ViewVC Help

View File | Revision Log | Show Annotations | Revision Graph | Root Listing

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

Comparing projects/libstatgrab/src/libstatgrab/disk_stats.c (file contents):
Revision 1.1 by pajs, Tue Feb 18 19:28:30 2003 UTC vs.
Revision 1.13 by tdb, Fri Mar 7 20:17:07 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	<
33	>	#include <kstat.h>
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 61 | Line 66 | void init_disk_stat(int start, int end, disk_stat_t *d
66
67		disk_stats++;
68		}
64	–
69		}
70
71		disk_stat_t *get_disk_stats(int *entries){
#	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 154 | Line 205 | disk_stat_t *get_disk_stats(int *entries){
205
206		return disk_stats;
207
208	+	}
209	+	void diskio_stat_init(int start, int end, diskio_stat_t *diskio_stats){
210	+
211	+	for(diskio_stats+=start; start<end; start++){
212	+	diskio_stats->disk_name=NULL;
213	+
214	+	diskio_stats++;
215	+	}
216	+	}
217	+
218	+	diskio_stat_t *diskio_stat_malloc(int needed_entries, int *cur_entries, diskio_stat_t *diskio_stats){
219	+
220	+	if(diskio_stats==NULL){
221	+
222	+	if((diskio_stats=malloc(needed_entries * sizeof(diskio_stat_t)))==NULL){
223	+	return NULL;
224	+	}
225	+	diskio_stat_init(0, needed_entries, diskio_stats);
226	+	*cur_entries=needed_entries;
227	+
228	+	return diskio_stats;
229	+	}
230	+
231	+
232	+	if(*cur_entries<needed_entries){
233	+	diskio_stats=realloc(diskio_stats, (sizeof(diskio_stat_t)*needed_entries));
234	+	if(diskio_stats==NULL){
235	+	return NULL;
236	+	}
237	+	diskio_stat_init(*cur_entries, needed_entries, diskio_stats);
238	+	*cur_entries=needed_entries;
239	+	}
240	+
241	+	return diskio_stats;
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;
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	+	num_diskio=0;
264	+
265	+	#ifdef SOLARIS
266	+	if ((kc = kstat_open()) == NULL) {
267	+	return NULL;
268	+	}
269	+
270	+	for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
271	+	if (!strcmp(ksp->ks_class, "disk")) {
272	+
273	+	if(ksp->ks_type != KSTAT_TYPE_IO) continue;
274	+	/* We dont want metadevices appearins as num_diskio */
275	+	if(strcmp(ksp->ks_module, "md")==0) continue;
276	+	if((kstat_read(kc, ksp, &kios))==-1){
277	+	}
278	+
279	+	if((diskio_stats=diskio_stat_malloc(num_diskio+1, &sizeof_diskio_stats, diskio_stats))==NULL){
280	+	kstat_close(kc);
281	+	return NULL;
282	+	}
283	+	diskio_stats_ptr=diskio_stats+num_diskio;
284	+
285	+	diskio_stats_ptr->read_bytes=kios.nread;
286	+
287	+	diskio_stats_ptr->write_bytes=kios.nwritten;
288	+
289	+	if(diskio_stats_ptr->disk_name!=NULL) free(diskio_stats_ptr->disk_name);
290	+
291	+	diskio_stats_ptr->disk_name=strdup(ksp->ks_name);
292	+	num_diskio++;
293	+	}
294	+	}
295	+
296	+	kstat_close(kc);
297	+	#endif
298	+
299	+	#ifdef LINUX
300	+	f=fopen("/proc/stat", "r");
301	+	if(f==NULL){
302	+	*entries=0;
303	+	fclose(f);
304	+	return NULL;
305	+	}
306	+	if((line_ptr=f_read_line(f, "disk_io:"))==NULL){
307	+	*entries=0;
308	+	fclose(f);
309	+	return NULL;
310	+	}
311	+	while((line_ptr=strchr(line_ptr, ' '))!=NULL){
312	+	line_ptr++;
313	+	if(*line_ptr=='\0'){
314	+	break;
315	+	}
316	+	if((diskio_stats=diskio_stat_malloc(num_diskio+1, &sizeof_diskio_stats, diskio_stats))==NULL){
317	+	fclose(f);
318	+	*entries=0;
319	+	return NULL;
320	+	}
321	+	diskio_stats_ptr=diskio_stats+num_diskio;
322	+
323	+
324	+	if((sscanf(line_ptr, "(%d,%d):(%*d, %*d, %lld, %*d, %lld)", \
325	+	&major, \
326	+	&minor, \
327	+	&diskio_stats_ptr->read_bytes, \
328	+	&diskio_stats_ptr->write_bytes))!=4) {
329	+	continue;
330	+	}
331	+
332	+	/* We read the number of blocks. Blocks are stored in 512 bytes */
