats)) < 0) return NULL;
584	>	if ((devstat_getdevs(NULL, &stats)) < 0) {
585	>	/* FIXME devstat functions return a string error in
586	>	devstat_errbuf */
587	>	sg_set_error(SG_ERROR_DEVSTAT_GETDEVS, NULL);
588	>	return NULL;
589	>	}
590		/* Not aware of a get all devices, so i said 999. If we ever
591		* find a machine with more than 999 disks, then i'll change
592		* this number :)
593		*/
594	<	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;
594	>	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) {
595	>	sg_set_error(SG_ERROR_DEVSTAT_SELECTDEVS, NULL);
596	>	return NULL;
597	>	}
598		#else
599	<	if ((getdevs(&stats)) < 0) return NULL;
599	>	if ((getdevs(&stats)) < 0) {
600	>	sg_set_error(SG_ERROR_DEVSTAT_GETDEVS, NULL);
601	>	return NULL;
602	>	}
603		/* Not aware of a get all devices, so i said 999. If we ever
604		* find a machine with more than 999 disks, then i'll change
605		* this number :)
606		*/
607	<	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;
607	>	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) {
608	>	sg_set_error(SG_ERROR_DEVSTAT_SELECTDEVS, NULL);
609	>	return NULL;
610	>	}
611		#endif
612
613		for(counter=0;counter<stats.dinfo->numdevs;counter++){
#	Line 477 | Line 637 | sg_disk_io_stats *sg_get_disk_io_stats(int *entries){
637		#endif
638		if(diskio_stats_ptr->disk_name!=NULL) free(diskio_stats_ptr->disk_name);
639		if (asprintf((&diskio_stats_ptr->disk_name), "%s%d", dev_ptr->device_name, dev_ptr->unit_number) == -1) {
640	+	sg_set_error_with_errno(SG_ERROR_ASPRINTF, NULL);
641		return NULL;
642		}
643		diskio_stats_ptr->systime=time(NULL);
#	Line 488 | Line 649 | sg_disk_io_stats *sg_get_disk_io_stats(int *entries){
649		#endif
650		#ifdef SOLARIS
651		if ((kc = kstat_open()) == NULL) {
652	<	return NULL;
653	<	}
652	>	sg_set_error(SG_ERROR_KSTAT_OPEN, NULL);
653	>	return NULL;
654	>	}
655
656		for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
657	<	if (!strcmp(ksp->ks_class, "disk")) {
657	>	if (!strcmp(ksp->ks_class, "disk")) {
658
659		if(ksp->ks_type != KSTAT_TYPE_IO) continue;
660		/* We dont want metadevices appearins as num_diskio */
661		if(strcmp(ksp->ks_module, "md")==0) continue;
662	<	if((kstat_read(kc, ksp, &kios))==-1){
662	>	if((kstat_read(kc, ksp, &kios))==-1){
663		}
664
665		if (VECTOR_RESIZE(diskio_stats, num_diskio + 1) < 0) {
#	Line 509 | Line 671 | sg_disk_io_stats *sg_get_disk_io_stats(int *entries){
671		diskio_stats_ptr->read_bytes=kios.nread;
672		diskio_stats_ptr->write_bytes=kios.nwritten;
673		if (sg_update_string(&diskio_stats_ptr->disk_name,
674	<	sg_get_svr_from_bsd(ksp->ks_name)) < 0) {
674	>	sg_get_svr_from_bsd(ksp->ks_name)) < 0) {
675		return NULL;
676		}
677		diskio_stats_ptr->systime=time(NULL);
#	Line 539 | Line 701 | sg_disk_io_stats *sg_get_disk_io_stats(int *entries){
701		if (f == NULL) goto out;
702		now = time(NULL);
703
704	+	if (!re_compiled) {
705	+	if (regcomp(&part_re, "^(.*/)?[^/]*[0-9]$", REG_EXTENDED | REG_NOSUB) != 0) {
706	+	sg_set_error(SG_ERROR_PARSE, NULL);
707	+	goto out;
708	+	}
709	+	if (regcomp(&not_part_re, "^(.*/)?[^/0-9]+[0-9]+d[0-9]+$", REG_EXTENDED | REG_NOSUB) != 0) {
710	+	sg_set_error(SG_ERROR_PARSE, NULL);
711	+	goto out;
712	+	}
713	+	re_compiled = 1;
714	+	}
715	+
716		while ((line_ptr = sg_f_read_line(f, "")) != NULL) {
717		char name[100];
544	–	char *s;
718		long long rsect, wsect;
719
720		int nr = sscanf(line_ptr, format,
#	Line 549 | Line 722 | sg_disk_io_stats *sg_get_disk_io_stats(int *entries){
722		if (nr < 3) continue;
723
724		/* Skip device names ending in numbers, since they're
725	<	partitions. */
726	<	s = name;
727	<	while (*s != '\0') s++;
728	<	--s;
729	<	if (*s >= '0' && *s <= '9') continue;
725	>	partitions, unless they match the c0d0 pattern that some
726	>	RAID devices use. */
727	>	/* FIXME: For 2.6+, we should probably be using sysfs to detect
728	>	this... */
729	>	if ((regexec(&part_re, name, 0, NULL, 0) == 0)
730	>	&& (regexec(&not_part_re, name, 0, NULL, 0) != 0)) {
731	>	continue;
732	>	}
733
734		if (nr < 5) {
735		has_pp_stats = 0;
#	Line 656 | Line 832 | out:
832		#endif
833
834		#ifdef CYGWIN
835	+	sg_set_error(SG_ERROR_UNSUPPORTED, "Cygwin");
836		return NULL;
837		#endif
838
#	Line 666 | Line 843 | out:
843
844		sg_disk_io_stats *sg_get_disk_io_stats_diff(int *entries){
845		VECTOR_DECLARE_STATIC(diff, sg_disk_io_stats, 1,
846	<	diskio_stat_init, diskio_stat_destroy);
846	>	diskio_stat_init, diskio_stat_destroy);
847		sg_disk_io_stats *src = NULL, *dest;
848		int i, j, diff_count, new_count;
849
#	Line 726 | Line 903 | sg_disk_io_stats *sg_get_disk_io_stats_diff(int *entri
903
904		*entries = diff_count;
905		return diff;
906	+	}
907	+
908	+	int sg_disk_io_compare_name(const void *va, const void *vb) {
909	+	const sg_disk_io_stats *a = (const sg_disk_io_stats *)va;
910	+	const sg_disk_io_stats *b = (const sg_disk_io_stats *)vb;
911	+
912	+	return strcmp(a->disk_name, b->disk_name);
913		}
914

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