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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 1.22 by pajs, Fri Sep 26 16:33:51 2003 UTC vs.
Revision 1.34 by ats, Sun Oct 19 12:04:05 2003 UTC

#	Line 31 | Line 31
31		#include <sys/mnttab.h>
32		#include <sys/statvfs.h>
33		#include <kstat.h>
34	–	#include <sys/types.h>
35	–	#include <dirent.h>
36	–	#include <limits.h>
37	–	#include <unistd.h>
34		#define VALID_FS_TYPES {"ufs", "tmpfs"}
35		#endif
36
37		#ifdef LINUX
38	+	#include <time.h>
39		#include <sys/vfs.h>
40		#include <mntent.h>
41		#include "tools.h"
42	<	#define VALID_FS_TYPES {"ext2", "ext3", "xfs", "reiserfs", "vfat", "tmpfs"}
42	>	#define VALID_FS_TYPES {"adfs", "affs", "befs", "bfs", "efs", "ext2", \
43	>	"ext3", "vxfs", "hfs", "hfsplus", "hpfs", "jffs", \
44	>	"jffs2", "minix", "msdos", "ntfs", "qnx4", "ramfs", \
45	>	"rootfs", "reiserfs", "sysv", "v7", "udf", "ufs", \
46	>	"umsdos", "vfat", "xfs", "jfs"}
47		#endif
48
49	<	#ifdef FREEBSD
49	>	#ifdef ALLBSD
50		#include <sys/param.h>
51		#include <sys/ucred.h>
52		#include <sys/mount.h>
53	+	#define VALID_FS_TYPES {"ufs", "mfs", "ffs"}
54	+	#endif
55	+	#ifdef FREEBSD
56		#include <sys/dkstat.h>
57		#include <devstat.h>
54	–	#define VALID_FS_TYPES {"ufs", "mfs"}
58		#endif
59	<	#define START_VAL 1
60	<
61	<	/* Solaris kernel stores the disk names in the old BSD format
62	<	* and we would prefer it in th modern format.
60	<	*/
61	<	#ifdef SOLARIS
62	<	/* Lines from the path_to_inst file */
63	<	typedef struct {
64	<	/* unlikely to get a line that long */
65	<	char line[256];
66	<	}file_line_t;
67	<
68	<	/* Linked list of the mappings from the older bsd-based sunos names
69	<	* to the modern solaris names
70	<	*/
71	<	struct disk_mapping_ent_t{
72	<	char *sunos_name;
73	<	char *solaris_name;
74	<	struct disk_mapping_ent_t *next;
75	<	};
76	<	typedef struct disk_mapping_ent_t disk_mapping_t;
59	>	#ifdef NETBSD
60	>	#include <sys/param.h>
61	>	#include <sys/sysctl.h>
62	>	#include <sys/disk.h>
63		#endif
64
65	+	#define START_VAL 1
66	+
67		char *copy_string(char *orig_ptr, const char *newtext){
68
69		/* Maybe free if not NULL, and strdup rather than realloc and strcpy? */
#	Line 122 | Line 110 | disk_stat_t *get_disk_stats(int *entries){
110		struct mntent *mp;
111		struct statfs fs;
112		#endif
113	<	#ifdef FREEBSD
113	>	#ifdef ALLBSD
114		int nummnt;
115		struct statfs *mp;
116		#endif
#	Line 135 | Line 123 | disk_stat_t *get_disk_stats(int *entries){
123		watermark=START_VAL;
124		init_disk_stat(0, watermark-1, disk_stats);
125		}
126	<	#ifdef FREEBSD
126	>	#ifdef ALLBSD
127		nummnt=getmntinfo(&mp , MNT_LOCAL);
128		if (nummnt<=0){
129		return NULL;
#	Line 199 | Line 187 | disk_stat_t *get_disk_stats(int *entries){
187		}
188
189		disk_ptr=disk_stats+num_disks;
190	<	#ifdef FREEBSD
190	>	#ifdef ALLBSD
191		if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp->f_mntfromname))==NULL){
192		return NULL;
193		}
#	Line 292 | Line 280 | void diskio_stat_init(int start, int end, diskio_stat_
280		}
281		}
282
295	–	#ifdef SOLARIS
296	–	char *drive_map(char *sunos_name){
297	–	file_line_t *file_lines = NULL;
298	–	file_line_t *f_ptr;
299	–	static disk_mapping_t *disk_mapping = NULL;
300	–	disk_mapping_t *d_ptr;
301	–	int x = 0;
302	–	int y = 256;
303	–	FILE *f;
304	–	DIR *dsk;
305	–	struct dirent *dsk_ent;
306	–	char linkpointer[PATH_MAX];
307	–	char link_path[PATH_MAX];
308	–	char *p, *r, *q;
309	–
310	–	int dev_num;
311	–	char dev_name[51];
312	–
313	–	if(disk_mapping == NULL){
314	–	/* Read in the path_to_inst file into memory */
315	–	file_lines = malloc(sizeof(file_line_t) * y);
316	–	f_ptr = file_lines;
317	–	if(file_lines == NULL) return NULL;
318	–	f = fopen("/etc/path_to_inst", "r");
319	–	if (f == NULL){
320	–	free(file_lines);
321	–	return NULL;
322	–	}
323	–	for(x=0;fgets(f_ptr->line, sizeof(f_ptr->line), f);x++){
324	–	if ((x+1) >= y){
325	–	y = y*2;
326	–	file_lines = realloc(file_lines, sizeof(file_line_t) * y);
327	–	if (file_lines == NULL) return NULL;
328	–	}
329	–	f_ptr++;
330	–	}
331	–	f_ptr = NULL;
332	–	fclose(f);
333	–
334	–	dsk = opendir("/dev/dsk");
335	–	if (dsk == NULL){
336	–	free(file_lines);
337	–	return NULL;
338	–	}
339	–
340	–	while((dsk_ent = readdir(dsk)) != NULL){
341	–	snprintf(link_path, sizeof(link_path), "/dev/dsk/%s", dsk_ent->d_name);
342	–	/* Ignore the non symlinks, e.g. ".." and "." */
343	–	if((readlink(link_path, linkpointer, PATH_MAX)) == -1) continue;
344	–	/* We are only intrested in the string past the ../../devices/ part */
345	–	p = strstr(linkpointer, "devices");
346	–	p+=8;
347	–
348	–	/* We are not intrested in the :a etc slices */
349	–	q = strrchr(p, ':');
350	–	*q = '\0';
351	–
352	–	/* char *p should not contain the info we need to look up in the
353	–	* path_to_inst file.
354	–	*/
355	–
356	–	for(f_ptr = file_lines; f_ptr != NULL; f_ptr++){
357	–	r = strstr(f_ptr->line, p);
358	–	if (r != NULL) break;
359	–	}
360	–
361	–	if(r == NULL){
362	–	free(file_lines);
363	–	closedir(dsk);
364	–	return NULL;
365	–	}
366	–
367	–	/* f_ptr should be pointing to the line of path_to_inst we are intrested in now */
368	–
369	–	sscanf(r, "%*s %d \"%50s", &dev_num, dev_name);
370	–	q = strrchr(dev_name, '"');
371	–	if (q == NULL){
372	–	free(file_lines);
373	–	closedir(dsk);
374	–	return NULL;
375	–	}
376	–	*q = '\0';
377	–
378	–	/* Nasty... Add the number to the end of the string.. This means
379	–	* dev_name now contains the sunos name.. E.g. ssd1
380	–	*/
381	–	snprintf(dev_name, 50, "%s%d", dev_name, dev_num);
382	–	if (disk_mapping == NULL){
383	–	disk_mapping = malloc(sizeof(disk_mapping_t));
384	–	d_ptr = disk_mapping;
385	–	}else{
386	–	d_ptr->next = malloc(sizeof(disk_mapping_t));
387	–	d_ptr = d_ptr->next;
388	–	}
389	–
390	–	if (d_ptr == NULL){
391	–	free(file_lines);
392	–	closedir(dsk);
393	–	return NULL;
394	–	}
395	–
396	–	if( ((d_ptr->sunos_name = strdup(dev_name)) == NULL) ||
397	–	((d_ptr->solaris_name = strdup(dsk_ent->d_name))==NULL) ){
398	–	free(file_lines);
399	–	closedir(dsk);
400	–	return NULL;
401	–	}
402	–	}
403	–	free(file_lines);
404	–	closedir(dsk);
405	–	}
406	–
407	–	for(d_ptr = disk_mapping; d_ptr !=NULL; d_ptr=d_ptr->next){
408	–	if(!strcmp(sunos_name, d_ptr->sunos_name)){
409	–	return (strdup(d_ptr->solaris_name));
410	–	}
411	–	}
412	–
413	–	/* If we really fail to find it.. Return the original name back */
414	–	return strdup(sunos_name);
415	–	}
416	–
417	–	#endif
418	–
283		diskio_stat_t *diskio_stat_malloc(int needed_entries, int *cur_entries, diskio_stat_t *diskio_stats){
284
285		if(diskio_stats==NULL){
#	Line 482 | Line 346 | diskio_stat_t *get_diskio_stats(int *entries){
346		long sel_gen;
347		struct devstat *dev_ptr;
348		#endif
349	+	#ifdef NETBSD
350	+	struct disk_sysctl *stats;
351	+	int num_disks, i;
352	+	int mib[3];
353	+	size_t size;
354	+	#endif
355	+
356		num_diskio=0;
357
358	+	#ifdef NETBSD
359	+	mib[0] = CTL_HW;
360	+	mib[1] = HW_DISKSTATS;
361	+	mib[2] = sizeof(struct disk_sysctl);
362	+
363	+	if (sysctl(mib, 3, NULL, &size, NULL, 0) < 0) {
364	+	return NULL;
365	+	}
366	+	num_disks = size / sizeof(struct disk_sysctl);
367	+
368	+	stats = malloc(size);
369	+	if (stats == NULL) {
370	+	return NULL;
371	+	}
372	+
373	+	if (sysctl(mib, 3, stats, &size, NULL, 0) < 0) {
374	+	return NULL;
375	+	}
376	+