333	+	diskio_stats_ptr->read_bytes=diskio_stats_ptr->read_bytes*512;
334	+	diskio_stats_ptr->write_bytes=diskio_stats_ptr->write_bytes*512;
335	+
336	+	if(diskio_stats_ptr->disk_name!=NULL) free(diskio_stats_ptr->disk_name);
337	+
338	+	switch(major){
339	+	case 2:
340	+	if(minor==0){
341	+	diskio_stats_ptr->disk_name=strdup("fd0");
342	+	}
343	+	break;
344	+
345	+	case 3:
346	+	if(minor==0){
347	+	diskio_stats_ptr->disk_name=strdup("hda");
348	+	}else{
349	+	diskio_stats_ptr->disk_name=strdup("hdb");
350	+	}
351	+	break;
352	+
353	+	case 22:
354	+	if(minor==0){
355	+	diskio_stats_ptr->disk_name=strdup("hdc");
356	+	}else{
357	+	diskio_stats_ptr->disk_name=strdup("hdd");
358	+	}
359	+	break;
360	+	case 8:
361	+	dev_letter='a'+(minor/16);
362	+	diskio_stats_ptr->disk_name=malloc(4);
363	+	snprintf(diskio_stats_ptr->disk_name, 4, "sd%c", dev_letter);
364	+	break;
365	+	default:
366	+	/* I have no idea what it is then :) */
367	+	diskio_stats_ptr->disk_name=malloc(16);
368	+	snprintf(diskio_stats_ptr->disk_name, 16, "%d %d", major, minor);
369	+	break;
370	+	}
371	+
372	+	num_diskio++;
373	+	}
374	+
375	+	#endif
376	+	*entries=num_diskio;
377	+
378	+	return diskio_stats;
379	+	}
380	+
381	+	diskio_stat_t *get_diskio_stats_diff(int *entries){
382	+	static diskio_stat_t *diskio_stats_diff=NULL;
383	+	static int sizeof_diskio_stats_diff=0;
384	+	diskio_stat_t *diskio_stats_diff_ptr, *diskio_stats_ptr;
385	+	int disks, x, y;
386	+
387	+	if(diskio_stats==NULL){
388	+	diskio_stats_ptr=get_diskio_stats(&disks);
389	+	*entries=disks;
390	+	return diskio_stats_ptr;
391	+	}
392	+
393	+	diskio_stats_diff=diskio_stat_malloc(num_diskio, &sizeof_diskio_stats_diff, diskio_stats_diff);
394	+	if(diskio_stats_diff==NULL){
395	+	return NULL;
396	+	}
397	+
398	+	diskio_stats_diff_ptr=diskio_stats_diff;
399	+	diskio_stats_ptr=diskio_stats;
400	+
401	+	for(disks=0;disks<num_diskio;disks++){
402	+	if(diskio_stats_diff_ptr->disk_name!=NULL){
403	+	free(diskio_stats_diff_ptr->disk_name);
404	+	}
405	+	diskio_stats_diff_ptr->disk_name=strdup(diskio_stats_ptr->disk_name);
406	+	diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes;
407	+	diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes;
408	+	diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime;
409	+
410	+	diskio_stats_diff_ptr++;
411	+	diskio_stats_ptr++;
412	+	}
413	+
414	+	diskio_stats_ptr=get_diskio_stats(&disks);
415	+	diskio_stats_diff_ptr=diskio_stats_diff;
416	+
417	+	for(x=0;x<sizeof_diskio_stats_diff;x++){
418	+
419	+	if((strcmp(diskio_stats_diff_ptr->disk_name, diskio_stats_ptr->disk_name))==0){
420	+	diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes-diskio_stats_diff_ptr->read_bytes;
421	+	diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes-diskio_stats_diff_ptr->write_bytes;
422	+	diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime-diskio_stats_diff_ptr->systime;
423	+	}else{
424	+	diskio_stats_ptr=diskio_stats;
425	+	for(y=0;y<disks;y++){
426	+	if((strcmp(diskio_stats_diff_ptr->disk_name, diskio_stats_ptr->disk_name))==0){
427	+	diskio_stats_diff_ptr->read_bytes=diskio_stats_ptr->read_bytes-diskio_stats_diff_ptr->read_bytes;
428	+	diskio_stats_diff_ptr->write_bytes=diskio_stats_ptr->write_bytes-diskio_stats_diff_ptr->write_bytes;
429	+	diskio_stats_diff_ptr->systime=diskio_stats_ptr->systime-diskio_stats_diff_ptr->systime;
430	+
431	+	break;
432	+	}
433	+
434	+	diskio_stats_ptr++;
435	+	}
436	+	}
437	+
438	+	diskio_stats_ptr++;
439	+	diskio_stats_diff_ptr++;
440	+
441	+	}
442	+
443	+	*entries=sizeof_diskio_stats_diff;
444	+	return diskio_stats_diff;
445		}

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines