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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 1.4 by pajs, Sun Feb 23 19:24:07 2003 UTC vs.
Revision 1.10 by pajs, Tue Mar 4 18:06:16 2003 UTC

#	Line 22 | Line 22
22		#include "config.h"
23		#endif
24
25	–	#include "statgrab.h"
25		#include <stdlib.h>
27	–	#include <stdio.h>
28	–	#include "ukcprog.h"
26		#include <string.h>
27	+	#include "statgrab.h"
28
29		#ifdef SOLARIS
30	+	#include <stdio.h>
31		#include <sys/mnttab.h>
33	–	#include <sys/types.h>
32		#include <sys/statvfs.h>
33		#include <kstat.h>
36	–
34		#define VALID_FS_TYPES {"ufs", "tmpfs"}
35	+	#endif
36
37	+	#ifdef LINUX
38	+	#include <stdio.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"}
43		#endif
44
45		#define START_VAL 1
#	Line 71 | Line 75 | disk_stat_t *get_disk_stats(int *entries){
75
76		char *fs_types[] = VALID_FS_TYPES;
77		int x, valid_type;
74	–
78		int num_disks=0;
76	–	struct mnttab mp;
77	–	struct statvfs fs;
79		FILE *f;
80
81		disk_stat_t *disk_ptr;
82
83	+	#ifdef SOLARIS
84	+	struct mnttab *mp;
85	+	struct statvfs fs;
86	+	#endif
87	+	#ifdef LINUX
88	+	struct mntent *mp;
89	+	struct statfs fs;
90	+	#endif
91	+
92		if(watermark==-1){
93		disk_stats=malloc(START_VAL * sizeof(disk_stat_t));
94		if(disk_stats==NULL){
#	Line 87 | Line 97 | disk_stat_t *get_disk_stats(int *entries){
97		watermark=START_VAL;
98		init_disk_stat(0, watermark-1, disk_stats);
99		}
100	+	#ifdef LINUX
101	+	if ((f=setmntent("/etc/mtab", "r" ))==NULL){
102	+	return NULL;
103	+	}
104
105	+	while((mp=getmntent(f))){
106	+	if((statfs(mp->mnt_dir, &fs)) !=0){
107	+	continue;
108	+	}
109
110	+	valid_type=0;
111	+	for(x=0;x<((sizeof(fs_types))/(sizeof(char*)));x++){
112	+	if(strcmp(mp->mnt_type, fs_types[x]) ==0){
113	+	valid_type=1;
114	+	break;
115	+	}
116	+	}
117	+	#endif
118	+
119	+	#ifdef SOLARIS
120		if ((f=fopen("/etc/mnttab", "r" ))==NULL){
121		return NULL;
122		}
#	Line 96 | Line 124 | disk_stat_t *get_disk_stats(int *entries){
124		if ((statvfs(mp.mnt_mountp, &fs)) !=0){
125		continue;
126		}
99	–
127		valid_type=0;
128		for(x=0;x<((sizeof(fs_types))/(sizeof(char*)));x++){
129		if(strcmp(mp.mnt_fstype, fs_types[x]) ==0){
#	Line 104 | Line 131 | disk_stat_t *get_disk_stats(int *entries){
131		break;
132		}
133		}
134	+	#endif
135
136		if(valid_type){
137		if(num_disks>watermark-1){
#	Line 118 | Line 146 | disk_stat_t *get_disk_stats(int *entries){
146		}
147
148		disk_ptr=disk_stats+num_disks;
149	<
149	>	#ifdef LINUX
150	>	if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp->mnt_fsname))==NULL){
151	>	return NULL;
152	>	}
153	>
154	>	if((disk_ptr->fs_type=copy_string(disk_ptr->fs_type, mp->mnt_type))==NULL){
155	>	return NULL;
156	>	}
157	>
158	>	if((disk_ptr->mnt_point=copy_string(disk_ptr->mnt_point, mp->mnt_dir))==NULL){
159	>	return NULL;
160	>	}
161	>	disk_ptr->size = (long long)fs.f_bsize * (long long)fs.f_blocks;
162	>	disk_ptr->avail = (long long)fs.f_bsize * (long long)fs.f_bavail;
163	>	disk_ptr->used = (disk_ptr->size) - ((long long)fs.f_bsize * (long long)fs.f_bfree);
164	>
165	>	disk_ptr->total_inodes=(long long)fs.f_files;
166	>	disk_ptr->free_inodes=(long long)fs.f_ffree;
167	>	/* Linux doesn't have a "available" inodes */
168	>	disk_ptr->used_inodes=disk_ptr->total_inodes-disk_ptr->free_inodes;
169	>	#endif
170	>
171	>	#ifdef SOLARIS
172		/* Memory leak in event of realloc failing */
173		/* Maybe make this char[bigenough] and do strncpy's and put a null in the end?
174	<	Downside is its a bit hungry for a lot of mounts, as MNT_MAX_SIZE woul prob be upwards
175	<	of a k each */
174	>	* Downside is its a bit hungry for a lot of mounts, as MNT_MAX_SIZE would prob
175	>	* be upwards of a k each
176	>	*/
177		if((disk_ptr->device_name=copy_string(disk_ptr->device_name, mp.mnt_special))==NULL){
178		return NULL;
179		}
#	Line 142 | Line 193 | disk_stat_t *get_disk_stats(int *entries){
193		disk_ptr->total_inodes=(long long)fs.f_files;
194		disk_ptr->used_inodes=disk_ptr->total_inodes - (long long)fs.f_ffree;
195		disk_ptr->free_inodes=(long long)fs.f_favail;
196	<
196	>	#endif
197		num_disks++;
198		}
199		}
#	Line 155 | Line 206 | disk_stat_t *get_disk_stats(int *entries){
206		return disk_stats;
207
208		}
158	–
209		void diskio_stat_init(int start, int end, diskio_stat_t *diskio_stats){
210
211		for(diskio_stats+=start; start<end; start++){
#	Line 192 | Line 242 | diskio_stat_t *diskio_stat_malloc(int needed_entries,
242		}
243
244		static diskio_stat_t *diskio_stats=NULL;
245	+	static int num_diskio=0;
246
247		diskio_stat_t *get_diskio_stats(int *entries){
248
249		static int sizeof_diskio_stats=0;
199	–	int disks=0;
250		diskio_stat_t *diskio_stats_ptr;
251
252	+	#ifdef SOLARIS
253		kstat_ctl_t *kc;
254		kstat_t *ksp;
255		kstat_io_t kios;
256	+	#endif
257	+	#ifdef LINUX
258	+	FILE *f;
259	+	char *line_ptr;
260	+	int major, minor;
261	+	char dev_letter;
262	+	#endif
263
264	+	num_diskio=0;
265	+
266	+	#ifdef SOLARIS
267		if ((kc = kstat_open()) == NULL) {
268		return NULL;
269		}
270
271		for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
211	–	fflush(stdout);
272		if (!strcmp(ksp->ks_class, "disk")) {
213	–	fflush(stdout);
273
274		if(ksp->ks_type != KSTAT_TYPE_IO) continue;
275	<	/* We dont want metadevices appearins as disks */
275	>	/* We dont want metadevices appearins as num_diskio */
276		if(strcmp(ksp->ks_module, "md")==0) continue;
277		if((kstat_read(kc, ksp, &kios))==-1){
219	–	fflush(stdout);
278		}
279
280	<	if((diskio_stats=diskio_stat_malloc(disks+1, &sizeof_diskio_stats, diskio_stats))==NULL){
280	>	if((diskio_stats=diskio_stat_malloc(num_diskio+1, &sizeof_diskio_stats, diskio_stats))==NULL){
281		kstat_close(kc);
282		return NULL;
283		}
284	<	diskio_stats_ptr=diskio_stats+disks;
284	>	diskio_stats_ptr=diskio_stats+num_diskio;
285
286		diskio_stats_ptr->read_bytes=kios.nread;
287
#	Line 232 | Line 290 | diskio_stat_t *get_diskio_stats(int *entries){
290		if(diskio_stats_ptr->disk_name!=NULL) free(diskio_stats_ptr->disk_name);
291
292		diskio_stats_ptr->disk_name=strdup(ksp->ks_name);
293	<	disks++;
236	<	fflush(stdout);
293	>	num_diskio++;
294		}
295		}
296
297		kstat_close(kc);
298	+	#endif
299
300	<	*entries=disks;
300	>	#ifdef LINUX
301	>	f=fopen("/proc/stat", "r");
302	>	if(f==NULL){
303	>	return NULL;
304	>	}
305	>	if((line_ptr=f_read_line(f, "disk_io:"))==NULL){
306	>	return NULL;
307	>	}
308	>	while((line_ptr=strchr(line_ptr, ' '))!=NULL){
309	>	if((diskio_stats=diskio_stat_malloc(num_diskio+1, &sizeof_diskio_stats, diskio_stats))==NULL){
310	>	fclose(f);
311	>	return NULL;
312	>	}
313	>	diskio_stats_ptr=diskio_stats+num_diskio;
314
315	+
316	+	sscanf(line_ptr, "(%d,%d):(%*d, %lld, %*d, %lld, %*d)", \
317	+	&major, \
318	+	&minor, \
319	+	&diskio_stats_ptr->read_bytes, \
320	+	&diskio_stats_ptr->write_bytes);
321	+
322	+	if(diskio_stats_ptr->disk_name!=NULL) free(diskio_stats_ptr->disk_name);
323	+
324	+	switch(major){
325	+	case 3:
326	+	if(minor==0){
327	+	diskio_stats_ptr->disk_name=strdup("hda");
328	+	}else{
329	+	diskio_stats_ptr->disk_name=strdup("hdb");
330	+	}
331	+	break;
332	+
333	+	case 22:
334	+	if(minor==0){
335	+	diskio_stats_ptr->disk_name=strdup("hdc");
336	+	}else{
337	+	diskio_stats_ptr->disk_name=strdup("hdd");
338	+	}
339	+	case 8:
340	+	dev_letter='a'+(minor/16);
341	+	diskio_stats_ptr->disk_name=malloc(4);
342	+	snprintf(diskio_stats_ptr->disk_name, 4, "sd%c", dev_letter);
343	+	default:
344	+	/* I have no idea what it is then :) */
345	+	diskio_stats_ptr->disk_name=malloc(16);
346	+	snprintf(diskio_stats_ptr->disk_name, 16, "%d %d", major, minor);
347	+	}
348	+
349	+	num_diskio++;
350	+	}
351	+
352	+	#endif
353	+	*entries=num_diskio;
354	+
355		return diskio_stats;
356	+	}
357	+
358	+	diskio_stat_t *get_diskio_stats_diff(int *entries){
359	+	static diskio_stat_t *diskio_stats_diff=NULL;
360	+	static int sizeof_diskio_stats_diff=0;
361	+	diskio_stat_t *diskio_stats_diff_ptr, *diskio_stats_ptr;
362	+	int disks, x, y;
363	+
364	+	if(diskio_stats==NULL){
365	+	diskio_stats_ptr=get_diskio_stats(&disks);
366	+	*entries=disks;
367	+	return diskio_stats_ptr;
368	+	}
369	+
370	+	diskio_stats_diff=diskio_stat_malloc(num_diskio, &sizeof_diskio_stats_diff, diskio_stats_diff);
371	+	if(diskio_stats_diff==NULL){
372	+	return NULL;
373	+	}
374	+
375	+	diskio_stats_diff_ptr=diskio_stats_diff;
376	+	diskio_stats_ptr=diskio_stats;
377	+
378	+	for(disks=0;disks<num_diskio;disks++){
379	+	if(diskio_stats_diff_ptr->disk_name!=NULL){
380	+	free(diskio_stats_diff_ptr->disk_name);
381	+	}
382	+	diskio_stats_diff_ptr->disk_name=strdup(diskio_stats_ptr->disk_name);
383	+	diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes;
384	+	diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes;
385	+	diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime;
386	+
387	+	diskio_stats_diff_ptr++;
388	+	diskio_stats_ptr++;
389	+	}
390	+
391	+	diskio_stats_ptr=get_diskio_stats(&disks);
392	+	diskio_stats_diff_ptr=diskio_stats_diff;
393	+
394	+	for(x=0;x<sizeof_diskio_stats_diff;x++){
395	+
396	+	if((strcmp(diskio_stats_diff_ptr->disk_name, diskio_stats_ptr->disk_name))==0){
397	+	diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes-diskio_stats_diff_ptr->read_bytes;
398	+	diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes-diskio_stats_diff_ptr->write_bytes;
399	+	diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime-diskio_stats_diff_ptr->systime;
400	+	}else{
401	+	diskio_stats_ptr=diskio_stats;
402	+	for(y=0;y<disks;y++){
403	+	if((strcmp(diskio_stats_diff_ptr->disk_name, diskio_stats_ptr->disk_name))==0){
404	+	diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes-diskio_stats_diff_ptr->read_bytes;
405	+	diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes-diskio_stats_diff_ptr->write_bytes;
406	+	diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime-diskio_stats_diff_ptr->systime;
407	+
408	+	break;
409	+	}
410	+
411	+	diskio_stats_ptr++;
412	+	}
413	+	}
414	+
415	+	diskio_stats_ptr++;
416	+	diskio_stats_diff_ptr++;
417	+
418	+	}
419	+
420	+	*entries=sizeof_diskio_stats_diff;
421	+	return diskio_stats_diff;
422		}

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