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 1.2 by pajs, Thu Feb 20 13:08:45 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	<
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 155 | Line 206 | disk_stat_t *get_disk_stats(int *entries){
206		return disk_stats;
207
208		}
209	+	void diskio_stat_init(int start, int end, diskio_stat_t *diskio_stats){
210
211	<	diskio_stat_t get_diskio_stats(int *entries){
211	>	for(diskio_stats+=start; start<end; start++){
212	>	diskio_stats->disk_name=NULL;
213	>
214	>	diskio_stats++;
215	>	}
216	>	}
217
218	<	/* Do jibble */
219	<	return NULL;
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	>
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) {
272	>	if (!strcmp(ksp->ks_class, "disk")) {
273	>
274	>	if(ksp->ks_type != KSTAT_TYPE_IO) continue;
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){
278	>	}
279	>
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+num_diskio;
285	>
286	>	diskio_stats_ptr->read_bytes=kios.nread;
287	>
288	>	diskio_stats_ptr->write_bytes=kios.nwritten;
289	>
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	>	num_diskio++;
294	>	}
295	>	}
296	>
297	>	kstat_close(kc);
298	>	#endif
299	>
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		}

Diff Legend

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