377	+	for (i = 0; i < num_disks; i++) {
378	+	u_int64_t rbytes, wbytes;
379	+
380	+	#ifdef HAVE_DK_RBYTES
381	+	rbytes = stats[i].dk_rbytes;
382	+	wbytes = stats[i].dk_wbytes;
383	+	#else
384	+	/* Before 1.6.1, NetBSD merged reads and writes. */
385	+	rbytes = wbytes = stats[i].dk_bytes;
386	+	#endif
387	+
388	+	/* Don't keep stats for disks that have never been used. */
389	+	if (rbytes == 0 && wbytes == 0) {
390	+	continue;
391	+	}
392	+
393	+	diskio_stats = diskio_stat_malloc(num_diskio + 1,
394	+	&sizeof_diskio_stats,
395	+	diskio_stats);
396	+	if (diskio_stats == NULL) {
397	+	return NULL;
398	+	}
399	+	diskio_stats_ptr = diskio_stats + num_diskio;
400	+
401	+	diskio_stats_ptr->read_bytes = rbytes;
402	+	diskio_stats_ptr->write_bytes = wbytes;
403	+	if (diskio_stats_ptr->disk_name != NULL) {
404	+	free(diskio_stats_ptr->disk_name);
405	+	}
406	+	diskio_stats_ptr->disk_name = strdup(stats[i].dk_name);
407	+	diskio_stats_ptr->systime = time(NULL);
408	+
409	+	num_diskio++;
410	+	}
411	+
412	+	free(stats);
413	+	#endif
414	+
415		#ifdef FREEBSD
416		if (!stats_init) {
417		stats.dinfo=malloc(sizeof(struct devinfo));
418		if(stats.dinfo==NULL) return NULL;
419	+	bzero(stats.dinfo, sizeof(struct devinfo));
420		stats_init = 1;
421		}
422	+	#ifdef FREEBSD5
423	+	if ((devstat_getdevs(NULL, &stats)) < 0) return NULL;
424	+	/* Not aware of a get all devices, so i said 999. If we ever
425	+	* find a machine with more than 999 disks, then i'll change
426	+	* this number :)
427	+	*/
428	+	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;
429	+	#else
430		if ((getdevs(&stats)) < 0) return NULL;
431		/* Not aware of a get all devices, so i said 999. If we ever
432		* find a machine with more than 999 disks, then i'll change
433		* this number :)
434		*/
435		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;
436	+	#endif
437
438		for(counter=0;counter<stats.dinfo->numdevs;counter++){
439		dev_ptr=&stats.dinfo->devices[dev_sel[counter].position];
#	Line 504 | Line 442 | diskio_stat_t *get_diskio_stats(int *entries){
442		* devices.. like mem, proc.. and also doesn't report floppy
443		* drives etc unless they are doing stuff :)
444		*/
445	+	#ifdef FREEBSD5
446	+	if((dev_ptr->bytes[DEVSTAT_READ]==0) && (dev_ptr->bytes[DEVSTAT_WRITE]==0)) continue;
447	+	#else
448		if((dev_ptr->bytes_read==0) && (dev_ptr->bytes_written==0)) continue;
449	+	#endif
450		if((diskio_stats=diskio_stat_malloc(num_diskio+1, &sizeof_diskio_stats, diskio_stats))==NULL){
451		return NULL;
452		}
453		diskio_stats_ptr=diskio_stats+num_diskio;
454	<
454	>
455	>	#ifdef FREEBSD5
456	>	diskio_stats_ptr->read_bytes=dev_ptr->bytes[DEVSTAT_READ];
457	>	diskio_stats_ptr->write_bytes=dev_ptr->bytes[DEVSTAT_WRITE];
458	>	#else
459		diskio_stats_ptr->read_bytes=dev_ptr->bytes_read;
460		diskio_stats_ptr->write_bytes=dev_ptr->bytes_written;
461	+	#endif
462		if(diskio_stats_ptr->disk_name!=NULL) free(diskio_stats_ptr->disk_name);
463		asprintf((&diskio_stats_ptr->disk_name), "%s%d", dev_ptr->device_name, dev_ptr->unit_number);
464		diskio_stats_ptr->systime=time(NULL);
#	Line 519 | Line 466 | diskio_stat_t *get_diskio_stats(int *entries){
466		num_diskio++;
467		}
468		free(dev_sel);
522	–	free(stats.dinfo);
469
470		#endif
471		#ifdef SOLARIS
#	Line 548 | Line 494 | diskio_stat_t *get_diskio_stats(int *entries){
494
495		if(diskio_stats_ptr->disk_name!=NULL) free(diskio_stats_ptr->disk_name);
496
497	<	diskio_stats_ptr->disk_name=drive_map(ksp->ks_name);
497	>	diskio_stats_ptr->disk_name=strdup(ksp->ks_name);
498		diskio_stats_ptr->systime=time(NULL);
499		num_diskio++;
500		}

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